./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_hash_iter_next_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 30e01a73 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_6fe12869-d4a9-4272-82a9-f9b0cfaa1cd7/bin/utaipan-verify-mE87zJ7Ire/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fe12869-d4a9-4272-82a9-f9b0cfaa1cd7/bin/utaipan-verify-mE87zJ7Ire/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fe12869-d4a9-4272-82a9-f9b0cfaa1cd7/bin/utaipan-verify-mE87zJ7Ire/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fe12869-d4a9-4272-82a9-f9b0cfaa1cd7/bin/utaipan-verify-mE87zJ7Ire/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_hash_iter_next_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fe12869-d4a9-4272-82a9-f9b0cfaa1cd7/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fe12869-d4a9-4272-82a9-f9b0cfaa1cd7/bin/utaipan-verify-mE87zJ7Ire --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 13ab51b5126028da19fd5973a25f590452a4763e1cc4e396aeee438668151298 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 21:14:17,657 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 21:14:17,761 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fe12869-d4a9-4272-82a9-f9b0cfaa1cd7/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-64bit-Taipan_Default.epf [2023-11-23 21:14:17,769 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 21:14:17,769 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 21:14:17,808 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 21:14:17,808 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 21:14:17,809 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 21:14:17,810 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 21:14:17,815 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 21:14:17,816 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-23 21:14:17,817 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-23 21:14:17,817 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-23 21:14:17,819 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-23 21:14:17,820 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-23 21:14:17,820 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-23 21:14:17,821 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-23 21:14:17,821 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-23 21:14:17,821 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-23 21:14:17,822 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-23 21:14:17,822 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-23 21:14:17,823 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-23 21:14:17,824 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 21:14:17,825 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 21:14:17,825 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 21:14:17,826 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 21:14:17,826 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 21:14:17,827 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 21:14:17,827 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 21:14:17,828 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 21:14:17,829 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 21:14:17,829 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 21:14:17,830 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 21:14:17,830 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 21:14:17,830 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:14:17,831 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 21:14:17,831 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 21:14:17,831 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 21:14:17,832 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-23 21:14:17,832 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 21:14:17,832 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 21:14:17,833 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 21:14:17,833 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-23 21:14:17,833 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 21:14:17,834 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_6fe12869-d4a9-4272-82a9-f9b0cfaa1cd7/bin/utaipan-verify-mE87zJ7Ire/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fe12869-d4a9-4272-82a9-f9b0cfaa1cd7/bin/utaipan-verify-mE87zJ7Ire Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 13ab51b5126028da19fd5973a25f590452a4763e1cc4e396aeee438668151298 [2023-11-23 21:14:18,147 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 21:14:18,182 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 21:14:18,184 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 21:14:18,186 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 21:14:18,186 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 21:14:18,188 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fe12869-d4a9-4272-82a9-f9b0cfaa1cd7/bin/utaipan-verify-mE87zJ7Ire/../../sv-benchmarks/c/aws-c-common/aws_hash_iter_next_harness.i [2023-11-23 21:14:21,392 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 21:14:22,095 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 21:14:22,096 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fe12869-d4a9-4272-82a9-f9b0cfaa1cd7/sv-benchmarks/c/aws-c-common/aws_hash_iter_next_harness.i [2023-11-23 21:14:22,145 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fe12869-d4a9-4272-82a9-f9b0cfaa1cd7/bin/utaipan-verify-mE87zJ7Ire/data/6ce891c20/19b223cddc0d48fa9f73ee0d87c1361a/FLAG91169d678 [2023-11-23 21:14:22,165 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fe12869-d4a9-4272-82a9-f9b0cfaa1cd7/bin/utaipan-verify-mE87zJ7Ire/data/6ce891c20/19b223cddc0d48fa9f73ee0d87c1361a [2023-11-23 21:14:22,174 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 21:14:22,175 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 21:14:22,182 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 21:14:22,183 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 21:14:22,189 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 21:14:22,190 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:14:22" (1/1) ... [2023-11-23 21:14:22,191 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2a206d23 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:14:22, skipping insertion in model container [2023-11-23 21:14:22,192 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:14:22" (1/1) ... [2023-11-23 21:14:22,406 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 21:14:22,831 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_6fe12869-d4a9-4272-82a9-f9b0cfaa1cd7/sv-benchmarks/c/aws-c-common/aws_hash_iter_next_harness.i[4492,4505] [2023-11-23 21:14:22,843 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_6fe12869-d4a9-4272-82a9-f9b0cfaa1cd7/sv-benchmarks/c/aws-c-common/aws_hash_iter_next_harness.i[4552,4565] [2023-11-23 21:14:24,530 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 21:14:24,531 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 21:14:24,532 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 21:14:24,533 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 21:14:24,535 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 21:14:24,552 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 21:14:24,553 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 21:14:24,555 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 21:14:24,556 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 21:14:24,559 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 21:14:24,560 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 21:14:24,561 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 21:14:24,562 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 21:14:25,312 WARN L635 FunctionHandler]: implicit declaration of function __atomic_load_n [2023-11-23 21:14:25,318 WARN L635 FunctionHandler]: implicit declaration of function __atomic_store_n [2023-11-23 21:14:25,320 WARN L635 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2023-11-23 21:14:25,322 WARN L635 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2023-11-23 21:14:25,329 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2023-11-23 21:14:25,330 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2023-11-23 21:14:25,331 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2023-11-23 21:14:25,331 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2023-11-23 21:14:25,332 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2023-11-23 21:14:25,333 WARN L635 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2023-11-23 21:14:26,134 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 21:14:26,136 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 21:14:26,177 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 21:14:26,183 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 21:14:26,193 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 21:14:26,193 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 21:14:26,215 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 21:14:26,216 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 21:14:26,217 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 21:14:26,217 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 21:14:26,218 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 21:14:26,219 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 21:14:26,221 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 21:14:26,284 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:14:26,336 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 21:14:26,353 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_6fe12869-d4a9-4272-82a9-f9b0cfaa1cd7/sv-benchmarks/c/aws-c-common/aws_hash_iter_next_harness.i[4492,4505] [2023-11-23 21:14:26,353 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_6fe12869-d4a9-4272-82a9-f9b0cfaa1cd7/sv-benchmarks/c/aws-c-common/aws_hash_iter_next_harness.i[4552,4565] [2023-11-23 21:14:26,393 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 21:14:26,394 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 21:14:26,395 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 21:14:26,395 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 21:14:26,396 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 21:14:26,403 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 21:14:26,403 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 21:14:26,405 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 21:14:26,405 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 21:14:26,407 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 21:14:26,407 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 21:14:26,408 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 21:14:26,408 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 21:14:26,445 WARN L635 FunctionHandler]: implicit declaration of function __atomic_load_n [2023-11-23 21:14:26,446 WARN L635 FunctionHandler]: implicit declaration of function __atomic_store_n [2023-11-23 21:14:26,447 WARN L635 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2023-11-23 21:14:26,448 WARN L635 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2023-11-23 21:14:26,449 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2023-11-23 21:14:26,450 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2023-11-23 21:14:26,450 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2023-11-23 21:14:26,451 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2023-11-23 21:14:26,452 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2023-11-23 21:14:26,453 WARN L635 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2023-11-23 21:14:26,492 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [7558-7569] [2023-11-23 21:14:26,644 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 21:14:26,645 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 21:14:26,655 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 21:14:26,657 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 21:14:26,661 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 21:14:26,662 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 21:14:26,683 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 21:14:26,684 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 21:14:26,685 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 21:14:26,685 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 21:14:26,687 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 21:14:26,687 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 21:14:26,688 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 21:14:26,745 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:14:27,189 WARN L675 CHandler]: The function __atomic_fetch_or is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 21:14:27,189 WARN L675 CHandler]: The function equals_fn is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 21:14:27,190 WARN L675 CHandler]: The function __atomic_fetch_sub is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 21:14:27,190 WARN L675 CHandler]: The function __atomic_exchange_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 21:14:27,190 WARN L675 CHandler]: The function __atomic_fetch_xor is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 21:14:27,190 WARN L675 CHandler]: The function htons is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 21:14:27,191 WARN L675 CHandler]: The function ntohl is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 21:14:27,192 WARN L675 CHandler]: The function __atomic_compare_exchange_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 21:14:27,193 WARN L675 CHandler]: The function __atomic_fetch_add is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 21:14:27,193 WARN L675 CHandler]: The function fprintf is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 21:14:27,193 WARN L675 CHandler]: The function htonl is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 21:14:27,199 WARN L675 CHandler]: The function __atomic_store_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 21:14:27,199 WARN L675 CHandler]: The function ntohs is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 21:14:27,199 WARN L675 CHandler]: The function __atomic_load_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 21:14:27,199 WARN L675 CHandler]: The function __atomic_thread_fence is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 21:14:27,199 WARN L675 CHandler]: The function callback is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 21:14:27,199 WARN L675 CHandler]: The function __atomic_fetch_and is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 21:14:27,200 WARN L675 CHandler]: The function aws_array_list_ensure_capacity is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 21:14:27,207 INFO L206 MainTranslator]: Completed translation [2023-11-23 21:14:27,207 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:14:27 WrapperNode [2023-11-23 21:14:27,208 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 21:14:27,209 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 21:14:27,209 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 21:14:27,209 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 21:14:27,217 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:14:27" (1/1) ... [2023-11-23 21:14:27,379 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:14:27" (1/1) ... [2023-11-23 21:14:27,458 INFO L138 Inliner]: procedures = 772, calls = 2453, calls flagged for inlining = 67, calls inlined = 11, statements flattened = 643 [2023-11-23 21:14:27,459 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 21:14:27,460 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 21:14:27,460 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 21:14:27,460 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 21:14:27,470 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:14:27" (1/1) ... [2023-11-23 21:14:27,470 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:14:27" (1/1) ... [2023-11-23 21:14:27,479 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:14:27" (1/1) ... [2023-11-23 21:14:27,480 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:14:27" (1/1) ... [2023-11-23 21:14:27,519 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:14:27" (1/1) ... [2023-11-23 21:14:27,524 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:14:27" (1/1) ... [2023-11-23 21:14:27,533 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:14:27" (1/1) ... [2023-11-23 21:14:27,554 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:14:27" (1/1) ... [2023-11-23 21:14:27,568 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 21:14:27,581 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 21:14:27,582 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 21:14:27,582 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 21:14:27,583 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:14:27" (1/1) ... [2023-11-23 21:14:27,596 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:14:27,614 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fe12869-d4a9-4272-82a9-f9b0cfaa1cd7/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 21:14:27,628 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fe12869-d4a9-4272-82a9-f9b0cfaa1cd7/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 21:14:27,656 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fe12869-d4a9-4272-82a9-f9b0cfaa1cd7/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 21:14:27,675 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2023-11-23 21:14:27,675 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-23 21:14:27,675 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2023-11-23 21:14:27,675 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2023-11-23 21:14:27,676 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-23 21:14:27,676 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-23 21:14:27,676 INFO L130 BoogieDeclarations]: Found specification of procedure hash_table_state_is_valid [2023-11-23 21:14:27,676 INFO L138 BoogieDeclarations]: Found implementation of procedure hash_table_state_is_valid [2023-11-23 21:14:27,676 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-23 21:14:27,676 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 21:14:27,676 INFO L130 BoogieDeclarations]: Found specification of procedure aws_hash_iter_next [2023-11-23 21:14:27,677 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_hash_iter_next [2023-11-23 21:14:27,677 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-23 21:14:27,677 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 21:14:27,677 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 21:14:27,678 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2023-11-23 21:14:27,679 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2023-11-23 21:14:27,679 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2023-11-23 21:14:27,679 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2023-11-23 21:14:27,679 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-23 21:14:27,680 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_plus [2023-11-23 21:14:27,680 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_plus [2023-11-23 21:14:27,680 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-23 21:14:27,680 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2023-11-23 21:14:27,717 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2023-11-23 21:14:27,717 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-23 21:14:27,717 INFO L130 BoogieDeclarations]: Found specification of procedure aws_is_power_of_two [2023-11-23 21:14:27,717 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_is_power_of_two [2023-11-23 21:14:27,717 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-23 21:14:27,718 INFO L130 BoogieDeclarations]: Found specification of procedure hash_table_state_required_bytes [2023-11-23 21:14:27,718 INFO L138 BoogieDeclarations]: Found implementation of procedure hash_table_state_required_bytes [2023-11-23 21:14:27,718 INFO L130 BoogieDeclarations]: Found specification of procedure s_get_next_element [2023-11-23 21:14:27,719 INFO L138 BoogieDeclarations]: Found implementation of procedure s_get_next_element [2023-11-23 21:14:27,719 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-23 21:14:27,719 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-23 21:14:27,719 INFO L130 BoogieDeclarations]: Found specification of procedure aws_hash_iter_is_valid [2023-11-23 21:14:27,719 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_hash_iter_is_valid [2023-11-23 21:14:27,720 INFO L130 BoogieDeclarations]: Found specification of procedure aws_hash_table_is_valid [2023-11-23 21:14:27,720 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_hash_table_is_valid [2023-11-23 21:14:27,720 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-23 21:14:27,720 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2023-11-23 21:14:27,720 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2023-11-23 21:14:27,720 INFO L130 BoogieDeclarations]: Found specification of procedure aws_add_size_checked [2023-11-23 21:14:27,721 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_add_size_checked [2023-11-23 21:14:27,721 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-23 21:14:28,130 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 21:14:28,134 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 21:14:29,130 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 21:14:29,488 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 21:14:29,489 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-23 21:14:29,491 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:14:29 BoogieIcfgContainer [2023-11-23 21:14:29,491 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 21:14:29,494 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 21:14:29,494 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 21:14:29,498 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 21:14:29,498 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 09:14:22" (1/3) ... [2023-11-23 21:14:29,499 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4062bb62 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:14:29, skipping insertion in model container [2023-11-23 21:14:29,499 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:14:27" (2/3) ... [2023-11-23 21:14:29,500 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4062bb62 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:14:29, skipping insertion in model container [2023-11-23 21:14:29,500 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:14:29" (3/3) ... [2023-11-23 21:14:29,501 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_hash_iter_next_harness.i [2023-11-23 21:14:29,524 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 21:14:29,524 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-23 21:14:29,600 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 21:14:29,620 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;@27207edf, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 21:14:29,620 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-23 21:14:29,626 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) [2023-11-23 21:14:29,648 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2023-11-23 21:14:29,648 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:14:29,650 INFO L195 NwaCegarLoop]: trace histogram [10, 2, 2, 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] [2023-11-23 21:14:29,651 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:14:29,662 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:14:29,663 INFO L85 PathProgramCache]: Analyzing trace with hash 1376319052, now seen corresponding path program 1 times [2023-11-23 21:14:29,674 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:14:29,675 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [607186479] [2023-11-23 21:14:29,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:14:29,676 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:14:30,179 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 21:14:30,180 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [843487882] [2023-11-23 21:14:30,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:14:30,181 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 21:14:30,181 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fe12869-d4a9-4272-82a9-f9b0cfaa1cd7/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 21:14:30,184 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fe12869-d4a9-4272-82a9-f9b0cfaa1cd7/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 21:14:30,194 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fe12869-d4a9-4272-82a9-f9b0cfaa1cd7/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-23 21:14:30,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:14:30,896 INFO L262 TraceCheckSpWp]: Trace formula consists of 2522 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-23 21:14:30,911 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:14:31,107 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 71 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2023-11-23 21:14:31,107 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 21:14:31,111 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:14:31,111 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [607186479] [2023-11-23 21:14:31,111 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 21:14:31,116 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [843487882] [2023-11-23 21:14:31,117 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [843487882] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:14:31,117 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:14:31,117 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-23 21:14:31,120 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [63046130] [2023-11-23 21:14:31,121 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:14:31,126 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-23 21:14:31,127 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:14:31,166 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-23 21:14:31,167 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-23 21:14:31,171 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 11.6) internal successors, (58), 5 states have internal predecessors, (58), 3 states have call successors, (26), 3 states have call predecessors, (26), 3 states have return successors, (24), 2 states have call predecessors, (24), 3 states have call successors, (24) [2023-11-23 21:14:31,872 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:14:31,872 INFO L93 Difference]: Finished difference Result 237 states and 316 transitions. [2023-11-23 21:14:31,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-23 21:14:31,875 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 3 states have call successors, (26), 3 states have call predecessors, (26), 3 states have return successors, (24), 2 states have call predecessors, (24), 3 states have call successors, (24) Word has length 116 [2023-11-23 21:14:31,876 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:14:31,887 INFO L225 Difference]: With dead ends: 237 [2023-11-23 21:14:31,887 INFO L226 Difference]: Without dead ends: 129 [2023-11-23 21:14:31,891 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 111 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2023-11-23 21:14:31,895 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 [2023-11-23 21:14:31,896 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] [2023-11-23 21:14:31,914 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129 states. [2023-11-23 21:14:31,950 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129 to 129. [2023-11-23 21:14:31,952 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) [2023-11-23 21:14:31,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 129 states and 167 transitions. [2023-11-23 21:14:31,956 INFO L78 Accepts]: Start accepts. Automaton has 129 states and 167 transitions. Word has length 116 [2023-11-23 21:14:31,957 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:14:31,958 INFO L495 AbstractCegarLoop]: Abstraction has 129 states and 167 transitions. [2023-11-23 21:14:31,958 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 3 states have call successors, (26), 3 states have call predecessors, (26), 3 states have return successors, (24), 2 states have call predecessors, (24), 3 states have call successors, (24) [2023-11-23 21:14:31,958 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 167 transitions. [2023-11-23 21:14:31,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2023-11-23 21:14:31,962 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:14:31,962 INFO L195 NwaCegarLoop]: trace histogram [10, 2, 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, 1, 1, 1] [2023-11-23 21:14:31,990 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fe12869-d4a9-4272-82a9-f9b0cfaa1cd7/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-11-23 21:14:32,184 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fe12869-d4a9-4272-82a9-f9b0cfaa1cd7/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2023-11-23 21:14:32,185 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:14:32,186 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:14:32,186 INFO L85 PathProgramCache]: Analyzing trace with hash -1872488106, now seen corresponding path program 1 times [2023-11-23 21:14:32,186 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:14:32,186 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1884479756] [2023-11-23 21:14:32,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:14:32,187 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:14:32,352 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 21:14:32,352 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [591754318] [2023-11-23 21:14:32,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:14:32,352 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 21:14:32,353 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fe12869-d4a9-4272-82a9-f9b0cfaa1cd7/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 21:14:32,354 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fe12869-d4a9-4272-82a9-f9b0cfaa1cd7/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 21:14:32,386 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fe12869-d4a9-4272-82a9-f9b0cfaa1cd7/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-23 21:14:33,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:14:33,154 INFO L262 TraceCheckSpWp]: Trace formula consists of 2527 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-23 21:14:33,194 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:14:33,459 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 49 proven. 33 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2023-11-23 21:14:33,460 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 21:14:33,814 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 108 trivial. 0 not checked. [2023-11-23 21:14:33,814 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:14:33,815 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1884479756] [2023-11-23 21:14:33,815 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 21:14:33,815 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [591754318] [2023-11-23 21:14:33,816 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [591754318] provided 1 perfect and 1 imperfect interpolant sequences [2023-11-23 21:14:33,816 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-23 21:14:33,816 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [8] total 13 [2023-11-23 21:14:33,816 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1783116092] [2023-11-23 21:14:33,817 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:14:33,820 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-23 21:14:33,820 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:14:33,822 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-23 21:14:33,823 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2023-11-23 21:14:33,823 INFO L87 Difference]: Start difference. First operand 129 states and 167 transitions. Second operand has 8 states, 7 states have (on average 6.714285714285714) internal successors, (47), 7 states have internal predecessors, (47), 5 states have call successors, (24), 3 states have call predecessors, (24), 2 states have return successors, (22), 4 states have call predecessors, (22), 5 states have call successors, (22) [2023-11-23 21:14:34,947 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:14:34,947 INFO L93 Difference]: Finished difference Result 194 states and 251 transitions. [2023-11-23 21:14:34,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-23 21:14:34,948 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 6.714285714285714) internal successors, (47), 7 states have internal predecessors, (47), 5 states have call successors, (24), 3 states have call predecessors, (24), 2 states have return successors, (22), 4 states have call predecessors, (22), 5 states have call successors, (22) Word has length 117 [2023-11-23 21:14:34,949 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:14:34,952 INFO L225 Difference]: With dead ends: 194 [2023-11-23 21:14:34,953 INFO L226 Difference]: Without dead ends: 129 [2023-11-23 21:14:34,955 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 239 GetRequests, 222 SyntacticMatches, 1 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=53, Invalid=253, Unknown=0, NotChecked=0, Total=306 [2023-11-23 21:14:34,957 INFO L413 NwaCegarLoop]: 111 mSDtfsCounter, 143 mSDsluCounter, 532 mSDsCounter, 0 mSdLazyCounter, 279 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 145 SdHoareTripleChecker+Valid, 643 SdHoareTripleChecker+Invalid, 326 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 279 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-11-23 21:14:34,957 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [145 Valid, 643 Invalid, 326 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 279 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-11-23 21:14:34,959 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129 states. [2023-11-23 21:14:34,986 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129 to 129. [2023-11-23 21:14:34,987 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, (43), 42 states have call predecessors, (43), 42 states have call successors, (43) [2023-11-23 21:14:34,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 129 states and 165 transitions. [2023-11-23 21:14:34,990 INFO L78 Accepts]: Start accepts. Automaton has 129 states and 165 transitions. Word has length 117 [2023-11-23 21:14:34,991 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:14:34,991 INFO L495 AbstractCegarLoop]: Abstraction has 129 states and 165 transitions. [2023-11-23 21:14:34,992 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 6.714285714285714) internal successors, (47), 7 states have internal predecessors, (47), 5 states have call successors, (24), 3 states have call predecessors, (24), 2 states have return successors, (22), 4 states have call predecessors, (22), 5 states have call successors, (22) [2023-11-23 21:14:34,992 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 165 transitions. [2023-11-23 21:14:34,995 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2023-11-23 21:14:34,995 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:14:34,996 INFO L195 NwaCegarLoop]: trace histogram [10, 2, 2, 2, 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] [2023-11-23 21:14:35,035 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fe12869-d4a9-4272-82a9-f9b0cfaa1cd7/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-23 21:14:35,221 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fe12869-d4a9-4272-82a9-f9b0cfaa1cd7/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 21:14:35,221 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:14:35,222 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:14:35,222 INFO L85 PathProgramCache]: Analyzing trace with hash 665445878, now seen corresponding path program 1 times [2023-11-23 21:14:35,222 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:14:35,223 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [583296271] [2023-11-23 21:14:35,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:14:35,223 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:14:35,393 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 21:14:35,393 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1853543963] [2023-11-23 21:14:35,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:14:35,394 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 21:14:35,394 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fe12869-d4a9-4272-82a9-f9b0cfaa1cd7/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 21:14:35,395 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fe12869-d4a9-4272-82a9-f9b0cfaa1cd7/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 21:14:35,409 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fe12869-d4a9-4272-82a9-f9b0cfaa1cd7/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-23 21:14:36,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:14:36,215 INFO L262 TraceCheckSpWp]: Trace formula consists of 2532 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-23 21:14:36,223 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:14:36,268 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 63 proven. 0 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2023-11-23 21:14:36,268 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 21:14:36,269 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:14:36,269 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [583296271] [2023-11-23 21:14:36,269 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 21:14:36,270 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1853543963] [2023-11-23 21:14:36,270 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1853543963] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:14:36,270 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:14:36,270 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-23 21:14:36,271 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1989144910] [2023-11-23 21:14:36,271 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:14:36,272 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-23 21:14:36,273 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:14:36,274 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-23 21:14:36,274 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-23 21:14:36,275 INFO L87 Difference]: Start difference. First operand 129 states and 165 transitions. Second operand has 5 states, 4 states have (on average 14.25) internal successors, (57), 5 states have internal predecessors, (57), 2 states have call successors, (24), 2 states have call predecessors, (24), 3 states have return successors, (23), 3 states have call predecessors, (23), 2 states have call successors, (23) [2023-11-23 21:14:36,767 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:14:36,767 INFO L93 Difference]: Finished difference Result 252 states and 323 transitions. [2023-11-23 21:14:36,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-23 21:14:36,768 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 14.25) internal successors, (57), 5 states have internal predecessors, (57), 2 states have call successors, (24), 2 states have call predecessors, (24), 3 states have return successors, (23), 3 states have call predecessors, (23), 2 states have call successors, (23) Word has length 118 [2023-11-23 21:14:36,769 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:14:36,771 INFO L225 Difference]: With dead ends: 252 [2023-11-23 21:14:36,771 INFO L226 Difference]: Without dead ends: 133 [2023-11-23 21:14:36,773 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 114 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-11-23 21:14:36,774 INFO L413 NwaCegarLoop]: 138 mSDtfsCounter, 1 mSDsluCounter, 410 mSDsCounter, 0 mSdLazyCounter, 103 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 548 SdHoareTripleChecker+Invalid, 103 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 103 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-23 21:14:36,775 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 548 Invalid, 103 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 103 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-23 21:14:36,776 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133 states. [2023-11-23 21:14:36,795 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133 to 133. [2023-11-23 21:14:36,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 133 states, 71 states have (on average 1.1549295774647887) internal successors, (82), 73 states have internal predecessors, (82), 43 states have call successors, (43), 16 states have call predecessors, (43), 18 states have return successors, (44), 43 states have call predecessors, (44), 42 states have call successors, (44) [2023-11-23 21:14:36,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 133 states and 169 transitions. [2023-11-23 21:14:36,798 INFO L78 Accepts]: Start accepts. Automaton has 133 states and 169 transitions. Word has length 118 [2023-11-23 21:14:36,798 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:14:36,798 INFO L495 AbstractCegarLoop]: Abstraction has 133 states and 169 transitions. [2023-11-23 21:14:36,799 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 14.25) internal successors, (57), 5 states have internal predecessors, (57), 2 states have call successors, (24), 2 states have call predecessors, (24), 3 states have return successors, (23), 3 states have call predecessors, (23), 2 states have call successors, (23) [2023-11-23 21:14:36,799 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 169 transitions. [2023-11-23 21:14:36,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2023-11-23 21:14:36,801 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:14:36,801 INFO L195 NwaCegarLoop]: trace histogram [10, 2, 2, 2, 2, 2, 2, 2, 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] [2023-11-23 21:14:36,833 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fe12869-d4a9-4272-82a9-f9b0cfaa1cd7/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-11-23 21:14:37,028 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fe12869-d4a9-4272-82a9-f9b0cfaa1cd7/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 21:14:37,029 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:14:37,029 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:14:37,029 INFO L85 PathProgramCache]: Analyzing trace with hash 435598912, now seen corresponding path program 1 times [2023-11-23 21:14:37,029 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:14:37,030 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1396503179] [2023-11-23 21:14:37,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:14:37,030 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:14:37,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:14:38,928 INFO L134 CoverageAnalysis]: Checked inductivity of 116 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2023-11-23 21:14:38,928 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:14:38,928 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1396503179] [2023-11-23 21:14:38,928 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1396503179] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 21:14:38,929 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1275941534] [2023-11-23 21:14:38,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:14:38,929 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 21:14:38,929 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fe12869-d4a9-4272-82a9-f9b0cfaa1cd7/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 21:14:38,930 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fe12869-d4a9-4272-82a9-f9b0cfaa1cd7/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 21:14:38,944 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fe12869-d4a9-4272-82a9-f9b0cfaa1cd7/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-23 21:14:39,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:14:39,613 INFO L262 TraceCheckSpWp]: Trace formula consists of 2530 conjuncts, 60 conjunts are in the unsatisfiable core [2023-11-23 21:14:39,628 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:14:39,997 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2023-11-23 21:14:42,056 WARN L876 $PredicateComparison]: unable to prove that (exists ((|v_ULTIMATE.start_aws_hash_iter_next_harness_~#map~0#1.base_BEFORE_CALL_8| Int) (|v_ULTIMATE.start_aws_hash_iter_next_harness_~#map~0#1.offset_BEFORE_CALL_8| Int)) (and (<= (+ (select (select |c_#memory_$Pointer$.base| |v_ULTIMATE.start_aws_hash_iter_next_harness_~#map~0#1.base_BEFORE_CALL_8|) |v_ULTIMATE.start_aws_hash_iter_next_harness_~#map~0#1.offset_BEFORE_CALL_8|) 2) |v_ULTIMATE.start_aws_hash_iter_next_harness_~#map~0#1.base_BEFORE_CALL_8|) (<= 2 |v_ULTIMATE.start_aws_hash_iter_next_harness_~#map~0#1.base_BEFORE_CALL_8|))) is different from true [2023-11-23 21:14:58,641 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2023-11-23 21:14:58,989 INFO L349 Elim1Store]: treesize reduction 40, result has 51.8 percent of original size [2023-11-23 21:14:58,989 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 32 treesize of output 51 [2023-11-23 21:15:08,063 INFO L134 CoverageAnalysis]: Checked inductivity of 116 backedges. 50 proven. 45 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2023-11-23 21:15:08,063 INFO L327 TraceCheckSpWp]: Computing backward predicates...