./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_hash_table_put_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_81bfcf3a-b0b4-44a8-974b-b8220f7a8842/bin/utaipan-verify-mE87zJ7Ire/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81bfcf3a-b0b4-44a8-974b-b8220f7a8842/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_81bfcf3a-b0b4-44a8-974b-b8220f7a8842/bin/utaipan-verify-mE87zJ7Ire/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81bfcf3a-b0b4-44a8-974b-b8220f7a8842/bin/utaipan-verify-mE87zJ7Ire/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_hash_table_put_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81bfcf3a-b0b4-44a8-974b-b8220f7a8842/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_81bfcf3a-b0b4-44a8-974b-b8220f7a8842/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 7e3410638a547f2efce35a13c7d23c64ee660b1c493ec273ce9d4043edc218c3 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 20:33:15,043 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 20:33:15,115 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81bfcf3a-b0b4-44a8-974b-b8220f7a8842/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-64bit-Taipan_Default.epf [2023-11-23 20:33:15,121 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 20:33:15,122 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 20:33:15,169 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 20:33:15,170 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 20:33:15,170 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 20:33:15,171 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 20:33:15,172 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 20:33:15,173 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-23 20:33:15,173 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-23 20:33:15,174 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-23 20:33:15,174 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-23 20:33:15,175 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-23 20:33:15,176 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-23 20:33:15,176 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-23 20:33:15,177 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-23 20:33:15,177 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-23 20:33:15,178 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-23 20:33:15,178 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-23 20:33:15,179 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-23 20:33:15,180 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 20:33:15,180 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 20:33:15,181 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 20:33:15,181 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 20:33:15,182 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 20:33:15,182 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 20:33:15,183 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 20:33:15,183 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 20:33:15,184 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 20:33:15,184 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 20:33:15,184 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 20:33:15,204 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 20:33:15,204 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 20:33:15,205 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 20:33:15,205 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 20:33:15,205 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 20:33:15,206 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-23 20:33:15,206 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 20:33:15,206 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 20:33:15,207 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 20:33:15,207 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-23 20:33:15,207 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 20:33:15,207 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_81bfcf3a-b0b4-44a8-974b-b8220f7a8842/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81bfcf3a-b0b4-44a8-974b-b8220f7a8842/bin/utaipan-verify-mE87zJ7Ire Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7e3410638a547f2efce35a13c7d23c64ee660b1c493ec273ce9d4043edc218c3 [2023-11-23 20:33:15,447 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 20:33:15,485 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 20:33:15,488 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 20:33:15,489 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 20:33:15,490 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 20:33:15,491 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81bfcf3a-b0b4-44a8-974b-b8220f7a8842/bin/utaipan-verify-mE87zJ7Ire/../../sv-benchmarks/c/aws-c-common/aws_hash_table_put_harness.i [2023-11-23 20:33:18,676 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 20:33:19,514 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 20:33:19,515 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81bfcf3a-b0b4-44a8-974b-b8220f7a8842/sv-benchmarks/c/aws-c-common/aws_hash_table_put_harness.i [2023-11-23 20:33:19,563 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81bfcf3a-b0b4-44a8-974b-b8220f7a8842/bin/utaipan-verify-mE87zJ7Ire/data/3e9b915dd/702f7d710d0a469286f6da79195999e0/FLAG0ecf749f1 [2023-11-23 20:33:19,585 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81bfcf3a-b0b4-44a8-974b-b8220f7a8842/bin/utaipan-verify-mE87zJ7Ire/data/3e9b915dd/702f7d710d0a469286f6da79195999e0 [2023-11-23 20:33:19,590 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 20:33:19,593 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 20:33:19,594 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 20:33:19,595 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 20:33:19,601 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 20:33:19,602 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 08:33:19" (1/1) ... [2023-11-23 20:33:19,603 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@103558a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:33:19, skipping insertion in model container [2023-11-23 20:33:19,604 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 08:33:19" (1/1) ... [2023-11-23 20:33:19,769 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 20:33:20,181 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_81bfcf3a-b0b4-44a8-974b-b8220f7a8842/sv-benchmarks/c/aws-c-common/aws_hash_table_put_harness.i[4492,4505] [2023-11-23 20:33:20,192 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_81bfcf3a-b0b4-44a8-974b-b8220f7a8842/sv-benchmarks/c/aws-c-common/aws_hash_table_put_harness.i[4552,4565] [2023-11-23 20:33:21,889 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 20:33:21,892 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 20:33:21,893 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 20:33:21,902 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 20:33:21,906 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 20:33:21,943 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 20:33:21,944 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 20:33:21,947 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 20:33:21,948 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 20:33:21,951 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 20:33:21,952 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 20:33:21,953 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 20:33:21,954 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 20:33:22,695 WARN L635 FunctionHandler]: implicit declaration of function __atomic_load_n [2023-11-23 20:33:22,696 WARN L635 FunctionHandler]: implicit declaration of function __atomic_store_n [2023-11-23 20:33:22,698 WARN L635 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2023-11-23 20:33:22,699 WARN L635 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2023-11-23 20:33:22,701 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2023-11-23 20:33:22,702 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2023-11-23 20:33:22,703 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2023-11-23 20:33:22,704 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2023-11-23 20:33:22,705 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2023-11-23 20:33:22,706 WARN L635 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2023-11-23 20:33:23,564 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 20:33:23,565 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 20:33:23,593 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 20:33:23,594 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 20:33:23,600 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 20:33:23,601 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 20:33:23,615 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 20:33:23,616 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 20:33:23,617 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 20:33:23,617 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 20:33:23,618 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 20:33:23,618 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 20:33:23,619 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 20:33:23,654 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 20:33:23,702 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 20:33:23,728 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_81bfcf3a-b0b4-44a8-974b-b8220f7a8842/sv-benchmarks/c/aws-c-common/aws_hash_table_put_harness.i[4492,4505] [2023-11-23 20:33:23,728 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_81bfcf3a-b0b4-44a8-974b-b8220f7a8842/sv-benchmarks/c/aws-c-common/aws_hash_table_put_harness.i[4552,4565] [2023-11-23 20:33:23,789 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 20:33:23,789 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 20:33:23,790 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 20:33:23,792 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 20:33:23,793 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 20:33:23,806 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 20:33:23,806 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 20:33:23,807 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 20:33:23,807 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 20:33:23,808 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 20:33:23,809 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 20:33:23,810 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 20:33:23,811 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 20:33:23,863 WARN L635 FunctionHandler]: implicit declaration of function __atomic_load_n [2023-11-23 20:33:23,865 WARN L635 FunctionHandler]: implicit declaration of function __atomic_store_n [2023-11-23 20:33:23,866 WARN L635 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2023-11-23 20:33:23,867 WARN L635 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2023-11-23 20:33:23,868 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2023-11-23 20:33:23,869 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2023-11-23 20:33:23,870 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2023-11-23 20:33:23,870 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2023-11-23 20:33:23,871 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2023-11-23 20:33:23,872 WARN L635 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2023-11-23 20:33:23,932 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [7576-7587] [2023-11-23 20:33:24,046 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 20:33:24,047 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 20:33:24,055 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 20:33:24,056 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 20:33:24,059 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 20:33:24,060 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 20:33:24,075 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 20:33:24,076 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 20:33:24,076 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 20:33:24,077 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 20:33:24,078 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 20:33:24,078 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 20:33:24,079 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 20:33:24,215 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 20:33:24,501 WARN L675 CHandler]: The function __atomic_fetch_or is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 20:33:24,502 WARN L675 CHandler]: The function equals_fn is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 20:33:24,502 WARN L675 CHandler]: The function __atomic_fetch_sub is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 20:33:24,502 WARN L675 CHandler]: The function __atomic_exchange_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 20:33:24,502 WARN L675 CHandler]: The function __atomic_fetch_xor is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 20:33:24,502 WARN L675 CHandler]: The function htons is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 20:33:24,502 WARN L675 CHandler]: The function ntohl is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 20:33:24,503 WARN L675 CHandler]: The function __atomic_compare_exchange_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 20:33:24,503 WARN L675 CHandler]: The function __atomic_fetch_add is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 20:33:24,503 WARN L675 CHandler]: The function fprintf is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 20:33:24,503 WARN L675 CHandler]: The function htonl is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 20:33:24,503 WARN L675 CHandler]: The function __atomic_store_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 20:33:24,503 WARN L675 CHandler]: The function ntohs is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 20:33:24,503 WARN L675 CHandler]: The function __atomic_load_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 20:33:24,504 WARN L675 CHandler]: The function __atomic_thread_fence is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 20:33:24,504 WARN L675 CHandler]: The function callback is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 20:33:24,504 WARN L675 CHandler]: The function __atomic_fetch_and is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 20:33:24,504 WARN L675 CHandler]: The function aws_array_list_ensure_capacity is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 20:33:24,512 INFO L206 MainTranslator]: Completed translation [2023-11-23 20:33:24,512 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:33:24 WrapperNode [2023-11-23 20:33:24,513 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 20:33:24,514 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 20:33:24,514 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 20:33:24,514 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 20:33:24,522 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:33:24" (1/1) ... [2023-11-23 20:33:24,656 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:33:24" (1/1) ... [2023-11-23 20:33:24,804 INFO L138 Inliner]: procedures = 773, calls = 2490, calls flagged for inlining = 70, calls inlined = 25, statements flattened = 1457 [2023-11-23 20:33:24,804 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 20:33:24,805 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 20:33:24,806 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 20:33:24,806 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 20:33:24,817 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:33:24" (1/1) ... [2023-11-23 20:33:24,817 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:33:24" (1/1) ... [2023-11-23 20:33:24,843 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:33:24" (1/1) ... [2023-11-23 20:33:24,844 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:33:24" (1/1) ... [2023-11-23 20:33:24,921 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:33:24" (1/1) ... [2023-11-23 20:33:24,929 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:33:24" (1/1) ... [2023-11-23 20:33:24,944 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:33:24" (1/1) ... [2023-11-23 20:33:24,954 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:33:24" (1/1) ... [2023-11-23 20:33:24,978 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 20:33:24,979 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 20:33:24,979 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 20:33:24,979 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 20:33:24,980 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:33:24" (1/1) ... [2023-11-23 20:33:24,993 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 20:33:25,009 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81bfcf3a-b0b4-44a8-974b-b8220f7a8842/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 20:33:25,029 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81bfcf3a-b0b4-44a8-974b-b8220f7a8842/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 20:33:25,048 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81bfcf3a-b0b4-44a8-974b-b8220f7a8842/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 20:33:25,076 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2023-11-23 20:33:25,076 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2023-11-23 20:33:25,076 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2023-11-23 20:33:25,076 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real [2023-11-23 20:33:25,076 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-23 20:33:25,076 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2023-11-23 20:33:25,076 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2023-11-23 20:33:25,077 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-23 20:33:25,077 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-23 20:33:25,077 INFO L130 BoogieDeclarations]: Found specification of procedure hash_table_state_is_valid [2023-11-23 20:33:25,077 INFO L138 BoogieDeclarations]: Found implementation of procedure hash_table_state_is_valid [2023-11-23 20:33:25,077 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-23 20:33:25,077 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 20:33:25,077 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-23 20:33:25,077 INFO L130 BoogieDeclarations]: Found specification of procedure s_emplace_item [2023-11-23 20:33:25,078 INFO L138 BoogieDeclarations]: Found implementation of procedure s_emplace_item [2023-11-23 20:33:25,078 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 20:33:25,078 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 20:33:25,078 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2023-11-23 20:33:25,078 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2023-11-23 20:33:25,078 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2023-11-23 20:33:25,078 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2023-11-23 