./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_linked_list_insert_after_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a4ef708-1cdc-4926-8150-3f37d0f13d81/bin/utaipan-verify-SwPr7d2a91/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a4ef708-1cdc-4926-8150-3f37d0f13d81/bin/utaipan-verify-SwPr7d2a91/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a4ef708-1cdc-4926-8150-3f37d0f13d81/bin/utaipan-verify-SwPr7d2a91/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a4ef708-1cdc-4926-8150-3f37d0f13d81/bin/utaipan-verify-SwPr7d2a91/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_linked_list_insert_after_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a4ef708-1cdc-4926-8150-3f37d0f13d81/bin/utaipan-verify-SwPr7d2a91/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a4ef708-1cdc-4926-8150-3f37d0f13d81/bin/utaipan-verify-SwPr7d2a91 --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 811b19098d8792ad6e5000a82cea527dd92a4bca0da5ce1bf33c0114316cf54d --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-25 00:00:40,705 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-25 00:00:40,824 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a4ef708-1cdc-4926-8150-3f37d0f13d81/bin/utaipan-verify-SwPr7d2a91/config/svcomp-Reach-64bit-Taipan_Default.epf [2023-11-25 00:00:40,836 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-25 00:00:40,837 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-25 00:00:40,876 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-25 00:00:40,877 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-25 00:00:40,878 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-25 00:00:40,879 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-25 00:00:40,884 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-25 00:00:40,885 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-25 00:00:40,886 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-25 00:00:40,886 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-25 00:00:40,888 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-25 00:00:40,888 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-25 00:00:40,889 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-25 00:00:40,889 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-25 00:00:40,890 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-25 00:00:40,890 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-25 00:00:40,891 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-25 00:00:40,892 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-25 00:00:40,892 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-25 00:00:40,893 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-25 00:00:40,894 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-25 00:00:40,895 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-25 00:00:40,895 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-25 00:00:40,896 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-25 00:00:40,896 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-25 00:00:40,897 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-25 00:00:40,897 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-25 00:00:40,899 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-25 00:00:40,899 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-25 00:00:40,900 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-25 00:00:40,900 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-25 00:00:40,900 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-25 00:00:40,901 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-25 00:00:40,901 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-25 00:00:40,902 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-25 00:00:40,902 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-25 00:00:40,902 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-25 00:00:40,903 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-25 00:00:40,903 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-25 00:00:40,903 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-25 00:00:40,904 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-25 00:00:40,904 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_5a4ef708-1cdc-4926-8150-3f37d0f13d81/bin/utaipan-verify-SwPr7d2a91/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a4ef708-1cdc-4926-8150-3f37d0f13d81/bin/utaipan-verify-SwPr7d2a91 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 811b19098d8792ad6e5000a82cea527dd92a4bca0da5ce1bf33c0114316cf54d [2023-11-25 00:00:41,240 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-25 00:00:41,275 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-25 00:00:41,278 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-25 00:00:41,279 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-25 00:00:41,281 INFO L274 PluginConnector]: CDTParser initialized [2023-11-25 00:00:41,282 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a4ef708-1cdc-4926-8150-3f37d0f13d81/bin/utaipan-verify-SwPr7d2a91/../../sv-benchmarks/c/aws-c-common/aws_linked_list_insert_after_harness.i [2023-11-25 00:00:44,369 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-25 00:00:44,921 INFO L384 CDTParser]: Found 1 translation units. [2023-11-25 00:00:44,922 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a4ef708-1cdc-4926-8150-3f37d0f13d81/sv-benchmarks/c/aws-c-common/aws_linked_list_insert_after_harness.i [2023-11-25 00:00:44,969 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a4ef708-1cdc-4926-8150-3f37d0f13d81/bin/utaipan-verify-SwPr7d2a91/data/02138f29a/2a74a27b5c084ff49c0f820f15b2bf4e/FLAG0f1efa2f8 [2023-11-25 00:00:44,988 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a4ef708-1cdc-4926-8150-3f37d0f13d81/bin/utaipan-verify-SwPr7d2a91/data/02138f29a/2a74a27b5c084ff49c0f820f15b2bf4e [2023-11-25 00:00:44,994 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-25 00:00:44,996 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-25 00:00:44,999 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-25 00:00:44,999 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-25 00:00:45,005 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-25 00:00:45,006 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 12:00:44" (1/1) ... [2023-11-25 00:00:45,007 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@39e79db7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:00:45, skipping insertion in model container [2023-11-25 00:00:45,008 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 12:00:44" (1/1) ... [2023-11-25 00:00:45,131 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-25 00:00:45,452 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_5a4ef708-1cdc-4926-8150-3f37d0f13d81/sv-benchmarks/c/aws-c-common/aws_linked_list_insert_after_harness.i[4502,4515] [2023-11-25 00:00:45,460 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_5a4ef708-1cdc-4926-8150-3f37d0f13d81/sv-benchmarks/c/aws-c-common/aws_linked_list_insert_after_harness.i[4562,4575] [2023-11-25 00:00:46,335 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-25 00:00:46,350 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-25 00:00:46,351 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-25 00:00:46,352 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-25 00:00:46,353 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-25 00:00:46,370 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-25 00:00:46,371 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-25 00:00:46,373 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-25 00:00:46,374 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-25 00:00:46,376 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-25 00:00:46,377 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-25 00:00:46,378 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-25 00:00:46,378 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-25 00:00:46,792 WARN L638 FunctionHandler]: implicit declaration of function __atomic_load_n [2023-11-25 00:00:46,794 WARN L638 FunctionHandler]: implicit declaration of function __atomic_store_n [2023-11-25 00:00:46,795 WARN L638 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2023-11-25 00:00:46,796 WARN L638 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2023-11-25 00:00:46,797 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2023-11-25 00:00:46,798 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2023-11-25 00:00:46,799 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2023-11-25 00:00:46,800 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2023-11-25 00:00:46,800 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2023-11-25 00:00:46,801 WARN L638 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2023-11-25 00:00:46,985 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-25 00:00:47,003 INFO L202 MainTranslator]: Completed pre-run [2023-11-25 00:00:47,025 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_5a4ef708-1cdc-4926-8150-3f37d0f13d81/sv-benchmarks/c/aws-c-common/aws_linked_list_insert_after_harness.i[4502,4515] [2023-11-25 00:00:47,027 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_5a4ef708-1cdc-4926-8150-3f37d0f13d81/sv-benchmarks/c/aws-c-common/aws_linked_list_insert_after_harness.i[4562,4575] [2023-11-25 00:00:47,093 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-25 00:00:47,095 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-25 00:00:47,096 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-25 00:00:47,097 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-25 00:00:47,097 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-25 00:00:47,107 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-25 00:00:47,121 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-25 00:00:47,123 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-25 00:00:47,129 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-25 00:00:47,131 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-25 00:00:47,131 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-25 00:00:47,132 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-25 00:00:47,132 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-25 00:00:47,202 WARN L638 FunctionHandler]: implicit declaration of function __atomic_load_n [2023-11-25 00:00:47,205 WARN L638 FunctionHandler]: implicit declaration of function __atomic_store_n [2023-11-25 00:00:47,207 WARN L638 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2023-11-25 00:00:47,208 WARN L638 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2023-11-25 00:00:47,211 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2023-11-25 00:00:47,211 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2023-11-25 00:00:47,212 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2023-11-25 00:00:47,213 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2023-11-25 00:00:47,213 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2023-11-25 00:00:47,214 WARN L638 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2023-11-25 00:00:47,267 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-25 00:00:47,557 WARN L675 CHandler]: The function __atomic_fetch_or is called, but not defined or handled by StandardFunctionHandler. [2023-11-25 00:00:47,558 WARN L675 CHandler]: The function __atomic_fetch_sub is called, but not defined or handled by StandardFunctionHandler. [2023-11-25 00:00:47,558 WARN L675 CHandler]: The function __atomic_exchange_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-25 00:00:47,559 WARN L675 CHandler]: The function __atomic_fetch_xor is called, but not defined or handled by StandardFunctionHandler. [2023-11-25 00:00:47,559 WARN L675 CHandler]: The function htons is called, but not defined or handled by StandardFunctionHandler. [2023-11-25 00:00:47,559 WARN L675 CHandler]: The function ntohl is called, but not defined or handled by StandardFunctionHandler. [2023-11-25 00:00:47,560 WARN L675 CHandler]: The function __atomic_compare_exchange_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-25 00:00:47,560 WARN L675 CHandler]: The function __atomic_fetch_add is called, but not defined or handled by StandardFunctionHandler. [2023-11-25 00:00:47,561 WARN L675 CHandler]: The function htonl is called, but not defined or handled by StandardFunctionHandler. [2023-11-25 00:00:47,561 WARN L675 CHandler]: The function __atomic_store_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-25 00:00:47,561 WARN L675 CHandler]: The function ntohs is called, but not defined or handled by StandardFunctionHandler. [2023-11-25 00:00:47,562 WARN L675 CHandler]: The function __atomic_load_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-25 00:00:47,562 WARN L675 CHandler]: The function __atomic_thread_fence is called, but not defined or handled by StandardFunctionHandler. [2023-11-25 00:00:47,562 WARN L675 CHandler]: The function __atomic_fetch_and is called, but not defined or handled by StandardFunctionHandler. [2023-11-25 00:00:47,562 WARN L675 CHandler]: The function aws_array_list_ensure_capacity is called, but not defined or handled by StandardFunctionHandler. [2023-11-25 00:00:47,570 INFO L206 MainTranslator]: Completed translation [2023-11-25 00:00:47,571 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:00:47 WrapperNode [2023-11-25 00:00:47,571 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-25 00:00:47,573 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-25 00:00:47,573 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-25 00:00:47,573 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-25 00:00:47,581 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:00:47" (1/1) ... [2023-11-25 00:00:47,684 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:00:47" (1/1) ... [2023-11-25 00:00:47,777 INFO L138 Inliner]: procedures = 678, calls = 1048, calls flagged for inlining = 50, calls inlined = 4, statements flattened = 76 [2023-11-25 00:00:47,778 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-25 00:00:47,778 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-25 00:00:47,779 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-25 00:00:47,779 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-25 00:00:47,789 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:00:47" (1/1) ... [2023-11-25 00:00:47,789 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:00:47" (1/1) ... [2023-11-25 00:00:47,798 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:00:47" (1/1) ... [2023-11-25 00:00:47,798 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:00:47" (1/1) ... [2023-11-25 00:00:47,819 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:00:47" (1/1) ... [2023-11-25 00:00:47,847 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:00:47" (1/1) ... [2023-11-25 00:00:47,851 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:00:47" (1/1) ... [2023-11-25 00:00:47,864 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:00:47" (1/1) ... [2023-11-25 00:00:47,868 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-25 00:00:47,869 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-25 00:00:47,872 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-25 00:00:47,873 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-25 00:00:47,874 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:00:47" (1/1) ... [2023-11-25 00:00:47,880 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-25 00:00:47,893 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a4ef708-1cdc-4926-8150-3f37d0f13d81/bin/utaipan-verify-SwPr7d2a91/z3 [2023-11-25 00:00:47,907 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a4ef708-1cdc-4926-8150-3f37d0f13d81/bin/utaipan-verify-SwPr7d2a91/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-25 00:00:47,930 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a4ef708-1cdc-4926-8150-3f37d0f13d81/bin/utaipan-verify-SwPr7d2a91/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-25 00:00:47,961 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-25 00:00:47,961 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-25 00:00:47,961 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-25 00:00:47,961 INFO L130 BoogieDeclarations]: Found specification of procedure aws_linked_list_node_next_is_valid [2023-11-25 00:00:47,962 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_linked_list_node_next_is_valid [2023-11-25 00:00:47,962 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-25 00:00:47,962 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-25 00:00:47,962 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-25 00:00:47,962 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-25 00:00:47,963 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-25 00:00:47,964 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-25 00:00:47,964 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-25 00:00:47,964 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-25 00:00:47,964 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-25 00:00:47,965 INFO L130 BoogieDeclarations]: Found specification of procedure aws_linked_list_node_prev_is_valid [2023-11-25 00:00:47,965 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_linked_list_node_prev_is_valid [2023-11-25 00:00:47,965 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-25 00:00:48,262 INFO L241 CfgBuilder]: Building ICFG [2023-11-25 00:00:48,264 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-25 00:00:48,502 INFO L282 CfgBuilder]: Performing block encoding [2023-11-25 00:00:48,694 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-25 00:00:48,694 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-25 00:00:48,696 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 12:00:48 BoogieIcfgContainer [2023-11-25 00:00:48,696 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-25 00:00:48,699 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-25 00:00:48,699 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-25 00:00:48,702 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-25 00:00:48,703 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 12:00:44" (1/3) ... [2023-11-25 00:00:48,703 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b4bdd98 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 12:00:48, skipping insertion in model container [2023-11-25 00:00:48,704 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:00:47" (2/3) ... [2023-11-25 00:00:48,708 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b4bdd98 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 12:00:48, skipping insertion in model container [2023-11-25 00:00:48,709 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 12:00:48" (3/3) ... [2023-11-25 00:00:48,715 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_linked_list_insert_after_harness.i [2023-11-25 00:00:48,735 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-25 00:00:48,737 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-25 00:00:48,798 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-25 00:00:48,806 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;@53606ad1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-25 00:00:48,806 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-25 00:00:48,810 INFO L276 IsEmpty]: Start isEmpty. Operand has 46 states, 20 states have (on average 1.1) internal successors, (22), 21 states have internal predecessors, (22), 20 states have call successors, (20), 4 states have call predecessors, (20), 4 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2023-11-25 00:00:48,818 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2023-11-25 00:00:48,819 INFO L187 NwaCegarLoop]: Found error trace [2023-11-25 00:00:48,820 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-25 00:00:48,820 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-25 00:00:48,826 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-25 00:00:48,826 INFO L85 PathProgramCache]: Analyzing trace with hash -989440254, now seen corresponding path program 1 times [2023-11-25 00:00:48,837 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-25 00:00:48,838 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [71009012] [2023-11-25 00:00:48,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-25 00:00:48,838 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-25 00:00:49,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-25 00:00:52,645 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-25 00:00:52,646 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-25 00:00:52,647 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [71009012] [2023-11-25 00:00:52,648 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [71009012] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-25 00:00:52,648 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-25 00:00:52,649 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-25 00:00:52,650 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [461265718] [2023-11-25 00:00:52,651 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-25 00:00:52,658 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-25 00:00:52,658 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-25 00:00:52,694 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-25 00:00:52,695 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-11-25 00:00:52,698 INFO L87 Difference]: Start difference. First operand has 46 states, 20 states have (on average 1.1) internal successors, (22), 21 states have internal predecessors, (22), 20 states have call successors, (20), 4 states have call predecessors, (20), 4 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) Second operand has 8 states, 5 states have (on average 1.8) internal successors, (9), 6 states have internal predecessors, (9), 3 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-25 00:00:53,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-25 00:00:53,218 INFO L93 Difference]: Finished difference Result 86 states and 124 transitions. [2023-11-25 00:00:53,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-25 00:00:53,221 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 5 states have (on average 1.8) internal successors, (9), 6 states have internal predecessors, (9), 3 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 19 [2023-11-25 00:00:53,222 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-25 00:00:53,231 INFO L225 Difference]: With dead ends: 86 [2023-11-25 00:00:53,232 INFO L226 Difference]: Without dead ends: 48 [2023-11-25 00:00:53,253 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2023-11-25 00:00:53,257 INFO L413 NwaCegarLoop]: 45 mSDtfsCounter, 9 mSDsluCounter, 199 mSDsCounter, 0 mSdLazyCounter, 158 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 244 SdHoareTripleChecker+Invalid, 164 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 158 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-25 00:00:53,259 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 244 Invalid, 164 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 158 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-25 00:00:53,278 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2023-11-25 00:00:53,318 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 48. [2023-11-25 00:00:53,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48 states, 22 states have (on average 1.0454545454545454) internal successors, (23), 23 states have internal predecessors, (23), 20 states have call successors, (20), 5 states have call predecessors, (20), 5 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2023-11-25 00:00:53,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 62 transitions. [2023-11-25 00:00:53,328 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 62 transitions. Word has length 19 [2023-11-25 00:00:53,329 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-25 00:00:53,329 INFO L495 AbstractCegarLoop]: Abstraction has 48 states and 62 transitions. [2023-11-25 00:00:53,330 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 5 states have (on average 1.8) internal successors, (9), 6 states have internal predecessors, (9), 3 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-25 00:00:53,330 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 62 transitions. [2023-11-25 00:00:53,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2023-11-25 00:00:53,332 INFO L187 NwaCegarLoop]: Found error trace [2023-11-25 00:00:53,333 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-11-25 00:00:53,337 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-25 00:00:53,342 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-25 00:00:53,343 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-25 00:00:53,343 INFO L85 PathProgramCache]: Analyzing trace with hash 473962202, now seen corresponding path program 1 times [2023-11-25 00:00:53,344 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-25 00:00:53,344 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [85522740] [2023-11-25 00:00:53,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-25 00:00:53,345 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-25 00:00:53,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-25 00:00:55,688 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-25 00:00:55,688 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-25 00:00:55,689 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [85522740] [2023-11-25 00:00:55,689 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [85522740] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-25 00:00:55,689 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1493617249] [2023-11-25 00:00:55,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-25 00:00:55,690 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-25 00:00:55,690 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a4ef708-1cdc-4926-8150-3f37d0f13d81/bin/utaipan-verify-SwPr7d2a91/z3 [2023-11-25 00:00:55,697 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a4ef708-1cdc-4926-8150-3f37d0f13d81/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-25 00:00:55,729 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a4ef708-1cdc-4926-8150-3f37d0f13d81/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-25 00:00:55,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-25 00:00:55,933 INFO L262 TraceCheckSpWp]: Trace formula consists of 277 conjuncts, 76 conjunts are in the unsatisfiable core [2023-11-25 00:00:55,947 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-25 00:00:56,219 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-25 00:00:56,238 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 110 treesize of output 101 [2023-11-25 00:00:56,246 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-25 00:00:56,249 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-25 00:00:56,253 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 43 treesize of output 42 [2023-11-25 00:00:56,264 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 5 treesize of output 3 [2023-11-25 00:00:56,296 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 74 treesize of output 56 [2023-11-25 00:00:56,316 INFO L349 Elim1Store]: treesize reduction 29, result has 3.3 percent of original size [2023-11-25 00:00:56,317 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 70 treesize of output 55 [2023-11-25 00:00:56,350 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 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 16 treesize of output 13 [2023-11-25 00:00:56,365 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 70 treesize of output 52 [2023-11-25 00:00:56,388 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-25 00:00:56,397 INFO L349 Elim1Store]: treesize reduction 39, result has 2.5 percent of original size [2023-11-25 00:00:56,397 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 129 treesize of output 120 [2023-11-25 00:00:56,403 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-25 00:00:56,404 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-25 00:00:56,409 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 45 treesize of output 35 [2023-11-25 00:00:56,485 INFO L349 Elim1Store]: treesize reduction 60, result has 41.2 percent of original size [2023-11-25 00:00:56,485 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 62 treesize of output 115 [2023-11-25 00:00:56,511 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 188 treesize of output 172 [2023-11-25 00:00:56,522 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 186 treesize of output 160 [2023-11-25 00:00:56,537 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 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 150 treesize of output 139 [2023-11-25 00:00:56,639 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 126 treesize of output 108 [2023-11-25 00:00:56,823 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: no need to replace index [2023-11-25 00:00:56,824 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [439000394] [2023-11-25 00:00:56,846 INFO L159 IcfgInterpreter]: Started Sifa with 23 locations of interest [2023-11-25 00:00:56,846 INFO L166 IcfgInterpreter]: Building call graph [2023-11-25 00:00:56,850 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-11-25 00:00:56,856 INFO L176 IcfgInterpreter]: Starting interpretation [2023-11-25 00:00:56,856 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-11-25 00:00:56,910 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a4ef708-1cdc-4926-8150-3f37d0f13d81/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-25 00:00:57,110 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a4ef708-1cdc-4926-8150-3f37d0f13d81/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-25 00:00:57,111 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: Script currently locked by de.uni_freiburg.informatik.ultimate.lib.smtlibutils.IncrementalPlicationChecker@32afd8d0 at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.ManagedScript.assertScriptNotLocked(ManagedScript.java:109) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.eliminate(QuantifierPushTermWalker.java:282) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.PartialQuantifierElimination.eliminateLight(PartialQuantifierElimination.java:62) at de.uni_freiburg.informatik.ultimate.lib.sifa.SymbolicTools$TermDomainOperationProviderWithLightElimination.newQuantifier(SymbolicTools.java:284) at de.uni_freiburg.informatik.ultimate.lib.sifa.SymbolicTools$TermDomainOperationProviderWithLightElimination.projectExistentially(SymbolicTools.java:270) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.TermDomainOperationProvider.projectExistentially(TermDomainOperationProvider.java:1) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateTransformer.strongestPostcondition(PredicateTransformer.java:131) at de.uni_freiburg.informatik.ultimate.lib.sifa.SymbolicTools.post(SymbolicTools.java:117) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretInternal(DagInterpreter.java:227) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTransAndStoreLoiPred(DagInterpreter.java:209) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTrans(DagInterpreter.java:187) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretNode(DagInterpreter.java:165) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:123) at de.uni_freiburg.informatik.ultimate.lib.sifa.IcfgInterpreter.interpretLoisInProcedure(IcfgInterpreter.java:136) at de.uni_freiburg.informatik.ultimate.lib.sifa.IcfgInterpreter.interpret(IcfgInterpreter.java:127) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:102) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:68) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:77) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:267) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:148) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:137) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:82) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:337) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:431) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:366) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:415) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:302) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseSequentialProgram(TraceAbstractionStarter.java:262) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:175) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:154) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:150) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:127) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:233) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:227) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:144) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2023-11-25 00:00:57,115 INFO L158 Benchmark]: Toolchain (without parser) took 12118.94ms. Allocated memory was 142.6MB in the beginning and 257.9MB in the end (delta: 115.3MB). Free memory was 98.5MB in the beginning and 181.9MB in the end (delta: -83.4MB). Peak memory consumption was 35.1MB. Max. memory is 16.1GB. [2023-11-25 00:00:57,115 INFO L158 Benchmark]: CDTParser took 2.25ms. Allocated memory is still 107.0MB. Free memory is still 54.3MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-25 00:00:57,115 INFO L158 Benchmark]: CACSL2BoogieTranslator took 2572.69ms. Allocated memory is still 142.6MB. Free memory was 98.1MB in the beginning and 55.4MB in the end (delta: 42.7MB). Peak memory consumption was 63.6MB. Max. memory is 16.1GB. [2023-11-25 00:00:57,116 INFO L158 Benchmark]: Boogie Procedure Inliner took 205.18ms. Allocated memory is still 142.6MB. Free memory was 55.4MB in the beginning and 96.7MB in the end (delta: -41.3MB). Peak memory consumption was 15.8MB. Max. memory is 16.1GB. [2023-11-25 00:00:57,116 INFO L158 Benchmark]: Boogie Preprocessor took 90.34ms. Allocated memory is still 142.6MB. Free memory was 96.7MB in the beginning and 94.2MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-25 00:00:57,116 INFO L158 Benchmark]: RCFGBuilder took 826.88ms. Allocated memory is still 142.6MB. Free memory was 94.2MB in the beginning and 64.0MB in the end (delta: 30.2MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. [2023-11-25 00:00:57,117 INFO L158 Benchmark]: TraceAbstraction took 8415.18ms. Allocated memory was 142.6MB in the beginning and 257.9MB in the end (delta: 115.3MB). Free memory was 63.1MB in the beginning and 181.9MB in the end (delta: -118.8MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-25 00:00:57,119 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 2.25ms. Allocated memory is still 107.0MB. Free memory is still 54.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 2572.69ms. Allocated memory is still 142.6MB. Free memory was 98.1MB in the beginning and 55.4MB in the end (delta: 42.7MB). Peak memory consumption was 63.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 205.18ms. Allocated memory is still 142.6MB. Free memory was 55.4MB in the beginning and 96.7MB in the end (delta: -41.3MB). Peak memory consumption was 15.8MB. Max. memory is 16.1GB. * Boogie Preprocessor took 90.34ms. Allocated memory is still 142.6MB. Free memory was 96.7MB in the beginning and 94.2MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 826.88ms. Allocated memory is still 142.6MB. Free memory was 94.2MB in the beginning and 64.0MB in the end (delta: 30.2MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. * TraceAbstraction took 8415.18ms. Allocated memory was 142.6MB in the beginning and 257.9MB in the end (delta: 115.3MB). Free memory was 63.1MB in the beginning and 181.9MB in the end (delta: -118.8MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: Script currently locked by de.uni_freiburg.informatik.ultimate.lib.smtlibutils.IncrementalPlicationChecker@32afd8d0 de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: Script currently locked by de.uni_freiburg.informatik.ultimate.lib.smtlibutils.IncrementalPlicationChecker@32afd8d0: de.uni_freiburg.informatik.ultimate.lib.smtlibutils.ManagedScript.assertScriptNotLocked(ManagedScript.java:109) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2023-11-25 00:00:57,150 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a4ef708-1cdc-4926-8150-3f37d0f13d81/bin/utaipan-verify-SwPr7d2a91/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a4ef708-1cdc-4926-8150-3f37d0f13d81/bin/utaipan-verify-SwPr7d2a91/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a4ef708-1cdc-4926-8150-3f37d0f13d81/bin/utaipan-verify-SwPr7d2a91/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a4ef708-1cdc-4926-8150-3f37d0f13d81/bin/utaipan-verify-SwPr7d2a91/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a4ef708-1cdc-4926-8150-3f37d0f13d81/bin/utaipan-verify-SwPr7d2a91/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_linked_list_insert_after_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a4ef708-1cdc-4926-8150-3f37d0f13d81/bin/utaipan-verify-SwPr7d2a91/config/svcomp-Reach-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a4ef708-1cdc-4926-8150-3f37d0f13d81/bin/utaipan-verify-SwPr7d2a91 --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 811b19098d8792ad6e5000a82cea527dd92a4bca0da5ce1bf33c0114316cf54d --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-25 00:00:59,916 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-25 00:01:00,037 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a4ef708-1cdc-4926-8150-3f37d0f13d81/bin/utaipan-verify-SwPr7d2a91/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2023-11-25 00:01:00,046 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-25 00:01:00,047 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-25 00:01:00,093 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-25 00:01:00,094 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-25 00:01:00,094 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-25 00:01:00,095 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-25 00:01:00,096 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-25 00:01:00,096 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-25 00:01:00,097 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-25 00:01:00,097 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-25 00:01:00,098 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-25 00:01:00,098 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-25 00:01:00,099 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-25 00:01:00,100 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-25 00:01:00,100 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-25 00:01:00,101 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-25 00:01:00,101 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-25 00:01:00,102 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-25 00:01:00,102 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-25 00:01:00,103 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-25 00:01:00,103 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-25 00:01:00,104 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-25 00:01:00,104 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-25 00:01:00,104 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-25 00:01:00,105 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-25 00:01:00,105 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-25 00:01:00,106 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-25 00:01:00,106 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-25 00:01:00,106 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-25 00:01:00,107 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-25 00:01:00,108 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-25 00:01:00,108 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-25 00:01:00,108 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-25 00:01:00,109 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-25 00:01:00,109 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-25 00:01:00,109 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-25 00:01:00,110 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-25 00:01:00,110 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-25 00:01:00,111 INFO L153 SettingsManager]: * Logic for external solver=AUFBV 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_5a4ef708-1cdc-4926-8150-3f37d0f13d81/bin/utaipan-verify-SwPr7d2a91/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a4ef708-1cdc-4926-8150-3f37d0f13d81/bin/utaipan-verify-SwPr7d2a91 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 811b19098d8792ad6e5000a82cea527dd92a4bca0da5ce1bf33c0114316cf54d [2023-11-25 00:01:00,525 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-25 00:01:00,546 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-25 00:01:00,549 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-25 00:01:00,550 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-25 00:01:00,551 INFO L274 PluginConnector]: CDTParser initialized [2023-11-25 00:01:00,553 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a4ef708-1cdc-4926-8150-3f37d0f13d81/bin/utaipan-verify-SwPr7d2a91/../../sv-benchmarks/c/aws-c-common/aws_linked_list_insert_after_harness.i [2023-11-25 00:01:04,019 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-25 00:01:04,625 INFO L384 CDTParser]: Found 1 translation units. [2023-11-25 00:01:04,625 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a4ef708-1cdc-4926-8150-3f37d0f13d81/sv-benchmarks/c/aws-c-common/aws_linked_list_insert_after_harness.i [2023-11-25 00:01:04,674 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a4ef708-1cdc-4926-8150-3f37d0f13d81/bin/utaipan-verify-SwPr7d2a91/data/722d27e24/2dea8b942af7490e9d5905d642522190/FLAG2324616b8 [2023-11-25 00:01:04,696 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a4ef708-1cdc-4926-8150-3f37d0f13d81/bin/utaipan-verify-SwPr7d2a91/data/722d27e24/2dea8b942af7490e9d5905d642522190 [2023-11-25 00:01:04,702 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-25 00:01:04,704 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-25 00:01:04,708 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-25 00:01:04,708 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-25 00:01:04,713 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-25 00:01:04,714 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 12:01:04" (1/1) ... [2023-11-25 00:01:04,715 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@a1b25e0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:01:04, skipping insertion in model container [2023-11-25 00:01:04,716 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 