./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_hash_string_harness_negated.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version cf1a7837 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_c4627f07-d895-44f6-ba56-3fd7e9034092/bin/utaipan-verify-NcY6lQBIFX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4627f07-d895-44f6-ba56-3fd7e9034092/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_c4627f07-d895-44f6-ba56-3fd7e9034092/bin/utaipan-verify-NcY6lQBIFX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4627f07-d895-44f6-ba56-3fd7e9034092/bin/utaipan-verify-NcY6lQBIFX/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_hash_string_harness_negated.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4627f07-d895-44f6-ba56-3fd7e9034092/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_c4627f07-d895-44f6-ba56-3fd7e9034092/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 c5854c8cac16af03a163cca5fe4aca6e8aced6fa2e813be9792ba80c95af863c --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 00:08:50,547 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 00:08:50,652 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4627f07-d895-44f6-ba56-3fd7e9034092/bin/utaipan-verify-NcY6lQBIFX/config/svcomp-Reach-64bit-Taipan_Default.epf [2023-11-12 00:08:50,657 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 00:08:50,658 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 00:08:50,686 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 00:08:50,687 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 00:08:50,687 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 00:08:50,688 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 00:08:50,689 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 00:08:50,690 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-12 00:08:50,690 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-12 00:08:50,691 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-12 00:08:50,692 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-12 00:08:50,692 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-12 00:08:50,693 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-12 00:08:50,694 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-12 00:08:50,694 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-12 00:08:50,695 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-12 00:08:50,695 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-12 00:08:50,696 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-12 00:08:50,697 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-12 00:08:50,698 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 00:08:50,698 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-12 00:08:50,699 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-12 00:08:50,719 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 00:08:50,720 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-12 00:08:50,720 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 00:08:50,721 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-12 00:08:50,721 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-12 00:08:50,723 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 00:08:50,723 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 00:08:50,724 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 00:08:50,724 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 00:08:50,724 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 00:08:50,725 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 00:08:50,725 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-12 00:08:50,726 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-12 00:08:50,726 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-12 00:08:50,726 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-12 00:08:50,727 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-12 00:08:50,727 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 00:08:50,728 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_c4627f07-d895-44f6-ba56-3fd7e9034092/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4627f07-d895-44f6-ba56-3fd7e9034092/bin/utaipan-verify-NcY6lQBIFX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c5854c8cac16af03a163cca5fe4aca6e8aced6fa2e813be9792ba80c95af863c [2023-11-12 00:08:51,006 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 00:08:51,043 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 00:08:51,045 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 00:08:51,047 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 00:08:51,047 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 00:08:51,049 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4627f07-d895-44f6-ba56-3fd7e9034092/bin/utaipan-verify-NcY6lQBIFX/../../sv-benchmarks/c/aws-c-common/aws_hash_string_harness_negated.i [2023-11-12 00:08:54,254 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 00:08:54,873 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 00:08:54,873 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4627f07-d895-44f6-ba56-3fd7e9034092/sv-benchmarks/c/aws-c-common/aws_hash_string_harness_negated.i [2023-11-12 00:08:54,931 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4627f07-d895-44f6-ba56-3fd7e9034092/bin/utaipan-verify-NcY6lQBIFX/data/7a0b9be07/8e9b15010b63429fb8797a5df6877d7d/FLAG6051532e0 [2023-11-12 00:08:54,949 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4627f07-d895-44f6-ba56-3fd7e9034092/bin/utaipan-verify-NcY6lQBIFX/data/7a0b9be07/8e9b15010b63429fb8797a5df6877d7d [2023-11-12 00:08:54,958 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 00:08:54,961 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 00:08:54,965 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 00:08:54,965 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 00:08:54,973 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 00:08:54,974 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:08:54" (1/1) ... [2023-11-12 00:08:54,975 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2def8144 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:08:54, skipping insertion in model container [2023-11-12 00:08:54,976 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:08:54" (1/1) ... [2023-11-12 00:08:55,119 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 00:08:55,416 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_c4627f07-d895-44f6-ba56-3fd7e9034092/sv-benchmarks/c/aws-c-common/aws_hash_string_harness_negated.i[4489,4502] [2023-11-12 00:08:55,424 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_c4627f07-d895-44f6-ba56-3fd7e9034092/sv-benchmarks/c/aws-c-common/aws_hash_string_harness_negated.i[4549,4562] [2023-11-12 00:08:56,587 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:08:56,588 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:08:56,589 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:08:56,590 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:08:56,591 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:08:56,616 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:08:56,617 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:08:56,620 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:08:56,621 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:08:56,623 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:08:56,625 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:08:56,626 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:08:56,626 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:08:57,160 WARN L635 FunctionHandler]: implicit declaration of function __atomic_load_n [2023-11-12 00:08:57,161 WARN L635 FunctionHandler]: implicit declaration of function __atomic_store_n [2023-11-12 00:08:57,163 WARN L635 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2023-11-12 00:08:57,164 WARN L635 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2023-11-12 00:08:57,166 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2023-11-12 00:08:57,167 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2023-11-12 00:08:57,168 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2023-11-12 00:08:57,169 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2023-11-12 00:08:57,170 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2023-11-12 00:08:57,170 WARN L635 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2023-11-12 00:08:57,789 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:08:57,790 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:08:57,827 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:08:57,828 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:08:57,836 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:08:57,837 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:08:57,857 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:08:57,858 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:08:57,859 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:08:57,859 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:08:57,860 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:08:57,861 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:08:57,861 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:08:57,918 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:08:57,979 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 00:08:58,005 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_c4627f07-d895-44f6-ba56-3fd7e9034092/sv-benchmarks/c/aws-c-common/aws_hash_string_harness_negated.i[4489,4502] [2023-11-12 00:08:58,006 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_c4627f07-d895-44f6-ba56-3fd7e9034092/sv-benchmarks/c/aws-c-common/aws_hash_string_harness_negated.i[4549,4562] [2023-11-12 00:08:58,067 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:08:58,068 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:08:58,068 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:08:58,069 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:08:58,072 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:08:58,084 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:08:58,085 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:08:58,086 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:08:58,086 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:08:58,088 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:08:58,089 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:08:58,089 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:08:58,090 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:08:58,139 WARN L635 FunctionHandler]: implicit declaration of function __atomic_load_n [2023-11-12 00:08:58,141 WARN L635 FunctionHandler]: implicit declaration of function __atomic_store_n [2023-11-12 00:08:58,142 WARN L635 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2023-11-12 00:08:58,145 WARN L635 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2023-11-12 00:08:58,147 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2023-11-12 00:08:58,147 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2023-11-12 00:08:58,148 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2023-11-12 00:08:58,149 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2023-11-12 00:08:58,150 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2023-11-12 00:08:58,151 WARN L635 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2023-11-12 00:08:58,198 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [7526-7537] [2023-11-12 00:08:58,309 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:08:58,365 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:08:58,373 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:08:58,374 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:08:58,379 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:08:58,380 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:08:58,389 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:08:58,390 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:08:58,391 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:08:58,391 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:08:58,392 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:08:58,393 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:08:58,394 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:08:58,421 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:08:58,694 WARN L672 CHandler]: The function __atomic_fetch_or is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:08:58,695 WARN L672 CHandler]: The function equals_fn is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:08:58,695 WARN L672 CHandler]: The function __atomic_fetch_sub is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:08:58,695 WARN L672 CHandler]: The function __atomic_exchange_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:08:58,695 WARN L672 CHandler]: The function __atomic_fetch_xor is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:08:58,695 WARN L672 CHandler]: The function htons is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:08:58,696 WARN L672 CHandler]: The function ntohl is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:08:58,696 WARN L672 CHandler]: The function __atomic_compare_exchange_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:08:58,696 WARN L672 CHandler]: The function __atomic_fetch_add is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:08:58,696 WARN L672 CHandler]: The function fprintf is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:08:58,696 WARN L672 CHandler]: The function htonl is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:08:58,697 WARN L672 CHandler]: The function __atomic_store_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:08:58,697 WARN L672 CHandler]: The function ntohs is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:08:58,697 WARN L672 CHandler]: The function __atomic_load_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:08:58,697 WARN L672 CHandler]: The function memcmp is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:08:58,697 WARN L672 CHandler]: The function __atomic_thread_fence is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:08:58,698 WARN L672 CHandler]: The function callback is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:08:58,698 WARN L672 CHandler]: The function __atomic_fetch_and is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:08:58,698 WARN L672 CHandler]: The function aws_array_list_ensure_capacity is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:08:58,706 INFO L206 MainTranslator]: Completed translation [2023-11-12 00:08:58,707 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:08:58 WrapperNode [2023-11-12 00:08:58,707 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 00:08:58,708 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 00:08:58,709 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 00:08:58,709 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 00:08:58,718 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:08:58" (1/1) ... [2023-11-12 00:08:58,874 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:08:58" (1/1) ... [2023-11-12 00:08:58,963 INFO L138 Inliner]: procedures = 772, calls = 2484, calls flagged for inlining = 67, calls inlined = 5, statements flattened = 533 [2023-11-12 00:08:58,964 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 00:08:58,964 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 00:08:58,965 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 00:08:58,965 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 00:08:58,975 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:08:58" (1/1) ... [2023-11-12 00:08:58,976 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:08:58" (1/1) ... [2023-11-12 00:08:58,997 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:08:58" (1/1) ... [2023-11-12 00:08:58,998 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:08:58" (1/1) ... [2023-11-12 00:08:59,068 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:08:58" (1/1) ... [2023-11-12 00:08:59,078 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:08:58" (1/1) ... [2023-11-12 00:08:59,109 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:08:58" (1/1) ... [2023-11-12 00:08:59,120 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:08:58" (1/1) ... [2023-11-12 00:08:59,138 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 00:08:59,141 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 00:08:59,142 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 00:08:59,142 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 00:08:59,143 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:08:58" (1/1) ... [2023-11-12 00:08:59,167 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 00:08:59,179 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4627f07-d895-44f6-ba56-3fd7e9034092/bin/utaipan-verify-NcY6lQBIFX/z3 [2023-11-12 00:08:59,197 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4627f07-d895-44f6-ba56-3fd7e9034092/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-12 00:08:59,232 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4627f07-d895-44f6-ba56-3fd7e9034092/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-12 00:08:59,247 INFO L130 BoogieDeclarations]: Found specification of procedure aws_string_is_valid [2023-11-12 00:08:59,248 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_string_is_valid [2023-11-12 00:08:59,249 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_string_is_allocated_bounded_length [2023-11-12 00:08:59,249 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_string_is_allocated_bounded_length [2023-11-12 00:08:59,249 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2023-11-12 00:08:59,249 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2023-11-12 00:08:59,249 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-12 00:08:59,249 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-12 00:08:59,250 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-12 00:08:59,250 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-12 00:08:59,250 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-12 00:08:59,250 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-12 00:08:59,250 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 00:08:59,250 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 00:08:59,251 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2023-11-12 00:08:59,251 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2023-11-12 00:08:59,251 INFO L130 BoogieDeclarations]: Found specification of procedure aws_string_bytes [2023-11-12 00:08:59,253 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_string_bytes [2023-11-12 00:08:59,253 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-12 00:08:59,253 INFO L130 BoogieDeclarations]: Found specification of procedure hashlittle2 [2023-11-12 00:08:59,253 INFO L138 BoogieDeclarations]: Found implementation of procedure hashlittle2 [2023-11-12 00:08:59,253 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2023-11-12 00:08:59,253 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2023-11-12 00:08:59,253 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-12 00:08:59,254 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-12 00:08:59,254 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-12 00:08:59,254 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-12 00:08:59,254 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-12 00:08:59,254 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2023-11-12 00:08:59,254 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2023-11-12 00:08:59,255 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-12 00:08:59,671 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 00:08:59,674 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 00:09:01,800 INFO L770 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##11: assume !true; [2023-11-12 00:09:01,810 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 00:09:03,958 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 00:09:03,959 INFO L302 CfgBuilder]: Removed 5 assume(true) statements. [2023-11-12 00:09:03,963 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:09:03 BoogieIcfgContainer [2023-11-12 00:09:03,963 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 00:09:03,967 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-12 00:09:03,967 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-12 00:09:03,971 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-12 00:09:03,971 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 12:08:54" (1/3) ... [2023-11-12 00:09:03,974 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@31570b20 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:09:03, skipping insertion in model container [2023-11-12 00:09:03,974 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:08:58" (2/3) ... [2023-11-12 00:09:03,975 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@31570b20 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:09:03, skipping insertion in model container [2023-11-12 00:09:03,976 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:09:03" (3/3) ... [2023-11-12 00:09:03,977 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_hash_string_harness_negated.i [2023-11-12 00:09:03,999 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-12 00:09:04,000 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-12 00:09:04,070 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-12 00:09:04,082 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;@27b1071f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-12 00:09:04,082 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-12 00:09:04,089 INFO L276 IsEmpty]: Start isEmpty. Operand has 88 states, 62 states have (on average 1.5) internal successors, (93), 62 states have internal predecessors, (93), 15 states have call successors, (15), 10 states have call predecessors, (15), 10 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2023-11-12 00:09:04,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2023-11-12 00:09:04,102 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:09:04,103 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 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 00:09:04,103 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 00:09:04,109 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:09:04,110 INFO L85 PathProgramCache]: Analyzing trace with hash -1181237062, now seen corresponding path program 1 times [2023-11-12 00:09:04,121 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:09:04,121 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2068824797] [2023-11-12 00:09:04,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:09:04,122 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:09:05,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:09:08,615 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-11-12 00:09:08,616 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:09:08,616 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2068824797] [2023-11-12 00:09:08,617 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2068824797] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-12 00:09:08,617 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [219265656] [2023-11-12 00:09:08,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:09:08,618 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 00:09:08,618 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4627f07-d895-44f6-ba56-3fd7e9034092/bin/utaipan-verify-NcY6lQBIFX/z3 [2023-11-12 00:09:08,622 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4627f07-d895-44f6-ba56-3fd7e9034092/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 00:09:08,623 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4627f07-d895-44f6-ba56-3fd7e9034092/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-12 00:09:15,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:09:15,102 INFO L262 TraceCheckSpWp]: Trace formula consists of 2116 conjuncts, 145 conjunts are in the unsatisfiable core [2023-11-12 00:09:15,121 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 00:09:15,595 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 76 treesize of output 63 [2023-11-12 00:09:15,605 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 00:09:15,608 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 63 treesize of output 110 [2023-11-12 00:09:15,670 WARN L207 Elim1Store]: Array PQE input equivalent to false [2023-11-12 00:09:27,408 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-12 00:09:27,409 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 249 treesize of output 225 [2023-11-12 00:09:27,544 INFO L322 Elim1Store]: treesize reduction 9, result has 10.0 percent of original size [2023-11-12 00:09:27,545 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 235 treesize of output 219 [2023-11-12 00:09:31,121 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 12 proven. 3 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-12 00:09:31,122 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-12 00:09:35,263 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [219265656] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-12 00:09:35,264 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2035702467] [2023-11-12 00:09:35,301 INFO L159 IcfgInterpreter]: Started Sifa with 52 locations of interest [2023-11-12 00:09:35,302 INFO L166 IcfgInterpreter]: Building call graph [2023-11-12 00:09:35,307 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-11-12 00:09:35,313 INFO L176 IcfgInterpreter]: Starting interpretation [2023-11-12 00:09:35,313 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs