./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_byte_buf_append_harness_negated.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_9651aec0-bf5f-4a1e-ac0e-9992c35bec52/bin/utaipan-verify-NcY6lQBIFX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9651aec0-bf5f-4a1e-ac0e-9992c35bec52/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_9651aec0-bf5f-4a1e-ac0e-9992c35bec52/bin/utaipan-verify-NcY6lQBIFX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9651aec0-bf5f-4a1e-ac0e-9992c35bec52/bin/utaipan-verify-NcY6lQBIFX/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_byte_buf_append_harness_negated.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9651aec0-bf5f-4a1e-ac0e-9992c35bec52/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_9651aec0-bf5f-4a1e-ac0e-9992c35bec52/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 261b1cb19a19710392e8d342993a2adafcf7d2aa116ee074c520b900d3eff708 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 00:59:21,636 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 00:59:21,758 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9651aec0-bf5f-4a1e-ac0e-9992c35bec52/bin/utaipan-verify-NcY6lQBIFX/config/svcomp-Reach-64bit-Taipan_Default.epf [2023-11-12 00:59:21,763 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 00:59:21,769 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 00:59:21,808 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 00:59:21,809 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 00:59:21,809 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 00:59:21,811 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 00:59:21,816 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 00:59:21,816 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-12 00:59:21,817 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-12 00:59:21,817 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-12 00:59:21,819 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-12 00:59:21,820 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-12 00:59:21,820 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-12 00:59:21,821 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-12 00:59:21,821 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-12 00:59:21,822 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-12 00:59:21,823 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-12 00:59:21,824 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-12 00:59:21,825 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-12 00:59:21,826 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 00:59:21,827 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-12 00:59:21,827 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-12 00:59:21,828 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 00:59:21,828 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-12 00:59:21,829 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 00:59:21,829 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-12 00:59:21,830 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-12 00:59:21,831 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 00:59:21,832 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 00:59:21,832 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 00:59:21,832 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 00:59:21,833 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 00:59:21,833 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 00:59:21,859 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-12 00:59:21,859 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-12 00:59:21,859 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-12 00:59:21,860 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-12 00:59:21,860 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-12 00:59:21,862 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 00:59:21,862 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_9651aec0-bf5f-4a1e-ac0e-9992c35bec52/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9651aec0-bf5f-4a1e-ac0e-9992c35bec52/bin/utaipan-verify-NcY6lQBIFX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 261b1cb19a19710392e8d342993a2adafcf7d2aa116ee074c520b900d3eff708 [2023-11-12 00:59:22,208 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 00:59:22,237 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 00:59:22,240 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 00:59:22,241 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 00:59:22,242 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 00:59:22,243 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9651aec0-bf5f-4a1e-ac0e-9992c35bec52/bin/utaipan-verify-NcY6lQBIFX/../../sv-benchmarks/c/aws-c-common/aws_byte_buf_append_harness_negated.i [2023-11-12 00:59:25,356 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 00:59:25,945 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 00:59:25,945 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9651aec0-bf5f-4a1e-ac0e-9992c35bec52/sv-benchmarks/c/aws-c-common/aws_byte_buf_append_harness_negated.i [2023-11-12 00:59:25,993 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9651aec0-bf5f-4a1e-ac0e-9992c35bec52/bin/utaipan-verify-NcY6lQBIFX/data/fbb427445/759e49246c4848f9ab69e74be7acb92b/FLAG64c32cb27 [2023-11-12 00:59:26,008 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9651aec0-bf5f-4a1e-ac0e-9992c35bec52/bin/utaipan-verify-NcY6lQBIFX/data/fbb427445/759e49246c4848f9ab69e74be7acb92b [2023-11-12 00:59:26,011 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 00:59:26,012 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 00:59:26,013 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 00:59:26,014 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 00:59:26,019 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 00:59:26,020 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:59:26" (1/1) ... [2023-11-12 00:59:26,021 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7c5e87b2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:59:26, skipping insertion in model container [2023-11-12 00:59:26,021 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:59:26" (1/1) ... [2023-11-12 00:59:26,166 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 00:59:26,414 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_9651aec0-bf5f-4a1e-ac0e-9992c35bec52/sv-benchmarks/c/aws-c-common/aws_byte_buf_append_harness_negated.i[4493,4506] [2023-11-12 00:59:26,422 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_9651aec0-bf5f-4a1e-ac0e-9992c35bec52/sv-benchmarks/c/aws-c-common/aws_byte_buf_append_harness_negated.i[4553,4566] [2023-11-12 00:59:27,413 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:59:27,414 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:59:27,415 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:59:27,416 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:59:27,418 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:59:27,435 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:59:27,436 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:59:27,438 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:59:27,439 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:59:28,000 WARN L635 FunctionHandler]: implicit declaration of function __atomic_load_n [2023-11-12 00:59:28,018 WARN L635 FunctionHandler]: implicit declaration of function __atomic_store_n [2023-11-12 00:59:28,019 WARN L635 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2023-11-12 00:59:28,020 WARN L635 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2023-11-12 00:59:28,022 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2023-11-12 00:59:28,023 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2023-11-12 00:59:28,024 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2023-11-12 00:59:28,025 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2023-11-12 00:59:28,025 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2023-11-12 00:59:28,026 WARN L635 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2023-11-12 00:59:28,386 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:59:28,387 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:59:28,503 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:59:28,631 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 00:59:28,657 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_9651aec0-bf5f-4a1e-ac0e-9992c35bec52/sv-benchmarks/c/aws-c-common/aws_byte_buf_append_harness_negated.i[4493,4506] [2023-11-12 00:59:28,657 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_9651aec0-bf5f-4a1e-ac0e-9992c35bec52/sv-benchmarks/c/aws-c-common/aws_byte_buf_append_harness_negated.i[4553,4566] [2023-11-12 00:59:28,726 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:59:28,727 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:59:28,727 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:59:28,728 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:59:28,729 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:59:28,751 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:59:28,752 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:59:28,753 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:59:28,753 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:59:28,802 WARN L635 FunctionHandler]: implicit declaration of function __atomic_load_n [2023-11-12 00:59:28,803 WARN L635 FunctionHandler]: implicit declaration of function __atomic_store_n [2023-11-12 00:59:28,804 WARN L635 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2023-11-12 00:59:28,807 WARN L635 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2023-11-12 00:59:28,809 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2023-11-12 00:59:28,810 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2023-11-12 00:59:28,811 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2023-11-12 00:59:28,811 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2023-11-12 00:59:28,812 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2023-11-12 00:59:28,812 WARN L635 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2023-11-12 00:59:28,927 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : "+r"(index)); [8259] [2023-11-12 00:59:28,929 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:59:28,931 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:59:28,947 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [8745-8756] [2023-11-12 00:59:28,979 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:59:29,281 WARN L672 CHandler]: The function __atomic_fetch_or is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:59:29,281 WARN L672 CHandler]: The function __atomic_fetch_sub is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:59:29,281 WARN L672 CHandler]: The function __atomic_exchange_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:59:29,281 WARN L672 CHandler]: The function __atomic_fetch_xor is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:59:29,282 WARN L672 CHandler]: The function htons is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:59:29,282 WARN L672 CHandler]: The function ntohl is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:59:29,282 WARN L672 CHandler]: The function __atomic_compare_exchange_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:59:29,283 WARN L672 CHandler]: The function __atomic_fetch_add is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:59:29,283 WARN L672 CHandler]: The function fprintf is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:59:29,283 WARN L672 CHandler]: The function htonl is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:59:29,283 WARN L672 CHandler]: The function __atomic_store_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:59:29,283 WARN L672 CHandler]: The function ntohs is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:59:29,283 WARN L672 CHandler]: The function predicate is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:59:29,284 WARN L672 CHandler]: The function __atomic_load_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:59:29,284 WARN L672 CHandler]: The function memcmp is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:59:29,285 WARN L672 CHandler]: The function __atomic_thread_fence is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:59:29,285 WARN L672 CHandler]: The function __atomic_fetch_and is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:59:29,285 WARN L672 CHandler]: The function memchr is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:59:29,293 INFO L206 MainTranslator]: Completed translation [2023-11-12 00:59:29,294 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:59:29 WrapperNode [2023-11-12 00:59:29,294 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 00:59:29,296 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 00:59:29,296 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 00:59:29,296 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 00:59:29,304 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:59:29" (1/1) ... [2023-11-12 00:59:29,404 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:59:29" (1/1) ... [2023-11-12 00:59:29,488 INFO L138 Inliner]: procedures = 690, calls = 2646, calls flagged for inlining = 60, calls inlined = 8, statements flattened = 857 [2023-11-12 00:59:29,489 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 00:59:29,490 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 00:59:29,490 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 00:59:29,490 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 00:59:29,501 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:59:29" (1/1) ... [2023-11-12 00:59:29,501 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:59:29" (1/1) ... [2023-11-12 00:59:29,510 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:59:29" (1/1) ... [2023-11-12 00:59:29,511 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:59:29" (1/1) ... [2023-11-12 00:59:29,554 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:59:29" (1/1) ... [2023-11-12 00:59:29,558 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:59:29" (1/1) ... [2023-11-12 00:59:29,567 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:59:29" (1/1) ... [2023-11-12 00:59:29,574 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:59:29" (1/1) ... [2023-11-12 00:59:29,587 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 00:59:29,588 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 00:59:29,588 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 00:59:29,588 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 00:59:29,589 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:59:29" (1/1) ... [2023-11-12 00:59:29,595 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 00:59:29,617 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9651aec0-bf5f-4a1e-ac0e-9992c35bec52/bin/utaipan-verify-NcY6lQBIFX/z3 [2023-11-12 00:59:29,632 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9651aec0-bf5f-4a1e-ac0e-9992c35bec52/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-12 00:59:29,661 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9651aec0-bf5f-4a1e-ac0e-9992c35bec52/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-12 00:59:29,674 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_buf_is_valid [2023-11-12 00:59:29,675 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_buf_is_valid [2023-11-12 00:59:29,675 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_cursor_is_valid [2023-11-12 00:59:29,675 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_cursor_is_valid [2023-11-12 00:59:29,676 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-12 00:59:29,676 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2023-11-12 00:59:29,676 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2023-11-12 00:59:29,676 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_buf_append [2023-11-12 00:59:29,676 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_buf_append [2023-11-12 00:59:29,677 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-12 00:59:29,677 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2023-11-12 00:59:29,677 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2023-11-12 00:59:29,677 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-12 00:59:29,678 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-12 00:59:29,678 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-12 00:59:29,679 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-12 00:59:29,679 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-12 00:59:29,679 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_impl [2023-11-12 00:59:29,679 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_impl [2023-11-12 00:59:29,679 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 00:59:29,679 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 00:59:29,680 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2023-11-12 00:59:29,680 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2023-11-12 00:59:29,680 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-12 00:59:29,681 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-12 00:59:29,681 INFO L130 BoogieDeclarations]: Found specification of procedure my_memcpy [2023-11-12 00:59:29,681 INFO L138 BoogieDeclarations]: Found implementation of procedure my_memcpy [2023-11-12 00:59:29,681 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-12 00:59:29,681 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-12 00:59:29,681 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-12 00:59:29,682 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2023-11-12 00:59:29,682 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2023-11-12 00:59:29,682 INFO L130 BoogieDeclarations]: Found specification of procedure assert_bytes_match [2023-11-12 00:59:29,682 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_bytes_match [2023-11-12 00:59:29,682 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2023-11-12 00:59:29,683 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2023-11-12 00:59:29,683 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-12 00:59:29,683 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-12 00:59:30,008 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 00:59:30,011 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 00:59:31,516 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 00:59:32,056 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 00:59:32,056 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-12 00:59:32,059 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:59:32 BoogieIcfgContainer [2023-11-12 00:59:32,059 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 00:59:32,062 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-12 00:59:32,062 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-12 00:59:32,065 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-12 00:59:32,065 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 12:59:26" (1/3) ... [2023-11-12 00:59:32,066 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@22a3237f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:59:32, skipping insertion in model container [2023-11-12 00:59:32,066 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:59:29" (2/3) ... [2023-11-12 00:59:32,067 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@22a3237f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:59:32, skipping insertion in model container [2023-11-12 00:59:32,067 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:59:32" (3/3) ... [2023-11-12 00:59:32,068 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_byte_buf_append_harness_negated.i [2023-11-12 00:59:32,089 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-12 00:59:32,089 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-12 00:59:32,144 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-12 00:59:32,151 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;@7180ad81, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-12 00:59:32,151 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-12 00:59:32,156 INFO L276 IsEmpty]: Start isEmpty. Operand has 124 states, 61 states have (on average 1.1475409836065573) internal successors, (70), 62 states have internal predecessors, (70), 48 states have call successors, (48), 13 states have call predecessors, (48), 13 states have return successors, (48), 48 states have call predecessors, (48), 48 states have call successors, (48) [2023-11-12 00:59:32,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2023-11-12 00:59:32,168 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:59:32,169 INFO L195 NwaCegarLoop]: trace histogram [7, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 00:59:32,170 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 00:59:32,175 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:59:32,175 INFO L85 PathProgramCache]: Analyzing trace with hash 1824703019, now seen corresponding path program 1 times [2023-11-12 00:59:32,185 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:59:32,186 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1543819317] [2023-11-12 00:59:32,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:59:32,186 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:59:34,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:59:41,080 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 4 proven. 3 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2023-11-12 00:59:41,081 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:59:41,081 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1543819317] [2023-11-12 00:59:41,082 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1543819317] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-12 00:59:41,082 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1086939724] [2023-11-12 00:59:41,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:59:41,084 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 00:59:41,084 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9651aec0-bf5f-4a1e-ac0e-9992c35bec52/bin/utaipan-verify-NcY6lQBIFX/z3 [2023-11-12 00:59:41,091 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9651aec0-bf5f-4a1e-ac0e-9992c35bec52/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 00:59:41,127 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9651aec0-bf5f-4a1e-ac0e-9992c35bec52/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-12 00:59:41,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:59:41,877 INFO L262 TraceCheckSpWp]: Trace formula consists of 2571 conjuncts, 64 conjunts are in the unsatisfiable core [2023-11-12 00:59:41,894 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 00:59:42,283 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 8 treesize of output 1 [2023-11-12 00:59:42,288 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 11 treesize of output 7 [2023-11-12 00:59:42,296 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 11 treesize of output 7 [2023-11-12 00:59:44,526 INFO L322 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2023-11-12 00:59:44,527 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 7 [2023-11-12 00:59:44,541 INFO L322 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2023-11-12 00:59:44,541 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 7 [2023-11-12 00:59:45,709 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2023-11-12 00:59:45,740 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 7 proven. 32 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-11-12 00:59:45,741 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-12 00:59:47,210 WARN L176 XnfTransformerHelper]: Simplifying conjunction of 10832 disjunctions. This might take some time... [2023-11-12 00:59:57,949 INFO L192 XnfTransformerHelper]: Simplified to conjunction of 10816 disjunctions.