20:33:25,078 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-11-23 20:33:25,078 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mem_release [2023-11-23 20:33:25,079 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mem_release [2023-11-23 20:33:25,079 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-23 20:33:25,079 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_plus [2023-11-23 20:33:25,079 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_plus [2023-11-23 20:33:25,079 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-23 20:33:25,079 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2023-11-23 20:33:25,079 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2023-11-23 20:33:25,080 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-23 20:33:25,080 INFO L130 BoogieDeclarations]: Found specification of procedure s_hash_for [2023-11-23 20:33:25,080 INFO L138 BoogieDeclarations]: Found implementation of procedure s_hash_for [2023-11-23 20:33:25,080 INFO L130 BoogieDeclarations]: Found specification of procedure aws_is_power_of_two [2023-11-23 20:33:25,080 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_is_power_of_two [2023-11-23 20:33:25,080 INFO L130 BoogieDeclarations]: Found specification of procedure s_update_template_size [2023-11-23 20:33:25,080 INFO L138 BoogieDeclarations]: Found implementation of procedure s_update_template_size [2023-11-23 20:33:25,080 INFO L130 BoogieDeclarations]: Found specification of procedure s_hash_keys_eq [2023-11-23 20:33:25,081 INFO L138 BoogieDeclarations]: Found implementation of procedure s_hash_keys_eq [2023-11-23 20:33:25,081 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_uninterpreted_equals [2023-11-23 20:33:25,081 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_uninterpreted_equals [2023-11-23 20:33:25,081 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-23 20:33:25,081 INFO L130 BoogieDeclarations]: Found specification of procedure aws_allocator_is_valid [2023-11-23 20:33:25,081 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_allocator_is_valid [2023-11-23 20:33:25,081 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-11-23 20:33:25,082 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_calloc [2023-11-23 20:33:25,082 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_calloc [2023-11-23 20:33:25,082 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2023-11-23 20:33:25,082 INFO L130 BoogieDeclarations]: Found specification of procedure hash_table_state_required_bytes [2023-11-23 20:33:25,082 INFO L138 BoogieDeclarations]: Found implementation of procedure hash_table_state_required_bytes [2023-11-23 20:33:25,082 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2023-11-23 20:33:25,082 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2023-11-23 20:33:25,082 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_uninterpreted_hasher [2023-11-23 20:33:25,083 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_uninterpreted_hasher [2023-11-23 20:33:25,083 INFO L130 BoogieDeclarations]: Found specification of procedure s_safe_eq_check [2023-11-23 20:33:25,083 INFO L138 BoogieDeclarations]: Found implementation of procedure s_safe_eq_check [2023-11-23 20:33:25,083 INFO L130 BoogieDeclarations]: Found specification of procedure s_find_entry [2023-11-23 20:33:25,083 INFO L138 BoogieDeclarations]: Found implementation of procedure s_find_entry [2023-11-23 20:33:25,083 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-23 20:33:25,083 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-23 20:33:25,083 INFO L130 BoogieDeclarations]: Found specification of procedure aws_hash_table_is_valid [2023-11-23 20:33:25,084 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_hash_table_is_valid [2023-11-23 20:33:25,084 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-23 20:33:25,084 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2023-11-23 20:33:25,084 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2023-11-23 20:33:25,084 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2023-11-23 20:33:25,084 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2023-11-23 20:33:25,084 INFO L130 BoogieDeclarations]: Found specification of procedure aws_add_size_checked [2023-11-23 20:33:25,084 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_add_size_checked [2023-11-23 20:33:25,085 INFO L130 BoogieDeclarations]: Found specification of procedure s_alloc_state [2023-11-23 20:33:25,085 INFO L138 BoogieDeclarations]: Found implementation of procedure s_alloc_state [2023-11-23 20:33:25,085 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2023-11-23 20:33:25,085 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2023-11-23 20:33:25,085 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-23 20:33:25,567 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 20:33:25,570 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 20:33:25,998 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##5: assume !true; [2023-11-23 20:33:26,060 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##10: assume !true; [2023-11-23 20:33:26,759 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##7: assume !true; [2023-11-23 20:33:26,759 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##41: assume !true; [2023-11-23 20:33:28,492 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 20:33:29,358 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 20:33:29,358 INFO L309 CfgBuilder]: Removed 11 assume(true) statements. [2023-11-23 20:33:29,360 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:33:29 BoogieIcfgContainer [2023-11-23 20:33:29,360 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 20:33:29,363 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 20:33:29,364 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 20:33:29,367 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 20:33:29,368 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 08:33:19" (1/3) ... [2023-11-23 20:33:29,369 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d001db5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 08:33:29, skipping insertion in model container [2023-11-23 20:33:29,369 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:33:24" (2/3) ... [2023-11-23 20:33:29,369 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d001db5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 08:33:29, skipping insertion in model container [2023-11-23 20:33:29,369 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:33:29" (3/3) ... [2023-11-23 20:33:29,371 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_hash_table_put_harness.i [2023-11-23 20:33:29,396 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 20:33:29,397 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-23 20:33:29,470 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 20:33:29,479 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;@15d03e67, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 20:33:29,479 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-23 20:33:29,489 INFO L276 IsEmpty]: Start isEmpty. Operand has 286 states, 173 states have (on average 1.260115606936416) internal successors, (218), 170 states have internal predecessors, (218), 86 states have call successors, (86), 29 states have call predecessors, (86), 29 states have return successors, (86), 86 states have call predecessors, (86), 86 states have call successors, (86) [2023-11-23 20:33:29,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2023-11-23 20:33:29,506 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 20:33:29,507 INFO L195 NwaCegarLoop]: trace histogram [9, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 20:33:29,508 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 20:33:29,514 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 20:33:29,514 INFO L85 PathProgramCache]: Analyzing trace with hash -1095969560, now seen corresponding path program 1 times [2023-11-23 20:33:29,527 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 20:33:29,527 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1545115613] [2023-11-23 20:33:29,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 20:33:29,528 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:33:30,139 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 20:33:30,140 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [330249268] [2023-11-23 20:33:30,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 20:33:30,141 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 20:33:30,141 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81bfcf3a-b0b4-44a8-974b-b8220f7a8842/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 20:33:30,144 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81bfcf3a-b0b4-44a8-974b-b8220f7a8842/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 20:33:30,192 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81bfcf3a-b0b4-44a8-974b-b8220f7a8842/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-23 20:33:31,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:33:31,324 INFO L262 TraceCheckSpWp]: Trace formula consists of 2563 conjuncts, 27 conjunts are in the unsatisfiable core [2023-11-23 20:33:31,339 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 20:33:31,683 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2023-11-23 20:33:32,183 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 42 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2023-11-23 20:33:32,184 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 20:33:32,184 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 20:33:32,184 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1545115613] [2023-11-23 20:33:32,185 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 20:33:32,185 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [330249268] [2023-11-23 20:33:32,186 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [330249268] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 20:33:32,186 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 20:33:32,186 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-23 20:33:32,188 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1809700526] [2023-11-23 20:33:32,189 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 20:33:32,194 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-23 20:33:32,195 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 20:33:32,224 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-23 20:33:32,226 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2023-11-23 20:33:32,231 INFO L87 Difference]: Start difference. First operand has 286 states, 173 states have (on average 1.260115606936416) internal successors, (218), 170 states have internal predecessors, (218), 86 states have call successors, (86), 29 states have call predecessors, (86), 29 states have return successors, (86), 86 states have call predecessors, (86), 86 states have call successors, (86) Second operand has 9 states, 7 states have (on average 6.142857142857143) internal successors, (43), 7 states have internal predecessors, (43), 4 states have call successors, (23), 3 states have call predecessors, (23), 4 states have return successors, (21), 4 states have call predecessors, (21), 4 states have call successors, (21) [2023-11-23 20:33:35,350 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2023-11-23 20:33:37,471 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 20:33:39,525 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 20:33:41,620 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 20:33:43,685 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 20:33:45,750 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 20:33:48,268 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 20:33:50,309 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 20:33:52,394 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 20:33:54,467 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 20:33:56,826 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 20:33:59,538 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 20:34:01,613 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 20:34:03,682 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 20:34:05,761 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 20:34:07,809 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 20:34:09,901 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 20:34:11,947 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 20:34:14,001 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 20:34:16,727 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 20:34:18,795 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0]