./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_byte_cursor_compare_lookup_harness_negated.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 527bcce2 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d825cfb9-6519-44c8-a710-1627de37e492/bin/utaipan-verify-QoSU8krkJ5/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d825cfb9-6519-44c8-a710-1627de37e492/bin/utaipan-verify-QoSU8krkJ5/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d825cfb9-6519-44c8-a710-1627de37e492/bin/utaipan-verify-QoSU8krkJ5/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d825cfb9-6519-44c8-a710-1627de37e492/bin/utaipan-verify-QoSU8krkJ5/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_byte_cursor_compare_lookup_harness_negated.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d825cfb9-6519-44c8-a710-1627de37e492/bin/utaipan-verify-QoSU8krkJ5/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d825cfb9-6519-44c8-a710-1627de37e492/bin/utaipan-verify-QoSU8krkJ5 --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 4aa344416a87f4156444470c426298f1edd882873481f32055fd879d96e120ca --- Real Ultimate output --- This is Ultimate 0.2.3-dev-527bcce [2023-11-21 19:48:58,729 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-21 19:48:58,855 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d825cfb9-6519-44c8-a710-1627de37e492/bin/utaipan-verify-QoSU8krkJ5/config/svcomp-Reach-64bit-Taipan_Default.epf [2023-11-21 19:48:58,864 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-21 19:48:58,865 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-21 19:48:58,905 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-21 19:48:58,905 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-21 19:48:58,906 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-21 19:48:58,907 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-21 19:48:58,914 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-21 19:48:58,915 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-21 19:48:58,915 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-21 19:48:58,916 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-21 19:48:58,918 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-21 19:48:58,918 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-21 19:48:58,918 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-21 19:48:58,919 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-21 19:48:58,919 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-21 19:48:58,919 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-21 19:48:58,920 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-21 19:48:58,920 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-21 19:48:58,921 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-21 19:48:58,922 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-21 19:48:58,922 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-21 19:48:58,923 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-21 19:48:58,923 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-21 19:48:58,924 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-21 19:48:58,924 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-21 19:48:58,924 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-21 19:48:58,925 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-21 19:48:58,926 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-21 19:48:58,926 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-21 19:48:58,927 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-21 19:48:58,927 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-21 19:48:58,927 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 19:48:58,927 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-21 19:48:58,927 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-21 19:48:58,928 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-21 19:48:58,928 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-21 19:48:58,928 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-21 19:48:58,928 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-21 19:48:58,929 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-21 19:48:58,929 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-21 19:48:58,929 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-21 19:48:58,930 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_d825cfb9-6519-44c8-a710-1627de37e492/bin/utaipan-verify-QoSU8krkJ5/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d825cfb9-6519-44c8-a710-1627de37e492/bin/utaipan-verify-QoSU8krkJ5 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4aa344416a87f4156444470c426298f1edd882873481f32055fd879d96e120ca [2023-11-21 19:48:59,264 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 19:48:59,302 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 19:48:59,305 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 19:48:59,307 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 19:48:59,307 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 19:48:59,309 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d825cfb9-6519-44c8-a710-1627de37e492/bin/utaipan-verify-QoSU8krkJ5/../../sv-benchmarks/c/aws-c-common/aws_byte_cursor_compare_lookup_harness_negated.i [2023-11-21 19:49:02,331 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 19:49:02,991 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 19:49:02,992 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d825cfb9-6519-44c8-a710-1627de37e492/sv-benchmarks/c/aws-c-common/aws_byte_cursor_compare_lookup_harness_negated.i [2023-11-21 19:49:03,034 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d825cfb9-6519-44c8-a710-1627de37e492/bin/utaipan-verify-QoSU8krkJ5/data/8ef1c5bfc/c63488411ebc44ad9e21a4d42229357c/FLAG61daa145a [2023-11-21 19:49:03,054 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d825cfb9-6519-44c8-a710-1627de37e492/bin/utaipan-verify-QoSU8krkJ5/data/8ef1c5bfc/c63488411ebc44ad9e21a4d42229357c [2023-11-21 19:49:03,061 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 19:49:03,064 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 19:49:03,066 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 19:49:03,066 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 19:49:03,073 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 19:49:03,074 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 07:49:03" (1/1) ... [2023-11-21 19:49:03,075 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2323dd70 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:49:03, skipping insertion in model container [2023-11-21 19:49:03,075 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 07:49:03" (1/1) ... [2023-11-21 19:49:03,280 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 19:49:03,648 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_d825cfb9-6519-44c8-a710-1627de37e492/sv-benchmarks/c/aws-c-common/aws_byte_cursor_compare_lookup_harness_negated.i[4504,4517] [2023-11-21 19:49:03,657 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_d825cfb9-6519-44c8-a710-1627de37e492/sv-benchmarks/c/aws-c-common/aws_byte_cursor_compare_lookup_harness_negated.i[4564,4577] [2023-11-21 19:49:04,872 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 19:49:04,873 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 19:49:04,874 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 19:49:04,875 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 19:49:04,876 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 19:49:04,901 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 19:49:04,906 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 19:49:04,912 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 19:49:04,915 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 19:49:05,454 WARN L635 FunctionHandler]: implicit declaration of function __atomic_load_n [2023-11-21 19:49:05,458 WARN L635 FunctionHandler]: implicit declaration of function __atomic_store_n [2023-11-21 19:49:05,459 WARN L635 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2023-11-21 19:49:05,467 WARN L635 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2023-11-21 19:49:05,469 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2023-11-21 19:49:05,470 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2023-11-21 19:49:05,471 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2023-11-21 19:49:05,472 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2023-11-21 19:49:05,474 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2023-11-21 19:49:05,477 WARN L635 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2023-11-21 19:49:05,815 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 19:49:05,816 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 19:49:05,896 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 19:49:06,008 INFO L202 MainTranslator]: Completed pre-run [2023-11-21 19:49:06,038 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_d825cfb9-6519-44c8-a710-1627de37e492/sv-benchmarks/c/aws-c-common/aws_byte_cursor_compare_lookup_harness_negated.i[4504,4517] [2023-11-21 19:49:06,039 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_d825cfb9-6519-44c8-a710-1627de37e492/sv-benchmarks/c/aws-c-common/aws_byte_cursor_compare_lookup_harness_negated.i[4564,4577] [2023-11-21 19:49:06,125 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 19:49:06,126 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 19:49:06,126 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 19:49:06,127 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 19:49:06,127 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 19:49:06,135 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 19:49:06,141 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 19:49:06,144 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 19:49:06,145 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 19:49:06,211 WARN L635 FunctionHandler]: implicit declaration of function __atomic_load_n [2023-11-21 19:49:06,212 WARN L635 FunctionHandler]: implicit declaration of function __atomic_store_n [2023-11-21 19:49:06,213 WARN L635 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2023-11-21 19:49:06,214 WARN L635 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2023-11-21 19:49:06,215 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2023-11-21 19:49:06,216 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2023-11-21 19:49:06,217 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2023-11-21 19:49:06,217 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2023-11-21 19:49:06,218 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2023-11-21 19:49:06,221 WARN L635 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2023-11-21 19:49:06,352 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : "+r"(index)); [8245] [2023-11-21 19:49:06,355 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 19:49:06,355 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 19:49:06,383 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [8731-8742] [2023-11-21 19:49:06,417 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 19:49:06,678 WARN L675 CHandler]: The function __atomic_fetch_or is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 19:49:06,678 WARN L675 CHandler]: The function __atomic_fetch_sub is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 19:49:06,679 WARN L675 CHandler]: The function __atomic_exchange_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 19:49:06,679 WARN L675 CHandler]: The function __atomic_fetch_xor is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 19:49:06,680 WARN L675 CHandler]: The function htons is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 19:49:06,680 WARN L675 CHandler]: The function ntohl is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 19:49:06,681 WARN L675 CHandler]: The function __atomic_compare_exchange_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 19:49:06,681 WARN L675 CHandler]: The function __atomic_fetch_add is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 19:49:06,681 WARN L675 CHandler]: The function fprintf is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 19:49:06,682 WARN L675 CHandler]: The function htonl is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 19:49:06,682 WARN L675 CHandler]: The function __atomic_store_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 19:49:06,682 WARN L675 CHandler]: The function ntohs is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 19:49:06,682 WARN L675 CHandler]: The function predicate is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 19:49:06,683 WARN L675 CHandler]: The function __atomic_load_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 19:49:06,683 WARN L675 CHandler]: The function memcmp is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 19:49:06,683 WARN L675 CHandler]: The function __atomic_thread_fence is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 19:49:06,684 WARN L675 CHandler]: The function __atomic_fetch_and is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 19:49:06,684 WARN L675 CHandler]: The function memchr is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 19:49:06,692 INFO L206 MainTranslator]: Completed translation [2023-11-21 19:49:06,693 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:49:06 WrapperNode [2023-11-21 19:49:06,693 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-21 19:49:06,694 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-21 19:49:06,694 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-21 19:49:06,694 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-21 19:49:06,710 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:49:06" (1/1) ... [2023-11-21 19:49:06,843 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:49:06" (1/1) ... [2023-11-21 19:49:06,960 INFO L138 Inliner]: procedures = 690, calls = 2652, calls flagged for inlining = 58, calls inlined = 4, statements flattened = 828 [2023-11-21 19:49:06,960 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-21 19:49:06,961 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-21 19:49:06,961 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-21 19:49:06,961 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-21 19:49:06,972 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:49:06" (1/1) ... [2023-11-21 19:49:06,972 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:49:06" (1/1) ... [2023-11-21 19:49:06,984 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:49:06" (1/1) ... [2023-11-21 19:49:06,984 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:49:06" (1/1) ... [2023-11-21 19:49:07,036 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:49:06" (1/1) ... [2023-11-21 19:49:07,054 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:49:06" (1/1) ... [2023-11-21 19:49:07,064 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:49:06" (1/1) ... [2023-11-21 19:49:07,090 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:49:06" (1/1) ... [2023-11-21 19:49:07,104 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-21 19:49:07,105 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-21 19:49:07,105 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-21 19:49:07,105 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-21 19:49:07,106 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:49:06" (1/1) ... [2023-11-21 19:49:07,126 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 19:49:07,139 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d825cfb9-6519-44c8-a710-1627de37e492/bin/utaipan-verify-QoSU8krkJ5/z3 [2023-11-21 19:49:07,155 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d825cfb9-6519-44c8-a710-1627de37e492/bin/utaipan-verify-QoSU8krkJ5/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-21 19:49:07,191 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d825cfb9-6519-44c8-a710-1627de37e492/bin/utaipan-verify-QoSU8krkJ5/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-21 19:49:07,208 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_cursor_is_valid [2023-11-21 19:49:07,208 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_cursor_is_valid [2023-11-21 19:49:07,208 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-21 19:49:07,209 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2023-11-21 19:49:07,209 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2023-11-21 19:49:07,209 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-21 19:49:07,209 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_cursor_is_bounded [2023-11-21 19:49:07,210 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_cursor_is_bounded [2023-11-21 19:49:07,210 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-21 19:49:07,210 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-21 19:49:07,210 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-21 19:49:07,211 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-21 19:49:07,211 INFO L130 BoogieDeclarations]: Found specification of procedure save_byte_from_array [2023-11-21 19:49:07,211 INFO L138 BoogieDeclarations]: Found implementation of procedure save_byte_from_array [2023-11-21 19:49:07,211 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-21 19:49:07,211 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-21 19:49:07,212 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-21 19:49:07,212 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2023-11-21 19:49:07,212 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2023-11-21 19:49:07,212 INFO L130 BoogieDeclarations]: Found specification of procedure assert_byte_from_buffer_matches [2023-11-21 19:49:07,212 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_byte_from_buffer_matches [2023-11-21 19:49:07,212 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-21 19:49:07,213 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-21 19:49:07,213 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-21 19:49:07,213 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-21 19:49:07,214 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-21 19:49:07,214 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-21 19:49:07,214 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_byte_cursor_has_allocated_buffer_member [2023-11-21 19:49:07,214 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_byte_cursor_has_allocated_buffer_member [2023-11-21 19:49:07,214 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_cursor_compare_lookup [2023-11-21 19:49:07,215 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_cursor_compare_lookup [2023-11-21 19:49:07,215 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-21 19:49:07,594 INFO L240 CfgBuilder]: Building ICFG [2023-11-21 19:49:07,596 INFO L266 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-21 19:49:09,098 INFO L281 CfgBuilder]: Performing block encoding [2023-11-21 19:49:09,366 INFO L303 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-21 19:49:09,366 INFO L308 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-21 19:49:09,369 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 07:49:09 BoogieIcfgContainer [2023-11-21 19:49:09,369 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-21 19:49:09,371 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-21 19:49:09,371 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-21 19:49:09,375 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-21 19:49:09,375 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 07:49:03" (1/3) ... [2023-11-21 19:49:09,376 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@256377c7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 07:49:09, skipping insertion in model container [2023-11-21 19:49:09,376 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:49:06" (2/3) ... [2023-11-21 19:49:09,376 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@256377c7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 07:49:09, skipping insertion in model container [2023-11-21 19:49:09,377 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 07:49:09" (3/3) ... [2023-11-21 19:49:09,379 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_byte_cursor_compare_lookup_harness_negated.i [2023-11-21 19:49:09,401 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-21 19:49:09,401 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-21 19:49:09,470 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-21 19:49:09,483 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;@6bf1cfb9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-21 19:49:09,483 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-21 19:49:09,488 INFO L276 IsEmpty]: Start isEmpty. Operand has 109 states, 56 states have (on average 1.2142857142857142) internal successors, (68), 57 states have internal predecessors, (68), 41 states have call successors, (41), 10 states have call predecessors, (41), 10 states have return successors, (41), 41 states have call predecessors, (41), 41 states have call successors, (41) [2023-11-21 19:49:09,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2023-11-21 19:49:09,502 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 19:49:09,503 INFO L195 NwaCegarLoop]: trace histogram [5, 4, 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] [2023-11-21 19:49:09,504 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-21 19:49:09,509 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 19:49:09,510 INFO L85 PathProgramCache]: Analyzing trace with hash -1377131898, now seen corresponding path program 1 times [2023-11-21 19:49:09,520 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-21 19:49:09,521 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1078696433] [2023-11-21 19:49:09,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 19:49:09,522 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 19:49:11,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 19:49:24,551 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 5 proven. 5 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-11-21 19:49:24,552 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-21 19:49:24,553 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1078696433] [2023-11-21 19:49:24,554 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1078696433] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-21 19:49:24,554 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1863100280] [2023-11-21 19:49:24,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 19:49:24,554 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 19:49:24,555 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d825cfb9-6519-44c8-a710-1627de37e492/bin/utaipan-verify-QoSU8krkJ5/z3 [2023-11-21 19:49:24,559 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d825cfb9-6519-44c8-a710-1627de37e492/bin/utaipan-verify-QoSU8krkJ5/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-21 19:49:24,592 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d825cfb9-6519-44c8-a710-1627de37e492/bin/utaipan-verify-QoSU8krkJ5/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-21 19:49:25,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 19:49:25,338 INFO L262 TraceCheckSpWp]: Trace formula consists of 2630 conjuncts, 86 conjunts are in the unsatisfiable core [2023-11-21 19:49:25,356 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 19:49:25,618 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2023-11-21 19:49:25,626 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 13 [2023-11-21 19:49:25,631 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2023-11-21 19:49:25,671 INFO L349 Elim1Store]: treesize reduction 57, result has 23.0 percent of original size [2023-11-21 19:49:25,671 INFO L378 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 1 case distinctions, treesize of input 26 treesize of output 25 [2023-11-21 19:49:29,975 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-21 19:49:29,978 INFO L378 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 135 treesize of output 123 [2023-11-21 19:49:30,009 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-21 19:49:30,013 INFO L378 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 111 treesize of output 99 [2023-11-21 19:49:30,946 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 11 proven. 22 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-11-21 19:49:30,946 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-21 19:49:32,654 WARN L176 XnfTransformerHelper]: Simplifying conjunction of 10832 disjunctions. This might take some time... [2023-11-21 19:49:43,604 INFO L192 XnfTransformerHelper]: Simplified to conjunction of 10816 disjunctions.