12:01:04" (1/1) ... [2023-11-25 00:01:04,857 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-25 00:01:05,180 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_5a4ef708-1cdc-4926-8150-3f37d0f13d81/sv-benchmarks/c/aws-c-common/aws_linked_list_insert_after_harness.i[4502,4515] [2023-11-25 00:01:05,187 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_5a4ef708-1cdc-4926-8150-3f37d0f13d81/sv-benchmarks/c/aws-c-common/aws_linked_list_insert_after_harness.i[4562,4575] [2023-11-25 00:01:06,059 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-25 00:01:06,064 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-25 00:01:06,064 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-25 00:01:06,070 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-25 00:01:06,072 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-25 00:01:06,088 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-25 00:01:06,090 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-25 00:01:06,100 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-25 00:01:06,101 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-25 00:01:06,103 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-25 00:01:06,105 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-25 00:01:06,106 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-25 00:01:06,106 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-25 00:01:06,499 WARN L638 FunctionHandler]: implicit declaration of function __atomic_load_n [2023-11-25 00:01:06,501 WARN L638 FunctionHandler]: implicit declaration of function __atomic_store_n [2023-11-25 00:01:06,502 WARN L638 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2023-11-25 00:01:06,504 WARN L638 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2023-11-25 00:01:06,505 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2023-11-25 00:01:06,506 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2023-11-25 00:01:06,507 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2023-11-25 00:01:06,508 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2023-11-25 00:01:06,508 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2023-11-25 00:01:06,509 WARN L638 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2023-11-25 00:01:06,696 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-25 00:01:06,728 INFO L199 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2023-11-25 00:01:06,789 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-25 00:01:06,796 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_5a4ef708-1cdc-4926-8150-3f37d0f13d81/sv-benchmarks/c/aws-c-common/aws_linked_list_insert_after_harness.i[4502,4515] [2023-11-25 00:01:06,797 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_5a4ef708-1cdc-4926-8150-3f37d0f13d81/sv-benchmarks/c/aws-c-common/aws_linked_list_insert_after_harness.i[4562,4575] [2023-11-25 00:01:06,867 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-25 00:01:06,867 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-25 00:01:06,868 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-25 00:01:06,868 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-25 00:01:06,874 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-25 00:01:06,881 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-25 00:01:06,881 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-25 00:01:06,882 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-25 00:01:06,883 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-25 00:01:06,884 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-25 00:01:06,885 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-25 00:01:06,885 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-25 00:01:06,885 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-25 00:01:06,957 WARN L638 FunctionHandler]: implicit declaration of function __atomic_load_n [2023-11-25 00:01:06,958 WARN L638 FunctionHandler]: implicit declaration of function __atomic_store_n [2023-11-25 00:01:06,959 WARN L638 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2023-11-25 00:01:06,960 WARN L638 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2023-11-25 00:01:06,961 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2023-11-25 00:01:06,961 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2023-11-25 00:01:06,962 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2023-11-25 00:01:06,962 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2023-11-25 00:01:06,963 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2023-11-25 00:01:06,963 WARN L638 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2023-11-25 00:01:07,004 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-25 00:01:07,012 INFO L202 MainTranslator]: Completed pre-run [2023-11-25 00:01:07,025 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_5a4ef708-1cdc-4926-8150-3f37d0f13d81/sv-benchmarks/c/aws-c-common/aws_linked_list_insert_after_harness.i[4502,4515] [2023-11-25 00:01:07,026 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_5a4ef708-1cdc-4926-8150-3f37d0f13d81/sv-benchmarks/c/aws-c-common/aws_linked_list_insert_after_harness.i[4562,4575] [2023-11-25 00:01:07,103 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-25 00:01:07,103 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-25 00:01:07,104 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-25 00:01:07,104 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-25 00:01:07,105 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-25 00:01:07,113 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-25 00:01:07,114 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-25 00:01:07,115 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-25 00:01:07,116 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-25 00:01:07,117 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-25 00:01:07,117 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-25 00:01:07,118 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-25 00:01:07,118 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-25 00:01:07,151 WARN L638 FunctionHandler]: implicit declaration of function __atomic_load_n [2023-11-25 00:01:07,152 WARN L638 FunctionHandler]: implicit declaration of function __atomic_store_n [2023-11-25 00:01:07,152 WARN L638 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2023-11-25 00:01:07,153 WARN L638 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2023-11-25 00:01:07,154 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2023-11-25 00:01:07,154 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2023-11-25 00:01:07,155 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2023-11-25 00:01:07,155 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2023-11-25 00:01:07,156 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2023-11-25 00:01:07,156 WARN L638 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2023-11-25 00:01:07,205 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-25 00:01:07,427 WARN L675 CHandler]: The function __atomic_fetch_or is called, but not defined or handled by StandardFunctionHandler. [2023-11-25 00:01:07,427 WARN L675 CHandler]: The function __atomic_fetch_sub is called, but not defined or handled by StandardFunctionHandler. [2023-11-25 00:01:07,428 WARN L675 CHandler]: The function __atomic_exchange_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-25 00:01:07,428 WARN L675 CHandler]: The function __atomic_fetch_xor is called, but not defined or handled by StandardFunctionHandler. [2023-11-25 00:01:07,428 WARN L675 CHandler]: The function htons is called, but not defined or handled by StandardFunctionHandler. [2023-11-25 00:01:07,428 WARN L675 CHandler]: The function ntohl is called, but not defined or handled by StandardFunctionHandler. [2023-11-25 00:01:07,428 WARN L675 CHandler]: The function __atomic_compare_exchange_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-25 00:01:07,428 WARN L675 CHandler]: The function __atomic_fetch_add is called, but not defined or handled by StandardFunctionHandler. [2023-11-25 00:01:07,428 WARN L675 CHandler]: The function htonl is called, but not defined or handled by StandardFunctionHandler. [2023-11-25 00:01:07,428 WARN L675 CHandler]: The function __atomic_store_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-25 00:01:07,429 WARN L675 CHandler]: The function ntohs is called, but not defined or handled by StandardFunctionHandler. [2023-11-25 00:01:07,429 WARN L675 CHandler]: The function __atomic_load_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-25 00:01:07,429 WARN L675 CHandler]: The function __atomic_thread_fence is called, but not defined or handled by StandardFunctionHandler. [2023-11-25 00:01:07,429 WARN L675 CHandler]: The function __atomic_fetch_and is called, but not defined or handled by StandardFunctionHandler. [2023-11-25 00:01:07,429 WARN L675 CHandler]: The function aws_array_list_ensure_capacity is called, but not defined or handled by StandardFunctionHandler. [2023-11-25 00:01:07,437 INFO L206 MainTranslator]: Completed translation [2023-11-25 00:01:07,437 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:01:07 WrapperNode [2023-11-25 00:01:07,438 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-25 00:01:07,439 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-25 00:01:07,439 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-25 00:01:07,439 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-25 00:01:07,447 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:01:07" (1/1) ... [2023-11-25 00:01:07,547 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:01:07" (1/1) ... [2023-11-25 00:01:07,591 INFO L138 Inliner]: procedures = 697, calls = 1048, calls flagged for inlining = 50, calls inlined = 4, statements flattened = 77 [2023-11-25 00:01:07,591 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-25 00:01:07,592 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-25 00:01:07,592 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-25 00:01:07,592 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-25 00:01:07,602 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:01:07" (1/1) ... [2023-11-25 00:01:07,602 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:01:07" (1/1) ... [2023-11-25 00:01:07,612 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:01:07" (1/1) ... [2023-11-25 00:01:07,613 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:01:07" (1/1) ... [2023-11-25 00:01:07,628 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:01:07" (1/1) ... [2023-11-25 00:01:07,630 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:01:07" (1/1) ... [2023-11-25 00:01:07,636 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:01:07" (1/1) ... [2023-11-25 00:01:07,639 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:01:07" (1/1) ... [2023-11-25 00:01:07,659 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-25 00:01:07,660 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-25 00:01:07,660 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-25 00:01:07,661 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-25 00:01:07,662 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:01:07" (1/1) ... [2023-11-25 00:01:07,679 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-25 00:01:07,695 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a4ef708-1cdc-4926-8150-3f37d0f13d81/bin/utaipan-verify-SwPr7d2a91/z3 [2023-11-25 00:01:07,712 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a4ef708-1cdc-4926-8150-3f37d0f13d81/bin/utaipan-verify-SwPr7d2a91/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-25 00:01:07,741 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a4ef708-1cdc-4926-8150-3f37d0f13d81/bin/utaipan-verify-SwPr7d2a91/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-25 00:01:07,753 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-25 00:01:07,753 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-25 00:01:07,753 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-25 00:01:07,754 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-25 00:01:07,754 INFO L130 BoogieDeclarations]: Found specification of procedure aws_linked_list_node_next_is_valid [2023-11-25 00:01:07,754 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_linked_list_node_next_is_valid [2023-11-25 00:01:07,754 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-25 00:01:07,754 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-25 00:01:07,754 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-25 00:01:07,755 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-25 00:01:07,755 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-25 00:01:07,755 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-25 00:01:07,755 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-25 00:01:07,755 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-25 00:01:07,755 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-25 00:01:07,756 INFO L130 BoogieDeclarations]: Found specification of procedure aws_linked_list_node_prev_is_valid [2023-11-25 00:01:07,756 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_linked_list_node_prev_is_valid [2023-11-25 00:01:07,990 INFO L241 CfgBuilder]: Building ICFG [2023-11-25 00:01:07,996 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-25 00:01:08,989 INFO L282 CfgBuilder]: Performing block encoding [2023-11-25 00:01:09,063 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-25 00:01:09,065 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-25 00:01:09,065 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 12:01:09 BoogieIcfgContainer [2023-11-25 00:01:09,065 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-25 00:01:09,068 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-25 00:01:09,068 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-25 00:01:09,072 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-25 00:01:09,072 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 12:01:04" (1/3) ... [2023-11-25 00:01:09,073 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2264932c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 12:01:09, skipping insertion in model container [2023-11-25 00:01:09,073 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:01:07" (2/3) ... [2023-11-25 00:01:09,075 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2264932c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 12:01:09, skipping insertion in model container [2023-11-25 00:01:09,076 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 12:01:09" (3/3) ... [2023-11-25 00:01:09,077 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_linked_list_insert_after_harness.i [2023-11-25 00:01:09,098 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-25 00:01:09,098 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-25 00:01:09,162 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-25 00:01:09,167 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;@6448e6ac, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-25 00:01:09,167 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-25 00:01:09,175 INFO L276 IsEmpty]: Start isEmpty. Operand has 56 states, 30 states have (on average 1.2333333333333334) internal successors, (37), 31 states have internal predecessors, (37), 20 states have call successors, (20), 4 states have call predecessors, (20), 4 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2023-11-25 00:01:09,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2023-11-25 00:01:09,201 INFO L187 NwaCegarLoop]: Found error trace [2023-11-25 00:01:09,201 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-25 00:01:09,203 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-25 00:01:09,209 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-25 00:01:09,209 INFO L85 PathProgramCache]: Analyzing trace with hash 118365304, now seen corresponding path program 1 times [2023-11-25 00:01:09,224 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-25 00:01:09,225 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [252871177] [2023-11-25 00:01:09,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-25 00:01:09,226 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-25 00:01:09,226 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a4ef708-1cdc-4926-8150-3f37d0f13d81/bin/utaipan-verify-SwPr7d2a91/mathsat [2023-11-25 00:01:09,229 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a4ef708-1cdc-4926-8150-3f37d0f13d81/bin/utaipan-verify-SwPr7d2a91/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-25 00:01:09,231 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a4ef708-1cdc-4926-8150-3f37d0f13d81/bin/utaipan-verify-SwPr7d2a91/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-11-25 00:01:09,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-25 00:01:09,535 INFO L262 TraceCheckSpWp]: Trace formula consists of 163 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-25 00:01:09,541 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-25 00:01:09,564 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-25 00:01:09,564 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-25 00:01:09,565 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-25 00:01:09,565 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [252871177] [2023-11-25 00:01:09,566 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [252871177] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-25 00:01:09,566 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-25 00:01:09,566 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-25 00:01:09,568 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2079857180] [2023-11-25 00:01:09,569 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-25 00:01:09,574 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-25 00:01:09,574 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-25 00:01:09,603 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-25 00:01:09,604 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-25 00:01:09,606 INFO L87 Difference]: Start difference. First operand has 56 states, 30 states have (on average 1.2333333333333334) internal successors, (37), 31 states have internal predecessors, (37), 20 states have call successors, (20), 4 states have call predecessors, (20), 4 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) Second operand has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-25 00:01:09,724 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-25 00:01:09,724 INFO L93 Difference]: Finished difference Result 109 states and 161 transitions. [2023-11-25 00:01:09,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-25 00:01:09,739 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 31 [2023-11-25 00:01:09,740 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-25 00:01:09,747 INFO L225 Difference]: With dead ends: 109 [2023-11-25 00:01:09,748 INFO L226 Difference]: Without dead ends: 54 [2023-11-25 00:01:09,757 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-25 00:01:09,760 INFO L413 NwaCegarLoop]: 70 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 70 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-25 00:01:09,761 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 70 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-25 00:01:09,782 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2023-11-25 00:01:09,815 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 54. [2023-11-25 00:01:09,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54 states, 29 states have (on average 1.1724137931034482) internal successors, (34), 30 states have internal predecessors, (34), 20 states have call successors, (20), 4 states have call predecessors, (20), 4 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2023-11-25 00:01:09,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 73 transitions. [2023-11-25 00:01:09,828 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 73 transitions. Word has length 31 [2023-11-25 00:01:09,829 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-25 00:01:09,829 INFO L495 AbstractCegarLoop]: Abstraction has 54 states and 73 transitions. [2023-11-25 00:01:09,832 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-25 00:01:09,832 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 73 transitions. [2023-11-25 00:01:09,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2023-11-25 00:01:09,835 INFO L187 NwaCegarLoop]: Found error trace [2023-11-25 00:01:09,836 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-25 00:01:09,853 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a4ef708-1cdc-4926-8150-3f37d0f13d81/bin/utaipan-verify-SwPr7d2a91/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2023-11-25 00:01:10,041 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a4ef708-1cdc-4926-8150-3f37d0f13d81/bin/utaipan-verify-SwPr7d2a91/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-25 00:01:10,042 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-25 00:01:10,043 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-25 00:01:10,043 INFO L85 PathProgramCache]: Analyzing trace with hash -738796548, now seen corresponding path program 1 times [2023-11-25 00:01:10,043 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-25 00:01:10,044 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1527678720] [2023-11-25 00:01:10,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-25 00:01:10,044 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-25 00:01:10,044 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a4ef708-1cdc-4926-8150-3f37d0f13d81/bin/utaipan-verify-SwPr7d2a91/mathsat [2023-11-25 00:01:10,066 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a4ef708-1cdc-4926-8150-3f37d0f13d81/bin/utaipan-verify-SwPr7d2a91/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-25 00:01:10,067 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a4ef708-1cdc-4926-8150-3f37d0f13d81/bin/utaipan-verify-SwPr7d2a91/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2023-11-25 00:01:10,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-25 00:01:10,462 INFO L262 TraceCheckSpWp]: Trace formula consists of 163 conjuncts, 47 conjunts are in the unsatisfiable core [2023-11-25 00:01:10,499 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-25 00:01:10,672 INFO L349 Elim1Store]: treesize reduction 9, result has 10.0 percent of original size [2023-11-25 00:01:10,673 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 19 [2023-11-25 00:01:10,718 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 16 [2023-11-25 00:01:10,770 INFO L349 Elim1Store]: treesize reduction 19, result has 20.8 percent of original size [2023-11-25 00:01:10,771 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 32 [2023-11-25 00:01:12,855 WARN L876 $PredicateComparison]: unable to prove that (exists ((|v_ULTIMATE.start_aws_linked_list_insert_after_~after#1.base_BEFORE_CALL_1| (_ BitVec 64))) (not (= (select (select |c_#memory_$Pointer$.base| |v_ULTIMATE.start_aws_linked_list_insert_after_~after#1.base_BEFORE_CALL_1|) (_ bv0 64)) |v_ULTIMATE.start_aws_linked_list_insert_after_~after#1.base_BEFORE_CALL_1|))) is different from true [2023-11-25 00:01:14,974 WARN L876 $PredicateComparison]: unable to prove that (exists ((|v_ULTIMATE.start_aws_linked_list_insert_after_~after#1.base_BEFORE_CALL_2| (_ BitVec 64))) (not (= |v_ULTIMATE.start_aws_linked_list_insert_after_~after#1.base_BEFORE_CALL_2| (select (select |c_#memory_$Pointer$.base| |v_ULTIMATE.start_aws_linked_list_insert_after_~after#1.base_BEFORE_CALL_2|) (_ bv0 64))))) is different from true [2023-11-25 00:01:17,146 WARN L876 $PredicateComparison]: unable to prove that (exists ((|v_ULTIMATE.start_aws_linked_list_insert_after_~after#1.base_BEFORE_CALL_3| (_ BitVec 64))) (not (= (select (select |c_#memory_$Pointer$.base| |v_ULTIMATE.start_aws_linked_list_insert_after_~after#1.base_BEFORE_CALL_3|) (_ bv0 64)) |v_ULTIMATE.start_aws_linked_list_insert_after_~after#1.base_BEFORE_CALL_3|))) is different from true [2023-11-25 00:01:17,332 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-25 00:01:17,342 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 298 treesize of output 249 [2023-11-25 00:01:19,527 INFO L349 Elim1Store]: treesize reduction 103, result has 16.3 percent of original size [2023-11-25 00:01:19,527 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 349 treesize of output 308 [2023-11-25 00:01:19,573 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 11 [2023-11-25 00:01:19,589 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-25 00:01:19,603 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 131 treesize of output 148 [2023-11-25 00:01:19,652 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 155 treesize of output 120 [2023-11-25 00:01:19,690 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 123 treesize of output 55 [2023-11-25 00:01:19,709 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 15 [2023-11-25 00:01:19,727 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 15 treesize of output 3 [2023-11-25 00:01:19,748 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 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 22 treesize of output 19 [2023-11-25 00:01:19,794 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 75 treesize of output 34 [2023-11-25 00:01:19,803 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-25 00:01:19,811 WARN L214 Elim1Store]: Array PQE input equivalent to false [2023-11-25 00:01:21,346 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 10 not checked. [2023-11-25 00:01:21,346 INFO L327 TraceCheckSpWp]: Computing backward predicates...