./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_linked_list_next_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_162833b8-5ca8-466d-8283-fa989945e1a7/bin/utaipan-verify-SwPr7d2a91/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_162833b8-5ca8-466d-8283-fa989945e1a7/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_162833b8-5ca8-466d-8283-fa989945e1a7/bin/utaipan-verify-SwPr7d2a91/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_162833b8-5ca8-466d-8283-fa989945e1a7/bin/utaipan-verify-SwPr7d2a91/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_linked_list_next_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_162833b8-5ca8-466d-8283-fa989945e1a7/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_162833b8-5ca8-466d-8283-fa989945e1a7/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 5bb1e95e9d6379d31cbb3e207d6fe85ddf495edebf9b764e927537f63dbf829e --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-24 23:21:17,200 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-24 23:21:17,322 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_162833b8-5ca8-466d-8283-fa989945e1a7/bin/utaipan-verify-SwPr7d2a91/config/svcomp-Reach-64bit-Taipan_Default.epf [2023-11-24 23:21:17,326 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-24 23:21:17,327 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-24 23:21:17,356 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-24 23:21:17,357 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-24 23:21:17,357 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-24 23:21:17,358 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-24 23:21:17,359 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-24 23:21:17,359 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-24 23:21:17,360 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-24 23:21:17,360 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-24 23:21:17,361 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-24 23:21:17,361 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-24 23:21:17,362 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-24 23:21:17,362 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-24 23:21:17,363 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-24 23:21:17,363 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-24 23:21:17,364 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-24 23:21:17,365 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-24 23:21:17,366 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-24 23:21:17,367 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-24 23:21:17,367 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-24 23:21:17,368 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-24 23:21:17,368 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-24 23:21:17,369 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-24 23:21:17,369 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-24 23:21:17,370 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-24 23:21:17,370 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-24 23:21:17,371 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-24 23:21:17,371 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-24 23:21:17,372 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-24 23:21:17,372 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-24 23:21:17,373 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-24 23:21:17,373 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-24 23:21:17,374 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-24 23:21:17,374 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-24 23:21:17,374 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-24 23:21:17,375 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-24 23:21:17,375 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-24 23:21:17,376 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-24 23:21:17,377 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-24 23:21:17,377 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-24 23:21:17,377 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_162833b8-5ca8-466d-8283-fa989945e1a7/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_162833b8-5ca8-466d-8283-fa989945e1a7/bin/utaipan-verify-SwPr7d2a91 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5bb1e95e9d6379d31cbb3e207d6fe85ddf495edebf9b764e927537f63dbf829e [2023-11-24 23:21:17,643 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-24 23:21:17,664 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-24 23:21:17,667 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-24 23:21:17,668 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-24 23:21:17,668 INFO L274 PluginConnector]: CDTParser initialized [2023-11-24 23:21:17,670 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_162833b8-5ca8-466d-8283-fa989945e1a7/bin/utaipan-verify-SwPr7d2a91/../../sv-benchmarks/c/aws-c-common/aws_linked_list_next_harness.i [2023-11-24 23:21:20,726 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-24 23:21:21,187 INFO L384 CDTParser]: Found 1 translation units. [2023-11-24 23:21:21,188 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_162833b8-5ca8-466d-8283-fa989945e1a7/sv-benchmarks/c/aws-c-common/aws_linked_list_next_harness.i [2023-11-24 23:21:21,227 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_162833b8-5ca8-466d-8283-fa989945e1a7/bin/utaipan-verify-SwPr7d2a91/data/e7bb6f0b3/473f5dbbe4da494ea857a369303683eb/FLAGa47e9b185 [2023-11-24 23:21:21,240 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_162833b8-5ca8-466d-8283-fa989945e1a7/bin/utaipan-verify-SwPr7d2a91/data/e7bb6f0b3/473f5dbbe4da494ea857a369303683eb [2023-11-24 23:21:21,242 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-24 23:21:21,244 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-24 23:21:21,246 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-24 23:21:21,246 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-24 23:21:21,252 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-24 23:21:21,253 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 11:21:21" (1/1) ... [2023-11-24 23:21:21,254 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@49a5bec1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:21:21, skipping insertion in model container [2023-11-24 23:21:21,254 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 11:21:21" (1/1) ... [2023-11-24 23:21:21,354 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-24 23:21:21,612 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_162833b8-5ca8-466d-8283-fa989945e1a7/sv-benchmarks/c/aws-c-common/aws_linked_list_next_harness.i[4494,4507] [2023-11-24 23:21:21,620 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_162833b8-5ca8-466d-8283-fa989945e1a7/sv-benchmarks/c/aws-c-common/aws_linked_list_next_harness.i[4554,4567] [2023-11-24 23:21:22,662 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-24 23:21:22,663 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-24 23:21:22,664 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-24 23:21:22,665 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-24 23:21:22,666 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-24 23:21:22,727 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-24 23:21:22,727 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-24 23:21:22,734 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-24 23:21:22,735 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-24 23:21:22,737 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-24 23:21:22,741 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-24 23:21:22,742 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-24 23:21:22,743 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-24 23:21:23,260 WARN L638 FunctionHandler]: implicit declaration of function __atomic_load_n [2023-11-24 23:21:23,261 WARN L638 FunctionHandler]: implicit declaration of function __atomic_store_n [2023-11-24 23:21:23,262 WARN L638 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2023-11-24 23:21:23,263 WARN L638 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2023-11-24 23:21:23,265 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2023-11-24 23:21:23,266 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2023-11-24 23:21:23,266 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2023-11-24 23:21:23,267 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2023-11-24 23:21:23,268 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2023-11-24 23:21:23,268 WARN L638 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2023-11-24 23:21:23,468 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 23:21:23,486 INFO L202 MainTranslator]: Completed pre-run [2023-11-24 23:21:23,500 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_162833b8-5ca8-466d-8283-fa989945e1a7/sv-benchmarks/c/aws-c-common/aws_linked_list_next_harness.i[4494,4507] [2023-11-24 23:21:23,501 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_162833b8-5ca8-466d-8283-fa989945e1a7/sv-benchmarks/c/aws-c-common/aws_linked_list_next_harness.i[4554,4567] [2023-11-24 23:21:23,544 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-24 23:21:23,545 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-24 23:21:23,545 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-24 23:21:23,546 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-24 23:21:23,546 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-24 23:21:23,556 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-24 23:21:23,557 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-24 23:21:23,558 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-24 23:21:23,558 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-24 23:21:23,560 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-24 23:21:23,560 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-24 23:21:23,561 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-24 23:21:23,561 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-24 23:21:23,622 WARN L638 FunctionHandler]: implicit declaration of function __atomic_load_n [2023-11-24 23:21:23,623 WARN L638 FunctionHandler]: implicit declaration of function __atomic_store_n [2023-11-24 23:21:23,624 WARN L638 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2023-11-24 23:21:23,624 WARN L638 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2023-11-24 23:21:23,626 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2023-11-24 23:21:23,626 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2023-11-24 23:21:23,627 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2023-11-24 23:21:23,627 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2023-11-24 23:21:23,628 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2023-11-24 23:21:23,628 WARN L638 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2023-11-24 23:21:23,702 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 23:21:23,951 WARN L675 CHandler]: The function __atomic_fetch_or is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 23:21:23,951 WARN L675 CHandler]: The function __atomic_fetch_sub is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 23:21:23,952 WARN L675 CHandler]: The function __atomic_exchange_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 23:21:23,952 WARN L675 CHandler]: The function __atomic_fetch_xor is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 23:21:23,952 WARN L675 CHandler]: The function htons is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 23:21:23,952 WARN L675 CHandler]: The function ntohl is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 23:21:23,953 WARN L675 CHandler]: The function __atomic_compare_exchange_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 23:21:23,953 WARN L675 CHandler]: The function __atomic_fetch_add is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 23:21:23,953 WARN L675 CHandler]: The function htonl is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 23:21:23,953 WARN L675 CHandler]: The function __atomic_store_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 23:21:23,953 WARN L675 CHandler]: The function ntohs is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 23:21:23,954 WARN L675 CHandler]: The function __atomic_load_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 23:21:23,954 WARN L675 CHandler]: The function __atomic_thread_fence is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 23:21:23,954 WARN L675 CHandler]: The function __atomic_fetch_and is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 23:21:23,954 WARN L675 CHandler]: The function aws_array_list_ensure_capacity is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 23:21:23,963 INFO L206 MainTranslator]: Completed translation [2023-11-24 23:21:23,963 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:21:23 WrapperNode [2023-11-24 23:21:23,964 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-24 23:21:23,965 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-24 23:21:23,965 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-24 23:21:23,965 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-24 23:21:23,974 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:21:23" (1/1) ... [2023-11-24 23:21:24,062 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:21:23" (1/1) ... [2023-11-24 23:21:24,114 INFO L138 Inliner]: procedures = 678, calls = 1039, calls flagged for inlining = 50, calls inlined = 4, statements flattened = 56 [2023-11-24 23:21:24,116 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-24 23:21:24,117 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-24 23:21:24,117 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-24 23:21:24,117 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-24 23:21:24,128 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:21:23" (1/1) ... [2023-11-24 23:21:24,128 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:21:23" (1/1) ... [2023-11-24 23:21:24,150 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:21:23" (1/1) ... [2023-11-24 23:21:24,150 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:21:23" (1/1) ... [2023-11-24 23:21:24,179 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:21:23" (1/1) ... [2023-11-24 23:21:24,181 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:21:23" (1/1) ... [2023-11-24 23:21:24,185 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:21:23" (1/1) ... [2023-11-24 23:21:24,203 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:21:23" (1/1) ... [2023-11-24 23:21:24,208 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-24 23:21:24,209 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-24 23:21:24,209 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-24 23:21:24,209 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-24 23:21:24,210 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:21:23" (1/1) ... [2023-11-24 23:21:24,235 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-24 23:21:24,251 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_162833b8-5ca8-466d-8283-fa989945e1a7/bin/utaipan-verify-SwPr7d2a91/z3 [2023-11-24 23:21:24,265 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_162833b8-5ca8-466d-8283-fa989945e1a7/bin/utaipan-verify-SwPr7d2a91/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-24 23:21:24,305 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_162833b8-5ca8-466d-8283-fa989945e1a7/bin/utaipan-verify-SwPr7d2a91/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-24 23:21:24,315 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-24 23:21:24,316 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-24 23:21:24,316 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-24 23:21:24,317 INFO L130 BoogieDeclarations]: Found specification of procedure aws_linked_list_node_next_is_valid [2023-11-24 23:21:24,317 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_linked_list_node_next_is_valid [2023-11-24 23:21:24,317 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-24 23:21:24,317 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-24 23:21:24,317 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-24 23:21:24,317 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-24 23:21:24,319 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-24 23:21:24,319 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-24 23:21:24,319 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-24 23:21:24,319 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-24 23:21:24,320 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-24 23:21:24,320 INFO L130 BoogieDeclarations]: Found specification of procedure aws_linked_list_node_prev_is_valid [2023-11-24 23:21:24,320 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_linked_list_node_prev_is_valid [2023-11-24 23:21:24,320 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-24 23:21:24,633 INFO L241 CfgBuilder]: Building ICFG [2023-11-24 23:21:24,635 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-24 23:21:24,864 INFO L282 CfgBuilder]: Performing block encoding [2023-11-24 23:21:25,036 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-24 23:21:25,039 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-24 23:21:25,040 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 11:21:25 BoogieIcfgContainer [2023-11-24 23:21:25,041 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-24 23:21:25,043 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-24 23:21:25,044 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-24 23:21:25,048 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-24 23:21:25,049 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 11:21:21" (1/3) ... [2023-11-24 23:21:25,049 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a2b1084 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 11:21:25, skipping insertion in model container [2023-11-24 23:21:25,050 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:21:23" (2/3) ... [2023-11-24 23:21:25,053 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a2b1084 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 11:21:25, skipping insertion in model container [2023-11-24 23:21:25,054 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 11:21:25" (3/3) ... [2023-11-24 23:21:25,055 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_linked_list_next_harness.i [2023-11-24 23:21:25,075 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-24 23:21:25,077 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-24 23:21:25,144 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-24 23:21:25,158 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;@1f21b89c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-24 23:21:25,158 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-24 23:21:25,163 INFO L276 IsEmpty]: Start isEmpty. Operand has 33 states, 15 states have (on average 1.1333333333333333) internal successors, (17), 16 states have internal predecessors, (17), 12 states have call successors, (12), 4 states have call predecessors, (12), 4 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2023-11-24 23:21:25,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-11-24 23:21:25,172 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:21:25,173 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-24 23:21:25,174 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-24 23:21:25,182 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:21:25,182 INFO L85 PathProgramCache]: Analyzing trace with hash 1641023013, now seen corresponding path program 1 times [2023-11-24 23:21:25,192 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-24 23:21:25,193 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1068529902] [2023-11-24 23:21:25,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:21:25,193 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:21:25,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:21:27,423 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-24 23:21:27,424 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-24 23:21:27,424 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1068529902] [2023-11-24 23:21:27,425 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1068529902] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 23:21:27,425 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 23:21:27,425 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-24 23:21:27,427 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1103220477] [2023-11-24 23:21:27,427 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 23:21:27,432 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-24 23:21:27,432 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-24 23:21:27,462 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-24 23:21:27,463 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-11-24 23:21:27,465 INFO L87 Difference]: Start difference. First operand has 33 states, 15 states have (on average 1.1333333333333333) internal successors, (17), 16 states have internal predecessors, (17), 12 states have call successors, (12), 4 states have call predecessors, (12), 4 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) Second operand has 8 states, 5 states have (on average 1.6) internal successors, (8), 6 states have internal predecessors, (8), 3 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-24 23:21:27,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 23:21:27,766 INFO L93 Difference]: Finished difference Result 62 states and 81 transitions. [2023-11-24 23:21:27,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-24 23:21:27,769 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 5 states have (on average 1.6) internal successors, (8), 6 states have internal predecessors, (8), 3 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 15 [2023-11-24 23:21:27,770 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 23:21:27,778 INFO L225 Difference]: With dead ends: 62 [2023-11-24 23:21:27,778 INFO L226 Difference]: Without dead ends: 35 [2023-11-24 23:21:27,783 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2023-11-24 23:21:27,788 INFO L413 NwaCegarLoop]: 26 mSDtfsCounter, 8 mSDsluCounter, 113 mSDsCounter, 0 mSdLazyCounter, 115 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 139 SdHoareTripleChecker+Invalid, 117 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 115 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-24 23:21:27,789 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 139 Invalid, 117 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 115 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-24 23:21:27,807 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2023-11-24 23:21:27,834 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2023-11-24 23:21:27,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 17 states have (on average 1.0588235294117647) internal successors, (18), 18 states have internal predecessors, (18), 12 states have call successors, (12), 5 states have call predecessors, (12), 5 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2023-11-24 23:21:27,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 41 transitions. [2023-11-24 23:21:27,839 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 41 transitions. Word has length 15 [2023-11-24 23:21:27,840 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 23:21:27,840 INFO L495 AbstractCegarLoop]: Abstraction has 35 states and 41 transitions. [2023-11-24 23:21:27,840 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 5 states have (on average 1.6) internal successors, (8), 6 states have internal predecessors, (8), 3 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-24 23:21:27,840 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 41 transitions. [2023-11-24 23:21:27,842 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2023-11-24 23:21:27,842 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:21:27,843 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-24 23:21:27,843 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-24 23:21:27,843 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-24 23:21:27,844 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:21:27,844 INFO L85 PathProgramCache]: Analyzing trace with hash -1604551445, now seen corresponding path program 1 times [2023-11-24 23:21:27,844 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-24 23:21:27,848 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [377832793] [2023-11-24 23:21:27,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:21:27,849 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:21:27,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:21:29,547 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-24 23:21:29,548 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-24 23:21:29,548 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [377832793] [2023-11-24 23:21:29,548 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [377832793] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 23:21:29,548 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 23:21:29,548 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-24 23:21:29,549 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [954559139] [2023-11-24 23:21:29,549 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 23:21:29,550 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-24 23:21:29,550 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-24 23:21:29,551 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-24 23:21:29,551 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2023-11-24 23:21:29,552 INFO L87 Difference]: Start difference. First operand 35 states and 41 transitions. Second operand has 9 states, 6 states have (on average 2.0) internal successors, (12), 7 states have internal predecessors, (12), 4 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2023-11-24 23:21:29,759 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 23:21:29,760 INFO L93 Difference]: Finished difference Result 41 states and 46 transitions. [2023-11-24 23:21:29,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-24 23:21:29,760 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 6 states have (on average 2.0) internal successors, (12), 7 states have internal predecessors, (12), 4 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) Word has length 24 [2023-11-24 23:21:29,761 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 23:21:29,761 INFO L225 Difference]: With dead ends: 41 [2023-11-24 23:21:29,762 INFO L226 Difference]: Without dead ends: 39 [2023-11-24 23:21:29,762 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2023-11-24 23:21:29,763 INFO L413 NwaCegarLoop]: 29 mSDtfsCounter, 8 mSDsluCounter, 123 mSDsCounter, 0 mSdLazyCounter, 106 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 152 SdHoareTripleChecker+Invalid, 111 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 106 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-24 23:21:29,764 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 152 Invalid, 111 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 106 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-24 23:21:29,765 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2023-11-24 23:21:29,775 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2023-11-24 23:21:29,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39 states, 20 states have (on average 1.05) internal successors, (21), 21 states have internal predecessors, (21), 12 states have call successors, (12), 6 states have call predecessors, (12), 6 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2023-11-24 23:21:29,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 44 transitions. [2023-11-24 23:21:29,777 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 44 transitions. Word has length 24 [2023-11-24 23:21:29,777 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 23:21:29,777 INFO L495 AbstractCegarLoop]: Abstraction has 39 states and 44 transitions. [2023-11-24 23:21:29,777 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 6 states have (on average 2.0) internal successors, (12), 7 states have internal predecessors, (12), 4 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2023-11-24 23:21:29,778 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 44 transitions. [2023-11-24 23:21:29,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2023-11-24 23:21:29,779 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:21:29,779 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-24 23:21:29,779 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-24 23:21:29,779 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-24 23:21:29,780 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:21:29,780 INFO L85 PathProgramCache]: Analyzing trace with hash 1133002952, now seen corresponding path program 1 times [2023-11-24 23:21:29,780 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-24 23:21:29,781 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [751939787] [2023-11-24 23:21:29,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:21:29,781 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:21:29,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:21:30,016 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-11-24 23:21:30,016 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-24 23:21:30,017 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [751939787] [2023-11-24 23:21:30,017 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [751939787] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 23:21:30,017 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 23:21:30,017 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-24 23:21:30,018 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [691656956] [2023-11-24 23:21:30,018 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 23:21:30,018 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-24 23:21:30,019 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-24 23:21:30,019 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-24 23:21:30,019 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-24 23:21:30,020 INFO L87 Difference]: Start difference. First operand 39 states and 44 transitions. Second operand has 6 states, 5 states have (on average 2.6) internal successors, (13), 5 states have internal predecessors, (13), 3 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2023-11-24 23:21:30,148 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 23:21:30,148 INFO L93 Difference]: Finished difference Result 45 states and 49 transitions. [2023-11-24 23:21:30,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-24 23:21:30,149 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.6) internal successors, (13), 5 states have internal predecessors, (13), 3 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 30 [2023-11-24 23:21:30,150 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 23:21:30,151 INFO L225 Difference]: With dead ends: 45 [2023-11-24 23:21:30,151 INFO L226 Difference]: Without dead ends: 43 [2023-11-24 23:21:30,152 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-11-24 23:21:30,153 INFO L413 NwaCegarLoop]: 32 mSDtfsCounter, 6 mSDsluCounter, 100 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 132 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-24 23:21:30,153 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 132 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-24 23:21:30,154 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2023-11-24 23:21:30,166 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 43. [2023-11-24 23:21:30,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43 states, 23 states have (on average 1.0434782608695652) internal successors, (24), 24 states have internal predecessors, (24), 12 states have call successors, (12), 7 states have call predecessors, (12), 7 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2023-11-24 23:21:30,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 47 transitions. [2023-11-24 23:21:30,168 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 47 transitions. Word has length 30 [2023-11-24 23:21:30,168 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 23:21:30,169 INFO L495 AbstractCegarLoop]: Abstraction has 43 states and 47 transitions. [2023-11-24 23:21:30,169 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.6) internal successors, (13), 5 states have internal predecessors, (13), 3 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2023-11-24 23:21:30,169 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 47 transitions. [2023-11-24 23:21:30,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2023-11-24 23:21:30,170 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:21:30,171 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-24 23:21:30,171 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-24 23:21:30,171 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-24 23:21:30,172 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:21:30,172 INFO L85 PathProgramCache]: Analyzing trace with hash 1852680502, now seen corresponding path program 1 times [2023-11-24 23:21:30,172 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-24 23:21:30,172 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1274034336] [2023-11-24 23:21:30,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:21:30,173 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:21:30,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:21:31,716 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-11-24 23:21:31,717 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-24 23:21:31,717 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1274034336] [2023-11-24 23:21:31,717 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1274034336] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 23:21:31,717 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 23:21:31,717 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-24 23:21:31,718 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [383513989] [2023-11-24 23:21:31,718 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 23:21:31,718 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-24 23:21:31,718 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-24 23:21:31,719 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-24 23:21:31,719 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-11-24 23:21:31,719 INFO L87 Difference]: Start difference. First operand 43 states and 47 transitions. Second operand has 8 states, 5 states have (on average 3.0) internal successors, (15), 6 states have internal predecessors, (15), 3 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-11-24 23:21:31,965 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 23:21:31,966 INFO L93 Difference]: Finished difference Result 49 states and 52 transitions. [2023-11-24 23:21:31,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-24 23:21:31,966 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 5 states have (on average 3.0) internal successors, (15), 6 states have internal predecessors, (15), 3 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 39 [2023-11-24 23:21:31,967 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 23:21:31,968 INFO L225 Difference]: With dead ends: 49 [2023-11-24 23:21:31,968 INFO L226 Difference]: Without dead ends: 47 [2023-11-24 23:21:31,968 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2023-11-24 23:21:31,969 INFO L413 NwaCegarLoop]: 28 mSDtfsCounter, 10 mSDsluCounter, 88 mSDsCounter, 0 mSdLazyCounter, 109 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 116 SdHoareTripleChecker+Invalid, 111 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 109 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-24 23:21:31,970 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 116 Invalid, 111 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 109 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-24 23:21:31,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2023-11-24 23:21:31,988 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 47. [2023-11-24 23:21:31,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47 states, 26 states have (on average 1.0384615384615385) internal successors, (27), 27 states have internal predecessors, (27), 12 states have call successors, (12), 8 states have call predecessors, (12), 8 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2023-11-24 23:21:31,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 50 transitions. [2023-11-24 23:21:31,994 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 50 transitions. Word has length 39 [2023-11-24 23:21:31,994 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 23:21:31,994 INFO L495 AbstractCegarLoop]: Abstraction has 47 states and 50 transitions. [2023-11-24 23:21:31,995 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 5 states have (on average 3.0) internal successors, (15), 6 states have internal predecessors, (15), 3 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-11-24 23:21:31,997 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 50 transitions. [2023-11-24 23:21:32,001 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2023-11-24 23:21:32,001 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:21:32,002 INFO L195 NwaCegarLoop]: trace histogram [5, 4, 4, 3, 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] [2023-11-24 23:21:32,002 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-24 23:21:32,003 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-24 23:21:32,004 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:21:32,004 INFO L85 PathProgramCache]: Analyzing trace with hash 1531878148, now seen corresponding path program 1 times [2023-11-24 23:21:32,005 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-24 23:21:32,010 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [593822675] [2023-11-24 23:21:32,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:21:32,011 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:21:32,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:21:34,091 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2023-11-24 23:21:34,092 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-24 23:21:34,092 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [593822675] [2023-11-24 23:21:34,092 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [593822675] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 23:21:34,092 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 23:21:34,093 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-11-24 23:21:34,093 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1849036321] [2023-11-24 23:21:34,093 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 23:21:34,095 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-24 23:21:34,095 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-24 23:21:34,095 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-24 23:21:34,096 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2023-11-24 23:21:34,096 INFO L87 Difference]: Start difference. First operand 47 states and 50 transitions. Second operand has 11 states, 8 states have (on average 2.0) internal successors, (16), 9 states have internal predecessors, (16), 6 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (10), 5 states have call predecessors, (10), 5 states have call successors, (10) [2023-11-24 23:21:34,419 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 23:21:34,419 INFO L93 Difference]: Finished difference Result 53 states and 55 transitions. [2023-11-24 23:21:34,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-24 23:21:34,420 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 8 states have (on average 2.0) internal successors, (16), 9 states have internal predecessors, (16), 6 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (10), 5 states have call predecessors, (10), 5 states have call successors, (10) Word has length 48 [2023-11-24 23:21:34,420 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 23:21:34,421 INFO L225 Difference]: With dead ends: 53 [2023-11-24 23:21:34,421 INFO L226 Difference]: Without dead ends: 49 [2023-11-24 23:21:34,421 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2023-11-24 23:21:34,422 INFO L413 NwaCegarLoop]: 29 mSDtfsCounter, 8 mSDsluCounter, 121 mSDsCounter, 0 mSdLazyCounter, 209 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 150 SdHoareTripleChecker+Invalid, 211 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 209 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-24 23:21:34,423 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 150 Invalid, 211 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 209 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-24 23:21:34,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2023-11-24 23:21:34,441 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 49. [2023-11-24 23:21:34,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49 states, 28 states have (on average 1.0) internal successors, (28), 28 states have internal predecessors, (28), 12 states have call successors, (12), 9 states have call predecessors, (12), 8 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2023-11-24 23:21:34,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 51 transitions. [2023-11-24 23:21:34,443 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 51 transitions. Word has length 48 [2023-11-24 23:21:34,444 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 23:21:34,444 INFO L495 AbstractCegarLoop]: Abstraction has 49 states and 51 transitions. [2023-11-24 23:21:34,445 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 8 states have (on average 2.0) internal successors, (16), 9 states have internal predecessors, (16), 6 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (10), 5 states have call predecessors, (10), 5 states have call successors, (10) [2023-11-24 23:21:34,445 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 51 transitions. [2023-11-24 23:21:34,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2023-11-24 23:21:34,446 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:21:34,446 INFO L195 NwaCegarLoop]: trace histogram [6, 5, 5, 3, 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] [2023-11-24 23:21:34,446 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-24 23:21:34,447 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-24 23:21:34,447 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:21:34,447 INFO L85 PathProgramCache]: Analyzing trace with hash -1207331561, now seen corresponding path program 1 times [2023-11-24 23:21:34,447 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-24 23:21:34,448 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1246578594] [2023-11-24 23:21:34,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:21:34,448 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:21:34,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:21:35,354 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2023-11-24 23:21:35,354 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-24 23:21:35,355 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1246578594] [2023-11-24 23:21:35,355 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1246578594] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 23:21:35,355 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 23:21:35,355 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-11-24 23:21:35,355 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [651451238] [2023-11-24 23:21:35,356 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 23:21:35,356 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-24 23:21:35,356 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-24 23:21:35,357 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-24 23:21:35,357 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2023-11-24 23:21:35,357 INFO L87 Difference]: Start difference. First operand 49 states and 51 transitions. Second operand has 10 states, 8 states have (on average 2.0) internal successors, (16), 8 states have internal predecessors, (16), 6 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (11), 4 states have call predecessors, (11), 6 states have call successors, (11) [2023-11-24 23:21:35,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 23:21:35,555 INFO L93 Difference]: Finished difference Result 49 states and 51 transitions. [2023-11-24 23:21:35,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-24 23:21:35,555 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 8 states have (on average 2.0) internal successors, (16), 8 states have internal predecessors, (16), 6 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (11), 4 states have call predecessors, (11), 6 states have call successors, (11) Word has length 54 [2023-11-24 23:21:35,556 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 23:21:35,556 INFO L225 Difference]: With dead ends: 49 [2023-11-24 23:21:35,556 INFO L226 Difference]: Without dead ends: 0 [2023-11-24 23:21:35,557 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2023-11-24 23:21:35,558 INFO L413 NwaCegarLoop]: 29 mSDtfsCounter, 7 mSDsluCounter, 135 mSDsCounter, 0 mSdLazyCounter, 114 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 164 SdHoareTripleChecker+Invalid, 120 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 114 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-24 23:21:35,558 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 164 Invalid, 120 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 114 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-24 23:21:35,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-11-24 23:21:35,559 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-11-24 23:21:35,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 23:21:35,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-11-24 23:21:35,559 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 54 [2023-11-24 23:21:35,559 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 23:21:35,559 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-24 23:21:35,560 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 8 states have (on average 2.0) internal successors, (16), 8 states have internal predecessors, (16), 6 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (11), 4 states have call predecessors, (11), 6 states have call successors, (11) [2023-11-24 23:21:35,560 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-11-24 23:21:35,560 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-24 23:21:35,563 INFO L805 garLoopResultBuilder]: Registering result SAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-24 23:21:35,563 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-24 23:21:35,565 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-11-24 23:21:36,381 INFO L899 garLoopResultBuilder]: For program point aws_linked_list_node_next_is_validEXIT(lines 4717 4721) no Hoare annotation was computed. [2023-11-24 23:21:36,381 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 4717 4721) the Hoare annotation is: true [2023-11-24 23:21:36,381 INFO L899 garLoopResultBuilder]: For program point aws_linked_list_node_prev_is_validEXIT(lines 4728 4732) no Hoare annotation was computed. [2023-11-24 23:21:36,382 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 4728 4732) the Hoare annotation is: true [2023-11-24 23:21:36,382 INFO L899 garLoopResultBuilder]: For program point L7391-1(line 7391) no Hoare annotation was computed. [2023-11-24 23:21:36,382 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-11-24 23:21:36,382 INFO L895 garLoopResultBuilder]: At program point L7391(line 7391) the Hoare annotation is: (let ((.cse1 (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_aws_linked_list_next_harness_~rval~10#1.base|) 8)) (.cse2 (select (select |#memory_$Pointer$.base| |ULTIMATE.start_aws_linked_list_next_harness_~#node~1#1.base|) |ULTIMATE.start_aws_linked_list_next_harness_~#node~1#1.offset|)) (.cse0 (select (select |#memory_$Pointer$.base| |ULTIMATE.start_aws_linked_list_next_harness_~rval~10#1.base|) 8))) (and (= (select (select |#memory_$Pointer$.base| .cse0) .cse1) |ULTIMATE.start_aws_linked_list_next_harness_~rval~10#1.base|) (not (= .cse2 0)) (= |ULTIMATE.start_aws_linked_list_next_harness_~#node~1#1.base| (select (select |#memory_$Pointer$.base| .cse2) 8)) (= (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_aws_linked_list_next_harness_~#node~1#1.base|) |ULTIMATE.start_aws_linked_list_next_harness_~#node~1#1.offset|) 0) (= |ULTIMATE.start_aws_linked_list_next_harness_~rval~10#1.base| |ULTIMATE.start_aws_linked_list_next_harness_~#after~0#1.base|) (= |ULTIMATE.start_aws_linked_list_next_harness_~rval~10#1.offset| 0) (= (select (select |#memory_$Pointer$.offset| .cse0) .cse1) 0) (not (= |ULTIMATE.start_aws_linked_list_next_harness_~rval~10#1.base| 0)) (= |ULTIMATE.start_aws_linked_list_next_harness_~#after~0#1.offset| 0) (not (= |ULTIMATE.start_aws_linked_list_next_harness_~#node~1#1.base| |ULTIMATE.start_aws_linked_list_next_harness_~#after~0#1.base|)) (not (= |ULTIMATE.start_aws_linked_list_next_harness_~#node~1#1.base| 0)) (= (select (select |#memory_$Pointer$.offset| .cse2) 8) |ULTIMATE.start_aws_linked_list_next_harness_~#node~1#1.offset|) (= |ULTIMATE.start_aws_linked_list_next_harness_~#node~1#1.base| .cse0))) [2023-11-24 23:21:36,383 INFO L899 garLoopResultBuilder]: For program point L7389-2(line 7389) no Hoare annotation was computed. [2023-11-24 23:21:36,383 INFO L895 garLoopResultBuilder]: At program point L7389-1(line 7389) the Hoare annotation is: (let ((.cse1 (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_aws_linked_list_next_harness_~rval~10#1.base|) 8)) (.cse2 (select (select |#memory_$Pointer$.base| |ULTIMATE.start_aws_linked_list_next_harness_~#node~1#1.base|) |ULTIMATE.start_aws_linked_list_next_harness_~#node~1#1.offset|)) (.cse0 (select (select |#memory_$Pointer$.base| |ULTIMATE.start_aws_linked_list_next_harness_~rval~10#1.base|) 8))) (and (= (select (select |#memory_$Pointer$.base| .cse0) .cse1) |ULTIMATE.start_aws_linked_list_next_harness_~rval~10#1.base|) (not (= .cse2 0)) (= |ULTIMATE.start_aws_linked_list_next_harness_~#node~1#1.base| (select (select |#memory_$Pointer$.base| .cse2) 8)) (= (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_aws_linked_list_next_harness_~#node~1#1.base|) |ULTIMATE.start_aws_linked_list_next_harness_~#node~1#1.offset|) 0) (= |ULTIMATE.start_aws_linked_list_next_harness_~rval~10#1.base| |ULTIMATE.start_aws_linked_list_next_harness_~#after~0#1.base|) (= |ULTIMATE.start_aws_linked_list_next_harness_~rval~10#1.offset| 0) (= (select (select |#memory_$Pointer$.offset| .cse0) .cse1) 0) (not (= |ULTIMATE.start_aws_linked_list_next_harness_~rval~10#1.base| 0)) (= |ULTIMATE.start_aws_linked_list_next_harness_~#after~0#1.offset| 0) (not (= |ULTIMATE.start_aws_linked_list_next_harness_~#node~1#1.base| |ULTIMATE.start_aws_linked_list_next_harness_~#after~0#1.base|)) (not (= |ULTIMATE.start_aws_linked_list_next_harness_~#node~1#1.base| 0)) (= |ULTIMATE.start_aws_linked_list_next_harness_#t~ret680#1| 1) (= (select (select |#memory_$Pointer$.offset| .cse2) 8) |ULTIMATE.start_aws_linked_list_next_harness_~#node~1#1.offset|) (= |ULTIMATE.start_aws_linked_list_next_harness_~#node~1#1.base| .cse0))) [2023-11-24 23:21:36,384 INFO L895 garLoopResultBuilder]: At program point L7389(line 7389) the Hoare annotation is: (let ((.cse1 (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_aws_linked_list_next_harness_~rval~10#1.base|) 8)) (.cse2 (select (select |#memory_$Pointer$.base| |ULTIMATE.start_aws_linked_list_next_harness_~#node~1#1.base|) |ULTIMATE.start_aws_linked_list_next_harness_~#node~1#1.offset|)) (.cse0 (select (select |#memory_$Pointer$.base| |ULTIMATE.start_aws_linked_list_next_harness_~rval~10#1.base|) 8))) (and (= (select (select |#memory_$Pointer$.base| .cse0) .cse1) |ULTIMATE.start_aws_linked_list_next_harness_~rval~10#1.base|) (not (= .cse2 0)) (= |ULTIMATE.start_aws_linked_list_next_harness_~#node~1#1.base| (select (select |#memory_$Pointer$.base| .cse2) 8)) (= (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_aws_linked_list_next_harness_~#node~1#1.base|) |ULTIMATE.start_aws_linked_list_next_harness_~#node~1#1.offset|) 0) (= |ULTIMATE.start_aws_linked_list_next_harness_~rval~10#1.base| |ULTIMATE.start_aws_linked_list_next_harness_~#after~0#1.base|) (= |ULTIMATE.start_aws_linked_list_next_harness_~rval~10#1.offset| 0) (= (select (select |#memory_$Pointer$.offset| .cse0) .cse1) 0) (not (= |ULTIMATE.start_aws_linked_list_next_harness_~rval~10#1.base| 0)) (= |ULTIMATE.start_aws_linked_list_next_harness_~#after~0#1.offset| 0) (not (= |ULTIMATE.start_aws_linked_list_next_harness_~#node~1#1.base| |ULTIMATE.start_aws_linked_list_next_harness_~#after~0#1.base|)) (not (= |ULTIMATE.start_aws_linked_list_next_harness_~#node~1#1.base| 0)) (= (select (select |#memory_$Pointer$.offset| .cse2) 8) |ULTIMATE.start_aws_linked_list_next_harness_~#node~1#1.offset|) (= |ULTIMATE.start_aws_linked_list_next_harness_~#node~1#1.base| .cse0))) [2023-11-24 23:21:36,384 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-11-24 23:21:36,384 INFO L895 garLoopResultBuilder]: At program point L4840-1(line 4840) the Hoare annotation is: (let ((.cse0 (select (select |#memory_$Pointer$.base| |ULTIMATE.start_aws_linked_list_next_~node#1.base|) 0)) (.cse1 (select (select |#memory_$Pointer$.base| |ULTIMATE.start_aws_linked_list_next_~rval~4#1.base|) 8))) (and (= |ULTIMATE.start_aws_linked_list_next_~rval~4#1.offset| 0) (= |ULTIMATE.start_aws_linked_list_next_~node#1.offset| 0) (= |ULTIMATE.start_aws_linked_list_next_harness_~#node~1#1.offset| 0) (= .cse0 |ULTIMATE.start_aws_linked_list_next_~rval~4#1.base|) (= |ULTIMATE.start_aws_linked_list_next_harness_~#after~0#1.offset| 0) (not (= |ULTIMATE.start_aws_linked_list_next_~rval~4#1.base| 0)) (= .cse0 |ULTIMATE.start_aws_linked_list_next_harness_~#after~0#1.base|) (not (= |ULTIMATE.start_aws_linked_list_next_harness_~#node~1#1.base| |ULTIMATE.start_aws_linked_list_next_harness_~#after~0#1.base|)) (= |ULTIMATE.start_aws_linked_list_next_#t~ret339#1| 1) (not (= |ULTIMATE.start_aws_linked_list_next_harness_~#node~1#1.base| 0)) (= .cse1 |ULTIMATE.start_aws_linked_list_next_harness_~#node~1#1.base|) (= (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_aws_linked_list_next_~node#1.base|) 0) 0) (= (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_aws_linked_list_next_harness_~#node~1#1.base|) 0)) 8) 0) (= .cse1 |ULTIMATE.start_aws_linked_list_next_~node#1.base|))) [2023-11-24 23:21:36,384 INFO L899 garLoopResultBuilder]: For program point L4840-2(line 4840) no Hoare annotation was computed. [2023-11-24 23:21:36,385 INFO L895 garLoopResultBuilder]: At program point L4840(line 4840) the Hoare annotation is: (let ((.cse0 (select (select |#memory_$Pointer$.base| |ULTIMATE.start_aws_linked_list_next_~node#1.base|) 0)) (.cse1 (select (select |#memory_$Pointer$.base| |ULTIMATE.start_aws_linked_list_next_~rval~4#1.base|) 8))) (and (= |ULTIMATE.start_aws_linked_list_next_~rval~4#1.offset| 0) (= |ULTIMATE.start_aws_linked_list_next_~node#1.offset| 0) (= |ULTIMATE.start_aws_linked_list_next_harness_~#node~1#1.offset| 0) (= .cse0 |ULTIMATE.start_aws_linked_list_next_~rval~4#1.base|) (= |ULTIMATE.start_aws_linked_list_next_harness_~#after~0#1.offset| 0) (not (= |ULTIMATE.start_aws_linked_list_next_~rval~4#1.base| 0)) (= .cse0 |ULTIMATE.start_aws_linked_list_next_harness_~#after~0#1.base|) (not (= |ULTIMATE.start_aws_linked_list_next_harness_~#node~1#1.base| |ULTIMATE.start_aws_linked_list_next_harness_~#after~0#1.base|)) (not (= |ULTIMATE.start_aws_linked_list_next_harness_~#node~1#1.base| 0)) (= .cse1 |ULTIMATE.start_aws_linked_list_next_harness_~#node~1#1.base|) (= (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_aws_linked_list_next_~node#1.base|) 0) 0) (= (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_aws_linked_list_next_harness_~#node~1#1.base|) 0)) 8) 0) (= .cse1 |ULTIMATE.start_aws_linked_list_next_~node#1.base|))) [2023-11-24 23:21:36,385 INFO L895 garLoopResultBuilder]: At program point L7390(line 7390) the Hoare annotation is: (let ((.cse1 (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_aws_linked_list_next_harness_~rval~10#1.base|) 8)) (.cse2 (select (select |#memory_$Pointer$.base| |ULTIMATE.start_aws_linked_list_next_harness_~#node~1#1.base|) |ULTIMATE.start_aws_linked_list_next_harness_~#node~1#1.offset|)) (.cse0 (select (select |#memory_$Pointer$.base| |ULTIMATE.start_aws_linked_list_next_harness_~rval~10#1.base|) 8))) (and (= (select (select |#memory_$Pointer$.base| .cse0) .cse1) |ULTIMATE.start_aws_linked_list_next_harness_~rval~10#1.base|) (not (= .cse2 0)) (= |ULTIMATE.start_aws_linked_list_next_harness_~#node~1#1.base| (select (select |#memory_$Pointer$.base| .cse2) 8)) (= (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_aws_linked_list_next_harness_~#node~1#1.base|) |ULTIMATE.start_aws_linked_list_next_harness_~#node~1#1.offset|) 0) (= |ULTIMATE.start_aws_linked_list_next_harness_~rval~10#1.base| |ULTIMATE.start_aws_linked_list_next_harness_~#after~0#1.base|) (= |ULTIMATE.start_aws_linked_list_next_harness_~rval~10#1.offset| 0) (= (select (select |#memory_$Pointer$.offset| .cse0) .cse1) 0) (not (= |ULTIMATE.start_aws_linked_list_next_harness_~rval~10#1.base| 0)) (= |ULTIMATE.start_aws_linked_list_next_harness_~#after~0#1.offset| 0) (not (= |ULTIMATE.start_aws_linked_list_next_harness_~#node~1#1.base| |ULTIMATE.start_aws_linked_list_next_harness_~#after~0#1.base|)) (not (= |ULTIMATE.start_aws_linked_list_next_harness_~#node~1#1.base| 0)) (= (select (select |#memory_$Pointer$.offset| .cse2) 8) |ULTIMATE.start_aws_linked_list_next_harness_~#node~1#1.offset|) (= |ULTIMATE.start_aws_linked_list_next_harness_~#node~1#1.base| .cse0))) [2023-11-24 23:21:36,385 INFO L899 garLoopResultBuilder]: For program point L7390-2(line 7390) no Hoare annotation was computed. [2023-11-24 23:21:36,386 INFO L895 garLoopResultBuilder]: At program point L7390-1(line 7390) the Hoare annotation is: (let ((.cse1 (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_aws_linked_list_next_harness_~rval~10#1.base|) 8)) (.cse2 (select (select |#memory_$Pointer$.base| |ULTIMATE.start_aws_linked_list_next_harness_~#node~1#1.base|) |ULTIMATE.start_aws_linked_list_next_harness_~#node~1#1.offset|)) (.cse0 (select (select |#memory_$Pointer$.base| |ULTIMATE.start_aws_linked_list_next_harness_~rval~10#1.base|) 8))) (and (= (select (select |#memory_$Pointer$.base| .cse0) .cse1) |ULTIMATE.start_aws_linked_list_next_harness_~rval~10#1.base|) (not (= .cse2 0)) (= |ULTIMATE.start_aws_linked_list_next_harness_~#node~1#1.base| (select (select |#memory_$Pointer$.base| .cse2) 8)) (= (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_aws_linked_list_next_harness_~#node~1#1.base|) |ULTIMATE.start_aws_linked_list_next_harness_~#node~1#1.offset|) 0) (= |ULTIMATE.start_aws_linked_list_next_harness_~rval~10#1.base| |ULTIMATE.start_aws_linked_list_next_harness_~#after~0#1.base|) (= |ULTIMATE.start_aws_linked_list_next_harness_~rval~10#1.offset| 0) (= (select (select |#memory_$Pointer$.offset| .cse0) .cse1) 0) (not (= |ULTIMATE.start_aws_linked_list_next_harness_~rval~10#1.base| 0)) (= |ULTIMATE.start_aws_linked_list_next_harness_~#after~0#1.offset| 0) (not (= |ULTIMATE.start_aws_linked_list_next_harness_~#node~1#1.base| |ULTIMATE.start_aws_linked_list_next_harness_~#after~0#1.base|)) (not (= |ULTIMATE.start_aws_linked_list_next_harness_~#node~1#1.base| 0)) (= |ULTIMATE.start_aws_linked_list_next_harness_#t~ret681#1| 1) (= (select (select |#memory_$Pointer$.offset| .cse2) 8) |ULTIMATE.start_aws_linked_list_next_harness_~#node~1#1.offset|) (= |ULTIMATE.start_aws_linked_list_next_harness_~#node~1#1.base| .cse0))) [2023-11-24 23:21:36,386 INFO L895 garLoopResultBuilder]: At program point L4839(line 4839) the Hoare annotation is: (let ((.cse0 (select (select |#memory_$Pointer$.base| |ULTIMATE.start_aws_linked_list_next_~node#1.base|) 0)) (.cse1 (select (select |#memory_$Pointer$.base| |ULTIMATE.start_aws_linked_list_next_~rval~4#1.base|) 8))) (and (= |ULTIMATE.start_aws_linked_list_next_~rval~4#1.offset| 0) (= |ULTIMATE.start_aws_linked_list_next_~node#1.offset| 0) (= |ULTIMATE.start_aws_linked_list_next_harness_~#node~1#1.offset| 0) (= .cse0 |ULTIMATE.start_aws_linked_list_next_~rval~4#1.base|) (= |ULTIMATE.start_aws_linked_list_next_harness_~#after~0#1.offset| 0) (not (= |ULTIMATE.start_aws_linked_list_next_~rval~4#1.base| 0)) (= .cse0 |ULTIMATE.start_aws_linked_list_next_harness_~#after~0#1.base|) (not (= |ULTIMATE.start_aws_linked_list_next_harness_~#node~1#1.base| |ULTIMATE.start_aws_linked_list_next_harness_~#after~0#1.base|)) (not (= |ULTIMATE.start_aws_linked_list_next_harness_~#node~1#1.base| 0)) (= .cse1 |ULTIMATE.start_aws_linked_list_next_harness_~#node~1#1.base|) (= (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_aws_linked_list_next_~node#1.base|) 0) 0) (= (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_aws_linked_list_next_harness_~#node~1#1.base|) 0)) 8) 0) (= .cse1 |ULTIMATE.start_aws_linked_list_next_~node#1.base|))) [2023-11-24 23:21:36,387 INFO L895 garLoopResultBuilder]: At program point L4839-1(line 4839) the Hoare annotation is: (let ((.cse0 (select (select |#memory_$Pointer$.base| |ULTIMATE.start_aws_linked_list_next_~node#1.base|) 0)) (.cse1 (select (select |#memory_$Pointer$.base| |ULTIMATE.start_aws_linked_list_next_~rval~4#1.base|) 8))) (and (= |ULTIMATE.start_aws_linked_list_next_~rval~4#1.offset| 0) (= |ULTIMATE.start_aws_linked_list_next_~node#1.offset| 0) (= |ULTIMATE.start_aws_linked_list_next_harness_~#node~1#1.offset| 0) (= .cse0 |ULTIMATE.start_aws_linked_list_next_~rval~4#1.base|) (= |ULTIMATE.start_aws_linked_list_next_harness_~#after~0#1.offset| 0) (not (= |ULTIMATE.start_aws_linked_list_next_~rval~4#1.base| 0)) (= |ULTIMATE.start_aws_linked_list_next_#t~ret338#1| 1) (= .cse0 |ULTIMATE.start_aws_linked_list_next_harness_~#after~0#1.base|) (not (= |ULTIMATE.start_aws_linked_list_next_harness_~#node~1#1.base| |ULTIMATE.start_aws_linked_list_next_harness_~#after~0#1.base|)) (not (= |ULTIMATE.start_aws_linked_list_next_harness_~#node~1#1.base| 0)) (= .cse1 |ULTIMATE.start_aws_linked_list_next_harness_~#node~1#1.base|) (= (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_aws_linked_list_next_~node#1.base|) 0) 0) (= (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_aws_linked_list_next_harness_~#node~1#1.base|) 0)) 8) 0) (= .cse1 |ULTIMATE.start_aws_linked_list_next_~node#1.base|))) [2023-11-24 23:21:36,387 INFO L895 garLoopResultBuilder]: At program point L4841(line 4841) the Hoare annotation is: (let ((.cse0 (select (select |#memory_$Pointer$.base| |ULTIMATE.start_aws_linked_list_next_~node#1.base|) 0)) (.cse1 (select (select |#memory_$Pointer$.base| |ULTIMATE.start_aws_linked_list_next_~rval~4#1.base|) 8))) (and (= |ULTIMATE.start_aws_linked_list_next_#t~mem340#1.base| |ULTIMATE.start_aws_linked_list_next_~rval~4#1.base|) (= |ULTIMATE.start_aws_linked_list_next_~rval~4#1.offset| 0) (= |ULTIMATE.start_aws_linked_list_next_~node#1.offset| 0) (= |ULTIMATE.start_aws_linked_list_next_harness_~#node~1#1.offset| 0) (= .cse0 |ULTIMATE.start_aws_linked_list_next_~rval~4#1.base|) (= |ULTIMATE.start_aws_linked_list_next_#t~mem340#1.offset| 0) (= |ULTIMATE.start_aws_linked_list_next_harness_~#after~0#1.offset| 0) (not (= |ULTIMATE.start_aws_linked_list_next_~rval~4#1.base| 0)) (= .cse0 |ULTIMATE.start_aws_linked_list_next_harness_~#after~0#1.base|) (not (= |ULTIMATE.start_aws_linked_list_next_harness_~#node~1#1.base| |ULTIMATE.start_aws_linked_list_next_harness_~#after~0#1.base|)) (not (= |ULTIMATE.start_aws_linked_list_next_harness_~#node~1#1.base| 0)) (= .cse1 |ULTIMATE.start_aws_linked_list_next_harness_~#node~1#1.base|) (= (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_aws_linked_list_next_~node#1.base|) 0) 0) (= (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_aws_linked_list_next_harness_~#node~1#1.base|) 0)) 8) 0) (= .cse1 |ULTIMATE.start_aws_linked_list_next_~node#1.base|))) [2023-11-24 23:21:36,387 INFO L899 garLoopResultBuilder]: For program point L4841-1(line 4841) no Hoare annotation was computed. [2023-11-24 23:21:36,387 INFO L899 garLoopResultBuilder]: For program point L4837-2(line 4837) no Hoare annotation was computed. [2023-11-24 23:21:36,388 INFO L895 garLoopResultBuilder]: At program point L4837(line 4837) the Hoare annotation is: (let ((.cse2 (select (select |#memory_$Pointer$.base| |ULTIMATE.start_aws_linked_list_next_~node#1.base|) 0))) (let ((.cse0 (select (select |#memory_$Pointer$.base| .cse2) 8)) (.cse1 (select (select |#memory_$Pointer$.base| |ULTIMATE.start_aws_linked_list_next_harness_~#node~1#1.base|) 0))) (and (= |ULTIMATE.start_aws_linked_list_next_~node#1.offset| 0) (= |ULTIMATE.start_aws_linked_list_next_harness_~#node~1#1.offset| 0) (= .cse0 |ULTIMATE.start_aws_linked_list_next_~node#1.base|) (= |ULTIMATE.start_aws_linked_list_next_harness_~#after~0#1.offset| 0) (not (= .cse1 0)) (= .cse0 |ULTIMATE.start_aws_linked_list_next_harness_~#node~1#1.base|) (= .cse2 |ULTIMATE.start_aws_linked_list_next_harness_~#after~0#1.base|) (not (= |ULTIMATE.start_aws_linked_list_next_harness_~#node~1#1.base| |ULTIMATE.start_aws_linked_list_next_harness_~#after~0#1.base|)) (not (= |ULTIMATE.start_aws_linked_list_next_harness_~#node~1#1.base| 0)) (= (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_aws_linked_list_next_~node#1.base|) 0) 0) (= (select (select |#memory_$Pointer$.offset| .cse1) 8) 0)))) [2023-11-24 23:21:36,388 INFO L899 garLoopResultBuilder]: For program point L4839-2(line 4839) no Hoare annotation was computed. [2023-11-24 23:21:36,388 INFO L895 garLoopResultBuilder]: At program point L4837-1(line 4837) the Hoare annotation is: (let ((.cse2 (select (select |#memory_$Pointer$.base| |ULTIMATE.start_aws_linked_list_next_~node#1.base|) 0))) (let ((.cse0 (select (select |#memory_$Pointer$.base| .cse2) 8)) (.cse1 (select (select |#memory_$Pointer$.base| |ULTIMATE.start_aws_linked_list_next_harness_~#node~1#1.base|) 0))) (and (= |ULTIMATE.start_aws_linked_list_next_~node#1.offset| 0) (= |ULTIMATE.start_aws_linked_list_next_harness_~#node~1#1.offset| 0) (= .cse0 |ULTIMATE.start_aws_linked_list_next_~node#1.base|) (= |ULTIMATE.start_aws_linked_list_next_harness_~#after~0#1.offset| 0) (not (= .cse1 0)) (= .cse0 |ULTIMATE.start_aws_linked_list_next_harness_~#node~1#1.base|) (= .cse2 |ULTIMATE.start_aws_linked_list_next_harness_~#after~0#1.base|) (not (= |ULTIMATE.start_aws_linked_list_next_harness_~#node~1#1.base| |ULTIMATE.start_aws_linked_list_next_harness_~#after~0#1.base|)) (not (= |ULTIMATE.start_aws_linked_list_next_harness_~#node~1#1.base| 0)) (= (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_aws_linked_list_next_~node#1.base|) 0) 0) (= (select (select |#memory_$Pointer$.offset| .cse1) 8) 0)))) [2023-11-24 23:21:36,388 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 210 212) the Hoare annotation is: true [2023-11-24 23:21:36,388 INFO L899 garLoopResultBuilder]: For program point assume_abort_if_notEXIT(lines 210 212) no Hoare annotation was computed. [2023-11-24 23:21:36,389 INFO L899 garLoopResultBuilder]: For program point L223(line 223) no Hoare annotation was computed. [2023-11-24 23:21:36,389 INFO L899 garLoopResultBuilder]: For program point L223-1(line 223) no Hoare annotation was computed. [2023-11-24 23:21:36,389 INFO L899 garLoopResultBuilder]: For program point L223-3(lines 222 224) no Hoare annotation was computed. [2023-11-24 23:21:36,389 INFO L899 garLoopResultBuilder]: For program point __VERIFIER_assertEXIT(lines 222 224) no Hoare annotation was computed. [2023-11-24 23:21:36,395 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 222 224) the Hoare annotation is: true [2023-11-24 23:21:36,395 INFO L899 garLoopResultBuilder]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 223) no Hoare annotation was computed. [2023-11-24 23:21:36,400 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2023-11-24 23:21:36,406 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-24 23:21:36,412 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.11 11:21:36 BoogieIcfgContainer [2023-11-24 23:21:36,412 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-24 23:21:36,413 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-24 23:21:36,413 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-24 23:21:36,413 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-24 23:21:36,413 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 11:21:25" (3/4) ... [2023-11-24 23:21:36,416 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-24 23:21:36,419 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure aws_linked_list_node_next_is_valid [2023-11-24 23:21:36,420 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure aws_linked_list_node_prev_is_valid [2023-11-24 23:21:36,420 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2023-11-24 23:21:36,421 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2023-11-24 23:21:36,428 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 29 nodes and edges [2023-11-24 23:21:36,429 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2023-11-24 23:21:36,429 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-24 23:21:36,429 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-24 23:21:36,548 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_162833b8-5ca8-466d-8283-fa989945e1a7/bin/utaipan-verify-SwPr7d2a91/witness.graphml [2023-11-24 23:21:36,549 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_162833b8-5ca8-466d-8283-fa989945e1a7/bin/utaipan-verify-SwPr7d2a91/witness.yml [2023-11-24 23:21:36,549 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-24 23:21:36,550 INFO L158 Benchmark]: Toolchain (without parser) took 15305.52ms. Allocated memory was 134.2MB in the beginning and 383.8MB in the end (delta: 249.6MB). Free memory was 87.7MB in the beginning and 120.3MB in the end (delta: -32.6MB). Peak memory consumption was 219.0MB. Max. memory is 16.1GB. [2023-11-24 23:21:36,550 INFO L158 Benchmark]: CDTParser took 0.25ms. Allocated memory is still 111.1MB. Free memory is still 84.5MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-24 23:21:36,551 INFO L158 Benchmark]: CACSL2BoogieTranslator took 2718.62ms. Allocated memory was 134.2MB in the beginning and 167.8MB in the end (delta: 33.6MB). Free memory was 87.2MB in the beginning and 120.4MB in the end (delta: -33.2MB). Peak memory consumption was 62.7MB. Max. memory is 16.1GB. [2023-11-24 23:21:36,551 INFO L158 Benchmark]: Boogie Procedure Inliner took 151.05ms. Allocated memory is still 167.8MB. Free memory was 120.4MB in the beginning and 115.3MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-24 23:21:36,551 INFO L158 Benchmark]: Boogie Preprocessor took 91.55ms. Allocated memory is still 167.8MB. Free memory was 115.3MB in the beginning and 113.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-24 23:21:36,552 INFO L158 Benchmark]: RCFGBuilder took 831.98ms. Allocated memory is still 167.8MB. Free memory was 113.2MB in the beginning and 84.8MB in the end (delta: 28.4MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. [2023-11-24 23:21:36,552 INFO L158 Benchmark]: TraceAbstraction took 11369.25ms. Allocated memory was 167.8MB in the beginning and 383.8MB in the end (delta: 216.0MB). Free memory was 83.8MB in the beginning and 125.6MB in the end (delta: -41.8MB). Peak memory consumption was 175.2MB. Max. memory is 16.1GB. [2023-11-24 23:21:36,553 INFO L158 Benchmark]: Witness Printer took 136.35ms. Allocated memory is still 383.8MB. Free memory was 125.6MB in the beginning and 120.3MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-24 23:21:36,556 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25ms. Allocated memory is still 111.1MB. Free memory is still 84.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 2718.62ms. Allocated memory was 134.2MB in the beginning and 167.8MB in the end (delta: 33.6MB). Free memory was 87.2MB in the beginning and 120.4MB in the end (delta: -33.2MB). Peak memory consumption was 62.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 151.05ms. Allocated memory is still 167.8MB. Free memory was 120.4MB in the beginning and 115.3MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 91.55ms. Allocated memory is still 167.8MB. Free memory was 115.3MB in the beginning and 113.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 831.98ms. Allocated memory is still 167.8MB. Free memory was 113.2MB in the beginning and 84.8MB in the end (delta: 28.4MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. * TraceAbstraction took 11369.25ms. Allocated memory was 167.8MB in the beginning and 383.8MB in the end (delta: 216.0MB). Free memory was 83.8MB in the beginning and 125.6MB in the end (delta: -41.8MB). Peak memory consumption was 175.2MB. Max. memory is 16.1GB. * Witness Printer took 136.35ms. Allocated memory is still 383.8MB. Free memory was 125.6MB in the beginning and 120.3MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 223]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 33 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 11.3s, OverallIterations: 6, TraceHistogramMax: 6, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.8s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 77 SdHoareTripleChecker+Valid, 1.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 47 mSDsluCounter, 853 SdHoareTripleChecker+Invalid, 0.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 680 mSDsCounter, 19 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 709 IncrementalHoareTripleChecker+Invalid, 728 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 19 mSolverCounterUnsat, 173 mSDtfsCounter, 709 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 71 GetRequests, 18 SyntacticMatches, 1 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=49occurred in iteration=5, InterpolantAutomatonStates: 45, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 6 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 16 LocationsWithAnnotation, 32 PreInvPairs, 40 NumberOfFragments, 1003 HoareAnnotationTreeSize, 32 FomulaSimplifications, 235 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 16 FomulaSimplificationsInter, 517 FormulaSimplificationTreeSizeReductionInter, 0.7s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 7.9s InterpolantComputationTime, 210 NumberOfCodeBlocks, 210 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 204 ConstructedInterpolants, 0 QuantifiedInterpolants, 2480 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 138/138 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-11-24 23:21:36,588 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_162833b8-5ca8-466d-8283-fa989945e1a7/bin/utaipan-verify-SwPr7d2a91/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE