./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 cf1a7837 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_8807c1bb-6dff-446a-b72a-00f2c3d4ebe8/bin/utaipan-verify-NcY6lQBIFX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8807c1bb-6dff-446a-b72a-00f2c3d4ebe8/bin/utaipan-verify-NcY6lQBIFX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8807c1bb-6dff-446a-b72a-00f2c3d4ebe8/bin/utaipan-verify-NcY6lQBIFX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8807c1bb-6dff-446a-b72a-00f2c3d4ebe8/bin/utaipan-verify-NcY6lQBIFX/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_8807c1bb-6dff-446a-b72a-00f2c3d4ebe8/bin/utaipan-verify-NcY6lQBIFX/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8807c1bb-6dff-446a-b72a-00f2c3d4ebe8/bin/utaipan-verify-NcY6lQBIFX --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 0.2.3-dev-cf1a783 [2023-11-12 01:04:04,467 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 01:04:04,587 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8807c1bb-6dff-446a-b72a-00f2c3d4ebe8/bin/utaipan-verify-NcY6lQBIFX/config/svcomp-Reach-64bit-Taipan_Default.epf [2023-11-12 01:04:04,600 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 01:04:04,601 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 01:04:04,641 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 01:04:04,642 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 01:04:04,642 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 01:04:04,643 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 01:04:04,644 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 01:04:04,644 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-12 01:04:04,645 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-12 01:04:04,646 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-12 01:04:04,646 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-12 01:04:04,647 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-12 01:04:04,648 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-12 01:04:04,648 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-12 01:04:04,649 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-12 01:04:04,649 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-12 01:04:04,650 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-12 01:04:04,651 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-12 01:04:04,652 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-12 01:04:04,653 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 01:04:04,653 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-12 01:04:04,654 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-12 01:04:04,654 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 01:04:04,655 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-12 01:04:04,656 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 01:04:04,656 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-12 01:04:04,657 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-12 01:04:04,658 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 01:04:04,658 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 01:04:04,659 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 01:04:04,659 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 01:04:04,660 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 01:04:04,661 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 01:04:04,661 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-12 01:04:04,662 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-12 01:04:04,663 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-12 01:04:04,663 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-12 01:04:04,664 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-12 01:04:04,665 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 01:04:04,665 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_8807c1bb-6dff-446a-b72a-00f2c3d4ebe8/bin/utaipan-verify-NcY6lQBIFX/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8807c1bb-6dff-446a-b72a-00f2c3d4ebe8/bin/utaipan-verify-NcY6lQBIFX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5bb1e95e9d6379d31cbb3e207d6fe85ddf495edebf9b764e927537f63dbf829e [2023-11-12 01:04:05,051 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 01:04:05,080 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 01:04:05,083 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 01:04:05,087 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 01:04:05,087 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 01:04:05,089 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8807c1bb-6dff-446a-b72a-00f2c3d4ebe8/bin/utaipan-verify-NcY6lQBIFX/../../sv-benchmarks/c/aws-c-common/aws_linked_list_next_harness.i [2023-11-12 01:04:08,202 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 01:04:08,853 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 01:04:08,854 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8807c1bb-6dff-446a-b72a-00f2c3d4ebe8/sv-benchmarks/c/aws-c-common/aws_linked_list_next_harness.i [2023-11-12 01:04:08,898 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8807c1bb-6dff-446a-b72a-00f2c3d4ebe8/bin/utaipan-verify-NcY6lQBIFX/data/47a176c63/b8f6eda157d445ddb7884ce108526bfc/FLAG905e747b1 [2023-11-12 01:04:08,919 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8807c1bb-6dff-446a-b72a-00f2c3d4ebe8/bin/utaipan-verify-NcY6lQBIFX/data/47a176c63/b8f6eda157d445ddb7884ce108526bfc [2023-11-12 01:04:08,925 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 01:04:08,927 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 01:04:08,929 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 01:04:08,929 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 01:04:08,935 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 01:04:08,936 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 01:04:08" (1/1) ... [2023-11-12 01:04:08,937 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1aa89c2b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:04:08, skipping insertion in model container [2023-11-12 01:04:08,937 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 01:04:08" (1/1) ... [2023-11-12 01:04:09,055 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 01:04:09,377 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_8807c1bb-6dff-446a-b72a-00f2c3d4ebe8/sv-benchmarks/c/aws-c-common/aws_linked_list_next_harness.i[4494,4507] [2023-11-12 01:04:09,386 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_8807c1bb-6dff-446a-b72a-00f2c3d4ebe8/sv-benchmarks/c/aws-c-common/aws_linked_list_next_harness.i[4554,4567] [2023-11-12 01:04:10,475 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 01:04:10,480 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 01:04:10,483 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 01:04:10,485 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 01:04:10,487 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 01:04:10,508 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 01:04:10,509 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 01:04:10,514 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 01:04:10,516 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 01:04:10,522 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 01:04:10,524 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 01:04:10,528 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 01:04:10,529 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 01:04:10,955 WARN L635 FunctionHandler]: implicit declaration of function __atomic_load_n [2023-11-12 01:04:10,957 WARN L635 FunctionHandler]: implicit declaration of function __atomic_store_n [2023-11-12 01:04:10,958 WARN L635 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2023-11-12 01:04:10,960 WARN L635 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2023-11-12 01:04:10,962 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2023-11-12 01:04:10,963 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2023-11-12 01:04:10,964 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2023-11-12 01:04:10,965 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2023-11-12 01:04:10,966 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2023-11-12 01:04:10,967 WARN L635 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2023-11-12 01:04:11,186 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 01:04:11,210 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 01:04:11,223 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_8807c1bb-6dff-446a-b72a-00f2c3d4ebe8/sv-benchmarks/c/aws-c-common/aws_linked_list_next_harness.i[4494,4507] [2023-11-12 01:04:11,224 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_8807c1bb-6dff-446a-b72a-00f2c3d4ebe8/sv-benchmarks/c/aws-c-common/aws_linked_list_next_harness.i[4554,4567] [2023-11-12 01:04:11,276 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 01:04:11,277 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 01:04:11,278 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 01:04:11,278 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 01:04:11,279 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 01:04:11,291 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 01:04:11,292 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 01:04:11,293 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 01:04:11,294 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 01:04:11,295 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 01:04:11,296 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 01:04:11,297 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 01:04:11,297 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 01:04:11,340 WARN L635 FunctionHandler]: implicit declaration of function __atomic_load_n [2023-11-12 01:04:11,341 WARN L635 FunctionHandler]: implicit declaration of function __atomic_store_n [2023-11-12 01:04:11,342 WARN L635 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2023-11-12 01:04:11,344 WARN L635 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2023-11-12 01:04:11,345 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2023-11-12 01:04:11,346 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2023-11-12 01:04:11,347 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2023-11-12 01:04:11,347 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2023-11-12 01:04:11,348 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2023-11-12 01:04:11,349 WARN L635 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2023-11-12 01:04:11,394 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 01:04:11,729 WARN L672 CHandler]: The function __atomic_fetch_or is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 01:04:11,730 WARN L672 CHandler]: The function __atomic_fetch_sub is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 01:04:11,730 WARN L672 CHandler]: The function __atomic_exchange_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 01:04:11,731 WARN L672 CHandler]: The function __atomic_fetch_xor is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 01:04:11,732 WARN L672 CHandler]: The function htons is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 01:04:11,732 WARN L672 CHandler]: The function ntohl is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 01:04:11,732 WARN L672 CHandler]: The function __atomic_compare_exchange_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 01:04:11,732 WARN L672 CHandler]: The function __atomic_fetch_add is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 01:04:11,733 WARN L672 CHandler]: The function htonl is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 01:04:11,733 WARN L672 CHandler]: The function __atomic_store_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 01:04:11,734 WARN L672 CHandler]: The function ntohs is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 01:04:11,734 WARN L672 CHandler]: The function __atomic_load_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 01:04:11,734 WARN L672 CHandler]: The function __atomic_thread_fence is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 01:04:11,735 WARN L672 CHandler]: The function __atomic_fetch_and is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 01:04:11,735 WARN L672 CHandler]: The function aws_array_list_ensure_capacity is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 01:04:11,743 INFO L206 MainTranslator]: Completed translation [2023-11-12 01:04:11,744 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:04:11 WrapperNode [2023-11-12 01:04:11,744 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 01:04:11,746 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 01:04:11,746 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 01:04:11,746 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 01:04:11,754 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:04:11" (1/1) ... [2023-11-12 01:04:11,840 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:04:11" (1/1) ... [2023-11-12 01:04:11,893 INFO L138 Inliner]: procedures = 678, calls = 1039, calls flagged for inlining = 50, calls inlined = 4, statements flattened = 56 [2023-11-12 01:04:11,898 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 01:04:11,898 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 01:04:11,898 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 01:04:11,899 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 01:04:11,911 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:04:11" (1/1) ... [2023-11-12 01:04:11,911 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:04:11" (1/1) ... [2023-11-12 01:04:11,928 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:04:11" (1/1) ... [2023-11-12 01:04:11,929 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:04:11" (1/1) ... [2023-11-12 01:04:11,958 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:04:11" (1/1) ... [2023-11-12 01:04:11,960 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:04:11" (1/1) ... [2023-11-12 01:04:11,964 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:04:11" (1/1) ... [2023-11-12 01:04:11,979 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:04:11" (1/1) ... [2023-11-12 01:04:11,984 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 01:04:11,985 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 01:04:11,985 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 01:04:11,985 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 01:04:11,986 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:04:11" (1/1) ... [2023-11-12 01:04:11,998 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 01:04:12,010 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8807c1bb-6dff-446a-b72a-00f2c3d4ebe8/bin/utaipan-verify-NcY6lQBIFX/z3 [2023-11-12 01:04:12,033 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8807c1bb-6dff-446a-b72a-00f2c3d4ebe8/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-12 01:04:12,045 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8807c1bb-6dff-446a-b72a-00f2c3d4ebe8/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-12 01:04:12,077 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-12 01:04:12,078 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-12 01:04:12,078 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-12 01:04:12,078 INFO L130 BoogieDeclarations]: Found specification of procedure aws_linked_list_node_next_is_valid [2023-11-12 01:04:12,078 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_linked_list_node_next_is_valid [2023-11-12 01:04:12,078 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-12 01:04:12,078 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-12 01:04:12,078 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 01:04:12,078 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 01:04:12,078 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-12 01:04:12,079 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-12 01:04:12,079 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-12 01:04:12,079 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-12 01:04:12,079 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-12 01:04:12,079 INFO L130 BoogieDeclarations]: Found specification of procedure aws_linked_list_node_prev_is_valid [2023-11-12 01:04:12,079 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_linked_list_node_prev_is_valid [2023-11-12 01:04:12,079 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-12 01:04:12,313 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 01:04:12,315 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 01:04:12,535 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 01:04:12,712 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 01:04:12,712 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-12 01:04:12,715 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 01:04:12 BoogieIcfgContainer [2023-11-12 01:04:12,715 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 01:04:12,724 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-12 01:04:12,724 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-12 01:04:12,728 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-12 01:04:12,728 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 01:04:08" (1/3) ... [2023-11-12 01:04:12,729 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@716c69c8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 01:04:12, skipping insertion in model container [2023-11-12 01:04:12,729 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:04:11" (2/3) ... [2023-11-12 01:04:12,733 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@716c69c8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 01:04:12, skipping insertion in model container [2023-11-12 01:04:12,733 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 01:04:12" (3/3) ... [2023-11-12 01:04:12,734 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_linked_list_next_harness.i [2023-11-12 01:04:12,754 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-12 01:04:12,754 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-12 01:04:12,819 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-12 01:04:12,829 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;@639170c2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-12 01:04:12,829 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-12 01:04:12,833 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) [2023-11-12 01:04:12,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-11-12 01:04:12,841 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 01:04:12,842 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 01:04:12,842 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 01:04:12,848 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 01:04:12,848 INFO L85 PathProgramCache]: Analyzing trace with hash 1641023013, now seen corresponding path program 1 times [2023-11-12 01:04:12,858 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 01:04:12,858 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [320618781] [2023-11-12 01:04:12,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 01:04:12,859 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 01:04:13,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 01:04:15,771 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-12 01:04:15,772 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 01:04:15,772 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [320618781] [2023-11-12 01:04:15,773 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [320618781] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-12 01:04:15,773 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2056894793] [2023-11-12 01:04:15,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 01:04:15,773 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 01:04:15,774 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8807c1bb-6dff-446a-b72a-00f2c3d4ebe8/bin/utaipan-verify-NcY6lQBIFX/z3 [2023-11-12 01:04:15,777 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8807c1bb-6dff-446a-b72a-00f2c3d4ebe8/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 01:04:15,785 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8807c1bb-6dff-446a-b72a-00f2c3d4ebe8/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-12 01:04:15,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 01:04:15,952 INFO L262 TraceCheckSpWp]: Trace formula consists of 168 conjuncts, 73 conjunts are in the unsatisfiable core [2023-11-12 01:04:15,967 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 01:04:16,087 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 19 [2023-11-12 01:04:16,100 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 12 [2023-11-12 01:04:16,111 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 11 [2023-11-12 01:04:18,281 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-12 01:04:18,281 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 01:04:18,281 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2056894793] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 01:04:18,281 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-12 01:04:18,282 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [11] total 17 [2023-11-12 01:04:18,284 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [943512874] [2023-11-12 01:04:18,285 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 01:04:18,289 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-12 01:04:18,289 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 01:04:18,318 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-12 01:04:18,319 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=223, Unknown=0, NotChecked=0, Total=272 [2023-11-12 01:04:18,322 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 10 states, 6 states have (on average 1.1666666666666667) internal successors, (7), 5 states have internal predecessors, (7), 3 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-12 01:04:18,885 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 01:04:18,885 INFO L93 Difference]: Finished difference Result 62 states and 81 transitions. [2023-11-12 01:04:18,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-12 01:04:18,887 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 6 states have (on average 1.1666666666666667) internal successors, (7), 5 states have internal predecessors, (7), 3 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) Word has length 15 [2023-11-12 01:04:18,888 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 01:04:18,895 INFO L225 Difference]: With dead ends: 62 [2023-11-12 01:04:18,896 INFO L226 Difference]: Without dead ends: 35 [2023-11-12 01:04:18,899 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 6 SyntacticMatches, 4 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 76 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=68, Invalid=312, Unknown=0, NotChecked=0, Total=380 [2023-11-12 01:04:18,903 INFO L413 NwaCegarLoop]: 22 mSDtfsCounter, 29 mSDsluCounter, 77 mSDsCounter, 0 mSdLazyCounter, 173 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 99 SdHoareTripleChecker+Invalid, 180 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 173 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-12 01:04:18,904 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 99 Invalid, 180 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 173 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-12 01:04:18,926 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2023-11-12 01:04:18,958 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2023-11-12 01:04:18,960 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) [2023-11-12 01:04:18,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 41 transitions. [2023-11-12 01:04:18,966 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 41 transitions. Word has length 15 [2023-11-12 01:04:18,967 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 01:04:18,968 INFO L495 AbstractCegarLoop]: Abstraction has 35 states and 41 transitions. [2023-11-12 01:04:18,969 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 6 states have (on average 1.1666666666666667) internal successors, (7), 5 states have internal predecessors, (7), 3 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-12 01:04:18,975 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 41 transitions. [2023-11-12 01:04:18,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2023-11-12 01:04:18,977 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 01:04:18,977 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] [2023-11-12 01:04:18,989 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8807c1bb-6dff-446a-b72a-00f2c3d4ebe8/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-12 01:04:19,184 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8807c1bb-6dff-446a-b72a-00f2c3d4ebe8/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2023-11-12 01:04:19,184 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 01:04:19,185 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 01:04:19,185 INFO L85 PathProgramCache]: Analyzing trace with hash -1604551445, now seen corresponding path program 1 times [2023-11-12 01:04:19,185 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 01:04:19,185 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1963235626] [2023-11-12 01:04:19,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 01:04:19,185 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 01:04:19,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 01:04:20,823 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-12 01:04:20,823 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 01:04:20,824 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1963235626] [2023-11-12 01:04:20,824 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1963235626] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 01:04:20,824 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 01:04:20,824 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-12 01:04:20,825 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1107822336] [2023-11-12 01:04:20,825 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 01:04:20,826 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-12 01:04:20,826 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 01:04:20,827 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-12 01:04:20,827 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2023-11-12 01:04:20,827 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) [2023-11-12 01:04:21,072 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 01:04:21,073 INFO L93 Difference]: Finished difference Result 41 states and 46 transitions. [2023-11-12 01:04:21,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-12 01:04:21,073 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 [2023-11-12 01:04:21,074 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 01:04:21,075 INFO L225 Difference]: With dead ends: 41 [2023-11-12 01:04:21,075 INFO L226 Difference]: Without dead ends: 39 [2023-11-12 01:04:21,075 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2023-11-12 01:04:21,077 INFO L413 NwaCegarLoop]: 29 mSDtfsCounter, 10 mSDsluCounter, 123 mSDsCounter, 0 mSdLazyCounter, 106 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 152 SdHoareTripleChecker+Invalid, 116 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 106 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-12 01:04:21,077 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 152 Invalid, 116 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 106 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-12 01:04:21,078 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2023-11-12 01:04:21,092 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2023-11-12 01:04:21,093 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) [2023-11-12 01:04:21,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 44 transitions. [2023-11-12 01:04:21,094 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 44 transitions. Word has length 24 [2023-11-12 01:04:21,095 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 01:04:21,095 INFO L495 AbstractCegarLoop]: Abstraction has 39 states and 44 transitions. [2023-11-12 01:04:21,095 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) [2023-11-12 01:04:21,095 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 44 transitions. [2023-11-12 01:04:21,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2023-11-12 01:04:21,097 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 01:04:21,097 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] [2023-11-12 01:04:21,097 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-12 01:04:21,097 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 01:04:21,098 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 01:04:21,098 INFO L85 PathProgramCache]: Analyzing trace with hash 1133002952, now seen corresponding path program 1 times [2023-11-12 01:04:21,098 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 01:04:21,099 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2029969369] [2023-11-12 01:04:21,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 01:04:21,099 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 01:04:21,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 01:04:21,384 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-11-12 01:04:21,385 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 01:04:21,385 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2029969369] [2023-11-12 01:04:21,385 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2029969369] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 01:04:21,385 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 01:04:21,386 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-12 01:04:21,386 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1002568957] [2023-11-12 01:04:21,386 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 01:04:21,387 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-12 01:04:21,387 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 01:04:21,387 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-12 01:04:21,388 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-12 01:04:21,388 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) [2023-11-12 01:04:21,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 01:04:21,512 INFO L93 Difference]: Finished difference Result 45 states and 49 transitions. [2023-11-12 01:04:21,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-12 01:04:21,513 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 [2023-11-12 01:04:21,513 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 01:04:21,514 INFO L225 Difference]: With dead ends: 45 [2023-11-12 01:04:21,514 INFO L226 Difference]: Without dead ends: 43 [2023-11-12 01:04:21,515 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-11-12 01:04:21,516 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 [2023-11-12 01:04:21,516 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] [2023-11-12 01:04:21,518 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2023-11-12 01:04:21,531 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 43. [2023-11-12 01:04:21,531 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) [2023-11-12 01:04:21,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 47 transitions. [2023-11-12 01:04:21,533 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 47 transitions. Word has length 30 [2023-11-12 01:04:21,533 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 01:04:21,533 INFO L495 AbstractCegarLoop]: Abstraction has 43 states and 47 transitions. [2023-11-12 01:04:21,533 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) [2023-11-12 01:04:21,534 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 47 transitions. [2023-11-12 01:04:21,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2023-11-12 01:04:21,535 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 01:04:21,535 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] [2023-11-12 01:04:21,536 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-12 01:04:21,536 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 01:04:21,536 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 01:04:21,536 INFO L85 PathProgramCache]: Analyzing trace with hash -1632940168, now seen corresponding path program 1 times [2023-11-12 01:04:21,537 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 01:04:21,537 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1995215705] [2023-11-12 01:04:21,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 01:04:21,537 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 01:04:21,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 01:04:23,100 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-11-12 01:04:23,101 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 01:04:23,101 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1995215705] [2023-11-12 01:04:23,101 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1995215705] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 01:04:23,101 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 01:04:23,102 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-12 01:04:23,102 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [261661174] [2023-11-12 01:04:23,102 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 01:04:23,103 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-12 01:04:23,103 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 01:04:23,104 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-12 01:04:23,104 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-11-12 01:04:23,105 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) [2023-11-12 01:04:23,311 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 01:04:23,311 INFO L93 Difference]: Finished difference Result 49 states and 52 transitions. [2023-11-12 01:04:23,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-12 01:04:23,312 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 [2023-11-12 01:04:23,312 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 01:04:23,313 INFO L225 Difference]: With dead ends: 49 [2023-11-12 01:04:23,313 INFO L226 Difference]: Without dead ends: 47 [2023-11-12 01:04:23,314 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 [2023-11-12 01:04:23,315 INFO L413 NwaCegarLoop]: 28 mSDtfsCounter, 10 mSDsluCounter, 88 mSDsCounter, 0 mSdLazyCounter, 109 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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 [2023-11-12 01:04:23,315 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] [2023-11-12 01:04:23,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2023-11-12 01:04:23,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 47. [2023-11-12 01:04:23,332 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) [2023-11-12 01:04:23,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 50 transitions. [2023-11-12 01:04:23,338 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 50 transitions. Word has length 39 [2023-11-12 01:04:23,339 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 01:04:23,339 INFO L495 AbstractCegarLoop]: Abstraction has 47 states and 50 transitions. [2023-11-12 01:04:23,339 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) [2023-11-12 01:04:23,339 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 50 transitions. [2023-11-12 01:04:23,343 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2023-11-12 01:04:23,343 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 01:04:23,344 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] [2023-11-12 01:04:23,344 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-12 01:04:23,344 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 01:04:23,344 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 01:04:23,345 INFO L85 PathProgramCache]: Analyzing trace with hash -1174741246, now seen corresponding path program 1 times [2023-11-12 01:04:23,345 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 01:04:23,345 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [3430423] [2023-11-12 01:04:23,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 01:04:23,345 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 01:04:23,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 01:04:25,509 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2023-11-12 01:04:25,510 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 01:04:25,510 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [3430423] [2023-11-12 01:04:25,510 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [3430423] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 01:04:25,510 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 01:04:25,510 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-11-12 01:04:25,510 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1567819106] [2023-11-12 01:04:25,511 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 01:04:25,511 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-12 01:04:25,511 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 01:04:25,512 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-12 01:04:25,512 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2023-11-12 01:04:25,512 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) [2023-11-12 01:04:25,782 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 01:04:25,782 INFO L93 Difference]: Finished difference Result 53 states and 55 transitions. [2023-11-12 01:04:25,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-12 01:04:25,783 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 [2023-11-12 01:04:25,784 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 01:04:25,784 INFO L225 Difference]: With dead ends: 53 [2023-11-12 01:04:25,784 INFO L226 Difference]: Without dead ends: 49 [2023-11-12 01:04:25,785 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2023-11-12 01:04:25,786 INFO L413 NwaCegarLoop]: 29 mSDtfsCounter, 10 mSDsluCounter, 106 mSDsCounter, 0 mSdLazyCounter, 160 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 135 SdHoareTripleChecker+Invalid, 165 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 160 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-12 01:04:25,786 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 135 Invalid, 165 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 160 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-12 01:04:25,787 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2023-11-12 01:04:25,802 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 49. [2023-11-12 01:04:25,802 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) [2023-11-12 01:04:25,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 51 transitions. [2023-11-12 01:04:25,803 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 51 transitions. Word has length 48 [2023-11-12 01:04:25,804 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 01:04:25,804 INFO L495 AbstractCegarLoop]: Abstraction has 49 states and 51 transitions. [2023-11-12 01:04:25,804 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) [2023-11-12 01:04:25,804 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 51 transitions. [2023-11-12 01:04:25,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2023-11-12 01:04:25,806 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 01:04:25,806 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] [2023-11-12 01:04:25,806 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-12 01:04:25,806 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 01:04:25,807 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 01:04:25,807 INFO L85 PathProgramCache]: Analyzing trace with hash 598106773, now seen corresponding path program 1 times [2023-11-12 01:04:25,807 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 01:04:25,807 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1459541131] [2023-11-12 01:04:25,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 01:04:25,808 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 01:04:25,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 01:04:26,742 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2023-11-12 01:04:26,743 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 01:04:26,743 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1459541131] [2023-11-12 01:04:26,743 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1459541131] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 01:04:26,743 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 01:04:26,743 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-11-12 01:04:26,744 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1903954130] [2023-11-12 01:04:26,744 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 01:04:26,744 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-12 01:04:26,745 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 01:04:26,745 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-12 01:04:26,745 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2023-11-12 01:04:26,746 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) [2023-11-12 01:04:26,963 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 01:04:26,963 INFO L93 Difference]: Finished difference Result 49 states and 51 transitions. [2023-11-12 01:04:26,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-12 01:04:26,963 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 [2023-11-12 01:04:26,964 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 01:04:26,964 INFO L225 Difference]: With dead ends: 49 [2023-11-12 01:04:26,964 INFO L226 Difference]: Without dead ends: 0 [2023-11-12 01:04:26,965 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 [2023-11-12 01:04:26,966 INFO L413 NwaCegarLoop]: 29 mSDtfsCounter, 7 mSDsluCounter, 102 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 131 SdHoareTripleChecker+Invalid, 94 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 88 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-12 01:04:26,966 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 131 Invalid, 94 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 88 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-12 01:04:26,967 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-11-12 01:04:26,967 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-11-12 01:04:26,967 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) [2023-11-12 01:04:26,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-11-12 01:04:26,968 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 54 [2023-11-12 01:04:26,968 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 01:04:26,968 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-12 01:04:26,969 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) [2023-11-12 01:04:26,969 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-11-12 01:04:26,969 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-12 01:04:26,971 INFO L805 garLoopResultBuilder]: Registering result SAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-12 01:04:26,972 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-12 01:04:26,974 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-11-12 01:04:27,840 INFO L899 garLoopResultBuilder]: For program point aws_linked_list_node_next_is_validEXIT(lines 4717 4721) no Hoare annotation was computed. [2023-11-12 01:04:27,840 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 4717 4721) the Hoare annotation is: true [2023-11-12 01:04:27,840 INFO L899 garLoopResultBuilder]: For program point aws_linked_list_node_prev_is_validEXIT(lines 4728 4732) no Hoare annotation was computed. [2023-11-12 01:04:27,840 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 4728 4732) the Hoare annotation is: true [2023-11-12 01:04:27,840 INFO L899 garLoopResultBuilder]: For program point L7391-1(line 7391) no Hoare annotation was computed. [2023-11-12 01:04:27,840 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-11-12 01:04:27,841 INFO L895 garLoopResultBuilder]: At program point L7391(line 7391) the Hoare annotation is: (let ((.cse1 (select (select |#memory_$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$.offset| .cse0) .cse1) 0) (not (= |ULTIMATE.start_aws_linked_list_next_harness_~rval~10#1.base| 0)) (= |ULTIMATE.start_aws_linked_list_next_harness_~#after~0#1.offset| 0) (not (= |ULTIMATE.start_aws_linked_list_next_harness_~#node~1#1.base| |ULTIMATE.start_aws_linked_list_next_harness_~#after~0#1.base|)) (not (= |ULTIMATE.start_aws_linked_list_next_harness_~#node~1#1.base| 0)) (exists ((|v_ULTIMATE.start_aws_linked_list_next_~node#1.base_BEFORE_CALL_1| Int)) (let ((.cse3 (select (select |#memory_$Pointer$.base| |v_ULTIMATE.start_aws_linked_list_next_~node#1.base_BEFORE_CALL_1|) 0))) (and (<= 2 |v_ULTIMATE.start_aws_linked_list_next_~node#1.base_BEFORE_CALL_1|) (not (= .cse3 0)) (= (select (select |#memory_$Pointer$.offset| .cse3) 8) 0) (not (= .cse3 |v_ULTIMATE.start_aws_linked_list_next_~node#1.base_BEFORE_CALL_1|)) (= (select (select |#memory_$Pointer$.offset| |v_ULTIMATE.start_aws_linked_list_next_~node#1.base_BEFORE_CALL_1|) 0) 0) (= (select (select |#memory_$Pointer$.base| .cse3) 8) |v_ULTIMATE.start_aws_linked_list_next_~node#1.base_BEFORE_CALL_1|)))) (= (select (select |#memory_$Pointer$.offset| .cse2) 8) |ULTIMATE.start_aws_linked_list_next_harness_~#node~1#1.offset|) (= |ULTIMATE.start_aws_linked_list_next_harness_~#node~1#1.base| .cse0))) [2023-11-12 01:04:27,841 INFO L899 garLoopResultBuilder]: For program point L7389-2(line 7389) no Hoare annotation was computed. [2023-11-12 01:04:27,842 INFO L895 garLoopResultBuilder]: At program point L7389-1(line 7389) the Hoare annotation is: (let ((.cse1 (select (select |#memory_$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$.offset| .cse0) .cse1) 0) (not (= |ULTIMATE.start_aws_linked_list_next_harness_~rval~10#1.base| 0)) (= |ULTIMATE.start_aws_linked_list_next_harness_~#after~0#1.offset| 0) (not (= |ULTIMATE.start_aws_linked_list_next_harness_~#node~1#1.base| |ULTIMATE.start_aws_linked_list_next_harness_~#after~0#1.base|)) (not (= |ULTIMATE.start_aws_linked_list_next_harness_~#node~1#1.base| 0)) (exists ((|v_ULTIMATE.start_aws_linked_list_next_~node#1.base_BEFORE_CALL_1| Int)) (let ((.cse3 (select (select |#memory_$Pointer$.base| |v_ULTIMATE.start_aws_linked_list_next_~node#1.base_BEFORE_CALL_1|) 0))) (and (<= 2 |v_ULTIMATE.start_aws_linked_list_next_~node#1.base_BEFORE_CALL_1|) (not (= .cse3 0)) (= (select (select |#memory_$Pointer$.offset| .cse3) 8) 0) (not (= .cse3 |v_ULTIMATE.start_aws_linked_list_next_~node#1.base_BEFORE_CALL_1|)) (= (select (select |#memory_$Pointer$.offset| |v_ULTIMATE.start_aws_linked_list_next_~node#1.base_BEFORE_CALL_1|) 0) 0) (= (select (select |#memory_$Pointer$.base| .cse3) 8) |v_ULTIMATE.start_aws_linked_list_next_~node#1.base_BEFORE_CALL_1|)))) (= |ULTIMATE.start_aws_linked_list_next_harness_#t~ret680#1| 1) (= (select (select |#memory_$Pointer$.offset| .cse2) 8) |ULTIMATE.start_aws_linked_list_next_harness_~#node~1#1.offset|) (= |ULTIMATE.start_aws_linked_list_next_harness_~#node~1#1.base| .cse0))) [2023-11-12 01:04:27,842 INFO L895 garLoopResultBuilder]: At program point L7389(line 7389) the Hoare annotation is: (let ((.cse1 (select (select |#memory_$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$.offset| .cse0) .cse1) 0) (not (= |ULTIMATE.start_aws_linked_list_next_harness_~rval~10#1.base| 0)) (= |ULTIMATE.start_aws_linked_list_next_harness_~#after~0#1.offset| 0) (not (= |ULTIMATE.start_aws_linked_list_next_harness_~#node~1#1.base| |ULTIMATE.start_aws_linked_list_next_harness_~#after~0#1.base|)) (not (= |ULTIMATE.start_aws_linked_list_next_harness_~#node~1#1.base| 0)) (exists ((|v_ULTIMATE.start_aws_linked_list_next_~node#1.base_BEFORE_CALL_1| Int)) (let ((.cse3 (select (select |#memory_$Pointer$.base| |v_ULTIMATE.start_aws_linked_list_next_~node#1.base_BEFORE_CALL_1|) 0))) (and (<= 2 |v_ULTIMATE.start_aws_linked_list_next_~node#1.base_BEFORE_CALL_1|) (not (= .cse3 0)) (= (select (select |#memory_$Pointer$.offset| .cse3) 8) 0) (not (= .cse3 |v_ULTIMATE.start_aws_linked_list_next_~node#1.base_BEFORE_CALL_1|)) (= (select (select |#memory_$Pointer$.offset| |v_ULTIMATE.start_aws_linked_list_next_~node#1.base_BEFORE_CALL_1|) 0) 0) (= (select (select |#memory_$Pointer$.base| .cse3) 8) |v_ULTIMATE.start_aws_linked_list_next_~node#1.base_BEFORE_CALL_1|)))) (= (select (select |#memory_$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))) [2023-11-12 01:04:27,842 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-11-12 01:04:27,842 INFO L895 garLoopResultBuilder]: At program point L4840-1(line 4840) the Hoare annotation is: (let ((.cse0 (select (select |#memory_$Pointer$.base| |ULTIMATE.start_aws_linked_list_next_~node#1.base|) 0)) (.cse1 (select (select |#memory_$Pointer$.base| |ULTIMATE.start_aws_linked_list_next_~rval~4#1.base|) 8))) (and (= |ULTIMATE.start_aws_linked_list_next_~rval~4#1.offset| 0) (= |ULTIMATE.start_aws_linked_list_next_~node#1.offset| 0) (= |ULTIMATE.start_aws_linked_list_next_harness_~#node~1#1.offset| 0) (= .cse0 |ULTIMATE.start_aws_linked_list_next_~rval~4#1.base|) (= |ULTIMATE.start_aws_linked_list_next_harness_~#after~0#1.offset| 0) (not (= |ULTIMATE.start_aws_linked_list_next_~rval~4#1.base| 0)) (= .cse0 |ULTIMATE.start_aws_linked_list_next_harness_~#after~0#1.base|) (= |ULTIMATE.start_aws_linked_list_next_#t~ret339#1| 1) (<= 2 |ULTIMATE.start_aws_linked_list_next_~node#1.base|) (= .cse1 |ULTIMATE.start_aws_linked_list_next_harness_~#node~1#1.base|) (= (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_aws_linked_list_next_~node#1.base|) 0) 0) (not (= |ULTIMATE.start_aws_linked_list_next_~node#1.base| .cse0)) (= (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_aws_linked_list_next_harness_~#node~1#1.base|) 0)) 8) 0) (= .cse1 |ULTIMATE.start_aws_linked_list_next_~node#1.base|))) [2023-11-12 01:04:27,842 INFO L899 garLoopResultBuilder]: For program point L4840-2(line 4840) no Hoare annotation was computed. [2023-11-12 01:04:27,843 INFO L895 garLoopResultBuilder]: At program point L4840(line 4840) the Hoare annotation is: (let ((.cse0 (select (select |#memory_$Pointer$.base| |ULTIMATE.start_aws_linked_list_next_~node#1.base|) 0)) (.cse1 (select (select |#memory_$Pointer$.base| |ULTIMATE.start_aws_linked_list_next_~rval~4#1.base|) 8))) (and (= |ULTIMATE.start_aws_linked_list_next_~rval~4#1.offset| 0) (= |ULTIMATE.start_aws_linked_list_next_~node#1.offset| 0) (= |ULTIMATE.start_aws_linked_list_next_harness_~#node~1#1.offset| 0) (= .cse0 |ULTIMATE.start_aws_linked_list_next_~rval~4#1.base|) (= |ULTIMATE.start_aws_linked_list_next_harness_~#after~0#1.offset| 0) (not (= |ULTIMATE.start_aws_linked_list_next_~rval~4#1.base| 0)) (= .cse0 |ULTIMATE.start_aws_linked_list_next_harness_~#after~0#1.base|) (<= 2 |ULTIMATE.start_aws_linked_list_next_~node#1.base|) (= .cse1 |ULTIMATE.start_aws_linked_list_next_harness_~#node~1#1.base|) (= (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_aws_linked_list_next_~node#1.base|) 0) 0) (not (= |ULTIMATE.start_aws_linked_list_next_~node#1.base| .cse0)) (= (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_aws_linked_list_next_harness_~#node~1#1.base|) 0)) 8) 0) (= .cse1 |ULTIMATE.start_aws_linked_list_next_~node#1.base|))) [2023-11-12 01:04:27,843 INFO L895 garLoopResultBuilder]: At program point L7390(line 7390) the Hoare annotation is: (let ((.cse1 (select (select |#memory_$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$.offset| .cse0) .cse1) 0) (not (= |ULTIMATE.start_aws_linked_list_next_harness_~rval~10#1.base| 0)) (= |ULTIMATE.start_aws_linked_list_next_harness_~#after~0#1.offset| 0) (not (= |ULTIMATE.start_aws_linked_list_next_harness_~#node~1#1.base| |ULTIMATE.start_aws_linked_list_next_harness_~#after~0#1.base|)) (not (= |ULTIMATE.start_aws_linked_list_next_harness_~#node~1#1.base| 0)) (exists ((|v_ULTIMATE.start_aws_linked_list_next_~node#1.base_BEFORE_CALL_1| Int)) (let ((.cse3 (select (select |#memory_$Pointer$.base| |v_ULTIMATE.start_aws_linked_list_next_~node#1.base_BEFORE_CALL_1|) 0))) (and (<= 2 |v_ULTIMATE.start_aws_linked_list_next_~node#1.base_BEFORE_CALL_1|) (not (= .cse3 0)) (= (select (select |#memory_$Pointer$.offset| .cse3) 8) 0) (not (= .cse3 |v_ULTIMATE.start_aws_linked_list_next_~node#1.base_BEFORE_CALL_1|)) (= (select (select |#memory_$Pointer$.offset| |v_ULTIMATE.start_aws_linked_list_next_~node#1.base_BEFORE_CALL_1|) 0) 0) (= (select (select |#memory_$Pointer$.base| .cse3) 8) |v_ULTIMATE.start_aws_linked_list_next_~node#1.base_BEFORE_CALL_1|)))) (= (select (select |#memory_$Pointer$.offset| .cse2) 8) |ULTIMATE.start_aws_linked_list_next_harness_~#node~1#1.offset|) (= |ULTIMATE.start_aws_linked_list_next_harness_~#node~1#1.base| .cse0))) [2023-11-12 01:04:27,843 INFO L899 garLoopResultBuilder]: For program point L7390-2(line 7390) no Hoare annotation was computed. [2023-11-12 01:04:27,844 INFO L895 garLoopResultBuilder]: At program point L7390-1(line 7390) the Hoare annotation is: (let ((.cse1 (select (select |#memory_$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$.offset| .cse0) .cse1) 0) (not (= |ULTIMATE.start_aws_linked_list_next_harness_~rval~10#1.base| 0)) (= |ULTIMATE.start_aws_linked_list_next_harness_~#after~0#1.offset| 0) (not (= |ULTIMATE.start_aws_linked_list_next_harness_~#node~1#1.base| |ULTIMATE.start_aws_linked_list_next_harness_~#after~0#1.base|)) (not (= |ULTIMATE.start_aws_linked_list_next_harness_~#node~1#1.base| 0)) (= |ULTIMATE.start_aws_linked_list_next_harness_#t~ret681#1| 1) (exists ((|v_ULTIMATE.start_aws_linked_list_next_~node#1.base_BEFORE_CALL_1| Int)) (let ((.cse3 (select (select |#memory_$Pointer$.base| |v_ULTIMATE.start_aws_linked_list_next_~node#1.base_BEFORE_CALL_1|) 0))) (and (<= 2 |v_ULTIMATE.start_aws_linked_list_next_~node#1.base_BEFORE_CALL_1|) (not (= .cse3 0)) (= (select (select |#memory_$Pointer$.offset| .cse3) 8) 0) (not (= .cse3 |v_ULTIMATE.start_aws_linked_list_next_~node#1.base_BEFORE_CALL_1|)) (= (select (select |#memory_$Pointer$.offset| |v_ULTIMATE.start_aws_linked_list_next_~node#1.base_BEFORE_CALL_1|) 0) 0) (= (select (select |#memory_$Pointer$.base| .cse3) 8) |v_ULTIMATE.start_aws_linked_list_next_~node#1.base_BEFORE_CALL_1|)))) (= (select (select |#memory_$Pointer$.offset| .cse2) 8) |ULTIMATE.start_aws_linked_list_next_harness_~#node~1#1.offset|) (= |ULTIMATE.start_aws_linked_list_next_harness_~#node~1#1.base| .cse0))) [2023-11-12 01:04:27,844 INFO L895 garLoopResultBuilder]: At program point L4839(line 4839) the Hoare annotation is: (let ((.cse0 (select (select |#memory_$Pointer$.base| |ULTIMATE.start_aws_linked_list_next_~node#1.base|) 0)) (.cse1 (select (select |#memory_$Pointer$.base| |ULTIMATE.start_aws_linked_list_next_~rval~4#1.base|) 8))) (and (= |ULTIMATE.start_aws_linked_list_next_~rval~4#1.offset| 0) (= |ULTIMATE.start_aws_linked_list_next_~node#1.offset| 0) (= |ULTIMATE.start_aws_linked_list_next_harness_~#node~1#1.offset| 0) (= .cse0 |ULTIMATE.start_aws_linked_list_next_~rval~4#1.base|) (= |ULTIMATE.start_aws_linked_list_next_harness_~#after~0#1.offset| 0) (not (= |ULTIMATE.start_aws_linked_list_next_~rval~4#1.base| 0)) (= .cse0 |ULTIMATE.start_aws_linked_list_next_harness_~#after~0#1.base|) (<= 2 |ULTIMATE.start_aws_linked_list_next_~node#1.base|) (= .cse1 |ULTIMATE.start_aws_linked_list_next_harness_~#node~1#1.base|) (= (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_aws_linked_list_next_~node#1.base|) 0) 0) (not (= |ULTIMATE.start_aws_linked_list_next_~node#1.base| .cse0)) (= (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_aws_linked_list_next_harness_~#node~1#1.base|) 0)) 8) 0) (= .cse1 |ULTIMATE.start_aws_linked_list_next_~node#1.base|))) [2023-11-12 01:04:27,844 INFO L895 garLoopResultBuilder]: At program point L4839-1(line 4839) the Hoare annotation is: (let ((.cse0 (select (select |#memory_$Pointer$.base| |ULTIMATE.start_aws_linked_list_next_~node#1.base|) 0)) (.cse1 (select (select |#memory_$Pointer$.base| |ULTIMATE.start_aws_linked_list_next_~rval~4#1.base|) 8))) (and (= |ULTIMATE.start_aws_linked_list_next_~rval~4#1.offset| 0) (= |ULTIMATE.start_aws_linked_list_next_~node#1.offset| 0) (= |ULTIMATE.start_aws_linked_list_next_harness_~#node~1#1.offset| 0) (= .cse0 |ULTIMATE.start_aws_linked_list_next_~rval~4#1.base|) (= |ULTIMATE.start_aws_linked_list_next_harness_~#after~0#1.offset| 0) (not (= |ULTIMATE.start_aws_linked_list_next_~rval~4#1.base| 0)) (= |ULTIMATE.start_aws_linked_list_next_#t~ret338#1| 1) (= .cse0 |ULTIMATE.start_aws_linked_list_next_harness_~#after~0#1.base|) (<= 2 |ULTIMATE.start_aws_linked_list_next_~node#1.base|) (= .cse1 |ULTIMATE.start_aws_linked_list_next_harness_~#node~1#1.base|) (= (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_aws_linked_list_next_~node#1.base|) 0) 0) (not (= |ULTIMATE.start_aws_linked_list_next_~node#1.base| .cse0)) (= (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_aws_linked_list_next_harness_~#node~1#1.base|) 0)) 8) 0) (= .cse1 |ULTIMATE.start_aws_linked_list_next_~node#1.base|))) [2023-11-12 01:04:27,845 INFO L895 garLoopResultBuilder]: At program point L4841(line 4841) the Hoare annotation is: (let ((.cse0 (select (select |#memory_$Pointer$.base| |ULTIMATE.start_aws_linked_list_next_~node#1.base|) 0)) (.cse1 (select (select |#memory_$Pointer$.base| |ULTIMATE.start_aws_linked_list_next_~rval~4#1.base|) 8))) (and (= |ULTIMATE.start_aws_linked_list_next_#t~mem340#1.base| |ULTIMATE.start_aws_linked_list_next_~rval~4#1.base|) (= |ULTIMATE.start_aws_linked_list_next_~rval~4#1.offset| 0) (= |ULTIMATE.start_aws_linked_list_next_~node#1.offset| 0) (= |ULTIMATE.start_aws_linked_list_next_harness_~#node~1#1.offset| 0) (= .cse0 |ULTIMATE.start_aws_linked_list_next_~rval~4#1.base|) (= |ULTIMATE.start_aws_linked_list_next_#t~mem340#1.offset| 0) (= |ULTIMATE.start_aws_linked_list_next_harness_~#after~0#1.offset| 0) (not (= |ULTIMATE.start_aws_linked_list_next_~rval~4#1.base| 0)) (= .cse0 |ULTIMATE.start_aws_linked_list_next_harness_~#after~0#1.base|) (<= 2 |ULTIMATE.start_aws_linked_list_next_~node#1.base|) (= .cse1 |ULTIMATE.start_aws_linked_list_next_harness_~#node~1#1.base|) (= (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_aws_linked_list_next_~node#1.base|) 0) 0) (not (= |ULTIMATE.start_aws_linked_list_next_~node#1.base| .cse0)) (= (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_aws_linked_list_next_harness_~#node~1#1.base|) 0)) 8) 0) (= .cse1 |ULTIMATE.start_aws_linked_list_next_~node#1.base|))) [2023-11-12 01:04:27,845 INFO L899 garLoopResultBuilder]: For program point L4841-1(line 4841) no Hoare annotation was computed. [2023-11-12 01:04:27,845 INFO L899 garLoopResultBuilder]: For program point L4837-2(line 4837) no Hoare annotation was computed. [2023-11-12 01:04:27,845 INFO L895 garLoopResultBuilder]: At program point L4837(line 4837) the Hoare annotation is: (let ((.cse2 (select (select |#memory_$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$.base| |ULTIMATE.start_aws_linked_list_next_harness_~#node~1#1.base|) 0))) (and (= |ULTIMATE.start_aws_linked_list_next_~node#1.offset| 0) (= |ULTIMATE.start_aws_linked_list_next_harness_~#node~1#1.offset| 0) (= .cse0 |ULTIMATE.start_aws_linked_list_next_~node#1.base|) (= |ULTIMATE.start_aws_linked_list_next_harness_~#after~0#1.offset| 0) (not (= .cse1 0)) (= .cse0 |ULTIMATE.start_aws_linked_list_next_harness_~#node~1#1.base|) (= .cse2 |ULTIMATE.start_aws_linked_list_next_harness_~#after~0#1.base|) (<= 2 |ULTIMATE.start_aws_linked_list_next_~node#1.base|) (= (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_aws_linked_list_next_~node#1.base|) 0) 0) (not (= |ULTIMATE.start_aws_linked_list_next_~node#1.base| .cse2)) (= (select (select |#memory_$Pointer$.offset| .cse1) 8) 0)))) [2023-11-12 01:04:27,845 INFO L899 garLoopResultBuilder]: For program point L4839-2(line 4839) no Hoare annotation was computed. [2023-11-12 01:04:27,845 INFO L895 garLoopResultBuilder]: At program point L4837-1(line 4837) the Hoare annotation is: (let ((.cse2 (select (select |#memory_$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$.base| |ULTIMATE.start_aws_linked_list_next_harness_~#node~1#1.base|) 0))) (and (= |ULTIMATE.start_aws_linked_list_next_~node#1.offset| 0) (= |ULTIMATE.start_aws_linked_list_next_harness_~#node~1#1.offset| 0) (= .cse0 |ULTIMATE.start_aws_linked_list_next_~node#1.base|) (= |ULTIMATE.start_aws_linked_list_next_harness_~#after~0#1.offset| 0) (not (= .cse1 0)) (= .cse0 |ULTIMATE.start_aws_linked_list_next_harness_~#node~1#1.base|) (= |ULTIMATE.start_aws_linked_list_next_#t~ret336#1| 1) (= .cse2 |ULTIMATE.start_aws_linked_list_next_harness_~#after~0#1.base|) (<= 2 |ULTIMATE.start_aws_linked_list_next_~node#1.base|) (= (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_aws_linked_list_next_~node#1.base|) 0) 0) (not (= |ULTIMATE.start_aws_linked_list_next_~node#1.base| .cse2)) (= (select (select |#memory_$Pointer$.offset| .cse1) 8) 0)))) [2023-11-12 01:04:27,846 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 210 212) the Hoare annotation is: true [2023-11-12 01:04:27,846 INFO L899 garLoopResultBuilder]: For program point assume_abort_if_notEXIT(lines 210 212) no Hoare annotation was computed. [2023-11-12 01:04:27,846 INFO L899 garLoopResultBuilder]: For program point L223(line 223) no Hoare annotation was computed. [2023-11-12 01:04:27,846 INFO L899 garLoopResultBuilder]: For program point L223-1(line 223) no Hoare annotation was computed. [2023-11-12 01:04:27,846 INFO L899 garLoopResultBuilder]: For program point L223-3(lines 222 224) no Hoare annotation was computed. [2023-11-12 01:04:27,846 INFO L899 garLoopResultBuilder]: For program point __VERIFIER_assertEXIT(lines 222 224) no Hoare annotation was computed. [2023-11-12 01:04:27,846 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 222 224) the Hoare annotation is: true [2023-11-12 01:04:27,846 INFO L899 garLoopResultBuilder]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 223) no Hoare annotation was computed. [2023-11-12 01:04:27,853 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2023-11-12 01:04:27,855 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-11-12 01:04:27,861 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.11 01:04:27 BoogieIcfgContainer [2023-11-12 01:04:27,861 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-12 01:04:27,861 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-12 01:04:27,862 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-12 01:04:27,862 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-12 01:04:27,862 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 01:04:12" (3/4) ... [2023-11-12 01:04:27,864 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-12 01:04:27,868 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure aws_linked_list_node_next_is_valid [2023-11-12 01:04:27,868 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure aws_linked_list_node_prev_is_valid [2023-11-12 01:04:27,869 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2023-11-12 01:04:27,869 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2023-11-12 01:04:27,877 INFO L944 BoogieBacktranslator]: Reduced CFG by removing 28 nodes and edges [2023-11-12 01:04:27,877 INFO L944 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2023-11-12 01:04:27,878 INFO L944 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-12 01:04:27,878 INFO L944 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-12 01:04:27,978 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8807c1bb-6dff-446a-b72a-00f2c3d4ebe8/bin/utaipan-verify-NcY6lQBIFX/witness.graphml [2023-11-12 01:04:27,979 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8807c1bb-6dff-446a-b72a-00f2c3d4ebe8/bin/utaipan-verify-NcY6lQBIFX/witness.yml [2023-11-12 01:04:27,979 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-12 01:04:27,979 INFO L158 Benchmark]: Toolchain (without parser) took 19052.55ms. Allocated memory was 190.8MB in the beginning and 444.6MB in the end (delta: 253.8MB). Free memory was 157.1MB in the beginning and 142.1MB in the end (delta: 15.0MB). Peak memory consumption was 267.9MB. Max. memory is 16.1GB. [2023-11-12 01:04:27,980 INFO L158 Benchmark]: CDTParser took 0.23ms. Allocated memory is still 130.0MB. Free memory is still 102.6MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-12 01:04:27,980 INFO L158 Benchmark]: CACSL2BoogieTranslator took 2815.88ms. Allocated memory is still 190.8MB. Free memory was 156.2MB in the beginning and 100.3MB in the end (delta: 55.9MB). Peak memory consumption was 101.0MB. Max. memory is 16.1GB. [2023-11-12 01:04:27,980 INFO L158 Benchmark]: Boogie Procedure Inliner took 152.15ms. Allocated memory is still 190.8MB. Free memory was 100.3MB in the beginning and 95.1MB in the end (delta: 5.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-11-12 01:04:27,981 INFO L158 Benchmark]: Boogie Preprocessor took 85.92ms. Allocated memory is still 190.8MB. Free memory was 95.1MB in the beginning and 93.0MB in the end (delta: 2.1MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-12 01:04:27,981 INFO L158 Benchmark]: RCFGBuilder took 730.27ms. Allocated memory is still 190.8MB. Free memory was 91.9MB in the beginning and 129.3MB in the end (delta: -37.4MB). Peak memory consumption was 30.7MB. Max. memory is 16.1GB. [2023-11-12 01:04:27,982 INFO L158 Benchmark]: TraceAbstraction took 15137.26ms. Allocated memory was 190.8MB in the beginning and 444.6MB in the end (delta: 253.8MB). Free memory was 128.3MB in the beginning and 147.4MB in the end (delta: -19.1MB). Peak memory consumption was 234.7MB. Max. memory is 16.1GB. [2023-11-12 01:04:27,982 INFO L158 Benchmark]: Witness Printer took 117.39ms. Allocated memory is still 444.6MB. Free memory was 147.4MB in the beginning and 142.1MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-12 01:04:27,985 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23ms. Allocated memory is still 130.0MB. Free memory is still 102.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 2815.88ms. Allocated memory is still 190.8MB. Free memory was 156.2MB in the beginning and 100.3MB in the end (delta: 55.9MB). Peak memory consumption was 101.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 152.15ms. Allocated memory is still 190.8MB. Free memory was 100.3MB in the beginning and 95.1MB in the end (delta: 5.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Preprocessor took 85.92ms. Allocated memory is still 190.8MB. Free memory was 95.1MB in the beginning and 93.0MB in the end (delta: 2.1MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 730.27ms. Allocated memory is still 190.8MB. Free memory was 91.9MB in the beginning and 129.3MB in the end (delta: -37.4MB). Peak memory consumption was 30.7MB. Max. memory is 16.1GB. * TraceAbstraction took 15137.26ms. Allocated memory was 190.8MB in the beginning and 444.6MB in the end (delta: 253.8MB). Free memory was 128.3MB in the beginning and 147.4MB in the end (delta: -19.1MB). Peak memory consumption was 234.7MB. Max. memory is 16.1GB. * Witness Printer took 117.39ms. Allocated memory is still 444.6MB. Free memory was 147.4MB in the beginning and 142.1MB 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: 15.1s, OverallIterations: 6, TraceHistogramMax: 6, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.9s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 102 SdHoareTripleChecker+Valid, 1.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 72 mSDsluCounter, 765 SdHoareTripleChecker+Invalid, 1.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 596 mSDsCounter, 32 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 692 IncrementalHoareTripleChecker+Invalid, 724 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 32 mSolverCounterUnsat, 169 mSDtfsCounter, 692 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 89 GetRequests, 22 SyntacticMatches, 5 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 126 ImplicationChecksByTransitivity, 1.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=49occurred in iteration=5, InterpolantAutomatonStates: 48, 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, 1277 HoareAnnotationTreeSize, 32 FomulaSimplifications, 144 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 16 FomulaSimplificationsInter, 1019 FormulaSimplificationTreeSizeReductionInter, 0.8s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 11.1s InterpolantComputationTime, 225 NumberOfCodeBlocks, 225 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 218 ConstructedInterpolants, 7 QuantifiedInterpolants, 3374 SizeOfPredicates, 18 NumberOfNonLiveVariables, 168 ConjunctsInSsa, 73 ConjunctsInUnsatCore, 7 InterpolantComputations, 6 PerfectInterpolantSequences, 139/140 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! [2023-11-12 01:04:28,020 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8807c1bb-6dff-446a-b72a-00f2c3d4ebe8/bin/utaipan-verify-NcY6lQBIFX/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