./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_hash_iter_next_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_f1a4172c-b4b9-41c0-aba1-eb63066e6b79/bin/utaipan-verify-QoSU8krkJ5/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1a4172c-b4b9-41c0-aba1-eb63066e6b79/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_f1a4172c-b4b9-41c0-aba1-eb63066e6b79/bin/utaipan-verify-QoSU8krkJ5/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1a4172c-b4b9-41c0-aba1-eb63066e6b79/bin/utaipan-verify-QoSU8krkJ5/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_hash_iter_next_harness_negated.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1a4172c-b4b9-41c0-aba1-eb63066e6b79/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_f1a4172c-b4b9-41c0-aba1-eb63066e6b79/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 60c6b7f7f10f0b58422dda68af0c160071220e1df94b065f3ff541927c670dfd --- Real Ultimate output --- This is Ultimate 0.2.3-dev-527bcce [2023-11-21 19:04:09,905 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-21 19:04:10,019 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1a4172c-b4b9-41c0-aba1-eb63066e6b79/bin/utaipan-verify-QoSU8krkJ5/config/svcomp-Reach-64bit-Taipan_Default.epf [2023-11-21 19:04:10,031 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-21 19:04:10,032 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-21 19:04:10,078 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-21 19:04:10,079 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-21 19:04:10,079 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-21 19:04:10,080 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-21 19:04:10,085 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-21 19:04:10,086 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-21 19:04:10,087 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-21 19:04:10,088 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-21 19:04:10,090 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-21 19:04:10,090 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-21 19:04:10,091 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-21 19:04:10,091 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-21 19:04:10,092 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-21 19:04:10,092 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-21 19:04:10,093 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-21 19:04:10,093 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-21 19:04:10,094 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-21 19:04:10,095 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-21 19:04:10,095 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-21 19:04:10,096 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-21 19:04:10,096 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-21 19:04:10,097 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-21 19:04:10,097 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-21 19:04:10,098 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-21 19:04:10,098 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-21 19:04:10,099 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-21 19:04:10,100 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-21 19:04:10,100 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-21 19:04:10,100 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-21 19:04:10,101 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 19:04:10,101 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-21 19:04:10,101 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-21 19:04:10,102 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-21 19:04:10,102 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-21 19:04:10,102 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-21 19:04:10,102 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-21 19:04:10,103 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-21 19:04:10,103 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-21 19:04:10,103 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-21 19:04:10,104 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_f1a4172c-b4b9-41c0-aba1-eb63066e6b79/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1a4172c-b4b9-41c0-aba1-eb63066e6b79/bin/utaipan-verify-QoSU8krkJ5 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 60c6b7f7f10f0b58422dda68af0c160071220e1df94b065f3ff541927c670dfd [2023-11-21 19:04:10,422 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 19:04:10,456 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 19:04:10,458 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 19:04:10,460 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 19:04:10,460 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 19:04:10,462 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1a4172c-b4b9-41c0-aba1-eb63066e6b79/bin/utaipan-verify-QoSU8krkJ5/../../sv-benchmarks/c/aws-c-common/aws_hash_iter_next_harness_negated.i [2023-11-21 19:04:13,497 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 19:04:14,065 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 19:04:14,066 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1a4172c-b4b9-41c0-aba1-eb63066e6b79/sv-benchmarks/c/aws-c-common/aws_hash_iter_next_harness_negated.i [2023-11-21 19:04:14,123 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1a4172c-b4b9-41c0-aba1-eb63066e6b79/bin/utaipan-verify-QoSU8krkJ5/data/1fab0dd4e/3f65f9e1ec93453c99987218d8fd2ae1/FLAG5437d1441 [2023-11-21 19:04:14,148 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1a4172c-b4b9-41c0-aba1-eb63066e6b79/bin/utaipan-verify-QoSU8krkJ5/data/1fab0dd4e/3f65f9e1ec93453c99987218d8fd2ae1 [2023-11-21 19:04:14,153 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 19:04:14,155 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 19:04:14,159 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 19:04:14,159 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 19:04:14,165 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 19:04:14,166 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 07:04:14" (1/1) ... [2023-11-21 19:04:14,167 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@152c3a61 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:04:14, skipping insertion in model container [2023-11-21 19:04:14,167 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 07:04:14" (1/1) ... [2023-11-21 19:04:14,322 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 19:04:14,605 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_f1a4172c-b4b9-41c0-aba1-eb63066e6b79/sv-benchmarks/c/aws-c-common/aws_hash_iter_next_harness_negated.i[4492,4505] [2023-11-21 19:04:14,614 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_f1a4172c-b4b9-41c0-aba1-eb63066e6b79/sv-benchmarks/c/aws-c-common/aws_hash_iter_next_harness_negated.i[4552,4565] [2023-11-21 19:04:16,069 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 19:04:16,070 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 19:04:16,070 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 19:04:16,071 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 19:04:16,073 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 19:04:16,090 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 19:04:16,091 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 19:04:16,093 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 19:04:16,094 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 19:04:16,096 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 19:04:16,098 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 19:04:16,098 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 19:04:16,099 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 19:04:16,762 WARN L635 FunctionHandler]: implicit declaration of function __atomic_load_n [2023-11-21 19:04:16,763 WARN L635 FunctionHandler]: implicit declaration of function __atomic_store_n [2023-11-21 19:04:16,765 WARN L635 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2023-11-21 19:04:16,766 WARN L635 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2023-11-21 19:04:16,768 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2023-11-21 19:04:16,768 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2023-11-21 19:04:16,769 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2023-11-21 19:04:16,770 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2023-11-21 19:04:16,771 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2023-11-21 19:04:16,772 WARN L635 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2023-11-21 19:04:17,455 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 19:04:17,456 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 19:04:17,482 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 19:04:17,483 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 19:04:17,489 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 19:04:17,490 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 19:04:17,511 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 19:04:17,512 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 19:04:17,513 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 19:04:17,513 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 19:04:17,514 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 19:04:17,515 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 19:04:17,515 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 19:04:17,581 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 19:04:17,637 INFO L202 MainTranslator]: Completed pre-run [2023-11-21 19:04:17,661 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_f1a4172c-b4b9-41c0-aba1-eb63066e6b79/sv-benchmarks/c/aws-c-common/aws_hash_iter_next_harness_negated.i[4492,4505] [2023-11-21 19:04:17,663 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_f1a4172c-b4b9-41c0-aba1-eb63066e6b79/sv-benchmarks/c/aws-c-common/aws_hash_iter_next_harness_negated.i[4552,4565] [2023-11-21 19:04:17,714 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 19:04:17,715 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 19:04:17,717 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 19:04:17,718 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 19:04:17,718 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 19:04:17,729 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 19:04:17,730 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 19:04:17,732 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 19:04:17,732 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 19:04:17,734 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 19:04:17,734 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 19:04:17,735 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 19:04:17,736 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 19:04:17,776 WARN L635 FunctionHandler]: implicit declaration of function __atomic_load_n [2023-11-21 19:04:17,777 WARN L635 FunctionHandler]: implicit declaration of function __atomic_store_n [2023-11-21 19:04:17,862 WARN L635 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2023-11-21 19:04:17,862 WARN L635 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2023-11-21 19:04:17,863 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2023-11-21 19:04:17,864 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2023-11-21 19:04:17,864 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2023-11-21 19:04:17,865 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2023-11-21 19:04:17,865 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2023-11-21 19:04:17,866 WARN L635 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2023-11-21 19:04:17,929 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [7526-7537] [2023-11-21 19:04:18,021 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 19:04:18,022 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 19:04:18,030 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 19:04:18,031 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 19:04:18,034 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 19:04:18,034 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 19:04:18,043 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 19:04:18,044 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 19:04:18,045 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 19:04:18,045 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 19:04:18,046 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 19:04:18,046 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 19:04:18,047 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 19:04:18,070 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 19:04:18,466 WARN L675 CHandler]: The function __atomic_fetch_or is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 19:04:18,467 WARN L675 CHandler]: The function equals_fn is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 19:04:18,467 WARN L675 CHandler]: The function __atomic_fetch_sub is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 19:04:18,467 WARN L675 CHandler]: The function __atomic_exchange_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 19:04:18,467 WARN L675 CHandler]: The function __atomic_fetch_xor is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 19:04:18,468 WARN L675 CHandler]: The function htons is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 19:04:18,468 WARN L675 CHandler]: The function ntohl is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 19:04:18,468 WARN L675 CHandler]: The function __atomic_compare_exchange_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 19:04:18,468 WARN L675 CHandler]: The function __atomic_fetch_add is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 19:04:18,468 WARN L675 CHandler]: The function fprintf is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 19:04:18,468 WARN L675 CHandler]: The function htonl is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 19:04:18,469 WARN L675 CHandler]: The function __atomic_store_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 19:04:18,469 WARN L675 CHandler]: The function ntohs is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 19:04:18,469 WARN L675 CHandler]: The function __atomic_load_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 19:04:18,469 WARN L675 CHandler]: The function __atomic_thread_fence is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 19:04:18,469 WARN L675 CHandler]: The function callback is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 19:04:18,470 WARN L675 CHandler]: The function __atomic_fetch_and is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 19:04:18,470 WARN L675 CHandler]: The function aws_array_list_ensure_capacity is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 19:04:18,478 INFO L206 MainTranslator]: Completed translation [2023-11-21 19:04:18,480 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:04:18 WrapperNode [2023-11-21 19:04:18,480 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-21 19:04:18,482 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-21 19:04:18,482 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-21 19:04:18,483 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-21 19:04:18,491 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:04:18" (1/1) ... [2023-11-21 19:04:18,652 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:04:18" (1/1) ... [2023-11-21 19:04:18,762 INFO L138 Inliner]: procedures = 772, calls = 2453, calls flagged for inlining = 67, calls inlined = 11, statements flattened = 643 [2023-11-21 19:04:18,764 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-21 19:04:18,765 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-21 19:04:18,765 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-21 19:04:18,765 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-21 19:04:18,775 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:04:18" (1/1) ... [2023-11-21 19:04:18,775 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:04:18" (1/1) ... [2023-11-21 19:04:18,791 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:04:18" (1/1) ... [2023-11-21 19:04:18,792 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:04:18" (1/1) ... [2023-11-21 19:04:18,838 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:04:18" (1/1) ... [2023-11-21 19:04:18,844 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:04:18" (1/1) ... [2023-11-21 19:04:18,854 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:04:18" (1/1) ... [2023-11-21 19:04:18,860 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:04:18" (1/1) ... [2023-11-21 19:04:18,874 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-21 19:04:18,875 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-21 19:04:18,875 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-21 19:04:18,875 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-21 19:04:18,876 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:04:18" (1/1) ... [2023-11-21 19:04:18,885 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 19:04:18,904 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1a4172c-b4b9-41c0-aba1-eb63066e6b79/bin/utaipan-verify-QoSU8krkJ5/z3 [2023-11-21 19:04:18,916 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1a4172c-b4b9-41c0-aba1-eb63066e6b79/bin/utaipan-verify-QoSU8krkJ5/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-21 19:04:18,955 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1a4172c-b4b9-41c0-aba1-eb63066e6b79/bin/utaipan-verify-QoSU8krkJ5/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-21 19:04:18,967 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2023-11-21 19:04:18,968 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-21 19:04:18,968 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2023-11-21 19:04:18,968 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2023-11-21 19:04:18,968 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-21 19:04:18,969 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-21 19:04:18,969 INFO L130 BoogieDeclarations]: Found specification of procedure hash_table_state_is_valid [2023-11-21 19:04:18,969 INFO L138 BoogieDeclarations]: Found implementation of procedure hash_table_state_is_valid [2023-11-21 19:04:18,969 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-21 19:04:18,969 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-21 19:04:18,969 INFO L130 BoogieDeclarations]: Found specification of procedure aws_hash_iter_next [2023-11-21 19:04:18,970 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_hash_iter_next [2023-11-21 19:04:18,970 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-21 19:04:18,970 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-21 19:04:18,970 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-21 19:04:18,971 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2023-11-21 19:04:18,972 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2023-11-21 19:04:18,972 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2023-11-21 19:04:18,972 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2023-11-21 19:04:18,973 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-21 19:04:18,973 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_plus [2023-11-21 19:04:18,973 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_plus [2023-11-21 19:04:18,973 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-21 19:04:18,973 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2023-11-21 19:04:18,973 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2023-11-21 19:04:18,974 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-21 19:04:18,974 INFO L130 BoogieDeclarations]: Found specification of procedure aws_is_power_of_two [2023-11-21 19:04:18,974 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_is_power_of_two [2023-11-21 19:04:18,974 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-21 19:04:18,974 INFO L130 BoogieDeclarations]: Found specification of procedure hash_table_state_required_bytes [2023-11-21 19:04:18,975 INFO L138 BoogieDeclarations]: Found implementation of procedure hash_table_state_required_bytes [2023-11-21 19:04:18,975 INFO L130 BoogieDeclarations]: Found specification of procedure s_get_next_element [2023-11-21 19:04:18,975 INFO L138 BoogieDeclarations]: Found implementation of procedure s_get_next_element [2023-11-21 19:04:18,975 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-21 19:04:18,975 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-21 19:04:18,976 INFO L130 BoogieDeclarations]: Found specification of procedure aws_hash_iter_is_valid [2023-11-21 19:04:18,976 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_hash_iter_is_valid [2023-11-21 19:04:18,976 INFO L130 BoogieDeclarations]: Found specification of procedure aws_hash_table_is_valid [2023-11-21 19:04:18,976 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_hash_table_is_valid [2023-11-21 19:04:18,977 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-21 19:04:18,977 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2023-11-21 19:04:18,977 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2023-11-21 19:04:18,977 INFO L130 BoogieDeclarations]: Found specification of procedure aws_add_size_checked [2023-11-21 19:04:18,978 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_add_size_checked [2023-11-21 19:04:18,978 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-21 19:04:19,473 INFO L240 CfgBuilder]: Building ICFG [2023-11-21 19:04:19,476 INFO L266 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-21 19:04:20,657 INFO L281 CfgBuilder]: Performing block encoding [2023-11-21 19:04:20,939 INFO L303 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-21 19:04:20,939 INFO L308 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-21 19:04:20,941 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 07:04:20 BoogieIcfgContainer [2023-11-21 19:04:20,941 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-21 19:04:20,944 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-21 19:04:20,944 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-21 19:04:20,947 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-21 19:04:20,948 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 07:04:14" (1/3) ... [2023-11-21 19:04:20,949 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12ff6fa4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 07:04:20, skipping insertion in model container [2023-11-21 19:04:20,949 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:04:18" (2/3) ... [2023-11-21 19:04:20,949 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12ff6fa4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 07:04:20, skipping insertion in model container [2023-11-21 19:04:20,949 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 07:04:20" (3/3) ... [2023-11-21 19:04:20,951 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_hash_iter_next_harness_negated.i [2023-11-21 19:04:20,970 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-21 19:04:20,970 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-21 19:04:21,023 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-21 19:04:21,030 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;@42925150, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-21 19:04:21,030 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-21 19:04:21,035 INFO L276 IsEmpty]: Start isEmpty. Operand has 129 states, 68 states have (on average 1.1764705882352942) internal successors, (80), 69 states have internal predecessors, (80), 43 states have call successors, (43), 16 states have call predecessors, (43), 16 states have return successors, (43), 43 states have call predecessors, (43), 43 states have call successors, (43) [2023-11-21 19:04:21,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2023-11-21 19:04:21,051 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 19:04:21,051 INFO L195 NwaCegarLoop]: trace histogram [10, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 19:04:21,052 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-21 19:04:21,057 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 19:04:21,057 INFO L85 PathProgramCache]: Analyzing trace with hash 7096117, now seen corresponding path program 1 times [2023-11-21 19:04:21,066 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-21 19:04:21,067 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [634907301] [2023-11-21 19:04:21,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 19:04:21,068 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 19:04:21,516 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-21 19:04:21,516 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [524648142] [2023-11-21 19:04:21,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 19:04:21,517 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 19:04:21,517 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1a4172c-b4b9-41c0-aba1-eb63066e6b79/bin/utaipan-verify-QoSU8krkJ5/z3 [2023-11-21 19:04:21,519 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1a4172c-b4b9-41c0-aba1-eb63066e6b79/bin/utaipan-verify-QoSU8krkJ5/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-21 19:04:21,548 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1a4172c-b4b9-41c0-aba1-eb63066e6b79/bin/utaipan-verify-QoSU8krkJ5/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-21 19:04:22,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 19:04:22,357 INFO L262 TraceCheckSpWp]: Trace formula consists of 2528 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-21 19:04:22,376 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 19:04:22,591 INFO L134 CoverageAnalysis]: Checked inductivity of 119 backedges. 75 proven. 0 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2023-11-21 19:04:22,591 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-21 19:04:22,592 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-21 19:04:22,592 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [634907301] [2023-11-21 19:04:22,592 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-21 19:04:22,592 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [524648142] [2023-11-21 19:04:22,593 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [524648142] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 19:04:22,593 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 19:04:22,593 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-21 19:04:22,595 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [813348959] [2023-11-21 19:04:22,596 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 19:04:22,600 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-21 19:04:22,601 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-21 19:04:22,633 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-21 19:04:22,634 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-21 19:04:22,636 INFO L87 Difference]: Start difference. First operand has 129 states, 68 states have (on average 1.1764705882352942) internal successors, (80), 69 states have internal predecessors, (80), 43 states have call successors, (43), 16 states have call predecessors, (43), 16 states have return successors, (43), 43 states have call predecessors, (43), 43 states have call successors, (43) Second operand has 6 states, 5 states have (on average 11.0) internal successors, (55), 5 states have internal predecessors, (55), 3 states have call successors, (27), 3 states have call predecessors, (27), 3 states have return successors, (24), 2 states have call predecessors, (24), 3 states have call successors, (24) [2023-11-21 19:04:23,312 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 19:04:23,313 INFO L93 Difference]: Finished difference Result 237 states and 316 transitions. [2023-11-21 19:04:23,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-21 19:04:23,317 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 11.0) internal successors, (55), 5 states have internal predecessors, (55), 3 states have call successors, (27), 3 states have call predecessors, (27), 3 states have return successors, (24), 2 states have call predecessors, (24), 3 states have call successors, (24) Word has length 117 [2023-11-21 19:04:23,318 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 19:04:23,331 INFO L225 Difference]: With dead ends: 237 [2023-11-21 19:04:23,331 INFO L226 Difference]: Without dead ends: 129 [2023-11-21 19:04:23,337 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 119 GetRequests, 112 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2023-11-21 19:04:23,345 INFO L413 NwaCegarLoop]: 117 mSDtfsCounter, 119 mSDsluCounter, 331 mSDsCounter, 0 mSdLazyCounter, 178 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 125 SdHoareTripleChecker+Valid, 448 SdHoareTripleChecker+Invalid, 209 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 178 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-21 19:04:23,346 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [125 Valid, 448 Invalid, 209 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 178 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-21 19:04:23,365 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129 states. [2023-11-21 19:04:23,407 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129 to 129. [2023-11-21 19:04:23,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 129 states, 68 states have (on average 1.161764705882353) internal successors, (79), 70 states have internal predecessors, (79), 43 states have call successors, (43), 16 states have call predecessors, (43), 17 states have return successors, (45), 42 states have call predecessors, (45), 42 states have call successors, (45) [2023-11-21 19:04:23,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 129 states and 167 transitions. [2023-11-21 19:04:23,420 INFO L78 Accepts]: Start accepts. Automaton has 129 states and 167 transitions. Word has length 117 [2023-11-21 19:04:23,421 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 19:04:23,421 INFO L495 AbstractCegarLoop]: Abstraction has 129 states and 167 transitions. [2023-11-21 19:04:23,422 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 11.0) internal successors, (55), 5 states have internal predecessors, (55), 3 states have call successors, (27), 3 states have call predecessors, (27), 3 states have return successors, (24), 2 states have call predecessors, (24), 3 states have call successors, (24) [2023-11-21 19:04:23,422 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 167 transitions. [2023-11-21 19:04:23,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2023-11-21 19:04:23,433 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 19:04:23,434 INFO L195 NwaCegarLoop]: trace histogram [10, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 19:04:23,451 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1a4172c-b4b9-41c0-aba1-eb63066e6b79/bin/utaipan-verify-QoSU8krkJ5/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-21 19:04:23,639 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1a4172c-b4b9-41c0-aba1-eb63066e6b79/bin/utaipan-verify-QoSU8krkJ5/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2023-11-21 19:04:23,640 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-21 19:04:23,640 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 19:04:23,641 INFO L85 PathProgramCache]: Analyzing trace with hash -393193183, now seen corresponding path program 1 times [2023-11-21 19:04:23,641 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-21 19:04:23,641 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [816932977] [2023-11-21 19:04:23,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 19:04:23,641 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 19:04:23,800 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-21 19:04:23,800 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1863708936] [2023-11-21 19:04:23,800 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 19:04:23,800 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 19:04:23,800 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1a4172c-b4b9-41c0-aba1-eb63066e6b79/bin/utaipan-verify-QoSU8krkJ5/z3 [2023-11-21 19:04:23,801 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1a4172c-b4b9-41c0-aba1-eb63066e6b79/bin/utaipan-verify-QoSU8krkJ5/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-21 19:04:23,819 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1a4172c-b4b9-41c0-aba1-eb63066e6b79/bin/utaipan-verify-QoSU8krkJ5/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-21 19:04:24,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 19:04:24,547 INFO L262 TraceCheckSpWp]: Trace formula consists of 2533 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-21 19:04:24,559 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 19:04:24,734 INFO L134 CoverageAnalysis]: Checked inductivity of 119 backedges. 57 proven. 33 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2023-11-21 19:04:24,734 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-21 19:04:25,016 INFO L134 CoverageAnalysis]: Checked inductivity of 119 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 113 trivial. 0 not checked. [2023-11-21 19:04:25,016 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-21 19:04:25,017 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [816932977] [2023-11-21 19:04:25,017 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-21 19:04:25,017 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1863708936] [2023-11-21 19:04:25,017 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1863708936] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-21 19:04:25,017 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [763630566] [2023-11-21 19:04:25,048 INFO L159 IcfgInterpreter]: Started Sifa with 76 locations of interest [2023-11-21 19:04:25,048 INFO L166 IcfgInterpreter]: Building call graph [2023-11-21 19:04:25,053 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-11-21 19:04:25,059 INFO L176 IcfgInterpreter]: Starting interpretation [2023-11-21 19:04:25,059 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs