./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_linked_list_push_back_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 30e01a73 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_335fad7a-ca96-4974-92a1-624259493c4e/bin/utaipan-verify-mE87zJ7Ire/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_335fad7a-ca96-4974-92a1-624259493c4e/bin/utaipan-verify-mE87zJ7Ire/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_335fad7a-ca96-4974-92a1-624259493c4e/bin/utaipan-verify-mE87zJ7Ire/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_335fad7a-ca96-4974-92a1-624259493c4e/bin/utaipan-verify-mE87zJ7Ire/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_linked_list_push_back_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_335fad7a-ca96-4974-92a1-624259493c4e/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_335fad7a-ca96-4974-92a1-624259493c4e/bin/utaipan-verify-mE87zJ7Ire --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash d155cc00d5c2ba6f5ef1d5e883c6d133605de01ed97e4300960f893025d81fd1 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 21:16:09,106 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 21:16:09,251 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_335fad7a-ca96-4974-92a1-624259493c4e/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-64bit-Taipan_Default.epf [2023-11-23 21:16:09,265 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 21:16:09,266 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 21:16:09,324 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 21:16:09,325 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 21:16:09,325 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 21:16:09,326 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 21:16:09,332 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 21:16:09,333 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-23 21:16:09,334 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-23 21:16:09,335 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-23 21:16:09,337 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-23 21:16:09,337 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-23 21:16:09,338 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-23 21:16:09,338 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-23 21:16:09,339 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-23 21:16:09,339 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-23 21:16:09,340 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-23 21:16:09,341 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-23 21:16:09,341 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-23 21:16:09,343 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 21:16:09,344 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 21:16:09,344 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 21:16:09,345 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 21:16:09,345 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 21:16:09,346 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 21:16:09,346 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 21:16:09,347 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 21:16:09,348 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 21:16:09,349 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 21:16:09,349 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 21:16:09,349 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 21:16:09,350 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:16:09,350 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 21:16:09,351 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 21:16:09,352 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 21:16:09,352 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-23 21:16:09,352 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 21:16:09,353 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 21:16:09,353 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 21:16:09,353 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-23 21:16:09,354 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 21:16:09,354 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_335fad7a-ca96-4974-92a1-624259493c4e/bin/utaipan-verify-mE87zJ7Ire/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_335fad7a-ca96-4974-92a1-624259493c4e/bin/utaipan-verify-mE87zJ7Ire Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d155cc00d5c2ba6f5ef1d5e883c6d133605de01ed97e4300960f893025d81fd1 [2023-11-23 21:16:09,674 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 21:16:09,720 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 21:16:09,723 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 21:16:09,725 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 21:16:09,726 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 21:16:09,728 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_335fad7a-ca96-4974-92a1-624259493c4e/bin/utaipan-verify-mE87zJ7Ire/../../sv-benchmarks/c/aws-c-common/aws_linked_list_push_back_harness.i [2023-11-23 21:16:13,288 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 21:16:14,056 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 21:16:14,057 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_335fad7a-ca96-4974-92a1-624259493c4e/sv-benchmarks/c/aws-c-common/aws_linked_list_push_back_harness.i [2023-11-23 21:16:14,138 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_335fad7a-ca96-4974-92a1-624259493c4e/bin/utaipan-verify-mE87zJ7Ire/data/5ca721b7b/41c3d5b25a764c6f923907819774e9f7/FLAG6a004e237 [2023-11-23 21:16:14,163 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_335fad7a-ca96-4974-92a1-624259493c4e/bin/utaipan-verify-mE87zJ7Ire/data/5ca721b7b/41c3d5b25a764c6f923907819774e9f7 [2023-11-23 21:16:14,172 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 21:16:14,175 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 21:16:14,179 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 21:16:14,179 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 21:16:14,186 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 21:16:14,187 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:16:14" (1/1) ... [2023-11-23 21:16:14,188 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@79fa3af1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:16:14, skipping insertion in model container [2023-11-23 21:16:14,189 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:16:14" (1/1) ... [2023-11-23 21:16:14,335 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 21:16:14,748 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_335fad7a-ca96-4974-92a1-624259493c4e/sv-benchmarks/c/aws-c-common/aws_linked_list_push_back_harness.i[4499,4512] [2023-11-23 21:16:14,758 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_335fad7a-ca96-4974-92a1-624259493c4e/sv-benchmarks/c/aws-c-common/aws_linked_list_push_back_harness.i[4559,4572] [2023-11-23 21:16:15,828 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 21:16:15,830 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 21:16:15,831 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 21:16:15,832 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 21:16:15,834 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 21:16:15,855 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 21:16:15,860 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 21:16:15,863 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 21:16:15,866 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 21:16:15,869 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 21:16:15,875 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 21:16:15,876 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 21:16:15,877 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 21:16:16,429 WARN L635 FunctionHandler]: implicit declaration of function __atomic_load_n [2023-11-23 21:16:16,441 WARN L635 FunctionHandler]: implicit declaration of function __atomic_store_n [2023-11-23 21:16:16,442 WARN L635 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2023-11-23 21:16:16,444 WARN L635 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2023-11-23 21:16:16,447 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2023-11-23 21:16:16,448 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2023-11-23 21:16:16,456 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2023-11-23 21:16:16,457 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2023-11-23 21:16:16,458 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2023-11-23 21:16:16,459 WARN L635 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2023-11-23 21:16:16,699 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:16:16,727 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 21:16:16,746 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_335fad7a-ca96-4974-92a1-624259493c4e/sv-benchmarks/c/aws-c-common/aws_linked_list_push_back_harness.i[4499,4512] [2023-11-23 21:16:16,747 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_335fad7a-ca96-4974-92a1-624259493c4e/sv-benchmarks/c/aws-c-common/aws_linked_list_push_back_harness.i[4559,4572] [2023-11-23 21:16:16,855 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 21:16:16,856 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 21:16:16,857 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 21:16:16,857 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 21:16:16,859 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 21:16:16,886 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 21:16:16,887 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 21:16:16,889 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 21:16:16,891 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 21:16:16,893 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 21:16:16,895 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 21:16:16,896 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 21:16:16,897 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 21:16:17,034 WARN L635 FunctionHandler]: implicit declaration of function __atomic_load_n [2023-11-23 21:16:17,035 WARN L635 FunctionHandler]: implicit declaration of function __atomic_store_n [2023-11-23 21:16:17,036 WARN L635 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2023-11-23 21:16:17,037 WARN L635 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2023-11-23 21:16:17,072 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2023-11-23 21:16:17,073 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2023-11-23 21:16:17,073 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2023-11-23 21:16:17,074 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2023-11-23 21:16:17,074 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2023-11-23 21:16:17,075 WARN L635 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2023-11-23 21:16:17,157 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:16:17,469 WARN L675 CHandler]: The function __atomic_fetch_or is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 21:16:17,469 WARN L675 CHandler]: The function __atomic_fetch_sub is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 21:16:17,469 WARN L675 CHandler]: The function __atomic_exchange_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 21:16:17,470 WARN L675 CHandler]: The function __atomic_fetch_xor is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 21:16:17,470 WARN L675 CHandler]: The function htons is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 21:16:17,470 WARN L675 CHandler]: The function ntohl is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 21:16:17,470 WARN L675 CHandler]: The function __atomic_compare_exchange_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 21:16:17,471 WARN L675 CHandler]: The function __atomic_fetch_add is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 21:16:17,471 WARN L675 CHandler]: The function htonl is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 21:16:17,471 WARN L675 CHandler]: The function __atomic_store_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 21:16:17,471 WARN L675 CHandler]: The function ntohs is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 21:16:17,471 WARN L675 CHandler]: The function __atomic_load_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 21:16:17,472 WARN L675 CHandler]: The function memcmp is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 21:16:17,472 WARN L675 CHandler]: The function __atomic_thread_fence is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 21:16:17,472 WARN L675 CHandler]: The function __atomic_fetch_and is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 21:16:17,472 WARN L675 CHandler]: The function aws_array_list_ensure_capacity is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 21:16:17,481 INFO L206 MainTranslator]: Completed translation [2023-11-23 21:16:17,481 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:16:17 WrapperNode [2023-11-23 21:16:17,482 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 21:16:17,483 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 21:16:17,483 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 21:16:17,483 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 21:16:17,492 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:16:17" (1/1) ... [2023-11-23 21:16:17,598 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:16:17" (1/1) ... [2023-11-23 21:16:17,669 INFO L138 Inliner]: procedures = 678, calls = 1048, calls flagged for inlining = 52, calls inlined = 6, statements flattened = 149 [2023-11-23 21:16:17,669 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 21:16:17,670 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 21:16:17,670 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 21:16:17,671 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 21:16:17,679 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:16:17" (1/1) ... [2023-11-23 21:16:17,679 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:16:17" (1/1) ... [2023-11-23 21:16:17,683 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:16:17" (1/1) ... [2023-11-23 21:16:17,684 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:16:17" (1/1) ... [2023-11-23 21:16:17,702 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:16:17" (1/1) ... [2023-11-23 21:16:17,707 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:16:17" (1/1) ... [2023-11-23 21:16:17,712 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:16:17" (1/1) ... [2023-11-23 21:16:17,716 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:16:17" (1/1) ... [2023-11-23 21:16:17,724 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 21:16:17,725 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 21:16:17,725 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 21:16:17,725 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 21:16:17,726 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:16:17" (1/1) ... [2023-11-23 21:16:17,733 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:16:17,764 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_335fad7a-ca96-4974-92a1-624259493c4e/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 21:16:17,779 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_335fad7a-ca96-4974-92a1-624259493c4e/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 21:16:17,811 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_335fad7a-ca96-4974-92a1-624259493c4e/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 21:16:17,830 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-23 21:16:17,830 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-23 21:16:17,830 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-23 21:16:17,831 INFO L130 BoogieDeclarations]: Found specification of procedure aws_linked_list_node_next_is_valid [2023-11-23 21:16:17,831 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_linked_list_node_next_is_valid [2023-11-23 21:16:17,831 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-23 21:16:17,831 INFO L130 BoogieDeclarations]: Found specification of procedure aws_linked_list_is_valid [2023-11-23 21:16:17,831 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_linked_list_is_valid [2023-11-23 21:16:17,832 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 21:16:17,833 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-23 21:16:17,833 INFO L130 BoogieDeclarations]: Found specification of procedure aws_linked_list_insert_before [2023-11-23 21:16:17,833 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_linked_list_insert_before [2023-11-23 21:16:17,833 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 21:16:17,834 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 21:16:17,834 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-23 21:16:17,834 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-23 21:16:17,834 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-23 21:16:17,834 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-23 21:16:17,835 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-23 21:16:17,835 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2023-11-23 21:16:17,835 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2023-11-23 21:16:17,835 INFO L130 BoogieDeclarations]: Found specification of procedure aws_linked_list_node_prev_is_valid [2023-11-23 21:16:17,836 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_linked_list_node_prev_is_valid [2023-11-23 21:16:17,836 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-23 21:16:18,190 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 21:16:18,193 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 21:16:18,540 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 21:16:18,732 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 21:16:18,732 INFO L309 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-23 21:16:18,734 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:16:18 BoogieIcfgContainer [2023-11-23 21:16:18,734 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 21:16:18,737 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 21:16:18,737 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 21:16:18,741 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 21:16:18,741 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 09:16:14" (1/3) ... [2023-11-23 21:16:18,742 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b57f1d1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:16:18, skipping insertion in model container [2023-11-23 21:16:18,742 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:16:17" (2/3) ... [2023-11-23 21:16:18,742 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b57f1d1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:16:18, skipping insertion in model container [2023-11-23 21:16:18,742 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:16:18" (3/3) ... [2023-11-23 21:16:18,744 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_linked_list_push_back_harness.i [2023-11-23 21:16:18,769 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 21:16:18,769 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-23 21:16:18,838 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 21:16:18,845 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;@1732e1ab, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 21:16:18,846 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-23 21:16:18,850 INFO L276 IsEmpty]: Start isEmpty. Operand has 73 states, 36 states have (on average 1.2222222222222223) internal successors, (44), 37 states have internal predecessors, (44), 28 states have call successors, (28), 7 states have call predecessors, (28), 7 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) [2023-11-23 21:16:18,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2023-11-23 21:16:18,860 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:16:18,861 INFO L195 NwaCegarLoop]: trace histogram [5, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:16:18,862 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:16:18,867 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:16:18,868 INFO L85 PathProgramCache]: Analyzing trace with hash 1982315071, now seen corresponding path program 1 times [2023-11-23 21:16:18,878 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:16:18,879 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [611574743] [2023-11-23 21:16:18,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:16:18,880 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:16:19,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:16:20,080 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-11-23 21:16:20,081 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:16:20,082 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [611574743] [2023-11-23 21:16:20,083 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [611574743] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 21:16:20,083 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1042057175] [2023-11-23 21:16:20,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:16:20,085 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 21:16:20,087 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_335fad7a-ca96-4974-92a1-624259493c4e/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 21:16:20,095 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_335fad7a-ca96-4974-92a1-624259493c4e/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 21:16:20,124 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_335fad7a-ca96-4974-92a1-624259493c4e/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-23 21:16:20,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:16:20,461 INFO L262 TraceCheckSpWp]: Trace formula consists of 371 conjuncts, 61 conjunts are in the unsatisfiable core [2023-11-23 21:16:20,481 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:16:20,771 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 14 treesize of output 15 [2023-11-23 21:16:20,804 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 14 treesize of output 15 [2023-11-23 21:16:20,976 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 28 [2023-11-23 21:16:21,014 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 28 [2023-11-23 21:16:23,119 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-11-23 21:16:23,120 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 21:16:23,120 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1042057175] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:16:23,120 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-23 21:16:23,121 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [5] total 11 [2023-11-23 21:16:23,124 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [122772246] [2023-11-23 21:16:23,125 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:16:23,130 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-23 21:16:23,131 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:16:23,177 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-23 21:16:23,180 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2023-11-23 21:16:23,184 INFO L87 Difference]: Start difference. First operand has 73 states, 36 states have (on average 1.2222222222222223) internal successors, (44), 37 states have internal predecessors, (44), 28 states have call successors, (28), 7 states have call predecessors, (28), 7 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) Second operand has 8 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 7 states have internal predecessors, (18), 3 states have call successors, (11), 3 states have call predecessors, (11), 3 states have return successors, (9), 2 states have call predecessors, (9), 3 states have call successors, (9) [2023-11-23 21:16:23,906 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:16:23,907 INFO L93 Difference]: Finished difference Result 168 states and 242 transitions. [2023-11-23 21:16:23,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-23 21:16:23,909 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 7 states have internal predecessors, (18), 3 states have call successors, (11), 3 states have call predecessors, (11), 3 states have return successors, (9), 2 states have call predecessors, (9), 3 states have call successors, (9) Word has length 42 [2023-11-23 21:16:23,910 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:16:23,921 INFO L225 Difference]: With dead ends: 168 [2023-11-23 21:16:23,921 INFO L226 Difference]: Without dead ends: 100 [2023-11-23 21:16:23,926 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2023-11-23 21:16:23,929 INFO L413 NwaCegarLoop]: 81 mSDtfsCounter, 28 mSDsluCounter, 248 mSDsCounter, 0 mSdLazyCounter, 144 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 329 SdHoareTripleChecker+Invalid, 147 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 144 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-23 21:16:23,931 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 329 Invalid, 147 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 144 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-23 21:16:23,952 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100 states. [2023-11-23 21:16:23,997 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 99. [2023-11-23 21:16:23,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 99 states, 51 states have (on average 1.2352941176470589) internal successors, (63), 53 states have internal predecessors, (63), 36 states have call successors, (36), 12 states have call predecessors, (36), 11 states have return successors, (35), 33 states have call predecessors, (35), 35 states have call successors, (35) [2023-11-23 21:16:24,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 134 transitions. [2023-11-23 21:16:24,005 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 134 transitions. Word has length 42 [2023-11-23 21:16:24,006 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:16:24,006 INFO L495 AbstractCegarLoop]: Abstraction has 99 states and 134 transitions. [2023-11-23 21:16:24,007 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 7 states have internal predecessors, (18), 3 states have call successors, (11), 3 states have call predecessors, (11), 3 states have return successors, (9), 2 states have call predecessors, (9), 3 states have call successors, (9) [2023-11-23 21:16:24,007 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 134 transitions. [2023-11-23 21:16:24,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2023-11-23 21:16:24,010 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:16:24,011 INFO L195 NwaCegarLoop]: trace histogram [5, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:16:24,047 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_335fad7a-ca96-4974-92a1-624259493c4e/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-23 21:16:24,239 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_335fad7a-ca96-4974-92a1-624259493c4e/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2023-11-23 21:16:24,240 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:16:24,241 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:16:24,241 INFO L85 PathProgramCache]: Analyzing trace with hash 1641522883, now seen corresponding path program 1 times [2023-11-23 21:16:24,241 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:16:24,241 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [817097056] [2023-11-23 21:16:24,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:16:24,242 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:16:24,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:16:24,694 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-11-23 21:16:24,695 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:16:24,695 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [817097056] [2023-11-23 21:16:24,696 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [817097056] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:16:24,696 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:16:24,696 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-23 21:16:24,696 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1861862871] [2023-11-23 21:16:24,697 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:16:24,698 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-23 21:16:24,698 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:16:24,700 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-23 21:16:24,701 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-23 21:16:24,702 INFO L87 Difference]: Start difference. First operand 99 states and 134 transitions. Second operand has 7 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 7 states have internal predecessors, (19), 3 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (9), 2 states have call predecessors, (9), 3 states have call successors, (9) [2023-11-23 21:16:24,970 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:16:24,970 INFO L93 Difference]: Finished difference Result 180 states and 244 transitions. [2023-11-23 21:16:24,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-23 21:16:24,971 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 7 states have internal predecessors, (19), 3 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (9), 2 states have call predecessors, (9), 3 states have call successors, (9) Word has length 44 [2023-11-23 21:16:24,971 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:16:24,974 INFO L225 Difference]: With dead ends: 180 [2023-11-23 21:16:24,974 INFO L226 Difference]: Without dead ends: 99 [2023-11-23 21:16:24,976 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2023-11-23 21:16:24,978 INFO L413 NwaCegarLoop]: 77 mSDtfsCounter, 34 mSDsluCounter, 334 mSDsCounter, 0 mSdLazyCounter, 110 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 411 SdHoareTripleChecker+Invalid, 128 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 110 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-23 21:16:24,979 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 411 Invalid, 128 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 110 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-23 21:16:24,980 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2023-11-23 21:16:25,005 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 99. [2023-11-23 21:16:25,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 99 states, 51 states have (on average 1.196078431372549) internal successors, (61), 53 states have internal predecessors, (61), 36 states have call successors, (36), 12 states have call predecessors, (36), 11 states have return successors, (35), 33 states have call predecessors, (35), 35 states have call successors, (35) [2023-11-23 21:16:25,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 132 transitions. [2023-11-23 21:16:25,008 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 132 transitions. Word has length 44 [2023-11-23 21:16:25,009 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:16:25,009 INFO L495 AbstractCegarLoop]: Abstraction has 99 states and 132 transitions. [2023-11-23 21:16:25,009 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 7 states have internal predecessors, (19), 3 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (9), 2 states have call predecessors, (9), 3 states have call successors, (9) [2023-11-23 21:16:25,009 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 132 transitions. [2023-11-23 21:16:25,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2023-11-23 21:16:25,012 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:16:25,012 INFO L195 NwaCegarLoop]: trace histogram [5, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:16:25,013 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-23 21:16:25,013 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:16:25,013 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:16:25,014 INFO L85 PathProgramCache]: Analyzing trace with hash 1298930586, now seen corresponding path program 1 times [2023-11-23 21:16:25,014 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:16:25,014 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [906739466] [2023-11-23 21:16:25,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:16:25,015 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:16:25,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:16:25,461 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2023-11-23 21:16:25,462 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:16:25,462 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [906739466] [2023-11-23 21:16:25,462 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [906739466] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 21:16:25,462 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1485059769] [2023-11-23 21:16:25,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:16:25,463 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 21:16:25,463 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_335fad7a-ca96-4974-92a1-624259493c4e/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 21:16:25,464 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_335fad7a-ca96-4974-92a1-624259493c4e/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 21:16:25,475 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_335fad7a-ca96-4974-92a1-624259493c4e/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-23 21:16:25,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:16:25,738 INFO L262 TraceCheckSpWp]: Trace formula consists of 420 conjuncts, 66 conjunts are in the unsatisfiable core [2023-11-23 21:16:25,746 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:16:25,782 INFO L349 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2023-11-23 21:16:25,782 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 1 case distinctions, treesize of input 11 treesize of output 9 [2023-11-23 21:16:25,879 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 18 treesize of output 19 [2023-11-23 21:16:25,911 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 18 treesize of output 19 [2023-11-23 21:16:26,003 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 21:16:26,005 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 21:16:26,007 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 40 [2023-11-23 21:16:26,015 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 21:16:26,016 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 25 [2023-11-23 21:16:26,032 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 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 5 treesize of output 3 [2023-11-23 21:16:26,049 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 21:16:26,050 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 21:16:26,051 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 40 [2023-11-23 21:16:26,061 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 21:16:26,063 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 20 [2023-11-23 21:16:26,200 INFO L349 Elim1Store]: treesize reduction 42, result has 20.8 percent of original size [2023-11-23 21:16:26,201 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 155 treesize of output 151 [2023-11-23 21:16:26,212 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 131 treesize of output 121 [2023-11-23 21:16:26,232 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 21:16:26,234 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 74 treesize of output 38 [2023-11-23 21:16:26,252 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 21:16:26,255 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 57 treesize of output 28 [2023-11-23 21:16:27,925 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-11-23 21:16:27,925 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 21:16:32,106 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse6 (+ 16 |c_ULTIMATE.start_aws_linked_list_push_back_harness_~#list~0#1.offset|)) (.cse2 (+ 8 |c_ULTIMATE.start_aws_linked_list_push_back_harness_~#list~0#1.offset|)) (.cse1 (+ |c_ULTIMATE.start_ensure_linked_list_is_allocated_~list#1.offset| 24)) (.cse4 (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_ensure_linked_list_is_allocated_~curr~0#1.base|)) (.cse5 (+ |c_ULTIMATE.start_ensure_linked_list_is_allocated_~list#1.offset| 16))) (and (forall ((v_ArrVal_390 (Array Int Int))) (= (select (select (let ((.cse0 (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_ensure_linked_list_is_allocated_~curr~0#1.base| v_ArrVal_390))) (store .cse0 |c_ULTIMATE.start_ensure_linked_list_is_allocated_~list#1.base| (store (select .cse0 |c_ULTIMATE.start_ensure_linked_list_is_allocated_~list#1.base|) .cse1 |c_ULTIMATE.start_ensure_linked_list_is_allocated_~curr~0#1.base|))) |c_ULTIMATE.start_aws_linked_list_push_back_harness_~#list~0#1.base|) .cse2) 0)) (forall ((|ULTIMATE.start_ensure_linked_list_is_allocated_~curr~0#1.offset| Int) (v_ArrVal_387 Int)) (= (select (select (let ((.cse3 (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_ensure_linked_list_is_allocated_~curr~0#1.base| (store .cse4 |ULTIMATE.start_ensure_linked_list_is_allocated_~curr~0#1.offset| .cse5)))) (store .cse3 |c_ULTIMATE.start_ensure_linked_list_is_allocated_~list#1.base| (store (select .cse3 |c_ULTIMATE.start_ensure_linked_list_is_allocated_~list#1.base|) .cse1 v_ArrVal_387))) |c_ULTIMATE.start_aws_linked_list_push_back_harness_~#list~0#1.base|) .cse6) 0)) (forall ((v_ArrVal_390 (Array Int Int))) (= (select (select (let ((.cse7 (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_ensure_linked_list_is_allocated_~curr~0#1.base| v_ArrVal_390))) (store .cse7 |c_ULTIMATE.start_ensure_linked_list_is_allocated_~list#1.base| (store (select .cse7 |c_ULTIMATE.start_ensure_linked_list_is_allocated_~list#1.base|) .cse1 |c_ULTIMATE.start_ensure_linked_list_is_allocated_~curr~0#1.base|))) |c_ULTIMATE.start_aws_linked_list_push_back_harness_~#list~0#1.base|) .cse6) 0)) (forall ((|ULTIMATE.start_ensure_linked_list_is_allocated_~curr~0#1.offset| Int) (v_ArrVal_387 Int)) (= (select (select (let ((.cse8 (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_ensure_linked_list_is_allocated_~curr~0#1.base| (store .cse4 |ULTIMATE.start_ensure_linked_list_is_allocated_~curr~0#1.offset| .cse5)))) (store .cse8 |c_ULTIMATE.start_ensure_linked_list_is_allocated_~list#1.base| (store (select .cse8 |c_ULTIMATE.start_ensure_linked_list_is_allocated_~list#1.base|) .cse1 v_ArrVal_387))) |c_ULTIMATE.start_aws_linked_list_push_back_harness_~#list~0#1.base|) .cse2) 0)) (let ((.cse10 (+ 24 |c_ULTIMATE.start_aws_linked_list_push_back_harness_~#list~0#1.offset|))) (or (forall ((v_ArrVal_390 (Array Int Int))) (not (= (select (select (let ((.cse9 (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_ensure_linked_list_is_allocated_~curr~0#1.base| v_ArrVal_390))) (store .cse9 |c_ULTIMATE.start_ensure_linked_list_is_allocated_~list#1.base| (store (select .cse9 |c_ULTIMATE.start_ensure_linked_list_is_allocated_~list#1.base|) .cse1 |c_ULTIMATE.start_ensure_linked_list_is_allocated_~curr~0#1.base|))) |c_ULTIMATE.start_aws_linked_list_push_back_harness_~#list~0#1.base|) .cse10) 0))) (forall ((|ULTIMATE.start_ensure_linked_list_is_allocated_~curr~0#1.offset| Int) (v_ArrVal_387 Int)) (not (= 0 (select (select (let ((.cse11 (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_ensure_linked_list_is_allocated_~curr~0#1.base| (store .cse4 |ULTIMATE.start_ensure_linked_list_is_allocated_~curr~0#1.offset| .cse5)))) (store .cse11 |c_ULTIMATE.start_ensure_linked_list_is_allocated_~list#1.base| (store (select .cse11 |c_ULTIMATE.start_ensure_linked_list_is_allocated_~list#1.base|) .cse1 v_ArrVal_387))) |c_ULTIMATE.start_aws_linked_list_push_back_harness_~#list~0#1.base|) .cse10)))))) (or (not (= |c_ULTIMATE.start_aws_linked_list_push_back_harness_~#list~0#1.base| 0)) (not (= 0 |c_ULTIMATE.start_aws_linked_list_push_back_harness_~#list~0#1.offset|))) (or (forall ((v_ArrVal_390 (Array Int Int))) (not (= (select (select (let ((.cse12 (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_ensure_linked_list_is_allocated_~curr~0#1.base| v_ArrVal_390))) (store .cse12 |c_ULTIMATE.start_ensure_linked_list_is_allocated_~list#1.base| (store (select .cse12 |c_ULTIMATE.start_ensure_linked_list_is_allocated_~list#1.base|) .cse1 |c_ULTIMATE.start_ensure_linked_list_is_allocated_~curr~0#1.base|))) |c_ULTIMATE.start_aws_linked_list_push_back_harness_~#list~0#1.base|) |c_ULTIMATE.start_aws_linked_list_push_back_harness_~#list~0#1.offset|) 0))) (forall ((|ULTIMATE.start_ensure_linked_list_is_allocated_~curr~0#1.offset| Int) (v_ArrVal_387 Int)) (not (= (select (select (let ((.cse13 (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_ensure_linked_list_is_allocated_~curr~0#1.base| (store .cse4 |ULTIMATE.start_ensure_linked_list_is_allocated_~curr~0#1.offset| .cse5)))) (store .cse13 |c_ULTIMATE.start_ensure_linked_list_is_allocated_~list#1.base| (store (select .cse13 |c_ULTIMATE.start_ensure_linked_list_is_allocated_~list#1.base|) .cse1 v_ArrVal_387))) |c_ULTIMATE.start_aws_linked_list_push_back_harness_~#list~0#1.base|) |c_ULTIMATE.start_aws_linked_list_push_back_harness_~#list~0#1.offset|) 0)))))) is different from false [2023-11-23 21:16:32,582 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-23 21:16:32,582 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 4 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 380 treesize of output 457 [2023-11-23 21:17:00,914 WARN L293 SmtUtils]: Spent 25.46s on a formula simplification. DAG size of input: 344 DAG size of output: 181 (called from [L 346] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2023-11-23 21:17:00,914 INFO L349 Elim1Store]: treesize reduction 774, result has 32.7 percent of original size [2023-11-23 21:17:00,917 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 13 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 15 new quantified variables, introduced 59 case distinctions, treesize of input 927 treesize of output 2510