./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_linked_list_begin_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c54d012-2dc3-49ba-a13d-c90e65ffec40/bin/utaipan-verify-nQ1chXbOIh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c54d012-2dc3-49ba-a13d-c90e65ffec40/bin/utaipan-verify-nQ1chXbOIh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c54d012-2dc3-49ba-a13d-c90e65ffec40/bin/utaipan-verify-nQ1chXbOIh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c54d012-2dc3-49ba-a13d-c90e65ffec40/bin/utaipan-verify-nQ1chXbOIh/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_linked_list_begin_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c54d012-2dc3-49ba-a13d-c90e65ffec40/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c54d012-2dc3-49ba-a13d-c90e65ffec40/bin/utaipan-verify-nQ1chXbOIh --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 b8488bc4b38d88c79bc520e9824284003ed2f71ce856a53cf11e7fc61dbeef4b --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 14:21:55,714 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 14:21:55,800 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c54d012-2dc3-49ba-a13d-c90e65ffec40/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Reach-64bit-Taipan_Default.epf [2023-12-02 14:21:55,805 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-02 14:21:55,806 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-02 14:21:55,832 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 14:21:55,833 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-02 14:21:55,833 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-02 14:21:55,834 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 14:21:55,835 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-02 14:21:55,835 INFO L153 SettingsManager]: * User list type=DISABLED [2023-12-02 14:21:55,836 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-12-02 14:21:55,836 INFO L153 SettingsManager]: * Explicit value domain=true [2023-12-02 14:21:55,837 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-12-02 14:21:55,837 INFO L153 SettingsManager]: * Octagon Domain=false [2023-12-02 14:21:55,838 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-12-02 14:21:55,838 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-12-02 14:21:55,839 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-12-02 14:21:55,839 INFO L153 SettingsManager]: * Interval Domain=false [2023-12-02 14:21:55,840 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-12-02 14:21:55,841 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-12-02 14:21:55,841 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-12-02 14:21:55,842 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 14:21:55,843 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 14:21:55,843 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-02 14:21:55,844 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 14:21:55,844 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 14:21:55,844 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 14:21:55,845 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 14:21:55,845 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 14:21:55,846 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 14:21:55,846 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 14:21:55,846 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-02 14:21:55,847 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-02 14:21:55,847 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 14:21:55,847 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 14:21:55,848 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 14:21:55,848 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-02 14:21:55,848 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-12-02 14:21:55,848 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-02 14:21:55,848 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-02 14:21:55,849 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-02 14:21:55,849 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-12-02 14:21:55,849 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-02 14:21:55,849 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_1c54d012-2dc3-49ba-a13d-c90e65ffec40/bin/utaipan-verify-nQ1chXbOIh/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c54d012-2dc3-49ba-a13d-c90e65ffec40/bin/utaipan-verify-nQ1chXbOIh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b8488bc4b38d88c79bc520e9824284003ed2f71ce856a53cf11e7fc61dbeef4b [2023-12-02 14:21:56,078 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 14:21:56,115 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 14:21:56,117 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 14:21:56,118 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 14:21:56,119 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 14:21:56,120 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c54d012-2dc3-49ba-a13d-c90e65ffec40/bin/utaipan-verify-nQ1chXbOIh/../../sv-benchmarks/c/aws-c-common/aws_linked_list_begin_harness.i [2023-12-02 14:21:58,835 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 14:21:59,200 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 14:21:59,201 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c54d012-2dc3-49ba-a13d-c90e65ffec40/sv-benchmarks/c/aws-c-common/aws_linked_list_begin_harness.i [2023-12-02 14:21:59,230 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c54d012-2dc3-49ba-a13d-c90e65ffec40/bin/utaipan-verify-nQ1chXbOIh/data/9abfd2e89/8010f820433c4ba8a3aaa8c6c914e210/FLAG56de76cdd [2023-12-02 14:21:59,245 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c54d012-2dc3-49ba-a13d-c90e65ffec40/bin/utaipan-verify-nQ1chXbOIh/data/9abfd2e89/8010f820433c4ba8a3aaa8c6c914e210 [2023-12-02 14:21:59,248 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 14:21:59,249 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 14:21:59,251 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 14:21:59,251 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 14:21:59,256 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 14:21:59,257 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 02:21:59" (1/1) ... [2023-12-02 14:21:59,258 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@604925ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:21:59, skipping insertion in model container [2023-12-02 14:21:59,258 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 02:21:59" (1/1) ... [2023-12-02 14:21:59,373 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 14:21:59,598 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_1c54d012-2dc3-49ba-a13d-c90e65ffec40/sv-benchmarks/c/aws-c-common/aws_linked_list_begin_harness.i[4495,4508] [2023-12-02 14:21:59,606 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_1c54d012-2dc3-49ba-a13d-c90e65ffec40/sv-benchmarks/c/aws-c-common/aws_linked_list_begin_harness.i[4555,4568] [2023-12-02 14:22:00,512 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 14:22:00,513 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 14:22:00,514 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 14:22:00,515 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 14:22:00,516 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 14:22:00,531 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 14:22:00,532 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 14:22:00,534 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 14:22:00,535 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 14:22:00,537 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 14:22:00,538 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 14:22:00,539 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 14:22:00,539 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 14:22:00,936 WARN L638 FunctionHandler]: implicit declaration of function __atomic_load_n [2023-12-02 14:22:00,938 WARN L638 FunctionHandler]: implicit declaration of function __atomic_store_n [2023-12-02 14:22:00,939 WARN L638 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2023-12-02 14:22:00,940 WARN L638 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2023-12-02 14:22:00,941 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2023-12-02 14:22:00,942 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2023-12-02 14:22:00,943 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2023-12-02 14:22:00,944 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2023-12-02 14:22:00,944 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2023-12-02 14:22:00,945 WARN L638 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2023-12-02 14:22:01,122 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 14:22:01,140 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 14:22:01,153 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_1c54d012-2dc3-49ba-a13d-c90e65ffec40/sv-benchmarks/c/aws-c-common/aws_linked_list_begin_harness.i[4495,4508] [2023-12-02 14:22:01,154 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_1c54d012-2dc3-49ba-a13d-c90e65ffec40/sv-benchmarks/c/aws-c-common/aws_linked_list_begin_harness.i[4555,4568] [2023-12-02 14:22:01,194 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 14:22:01,195 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 14:22:01,195 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 14:22:01,196 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 14:22:01,197 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 14:22:01,205 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 14:22:01,206 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 14:22:01,207 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 14:22:01,207 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 14:22:01,208 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 14:22:01,209 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 14:22:01,210 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 14:22:01,210 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 14:22:01,246 WARN L638 FunctionHandler]: implicit declaration of function __atomic_load_n [2023-12-02 14:22:01,247 WARN L638 FunctionHandler]: implicit declaration of function __atomic_store_n [2023-12-02 14:22:01,248 WARN L638 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2023-12-02 14:22:01,248 WARN L638 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2023-12-02 14:22:01,250 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2023-12-02 14:22:01,250 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2023-12-02 14:22:01,251 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2023-12-02 14:22:01,251 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2023-12-02 14:22:01,252 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2023-12-02 14:22:01,252 WARN L638 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2023-12-02 14:22:01,290 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 14:22:01,593 WARN L675 CHandler]: The function __atomic_fetch_or is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 14:22:01,594 WARN L675 CHandler]: The function __atomic_fetch_sub is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 14:22:01,594 WARN L675 CHandler]: The function __atomic_exchange_n is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 14:22:01,594 WARN L675 CHandler]: The function __atomic_fetch_xor is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 14:22:01,594 WARN L675 CHandler]: The function htons is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 14:22:01,594 WARN L675 CHandler]: The function ntohl is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 14:22:01,594 WARN L675 CHandler]: The function __atomic_compare_exchange_n is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 14:22:01,594 WARN L675 CHandler]: The function __atomic_fetch_add is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 14:22:01,595 WARN L675 CHandler]: The function htonl is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 14:22:01,595 WARN L675 CHandler]: The function __atomic_store_n is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 14:22:01,595 WARN L675 CHandler]: The function ntohs is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 14:22:01,595 WARN L675 CHandler]: The function __atomic_load_n is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 14:22:01,595 WARN L675 CHandler]: The function memcmp is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 14:22:01,595 WARN L675 CHandler]: The function __atomic_thread_fence is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 14:22:01,595 WARN L675 CHandler]: The function __atomic_fetch_and is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 14:22:01,595 WARN L675 CHandler]: The function aws_array_list_ensure_capacity is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 14:22:01,602 INFO L206 MainTranslator]: Completed translation [2023-12-02 14:22:01,602 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:22:01 WrapperNode [2023-12-02 14:22:01,603 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 14:22:01,603 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 14:22:01,603 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 14:22:01,604 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 14:22:01,609 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:22:01" (1/1) ... [2023-12-02 14:22:01,673 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:22:01" (1/1) ... [2023-12-02 14:22:01,714 INFO L138 Inliner]: procedures = 678, calls = 1041, calls flagged for inlining = 52, calls inlined = 6, statements flattened = 141 [2023-12-02 14:22:01,715 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 14:22:01,715 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 14:22:01,715 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 14:22:01,716 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 14:22:01,724 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:22:01" (1/1) ... [2023-12-02 14:22:01,725 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:22:01" (1/1) ... [2023-12-02 14:22:01,729 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:22:01" (1/1) ... [2023-12-02 14:22:01,730 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:22:01" (1/1) ... [2023-12-02 14:22:01,745 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:22:01" (1/1) ... [2023-12-02 14:22:01,749 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:22:01" (1/1) ... [2023-12-02 14:22:01,753 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:22:01" (1/1) ... [2023-12-02 14:22:01,756 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:22:01" (1/1) ... [2023-12-02 14:22:01,762 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 14:22:01,763 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 14:22:01,763 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 14:22:01,763 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 14:22:01,764 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:22:01" (1/1) ... [2023-12-02 14:22:01,770 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 14:22:01,784 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c54d012-2dc3-49ba-a13d-c90e65ffec40/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 14:22:01,811 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c54d012-2dc3-49ba-a13d-c90e65ffec40/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-12-02 14:22:01,812 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c54d012-2dc3-49ba-a13d-c90e65ffec40/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-12-02 14:22:01,843 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-12-02 14:22:01,844 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-12-02 14:22:01,844 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-12-02 14:22:01,844 INFO L130 BoogieDeclarations]: Found specification of procedure aws_linked_list_node_next_is_valid [2023-12-02 14:22:01,844 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_linked_list_node_next_is_valid [2023-12-02 14:22:01,844 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-12-02 14:22:01,844 INFO L130 BoogieDeclarations]: Found specification of procedure aws_linked_list_is_valid [2023-12-02 14:22:01,844 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_linked_list_is_valid [2023-12-02 14:22:01,844 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 14:22:01,844 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-12-02 14:22:01,845 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 14:22:01,852 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 14:22:01,852 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-02 14:22:01,853 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-02 14:22:01,853 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-12-02 14:22:01,853 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-12-02 14:22:01,853 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-12-02 14:22:01,853 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2023-12-02 14:22:01,853 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2023-12-02 14:22:01,854 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-02 14:22:02,053 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 14:22:02,055 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 14:22:02,285 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 14:22:02,388 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 14:22:02,388 INFO L309 CfgBuilder]: Removed 2 assume(true) statements. [2023-12-02 14:22:02,390 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 02:22:02 BoogieIcfgContainer [2023-12-02 14:22:02,390 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 14:22:02,392 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-02 14:22:02,393 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-02 14:22:02,396 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-02 14:22:02,396 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 02:21:59" (1/3) ... [2023-12-02 14:22:02,397 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f3c76f2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 02:22:02, skipping insertion in model container [2023-12-02 14:22:02,397 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:22:01" (2/3) ... [2023-12-02 14:22:02,397 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f3c76f2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 02:22:02, skipping insertion in model container [2023-12-02 14:22:02,397 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 02:22:02" (3/3) ... [2023-12-02 14:22:02,399 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_linked_list_begin_harness.i [2023-12-02 14:22:02,417 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-02 14:22:02,418 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-02 14:22:02,467 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-02 14:22:02,474 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;@440eaf96, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-02 14:22:02,474 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-02 14:22:02,478 INFO L276 IsEmpty]: Start isEmpty. Operand has 46 states, 26 states have (on average 1.3076923076923077) internal successors, (34), 27 states have internal predecessors, (34), 13 states have call successors, (13), 5 states have call predecessors, (13), 5 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2023-12-02 14:22:02,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2023-12-02 14:22:02,488 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 14:22:02,488 INFO L195 NwaCegarLoop]: trace histogram [3, 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] [2023-12-02 14:22:02,489 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 14:22:02,494 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 14:22:02,494 INFO L85 PathProgramCache]: Analyzing trace with hash -506232321, now seen corresponding path program 1 times [2023-12-02 14:22:02,504 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 14:22:02,504 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2080028302] [2023-12-02 14:22:02,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 14:22:02,505 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 14:22:02,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 14:22:03,131 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 1 proven. 5 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-12-02 14:22:03,131 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 14:22:03,132 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2080028302] [2023-12-02 14:22:03,132 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2080028302] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 14:22:03,132 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1481218289] [2023-12-02 14:22:03,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 14:22:03,133 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 14:22:03,133 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c54d012-2dc3-49ba-a13d-c90e65ffec40/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 14:22:03,135 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c54d012-2dc3-49ba-a13d-c90e65ffec40/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 14:22:03,142 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c54d012-2dc3-49ba-a13d-c90e65ffec40/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-02 14:22:03,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 14:22:03,335 INFO L262 TraceCheckSpWp]: Trace formula consists of 265 conjuncts, 65 conjunts are in the unsatisfiable core [2023-12-02 14:22:03,347 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 14:22:03,522 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 15 [2023-12-02 14:22:03,538 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 15 [2023-12-02 14:22:03,621 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 28 [2023-12-02 14:22:03,637 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 35 [2023-12-02 14:22:05,701 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-02 14:22:05,701 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 14:22:05,701 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1481218289] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 14:22:05,701 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-02 14:22:05,702 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [5] total 12 [2023-12-02 14:22:05,703 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [995166206] [2023-12-02 14:22:05,704 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 14:22:05,707 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-02 14:22:05,708 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 14:22:05,730 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-02 14:22:05,731 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2023-12-02 14:22:05,733 INFO L87 Difference]: Start difference. First operand has 46 states, 26 states have (on average 1.3076923076923077) internal successors, (34), 27 states have internal predecessors, (34), 13 states have call successors, (13), 5 states have call predecessors, (13), 5 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) Second operand has 9 states, 8 states have (on average 2.75) internal successors, (22), 9 states have internal predecessors, (22), 4 states have call successors, (8), 3 states have call predecessors, (8), 4 states have return successors, (7), 3 states have call predecessors, (7), 4 states have call successors, (7) [2023-12-02 14:22:06,390 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 14:22:06,390 INFO L93 Difference]: Finished difference Result 124 states and 173 transitions. [2023-12-02 14:22:06,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-02 14:22:06,392 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 2.75) internal successors, (22), 9 states have internal predecessors, (22), 4 states have call successors, (8), 3 states have call predecessors, (8), 4 states have return successors, (7), 3 states have call predecessors, (7), 4 states have call successors, (7) Word has length 37 [2023-12-02 14:22:06,393 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 14:22:06,398 INFO L225 Difference]: With dead ends: 124 [2023-12-02 14:22:06,399 INFO L226 Difference]: Without dead ends: 81 [2023-12-02 14:22:06,402 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 27 SyntacticMatches, 4 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2023-12-02 14:22:06,404 INFO L413 NwaCegarLoop]: 57 mSDtfsCounter, 34 mSDsluCounter, 187 mSDsCounter, 0 mSdLazyCounter, 200 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 244 SdHoareTripleChecker+Invalid, 220 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 200 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-02 14:22:06,405 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 244 Invalid, 220 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 200 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-02 14:22:06,417 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81 states. [2023-12-02 14:22:06,445 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 79. [2023-12-02 14:22:06,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 79 states, 45 states have (on average 1.288888888888889) internal successors, (58), 47 states have internal predecessors, (58), 24 states have call successors, (24), 9 states have call predecessors, (24), 9 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2023-12-02 14:22:06,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 104 transitions. [2023-12-02 14:22:06,451 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 104 transitions. Word has length 37 [2023-12-02 14:22:06,452 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 14:22:06,452 INFO L495 AbstractCegarLoop]: Abstraction has 79 states and 104 transitions. [2023-12-02 14:22:06,452 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 2.75) internal successors, (22), 9 states have internal predecessors, (22), 4 states have call successors, (8), 3 states have call predecessors, (8), 4 states have return successors, (7), 3 states have call predecessors, (7), 4 states have call successors, (7) [2023-12-02 14:22:06,452 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 104 transitions. [2023-12-02 14:22:06,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2023-12-02 14:22:06,455 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 14:22:06,455 INFO L195 NwaCegarLoop]: trace histogram [3, 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] [2023-12-02 14:22:06,466 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c54d012-2dc3-49ba-a13d-c90e65ffec40/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-12-02 14:22:06,657 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c54d012-2dc3-49ba-a13d-c90e65ffec40/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 14:22:06,657 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 14:22:06,658 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 14:22:06,658 INFO L85 PathProgramCache]: Analyzing trace with hash -1923609863, now seen corresponding path program 1 times [2023-12-02 14:22:06,658 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 14:22:06,659 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1717323078] [2023-12-02 14:22:06,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 14:22:06,659 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 14:22:06,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 14:22:06,929 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 1 proven. 5 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2023-12-02 14:22:06,930 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 14:22:06,930 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1717323078] [2023-12-02 14:22:06,930 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1717323078] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 14:22:06,930 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1102082932] [2023-12-02 14:22:06,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 14:22:06,930 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 14:22:06,931 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c54d012-2dc3-49ba-a13d-c90e65ffec40/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 14:22:06,932 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c54d012-2dc3-49ba-a13d-c90e65ffec40/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 14:22:06,937 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c54d012-2dc3-49ba-a13d-c90e65ffec40/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-12-02 14:22:07,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 14:22:07,137 INFO L262 TraceCheckSpWp]: Trace formula consists of 314 conjuncts, 81 conjunts are in the unsatisfiable core [2023-12-02 14:22:07,147 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 14:22:07,259 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 15 [2023-12-02 14:22:07,273 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 15 [2023-12-02 14:22:07,369 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 36 [2023-12-02 14:22:07,376 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 14:22:07,377 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 21 [2023-12-02 14:22:07,393 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 36 [2023-12-02 14:22:07,400 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 14:22:07,401 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 16 [2023-12-02 14:22:07,523 INFO L349 Elim1Store]: treesize reduction 96, result has 23.2 percent of original size [2023-12-02 14:22:07,524 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 142 treesize of output 93 [2023-12-02 14:22:07,539 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 14:22:07,540 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 78 treesize of output 21 [2023-12-02 14:22:09,516 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 15 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-02 14:22:09,516 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 14:22:16,399 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-02 14:22:16,400 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 4 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 388 treesize of output 473 [2023-12-02 14:22:17,639 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-02 14:22:17,640 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 4 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 364 treesize of output 449 [2023-12-02 14:22:17,909 INFO L349 Elim1Store]: treesize reduction 36, result has 2.7 percent of original size [2023-12-02 14:22:17,910 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 3 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 3 case distinctions, treesize of input 43 treesize of output 58 [2023-12-02 14:22:18,023 INFO L349 Elim1Store]: treesize reduction 36, result has 2.7 percent of original size [2023-12-02 14:22:18,024 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 3 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 3 case distinctions, treesize of input 43 treesize of output 58 [2023-12-02 14:22:18,097 INFO L349 Elim1Store]: treesize reduction 36, result has 2.7 percent of original size [2023-12-02 14:22:18,098 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 3 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 3 case distinctions, treesize of input 43 treesize of output 58 [2023-12-02 14:22:18,225 INFO L349 Elim1Store]: treesize reduction 36, result has 2.7 percent of original size [2023-12-02 14:22:18,226 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 3 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 3 case distinctions, treesize of input 43 treesize of output 58 [2023-12-02 14:22:18,354 INFO L349 Elim1Store]: treesize reduction 36, result has 2.7 percent of original size [2023-12-02 14:22:18,354 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 3 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 3 case distinctions, treesize of input 43 treesize of output 58 [2023-12-02 14:22:18,637 INFO L224 Elim1Store]: Index analysis took 110 ms [2023-12-02 14:22:18,649 INFO L349 Elim1Store]: treesize reduction 36, result has 2.7 percent of original size [2023-12-02 14:22:18,649 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 3 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 3 case distinctions, treesize of input 43 treesize of output 58 [2023-12-02 14:22:20,446 INFO L349 Elim1Store]: treesize reduction 28, result has 3.4 percent of original size [2023-12-02 14:22:20,446 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 39 treesize of output 19 [2023-12-02 14:22:20,543 INFO L349 Elim1Store]: treesize reduction 73, result has 7.6 percent of original size [2023-12-02 14:22:20,544 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 4 case distinctions, treesize of input 124 treesize of output 109 [2023-12-02 14:22:20,663 INFO L349 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2023-12-02 14:22:20,664 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 14 treesize of output 1 [2023-12-02 14:22:21,030 INFO L349 Elim1Store]: treesize reduction 25, result has 3.8 percent of original size [2023-12-02 14:22:21,031 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 33 treesize of output 19 [2023-12-02 14:22:21,555 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-02 14:22:21,592 INFO L349 Elim1Store]: treesize reduction 43, result has 12.2 percent of original size [2023-12-02 14:22:21,593 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 78 treesize of output 73 [2023-12-02 14:22:21,797 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 18 [2023-12-02 14:22:21,823 INFO L349 Elim1Store]: treesize reduction 28, result has 3.4 percent of original size [2023-12-02 14:22:21,823 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 4 case distinctions, treesize of input 45 treesize of output 40 [2023-12-02 14:22:21,865 INFO L349 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2023-12-02 14:22:21,865 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 21 treesize of output 4 [2023-12-02 14:22:21,879 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 18 [2023-12-02 14:22:21,896 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-02 14:22:21,925 INFO L349 Elim1Store]: treesize reduction 25, result has 30.6 percent of original size [2023-12-02 14:22:21,925 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 5 case distinctions, treesize of input 38 treesize of output 35 [2023-12-02 14:22:21,951 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 18 [2023-12-02 14:22:21,959 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 18 [2023-12-02 14:22:22,081 INFO L349 Elim1Store]: treesize reduction 72, result has 17.2 percent of original size [2023-12-02 14:22:22,081 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 7 case distinctions, treesize of input 236 treesize of output 201 [2023-12-02 14:22:22,144 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 4 [2023-12-02 14:22:22,160 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-02 14:22:22,198 INFO L349 Elim1Store]: treesize reduction 43, result has 12.2 percent of original size [2023-12-02 14:22:22,198 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 78 treesize of output 73 [2023-12-02 14:22:22,249 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 18 [2023-12-02 14:22:22,317 INFO L349 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2023-12-02 14:22:22,317 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 21 treesize of output 4 [2023-12-02 14:22:22,685 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse13 (+ |c_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.offset| 8)) (.cse19 (+ |c_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.offset| 16)) (.cse8 (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_ensure_linked_list_is_allocated_~curr~0#1.base|)) (.cse1 (+ |c_ULTIMATE.start_ensure_linked_list_is_allocated_~list#1.offset| 24)) (.cse2 (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_ensure_linked_list_is_allocated_~curr~0#1.base|)) (.cse3 (+ |c_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.offset| 24))) (and (forall ((v_arrayElimArr_6 (Array Int Int)) (|v_ULTIMATE.start_ensure_linked_list_is_allocated_~node~0#1.offset_16| Int) (v_ArrVal_175 Int) (v_prenex_1 Int)) (or (forall ((v_subst_4 Int) (v_subst_3 Int)) (or (forall ((v_arrayElimArr_8 (Array Int Int))) (or (not (= (select (select (let ((.cse0 (store (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_ensure_linked_list_is_allocated_~curr~0#1.base| (store .cse2 |c_ULTIMATE.start_ensure_linked_list_is_allocated_~curr~0#1.offset| v_ArrVal_175)) v_ArrVal_175 v_arrayElimArr_8))) (store .cse0 |c_ULTIMATE.start_ensure_linked_list_is_allocated_~list#1.base| (store (select .cse0 |c_ULTIMATE.start_ensure_linked_list_is_allocated_~list#1.base|) .cse1 v_ArrVal_175))) |c_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base|) .cse3) 0)) (forall ((v_DerPreprocessor_88 Int) (v_DerPreprocessor_89 Int) (v_DerPreprocessor_87 Int) (v_subst_1 Int)) (let ((.cse5 (store (store (store v_arrayElimArr_8 v_subst_3 v_DerPreprocessor_87) v_subst_4 v_DerPreprocessor_88) v_subst_1 v_DerPreprocessor_89))) (let ((.cse4 (select .cse5 v_subst_3)) (.cse6 (select .cse5 v_subst_4))) (or (not (= v_DerPreprocessor_87 .cse4)) (not (= (store (store v_arrayElimArr_8 v_subst_3 .cse4) v_subst_1 |c_ULTIMATE.start_ensure_linked_list_is_allocated_~list#1.base|) .cse5)) (not (= v_DerPreprocessor_88 .cse6)) (not (= |c_ULTIMATE.start_ensure_linked_list_is_allocated_~list#1.base| .cse6)))))) (not (= |c_ULTIMATE.start_ensure_linked_list_is_allocated_~list#1.base| (select v_arrayElimArr_8 v_subst_3))))) (= v_subst_4 v_subst_3))) (not (= (select (select (let ((.cse7 (store (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_ensure_linked_list_is_allocated_~curr~0#1.base| (store .cse8 |c_ULTIMATE.start_ensure_linked_list_is_allocated_~curr~0#1.offset| |v_ULTIMATE.start_ensure_linked_list_is_allocated_~node~0#1.offset_16|)) v_ArrVal_175 v_arrayElimArr_6))) (store .cse7 |c_ULTIMATE.start_ensure_linked_list_is_allocated_~list#1.base| (store (select .cse7 |c_ULTIMATE.start_ensure_linked_list_is_allocated_~list#1.base|) .cse1 v_prenex_1))) |c_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base|) .cse3) 0)) (= v_ArrVal_175 0) (< |c_#StackHeapBarrier| (+ v_ArrVal_175 1)))) (or (not (= |c_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base| 0)) (not (= |c_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.offset| 0))) (forall ((v_ArrVal_175 Int)) (or (forall ((v_arrayElimArr_6 (Array Int Int)) (v_arrayElimArr_8 (Array Int Int)) (v_DerPreprocessor_22 Int) (v_DerPreprocessor_39 Int) (v_DerPreprocessor_37 Int) (v_DerPreprocessor_38 Int) (v_subst_6 Int) (v_subst_5 Int) (v_subst_4 Int) (v_DerPreprocessor_21 Int) (|v_ULTIMATE.start_ensure_linked_list_is_allocated_~node~0#1.offset_16| Int) (v_prenex_1 Int)) (let ((.cse9 (store (store (store v_arrayElimArr_6 v_subst_6 v_DerPreprocessor_37) v_subst_5 v_DerPreprocessor_38) v_subst_4 v_DerPreprocessor_39))) (or (not (= (select .cse9 v_subst_5) v_DerPreprocessor_38)) (not (= (select (select (let ((.cse10 (store (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_ensure_linked_list_is_allocated_~curr~0#1.base| (store .cse2 |c_ULTIMATE.start_ensure_linked_list_is_allocated_~curr~0#1.offset| v_ArrVal_175)) v_ArrVal_175 v_arrayElimArr_8))) (store .cse10 |c_ULTIMATE.start_ensure_linked_list_is_allocated_~list#1.base| (store (select .cse10 |c_ULTIMATE.start_ensure_linked_list_is_allocated_~list#1.base|) .cse1 v_ArrVal_175))) |c_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base|) .cse3) 0)) (not (= (select (select (let ((.cse11 (store (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_ensure_linked_list_is_allocated_~curr~0#1.base| (store .cse8 |c_ULTIMATE.start_ensure_linked_list_is_allocated_~curr~0#1.offset| |v_ULTIMATE.start_ensure_linked_list_is_allocated_~node~0#1.offset_16|)) v_ArrVal_175 v_arrayElimArr_6))) (store .cse11 |c_ULTIMATE.start_ensure_linked_list_is_allocated_~list#1.base| (store (select .cse11 |c_ULTIMATE.start_ensure_linked_list_is_allocated_~list#1.base|) .cse1 v_prenex_1))) |c_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base|) .cse3) 0)) (not (= (store v_arrayElimArr_6 v_subst_4 v_DerPreprocessor_39) .cse9)) (not (= v_DerPreprocessor_37 (select .cse9 v_subst_6))) (not (= v_DerPreprocessor_21 (select (store (store v_arrayElimArr_6 v_subst_4 v_DerPreprocessor_21) v_subst_6 v_DerPreprocessor_22) v_subst_4))) (not (= |c_ULTIMATE.start_ensure_linked_list_is_allocated_~list#1.base| (select v_arrayElimArr_8 v_subst_4)))))) (= v_ArrVal_175 0) (< |c_#StackHeapBarrier| (+ v_ArrVal_175 1)))) (forall ((v_ArrVal_175 Int)) (or (forall ((v_arrayElimArr_9 (Array Int Int)) (v_subst_1 Int)) (or (not (= (select v_arrayElimArr_9 v_subst_1) |c_ULTIMATE.start_ensure_linked_list_is_allocated_~list#1.base|)) (= (select (select (let ((.cse12 (store (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_ensure_linked_list_is_allocated_~curr~0#1.base| (store .cse2 |c_ULTIMATE.start_ensure_linked_list_is_allocated_~curr~0#1.offset| v_ArrVal_175)) v_ArrVal_175 v_arrayElimArr_9))) (store .cse12 |c_ULTIMATE.start_ensure_linked_list_is_allocated_~list#1.base| (store (select .cse12 |c_ULTIMATE.start_ensure_linked_list_is_allocated_~list#1.base|) .cse1 v_ArrVal_175))) |c_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base|) .cse13) 0))) (= v_ArrVal_175 0) (< |c_#StackHeapBarrier| (+ v_ArrVal_175 1)))) (forall ((v_arrayElimArr_6 (Array Int Int)) (|v_ULTIMATE.start_ensure_linked_list_is_allocated_~node~0#1.offset_16| Int) (v_ArrVal_175 Int) (v_prenex_1 Int)) (or (forall ((v_subst_4 Int) (v_subst_3 Int)) (or (forall ((v_arrayElimArr_8 (Array Int Int))) (or (not (= (select (select (let ((.cse14 (store (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_ensure_linked_list_is_allocated_~curr~0#1.base| (store .cse2 |c_ULTIMATE.start_ensure_linked_list_is_allocated_~curr~0#1.offset| v_ArrVal_175)) v_ArrVal_175 v_arrayElimArr_8))) (store .cse14 |c_ULTIMATE.start_ensure_linked_list_is_allocated_~list#1.base| (store (select .cse14 |c_ULTIMATE.start_ensure_linked_list_is_allocated_~list#1.base|) .cse1 v_ArrVal_175))) |c_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base|) .cse3) 0)) (not (= |c_ULTIMATE.start_ensure_linked_list_is_allocated_~list#1.base| (select v_arrayElimArr_8 v_subst_3))) (forall ((v_DerPreprocessor_88 Int) (v_DerPreprocessor_89 Int) (v_DerPreprocessor_87 Int) (v_subst_1 Int)) (let ((.cse16 (store (store (store v_arrayElimArr_8 v_subst_3 v_DerPreprocessor_87) v_subst_4 v_DerPreprocessor_88) v_subst_1 v_DerPreprocessor_89))) (let ((.cse15 (select .cse16 v_subst_3))) (or (= v_subst_4 v_subst_1) (not (= v_DerPreprocessor_87 .cse15)) (not (= (store (store v_arrayElimArr_8 v_subst_3 .cse15) v_subst_1 |c_ULTIMATE.start_ensure_linked_list_is_allocated_~list#1.base|) .cse16)))))))) (= v_subst_4 v_subst_3))) (not (= (select (select (let ((.cse17 (store (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_ensure_linked_list_is_allocated_~curr~0#1.base| (store .cse8 |c_ULTIMATE.start_ensure_linked_list_is_allocated_~curr~0#1.offset| |v_ULTIMATE.start_ensure_linked_list_is_allocated_~node~0#1.offset_16|)) v_ArrVal_175 v_arrayElimArr_6))) (store .cse17 |c_ULTIMATE.start_ensure_linked_list_is_allocated_~list#1.base| (store (select .cse17 |c_ULTIMATE.start_ensure_linked_list_is_allocated_~list#1.base|) .cse1 v_prenex_1))) |c_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base|) .cse3) 0)) (= v_ArrVal_175 0) (< |c_#StackHeapBarrier| (+ v_ArrVal_175 1)))) (forall ((v_ArrVal_175 Int)) (or (forall ((v_arrayElimArr_5 (Array Int Int)) (|v_ULTIMATE.start_ensure_linked_list_is_allocated_~node~0#1.offset_16| Int) (v_prenex_3 Int)) (= (select (select (let ((.cse18 (store (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_ensure_linked_list_is_allocated_~curr~0#1.base| (store .cse8 |c_ULTIMATE.start_ensure_linked_list_is_allocated_~curr~0#1.offset| |v_ULTIMATE.start_ensure_linked_list_is_allocated_~node~0#1.offset_16|)) v_ArrVal_175 v_arrayElimArr_5))) (store .cse18 |c_ULTIMATE.start_ensure_linked_list_is_allocated_~list#1.base| (store (select .cse18 |c_ULTIMATE.start_ensure_linked_list_is_allocated_~list#1.base|) .cse1 v_prenex_3))) |c_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base|) .cse19) 0)) (= v_ArrVal_175 0) (< |c_#StackHeapBarrier| (+ v_ArrVal_175 1)))) (forall ((v_ArrVal_175 Int)) (or (forall ((v_DerPreprocessor_68 Int) (v_arrayElimArr_10 (Array Int Int)) (v_subst_2 Int) (v_subst_1 Int)) (or (not (= v_DerPreprocessor_68 (select (store (store v_arrayElimArr_10 v_subst_2 v_DerPreprocessor_68) v_subst_1 |c_ULTIMATE.start_ensure_linked_list_is_allocated_~list#1.base|) v_subst_2))) (not (= |c_ULTIMATE.start_ensure_linked_list_is_allocated_~list#1.base| (select v_arrayElimArr_10 v_subst_2))) (= (select (select (let ((.cse20 (store (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_ensure_linked_list_is_allocated_~curr~0#1.base| (store .cse2 |c_ULTIMATE.start_ensure_linked_list_is_allocated_~curr~0#1.offset| v_ArrVal_175)) v_ArrVal_175 v_arrayElimArr_10))) (store .cse20 |c_ULTIMATE.start_ensure_linked_list_is_allocated_~list#1.base| (store (select .cse20 |c_ULTIMATE.start_ensure_linked_list_is_allocated_~list#1.base|) .cse1 v_ArrVal_175))) |c_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base|) .cse19) 0))) (= v_ArrVal_175 0) (< |c_#StackHeapBarrier| (+ v_ArrVal_175 1)))) (forall ((v_ArrVal_175 Int)) (or (forall ((v_arrayElimArr_10 (Array Int Int)) (v_subst_2 Int)) (or (not (= |c_ULTIMATE.start_ensure_linked_list_is_allocated_~list#1.base| (select v_arrayElimArr_10 v_subst_2))) (= (select (select (let ((.cse21 (store (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_ensure_linked_list_is_allocated_~curr~0#1.base| (store .cse2 |c_ULTIMATE.start_ensure_linked_list_is_allocated_~curr~0#1.offset| v_ArrVal_175)) v_ArrVal_175 v_arrayElimArr_10))) (store .cse21 |c_ULTIMATE.start_ensure_linked_list_is_allocated_~list#1.base| (store (select .cse21 |c_ULTIMATE.start_ensure_linked_list_is_allocated_~list#1.base|) .cse1 v_ArrVal_175))) |c_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base|) .cse19) 0))) (= v_ArrVal_175 0) (< |c_#StackHeapBarrier| (+ v_ArrVal_175 1)))) (forall ((v_ArrVal_175 Int)) (or (forall ((|v_ULTIMATE.start_ensure_linked_list_is_allocated_~node~0#1.offset_16| Int) (v_arrayElimArr_3 (Array Int Int)) (v_ArrVal_182 Int)) (not (= (select (select (let ((.cse22 (store (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_ensure_linked_list_is_allocated_~curr~0#1.base| (store .cse8 |c_ULTIMATE.start_ensure_linked_list_is_allocated_~curr~0#1.offset| |v_ULTIMATE.start_ensure_linked_list_is_allocated_~node~0#1.offset_16|)) v_ArrVal_175 v_arrayElimArr_3))) (store .cse22 |c_ULTIMATE.start_ensure_linked_list_is_allocated_~list#1.base| (store (select .cse22 |c_ULTIMATE.start_ensure_linked_list_is_allocated_~list#1.base|) .cse1 v_ArrVal_182))) |c_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base|) |c_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.offset|) 0))) (= v_ArrVal_175 0) (< |c_#StackHeapBarrier| (+ v_ArrVal_175 1)) (forall ((v_DerPreprocessor_79 Int) (v_arrayElimArr_7 (Array Int Int)) (v_subst_4 Int) (v_subst_1 Int)) (or (not (= (select (select (let ((.cse23 (store (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_ensure_linked_list_is_allocated_~curr~0#1.base| (store .cse2 |c_ULTIMATE.start_ensure_linked_list_is_allocated_~curr~0#1.offset| v_ArrVal_175)) v_ArrVal_175 v_arrayElimArr_7))) (store .cse23 |c_ULTIMATE.start_ensure_linked_list_is_allocated_~list#1.base| (store (select .cse23 |c_ULTIMATE.start_ensure_linked_list_is_allocated_~list#1.base|) .cse1 v_ArrVal_175))) |c_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base|) |c_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.offset|) 0)) (not (= v_DerPreprocessor_79 (select (store (store v_arrayElimArr_7 v_subst_4 v_DerPreprocessor_79) v_subst_1 |c_ULTIMATE.start_ensure_linked_list_is_allocated_~list#1.base|) v_subst_4))) (not (= |c_ULTIMATE.start_ensure_linked_list_is_allocated_~list#1.base| (select v_arrayElimArr_7 v_subst_4))))))) (forall ((v_ArrVal_175 Int)) (or (= v_ArrVal_175 0) (forall ((v_arrayElimArr_6 (Array Int Int)) (v_arrayElimArr_8 (Array Int Int)) (|v_ULTIMATE.start_ensure_linked_list_is_allocated_~node~0#1.offset_16| Int) (v_prenex_1 Int) (v_subst_4 Int) (v_subst_3 Int) (v_DerPreprocessor_62 Int) (v_DerPreprocessor_63 Int)) (or (not (= (select (select (let ((.cse24 (store (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_ensure_linked_list_is_allocated_~curr~0#1.base| (store .cse2 |c_ULTIMATE.start_ensure_linked_list_is_allocated_~curr~0#1.offset| v_ArrVal_175)) v_ArrVal_175 v_arrayElimArr_8))) (store .cse24 |c_ULTIMATE.start_ensure_linked_list_is_allocated_~list#1.base| (store (select .cse24 |c_ULTIMATE.start_ensure_linked_list_is_allocated_~list#1.base|) .cse1 v_ArrVal_175))) |c_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base|) .cse3) 0)) (not (= (select (select (let ((.cse25 (store (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_ensure_linked_list_is_allocated_~curr~0#1.base| (store .cse8 |c_ULTIMATE.start_ensure_linked_list_is_allocated_~curr~0#1.offset| |v_ULTIMATE.start_ensure_linked_list_is_allocated_~node~0#1.offset_16|)) v_ArrVal_175 v_arrayElimArr_6))) (store .cse25 |c_ULTIMATE.start_ensure_linked_list_is_allocated_~list#1.base| (store (select .cse25 |c_ULTIMATE.start_ensure_linked_list_is_allocated_~list#1.base|) .cse1 v_prenex_1))) |c_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base|) .cse3) 0)) (not (= |c_ULTIMATE.start_ensure_linked_list_is_allocated_~list#1.base| (select v_arrayElimArr_8 v_subst_3))) (not (= v_DerPreprocessor_62 (select (store (store v_arrayElimArr_6 v_subst_3 v_DerPreprocessor_62) v_subst_4 v_DerPreprocessor_63) v_subst_3))))) (< |c_#StackHeapBarrier| (+ v_ArrVal_175 1)))) (forall ((v_ArrVal_175 Int)) (or (forall ((|v_ULTIMATE.start_ensure_linked_list_is_allocated_~node~0#1.offset_16| Int) (v_prenex_5 Int) (v_arrayElimArr_4 (Array Int Int)) (v_DerPreprocessor_60 Int) (v_subst_5 Int) (v_DerPreprocessor_61 Int) (v_subst_4 Int)) (or (not (= v_DerPreprocessor_60 (select (store (store v_arrayElimArr_4 v_subst_5 v_DerPreprocessor_60) v_subst_4 v_DerPreprocessor_61) v_subst_5))) (= (select (select (let ((.cse26 (store (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_ensure_linked_list_is_allocated_~curr~0#1.base| (store .cse8 |c_ULTIMATE.start_ensure_linked_list_is_allocated_~curr~0#1.offset| |v_ULTIMATE.start_ensure_linked_list_is_allocated_~node~0#1.offset_16|)) v_ArrVal_175 v_arrayElimArr_4))) (store .cse26 |c_ULTIMATE.start_ensure_linked_list_is_allocated_~list#1.base| (store (select .cse26 |c_ULTIMATE.start_ensure_linked_list_is_allocated_~list#1.base|) .cse1 v_prenex_5))) |c_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base|) .cse13) 0))) (= v_ArrVal_175 0) (< |c_#StackHeapBarrier| (+ v_ArrVal_175 1)))) (forall ((v_ArrVal_175 Int)) (or (= v_ArrVal_175 0) (< |c_#StackHeapBarrier| (+ v_ArrVal_175 1)) (forall ((v_arrayElimArr_10 (Array Int Int)) (v_subst_4 Int)) (or (not (= |c_ULTIMATE.start_ensure_linked_list_is_allocated_~list#1.base| (select v_arrayElimArr_10 v_subst_4))) (= (select (select (let ((.cse27 (store (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_ensure_linked_list_is_allocated_~curr~0#1.base| (store .cse2 |c_ULTIMATE.start_ensure_linked_list_is_allocated_~curr~0#1.offset| v_ArrVal_175)) v_ArrVal_175 v_arrayElimArr_10))) (store .cse27 |c_ULTIMATE.start_ensure_linked_list_is_allocated_~list#1.base| (store (select .cse27 |c_ULTIMATE.start_ensure_linked_list_is_allocated_~list#1.base|) .cse1 v_ArrVal_175))) |c_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base|) .cse19) 0))))) (forall ((v_arrayElimArr_10 (Array Int Int)) (v_ArrVal_175 Int) (v_subst_2 Int)) (or (= v_ArrVal_175 0) (< |c_#StackHeapBarrier| (+ v_ArrVal_175 1)) (not (= |c_ULTIMATE.start_ensure_linked_list_is_allocated_~list#1.base| (select v_arrayElimArr_10 v_subst_2))) (= (select (select (let ((.cse28 (store (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_ensure_linked_list_is_allocated_~curr~0#1.base| (store .cse2 |c_ULTIMATE.start_ensure_linked_list_is_allocated_~curr~0#1.offset| v_ArrVal_175)) v_ArrVal_175 v_arrayElimArr_10))) (store .cse28 |c_ULTIMATE.start_ensure_linked_list_is_allocated_~list#1.base| (store (select .cse28 |c_ULTIMATE.start_ensure_linked_list_is_allocated_~list#1.base|) .cse1 v_ArrVal_175))) |c_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base|) .cse19) 0))) (forall ((v_ArrVal_175 Int)) (or (forall ((v_arrayElimArr_6 (Array Int Int)) (|v_ULTIMATE.start_ensure_linked_list_is_allocated_~node~0#1.offset_16| Int) (v_prenex_1 Int)) (not (= (select (select (let ((.cse29 (store (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_ensure_linked_list_is_allocated_~curr~0#1.base| (store .cse8 |c_ULTIMATE.start_ensure_linked_list_is_allocated_~curr~0#1.offset| |v_ULTIMATE.start_ensure_linked_list_is_allocated_~node~0#1.offset_16|)) v_ArrVal_175 v_arrayElimArr_6))) (store .cse29 |c_ULTIMATE.start_ensure_linked_list_is_allocated_~list#1.base| (store (select .cse29 |c_ULTIMATE.start_ensure_linked_list_is_allocated_~list#1.base|) .cse1 v_prenex_1))) |c_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base|) .cse3) 0))) (= v_ArrVal_175 0) (< |c_#StackHeapBarrier| (+ v_ArrVal_175 1)) (forall ((v_arrayElimArr_8 (Array Int Int)) (v_subst_5 Int)) (or (not (= (select (select (let ((.cse30 (store (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_ensure_linked_list_is_allocated_~curr~0#1.base| (store .cse2 |c_ULTIMATE.start_ensure_linked_list_is_allocated_~curr~0#1.offset| v_ArrVal_175)) v_ArrVal_175 v_arrayElimArr_8))) (store .cse30 |c_ULTIMATE.start_ensure_linked_list_is_allocated_~list#1.base| (store (select .cse30 |c_ULTIMATE.start_ensure_linked_list_is_allocated_~list#1.base|) .cse1 v_ArrVal_175))) |c_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base|) .cse3) 0)) (not (= |c_ULTIMATE.start_ensure_linked_list_is_allocated_~list#1.base| (select v_arrayElimArr_8 v_subst_5))))))))) is different from false [2023-12-02 14:22:23,962 INFO L349 Elim1Store]: treesize reduction 86, result has 45.2 percent of original size [2023-12-02 14:22:23,963 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 4 case distinctions, treesize of input 116 treesize of output 144 [2023-12-02 14:22:23,991 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-02 14:22:23,991 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 230 treesize of output 204 [2023-12-02 14:22:24,017 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-02 14:22:24,018 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 171 treesize of output 167 [2023-12-02 14:22:24,061 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 4 [2023-12-02 14:22:24,250 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-02 14:22:24,250 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 71 treesize of output 79 [2023-12-02 14:22:24,334 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-02 14:22:24,337 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 14:22:24,354 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-02 14:22:24,354 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 3 case distinctions, treesize of input 35 treesize of output 46 [2023-12-02 14:22:24,362 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-02 14:22:24,366 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 29 [2023-12-02 14:22:24,373 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-02 14:22:24,377 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-02 14:22:24,386 INFO L349 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size [2023-12-02 14:22:24,387 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 15 [2023-12-02 14:22:24,397 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-02 14:22:24,398 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-02 14:22:24,401 WARN L214 Elim1Store]: Array PQE input equivalent to true [2023-12-02 14:22:24,410 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-02 14:22:24,411 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-02 14:22:24,415 WARN L214 Elim1Store]: Array PQE input equivalent to true [2023-12-02 14:22:24,420 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-02 14:22:24,421 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 14:22:24,425 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-02 14:22:24,426 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-02 14:22:24,430 INFO L349 Elim1Store]: treesize reduction 28, result has 3.4 percent of original size [2023-12-02 14:22:24,431 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 3 case distinctions, treesize of input 35 treesize of output 1 [2023-12-02 14:22:24,437 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-02 14:22:24,438 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-02 14:22:24,442 WARN L214 Elim1Store]: Array PQE input equivalent to true [2023-12-02 14:22:24,447 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-02 14:22:24,449 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 14:22:24,453 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-02 14:22:24,454 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-02 14:22:24,459 INFO L349 Elim1Store]: treesize reduction 28, result has 3.4 percent of original size [2023-12-02 14:22:24,460 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 3 case distinctions, treesize of input 35 treesize of output 1 [2023-12-02 14:22:24,465 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-02 14:22:24,466 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 14:22:24,471 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-02 14:22:24,471 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-02 14:22:24,476 INFO L349 Elim1Store]: treesize reduction 28, result has 3.4 percent of original size [2023-12-02 14:22:24,476 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 3 case distinctions, treesize of input 35 treesize of output 1 [2023-12-02 14:22:24,485 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-02 14:22:24,486 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-02 14:22:24,490 WARN L214 Elim1Store]: Array PQE input equivalent to true [2023-12-02 14:22:24,495 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-02 14:22:24,497 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 14:22:24,501 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-02 14:22:24,502 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-02 14:22:24,506 INFO L349 Elim1Store]: treesize reduction 28, result has 3.4 percent of original size [2023-12-02 14:22:24,507 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 3 case distinctions, treesize of input 35 treesize of output 1 [2023-12-02 14:22:24,511 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-02 14:22:24,513 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 14:22:24,517 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-02 14:22:24,518 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-02 14:22:24,522 INFO L349 Elim1Store]: treesize reduction 28, result has 3.4 percent of original size [2023-12-02 14:22:24,523 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 3 case distinctions, treesize of input 35 treesize of output 1 [2023-12-02 14:22:24,530 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-02 14:22:24,531 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-02 14:22:24,535 WARN L214 Elim1Store]: Array PQE input equivalent to true [2023-12-02 14:22:24,542 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-02 14:22:24,542 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-02 14:22:24,546 WARN L214 Elim1Store]: Array PQE input equivalent to true [2023-12-02 14:22:24,682 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 12 trivial. 1 not checked. [2023-12-02 14:22:24,682 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1102082932] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 14:22:24,682 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1452512970] [2023-12-02 14:22:24,703 INFO L159 IcfgInterpreter]: Started Sifa with 26 locations of interest [2023-12-02 14:22:24,704 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 14:22:24,708 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-12-02 14:22:24,713 INFO L176 IcfgInterpreter]: Starting interpretation [2023-12-02 14:22:24,713 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-12-02 14:22:27,376 INFO L197 IcfgInterpreter]: Interpreting procedure aws_linked_list_is_valid with input of size 105 for LOIs [2023-12-02 14:22:27,458 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 6 for LOIs [2023-12-02 14:22:27,460 INFO L197 IcfgInterpreter]: Interpreting procedure nondet_uint64_t with input of size 94 for LOIs [2023-12-02 14:22:27,471 INFO L180 IcfgInterpreter]: Interpretation finished [2023-12-02 14:22:30,386 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [1452512970] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 14:22:30,386 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2023-12-02 14:22:30,386 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [5, 10, 9] total 30 [2023-12-02 14:22:30,387 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [446037005] [2023-12-02 14:22:30,387 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 14:22:30,387 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-12-02 14:22:30,388 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 14:22:30,388 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-12-02 14:22:30,389 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=724, Unknown=2, NotChecked=54, Total=870 [2023-12-02 14:22:30,389 INFO L87 Difference]: Start difference. First operand 79 states and 104 transitions. Second operand has 12 states, 9 states have (on average 1.6666666666666667) internal successors, (15), 8 states have internal predecessors, (15), 4 states have call successors, (8), 4 states have call predecessors, (8), 3 states have return successors, (7), 4 states have call predecessors, (7), 4 states have call successors, (7) [2023-12-02 14:22:33,267 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 14:22:35,286 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 14:22:36,635 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 14:22:36,636 INFO L93 Difference]: Finished difference Result 144 states and 188 transitions. [2023-12-02 14:22:36,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-12-02 14:22:36,637 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 9 states have (on average 1.6666666666666667) internal successors, (15), 8 states have internal predecessors, (15), 4 states have call successors, (8), 4 states have call predecessors, (8), 3 states have return successors, (7), 4 states have call predecessors, (7), 4 states have call successors, (7) Word has length 38 [2023-12-02 14:22:36,637 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 14:22:36,640 INFO L225 Difference]: With dead ends: 144 [2023-12-02 14:22:36,640 INFO L226 Difference]: Without dead ends: 105 [2023-12-02 14:22:36,642 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 84 SyntacticMatches, 6 SemanticMatches, 32 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 274 ImplicationChecksByTransitivity, 6.4s TimeCoverageRelationStatistics Valid=117, Invalid=941, Unknown=2, NotChecked=62, Total=1122 [2023-12-02 14:22:36,643 INFO L413 NwaCegarLoop]: 41 mSDtfsCounter, 21 mSDsluCounter, 202 mSDsCounter, 0 mSdLazyCounter, 257 mSolverCounterSat, 4 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 243 SdHoareTripleChecker+Invalid, 264 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 257 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2023-12-02 14:22:36,643 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 243 Invalid, 264 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 257 Invalid, 3 Unknown, 0 Unchecked, 5.3s Time] [2023-12-02 14:22:36,644 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105 states. [2023-12-02 14:22:36,675 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105 to 103. [2023-12-02 14:22:36,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 103 states, 64 states have (on average 1.328125) internal successors, (85), 66 states have internal predecessors, (85), 26 states have call successors, (26), 12 states have call predecessors, (26), 12 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2023-12-02 14:22:36,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 135 transitions. [2023-12-02 14:22:36,677 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 135 transitions. Word has length 38 [2023-12-02 14:22:36,678 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 14:22:36,678 INFO L495 AbstractCegarLoop]: Abstraction has 103 states and 135 transitions. [2023-12-02 14:22:36,678 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 9 states have (on average 1.6666666666666667) internal successors, (15), 8 states have internal predecessors, (15), 4 states have call successors, (8), 4 states have call predecessors, (8), 3 states have return successors, (7), 4 states have call predecessors, (7), 4 states have call successors, (7) [2023-12-02 14:22:36,678 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 135 transitions. [2023-12-02 14:22:36,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2023-12-02 14:22:36,680 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 14:22:36,680 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 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] [2023-12-02 14:22:36,686 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c54d012-2dc3-49ba-a13d-c90e65ffec40/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-12-02 14:22:36,881 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c54d012-2dc3-49ba-a13d-c90e65ffec40/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2023-12-02 14:22:36,881 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 14:22:36,881 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 14:22:36,881 INFO L85 PathProgramCache]: Analyzing trace with hash 1593721365, now seen corresponding path program 1 times [2023-12-02 14:22:36,881 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 14:22:36,881 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1684533653] [2023-12-02 14:22:36,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 14:22:36,882 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 14:22:36,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 14:22:37,045 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2023-12-02 14:22:37,045 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 14:22:37,045 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1684533653] [2023-12-02 14:22:37,046 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1684533653] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 14:22:37,046 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1864601498] [2023-12-02 14:22:37,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 14:22:37,046 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 14:22:37,046 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c54d012-2dc3-49ba-a13d-c90e65ffec40/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 14:22:37,047 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c54d012-2dc3-49ba-a13d-c90e65ffec40/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 14:22:37,049 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c54d012-2dc3-49ba-a13d-c90e65ffec40/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-12-02 14:22:37,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 14:22:37,233 INFO L262 TraceCheckSpWp]: Trace formula consists of 328 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-02 14:22:37,236 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 14:22:37,293 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-12-02 14:22:37,293 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 14:22:37,293 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1864601498] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 14:22:37,293 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-02 14:22:37,293 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 10 [2023-12-02 14:22:37,293 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1102960946] [2023-12-02 14:22:37,293 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 14:22:37,294 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-02 14:22:37,294 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 14:22:37,295 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-02 14:22:37,295 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2023-12-02 14:22:37,295 INFO L87 Difference]: Start difference. First operand 103 states and 135 transitions. Second operand has 6 states, 6 states have (on average 3.5) internal successors, (21), 6 states have internal predecessors, (21), 2 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-02 14:22:37,452 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 14:22:37,452 INFO L93 Difference]: Finished difference Result 183 states and 239 transitions. [2023-12-02 14:22:37,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-02 14:22:37,453 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.5) internal successors, (21), 6 states have internal predecessors, (21), 2 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 40 [2023-12-02 14:22:37,453 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 14:22:37,455 INFO L225 Difference]: With dead ends: 183 [2023-12-02 14:22:37,455 INFO L226 Difference]: Without dead ends: 109 [2023-12-02 14:22:37,457 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2023-12-02 14:22:37,458 INFO L413 NwaCegarLoop]: 38 mSDtfsCounter, 29 mSDsluCounter, 113 mSDsCounter, 0 mSdLazyCounter, 94 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 151 SdHoareTripleChecker+Invalid, 97 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 94 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 14:22:37,458 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 151 Invalid, 97 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 94 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 14:22:37,459 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2023-12-02 14:22:37,494 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 109. [2023-12-02 14:22:37,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 109 states, 68 states have (on average 1.2794117647058822) internal successors, (87), 72 states have internal predecessors, (87), 26 states have call successors, (26), 12 states have call predecessors, (26), 14 states have return successors, (28), 24 states have call predecessors, (28), 24 states have call successors, (28) [2023-12-02 14:22:37,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 141 transitions. [2023-12-02 14:22:37,497 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 141 transitions. Word has length 40 [2023-12-02 14:22:37,497 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 14:22:37,497 INFO L495 AbstractCegarLoop]: Abstraction has 109 states and 141 transitions. [2023-12-02 14:22:37,497 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.5) internal successors, (21), 6 states have internal predecessors, (21), 2 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-02 14:22:37,498 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 141 transitions. [2023-12-02 14:22:37,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2023-12-02 14:22:37,500 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 14:22:37,500 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 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] [2023-12-02 14:22:37,506 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c54d012-2dc3-49ba-a13d-c90e65ffec40/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-12-02 14:22:37,700 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c54d012-2dc3-49ba-a13d-c90e65ffec40/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2023-12-02 14:22:37,701 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 14:22:37,701 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 14:22:37,701 INFO L85 PathProgramCache]: Analyzing trace with hash 500315867, now seen corresponding path program 1 times [2023-12-02 14:22:37,701 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 14:22:37,701 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1694007299] [2023-12-02 14:22:37,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 14:22:37,701 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 14:22:37,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 14:22:37,909 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2023-12-02 14:22:37,910 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 14:22:37,910 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1694007299] [2023-12-02 14:22:37,910 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1694007299] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 14:22:37,910 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [286977631] [2023-12-02 14:22:37,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 14:22:37,910 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 14:22:37,910 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c54d012-2dc3-49ba-a13d-c90e65ffec40/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 14:22:37,911 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c54d012-2dc3-49ba-a13d-c90e65ffec40/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 14:22:37,917 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c54d012-2dc3-49ba-a13d-c90e65ffec40/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-12-02 14:22:38,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 14:22:38,118 INFO L262 TraceCheckSpWp]: Trace formula consists of 335 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-02 14:22:38,120 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 14:22:38,180 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-12-02 14:22:38,180 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 14:22:38,180 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [286977631] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 14:22:38,180 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-02 14:22:38,180 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [7] total 12 [2023-12-02 14:22:38,180 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [429942217] [2023-12-02 14:22:38,180 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 14:22:38,181 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-02 14:22:38,181 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 14:22:38,181 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-02 14:22:38,182 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2023-12-02 14:22:38,182 INFO L87 Difference]: Start difference. First operand 109 states and 141 transitions. Second operand has 7 states, 7 states have (on average 3.2857142857142856) internal successors, (23), 7 states have internal predecessors, (23), 2 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-02 14:22:38,388 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 14:22:38,388 INFO L93 Difference]: Finished difference Result 223 states and 297 transitions. [2023-12-02 14:22:38,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-02 14:22:38,388 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.2857142857142856) internal successors, (23), 7 states have internal predecessors, (23), 2 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 42 [2023-12-02 14:22:38,389 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 14:22:38,391 INFO L225 Difference]: With dead ends: 223 [2023-12-02 14:22:38,391 INFO L226 Difference]: Without dead ends: 141 [2023-12-02 14:22:38,392 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=57, Invalid=215, Unknown=0, NotChecked=0, Total=272 [2023-12-02 14:22:38,393 INFO L413 NwaCegarLoop]: 36 mSDtfsCounter, 53 mSDsluCounter, 139 mSDsCounter, 0 mSdLazyCounter, 127 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 175 SdHoareTripleChecker+Invalid, 135 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 127 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 14:22:38,394 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 175 Invalid, 135 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 127 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 14:22:38,394 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 141 states. [2023-12-02 14:22:38,422 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 141 to 115. [2023-12-02 14:22:38,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 115 states, 74 states have (on average 1.2837837837837838) internal successors, (95), 78 states have internal predecessors, (95), 26 states have call successors, (26), 12 states have call predecessors, (26), 14 states have return successors, (28), 24 states have call predecessors, (28), 24 states have call successors, (28) [2023-12-02 14:22:38,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 149 transitions. [2023-12-02 14:22:38,425 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 149 transitions. Word has length 42 [2023-12-02 14:22:38,425 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 14:22:38,425 INFO L495 AbstractCegarLoop]: Abstraction has 115 states and 149 transitions. [2023-12-02 14:22:38,425 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.2857142857142856) internal successors, (23), 7 states have internal predecessors, (23), 2 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-02 14:22:38,425 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 149 transitions. [2023-12-02 14:22:38,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2023-12-02 14:22:38,427 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 14:22:38,428 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 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] [2023-12-02 14:22:38,434 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c54d012-2dc3-49ba-a13d-c90e65ffec40/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2023-12-02 14:22:38,628 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c54d012-2dc3-49ba-a13d-c90e65ffec40/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3 [2023-12-02 14:22:38,628 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 14:22:38,628 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 14:22:38,629 INFO L85 PathProgramCache]: Analyzing trace with hash -717766183, now seen corresponding path program 1 times [2023-12-02 14:22:38,629 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 14:22:38,629 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1846382086] [2023-12-02 14:22:38,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 14:22:38,629 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 14:22:38,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 14:22:38,886 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2023-12-02 14:22:38,886 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 14:22:38,887 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1846382086] [2023-12-02 14:22:38,887 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1846382086] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 14:22:38,887 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1000183462] [2023-12-02 14:22:38,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 14:22:38,887 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 14:22:38,887 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c54d012-2dc3-49ba-a13d-c90e65ffec40/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 14:22:38,888 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c54d012-2dc3-49ba-a13d-c90e65ffec40/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 14:22:38,901 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c54d012-2dc3-49ba-a13d-c90e65ffec40/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-12-02 14:22:39,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 14:22:39,112 INFO L262 TraceCheckSpWp]: Trace formula consists of 338 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-02 14:22:39,115 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 14:22:39,129 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2023-12-02 14:22:39,129 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 14:22:39,129 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1000183462] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 14:22:39,129 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-02 14:22:39,129 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 7 [2023-12-02 14:22:39,129 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1572645864] [2023-12-02 14:22:39,130 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 14:22:39,130 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 14:22:39,130 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 14:22:39,131 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 14:22:39,131 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-12-02 14:22:39,131 INFO L87 Difference]: Start difference. First operand 115 states and 149 transitions. Second operand has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-02 14:22:39,217 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 14:22:39,217 INFO L93 Difference]: Finished difference Result 219 states and 295 transitions. [2023-12-02 14:22:39,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 14:22:39,218 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 43 [2023-12-02 14:22:39,218 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 14:22:39,220 INFO L225 Difference]: With dead ends: 219 [2023-12-02 14:22:39,220 INFO L226 Difference]: Without dead ends: 133 [2023-12-02 14:22:39,221 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-12-02 14:22:39,222 INFO L413 NwaCegarLoop]: 46 mSDtfsCounter, 4 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 86 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 14:22:39,222 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 86 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 14:22:39,223 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133 states. [2023-12-02 14:22:39,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133 to 119. [2023-12-02 14:22:39,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 119 states, 78 states have (on average 1.2692307692307692) internal successors, (99), 82 states have internal predecessors, (99), 26 states have call successors, (26), 12 states have call predecessors, (26), 14 states have return successors, (28), 24 states have call predecessors, (28), 24 states have call successors, (28) [2023-12-02 14:22:39,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 153 transitions. [2023-12-02 14:22:39,253 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 153 transitions. Word has length 43 [2023-12-02 14:22:39,254 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 14:22:39,254 INFO L495 AbstractCegarLoop]: Abstraction has 119 states and 153 transitions. [2023-12-02 14:22:39,254 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-02 14:22:39,254 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 153 transitions. [2023-12-02 14:22:39,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2023-12-02 14:22:39,256 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 14:22:39,257 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 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, 1, 1] [2023-12-02 14:22:39,263 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c54d012-2dc3-49ba-a13d-c90e65ffec40/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2023-12-02 14:22:39,459 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c54d012-2dc3-49ba-a13d-c90e65ffec40/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 14:22:39,459 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 14:22:39,460 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 14:22:39,460 INFO L85 PathProgramCache]: Analyzing trace with hash 400186068, now seen corresponding path program 1 times [2023-12-02 14:22:39,460 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 14:22:39,460 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [610871008] [2023-12-02 14:22:39,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 14:22:39,460 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 14:22:39,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 14:22:39,714 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 1 proven. 5 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2023-12-02 14:22:39,715 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 14:22:39,715 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [610871008] [2023-12-02 14:22:39,715 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [610871008] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 14:22:39,715 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [918122114] [2023-12-02 14:22:39,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 14:22:39,715 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 14:22:39,715 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c54d012-2dc3-49ba-a13d-c90e65ffec40/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 14:22:39,716 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c54d012-2dc3-49ba-a13d-c90e65ffec40/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 14:22:39,719 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c54d012-2dc3-49ba-a13d-c90e65ffec40/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-12-02 14:22:39,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 14:22:39,928 INFO L262 TraceCheckSpWp]: Trace formula consists of 353 conjuncts, 70 conjunts are in the unsatisfiable core [2023-12-02 14:22:39,933 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 14:22:40,048 INFO L349 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2023-12-02 14:22:40,048 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 14 treesize of output 15 [2023-12-02 14:22:40,056 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-12-02 14:22:40,063 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 32 [2023-12-02 14:22:40,073 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 11 [2023-12-02 14:22:40,078 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 18 [2023-12-02 14:22:40,082 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2023-12-02 14:22:40,085 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 12 treesize of output 1 [2023-12-02 14:22:40,088 INFO L378 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 21 treesize of output 1 [2023-12-02 14:22:54,382 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 16 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 14:22:54,382 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 14:22:58,074 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-12-02 14:22:58,074 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [918122114] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 14:22:58,074 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1922237029] [2023-12-02 14:22:58,077 INFO L159 IcfgInterpreter]: Started Sifa with 34 locations of interest [2023-12-02 14:22:58,077 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 14:22:58,078 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-12-02 14:22:58,078 INFO L176 IcfgInterpreter]: Starting interpretation [2023-12-02 14:22:58,078 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-12-02 14:23:00,248 INFO L197 IcfgInterpreter]: Interpreting procedure aws_linked_list_is_valid with input of size 106 for LOIs [2023-12-02 14:23:00,349 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 17 for LOIs [2023-12-02 14:23:00,352 INFO L197 IcfgInterpreter]: Interpreting procedure nondet_uint64_t with input of size 94 for LOIs [2023-12-02 14:23:00,366 INFO L197 IcfgInterpreter]: Interpreting procedure aws_linked_list_node_next_is_valid with input of size 8 for LOIs [2023-12-02 14:23:00,392 INFO L180 IcfgInterpreter]: Interpretation finished [2023-12-02 14:23:15,721 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [1922237029] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 14:23:15,721 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2023-12-02 14:23:15,721 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [6, 16, 8] total 40 [2023-12-02 14:23:15,721 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1872980860] [2023-12-02 14:23:15,721 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 14:23:15,722 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2023-12-02 14:23:15,722 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 14:23:15,723 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2023-12-02 14:23:15,724 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=135, Invalid=1419, Unknown=6, NotChecked=0, Total=1560 [2023-12-02 14:23:15,724 INFO L87 Difference]: Start difference. First operand 119 states and 153 transitions. Second operand has 17 states, 14 states have (on average 1.5714285714285714) internal successors, (22), 11 states have internal predecessors, (22), 5 states have call successors, (9), 5 states have call predecessors, (9), 4 states have return successors, (8), 5 states have call predecessors, (8), 5 states have call successors, (8) [2023-12-02 14:23:32,553 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 14:23:32,553 INFO L93 Difference]: Finished difference Result 233 states and 303 transitions. [2023-12-02 14:23:32,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2023-12-02 14:23:32,554 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 14 states have (on average 1.5714285714285714) internal successors, (22), 11 states have internal predecessors, (22), 5 states have call successors, (9), 5 states have call predecessors, (9), 4 states have return successors, (8), 5 states have call predecessors, (8), 5 states have call successors, (8) Word has length 46 [2023-12-02 14:23:32,555 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 14:23:32,556 INFO L225 Difference]: With dead ends: 233 [2023-12-02 14:23:32,556 INFO L226 Difference]: Without dead ends: 139 [2023-12-02 14:23:32,557 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 151 GetRequests, 98 SyntacticMatches, 6 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 708 ImplicationChecksByTransitivity, 38.0s TimeCoverageRelationStatistics Valid=194, Invalid=2145, Unknown=13, NotChecked=0, Total=2352 [2023-12-02 14:23:32,558 INFO L413 NwaCegarLoop]: 33 mSDtfsCounter, 30 mSDsluCounter, 204 mSDsCounter, 0 mSdLazyCounter, 430 mSolverCounterSat, 9 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 237 SdHoareTripleChecker+Invalid, 441 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 430 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2023-12-02 14:23:32,558 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 237 Invalid, 441 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 430 Invalid, 2 Unknown, 0 Unchecked, 1.6s Time] [2023-12-02 14:23:32,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139 states. [2023-12-02 14:23:32,583 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 139 to 117. [2023-12-02 14:23:32,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 117 states, 76 states have (on average 1.1973684210526316) internal successors, (91), 80 states have internal predecessors, (91), 26 states have call successors, (26), 12 states have call predecessors, (26), 14 states have return successors, (28), 24 states have call predecessors, (28), 24 states have call successors, (28) [2023-12-02 14:23:32,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 117 states and 145 transitions. [2023-12-02 14:23:32,585 INFO L78 Accepts]: Start accepts. Automaton has 117 states and 145 transitions. Word has length 46 [2023-12-02 14:23:32,585 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 14:23:32,585 INFO L495 AbstractCegarLoop]: Abstraction has 117 states and 145 transitions. [2023-12-02 14:23:32,585 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 14 states have (on average 1.5714285714285714) internal successors, (22), 11 states have internal predecessors, (22), 5 states have call successors, (9), 5 states have call predecessors, (9), 4 states have return successors, (8), 5 states have call predecessors, (8), 5 states have call successors, (8) [2023-12-02 14:23:32,585 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 145 transitions. [2023-12-02 14:23:32,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2023-12-02 14:23:32,586 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 14:23:32,586 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 14:23:32,591 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c54d012-2dc3-49ba-a13d-c90e65ffec40/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2023-12-02 14:23:32,786 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c54d012-2dc3-49ba-a13d-c90e65ffec40/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2023-12-02 14:23:32,787 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 14:23:32,787 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 14:23:32,787 INFO L85 PathProgramCache]: Analyzing trace with hash 706444474, now seen corresponding path program 1 times [2023-12-02 14:23:32,787 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 14:23:32,787 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1883619042] [2023-12-02 14:23:32,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 14:23:32,788 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 14:23:32,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 14:23:33,004 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-12-02 14:23:33,004 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 14:23:33,005 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1883619042] [2023-12-02 14:23:33,005 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1883619042] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 14:23:33,005 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1281645452] [2023-12-02 14:23:33,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 14:23:33,005 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 14:23:33,005 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c54d012-2dc3-49ba-a13d-c90e65ffec40/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 14:23:33,006 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c54d012-2dc3-49ba-a13d-c90e65ffec40/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 14:23:33,009 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c54d012-2dc3-49ba-a13d-c90e65ffec40/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-12-02 14:23:33,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 14:23:33,240 INFO L262 TraceCheckSpWp]: Trace formula consists of 363 conjuncts, 57 conjunts are in the unsatisfiable core [2023-12-02 14:23:33,244 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 14:23:33,327 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 16 [2023-12-02 14:23:33,332 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 14:23:33,332 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2023-12-02 14:23:33,368 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 14:23:33,369 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 11 [2023-12-02 14:23:33,654 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 12 proven. 3 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-12-02 14:23:33,654 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 14:23:33,778 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1281645452] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 14:23:33,778 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1648034853] [2023-12-02 14:23:33,781 INFO L159 IcfgInterpreter]: Started Sifa with 35 locations of interest [2023-12-02 14:23:33,781 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 14:23:33,782 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-12-02 14:23:33,782 INFO L176 IcfgInterpreter]: Starting interpretation [2023-12-02 14:23:33,782 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-12-02 14:23:36,907 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 115 for LOIs [2023-12-02 14:23:37,143 INFO L197 IcfgInterpreter]: Interpreting procedure aws_linked_list_is_valid with input of size 106 for LOIs [2023-12-02 14:23:37,260 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 6 for LOIs [2023-12-02 14:23:37,261 INFO L197 IcfgInterpreter]: Interpreting procedure nondet_uint64_t with input of size 94 for LOIs [2023-12-02 14:23:37,274 INFO L197 IcfgInterpreter]: Interpreting procedure aws_linked_list_node_next_is_valid with input of size 1 for LOIs [2023-12-02 14:23:37,299 INFO L180 IcfgInterpreter]: Interpretation finished [2023-12-02 14:23:46,989 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '3877#(and (<= 0 |__VERIFIER_assert_#in~cond|) (exists ((|v_#memory_int_30| (Array Int (Array Int Int))) (|v_ULTIMATE.start_ensure_linked_list_is_allocated_~length~1#1_21| Int) (|v_ULTIMATE.start_ensure_linked_list_is_allocated_#in~list#1.offset_12| Int) (|v_#memory_real_27| (Array Int (Array Int Real))) (|v_ULTIMATE.start_ensure_linked_list_is_allocated_#in~max_length#1_12| Int) (|v_ULTIMATE.start_ensure_linked_list_is_allocated_#in~list#1.base_12| Int) (|v_ULTIMATE.start_aws_linked_list_begin_~list#1.offset_BEFORE_CALL_13| Int) (|v_ULTIMATE.start_ensure_linked_list_is_allocated_~node~0#1.offset_25| Int) (|v_ULTIMATE.start_ensure_linked_list_is_allocated_~list#1.offset_22| Int) (|v_#memory_$Pointer$.offset_94| (Array Int (Array Int Int))) (|v_#memory_real_88| (Array Int (Array Int Real))) (|v_ULTIMATE.start_aws_linked_list_begin_~list#1.base_BEFORE_CALL_12| Int) (|v_ULTIMATE.start_ensure_linked_list_is_allocated_~i~1#1_36| Int) (|v_#memory_$Pointer$.base_90| (Array Int (Array Int Int))) (|v_ULTIMATE.start_ensure_linked_list_is_allocated_~list#1.base_22| Int) (|v_ULTIMATE.start_ensure_linked_list_is_allocated_~max_length#1_15| Int) (|v_#memory_int_91| (Array Int (Array Int Int)))) (and (<= 1 |#StackHeapBarrier|) (= (store |v_#memory_real_88| (select (select |#memory_$Pointer$.base| |v_ULTIMATE.start_ensure_linked_list_is_allocated_~list#1.base_22|) (+ |v_ULTIMATE.start_ensure_linked_list_is_allocated_~list#1.offset_22| 24)) (store (select |v_#memory_real_88| (select (select |#memory_$Pointer$.base| |v_ULTIMATE.start_ensure_linked_list_is_allocated_~list#1.base_22|) (+ |v_ULTIMATE.start_ensure_linked_list_is_allocated_~list#1.offset_22| 24))) (select (select |#memory_$Pointer$.offset| |v_ULTIMATE.start_ensure_linked_list_is_allocated_~list#1.base_22|) (+ |v_ULTIMATE.start_ensure_linked_list_is_allocated_~list#1.offset_22| 24)) (select (select |v_#memory_real_27| (select (select |#memory_$Pointer$.base| |v_ULTIMATE.start_ensure_linked_list_is_allocated_~list#1.base_22|) (+ |v_ULTIMATE.start_ensure_linked_list_is_allocated_~list#1.offset_22| 24))) (select (select |#memory_$Pointer$.offset| |v_ULTIMATE.start_ensure_linked_list_is_allocated_~list#1.base_22|) (+ |v_ULTIMATE.start_ensure_linked_list_is_allocated_~list#1.offset_22| 24))))) |v_#memory_real_27|) (= |#memory_$Pointer$.offset| (store (store |v_#memory_$Pointer$.offset_94| (select (select |#memory_$Pointer$.base| |v_ULTIMATE.start_ensure_linked_list_is_allocated_~list#1.base_22|) (+ |v_ULTIMATE.start_ensure_linked_list_is_allocated_~list#1.offset_22| 24)) (store (select |v_#memory_$Pointer$.offset_94| (select (select |#memory_$Pointer$.base| |v_ULTIMATE.start_ensure_linked_list_is_allocated_~list#1.base_22|) (+ |v_ULTIMATE.start_ensure_linked_list_is_allocated_~list#1.offset_22| 24))) (select (select |#memory_$Pointer$.offset| |v_ULTIMATE.start_ensure_linked_list_is_allocated_~list#1.base_22|) (+ |v_ULTIMATE.start_ensure_linked_list_is_allocated_~list#1.offset_22| 24)) (+ 16 |v_ULTIMATE.start_ensure_linked_list_is_allocated_~list#1.offset_22|))) |v_ULTIMATE.start_ensure_linked_list_is_allocated_~list#1.base_22| (store (select (store |v_#memory_$Pointer$.offset_94| (select (select |#memory_$Pointer$.base| |v_ULTIMATE.start_ensure_linked_list_is_allocated_~list#1.base_22|) (+ |v_ULTIMATE.start_ensure_linked_list_is_allocated_~list#1.offset_22| 24)) (store (select |v_#memory_$Pointer$.offset_94| (select (select |#memory_$Pointer$.base| |v_ULTIMATE.start_ensure_linked_list_is_allocated_~list#1.base_22|) (+ |v_ULTIMATE.start_ensure_linked_list_is_allocated_~list#1.offset_22| 24))) (select (select |#memory_$Pointer$.offset| |v_ULTIMATE.start_ensure_linked_list_is_allocated_~list#1.base_22|) (+ |v_ULTIMATE.start_ensure_linked_list_is_allocated_~list#1.offset_22| 24)) (+ 16 |v_ULTIMATE.start_ensure_linked_list_is_allocated_~list#1.offset_22|))) |v_ULTIMATE.start_ensure_linked_list_is_allocated_~list#1.base_22|) (+ |v_ULTIMATE.start_ensure_linked_list_is_allocated_~list#1.offset_22| 24) (select (select |#memory_$Pointer$.offset| |v_ULTIMATE.start_ensure_linked_list_is_allocated_~list#1.base_22|) (+ |v_ULTIMATE.start_ensure_linked_list_is_allocated_~list#1.offset_22| 24))))) (= |#memory_real| (store |v_#memory_real_27| |v_ULTIMATE.start_ensure_linked_list_is_allocated_~list#1.base_22| (store (select |v_#memory_real_27| |v_ULTIMATE.start_ensure_linked_list_is_allocated_~list#1.base_22|) (+ |v_ULTIMATE.start_ensure_linked_list_is_allocated_~list#1.offset_22| 24) (select (select |#memory_real| |v_ULTIMATE.start_ensure_linked_list_is_allocated_~list#1.base_22|) (+ |v_ULTIMATE.start_ensure_linked_list_is_allocated_~list#1.offset_22| 24))))) (<= 2 |v_ULTIMATE.start_ensure_linked_list_is_allocated_~list#1.base_22|) (<= 2 |v_ULTIMATE.start_ensure_linked_list_is_allocated_#in~list#1.base_12|) (<= 2 |v_ULTIMATE.start_aws_linked_list_begin_~list#1.base_BEFORE_CALL_12|) (= (store (store |v_#memory_$Pointer$.base_90| (select (select |#memory_$Pointer$.base| |v_ULTIMATE.start_ensure_linked_list_is_allocated_~list#1.base_22|) (+ |v_ULTIMATE.start_ensure_linked_list_is_allocated_~list#1.offset_22| 24)) (store (select |v_#memory_$Pointer$.base_90| (select (select |#memory_$Pointer$.base| |v_ULTIMATE.start_ensure_linked_list_is_allocated_~list#1.base_22|) (+ |v_ULTIMATE.start_ensure_linked_list_is_allocated_~list#1.offset_22| 24))) (select (select |#memory_$Pointer$.offset| |v_ULTIMATE.start_ensure_linked_list_is_allocated_~list#1.base_22|) (+ |v_ULTIMATE.start_ensure_linked_list_is_allocated_~list#1.offset_22| 24)) |v_ULTIMATE.start_ensure_linked_list_is_allocated_~list#1.base_22|)) |v_ULTIMATE.start_ensure_linked_list_is_allocated_~list#1.base_22| (store (select (store |v_#memory_$Pointer$.base_90| (select (select |#memory_$Pointer$.base| |v_ULTIMATE.start_ensure_linked_list_is_allocated_~list#1.base_22|) (+ |v_ULTIMATE.start_ensure_linked_list_is_allocated_~list#1.offset_22| 24)) (store (select |v_#memory_$Pointer$.base_90| (select (select |#memory_$Pointer$.base| |v_ULTIMATE.start_ensure_linked_list_is_allocated_~list#1.base_22|) (+ |v_ULTIMATE.start_ensure_linked_list_is_allocated_~list#1.offset_22| 24))) (select (select |#memory_$Pointer$.offset| |v_ULTIMATE.start_ensure_linked_list_is_allocated_~list#1.base_22|) (+ |v_ULTIMATE.start_ensure_linked_list_is_allocated_~list#1.offset_22| 24)) |v_ULTIMATE.start_ensure_linked_list_is_allocated_~list#1.base_22|)) |v_ULTIMATE.start_ensure_linked_list_is_allocated_~list#1.base_22|) (+ |v_ULTIMATE.start_ensure_linked_list_is_allocated_~list#1.offset_22| 24) (select (select |#memory_$Pointer$.base| |v_ULTIMATE.start_ensure_linked_list_is_allocated_~list#1.base_22|) (+ |v_ULTIMATE.start_ensure_linked_list_is_allocated_~list#1.offset_22| 24)))) |#memory_$Pointer$.base|) (or (and (= |v_ULTIMATE.start_ensure_linked_list_is_allocated_#in~max_length#1_12| 20) (= (select (select |#memory_$Pointer$.offset| |v_ULTIMATE.start_ensure_linked_list_is_allocated_~list#1.base_22|) 24) 0) (= |~#s_can_fail_allocator_static~0.base| 4) (= |~#s_can_fail_allocator_static~0.offset| 0) (= |v_ULTIMATE.start_ensure_linked_list_is_allocated_#in~list#1.offset_12| 0) (= |v_ULTIMATE.start_ensure_linked_list_is_allocated_~max_length#1_15| 20) (= |v_ULTIMATE.start_aws_linked_list_begin_~list#1.offset_BEFORE_CALL_13| 0) (= |v_ULTIMATE.start_ensure_linked_list_is_allocated_~list#1.offset_22| 0) (= ~tl_last_error~0 0) (= |v_ULTIMATE.start_ensure_linked_list_is_allocated_~i~1#1_36| 0)) (and (= |v_ULTIMATE.start_ensure_linked_list_is_allocated_#in~max_length#1_12| 20) (= (select (select |#memory_$Pointer$.offset| |v_ULTIMATE.start_ensure_linked_list_is_allocated_~list#1.base_22|) 24) 0) (= |~#s_can_fail_allocator_static~0.base| 4) (= |~#s_can_fail_allocator_static~0.offset| 0) (= |v_ULTIMATE.start_ensure_linked_list_is_allocated_#in~list#1.offset_12| 0) (= |v_ULTIMATE.start_ensure_linked_list_is_allocated_~max_length#1_15| 20) (= |v_ULTIMATE.start_aws_linked_list_begin_~list#1.offset_BEFORE_CALL_13| 0) (= |v_ULTIMATE.start_ensure_linked_list_is_allocated_~node~0#1.offset_25| 0) (= |v_ULTIMATE.start_ensure_linked_list_is_allocated_~list#1.offset_22| 0) (= ~tl_last_error~0 0))) (= |v_#memory_int_30| (store |v_#memory_int_91| (select (select |#memory_$Pointer$.base| |v_ULTIMATE.start_ensure_linked_list_is_allocated_~list#1.base_22|) (+ |v_ULTIMATE.start_ensure_linked_list_is_allocated_~list#1.offset_22| 24)) (store (select |v_#memory_int_91| (select (select |#memory_$Pointer$.base| |v_ULTIMATE.start_ensure_linked_list_is_allocated_~list#1.base_22|) (+ |v_ULTIMATE.start_ensure_linked_list_is_allocated_~list#1.offset_22| 24))) (select (select |#memory_$Pointer$.offset| |v_ULTIMATE.start_ensure_linked_list_is_allocated_~list#1.base_22|) (+ |v_ULTIMATE.start_ensure_linked_list_is_allocated_~list#1.offset_22| 24)) (select (select |v_#memory_int_30| (select (select |#memory_$Pointer$.base| |v_ULTIMATE.start_ensure_linked_list_is_allocated_~list#1.base_22|) (+ |v_ULTIMATE.start_ensure_linked_list_is_allocated_~list#1.offset_22| 24))) (select (select |#memory_$Pointer$.offset| |v_ULTIMATE.start_ensure_linked_list_is_allocated_~list#1.base_22|) (+ |v_ULTIMATE.start_ensure_linked_list_is_allocated_~list#1.offset_22| 24)))))) (<= (mod |v_ULTIMATE.start_ensure_linked_list_is_allocated_~length~1#1_21| 18446744073709551616) (mod |v_ULTIMATE.start_ensure_linked_list_is_allocated_~i~1#1_36| 18446744073709551616)) (= |#memory_int| (store |v_#memory_int_30| |v_ULTIMATE.start_ensure_linked_list_is_allocated_~list#1.base_22| (store (select |v_#memory_int_30| |v_ULTIMATE.start_ensure_linked_list_is_allocated_~list#1.base_22|) (+ |v_ULTIMATE.start_ensure_linked_list_is_allocated_~list#1.offset_22| 24) (select (select |#memory_int| |v_ULTIMATE.start_ensure_linked_list_is_allocated_~list#1.base_22|) (+ |v_ULTIMATE.start_ensure_linked_list_is_allocated_~list#1.offset_22| 24))))) (<= 0 |v_ULTIMATE.start_ensure_linked_list_is_allocated_~i~1#1_36|))) (= (mod __VERIFIER_assert_~cond 256) 0) (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond) (<= |__VERIFIER_assert_#in~cond| 1))' at error location [2023-12-02 14:23:46,989 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2023-12-02 14:23:46,989 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-02 14:23:46,989 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 12] total 15 [2023-12-02 14:23:46,990 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [374878161] [2023-12-02 14:23:46,990 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-02 14:23:46,990 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-12-02 14:23:46,990 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 14:23:46,991 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-12-02 14:23:46,991 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=98, Invalid=1444, Unknown=18, NotChecked=0, Total=1560 [2023-12-02 14:23:46,991 INFO L87 Difference]: Start difference. First operand 117 states and 145 transitions. Second operand has 15 states, 12 states have (on average 4.083333333333333) internal successors, (49), 14 states have internal predecessors, (49), 6 states have call successors, (17), 3 states have call predecessors, (17), 6 states have return successors, (16), 5 states have call predecessors, (16), 6 states have call successors, (16) [2023-12-02 14:23:48,602 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 14:23:48,602 INFO L93 Difference]: Finished difference Result 185 states and 237 transitions. [2023-12-02 14:23:48,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-12-02 14:23:48,603 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 12 states have (on average 4.083333333333333) internal successors, (49), 14 states have internal predecessors, (49), 6 states have call successors, (17), 3 states have call predecessors, (17), 6 states have return successors, (16), 5 states have call predecessors, (16), 6 states have call successors, (16) Word has length 49 [2023-12-02 14:23:48,603 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 14:23:48,604 INFO L225 Difference]: With dead ends: 185 [2023-12-02 14:23:48,604 INFO L226 Difference]: Without dead ends: 140 [2023-12-02 14:23:48,606 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 137 GetRequests, 88 SyntacticMatches, 2 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 451 ImplicationChecksByTransitivity, 10.6s TimeCoverageRelationStatistics Valid=155, Invalid=2179, Unknown=18, NotChecked=0, Total=2352 [2023-12-02 14:23:48,606 INFO L413 NwaCegarLoop]: 52 mSDtfsCounter, 66 mSDsluCounter, 479 mSDsCounter, 0 mSdLazyCounter, 677 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 531 SdHoareTripleChecker+Invalid, 698 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 677 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-12-02 14:23:48,606 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [78 Valid, 531 Invalid, 698 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 677 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-12-02 14:23:48,607 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2023-12-02 14:23:48,634 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 128. [2023-12-02 14:23:48,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 128 states, 84 states have (on average 1.2142857142857142) internal successors, (102), 89 states have internal predecessors, (102), 28 states have call successors, (28), 12 states have call predecessors, (28), 15 states have return successors, (32), 26 states have call predecessors, (32), 26 states have call successors, (32) [2023-12-02 14:23:48,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 128 states and 162 transitions. [2023-12-02 14:23:48,635 INFO L78 Accepts]: Start accepts. Automaton has 128 states and 162 transitions. Word has length 49 [2023-12-02 14:23:48,635 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 14:23:48,635 INFO L495 AbstractCegarLoop]: Abstraction has 128 states and 162 transitions. [2023-12-02 14:23:48,636 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 12 states have (on average 4.083333333333333) internal successors, (49), 14 states have internal predecessors, (49), 6 states have call successors, (17), 3 states have call predecessors, (17), 6 states have return successors, (16), 5 states have call predecessors, (16), 6 states have call successors, (16) [2023-12-02 14:23:48,636 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 162 transitions. [2023-12-02 14:23:48,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2023-12-02 14:23:48,636 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 14:23:48,636 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 14:23:48,641 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c54d012-2dc3-49ba-a13d-c90e65ffec40/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2023-12-02 14:23:48,837 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c54d012-2dc3-49ba-a13d-c90e65ffec40/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2023-12-02 14:23:48,837 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 14:23:48,837 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 14:23:48,837 INFO L85 PathProgramCache]: Analyzing trace with hash 846673140, now seen corresponding path program 1 times [2023-12-02 14:23:48,838 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 14:23:48,838 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [411659] [2023-12-02 14:23:48,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 14:23:48,838 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 14:23:48,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 14:23:48,990 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 5 proven. 5 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-12-02 14:23:48,990 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 14:23:48,990 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [411659] [2023-12-02 14:23:48,990 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [411659] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 14:23:48,990 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1479024635] [2023-12-02 14:23:48,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 14:23:48,990 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 14:23:48,991 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c54d012-2dc3-49ba-a13d-c90e65ffec40/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 14:23:48,993 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c54d012-2dc3-49ba-a13d-c90e65ffec40/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 14:23:49,001 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c54d012-2dc3-49ba-a13d-c90e65ffec40/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-12-02 14:23:49,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 14:23:49,248 INFO L262 TraceCheckSpWp]: Trace formula consists of 342 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-02 14:23:49,251 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 14:23:49,320 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-12-02 14:23:49,320 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 14:23:49,321 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1479024635] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 14:23:49,321 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-02 14:23:49,321 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [7] total 12 [2023-12-02 14:23:49,321 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [450551766] [2023-12-02 14:23:49,321 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 14:23:49,322 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-02 14:23:49,322 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 14:23:49,323 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-02 14:23:49,323 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2023-12-02 14:23:49,323 INFO L87 Difference]: Start difference. First operand 128 states and 162 transitions. Second operand has 7 states, 6 states have (on average 5.5) internal successors, (33), 7 states have internal predecessors, (33), 4 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 3 states have call predecessors, (8), 4 states have call successors, (8) [2023-12-02 14:23:49,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 14:23:49,526 INFO L93 Difference]: Finished difference Result 210 states and 266 transitions. [2023-12-02 14:23:49,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-02 14:23:49,527 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 5.5) internal successors, (33), 7 states have internal predecessors, (33), 4 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 3 states have call predecessors, (8), 4 states have call successors, (8) Word has length 52 [2023-12-02 14:23:49,527 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 14:23:49,528 INFO L225 Difference]: With dead ends: 210 [2023-12-02 14:23:49,528 INFO L226 Difference]: Without dead ends: 125 [2023-12-02 14:23:49,529 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=193, Unknown=0, NotChecked=0, Total=240 [2023-12-02 14:23:49,530 INFO L413 NwaCegarLoop]: 38 mSDtfsCounter, 30 mSDsluCounter, 145 mSDsCounter, 0 mSdLazyCounter, 111 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 183 SdHoareTripleChecker+Invalid, 124 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 111 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 14:23:49,530 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 183 Invalid, 124 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 111 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 14:23:49,531 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125 states. [2023-12-02 14:23:49,565 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125 to 125. [2023-12-02 14:23:49,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 125 states, 82 states have (on average 1.1951219512195121) internal successors, (98), 86 states have internal predecessors, (98), 28 states have call successors, (28), 12 states have call predecessors, (28), 14 states have return successors, (30), 26 states have call predecessors, (30), 26 states have call successors, (30) [2023-12-02 14:23:49,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 156 transitions. [2023-12-02 14:23:49,567 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 156 transitions. Word has length 52 [2023-12-02 14:23:49,567 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 14:23:49,567 INFO L495 AbstractCegarLoop]: Abstraction has 125 states and 156 transitions. [2023-12-02 14:23:49,567 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 5.5) internal successors, (33), 7 states have internal predecessors, (33), 4 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 3 states have call predecessors, (8), 4 states have call successors, (8) [2023-12-02 14:23:49,568 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 156 transitions. [2023-12-02 14:23:49,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2023-12-02 14:23:49,568 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 14:23:49,568 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 14:23:49,574 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c54d012-2dc3-49ba-a13d-c90e65ffec40/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2023-12-02 14:23:49,769 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c54d012-2dc3-49ba-a13d-c90e65ffec40/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 14:23:49,769 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 14:23:49,769 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 14:23:49,770 INFO L85 PathProgramCache]: Analyzing trace with hash 1393554336, now seen corresponding path program 1 times [2023-12-02 14:23:49,770 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 14:23:49,770 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [69097587] [2023-12-02 14:23:49,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 14:23:49,770 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 14:23:49,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 14:23:49,993 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 5 proven. 2 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2023-12-02 14:23:49,993 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 14:23:49,993 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [69097587] [2023-12-02 14:23:49,993 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [69097587] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 14:23:49,994 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1047341966] [2023-12-02 14:23:49,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 14:23:49,994 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 14:23:49,994 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c54d012-2dc3-49ba-a13d-c90e65ffec40/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 14:23:49,995 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c54d012-2dc3-49ba-a13d-c90e65ffec40/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 14:23:50,001 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c54d012-2dc3-49ba-a13d-c90e65ffec40/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-12-02 14:23:50,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 14:23:50,278 INFO L262 TraceCheckSpWp]: Trace formula consists of 427 conjuncts, 80 conjunts are in the unsatisfiable core [2023-12-02 14:23:50,284 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 14:23:50,387 INFO L349 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2023-12-02 14:23:50,388 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 14 treesize of output 15 [2023-12-02 14:23:50,395 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-12-02 14:23:50,400 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 32 [2023-12-02 14:23:50,410 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 11 [2023-12-02 14:23:50,425 INFO L378 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 21 treesize of output 1 [2023-12-02 14:23:50,506 WARN L876 $PredicateComparison]: unable to prove that (or (exists ((v_DerPreprocessor_91 (Array Int Int)) (|v_ULTIMATE.start_ensure_linked_list_is_allocated_~curr~0#1.offset_42| Int) (v_DerPreprocessor_90 (Array Int Int))) (let ((.cse1 (select v_DerPreprocessor_91 |v_ULTIMATE.start_ensure_linked_list_is_allocated_~curr~0#1.offset_42|))) (let ((.cse2 (select |c_#memory_$Pointer$.base| .cse1))) (let ((.cse0 (select .cse2 24))) (and (not (= .cse0 0)) (<= 2 .cse1) (= .cse2 (store (select (store (store |c_#memory_$Pointer$.base| .cse1 v_DerPreprocessor_90) .cse0 v_DerPreprocessor_91) .cse1) 24 .cse0)) (not (= .cse1 .cse0))))))) (exists ((|v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base_BEFORE_CALL_80| Int)) (let ((.cse3 (select |c_#memory_$Pointer$.base| |v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base_BEFORE_CALL_80|))) (and (exists ((|v_ULTIMATE.start_ensure_linked_list_is_allocated_~curr~0#1.offset_42| Int)) (= (select .cse3 |v_ULTIMATE.start_ensure_linked_list_is_allocated_~curr~0#1.offset_42|) |v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base_BEFORE_CALL_80|)) (<= 2 |v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base_BEFORE_CALL_80|) (= (select .cse3 24) |v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base_BEFORE_CALL_80|))))) is different from true [2023-12-02 14:23:51,619 WARN L876 $PredicateComparison]: unable to prove that (let ((.cse1 (+ 16 |c_aws_linked_list_is_valid_#in~list#1.offset|)) (.cse3 (+ |c_aws_linked_list_is_valid_#in~list#1.offset| 8)) (.cse0 (select |c_#memory_$Pointer$.base| |c_aws_linked_list_is_valid_#in~list#1.base|)) (.cse2 (select |c_#memory_$Pointer$.offset| |c_aws_linked_list_is_valid_#in~list#1.base|))) (and (= |c_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~list#1.offset| |c_aws_linked_list_is_valid_#in~list#1.offset|) (= (select .cse0 .cse1) 0) (= (select .cse2 .cse3) 0) (= |c_aws_linked_list_is_valid_#in~list#1.base| |c_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.base|) (= (select .cse2 .cse1) 0) (or (exists ((v_DerPreprocessor_91 (Array Int Int)) (|v_ULTIMATE.start_ensure_linked_list_is_allocated_~curr~0#1.offset_42| Int) (v_DerPreprocessor_90 (Array Int Int))) (let ((.cse5 (select v_DerPreprocessor_91 |v_ULTIMATE.start_ensure_linked_list_is_allocated_~curr~0#1.offset_42|))) (let ((.cse6 (select |c_#memory_$Pointer$.base| .cse5))) (let ((.cse4 (select .cse6 24))) (and (not (= .cse4 0)) (<= 2 .cse5) (= .cse6 (store (select (store (store |c_#memory_$Pointer$.base| .cse5 v_DerPreprocessor_90) .cse4 v_DerPreprocessor_91) .cse5) 24 .cse4)) (not (= .cse5 .cse4))))))) (exists ((|v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base_BEFORE_CALL_80| Int)) (let ((.cse7 (select |c_#memory_$Pointer$.base| |v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base_BEFORE_CALL_80|))) (and (exists ((|v_ULTIMATE.start_ensure_linked_list_is_allocated_~curr~0#1.offset_42| Int)) (= (select .cse7 |v_ULTIMATE.start_ensure_linked_list_is_allocated_~curr~0#1.offset_42|) |v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base_BEFORE_CALL_80|)) (<= 2 |v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base_BEFORE_CALL_80|) (= (select .cse7 24) |v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base_BEFORE_CALL_80|))))) (= |c_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.offset| |c_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~list#1.offset|) (let ((.cse8 (+ |c_aws_linked_list_is_valid_#in~list#1.offset| 24))) (or (not (= (select .cse0 .cse8) 0)) (not (= (select .cse2 .cse8) 0)))) (= (select .cse0 .cse3) 0) (or (not (= |c_aws_linked_list_is_valid_#in~list#1.offset| 0)) (not (= |c_aws_linked_list_is_valid_#in~list#1.base| 0))) (or (not (= (select .cse0 |c_aws_linked_list_is_valid_#in~list#1.offset|) 0)) (not (= (select .cse2 |c_aws_linked_list_is_valid_#in~list#1.offset|) 0))))) is different from true [2023-12-02 14:23:58,359 WARN L876 $PredicateComparison]: unable to prove that (and (or (exists ((|v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.base_BEFORE_CALL_16| Int)) (and (exists ((|v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.offset_BEFORE_CALL_18| Int)) (let ((.cse1 (+ |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.offset_BEFORE_CALL_18| 16)) (.cse2 (select |c_#memory_$Pointer$.offset| |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.base_BEFORE_CALL_16|)) (.cse0 (select |c_#memory_$Pointer$.base| |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.base_BEFORE_CALL_16|)) (.cse3 (+ |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.offset_BEFORE_CALL_18| 8))) (and (= (select .cse0 .cse1) 0) (= (select .cse2 .cse1) 0) (not (= (select .cse0 |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.offset_BEFORE_CALL_18|) 0)) (= (select .cse2 .cse3) 0) (not (= 0 (select .cse2 (+ |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.offset_BEFORE_CALL_18| 24)))) (= (select .cse0 .cse3) 0)))) (not (= |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.base_BEFORE_CALL_16| 0)))) (exists ((|v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.base_BEFORE_CALL_16| Int)) (and (not (= |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.base_BEFORE_CALL_16| 0)) (exists ((|v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.offset_BEFORE_CALL_18| Int)) (let ((.cse5 (+ |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.offset_BEFORE_CALL_18| 16)) (.cse6 (select |c_#memory_$Pointer$.offset| |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.base_BEFORE_CALL_16|)) (.cse4 (select |c_#memory_$Pointer$.base| |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.base_BEFORE_CALL_16|)) (.cse7 (+ |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.offset_BEFORE_CALL_18| 8))) (and (= (select .cse4 .cse5) 0) (= (select .cse6 .cse5) 0) (not (= (select .cse6 |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.offset_BEFORE_CALL_18|) 0)) (= (select .cse6 .cse7) 0) (not (= 0 (select .cse6 (+ |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.offset_BEFORE_CALL_18| 24)))) (= (select .cse4 .cse7) 0)))))) (exists ((|v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.offset_BEFORE_CALL_18| Int)) (and (exists ((|v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.base_BEFORE_CALL_16| Int)) (let ((.cse9 (+ |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.offset_BEFORE_CALL_18| 16)) (.cse10 (select |c_#memory_$Pointer$.offset| |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.base_BEFORE_CALL_16|)) (.cse8 (select |c_#memory_$Pointer$.base| |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.base_BEFORE_CALL_16|)) (.cse11 (+ |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.offset_BEFORE_CALL_18| 8))) (and (= (select .cse8 .cse9) 0) (= (select .cse10 .cse9) 0) (not (= (select .cse8 |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.offset_BEFORE_CALL_18|) 0)) (not (= (select .cse8 (+ |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.offset_BEFORE_CALL_18| 24)) 0)) (= (select .cse10 .cse11) 0) (= (select .cse8 .cse11) 0)))) (not (= |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.offset_BEFORE_CALL_18| 0)))) (exists ((|v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.offset_BEFORE_CALL_18| Int)) (and (exists ((|v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.base_BEFORE_CALL_16| Int)) (let ((.cse13 (+ |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.offset_BEFORE_CALL_18| 16)) (.cse14 (select |c_#memory_$Pointer$.offset| |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.base_BEFORE_CALL_16|)) (.cse12 (select |c_#memory_$Pointer$.base| |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.base_BEFORE_CALL_16|)) (.cse15 (+ |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.offset_BEFORE_CALL_18| 8))) (and (= (select .cse12 .cse13) 0) (= (select .cse14 .cse13) 0) (not (= (select .cse14 |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.offset_BEFORE_CALL_18|) 0)) (= (select .cse14 .cse15) 0) (not (= 0 (select .cse14 (+ |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.offset_BEFORE_CALL_18| 24)))) (= (select .cse12 .cse15) 0)))) (not (= |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.offset_BEFORE_CALL_18| 0)))) (exists ((|v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.base_BEFORE_CALL_16| Int)) (and (not (= |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.base_BEFORE_CALL_16| 0)) (exists ((|v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.offset_BEFORE_CALL_18| Int)) (let ((.cse17 (+ |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.offset_BEFORE_CALL_18| 16)) (.cse18 (select |c_#memory_$Pointer$.offset| |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.base_BEFORE_CALL_16|)) (.cse16 (select |c_#memory_$Pointer$.base| |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.base_BEFORE_CALL_16|)) (.cse19 (+ |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.offset_BEFORE_CALL_18| 8))) (and (= (select .cse16 .cse17) 0) (= (select .cse18 .cse17) 0) (not (= (select .cse16 |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.offset_BEFORE_CALL_18|) 0)) (not (= (select .cse16 (+ |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.offset_BEFORE_CALL_18| 24)) 0)) (= (select .cse18 .cse19) 0) (= (select .cse16 .cse19) 0)))))) (exists ((|v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.base_BEFORE_CALL_16| Int)) (and (exists ((|v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.offset_BEFORE_CALL_18| Int)) (let ((.cse21 (+ |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.offset_BEFORE_CALL_18| 16)) (.cse22 (select |c_#memory_$Pointer$.offset| |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.base_BEFORE_CALL_16|)) (.cse20 (select |c_#memory_$Pointer$.base| |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.base_BEFORE_CALL_16|)) (.cse23 (+ |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.offset_BEFORE_CALL_18| 8))) (and (= (select .cse20 .cse21) 0) (= (select .cse22 .cse21) 0) (not (= (select .cse20 (+ |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.offset_BEFORE_CALL_18| 24)) 0)) (not (= (select .cse22 |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.offset_BEFORE_CALL_18|) 0)) (= (select .cse22 .cse23) 0) (= (select .cse20 .cse23) 0)))) (not (= |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.base_BEFORE_CALL_16| 0)))) (exists ((|v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.offset_BEFORE_CALL_18| Int)) (and (exists ((|v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.base_BEFORE_CALL_16| Int)) (let ((.cse25 (+ |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.offset_BEFORE_CALL_18| 16)) (.cse26 (select |c_#memory_$Pointer$.offset| |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.base_BEFORE_CALL_16|)) (.cse24 (select |c_#memory_$Pointer$.base| |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.base_BEFORE_CALL_16|)) (.cse27 (+ |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.offset_BEFORE_CALL_18| 8))) (and (= (select .cse24 .cse25) 0) (= (select .cse26 .cse25) 0) (not (= (select .cse24 (+ |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.offset_BEFORE_CALL_18| 24)) 0)) (not (= (select .cse26 |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.offset_BEFORE_CALL_18|) 0)) (= (select .cse26 .cse27) 0) (= (select .cse24 .cse27) 0)))) (not (= |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.offset_BEFORE_CALL_18| 0)))) (exists ((|v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.offset_BEFORE_CALL_18| Int)) (and (exists ((|v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.base_BEFORE_CALL_16| Int)) (let ((.cse29 (+ |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.offset_BEFORE_CALL_18| 16)) (.cse30 (select |c_#memory_$Pointer$.offset| |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.base_BEFORE_CALL_16|)) (.cse28 (select |c_#memory_$Pointer$.base| |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.base_BEFORE_CALL_16|)) (.cse31 (+ |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.offset_BEFORE_CALL_18| 8))) (and (= (select .cse28 .cse29) 0) (= (select .cse30 .cse29) 0) (not (= (select .cse28 |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.offset_BEFORE_CALL_18|) 0)) (= (select .cse30 .cse31) 0) (not (= 0 (select .cse30 (+ |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.offset_BEFORE_CALL_18| 24)))) (= (select .cse28 .cse31) 0)))) (not (= |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.offset_BEFORE_CALL_18| 0))))) (or (exists ((|v_aws_linked_list_is_valid_#in~list#1.offset_BEFORE_CALL_5| Int)) (and (exists ((|v_aws_linked_list_is_valid_#in~list#1.base_BEFORE_CALL_5| Int)) (let ((.cse33 (+ |v_aws_linked_list_is_valid_#in~list#1.offset_BEFORE_CALL_5| 8)) (.cse32 (select |c_#memory_$Pointer$.base| |v_aws_linked_list_is_valid_#in~list#1.base_BEFORE_CALL_5|)) (.cse35 (+ |v_aws_linked_list_is_valid_#in~list#1.offset_BEFORE_CALL_5| 16)) (.cse34 (select |c_#memory_$Pointer$.offset| |v_aws_linked_list_is_valid_#in~list#1.base_BEFORE_CALL_5|))) (and (= (select .cse32 .cse33) 0) (= (select .cse34 .cse33) 0) (= (select .cse32 .cse35) 0) (not (= (select .cse34 (+ |v_aws_linked_list_is_valid_#in~list#1.offset_BEFORE_CALL_5| 24)) 0)) (= (select .cse34 .cse35) 0) (not (= (select .cse34 |v_aws_linked_list_is_valid_#in~list#1.offset_BEFORE_CALL_5|) 0))))) (not (= |v_aws_linked_list_is_valid_#in~list#1.offset_BEFORE_CALL_5| 0)))) (exists ((|v_aws_linked_list_is_valid_#in~list#1.base_BEFORE_CALL_5| Int)) (and (exists ((|v_aws_linked_list_is_valid_#in~list#1.offset_BEFORE_CALL_5| Int)) (let ((.cse37 (+ |v_aws_linked_list_is_valid_#in~list#1.offset_BEFORE_CALL_5| 8)) (.cse39 (+ |v_aws_linked_list_is_valid_#in~list#1.offset_BEFORE_CALL_5| 16)) (.cse36 (select |c_#memory_$Pointer$.base| |v_aws_linked_list_is_valid_#in~list#1.base_BEFORE_CALL_5|)) (.cse38 (select |c_#memory_$Pointer$.offset| |v_aws_linked_list_is_valid_#in~list#1.base_BEFORE_CALL_5|))) (and (= (select .cse36 .cse37) 0) (= (select .cse38 .cse37) 0) (= (select .cse36 .cse39) 0) (= (select .cse38 .cse39) 0) (not (= (select .cse36 (+ |v_aws_linked_list_is_valid_#in~list#1.offset_BEFORE_CALL_5| 24)) 0)) (not (= (select .cse38 |v_aws_linked_list_is_valid_#in~list#1.offset_BEFORE_CALL_5|) 0))))) (not (= |v_aws_linked_list_is_valid_#in~list#1.base_BEFORE_CALL_5| 0)))) (exists ((|v_aws_linked_list_is_valid_#in~list#1.offset_BEFORE_CALL_5| Int)) (and (exists ((|v_aws_linked_list_is_valid_#in~list#1.base_BEFORE_CALL_5| Int)) (let ((.cse41 (+ |v_aws_linked_list_is_valid_#in~list#1.offset_BEFORE_CALL_5| 8)) (.cse40 (select |c_#memory_$Pointer$.base| |v_aws_linked_list_is_valid_#in~list#1.base_BEFORE_CALL_5|)) (.cse42 (select |c_#memory_$Pointer$.offset| |v_aws_linked_list_is_valid_#in~list#1.base_BEFORE_CALL_5|)) (.cse43 (+ |v_aws_linked_list_is_valid_#in~list#1.offset_BEFORE_CALL_5| 16))) (and (= (select .cse40 .cse41) 0) (not (= (select .cse40 |v_aws_linked_list_is_valid_#in~list#1.offset_BEFORE_CALL_5|) 0)) (= (select .cse42 .cse41) 0) (= (select .cse40 .cse43) 0) (not (= (select .cse42 (+ |v_aws_linked_list_is_valid_#in~list#1.offset_BEFORE_CALL_5| 24)) 0)) (= (select .cse42 .cse43) 0)))) (not (= |v_aws_linked_list_is_valid_#in~list#1.offset_BEFORE_CALL_5| 0)))) (exists ((|v_aws_linked_list_is_valid_#in~list#1.base_BEFORE_CALL_5| Int)) (and (not (= |v_aws_linked_list_is_valid_#in~list#1.base_BEFORE_CALL_5| 0)) (exists ((|v_aws_linked_list_is_valid_#in~list#1.offset_BEFORE_CALL_5| Int)) (let ((.cse45 (+ |v_aws_linked_list_is_valid_#in~list#1.offset_BEFORE_CALL_5| 8)) (.cse44 (select |c_#memory_$Pointer$.base| |v_aws_linked_list_is_valid_#in~list#1.base_BEFORE_CALL_5|)) (.cse47 (+ |v_aws_linked_list_is_valid_#in~list#1.offset_BEFORE_CALL_5| 16)) (.cse46 (select |c_#memory_$Pointer$.offset| |v_aws_linked_list_is_valid_#in~list#1.base_BEFORE_CALL_5|))) (and (= (select .cse44 .cse45) 0) (= (select .cse46 .cse45) 0) (= (select .cse44 .cse47) 0) (not (= (select .cse46 (+ |v_aws_linked_list_is_valid_#in~list#1.offset_BEFORE_CALL_5| 24)) 0)) (= (select .cse46 .cse47) 0) (not (= (select .cse46 |v_aws_linked_list_is_valid_#in~list#1.offset_BEFORE_CALL_5|) 0))))))) (exists ((|v_aws_linked_list_is_valid_#in~list#1.offset_BEFORE_CALL_5| Int)) (and (exists ((|v_aws_linked_list_is_valid_#in~list#1.base_BEFORE_CALL_5| Int)) (let ((.cse49 (+ |v_aws_linked_list_is_valid_#in~list#1.offset_BEFORE_CALL_5| 8)) (.cse51 (+ |v_aws_linked_list_is_valid_#in~list#1.offset_BEFORE_CALL_5| 16)) (.cse48 (select |c_#memory_$Pointer$.base| |v_aws_linked_list_is_valid_#in~list#1.base_BEFORE_CALL_5|)) (.cse50 (select |c_#memory_$Pointer$.offset| |v_aws_linked_list_is_valid_#in~list#1.base_BEFORE_CALL_5|))) (and (= (select .cse48 .cse49) 0) (= (select .cse50 .cse49) 0) (= (select .cse48 .cse51) 0) (= (select .cse50 .cse51) 0) (not (= (select .cse48 (+ |v_aws_linked_list_is_valid_#in~list#1.offset_BEFORE_CALL_5| 24)) 0)) (not (= (select .cse50 |v_aws_linked_list_is_valid_#in~list#1.offset_BEFORE_CALL_5|) 0))))) (not (= |v_aws_linked_list_is_valid_#in~list#1.offset_BEFORE_CALL_5| 0)))) (exists ((|v_aws_linked_list_is_valid_#in~list#1.base_BEFORE_CALL_5| Int)) (and (exists ((|v_aws_linked_list_is_valid_#in~list#1.offset_BEFORE_CALL_5| Int)) (let ((.cse53 (+ |v_aws_linked_list_is_valid_#in~list#1.offset_BEFORE_CALL_5| 8)) (.cse52 (select |c_#memory_$Pointer$.base| |v_aws_linked_list_is_valid_#in~list#1.base_BEFORE_CALL_5|)) (.cse54 (select |c_#memory_$Pointer$.offset| |v_aws_linked_list_is_valid_#in~list#1.base_BEFORE_CALL_5|)) (.cse55 (+ |v_aws_linked_list_is_valid_#in~list#1.offset_BEFORE_CALL_5| 16))) (and (= (select .cse52 .cse53) 0) (not (= (select .cse52 |v_aws_linked_list_is_valid_#in~list#1.offset_BEFORE_CALL_5|) 0)) (= (select .cse54 .cse53) 0) (= (select .cse52 .cse55) 0) (not (= (select .cse54 (+ |v_aws_linked_list_is_valid_#in~list#1.offset_BEFORE_CALL_5| 24)) 0)) (= (select .cse54 .cse55) 0)))) (not (= |v_aws_linked_list_is_valid_#in~list#1.base_BEFORE_CALL_5| 0)))) (exists ((|v_aws_linked_list_is_valid_#in~list#1.offset_BEFORE_CALL_5| Int)) (and (exists ((|v_aws_linked_list_is_valid_#in~list#1.base_BEFORE_CALL_5| Int)) (let ((.cse57 (+ |v_aws_linked_list_is_valid_#in~list#1.offset_BEFORE_CALL_5| 8)) (.cse58 (select |c_#memory_$Pointer$.offset| |v_aws_linked_list_is_valid_#in~list#1.base_BEFORE_CALL_5|)) (.cse59 (+ |v_aws_linked_list_is_valid_#in~list#1.offset_BEFORE_CALL_5| 16)) (.cse56 (select |c_#memory_$Pointer$.base| |v_aws_linked_list_is_valid_#in~list#1.base_BEFORE_CALL_5|))) (and (= (select .cse56 .cse57) 0) (not (= (select .cse56 |v_aws_linked_list_is_valid_#in~list#1.offset_BEFORE_CALL_5|) 0)) (= (select .cse58 .cse57) 0) (= (select .cse56 .cse59) 0) (= (select .cse58 .cse59) 0) (not (= (select .cse56 (+ |v_aws_linked_list_is_valid_#in~list#1.offset_BEFORE_CALL_5| 24)) 0))))) (not (= |v_aws_linked_list_is_valid_#in~list#1.offset_BEFORE_CALL_5| 0)))) (exists ((|v_aws_linked_list_is_valid_#in~list#1.base_BEFORE_CALL_5| Int)) (and (not (= |v_aws_linked_list_is_valid_#in~list#1.base_BEFORE_CALL_5| 0)) (exists ((|v_aws_linked_list_is_valid_#in~list#1.offset_BEFORE_CALL_5| Int)) (let ((.cse61 (+ |v_aws_linked_list_is_valid_#in~list#1.offset_BEFORE_CALL_5| 8)) (.cse62 (select |c_#memory_$Pointer$.offset| |v_aws_linked_list_is_valid_#in~list#1.base_BEFORE_CALL_5|)) (.cse63 (+ |v_aws_linked_list_is_valid_#in~list#1.offset_BEFORE_CALL_5| 16)) (.cse60 (select |c_#memory_$Pointer$.base| |v_aws_linked_list_is_valid_#in~list#1.base_BEFORE_CALL_5|))) (and (= (select .cse60 .cse61) 0) (not (= (select .cse60 |v_aws_linked_list_is_valid_#in~list#1.offset_BEFORE_CALL_5|) 0)) (= (select .cse62 .cse61) 0) (= (select .cse60 .cse63) 0) (= (select .cse62 .cse63) 0) (not (= (select .cse60 (+ |v_aws_linked_list_is_valid_#in~list#1.offset_BEFORE_CALL_5| 24)) 0)))))))) (or (exists ((v_DerPreprocessor_91 (Array Int Int)) (|v_ULTIMATE.start_ensure_linked_list_is_allocated_~curr~0#1.offset_42| Int) (v_DerPreprocessor_90 (Array Int Int))) (let ((.cse65 (select v_DerPreprocessor_91 |v_ULTIMATE.start_ensure_linked_list_is_allocated_~curr~0#1.offset_42|))) (let ((.cse66 (select |c_#memory_$Pointer$.base| .cse65))) (let ((.cse64 (select .cse66 24))) (and (not (= .cse64 0)) (<= 2 .cse65) (= .cse66 (store (select (store (store |c_#memory_$Pointer$.base| .cse65 v_DerPreprocessor_90) .cse64 v_DerPreprocessor_91) .cse65) 24 .cse64)) (not (= .cse65 .cse64))))))) (exists ((|v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base_BEFORE_CALL_80| Int)) (let ((.cse67 (select |c_#memory_$Pointer$.base| |v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base_BEFORE_CALL_80|))) (and (exists ((|v_ULTIMATE.start_ensure_linked_list_is_allocated_~curr~0#1.offset_42| Int)) (= (select .cse67 |v_ULTIMATE.start_ensure_linked_list_is_allocated_~curr~0#1.offset_42|) |v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base_BEFORE_CALL_80|)) (<= 2 |v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base_BEFORE_CALL_80|) (= (select .cse67 24) |v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base_BEFORE_CALL_80|)))))) is different from true [2023-12-02 14:24:00,181 WARN L876 $PredicateComparison]: unable to prove that (let ((.cse33 (+ 16 |c_aws_linked_list_is_valid_#in~list#1.offset|)) (.cse35 (+ |c_aws_linked_list_is_valid_#in~list#1.offset| 8)) (.cse32 (select |c_#memory_$Pointer$.base| |c_aws_linked_list_is_valid_#in~list#1.base|)) (.cse34 (select |c_#memory_$Pointer$.offset| |c_aws_linked_list_is_valid_#in~list#1.base|))) (and (= |c_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~list#1.offset| |c_aws_linked_list_is_valid_#in~list#1.offset|) (or (exists ((|v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.base_BEFORE_CALL_16| Int)) (and (exists ((|v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.offset_BEFORE_CALL_18| Int)) (let ((.cse1 (+ |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.offset_BEFORE_CALL_18| 16)) (.cse2 (select |c_#memory_$Pointer$.offset| |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.base_BEFORE_CALL_16|)) (.cse0 (select |c_#memory_$Pointer$.base| |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.base_BEFORE_CALL_16|)) (.cse3 (+ |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.offset_BEFORE_CALL_18| 8))) (and (= (select .cse0 .cse1) 0) (= (select .cse2 .cse1) 0) (not (= (select .cse0 |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.offset_BEFORE_CALL_18|) 0)) (= (select .cse2 .cse3) 0) (not (= 0 (select .cse2 (+ |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.offset_BEFORE_CALL_18| 24)))) (= (select .cse0 .cse3) 0)))) (not (= |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.base_BEFORE_CALL_16| 0)))) (exists ((|v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.base_BEFORE_CALL_16| Int)) (and (not (= |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.base_BEFORE_CALL_16| 0)) (exists ((|v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.offset_BEFORE_CALL_18| Int)) (let ((.cse5 (+ |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.offset_BEFORE_CALL_18| 16)) (.cse6 (select |c_#memory_$Pointer$.offset| |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.base_BEFORE_CALL_16|)) (.cse4 (select |c_#memory_$Pointer$.base| |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.base_BEFORE_CALL_16|)) (.cse7 (+ |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.offset_BEFORE_CALL_18| 8))) (and (= (select .cse4 .cse5) 0) (= (select .cse6 .cse5) 0) (not (= (select .cse6 |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.offset_BEFORE_CALL_18|) 0)) (= (select .cse6 .cse7) 0) (not (= 0 (select .cse6 (+ |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.offset_BEFORE_CALL_18| 24)))) (= (select .cse4 .cse7) 0)))))) (exists ((|v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.offset_BEFORE_CALL_18| Int)) (and (exists ((|v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.base_BEFORE_CALL_16| Int)) (let ((.cse9 (+ |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.offset_BEFORE_CALL_18| 16)) (.cse10 (select |c_#memory_$Pointer$.offset| |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.base_BEFORE_CALL_16|)) (.cse8 (select |c_#memory_$Pointer$.base| |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.base_BEFORE_CALL_16|)) (.cse11 (+ |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.offset_BEFORE_CALL_18| 8))) (and (= (select .cse8 .cse9) 0) (= (select .cse10 .cse9) 0) (not (= (select .cse8 |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.offset_BEFORE_CALL_18|) 0)) (not (= (select .cse8 (+ |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.offset_BEFORE_CALL_18| 24)) 0)) (= (select .cse10 .cse11) 0) (= (select .cse8 .cse11) 0)))) (not (= |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.offset_BEFORE_CALL_18| 0)))) (exists ((|v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.offset_BEFORE_CALL_18| Int)) (and (exists ((|v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.base_BEFORE_CALL_16| Int)) (let ((.cse13 (+ |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.offset_BEFORE_CALL_18| 16)) (.cse14 (select |c_#memory_$Pointer$.offset| |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.base_BEFORE_CALL_16|)) (.cse12 (select |c_#memory_$Pointer$.base| |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.base_BEFORE_CALL_16|)) (.cse15 (+ |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.offset_BEFORE_CALL_18| 8))) (and (= (select .cse12 .cse13) 0) (= (select .cse14 .cse13) 0) (not (= (select .cse14 |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.offset_BEFORE_CALL_18|) 0)) (= (select .cse14 .cse15) 0) (not (= 0 (select .cse14 (+ |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.offset_BEFORE_CALL_18| 24)))) (= (select .cse12 .cse15) 0)))) (not (= |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.offset_BEFORE_CALL_18| 0)))) (exists ((|v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.base_BEFORE_CALL_16| Int)) (and (not (= |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.base_BEFORE_CALL_16| 0)) (exists ((|v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.offset_BEFORE_CALL_18| Int)) (let ((.cse17 (+ |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.offset_BEFORE_CALL_18| 16)) (.cse18 (select |c_#memory_$Pointer$.offset| |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.base_BEFORE_CALL_16|)) (.cse16 (select |c_#memory_$Pointer$.base| |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.base_BEFORE_CALL_16|)) (.cse19 (+ |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.offset_BEFORE_CALL_18| 8))) (and (= (select .cse16 .cse17) 0) (= (select .cse18 .cse17) 0) (not (= (select .cse16 |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.offset_BEFORE_CALL_18|) 0)) (not (= (select .cse16 (+ |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.offset_BEFORE_CALL_18| 24)) 0)) (= (select .cse18 .cse19) 0) (= (select .cse16 .cse19) 0)))))) (exists ((|v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.base_BEFORE_CALL_16| Int)) (and (exists ((|v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.offset_BEFORE_CALL_18| Int)) (let ((.cse21 (+ |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.offset_BEFORE_CALL_18| 16)) (.cse22 (select |c_#memory_$Pointer$.offset| |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.base_BEFORE_CALL_16|)) (.cse20 (select |c_#memory_$Pointer$.base| |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.base_BEFORE_CALL_16|)) (.cse23 (+ |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.offset_BEFORE_CALL_18| 8))) (and (= (select .cse20 .cse21) 0) (= (select .cse22 .cse21) 0) (not (= (select .cse20 (+ |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.offset_BEFORE_CALL_18| 24)) 0)) (not (= (select .cse22 |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.offset_BEFORE_CALL_18|) 0)) (= (select .cse22 .cse23) 0) (= (select .cse20 .cse23) 0)))) (not (= |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.base_BEFORE_CALL_16| 0)))) (exists ((|v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.offset_BEFORE_CALL_18| Int)) (and (exists ((|v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.base_BEFORE_CALL_16| Int)) (let ((.cse25 (+ |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.offset_BEFORE_CALL_18| 16)) (.cse26 (select |c_#memory_$Pointer$.offset| |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.base_BEFORE_CALL_16|)) (.cse24 (select |c_#memory_$Pointer$.base| |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.base_BEFORE_CALL_16|)) (.cse27 (+ |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.offset_BEFORE_CALL_18| 8))) (and (= (select .cse24 .cse25) 0) (= (select .cse26 .cse25) 0) (not (= (select .cse24 (+ |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.offset_BEFORE_CALL_18| 24)) 0)) (not (= (select .cse26 |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.offset_BEFORE_CALL_18|) 0)) (= (select .cse26 .cse27) 0) (= (select .cse24 .cse27) 0)))) (not (= |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.offset_BEFORE_CALL_18| 0)))) (exists ((|v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.offset_BEFORE_CALL_18| Int)) (and (exists ((|v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.base_BEFORE_CALL_16| Int)) (let ((.cse29 (+ |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.offset_BEFORE_CALL_18| 16)) (.cse30 (select |c_#memory_$Pointer$.offset| |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.base_BEFORE_CALL_16|)) (.cse28 (select |c_#memory_$Pointer$.base| |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.base_BEFORE_CALL_16|)) (.cse31 (+ |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.offset_BEFORE_CALL_18| 8))) (and (= (select .cse28 .cse29) 0) (= (select .cse30 .cse29) 0) (not (= (select .cse28 |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.offset_BEFORE_CALL_18|) 0)) (= (select .cse30 .cse31) 0) (not (= 0 (select .cse30 (+ |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.offset_BEFORE_CALL_18| 24)))) (= (select .cse28 .cse31) 0)))) (not (= |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.offset_BEFORE_CALL_18| 0))))) (= (select .cse32 .cse33) 0) (= (select .cse34 .cse35) 0) (= (select .cse34 .cse33) 0) (or (exists ((v_DerPreprocessor_91 (Array Int Int)) (|v_ULTIMATE.start_ensure_linked_list_is_allocated_~curr~0#1.offset_42| Int) (v_DerPreprocessor_90 (Array Int Int))) (let ((.cse37 (select v_DerPreprocessor_91 |v_ULTIMATE.start_ensure_linked_list_is_allocated_~curr~0#1.offset_42|))) (let ((.cse38 (select |c_#memory_$Pointer$.base| .cse37))) (let ((.cse36 (select .cse38 24))) (and (not (= .cse36 0)) (<= 2 .cse37) (= .cse38 (store (select (store (store |c_#memory_$Pointer$.base| .cse37 v_DerPreprocessor_90) .cse36 v_DerPreprocessor_91) .cse37) 24 .cse36)) (not (= .cse37 .cse36))))))) (exists ((|v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base_BEFORE_CALL_80| Int)) (let ((.cse39 (select |c_#memory_$Pointer$.base| |v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base_BEFORE_CALL_80|))) (and (exists ((|v_ULTIMATE.start_ensure_linked_list_is_allocated_~curr~0#1.offset_42| Int)) (= (select .cse39 |v_ULTIMATE.start_ensure_linked_list_is_allocated_~curr~0#1.offset_42|) |v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base_BEFORE_CALL_80|)) (<= 2 |v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base_BEFORE_CALL_80|) (= (select .cse39 24) |v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base_BEFORE_CALL_80|))))) (let ((.cse40 (+ |c_aws_linked_list_is_valid_#in~list#1.offset| 24))) (or (not (= (select .cse32 .cse40) 0)) (not (= (select .cse34 .cse40) 0)))) (= (select .cse32 .cse35) 0) (or (not (= |c_aws_linked_list_is_valid_#in~list#1.offset| 0)) (not (= |c_aws_linked_list_is_valid_#in~list#1.base| 0))) (or (not (= (select .cse32 |c_aws_linked_list_is_valid_#in~list#1.offset|) 0)) (not (= (select .cse34 |c_aws_linked_list_is_valid_#in~list#1.offset|) 0))) (= |c_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.offset| (select (select |c_#memory_$Pointer$.offset| (select .cse32 |c_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~list#1.offset|)) (select .cse34 |c_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~list#1.offset|))))) is different from true [2023-12-02 14:24:04,540 WARN L876 $PredicateComparison]: unable to prove that (and (or (exists ((|v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.base_BEFORE_CALL_16| Int)) (and (exists ((|v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.offset_BEFORE_CALL_18| Int)) (let ((.cse1 (+ |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.offset_BEFORE_CALL_18| 16)) (.cse2 (select |c_#memory_$Pointer$.offset| |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.base_BEFORE_CALL_16|)) (.cse0 (select |c_#memory_$Pointer$.base| |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.base_BEFORE_CALL_16|)) (.cse3 (+ |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.offset_BEFORE_CALL_18| 8))) (and (= (select .cse0 .cse1) 0) (= (select .cse2 .cse1) 0) (not (= (select .cse0 |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.offset_BEFORE_CALL_18|) 0)) (= (select .cse2 .cse3) 0) (not (= 0 (select .cse2 (+ |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.offset_BEFORE_CALL_18| 24)))) (= (select .cse0 .cse3) 0)))) (not (= |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.base_BEFORE_CALL_16| 0)))) (exists ((|v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.base_BEFORE_CALL_16| Int)) (and (not (= |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.base_BEFORE_CALL_16| 0)) (exists ((|v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.offset_BEFORE_CALL_18| Int)) (let ((.cse5 (+ |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.offset_BEFORE_CALL_18| 16)) (.cse6 (select |c_#memory_$Pointer$.offset| |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.base_BEFORE_CALL_16|)) (.cse4 (select |c_#memory_$Pointer$.base| |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.base_BEFORE_CALL_16|)) (.cse7 (+ |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.offset_BEFORE_CALL_18| 8))) (and (= (select .cse4 .cse5) 0) (= (select .cse6 .cse5) 0) (not (= (select .cse6 |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.offset_BEFORE_CALL_18|) 0)) (= (select .cse6 .cse7) 0) (not (= 0 (select .cse6 (+ |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.offset_BEFORE_CALL_18| 24)))) (= (select .cse4 .cse7) 0)))))) (exists ((|v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.offset_BEFORE_CALL_18| Int)) (and (exists ((|v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.base_BEFORE_CALL_16| Int)) (let ((.cse9 (+ |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.offset_BEFORE_CALL_18| 16)) (.cse10 (select |c_#memory_$Pointer$.offset| |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.base_BEFORE_CALL_16|)) (.cse8 (select |c_#memory_$Pointer$.base| |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.base_BEFORE_CALL_16|)) (.cse11 (+ |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.offset_BEFORE_CALL_18| 8))) (and (= (select .cse8 .cse9) 0) (= (select .cse10 .cse9) 0) (not (= (select .cse8 |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.offset_BEFORE_CALL_18|) 0)) (not (= (select .cse8 (+ |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.offset_BEFORE_CALL_18| 24)) 0)) (= (select .cse10 .cse11) 0) (= (select .cse8 .cse11) 0)))) (not (= |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.offset_BEFORE_CALL_18| 0)))) (exists ((|v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.offset_BEFORE_CALL_18| Int)) (and (exists ((|v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.base_BEFORE_CALL_16| Int)) (let ((.cse13 (+ |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.offset_BEFORE_CALL_18| 16)) (.cse14 (select |c_#memory_$Pointer$.offset| |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.base_BEFORE_CALL_16|)) (.cse12 (select |c_#memory_$Pointer$.base| |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.base_BEFORE_CALL_16|)) (.cse15 (+ |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.offset_BEFORE_CALL_18| 8))) (and (= (select .cse12 .cse13) 0) (= (select .cse14 .cse13) 0) (not (= (select .cse14 |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.offset_BEFORE_CALL_18|) 0)) (= (select .cse14 .cse15) 0) (not (= 0 (select .cse14 (+ |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.offset_BEFORE_CALL_18| 24)))) (= (select .cse12 .cse15) 0)))) (not (= |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.offset_BEFORE_CALL_18| 0)))) (exists ((|v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.base_BEFORE_CALL_16| Int)) (and (not (= |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.base_BEFORE_CALL_16| 0)) (exists ((|v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.offset_BEFORE_CALL_18| Int)) (let ((.cse17 (+ |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.offset_BEFORE_CALL_18| 16)) (.cse18 (select |c_#memory_$Pointer$.offset| |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.base_BEFORE_CALL_16|)) (.cse16 (select |c_#memory_$Pointer$.base| |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.base_BEFORE_CALL_16|)) (.cse19 (+ |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.offset_BEFORE_CALL_18| 8))) (and (= (select .cse16 .cse17) 0) (= (select .cse18 .cse17) 0) (not (= (select .cse16 |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.offset_BEFORE_CALL_18|) 0)) (not (= (select .cse16 (+ |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.offset_BEFORE_CALL_18| 24)) 0)) (= (select .cse18 .cse19) 0) (= (select .cse16 .cse19) 0)))))) (exists ((|v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.base_BEFORE_CALL_16| Int)) (and (exists ((|v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.offset_BEFORE_CALL_18| Int)) (let ((.cse21 (+ |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.offset_BEFORE_CALL_18| 16)) (.cse22 (select |c_#memory_$Pointer$.offset| |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.base_BEFORE_CALL_16|)) (.cse20 (select |c_#memory_$Pointer$.base| |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.base_BEFORE_CALL_16|)) (.cse23 (+ |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.offset_BEFORE_CALL_18| 8))) (and (= (select .cse20 .cse21) 0) (= (select .cse22 .cse21) 0) (not (= (select .cse20 (+ |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.offset_BEFORE_CALL_18| 24)) 0)) (not (= (select .cse22 |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.offset_BEFORE_CALL_18|) 0)) (= (select .cse22 .cse23) 0) (= (select .cse20 .cse23) 0)))) (not (= |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.base_BEFORE_CALL_16| 0)))) (exists ((|v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.offset_BEFORE_CALL_18| Int)) (and (exists ((|v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.base_BEFORE_CALL_16| Int)) (let ((.cse25 (+ |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.offset_BEFORE_CALL_18| 16)) (.cse26 (select |c_#memory_$Pointer$.offset| |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.base_BEFORE_CALL_16|)) (.cse24 (select |c_#memory_$Pointer$.base| |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.base_BEFORE_CALL_16|)) (.cse27 (+ |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.offset_BEFORE_CALL_18| 8))) (and (= (select .cse24 .cse25) 0) (= (select .cse26 .cse25) 0) (not (= (select .cse24 (+ |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.offset_BEFORE_CALL_18| 24)) 0)) (not (= (select .cse26 |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.offset_BEFORE_CALL_18|) 0)) (= (select .cse26 .cse27) 0) (= (select .cse24 .cse27) 0)))) (not (= |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.offset_BEFORE_CALL_18| 0)))) (exists ((|v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.offset_BEFORE_CALL_18| Int)) (and (exists ((|v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.base_BEFORE_CALL_16| Int)) (let ((.cse29 (+ |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.offset_BEFORE_CALL_18| 16)) (.cse30 (select |c_#memory_$Pointer$.offset| |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.base_BEFORE_CALL_16|)) (.cse28 (select |c_#memory_$Pointer$.base| |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.base_BEFORE_CALL_16|)) (.cse31 (+ |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.offset_BEFORE_CALL_18| 8))) (and (= (select .cse28 .cse29) 0) (= (select .cse30 .cse29) 0) (not (= (select .cse28 |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.offset_BEFORE_CALL_18|) 0)) (= (select .cse30 .cse31) 0) (not (= 0 (select .cse30 (+ |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.offset_BEFORE_CALL_18| 24)))) (= (select .cse28 .cse31) 0)))) (not (= |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.offset_BEFORE_CALL_18| 0))))) (or (exists ((|v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base_BEFORE_CALL_81| Int)) (let ((.cse34 (select |c_#memory_$Pointer$.offset| |v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base_BEFORE_CALL_81|))) (let ((.cse33 (select .cse34 0)) (.cse32 (select |c_#memory_$Pointer$.base| |v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base_BEFORE_CALL_81|))) (and (= (select .cse32 8) 0) (not (= .cse33 0)) (= (select .cse34 16) 0) (= 16 (select (select |c_#memory_$Pointer$.offset| (select .cse32 0)) .cse33)) (= (select .cse32 24) |v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base_BEFORE_CALL_81|) (<= 2 |v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base_BEFORE_CALL_81|) (exists ((|v_ULTIMATE.start_ensure_linked_list_is_allocated_~curr~0#1.offset_42| Int)) (= |v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base_BEFORE_CALL_81| (select .cse32 |v_ULTIMATE.start_ensure_linked_list_is_allocated_~curr~0#1.offset_42|))) (= (select .cse32 16) 0) (= (select .cse34 8) 0))))) (exists ((v_DerPreprocessor_91 (Array Int Int)) (|v_ULTIMATE.start_ensure_linked_list_is_allocated_~curr~0#1.offset_42| Int) (v_DerPreprocessor_90 (Array Int Int))) (let ((.cse39 (select v_DerPreprocessor_91 |v_ULTIMATE.start_ensure_linked_list_is_allocated_~curr~0#1.offset_42|))) (let ((.cse38 (select |c_#memory_$Pointer$.base| .cse39))) (let ((.cse35 (select .cse38 0)) (.cse37 (select |c_#memory_$Pointer$.offset| .cse39)) (.cse36 (select .cse38 24))) (and (not (= 0 .cse35)) (not (= .cse36 0)) (= (select .cse37 16) 0) (= 0 (select .cse38 16)) (<= 2 .cse39) (= (select .cse37 8) 0) (= .cse38 (store (select (store (store |c_#memory_$Pointer$.base| .cse39 v_DerPreprocessor_90) .cse36 v_DerPreprocessor_91) .cse39) 24 .cse36)) (= 16 (select (select |c_#memory_$Pointer$.offset| .cse35) (select .cse37 0))) (not (= .cse39 .cse36)) (= (select .cse38 8) 0)))))) (exists ((|v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base_BEFORE_CALL_81| Int)) (let ((.cse41 (select |c_#memory_$Pointer$.base| |v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base_BEFORE_CALL_81|))) (let ((.cse40 (select .cse41 0)) (.cse42 (select |c_#memory_$Pointer$.offset| |v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base_BEFORE_CALL_81|))) (and (not (= .cse40 0)) (= (select .cse41 8) 0) (= (select .cse42 16) 0) (= 16 (select (select |c_#memory_$Pointer$.offset| .cse40) (select .cse42 0))) (= (select .cse41 24) |v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base_BEFORE_CALL_81|) (<= 2 |v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base_BEFORE_CALL_81|) (exists ((|v_ULTIMATE.start_ensure_linked_list_is_allocated_~curr~0#1.offset_42| Int)) (= |v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base_BEFORE_CALL_81| (select .cse41 |v_ULTIMATE.start_ensure_linked_list_is_allocated_~curr~0#1.offset_42|))) (= (select .cse41 16) 0) (= (select .cse42 8) 0))))) (exists ((v_DerPreprocessor_91 (Array Int Int)) (|v_ULTIMATE.start_ensure_linked_list_is_allocated_~curr~0#1.offset_42| Int) (v_DerPreprocessor_90 (Array Int Int))) (let ((.cse46 (select v_DerPreprocessor_91 |v_ULTIMATE.start_ensure_linked_list_is_allocated_~curr~0#1.offset_42|))) (let ((.cse44 (select |c_#memory_$Pointer$.offset| .cse46)) (.cse45 (select |c_#memory_$Pointer$.base| .cse46))) (let ((.cse43 (select .cse45 24)) (.cse47 (select .cse44 0))) (and (not (= .cse43 0)) (= (select .cse44 16) 0) (= 0 (select .cse45 16)) (<= 2 .cse46) (= (select .cse44 8) 0) (= .cse45 (store (select (store (store |c_#memory_$Pointer$.base| .cse46 v_DerPreprocessor_90) .cse43 v_DerPreprocessor_91) .cse46) 24 .cse43)) (= 16 (select (select |c_#memory_$Pointer$.offset| (select .cse45 0)) .cse47)) (not (= .cse46 .cse43)) (= (select .cse45 8) 0) (not (= .cse47 0)))))))) (or (exists ((v_DerPreprocessor_91 (Array Int Int)) (|v_ULTIMATE.start_ensure_linked_list_is_allocated_~curr~0#1.offset_42| Int) (v_DerPreprocessor_90 (Array Int Int))) (let ((.cse49 (select v_DerPreprocessor_91 |v_ULTIMATE.start_ensure_linked_list_is_allocated_~curr~0#1.offset_42|))) (let ((.cse50 (select |c_#memory_$Pointer$.base| .cse49))) (let ((.cse48 (select .cse50 24))) (and (not (= .cse48 0)) (<= 2 .cse49) (= .cse50 (store (select (store (store |c_#memory_$Pointer$.base| .cse49 v_DerPreprocessor_90) .cse48 v_DerPreprocessor_91) .cse49) 24 .cse48)) (not (= .cse49 .cse48))))))) (exists ((|v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base_BEFORE_CALL_80| Int)) (let ((.cse51 (select |c_#memory_$Pointer$.base| |v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base_BEFORE_CALL_80|))) (and (exists ((|v_ULTIMATE.start_ensure_linked_list_is_allocated_~curr~0#1.offset_42| Int)) (= (select .cse51 |v_ULTIMATE.start_ensure_linked_list_is_allocated_~curr~0#1.offset_42|) |v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base_BEFORE_CALL_80|)) (<= 2 |v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base_BEFORE_CALL_80|) (= (select .cse51 24) |v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base_BEFORE_CALL_80|)))))) is different from true [2023-12-02 14:24:07,837 WARN L876 $PredicateComparison]: unable to prove that (let ((.cse35 (exists ((v_DerPreprocessor_91 (Array Int Int)) (|v_ULTIMATE.start_ensure_linked_list_is_allocated_~curr~0#1.offset_42| Int) (v_DerPreprocessor_90 (Array Int Int))) (let ((.cse59 (select v_DerPreprocessor_91 |v_ULTIMATE.start_ensure_linked_list_is_allocated_~curr~0#1.offset_42|))) (let ((.cse58 (select |c_#memory_$Pointer$.base| .cse59))) (let ((.cse55 (select .cse58 0)) (.cse57 (select |c_#memory_$Pointer$.offset| .cse59)) (.cse56 (select .cse58 24))) (and (not (= 0 .cse55)) (not (= .cse56 0)) (= (select .cse57 16) 0) (= 0 (select .cse58 16)) (<= 2 .cse59) (= (select .cse57 8) 0) (= .cse58 (store (select (store (store |c_#memory_$Pointer$.base| .cse59 v_DerPreprocessor_90) .cse56 v_DerPreprocessor_91) .cse59) 24 .cse56)) (= 16 (select (select |c_#memory_$Pointer$.offset| .cse55) (select .cse57 0))) (not (= .cse59 .cse56)) (= (select .cse58 8) 0))))))) (.cse39 (exists ((v_DerPreprocessor_91 (Array Int Int)) (|v_ULTIMATE.start_ensure_linked_list_is_allocated_~curr~0#1.offset_42| Int) (v_DerPreprocessor_90 (Array Int Int))) (let ((.cse53 (select v_DerPreprocessor_91 |v_ULTIMATE.start_ensure_linked_list_is_allocated_~curr~0#1.offset_42|))) (let ((.cse51 (select |c_#memory_$Pointer$.offset| .cse53)) (.cse52 (select |c_#memory_$Pointer$.base| .cse53))) (let ((.cse50 (select .cse52 24)) (.cse54 (select .cse51 0))) (and (not (= .cse50 0)) (= (select .cse51 16) 0) (= 0 (select .cse52 16)) (<= 2 .cse53) (= (select .cse51 8) 0) (= .cse52 (store (select (store (store |c_#memory_$Pointer$.base| .cse53 v_DerPreprocessor_90) .cse50 v_DerPreprocessor_91) .cse53) 24 .cse50)) (= 16 (select (select |c_#memory_$Pointer$.offset| (select .cse52 0)) .cse54)) (not (= .cse53 .cse50)) (= (select .cse52 8) 0) (not (= .cse54 0))))))))) (and (or (exists ((|v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.base_BEFORE_CALL_16| Int)) (and (exists ((|v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.offset_BEFORE_CALL_18| Int)) (let ((.cse1 (+ |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.offset_BEFORE_CALL_18| 16)) (.cse2 (select |c_#memory_$Pointer$.offset| |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.base_BEFORE_CALL_16|)) (.cse0 (select |c_#memory_$Pointer$.base| |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.base_BEFORE_CALL_16|)) (.cse3 (+ |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.offset_BEFORE_CALL_18| 8))) (and (= (select .cse0 .cse1) 0) (= (select .cse2 .cse1) 0) (not (= (select .cse0 |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.offset_BEFORE_CALL_18|) 0)) (= (select .cse2 .cse3) 0) (not (= 0 (select .cse2 (+ |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.offset_BEFORE_CALL_18| 24)))) (= (select .cse0 .cse3) 0)))) (not (= |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.base_BEFORE_CALL_16| 0)))) (exists ((|v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.base_BEFORE_CALL_16| Int)) (and (not (= |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.base_BEFORE_CALL_16| 0)) (exists ((|v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.offset_BEFORE_CALL_18| Int)) (let ((.cse5 (+ |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.offset_BEFORE_CALL_18| 16)) (.cse6 (select |c_#memory_$Pointer$.offset| |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.base_BEFORE_CALL_16|)) (.cse4 (select |c_#memory_$Pointer$.base| |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.base_BEFORE_CALL_16|)) (.cse7 (+ |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.offset_BEFORE_CALL_18| 8))) (and (= (select .cse4 .cse5) 0) (= (select .cse6 .cse5) 0) (not (= (select .cse6 |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.offset_BEFORE_CALL_18|) 0)) (= (select .cse6 .cse7) 0) (not (= 0 (select .cse6 (+ |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.offset_BEFORE_CALL_18| 24)))) (= (select .cse4 .cse7) 0)))))) (exists ((|v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.offset_BEFORE_CALL_18| Int)) (and (exists ((|v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.base_BEFORE_CALL_16| Int)) (let ((.cse9 (+ |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.offset_BEFORE_CALL_18| 16)) (.cse10 (select |c_#memory_$Pointer$.offset| |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.base_BEFORE_CALL_16|)) (.cse8 (select |c_#memory_$Pointer$.base| |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.base_BEFORE_CALL_16|)) (.cse11 (+ |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.offset_BEFORE_CALL_18| 8))) (and (= (select .cse8 .cse9) 0) (= (select .cse10 .cse9) 0) (not (= (select .cse8 |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.offset_BEFORE_CALL_18|) 0)) (not (= (select .cse8 (+ |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.offset_BEFORE_CALL_18| 24)) 0)) (= (select .cse10 .cse11) 0) (= (select .cse8 .cse11) 0)))) (not (= |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.offset_BEFORE_CALL_18| 0)))) (exists ((|v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.offset_BEFORE_CALL_18| Int)) (and (exists ((|v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.base_BEFORE_CALL_16| Int)) (let ((.cse13 (+ |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.offset_BEFORE_CALL_18| 16)) (.cse14 (select |c_#memory_$Pointer$.offset| |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.base_BEFORE_CALL_16|)) (.cse12 (select |c_#memory_$Pointer$.base| |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.base_BEFORE_CALL_16|)) (.cse15 (+ |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.offset_BEFORE_CALL_18| 8))) (and (= (select .cse12 .cse13) 0) (= (select .cse14 .cse13) 0) (not (= (select .cse14 |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.offset_BEFORE_CALL_18|) 0)) (= (select .cse14 .cse15) 0) (not (= 0 (select .cse14 (+ |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.offset_BEFORE_CALL_18| 24)))) (= (select .cse12 .cse15) 0)))) (not (= |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.offset_BEFORE_CALL_18| 0)))) (exists ((|v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.base_BEFORE_CALL_16| Int)) (and (not (= |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.base_BEFORE_CALL_16| 0)) (exists ((|v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.offset_BEFORE_CALL_18| Int)) (let ((.cse17 (+ |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.offset_BEFORE_CALL_18| 16)) (.cse18 (select |c_#memory_$Pointer$.offset| |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.base_BEFORE_CALL_16|)) (.cse16 (select |c_#memory_$Pointer$.base| |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.base_BEFORE_CALL_16|)) (.cse19 (+ |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.offset_BEFORE_CALL_18| 8))) (and (= (select .cse16 .cse17) 0) (= (select .cse18 .cse17) 0) (not (= (select .cse16 |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.offset_BEFORE_CALL_18|) 0)) (not (= (select .cse16 (+ |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.offset_BEFORE_CALL_18| 24)) 0)) (= (select .cse18 .cse19) 0) (= (select .cse16 .cse19) 0)))))) (exists ((|v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.base_BEFORE_CALL_16| Int)) (and (exists ((|v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.offset_BEFORE_CALL_18| Int)) (let ((.cse21 (+ |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.offset_BEFORE_CALL_18| 16)) (.cse22 (select |c_#memory_$Pointer$.offset| |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.base_BEFORE_CALL_16|)) (.cse20 (select |c_#memory_$Pointer$.base| |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.base_BEFORE_CALL_16|)) (.cse23 (+ |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.offset_BEFORE_CALL_18| 8))) (and (= (select .cse20 .cse21) 0) (= (select .cse22 .cse21) 0) (not (= (select .cse20 (+ |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.offset_BEFORE_CALL_18| 24)) 0)) (not (= (select .cse22 |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.offset_BEFORE_CALL_18|) 0)) (= (select .cse22 .cse23) 0) (= (select .cse20 .cse23) 0)))) (not (= |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.base_BEFORE_CALL_16| 0)))) (exists ((|v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.offset_BEFORE_CALL_18| Int)) (and (exists ((|v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.base_BEFORE_CALL_16| Int)) (let ((.cse25 (+ |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.offset_BEFORE_CALL_18| 16)) (.cse26 (select |c_#memory_$Pointer$.offset| |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.base_BEFORE_CALL_16|)) (.cse24 (select |c_#memory_$Pointer$.base| |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.base_BEFORE_CALL_16|)) (.cse27 (+ |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.offset_BEFORE_CALL_18| 8))) (and (= (select .cse24 .cse25) 0) (= (select .cse26 .cse25) 0) (not (= (select .cse24 (+ |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.offset_BEFORE_CALL_18| 24)) 0)) (not (= (select .cse26 |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.offset_BEFORE_CALL_18|) 0)) (= (select .cse26 .cse27) 0) (= (select .cse24 .cse27) 0)))) (not (= |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.offset_BEFORE_CALL_18| 0)))) (exists ((|v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.offset_BEFORE_CALL_18| Int)) (and (exists ((|v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.base_BEFORE_CALL_16| Int)) (let ((.cse29 (+ |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.offset_BEFORE_CALL_18| 16)) (.cse30 (select |c_#memory_$Pointer$.offset| |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.base_BEFORE_CALL_16|)) (.cse28 (select |c_#memory_$Pointer$.base| |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.base_BEFORE_CALL_16|)) (.cse31 (+ |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.offset_BEFORE_CALL_18| 8))) (and (= (select .cse28 .cse29) 0) (= (select .cse30 .cse29) 0) (not (= (select .cse28 |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.offset_BEFORE_CALL_18|) 0)) (= (select .cse30 .cse31) 0) (not (= 0 (select .cse30 (+ |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.offset_BEFORE_CALL_18| 24)))) (= (select .cse28 .cse31) 0)))) (not (= |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.offset_BEFORE_CALL_18| 0))))) (or (exists ((|v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base_BEFORE_CALL_81| Int)) (let ((.cse34 (select |c_#memory_$Pointer$.offset| |v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base_BEFORE_CALL_81|))) (let ((.cse33 (select .cse34 0)) (.cse32 (select |c_#memory_$Pointer$.base| |v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base_BEFORE_CALL_81|))) (and (= (select .cse32 8) 0) (not (= .cse33 0)) (= (select .cse34 16) 0) (= 16 (select (select |c_#memory_$Pointer$.offset| (select .cse32 0)) .cse33)) (= (select .cse32 24) |v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base_BEFORE_CALL_81|) (<= 2 |v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base_BEFORE_CALL_81|) (exists ((|v_ULTIMATE.start_ensure_linked_list_is_allocated_~curr~0#1.offset_42| Int)) (= |v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base_BEFORE_CALL_81| (select .cse32 |v_ULTIMATE.start_ensure_linked_list_is_allocated_~curr~0#1.offset_42|))) (= (select .cse32 16) 0) (= (select .cse34 8) 0))))) .cse35 (exists ((|v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base_BEFORE_CALL_81| Int)) (let ((.cse37 (select |c_#memory_$Pointer$.base| |v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base_BEFORE_CALL_81|))) (let ((.cse36 (select .cse37 0)) (.cse38 (select |c_#memory_$Pointer$.offset| |v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base_BEFORE_CALL_81|))) (and (not (= .cse36 0)) (= (select .cse37 8) 0) (= (select .cse38 16) 0) (= 16 (select (select |c_#memory_$Pointer$.offset| .cse36) (select .cse38 0))) (= (select .cse37 24) |v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base_BEFORE_CALL_81|) (<= 2 |v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base_BEFORE_CALL_81|) (exists ((|v_ULTIMATE.start_ensure_linked_list_is_allocated_~curr~0#1.offset_42| Int)) (= |v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base_BEFORE_CALL_81| (select .cse37 |v_ULTIMATE.start_ensure_linked_list_is_allocated_~curr~0#1.offset_42|))) (= (select .cse37 16) 0) (= (select .cse38 8) 0))))) .cse39) (or (exists ((v_DerPreprocessor_91 (Array Int Int)) (|v_ULTIMATE.start_ensure_linked_list_is_allocated_~curr~0#1.offset_42| Int) (v_DerPreprocessor_90 (Array Int Int))) (let ((.cse41 (select v_DerPreprocessor_91 |v_ULTIMATE.start_ensure_linked_list_is_allocated_~curr~0#1.offset_42|))) (let ((.cse42 (select |c_#memory_$Pointer$.base| .cse41))) (let ((.cse40 (select .cse42 24))) (and (not (= .cse40 0)) (<= 2 .cse41) (= .cse42 (store (select (store (store |c_#memory_$Pointer$.base| .cse41 v_DerPreprocessor_90) .cse40 v_DerPreprocessor_91) .cse41) 24 .cse40)) (not (= .cse41 .cse40))))))) (exists ((|v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base_BEFORE_CALL_80| Int)) (let ((.cse43 (select |c_#memory_$Pointer$.base| |v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base_BEFORE_CALL_80|))) (and (exists ((|v_ULTIMATE.start_ensure_linked_list_is_allocated_~curr~0#1.offset_42| Int)) (= (select .cse43 |v_ULTIMATE.start_ensure_linked_list_is_allocated_~curr~0#1.offset_42|) |v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base_BEFORE_CALL_80|)) (<= 2 |v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base_BEFORE_CALL_80|) (= (select .cse43 24) |v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base_BEFORE_CALL_80|))))) (or (exists ((|v_ULTIMATE.start_aws_linked_list_begin_~list#1.base_BEFORE_CALL_17| Int)) (let ((.cse45 (select |c_#memory_$Pointer$.offset| |v_ULTIMATE.start_aws_linked_list_begin_~list#1.base_BEFORE_CALL_17|))) (let ((.cse46 (select .cse45 0)) (.cse44 (select |c_#memory_$Pointer$.base| |v_ULTIMATE.start_aws_linked_list_begin_~list#1.base_BEFORE_CALL_17|))) (and (= |v_ULTIMATE.start_aws_linked_list_begin_~list#1.base_BEFORE_CALL_17| (select .cse44 24)) (= (select .cse45 8) 0) (= (select .cse44 8) 0) (= 16 (select (select |c_#memory_$Pointer$.offset| (select .cse44 0)) .cse46)) (exists ((|v_ULTIMATE.start_ensure_linked_list_is_allocated_~curr~0#1.offset_42| Int)) (= |v_ULTIMATE.start_aws_linked_list_begin_~list#1.base_BEFORE_CALL_17| (select .cse44 |v_ULTIMATE.start_ensure_linked_list_is_allocated_~curr~0#1.offset_42|))) (<= 2 |v_ULTIMATE.start_aws_linked_list_begin_~list#1.base_BEFORE_CALL_17|) (not (= .cse46 0)) (= (select .cse44 16) 0) (= (select .cse45 16) 0))))) .cse35 (exists ((|v_ULTIMATE.start_aws_linked_list_begin_~list#1.base_BEFORE_CALL_17| Int)) (let ((.cse47 (select |c_#memory_$Pointer$.base| |v_ULTIMATE.start_aws_linked_list_begin_~list#1.base_BEFORE_CALL_17|))) (let ((.cse49 (select .cse47 0)) (.cse48 (select |c_#memory_$Pointer$.offset| |v_ULTIMATE.start_aws_linked_list_begin_~list#1.base_BEFORE_CALL_17|))) (and (= |v_ULTIMATE.start_aws_linked_list_begin_~list#1.base_BEFORE_CALL_17| (select .cse47 24)) (= (select .cse48 8) 0) (= (select .cse47 8) 0) (= 16 (select (select |c_#memory_$Pointer$.offset| .cse49) (select .cse48 0))) (exists ((|v_ULTIMATE.start_ensure_linked_list_is_allocated_~curr~0#1.offset_42| Int)) (= |v_ULTIMATE.start_aws_linked_list_begin_~list#1.base_BEFORE_CALL_17| (select .cse47 |v_ULTIMATE.start_ensure_linked_list_is_allocated_~curr~0#1.offset_42|))) (not (= .cse49 0)) (<= 2 |v_ULTIMATE.start_aws_linked_list_begin_~list#1.base_BEFORE_CALL_17|) (= (select .cse47 16) 0) (= (select .cse48 16) 0))))) .cse39))) is different from true [2023-12-02 14:24:26,131 WARN L876 $PredicateComparison]: unable to prove that (let ((.cse51 (exists ((v_DerPreprocessor_91 (Array Int Int)) (|v_ULTIMATE.start_ensure_linked_list_is_allocated_~curr~0#1.offset_42| Int) (v_DerPreprocessor_90 (Array Int Int))) (let ((.cse87 (select v_DerPreprocessor_91 |v_ULTIMATE.start_ensure_linked_list_is_allocated_~curr~0#1.offset_42|))) (let ((.cse86 (select |c_#memory_$Pointer$.base| .cse87))) (let ((.cse83 (select .cse86 0)) (.cse85 (select |c_#memory_$Pointer$.offset| .cse87)) (.cse84 (select .cse86 24))) (and (not (= 0 .cse83)) (not (= .cse84 0)) (= (select .cse85 16) 0) (= 0 (select .cse86 16)) (<= 2 .cse87) (= (select .cse85 8) 0) (= .cse86 (store (select (store (store |c_#memory_$Pointer$.base| .cse87 v_DerPreprocessor_90) .cse84 v_DerPreprocessor_91) .cse87) 24 .cse84)) (= 16 (select (select |c_#memory_$Pointer$.offset| .cse83) (select .cse85 0))) (not (= .cse87 .cse84)) (= (select .cse86 8) 0))))))) (.cse55 (exists ((v_DerPreprocessor_91 (Array Int Int)) (|v_ULTIMATE.start_ensure_linked_list_is_allocated_~curr~0#1.offset_42| Int) (v_DerPreprocessor_90 (Array Int Int))) (let ((.cse81 (select v_DerPreprocessor_91 |v_ULTIMATE.start_ensure_linked_list_is_allocated_~curr~0#1.offset_42|))) (let ((.cse79 (select |c_#memory_$Pointer$.offset| .cse81)) (.cse80 (select |c_#memory_$Pointer$.base| .cse81))) (let ((.cse78 (select .cse80 24)) (.cse82 (select .cse79 0))) (and (not (= .cse78 0)) (= (select .cse79 16) 0) (= 0 (select .cse80 16)) (<= 2 .cse81) (= (select .cse79 8) 0) (= .cse80 (store (select (store (store |c_#memory_$Pointer$.base| .cse81 v_DerPreprocessor_90) .cse78 v_DerPreprocessor_91) .cse81) 24 .cse78)) (= 16 (select (select |c_#memory_$Pointer$.offset| (select .cse80 0)) .cse82)) (not (= .cse81 .cse78)) (= (select .cse80 8) 0) (not (= .cse82 0))))))))) (and (or (exists ((|v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.base_BEFORE_CALL_16| Int)) (and (exists ((|v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.offset_BEFORE_CALL_18| Int)) (let ((.cse1 (+ |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.offset_BEFORE_CALL_18| 16)) (.cse2 (select |c_#memory_$Pointer$.offset| |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.base_BEFORE_CALL_16|)) (.cse0 (select |c_#memory_$Pointer$.base| |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.base_BEFORE_CALL_16|)) (.cse3 (+ |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.offset_BEFORE_CALL_18| 8))) (and (= (select .cse0 .cse1) 0) (= (select .cse2 .cse1) 0) (not (= (select .cse0 |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.offset_BEFORE_CALL_18|) 0)) (= (select .cse2 .cse3) 0) (not (= 0 (select .cse2 (+ |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.offset_BEFORE_CALL_18| 24)))) (= (select .cse0 .cse3) 0)))) (not (= |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.base_BEFORE_CALL_16| 0)))) (exists ((|v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.base_BEFORE_CALL_16| Int)) (and (not (= |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.base_BEFORE_CALL_16| 0)) (exists ((|v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.offset_BEFORE_CALL_18| Int)) (let ((.cse5 (+ |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.offset_BEFORE_CALL_18| 16)) (.cse6 (select |c_#memory_$Pointer$.offset| |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.base_BEFORE_CALL_16|)) (.cse4 (select |c_#memory_$Pointer$.base| |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.base_BEFORE_CALL_16|)) (.cse7 (+ |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.offset_BEFORE_CALL_18| 8))) (and (= (select .cse4 .cse5) 0) (= (select .cse6 .cse5) 0) (not (= (select .cse6 |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.offset_BEFORE_CALL_18|) 0)) (= (select .cse6 .cse7) 0) (not (= 0 (select .cse6 (+ |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.offset_BEFORE_CALL_18| 24)))) (= (select .cse4 .cse7) 0)))))) (exists ((|v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.offset_BEFORE_CALL_18| Int)) (and (exists ((|v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.base_BEFORE_CALL_16| Int)) (let ((.cse9 (+ |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.offset_BEFORE_CALL_18| 16)) (.cse10 (select |c_#memory_$Pointer$.offset| |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.base_BEFORE_CALL_16|)) (.cse8 (select |c_#memory_$Pointer$.base| |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.base_BEFORE_CALL_16|)) (.cse11 (+ |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.offset_BEFORE_CALL_18| 8))) (and (= (select .cse8 .cse9) 0) (= (select .cse10 .cse9) 0) (not (= (select .cse8 |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.offset_BEFORE_CALL_18|) 0)) (not (= (select .cse8 (+ |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.offset_BEFORE_CALL_18| 24)) 0)) (= (select .cse10 .cse11) 0) (= (select .cse8 .cse11) 0)))) (not (= |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.offset_BEFORE_CALL_18| 0)))) (exists ((|v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.offset_BEFORE_CALL_18| Int)) (and (exists ((|v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.base_BEFORE_CALL_16| Int)) (let ((.cse13 (+ |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.offset_BEFORE_CALL_18| 16)) (.cse14 (select |c_#memory_$Pointer$.offset| |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.base_BEFORE_CALL_16|)) (.cse12 (select |c_#memory_$Pointer$.base| |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.base_BEFORE_CALL_16|)) (.cse15 (+ |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.offset_BEFORE_CALL_18| 8))) (and (= (select .cse12 .cse13) 0) (= (select .cse14 .cse13) 0) (not (= (select .cse14 |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.offset_BEFORE_CALL_18|) 0)) (= (select .cse14 .cse15) 0) (not (= 0 (select .cse14 (+ |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.offset_BEFORE_CALL_18| 24)))) (= (select .cse12 .cse15) 0)))) (not (= |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.offset_BEFORE_CALL_18| 0)))) (exists ((|v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.base_BEFORE_CALL_16| Int)) (and (not (= |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.base_BEFORE_CALL_16| 0)) (exists ((|v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.offset_BEFORE_CALL_18| Int)) (let ((.cse17 (+ |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.offset_BEFORE_CALL_18| 16)) (.cse18 (select |c_#memory_$Pointer$.offset| |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.base_BEFORE_CALL_16|)) (.cse16 (select |c_#memory_$Pointer$.base| |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.base_BEFORE_CALL_16|)) (.cse19 (+ |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.offset_BEFORE_CALL_18| 8))) (and (= (select .cse16 .cse17) 0) (= (select .cse18 .cse17) 0) (not (= (select .cse16 |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.offset_BEFORE_CALL_18|) 0)) (not (= (select .cse16 (+ |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.offset_BEFORE_CALL_18| 24)) 0)) (= (select .cse18 .cse19) 0) (= (select .cse16 .cse19) 0)))))) (exists ((|v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.base_BEFORE_CALL_16| Int)) (and (exists ((|v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.offset_BEFORE_CALL_18| Int)) (let ((.cse21 (+ |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.offset_BEFORE_CALL_18| 16)) (.cse22 (select |c_#memory_$Pointer$.offset| |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.base_BEFORE_CALL_16|)) (.cse20 (select |c_#memory_$Pointer$.base| |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.base_BEFORE_CALL_16|)) (.cse23 (+ |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.offset_BEFORE_CALL_18| 8))) (and (= (select .cse20 .cse21) 0) (= (select .cse22 .cse21) 0) (not (= (select .cse20 (+ |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.offset_BEFORE_CALL_18| 24)) 0)) (not (= (select .cse22 |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.offset_BEFORE_CALL_18|) 0)) (= (select .cse22 .cse23) 0) (= (select .cse20 .cse23) 0)))) (not (= |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.base_BEFORE_CALL_16| 0)))) (exists ((|v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.offset_BEFORE_CALL_18| Int)) (and (exists ((|v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.base_BEFORE_CALL_16| Int)) (let ((.cse25 (+ |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.offset_BEFORE_CALL_18| 16)) (.cse26 (select |c_#memory_$Pointer$.offset| |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.base_BEFORE_CALL_16|)) (.cse24 (select |c_#memory_$Pointer$.base| |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.base_BEFORE_CALL_16|)) (.cse27 (+ |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.offset_BEFORE_CALL_18| 8))) (and (= (select .cse24 .cse25) 0) (= (select .cse26 .cse25) 0) (not (= (select .cse24 (+ |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.offset_BEFORE_CALL_18| 24)) 0)) (not (= (select .cse26 |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.offset_BEFORE_CALL_18|) 0)) (= (select .cse26 .cse27) 0) (= (select .cse24 .cse27) 0)))) (not (= |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.offset_BEFORE_CALL_18| 0)))) (exists ((|v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.offset_BEFORE_CALL_18| Int)) (and (exists ((|v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.base_BEFORE_CALL_16| Int)) (let ((.cse29 (+ |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.offset_BEFORE_CALL_18| 16)) (.cse30 (select |c_#memory_$Pointer$.offset| |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.base_BEFORE_CALL_16|)) (.cse28 (select |c_#memory_$Pointer$.base| |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.base_BEFORE_CALL_16|)) (.cse31 (+ |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.offset_BEFORE_CALL_18| 8))) (and (= (select .cse28 .cse29) 0) (= (select .cse30 .cse29) 0) (not (= (select .cse28 |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.offset_BEFORE_CALL_18|) 0)) (= (select .cse30 .cse31) 0) (not (= 0 (select .cse30 (+ |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.offset_BEFORE_CALL_18| 24)))) (= (select .cse28 .cse31) 0)))) (not (= |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.offset_BEFORE_CALL_18| 0))))) (let ((.cse34 (not |c_aws_linked_list_is_valid_#t~short312#1|)) (.cse32 (= |c_aws_linked_list_is_valid_#in~list#1.offset| 0)) (.cse33 (= |c_aws_linked_list_is_valid_#in~list#1.base| 0))) (or (and .cse32 .cse33 .cse34) (and (let ((.cse41 (select |c_#memory_$Pointer$.offset| |c_aws_linked_list_is_valid_#in~list#1.base|)) (.cse43 (select |c_#memory_$Pointer$.base| |c_aws_linked_list_is_valid_#in~list#1.base|))) (let ((.cse46 (= (select .cse43 |c_aws_linked_list_is_valid_#in~list#1.offset|) 0)) (.cse47 (= (select .cse41 |c_aws_linked_list_is_valid_#in~list#1.offset|) 0))) (or (and (let ((.cse45 (+ |c_aws_linked_list_is_valid_#in~list#1.offset| 24)) (.cse44 (+ |c_aws_linked_list_is_valid_#in~list#1.offset| 8))) (let ((.cse38 (= (select .cse41 .cse44) 0)) (.cse37 (= (select .cse43 .cse45) 0)) (.cse36 (= (select .cse41 .cse45) 0)) (.cse35 (= (select .cse43 .cse44) 0))) (or (and (or (not .cse35) (and .cse36 .cse37) (not .cse38)) .cse34) (and .cse38 (let ((.cse42 (+ 16 |c_aws_linked_list_is_valid_#in~list#1.offset|))) (let ((.cse39 (= (select .cse43 .cse42) 0)) (.cse40 (= (select .cse41 .cse42) 0))) (or (and (or (not .cse39) (not .cse40)) .cse34) (and .cse39 .cse40 |c_aws_linked_list_is_valid_#t~short312#1|)))) (or (not .cse37) (not .cse36)) .cse35)))) (or (not .cse46) (not .cse47))) (and .cse46 .cse34 .cse47)))) (or (not .cse32) (not .cse33))))) (or (exists ((|v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base_BEFORE_CALL_81| Int)) (let ((.cse50 (select |c_#memory_$Pointer$.offset| |v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base_BEFORE_CALL_81|))) (let ((.cse49 (select .cse50 0)) (.cse48 (select |c_#memory_$Pointer$.base| |v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base_BEFORE_CALL_81|))) (and (= (select .cse48 8) 0) (not (= .cse49 0)) (= (select .cse50 16) 0) (= 16 (select (select |c_#memory_$Pointer$.offset| (select .cse48 0)) .cse49)) (= (select .cse48 24) |v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base_BEFORE_CALL_81|) (<= 2 |v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base_BEFORE_CALL_81|) (exists ((|v_ULTIMATE.start_ensure_linked_list_is_allocated_~curr~0#1.offset_42| Int)) (= |v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base_BEFORE_CALL_81| (select .cse48 |v_ULTIMATE.start_ensure_linked_list_is_allocated_~curr~0#1.offset_42|))) (= (select .cse48 16) 0) (= (select .cse50 8) 0))))) .cse51 (exists ((|v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base_BEFORE_CALL_81| Int)) (let ((.cse53 (select |c_#memory_$Pointer$.base| |v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base_BEFORE_CALL_81|))) (let ((.cse52 (select .cse53 0)) (.cse54 (select |c_#memory_$Pointer$.offset| |v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base_BEFORE_CALL_81|))) (and (not (= .cse52 0)) (= (select .cse53 8) 0) (= (select .cse54 16) 0) (= 16 (select (select |c_#memory_$Pointer$.offset| .cse52) (select .cse54 0))) (= (select .cse53 24) |v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base_BEFORE_CALL_81|) (<= 2 |v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base_BEFORE_CALL_81|) (exists ((|v_ULTIMATE.start_ensure_linked_list_is_allocated_~curr~0#1.offset_42| Int)) (= |v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base_BEFORE_CALL_81| (select .cse53 |v_ULTIMATE.start_ensure_linked_list_is_allocated_~curr~0#1.offset_42|))) (= (select .cse53 16) 0) (= (select .cse54 8) 0))))) .cse55) (or .cse51 (exists ((|v_ULTIMATE.start_ensure_linked_list_is_allocated_~curr~0#1.offset_42| Int) (|v_ULTIMATE.start_aws_linked_list_begin_~list#1.base_BEFORE_CALL_19| Int)) (let ((.cse57 (select |c_#memory_$Pointer$.base| |v_ULTIMATE.start_aws_linked_list_begin_~list#1.base_BEFORE_CALL_19|))) (let ((.cse58 (select .cse57 0)) (.cse56 (select |c_#memory_$Pointer$.offset| |v_ULTIMATE.start_aws_linked_list_begin_~list#1.base_BEFORE_CALL_19|))) (and (= (select .cse56 8) 0) (= (select .cse57 8) 0) (not (= .cse58 0)) (= (select .cse57 16) 0) (<= 2 |v_ULTIMATE.start_aws_linked_list_begin_~list#1.base_BEFORE_CALL_19|) (= |v_ULTIMATE.start_aws_linked_list_begin_~list#1.base_BEFORE_CALL_19| (select .cse57 24)) (= (select (select |c_#memory_$Pointer$.offset| .cse58) (select .cse56 0)) 16) (= |v_ULTIMATE.start_aws_linked_list_begin_~list#1.base_BEFORE_CALL_19| (select .cse57 |v_ULTIMATE.start_ensure_linked_list_is_allocated_~curr~0#1.offset_42|)) (= (select .cse56 16) 0))))) (exists ((|v_ULTIMATE.start_ensure_linked_list_is_allocated_~curr~0#1.offset_42| Int) (|v_ULTIMATE.start_aws_linked_list_begin_~list#1.base_BEFORE_CALL_19| Int)) (let ((.cse60 (select |c_#memory_$Pointer$.offset| |v_ULTIMATE.start_aws_linked_list_begin_~list#1.base_BEFORE_CALL_19|))) (let ((.cse59 (select .cse60 0)) (.cse61 (select |c_#memory_$Pointer$.base| |v_ULTIMATE.start_aws_linked_list_begin_~list#1.base_BEFORE_CALL_19|))) (and (not (= .cse59 0)) (= (select .cse60 8) 0) (= (select .cse61 8) 0) (= (select .cse61 16) 0) (<= 2 |v_ULTIMATE.start_aws_linked_list_begin_~list#1.base_BEFORE_CALL_19|) (= |v_ULTIMATE.start_aws_linked_list_begin_~list#1.base_BEFORE_CALL_19| (select .cse61 24)) (= (select (select |c_#memory_$Pointer$.offset| (select .cse61 0)) .cse59) 16) (= |v_ULTIMATE.start_aws_linked_list_begin_~list#1.base_BEFORE_CALL_19| (select .cse61 |v_ULTIMATE.start_ensure_linked_list_is_allocated_~curr~0#1.offset_42|)) (= (select .cse60 16) 0))))) .cse55) (or (exists ((v_DerPreprocessor_91 (Array Int Int)) (|v_ULTIMATE.start_ensure_linked_list_is_allocated_~curr~0#1.offset_42| Int) (v_DerPreprocessor_90 (Array Int Int))) (let ((.cse63 (select v_DerPreprocessor_91 |v_ULTIMATE.start_ensure_linked_list_is_allocated_~curr~0#1.offset_42|))) (let ((.cse64 (select |c_#memory_$Pointer$.base| .cse63))) (let ((.cse62 (select .cse64 24))) (and (not (= .cse62 0)) (<= 2 .cse63) (= .cse64 (store (select (store (store |c_#memory_$Pointer$.base| .cse63 v_DerPreprocessor_90) .cse62 v_DerPreprocessor_91) .cse63) 24 .cse62)) (not (= .cse63 .cse62))))))) (exists ((|v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base_BEFORE_CALL_80| Int)) (let ((.cse65 (select |c_#memory_$Pointer$.base| |v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base_BEFORE_CALL_80|))) (and (exists ((|v_ULTIMATE.start_ensure_linked_list_is_allocated_~curr~0#1.offset_42| Int)) (= (select .cse65 |v_ULTIMATE.start_ensure_linked_list_is_allocated_~curr~0#1.offset_42|) |v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base_BEFORE_CALL_80|)) (<= 2 |v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base_BEFORE_CALL_80|) (= (select .cse65 24) |v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base_BEFORE_CALL_80|))))) (or (exists ((|v_ULTIMATE.start_aws_linked_list_begin_~list#1.base_BEFORE_CALL_18| Int)) (let ((.cse68 (select |c_#memory_$Pointer$.base| |v_ULTIMATE.start_aws_linked_list_begin_~list#1.base_BEFORE_CALL_18|))) (let ((.cse66 (select .cse68 0)) (.cse67 (select |c_#memory_$Pointer$.offset| |v_ULTIMATE.start_aws_linked_list_begin_~list#1.base_BEFORE_CALL_18|))) (and (not (= .cse66 0)) (= (select .cse67 8) 0) (= |v_ULTIMATE.start_aws_linked_list_begin_~list#1.base_BEFORE_CALL_18| (select .cse68 24)) (= (select .cse68 8) 0) (<= 2 |v_ULTIMATE.start_aws_linked_list_begin_~list#1.base_BEFORE_CALL_18|) (= (select .cse68 16) 0) (= (select .cse67 16) 0) (exists ((|v_ULTIMATE.start_ensure_linked_list_is_allocated_~curr~0#1.offset_42| Int)) (= |v_ULTIMATE.start_aws_linked_list_begin_~list#1.base_BEFORE_CALL_18| (select .cse68 |v_ULTIMATE.start_ensure_linked_list_is_allocated_~curr~0#1.offset_42|))) (= (select (select |c_#memory_$Pointer$.offset| .cse66) (select .cse67 0)) 16))))) (exists ((|v_ULTIMATE.start_aws_linked_list_begin_~list#1.base_BEFORE_CALL_18| Int)) (let ((.cse69 (select |c_#memory_$Pointer$.offset| |v_ULTIMATE.start_aws_linked_list_begin_~list#1.base_BEFORE_CALL_18|))) (let ((.cse70 (select |c_#memory_$Pointer$.base| |v_ULTIMATE.start_aws_linked_list_begin_~list#1.base_BEFORE_CALL_18|)) (.cse71 (select .cse69 0))) (and (= (select .cse69 8) 0) (= |v_ULTIMATE.start_aws_linked_list_begin_~list#1.base_BEFORE_CALL_18| (select .cse70 24)) (= (select .cse70 8) 0) (not (= .cse71 0)) (<= 2 |v_ULTIMATE.start_aws_linked_list_begin_~list#1.base_BEFORE_CALL_18|) (= (select .cse70 16) 0) (= (select .cse69 16) 0) (exists ((|v_ULTIMATE.start_ensure_linked_list_is_allocated_~curr~0#1.offset_42| Int)) (= |v_ULTIMATE.start_aws_linked_list_begin_~list#1.base_BEFORE_CALL_18| (select .cse70 |v_ULTIMATE.start_ensure_linked_list_is_allocated_~curr~0#1.offset_42|))) (= (select (select |c_#memory_$Pointer$.offset| (select .cse70 0)) .cse71) 16))))) .cse51 .cse55) (or (exists ((|v_ULTIMATE.start_aws_linked_list_begin_~list#1.base_BEFORE_CALL_17| Int)) (let ((.cse73 (select |c_#memory_$Pointer$.offset| |v_ULTIMATE.start_aws_linked_list_begin_~list#1.base_BEFORE_CALL_17|))) (let ((.cse74 (select .cse73 0)) (.cse72 (select |c_#memory_$Pointer$.base| |v_ULTIMATE.start_aws_linked_list_begin_~list#1.base_BEFORE_CALL_17|))) (and (= |v_ULTIMATE.start_aws_linked_list_begin_~list#1.base_BEFORE_CALL_17| (select .cse72 24)) (= (select .cse73 8) 0) (= (select .cse72 8) 0) (= 16 (select (select |c_#memory_$Pointer$.offset| (select .cse72 0)) .cse74)) (exists ((|v_ULTIMATE.start_ensure_linked_list_is_allocated_~curr~0#1.offset_42| Int)) (= |v_ULTIMATE.start_aws_linked_list_begin_~list#1.base_BEFORE_CALL_17| (select .cse72 |v_ULTIMATE.start_ensure_linked_list_is_allocated_~curr~0#1.offset_42|))) (<= 2 |v_ULTIMATE.start_aws_linked_list_begin_~list#1.base_BEFORE_CALL_17|) (not (= .cse74 0)) (= (select .cse72 16) 0) (= (select .cse73 16) 0))))) .cse51 (exists ((|v_ULTIMATE.start_aws_linked_list_begin_~list#1.base_BEFORE_CALL_17| Int)) (let ((.cse75 (select |c_#memory_$Pointer$.base| |v_ULTIMATE.start_aws_linked_list_begin_~list#1.base_BEFORE_CALL_17|))) (let ((.cse77 (select .cse75 0)) (.cse76 (select |c_#memory_$Pointer$.offset| |v_ULTIMATE.start_aws_linked_list_begin_~list#1.base_BEFORE_CALL_17|))) (and (= |v_ULTIMATE.start_aws_linked_list_begin_~list#1.base_BEFORE_CALL_17| (select .cse75 24)) (= (select .cse76 8) 0) (= (select .cse75 8) 0) (= 16 (select (select |c_#memory_$Pointer$.offset| .cse77) (select .cse76 0))) (exists ((|v_ULTIMATE.start_ensure_linked_list_is_allocated_~curr~0#1.offset_42| Int)) (= |v_ULTIMATE.start_aws_linked_list_begin_~list#1.base_BEFORE_CALL_17| (select .cse75 |v_ULTIMATE.start_ensure_linked_list_is_allocated_~curr~0#1.offset_42|))) (not (= .cse77 0)) (<= 2 |v_ULTIMATE.start_aws_linked_list_begin_~list#1.base_BEFORE_CALL_17|) (= (select .cse75 16) 0) (= (select .cse76 16) 0))))) .cse55))) is different from true [2023-12-02 14:24:29,895 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 5 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 37 not checked. [2023-12-02 14:24:29,895 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 14:24:35,874 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 3 proven. 26 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-12-02 14:24:35,874 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1047341966] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 14:24:35,874 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [655270796] [2023-12-02 14:24:35,877 INFO L159 IcfgInterpreter]: Started Sifa with 35 locations of interest [2023-12-02 14:24:35,877 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 14:24:35,877 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-12-02 14:24:35,877 INFO L176 IcfgInterpreter]: Starting interpretation [2023-12-02 14:24:35,877 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-12-02 14:24:41,338 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 78 for LOIs [2023-12-02 14:24:41,366 INFO L197 IcfgInterpreter]: Interpreting procedure aws_linked_list_is_valid with input of size 68 for LOIs [2023-12-02 14:24:41,482 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 9 for LOIs [2023-12-02 14:24:41,484 INFO L197 IcfgInterpreter]: Interpreting procedure nondet_uint64_t with input of size 94 for LOIs [2023-12-02 14:24:41,505 INFO L197 IcfgInterpreter]: Interpreting procedure aws_linked_list_node_next_is_valid with input of size 1 for LOIs [2023-12-02 14:24:41,533 INFO L180 IcfgInterpreter]: Interpretation finished [2023-12-02 14:24:46,237 WARN L876 $PredicateComparison]: unable to prove that (and (exists ((|v_ULTIMATE.start_ensure_linked_list_is_allocated_~length~1#1_22| Int) (|v_ULTIMATE.start_ensure_linked_list_is_allocated_~i~1#1_39| Int)) (<= (mod |v_ULTIMATE.start_ensure_linked_list_is_allocated_~length~1#1_22| 18446744073709551616) (mod |v_ULTIMATE.start_ensure_linked_list_is_allocated_~i~1#1_39| 18446744073709551616))) (exists ((|v_#memory_int_30| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.base_99| (Array Int (Array Int Int))) (|v_#memory_int_105| (Array Int (Array Int Int))) (|v_#memory_real_27| (Array Int (Array Int Real))) (|v_#memory_real_102| (Array Int (Array Int Real))) (|v_ULTIMATE.start_ensure_linked_list_is_allocated_~list#1.base_24| Int) (|v_ULTIMATE.start_ensure_linked_list_is_allocated_~list#1.offset_24| Int) (|v_#memory_$Pointer$.offset_103| (Array Int (Array Int Int)))) (let ((.cse2 (+ |v_ULTIMATE.start_ensure_linked_list_is_allocated_~list#1.offset_24| 24))) (let ((.cse0 (select (select |c_#memory_$Pointer$.base| |v_ULTIMATE.start_ensure_linked_list_is_allocated_~list#1.base_24|) .cse2)) (.cse1 (select (select |c_#memory_$Pointer$.offset| |v_ULTIMATE.start_ensure_linked_list_is_allocated_~list#1.base_24|) .cse2))) (and (= |v_#memory_int_30| (store |v_#memory_int_105| .cse0 (store (select |v_#memory_int_105| .cse0) .cse1 (select (select |v_#memory_int_30| .cse0) .cse1)))) (= |c_#memory_real| (store |v_#memory_real_27| |v_ULTIMATE.start_ensure_linked_list_is_allocated_~list#1.base_24| (store (select |v_#memory_real_27| |v_ULTIMATE.start_ensure_linked_list_is_allocated_~list#1.base_24|) .cse2 (select (select |c_#memory_real| |v_ULTIMATE.start_ensure_linked_list_is_allocated_~list#1.base_24|) .cse2)))) (= |c_#memory_$Pointer$.base| (let ((.cse3 (store |v_#memory_$Pointer$.base_99| .cse0 (store (select |v_#memory_$Pointer$.base_99| .cse0) .cse1 |v_ULTIMATE.start_ensure_linked_list_is_allocated_~list#1.base_24|)))) (store .cse3 |v_ULTIMATE.start_ensure_linked_list_is_allocated_~list#1.base_24| (store (select .cse3 |v_ULTIMATE.start_ensure_linked_list_is_allocated_~list#1.base_24|) .cse2 .cse0)))) (= (let ((.cse4 (store |v_#memory_$Pointer$.offset_103| .cse0 (store (select |v_#memory_$Pointer$.offset_103| .cse0) .cse1 (+ 16 |v_ULTIMATE.start_ensure_linked_list_is_allocated_~list#1.offset_24|))))) (store .cse4 |v_ULTIMATE.start_ensure_linked_list_is_allocated_~list#1.base_24| (store (select .cse4 |v_ULTIMATE.start_ensure_linked_list_is_allocated_~list#1.base_24|) .cse2 .cse1))) |c_#memory_$Pointer$.offset|) (= |v_#memory_real_27| (store |v_#memory_real_102| .cse0 (store (select |v_#memory_real_102| .cse0) .cse1 (select (select |v_#memory_real_27| .cse0) .cse1)))) (= (store |v_#memory_int_30| |v_ULTIMATE.start_ensure_linked_list_is_allocated_~list#1.base_24| (store (select |v_#memory_int_30| |v_ULTIMATE.start_ensure_linked_list_is_allocated_~list#1.base_24|) .cse2 (select (select |c_#memory_int| |v_ULTIMATE.start_ensure_linked_list_is_allocated_~list#1.base_24|) .cse2))) |c_#memory_int|)))))) is different from true [2023-12-02 14:24:46,245 WARN L876 $PredicateComparison]: unable to prove that (and (exists ((|v_ULTIMATE.start_ensure_linked_list_is_allocated_~length~1#1_22| Int) (|v_ULTIMATE.start_ensure_linked_list_is_allocated_~i~1#1_39| Int)) (<= (mod |v_ULTIMATE.start_ensure_linked_list_is_allocated_~length~1#1_22| 18446744073709551616) (mod |v_ULTIMATE.start_ensure_linked_list_is_allocated_~i~1#1_39| 18446744073709551616))) (exists ((|v_#memory_int_30| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.base_99| (Array Int (Array Int Int))) (|v_#memory_real_27| (Array Int (Array Int Real))) (|v_#memory_int_105| (Array Int (Array Int Int))) (|v_#memory_real_102| (Array Int (Array Int Real))) (|v_ULTIMATE.start_ensure_linked_list_is_allocated_~list#1.base_24| Int) (|v_ULTIMATE.start_ensure_linked_list_is_allocated_~list#1.offset_24| Int) (|v_#memory_$Pointer$.offset_103| (Array Int (Array Int Int)))) (let ((.cse2 (+ |v_ULTIMATE.start_ensure_linked_list_is_allocated_~list#1.offset_24| 24))) (let ((.cse0 (select (select |c_#memory_$Pointer$.base| |v_ULTIMATE.start_ensure_linked_list_is_allocated_~list#1.base_24|) .cse2)) (.cse1 (select (select |c_#memory_$Pointer$.offset| |v_ULTIMATE.start_ensure_linked_list_is_allocated_~list#1.base_24|) .cse2))) (and (= |v_#memory_int_30| (store |v_#memory_int_105| .cse0 (store (select |v_#memory_int_105| .cse0) .cse1 (select (select |v_#memory_int_30| .cse0) .cse1)))) (= |c_#memory_real| (store |v_#memory_real_27| |v_ULTIMATE.start_ensure_linked_list_is_allocated_~list#1.base_24| (store (select |v_#memory_real_27| |v_ULTIMATE.start_ensure_linked_list_is_allocated_~list#1.base_24|) .cse2 (select (select |c_#memory_real| |v_ULTIMATE.start_ensure_linked_list_is_allocated_~list#1.base_24|) .cse2)))) (= |c_#memory_$Pointer$.base| (let ((.cse3 (store |v_#memory_$Pointer$.base_99| .cse0 (store (select |v_#memory_$Pointer$.base_99| .cse0) .cse1 |v_ULTIMATE.start_ensure_linked_list_is_allocated_~list#1.base_24|)))) (store .cse3 |v_ULTIMATE.start_ensure_linked_list_is_allocated_~list#1.base_24| (store (select .cse3 |v_ULTIMATE.start_ensure_linked_list_is_allocated_~list#1.base_24|) .cse2 .cse0)))) (= (let ((.cse4 (store |v_#memory_$Pointer$.offset_103| .cse0 (store (select |v_#memory_$Pointer$.offset_103| .cse0) .cse1 (+ 16 |v_ULTIMATE.start_ensure_linked_list_is_allocated_~list#1.offset_24|))))) (store .cse4 |v_ULTIMATE.start_ensure_linked_list_is_allocated_~list#1.base_24| (store (select .cse4 |v_ULTIMATE.start_ensure_linked_list_is_allocated_~list#1.base_24|) .cse2 .cse1))) |c_#memory_$Pointer$.offset|) (= |v_#memory_real_27| (store |v_#memory_real_102| .cse0 (store (select |v_#memory_real_102| .cse0) .cse1 (select (select |v_#memory_real_27| .cse0) .cse1)))) (= (store |v_#memory_int_30| |v_ULTIMATE.start_ensure_linked_list_is_allocated_~list#1.base_24| (store (select |v_#memory_int_30| |v_ULTIMATE.start_ensure_linked_list_is_allocated_~list#1.base_24|) .cse2 (select (select |c_#memory_int| |v_ULTIMATE.start_ensure_linked_list_is_allocated_~list#1.base_24|) .cse2))) |c_#memory_int|)))))) is different from true [2023-12-02 14:24:51,541 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '5413#(and (<= 0 |__VERIFIER_assert_#in~cond|) (exists ((|v_ULTIMATE.start_ensure_linked_list_is_allocated_~length~1#1_22| Int) (|v_ULTIMATE.start_ensure_linked_list_is_allocated_~i~1#1_39| Int)) (<= (mod |v_ULTIMATE.start_ensure_linked_list_is_allocated_~length~1#1_22| 18446744073709551616) (mod |v_ULTIMATE.start_ensure_linked_list_is_allocated_~i~1#1_39| 18446744073709551616))) (= (mod __VERIFIER_assert_~cond 256) 0) (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond) (exists ((|v_#memory_int_30| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.base_99| (Array Int (Array Int Int))) (|v_#memory_real_27| (Array Int (Array Int Real))) (|v_#memory_int_105| (Array Int (Array Int Int))) (|v_#memory_real_102| (Array Int (Array Int Real))) (|v_ULTIMATE.start_ensure_linked_list_is_allocated_~list#1.base_24| Int) (|v_ULTIMATE.start_ensure_linked_list_is_allocated_~list#1.offset_24| Int) (|v_#memory_$Pointer$.offset_103| (Array Int (Array Int Int)))) (and (= (store |v_#memory_int_105| (select (select |#memory_$Pointer$.base| |v_ULTIMATE.start_ensure_linked_list_is_allocated_~list#1.base_24|) (+ |v_ULTIMATE.start_ensure_linked_list_is_allocated_~list#1.offset_24| 24)) (store (select |v_#memory_int_105| (select (select |#memory_$Pointer$.base| |v_ULTIMATE.start_ensure_linked_list_is_allocated_~list#1.base_24|) (+ |v_ULTIMATE.start_ensure_linked_list_is_allocated_~list#1.offset_24| 24))) (select (select |#memory_$Pointer$.offset| |v_ULTIMATE.start_ensure_linked_list_is_allocated_~list#1.base_24|) (+ |v_ULTIMATE.start_ensure_linked_list_is_allocated_~list#1.offset_24| 24)) (select (select |v_#memory_int_30| (select (select |#memory_$Pointer$.base| |v_ULTIMATE.start_ensure_linked_list_is_allocated_~list#1.base_24|) (+ |v_ULTIMATE.start_ensure_linked_list_is_allocated_~list#1.offset_24| 24))) (select (select |#memory_$Pointer$.offset| |v_ULTIMATE.start_ensure_linked_list_is_allocated_~list#1.base_24|) (+ |v_ULTIMATE.start_ensure_linked_list_is_allocated_~list#1.offset_24| 24))))) |v_#memory_int_30|) (= (store |v_#memory_real_102| (select (select |#memory_$Pointer$.base| |v_ULTIMATE.start_ensure_linked_list_is_allocated_~list#1.base_24|) (+ |v_ULTIMATE.start_ensure_linked_list_is_allocated_~list#1.offset_24| 24)) (store (select |v_#memory_real_102| (select (select |#memory_$Pointer$.base| |v_ULTIMATE.start_ensure_linked_list_is_allocated_~list#1.base_24|) (+ |v_ULTIMATE.start_ensure_linked_list_is_allocated_~list#1.offset_24| 24))) (select (select |#memory_$Pointer$.offset| |v_ULTIMATE.start_ensure_linked_list_is_allocated_~list#1.base_24|) (+ |v_ULTIMATE.start_ensure_linked_list_is_allocated_~list#1.offset_24| 24)) (select (select |v_#memory_real_27| (select (select |#memory_$Pointer$.base| |v_ULTIMATE.start_ensure_linked_list_is_allocated_~list#1.base_24|) (+ |v_ULTIMATE.start_ensure_linked_list_is_allocated_~list#1.offset_24| 24))) (select (select |#memory_$Pointer$.offset| |v_ULTIMATE.start_ensure_linked_list_is_allocated_~list#1.base_24|) (+ |v_ULTIMATE.start_ensure_linked_list_is_allocated_~list#1.offset_24| 24))))) |v_#memory_real_27|) (= |#memory_real| (store |v_#memory_real_27| |v_ULTIMATE.start_ensure_linked_list_is_allocated_~list#1.base_24| (store (select |v_#memory_real_27| |v_ULTIMATE.start_ensure_linked_list_is_allocated_~list#1.base_24|) (+ |v_ULTIMATE.start_ensure_linked_list_is_allocated_~list#1.offset_24| 24) (select (select |#memory_real| |v_ULTIMATE.start_ensure_linked_list_is_allocated_~list#1.base_24|) (+ |v_ULTIMATE.start_ensure_linked_list_is_allocated_~list#1.offset_24| 24))))) (= (store (store |v_#memory_$Pointer$.base_99| (select (select |#memory_$Pointer$.base| |v_ULTIMATE.start_ensure_linked_list_is_allocated_~list#1.base_24|) (+ |v_ULTIMATE.start_ensure_linked_list_is_allocated_~list#1.offset_24| 24)) (store (select |v_#memory_$Pointer$.base_99| (select (select |#memory_$Pointer$.base| |v_ULTIMATE.start_ensure_linked_list_is_allocated_~list#1.base_24|) (+ |v_ULTIMATE.start_ensure_linked_list_is_allocated_~list#1.offset_24| 24))) (select (select |#memory_$Pointer$.offset| |v_ULTIMATE.start_ensure_linked_list_is_allocated_~list#1.base_24|) (+ |v_ULTIMATE.start_ensure_linked_list_is_allocated_~list#1.offset_24| 24)) |v_ULTIMATE.start_ensure_linked_list_is_allocated_~list#1.base_24|)) |v_ULTIMATE.start_ensure_linked_list_is_allocated_~list#1.base_24| (store (select (store |v_#memory_$Pointer$.base_99| (select (select |#memory_$Pointer$.base| |v_ULTIMATE.start_ensure_linked_list_is_allocated_~list#1.base_24|) (+ |v_ULTIMATE.start_ensure_linked_list_is_allocated_~list#1.offset_24| 24)) (store (select |v_#memory_$Pointer$.base_99| (select (select |#memory_$Pointer$.base| |v_ULTIMATE.start_ensure_linked_list_is_allocated_~list#1.base_24|) (+ |v_ULTIMATE.start_ensure_linked_list_is_allocated_~list#1.offset_24| 24))) (select (select |#memory_$Pointer$.offset| |v_ULTIMATE.start_ensure_linked_list_is_allocated_~list#1.base_24|) (+ |v_ULTIMATE.start_ensure_linked_list_is_allocated_~list#1.offset_24| 24)) |v_ULTIMATE.start_ensure_linked_list_is_allocated_~list#1.base_24|)) |v_ULTIMATE.start_ensure_linked_list_is_allocated_~list#1.base_24|) (+ |v_ULTIMATE.start_ensure_linked_list_is_allocated_~list#1.offset_24| 24) (select (select |#memory_$Pointer$.base| |v_ULTIMATE.start_ensure_linked_list_is_allocated_~list#1.base_24|) (+ |v_ULTIMATE.start_ensure_linked_list_is_allocated_~list#1.offset_24| 24)))) |#memory_$Pointer$.base|) (= |#memory_$Pointer$.offset| (store (store |v_#memory_$Pointer$.offset_103| (select (select |#memory_$Pointer$.base| |v_ULTIMATE.start_ensure_linked_list_is_allocated_~list#1.base_24|) (+ |v_ULTIMATE.start_ensure_linked_list_is_allocated_~list#1.offset_24| 24)) (store (select |v_#memory_$Pointer$.offset_103| (select (select |#memory_$Pointer$.base| |v_ULTIMATE.start_ensure_linked_list_is_allocated_~list#1.base_24|) (+ |v_ULTIMATE.start_ensure_linked_list_is_allocated_~list#1.offset_24| 24))) (select (select |#memory_$Pointer$.offset| |v_ULTIMATE.start_ensure_linked_list_is_allocated_~list#1.base_24|) (+ |v_ULTIMATE.start_ensure_linked_list_is_allocated_~list#1.offset_24| 24)) (+ 16 |v_ULTIMATE.start_ensure_linked_list_is_allocated_~list#1.offset_24|))) |v_ULTIMATE.start_ensure_linked_list_is_allocated_~list#1.base_24| (store (select (store |v_#memory_$Pointer$.offset_103| (select (select |#memory_$Pointer$.base| |v_ULTIMATE.start_ensure_linked_list_is_allocated_~list#1.base_24|) (+ |v_ULTIMATE.start_ensure_linked_list_is_allocated_~list#1.offset_24| 24)) (store (select |v_#memory_$Pointer$.offset_103| (select (select |#memory_$Pointer$.base| |v_ULTIMATE.start_ensure_linked_list_is_allocated_~list#1.base_24|) (+ |v_ULTIMATE.start_ensure_linked_list_is_allocated_~list#1.offset_24| 24))) (select (select |#memory_$Pointer$.offset| |v_ULTIMATE.start_ensure_linked_list_is_allocated_~list#1.base_24|) (+ |v_ULTIMATE.start_ensure_linked_list_is_allocated_~list#1.offset_24| 24)) (+ 16 |v_ULTIMATE.start_ensure_linked_list_is_allocated_~list#1.offset_24|))) |v_ULTIMATE.start_ensure_linked_list_is_allocated_~list#1.base_24|) (+ |v_ULTIMATE.start_ensure_linked_list_is_allocated_~list#1.offset_24| 24) (select (select |#memory_$Pointer$.offset| |v_ULTIMATE.start_ensure_linked_list_is_allocated_~list#1.base_24|) (+ |v_ULTIMATE.start_ensure_linked_list_is_allocated_~list#1.offset_24| 24))))) (= |#memory_int| (store |v_#memory_int_30| |v_ULTIMATE.start_ensure_linked_list_is_allocated_~list#1.base_24| (store (select |v_#memory_int_30| |v_ULTIMATE.start_ensure_linked_list_is_allocated_~list#1.base_24|) (+ |v_ULTIMATE.start_ensure_linked_list_is_allocated_~list#1.offset_24| 24) (select (select |#memory_int| |v_ULTIMATE.start_ensure_linked_list_is_allocated_~list#1.base_24|) (+ |v_ULTIMATE.start_ensure_linked_list_is_allocated_~list#1.offset_24| 24))))))) (<= |__VERIFIER_assert_#in~cond| 1))' at error location [2023-12-02 14:24:51,541 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2023-12-02 14:24:51,541 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-02 14:24:51,542 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 26, 12] total 40 [2023-12-02 14:24:51,542 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1200256884] [2023-12-02 14:24:51,542 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-02 14:24:51,543 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 40 states [2023-12-02 14:24:51,543 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 14:24:51,544 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2023-12-02 14:24:51,545 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=204, Invalid=2605, Unknown=89, NotChecked=1008, Total=3906 [2023-12-02 14:24:51,545 INFO L87 Difference]: Start difference. First operand 125 states and 156 transitions. Second operand has 40 states, 34 states have (on average 2.5) internal successors, (85), 32 states have internal predecessors, (85), 16 states have call successors, (25), 9 states have call predecessors, (25), 12 states have return successors, (25), 15 states have call predecessors, (25), 16 states have call successors, (25) [2023-12-02 14:24:54,037 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 14:24:56,175 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 14:24:57,905 WARN L876 $PredicateComparison]: unable to prove that (let ((.cse33 (+ 16 |c_aws_linked_list_is_valid_#in~list#1.offset|)) (.cse35 (+ |c_aws_linked_list_is_valid_#in~list#1.offset| 8)) (.cse32 (select |c_#memory_$Pointer$.base| |c_aws_linked_list_is_valid_#in~list#1.base|)) (.cse34 (select |c_#memory_$Pointer$.offset| |c_aws_linked_list_is_valid_#in~list#1.base|))) (and (or (exists ((|v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.base_BEFORE_CALL_16| Int)) (and (exists ((|v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.offset_BEFORE_CALL_18| Int)) (let ((.cse1 (+ |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.offset_BEFORE_CALL_18| 16)) (.cse2 (select |c_#memory_$Pointer$.offset| |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.base_BEFORE_CALL_16|)) (.cse0 (select |c_#memory_$Pointer$.base| |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.base_BEFORE_CALL_16|)) (.cse3 (+ |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.offset_BEFORE_CALL_18| 8))) (and (= (select .cse0 .cse1) 0) (= (select .cse2 .cse1) 0) (not (= (select .cse0 |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.offset_BEFORE_CALL_18|) 0)) (= (select .cse2 .cse3) 0) (not (= 0 (select .cse2 (+ |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.offset_BEFORE_CALL_18| 24)))) (= (select .cse0 .cse3) 0)))) (not (= |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.base_BEFORE_CALL_16| 0)))) (exists ((|v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.base_BEFORE_CALL_16| Int)) (and (not (= |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.base_BEFORE_CALL_16| 0)) (exists ((|v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.offset_BEFORE_CALL_18| Int)) (let ((.cse5 (+ |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.offset_BEFORE_CALL_18| 16)) (.cse6 (select |c_#memory_$Pointer$.offset| |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.base_BEFORE_CALL_16|)) (.cse4 (select |c_#memory_$Pointer$.base| |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.base_BEFORE_CALL_16|)) (.cse7 (+ |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.offset_BEFORE_CALL_18| 8))) (and (= (select .cse4 .cse5) 0) (= (select .cse6 .cse5) 0) (not (= (select .cse6 |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.offset_BEFORE_CALL_18|) 0)) (= (select .cse6 .cse7) 0) (not (= 0 (select .cse6 (+ |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.offset_BEFORE_CALL_18| 24)))) (= (select .cse4 .cse7) 0)))))) (exists ((|v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.offset_BEFORE_CALL_18| Int)) (and (exists ((|v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.base_BEFORE_CALL_16| Int)) (let ((.cse9 (+ |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.offset_BEFORE_CALL_18| 16)) (.cse10 (select |c_#memory_$Pointer$.offset| |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.base_BEFORE_CALL_16|)) (.cse8 (select |c_#memory_$Pointer$.base| |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.base_BEFORE_CALL_16|)) (.cse11 (+ |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.offset_BEFORE_CALL_18| 8))) (and (= (select .cse8 .cse9) 0) (= (select .cse10 .cse9) 0) (not (= (select .cse8 |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.offset_BEFORE_CALL_18|) 0)) (not (= (select .cse8 (+ |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.offset_BEFORE_CALL_18| 24)) 0)) (= (select .cse10 .cse11) 0) (= (select .cse8 .cse11) 0)))) (not (= |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.offset_BEFORE_CALL_18| 0)))) (exists ((|v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.offset_BEFORE_CALL_18| Int)) (and (exists ((|v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.base_BEFORE_CALL_16| Int)) (let ((.cse13 (+ |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.offset_BEFORE_CALL_18| 16)) (.cse14 (select |c_#memory_$Pointer$.offset| |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.base_BEFORE_CALL_16|)) (.cse12 (select |c_#memory_$Pointer$.base| |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.base_BEFORE_CALL_16|)) (.cse15 (+ |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.offset_BEFORE_CALL_18| 8))) (and (= (select .cse12 .cse13) 0) (= (select .cse14 .cse13) 0) (not (= (select .cse14 |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.offset_BEFORE_CALL_18|) 0)) (= (select .cse14 .cse15) 0) (not (= 0 (select .cse14 (+ |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.offset_BEFORE_CALL_18| 24)))) (= (select .cse12 .cse15) 0)))) (not (= |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.offset_BEFORE_CALL_18| 0)))) (exists ((|v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.base_BEFORE_CALL_16| Int)) (and (not (= |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.base_BEFORE_CALL_16| 0)) (exists ((|v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.offset_BEFORE_CALL_18| Int)) (let ((.cse17 (+ |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.offset_BEFORE_CALL_18| 16)) (.cse18 (select |c_#memory_$Pointer$.offset| |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.base_BEFORE_CALL_16|)) (.cse16 (select |c_#memory_$Pointer$.base| |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.base_BEFORE_CALL_16|)) (.cse19 (+ |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.offset_BEFORE_CALL_18| 8))) (and (= (select .cse16 .cse17) 0) (= (select .cse18 .cse17) 0) (not (= (select .cse16 |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.offset_BEFORE_CALL_18|) 0)) (not (= (select .cse16 (+ |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.offset_BEFORE_CALL_18| 24)) 0)) (= (select .cse18 .cse19) 0) (= (select .cse16 .cse19) 0)))))) (exists ((|v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.base_BEFORE_CALL_16| Int)) (and (exists ((|v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.offset_BEFORE_CALL_18| Int)) (let ((.cse21 (+ |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.offset_BEFORE_CALL_18| 16)) (.cse22 (select |c_#memory_$Pointer$.offset| |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.base_BEFORE_CALL_16|)) (.cse20 (select |c_#memory_$Pointer$.base| |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.base_BEFORE_CALL_16|)) (.cse23 (+ |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.offset_BEFORE_CALL_18| 8))) (and (= (select .cse20 .cse21) 0) (= (select .cse22 .cse21) 0) (not (= (select .cse20 (+ |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.offset_BEFORE_CALL_18| 24)) 0)) (not (= (select .cse22 |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.offset_BEFORE_CALL_18|) 0)) (= (select .cse22 .cse23) 0) (= (select .cse20 .cse23) 0)))) (not (= |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.base_BEFORE_CALL_16| 0)))) (exists ((|v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.offset_BEFORE_CALL_18| Int)) (and (exists ((|v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.base_BEFORE_CALL_16| Int)) (let ((.cse25 (+ |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.offset_BEFORE_CALL_18| 16)) (.cse26 (select |c_#memory_$Pointer$.offset| |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.base_BEFORE_CALL_16|)) (.cse24 (select |c_#memory_$Pointer$.base| |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.base_BEFORE_CALL_16|)) (.cse27 (+ |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.offset_BEFORE_CALL_18| 8))) (and (= (select .cse24 .cse25) 0) (= (select .cse26 .cse25) 0) (not (= (select .cse24 (+ |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.offset_BEFORE_CALL_18| 24)) 0)) (not (= (select .cse26 |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.offset_BEFORE_CALL_18|) 0)) (= (select .cse26 .cse27) 0) (= (select .cse24 .cse27) 0)))) (not (= |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.offset_BEFORE_CALL_18| 0)))) (exists ((|v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.offset_BEFORE_CALL_18| Int)) (and (exists ((|v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.base_BEFORE_CALL_16| Int)) (let ((.cse29 (+ |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.offset_BEFORE_CALL_18| 16)) (.cse30 (select |c_#memory_$Pointer$.offset| |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.base_BEFORE_CALL_16|)) (.cse28 (select |c_#memory_$Pointer$.base| |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.base_BEFORE_CALL_16|)) (.cse31 (+ |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.offset_BEFORE_CALL_18| 8))) (and (= (select .cse28 .cse29) 0) (= (select .cse30 .cse29) 0) (not (= (select .cse28 |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.offset_BEFORE_CALL_18|) 0)) (= (select .cse30 .cse31) 0) (not (= 0 (select .cse30 (+ |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.offset_BEFORE_CALL_18| 24)))) (= (select .cse28 .cse31) 0)))) (not (= |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.offset_BEFORE_CALL_18| 0))))) (= (select .cse32 .cse33) 0) (= (select .cse34 .cse35) 0) (= (select .cse34 .cse33) 0) (or (exists ((v_DerPreprocessor_91 (Array Int Int)) (|v_ULTIMATE.start_ensure_linked_list_is_allocated_~curr~0#1.offset_42| Int) (v_DerPreprocessor_90 (Array Int Int))) (let ((.cse37 (select v_DerPreprocessor_91 |v_ULTIMATE.start_ensure_linked_list_is_allocated_~curr~0#1.offset_42|))) (let ((.cse38 (select |c_#memory_$Pointer$.base| .cse37))) (let ((.cse36 (select .cse38 24))) (and (not (= .cse36 0)) (<= 2 .cse37) (= .cse38 (store (select (store (store |c_#memory_$Pointer$.base| .cse37 v_DerPreprocessor_90) .cse36 v_DerPreprocessor_91) .cse37) 24 .cse36)) (not (= .cse37 .cse36))))))) (exists ((|v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base_BEFORE_CALL_80| Int)) (let ((.cse39 (select |c_#memory_$Pointer$.base| |v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base_BEFORE_CALL_80|))) (and (exists ((|v_ULTIMATE.start_ensure_linked_list_is_allocated_~curr~0#1.offset_42| Int)) (= (select .cse39 |v_ULTIMATE.start_ensure_linked_list_is_allocated_~curr~0#1.offset_42|) |v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base_BEFORE_CALL_80|)) (<= 2 |v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base_BEFORE_CALL_80|) (= (select .cse39 24) |v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base_BEFORE_CALL_80|))))) (let ((.cse40 (+ |c_aws_linked_list_is_valid_#in~list#1.offset| 24))) (or (not (= (select .cse32 .cse40) 0)) (not (= (select .cse34 .cse40) 0)))) (= (select .cse32 .cse35) 0) (or (not (= |c_aws_linked_list_is_valid_#in~list#1.offset| 0)) (not (= |c_aws_linked_list_is_valid_#in~list#1.base| 0))) (or (not (= (select .cse32 |c_aws_linked_list_is_valid_#in~list#1.offset|) 0)) (not (= (select .cse34 |c_aws_linked_list_is_valid_#in~list#1.offset|) 0))))) is different from true [2023-12-02 14:24:58,295 WARN L876 $PredicateComparison]: unable to prove that (let ((.cse47 (select |c_#memory_$Pointer$.offset| |c_aws_linked_list_is_valid_#in~list#1.base|)) (.cse48 (+ |c_aws_linked_list_is_valid_#in~list#1.offset| 8)) (.cse46 (select |c_#memory_$Pointer$.base| |c_aws_linked_list_is_valid_#in~list#1.base|)) (.cse50 (+ 16 |c_aws_linked_list_is_valid_#in~list#1.offset|))) (let ((.cse32 (= (select .cse46 .cse50) 0)) (.cse33 (= (select .cse47 .cse48) 0)) (.cse34 (= (select .cse47 .cse50) 0)) (.cse39 (let ((.cse49 (+ |c_aws_linked_list_is_valid_#in~list#1.offset| 24))) (or (not (= (select .cse46 .cse49) 0)) (not (= (select .cse47 .cse49) 0))))) (.cse43 (= (select .cse46 .cse48) 0)) (.cse44 (or (not (= |c_aws_linked_list_is_valid_#in~list#1.offset| 0)) (not (= |c_aws_linked_list_is_valid_#in~list#1.base| 0)))) (.cse45 (or (not (= (select .cse46 |c_aws_linked_list_is_valid_#in~list#1.offset|) 0)) (not (= (select .cse47 |c_aws_linked_list_is_valid_#in~list#1.offset|) 0))))) (let ((.cse41 (select (select |c_#memory_$Pointer$.offset| |c_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.base|) |c_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.offset|)) (.cse42 (+ |c_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~list#1.offset| 16)) (.cse40 (and .cse32 .cse33 .cse34 .cse39 .cse43 .cse44 .cse45))) (and (= |c_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~list#1.offset| |c_aws_linked_list_is_valid_#in~list#1.offset|) (or (exists ((|v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.base_BEFORE_CALL_16| Int)) (and (exists ((|v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.offset_BEFORE_CALL_18| Int)) (let ((.cse1 (+ |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.offset_BEFORE_CALL_18| 16)) (.cse2 (select |c_#memory_$Pointer$.offset| |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.base_BEFORE_CALL_16|)) (.cse0 (select |c_#memory_$Pointer$.base| |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.base_BEFORE_CALL_16|)) (.cse3 (+ |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.offset_BEFORE_CALL_18| 8))) (and (= (select .cse0 .cse1) 0) (= (select .cse2 .cse1) 0) (not (= (select .cse0 |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.offset_BEFORE_CALL_18|) 0)) (= (select .cse2 .cse3) 0) (not (= 0 (select .cse2 (+ |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.offset_BEFORE_CALL_18| 24)))) (= (select .cse0 .cse3) 0)))) (not (= |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.base_BEFORE_CALL_16| 0)))) (exists ((|v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.base_BEFORE_CALL_16| Int)) (and (not (= |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.base_BEFORE_CALL_16| 0)) (exists ((|v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.offset_BEFORE_CALL_18| Int)) (let ((.cse5 (+ |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.offset_BEFORE_CALL_18| 16)) (.cse6 (select |c_#memory_$Pointer$.offset| |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.base_BEFORE_CALL_16|)) (.cse4 (select |c_#memory_$Pointer$.base| |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.base_BEFORE_CALL_16|)) (.cse7 (+ |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.offset_BEFORE_CALL_18| 8))) (and (= (select .cse4 .cse5) 0) (= (select .cse6 .cse5) 0) (not (= (select .cse6 |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.offset_BEFORE_CALL_18|) 0)) (= (select .cse6 .cse7) 0) (not (= 0 (select .cse6 (+ |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.offset_BEFORE_CALL_18| 24)))) (= (select .cse4 .cse7) 0)))))) (exists ((|v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.offset_BEFORE_CALL_18| Int)) (and (exists ((|v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.base_BEFORE_CALL_16| Int)) (let ((.cse9 (+ |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.offset_BEFORE_CALL_18| 16)) (.cse10 (select |c_#memory_$Pointer$.offset| |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.base_BEFORE_CALL_16|)) (.cse8 (select |c_#memory_$Pointer$.base| |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.base_BEFORE_CALL_16|)) (.cse11 (+ |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.offset_BEFORE_CALL_18| 8))) (and (= (select .cse8 .cse9) 0) (= (select .cse10 .cse9) 0) (not (= (select .cse8 |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.offset_BEFORE_CALL_18|) 0)) (not (= (select .cse8 (+ |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.offset_BEFORE_CALL_18| 24)) 0)) (= (select .cse10 .cse11) 0) (= (select .cse8 .cse11) 0)))) (not (= |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.offset_BEFORE_CALL_18| 0)))) (exists ((|v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.offset_BEFORE_CALL_18| Int)) (and (exists ((|v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.base_BEFORE_CALL_16| Int)) (let ((.cse13 (+ |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.offset_BEFORE_CALL_18| 16)) (.cse14 (select |c_#memory_$Pointer$.offset| |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.base_BEFORE_CALL_16|)) (.cse12 (select |c_#memory_$Pointer$.base| |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.base_BEFORE_CALL_16|)) (.cse15 (+ |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.offset_BEFORE_CALL_18| 8))) (and (= (select .cse12 .cse13) 0) (= (select .cse14 .cse13) 0) (not (= (select .cse14 |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.offset_BEFORE_CALL_18|) 0)) (= (select .cse14 .cse15) 0) (not (= 0 (select .cse14 (+ |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.offset_BEFORE_CALL_18| 24)))) (= (select .cse12 .cse15) 0)))) (not (= |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.offset_BEFORE_CALL_18| 0)))) (exists ((|v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.base_BEFORE_CALL_16| Int)) (and (not (= |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.base_BEFORE_CALL_16| 0)) (exists ((|v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.offset_BEFORE_CALL_18| Int)) (let ((.cse17 (+ |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.offset_BEFORE_CALL_18| 16)) (.cse18 (select |c_#memory_$Pointer$.offset| |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.base_BEFORE_CALL_16|)) (.cse16 (select |c_#memory_$Pointer$.base| |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.base_BEFORE_CALL_16|)) (.cse19 (+ |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.offset_BEFORE_CALL_18| 8))) (and (= (select .cse16 .cse17) 0) (= (select .cse18 .cse17) 0) (not (= (select .cse16 |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.offset_BEFORE_CALL_18|) 0)) (not (= (select .cse16 (+ |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.offset_BEFORE_CALL_18| 24)) 0)) (= (select .cse18 .cse19) 0) (= (select .cse16 .cse19) 0)))))) (exists ((|v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.base_BEFORE_CALL_16| Int)) (and (exists ((|v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.offset_BEFORE_CALL_18| Int)) (let ((.cse21 (+ |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.offset_BEFORE_CALL_18| 16)) (.cse22 (select |c_#memory_$Pointer$.offset| |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.base_BEFORE_CALL_16|)) (.cse20 (select |c_#memory_$Pointer$.base| |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.base_BEFORE_CALL_16|)) (.cse23 (+ |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.offset_BEFORE_CALL_18| 8))) (and (= (select .cse20 .cse21) 0) (= (select .cse22 .cse21) 0) (not (= (select .cse20 (+ |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.offset_BEFORE_CALL_18| 24)) 0)) (not (= (select .cse22 |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.offset_BEFORE_CALL_18|) 0)) (= (select .cse22 .cse23) 0) (= (select .cse20 .cse23) 0)))) (not (= |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.base_BEFORE_CALL_16| 0)))) (exists ((|v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.offset_BEFORE_CALL_18| Int)) (and (exists ((|v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.base_BEFORE_CALL_16| Int)) (let ((.cse25 (+ |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.offset_BEFORE_CALL_18| 16)) (.cse26 (select |c_#memory_$Pointer$.offset| |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.base_BEFORE_CALL_16|)) (.cse24 (select |c_#memory_$Pointer$.base| |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.base_BEFORE_CALL_16|)) (.cse27 (+ |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.offset_BEFORE_CALL_18| 8))) (and (= (select .cse24 .cse25) 0) (= (select .cse26 .cse25) 0) (not (= (select .cse24 (+ |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.offset_BEFORE_CALL_18| 24)) 0)) (not (= (select .cse26 |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.offset_BEFORE_CALL_18|) 0)) (= (select .cse26 .cse27) 0) (= (select .cse24 .cse27) 0)))) (not (= |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.offset_BEFORE_CALL_18| 0)))) (exists ((|v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.offset_BEFORE_CALL_18| Int)) (and (exists ((|v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.base_BEFORE_CALL_16| Int)) (let ((.cse29 (+ |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.offset_BEFORE_CALL_18| 16)) (.cse30 (select |c_#memory_$Pointer$.offset| |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.base_BEFORE_CALL_16|)) (.cse28 (select |c_#memory_$Pointer$.base| |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.base_BEFORE_CALL_16|)) (.cse31 (+ |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.offset_BEFORE_CALL_18| 8))) (and (= (select .cse28 .cse29) 0) (= (select .cse30 .cse29) 0) (not (= (select .cse28 |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.offset_BEFORE_CALL_18|) 0)) (= (select .cse30 .cse31) 0) (not (= 0 (select .cse30 (+ |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.offset_BEFORE_CALL_18| 24)))) (= (select .cse28 .cse31) 0)))) (not (= |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.offset_BEFORE_CALL_18| 0))))) .cse32 .cse33 .cse34 (or (exists ((v_DerPreprocessor_91 (Array Int Int)) (|v_ULTIMATE.start_ensure_linked_list_is_allocated_~curr~0#1.offset_42| Int) (v_DerPreprocessor_90 (Array Int Int))) (let ((.cse36 (select v_DerPreprocessor_91 |v_ULTIMATE.start_ensure_linked_list_is_allocated_~curr~0#1.offset_42|))) (let ((.cse37 (select |c_#memory_$Pointer$.base| .cse36))) (let ((.cse35 (select .cse37 24))) (and (not (= .cse35 0)) (<= 2 .cse36) (= .cse37 (store (select (store (store |c_#memory_$Pointer$.base| .cse36 v_DerPreprocessor_90) .cse35 v_DerPreprocessor_91) .cse36) 24 .cse35)) (not (= .cse36 .cse35))))))) (exists ((|v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base_BEFORE_CALL_80| Int)) (let ((.cse38 (select |c_#memory_$Pointer$.base| |v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base_BEFORE_CALL_80|))) (and (exists ((|v_ULTIMATE.start_ensure_linked_list_is_allocated_~curr~0#1.offset_42| Int)) (= (select .cse38 |v_ULTIMATE.start_ensure_linked_list_is_allocated_~curr~0#1.offset_42|) |v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base_BEFORE_CALL_80|)) (<= 2 |v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base_BEFORE_CALL_80|) (= (select .cse38 24) |v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base_BEFORE_CALL_80|))))) .cse39 (or .cse40 (not (= (select (select |c_#memory_$Pointer$.offset| (select (select |c_#memory_$Pointer$.base| |c_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.base|) |c_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.offset|)) .cse41) .cse42))) .cse43 (or (not (= .cse41 .cse42)) .cse40) (or (not (= |c_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.offset| .cse42)) .cse40) .cse44 .cse45 (= |c_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.offset| (select (select |c_#memory_$Pointer$.offset| (select .cse46 |c_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~list#1.offset|)) (select .cse47 |c_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~list#1.offset|))))))) is different from true [2023-12-02 14:25:00,542 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 14:25:20,579 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.31s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 14:25:28,427 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 14:25:33,318 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 14:25:37,464 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 14:25:39,356 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.67s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 14:25:47,479 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 14:25:52,552 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 14:25:55,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 14:25:55,171 INFO L93 Difference]: Finished difference Result 476 states and 646 transitions. [2023-12-02 14:25:55,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states. [2023-12-02 14:25:55,172 INFO L78 Accepts]: Start accepts. Automaton has has 40 states, 34 states have (on average 2.5) internal successors, (85), 32 states have internal predecessors, (85), 16 states have call successors, (25), 9 states have call predecessors, (25), 12 states have return successors, (25), 15 states have call predecessors, (25), 16 states have call successors, (25) Word has length 63 [2023-12-02 14:25:55,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 14:25:55,175 INFO L225 Difference]: With dead ends: 476 [2023-12-02 14:25:55,176 INFO L226 Difference]: Without dead ends: 380 [2023-12-02 14:25:55,180 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 240 GetRequests, 137 SyntacticMatches, 4 SemanticMatches, 99 ConstructedPredicates, 11 IntricatePredicates, 0 DeprecatedPredicates, 2123 ImplicationChecksByTransitivity, 47.4s TimeCoverageRelationStatistics Valid=556, Invalid=7353, Unknown=145, NotChecked=2046, Total=10100 [2023-12-02 14:25:55,181 INFO L413 NwaCegarLoop]: 62 mSDtfsCounter, 137 mSDsluCounter, 571 mSDsCounter, 0 mSdLazyCounter, 1603 mSolverCounterSat, 44 mSolverCounterUnsat, 306 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 44.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 158 SdHoareTripleChecker+Valid, 633 SdHoareTripleChecker+Invalid, 4008 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 1603 IncrementalHoareTripleChecker+Invalid, 306 IncrementalHoareTripleChecker+Unknown, 2055 IncrementalHoareTripleChecker+Unchecked, 44.6s IncrementalHoareTripleChecker+Time [2023-12-02 14:25:55,181 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [158 Valid, 633 Invalid, 4008 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 1603 Invalid, 306 Unknown, 2055 Unchecked, 44.6s Time] [2023-12-02 14:25:55,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 380 states. [2023-12-02 14:25:55,334 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 380 to 321. [2023-12-02 14:25:55,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 321 states, 215 states have (on average 1.2465116279069768) internal successors, (268), 227 states have internal predecessors, (268), 71 states have call successors, (71), 24 states have call predecessors, (71), 34 states have return successors, (97), 69 states have call predecessors, (97), 69 states have call successors, (97) [2023-12-02 14:25:55,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 321 states to 321 states and 436 transitions. [2023-12-02 14:25:55,339 INFO L78 Accepts]: Start accepts. Automaton has 321 states and 436 transitions. Word has length 63 [2023-12-02 14:25:55,340 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 14:25:55,340 INFO L495 AbstractCegarLoop]: Abstraction has 321 states and 436 transitions. [2023-12-02 14:25:55,340 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 40 states, 34 states have (on average 2.5) internal successors, (85), 32 states have internal predecessors, (85), 16 states have call successors, (25), 9 states have call predecessors, (25), 12 states have return successors, (25), 15 states have call predecessors, (25), 16 states have call successors, (25) [2023-12-02 14:25:55,341 INFO L276 IsEmpty]: Start isEmpty. Operand 321 states and 436 transitions. [2023-12-02 14:25:55,342 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2023-12-02 14:25:55,343 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 14:25:55,343 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 14:25:55,350 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c54d012-2dc3-49ba-a13d-c90e65ffec40/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2023-12-02 14:25:55,543 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c54d012-2dc3-49ba-a13d-c90e65ffec40/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 14:25:55,544 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 14:25:55,544 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 14:25:55,544 INFO L85 PathProgramCache]: Analyzing trace with hash -4804594, now seen corresponding path program 1 times [2023-12-02 14:25:55,544 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 14:25:55,544 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [292327223] [2023-12-02 14:25:55,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 14:25:55,545 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 14:25:55,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 14:25:56,323 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2023-12-02 14:25:56,324 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 14:25:56,324 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [292327223] [2023-12-02 14:25:56,324 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [292327223] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 14:25:56,324 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [398694444] [2023-12-02 14:25:56,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 14:25:56,324 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 14:25:56,324 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c54d012-2dc3-49ba-a13d-c90e65ffec40/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 14:25:56,325 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c54d012-2dc3-49ba-a13d-c90e65ffec40/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 14:25:56,327 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c54d012-2dc3-49ba-a13d-c90e65ffec40/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-12-02 14:25:56,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 14:25:56,565 INFO L262 TraceCheckSpWp]: Trace formula consists of 399 conjuncts, 31 conjunts are in the unsatisfiable core [2023-12-02 14:25:56,568 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 14:25:56,729 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 37 proven. 4 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-12-02 14:25:56,729 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 14:25:56,943 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 14 proven. 8 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2023-12-02 14:25:56,944 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [398694444] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 14:25:56,944 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1642882442] [2023-12-02 14:25:56,947 INFO L159 IcfgInterpreter]: Started Sifa with 35 locations of interest [2023-12-02 14:25:56,947 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 14:25:56,947 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-12-02 14:25:56,947 INFO L176 IcfgInterpreter]: Starting interpretation [2023-12-02 14:25:56,948 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-12-02 14:25:58,498 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 185 for LOIs [2023-12-02 14:25:58,595 INFO L197 IcfgInterpreter]: Interpreting procedure aws_linked_list_is_valid with input of size 17 for LOIs [2023-12-02 14:25:58,893 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 15 for LOIs [2023-12-02 14:25:58,895 INFO L197 IcfgInterpreter]: Interpreting procedure nondet_uint64_t with input of size 94 for LOIs [2023-12-02 14:25:58,908 INFO L197 IcfgInterpreter]: Interpreting procedure aws_linked_list_node_next_is_valid with input of size 25 for LOIs [2023-12-02 14:25:58,947 INFO L180 IcfgInterpreter]: Interpretation finished [2023-12-02 14:26:14,934 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '7044#(and (<= 0 |__VERIFIER_assert_#in~cond|) (<= 1 |#StackHeapBarrier|) (= |~#s_can_fail_allocator_static~0.base| 4) (= (mod __VERIFIER_assert_~cond 256) 0) (= |~#s_can_fail_allocator_static~0.offset| 0) (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond) (exists ((|v_ULTIMATE.start_aws_linked_list_begin_harness_#t~ret683#1_33| Int)) (and (<= 0 |v_ULTIMATE.start_aws_linked_list_begin_harness_#t~ret683#1_33|) (<= |v_ULTIMATE.start_aws_linked_list_begin_harness_#t~ret683#1_33| 1) (not (= (mod |v_ULTIMATE.start_aws_linked_list_begin_harness_#t~ret683#1_33| 256) 0)))) (exists ((|v_ULTIMATE.start_ensure_linked_list_is_allocated_~length~1#1_23| Int)) (<= (mod |v_ULTIMATE.start_ensure_linked_list_is_allocated_~length~1#1_23| 18446744073709551616) 0)) (exists ((|v_ULTIMATE.start_aws_linked_list_begin_#t~ret328#1_33| Int)) (and (<= 0 |v_ULTIMATE.start_aws_linked_list_begin_#t~ret328#1_33|) (not (= (mod |v_ULTIMATE.start_aws_linked_list_begin_#t~ret328#1_33| 256) 0)) (<= |v_ULTIMATE.start_aws_linked_list_begin_#t~ret328#1_33| 1))) (= ~tl_last_error~0 0) (exists ((|v_#memory_$Pointer$.offset_104| (Array Int (Array Int Int))) (|v_#memory_int_30| (Array Int (Array Int Int))) (|v_#memory_real_4| (Array Int (Array Int Real))) (|v_#memory_real_27| (Array Int (Array Int Real))) (|v_ULTIMATE.start_aws_linked_list_begin_#in~list#1.base_BEFORE_CALL_27| Int) (|v_#length_30| (Array Int Int)) (|v_#memory_real_108| (Array Int (Array Int Real))) (|v_#memory_int_5| (Array Int (Array Int Int))) (|v_#memory_real_107| (Array Int (Array Int Real))) (|v_#memory_int_110| (Array Int (Array Int Int))) (|v_#memory_int_111| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.base_100| (Array Int (Array Int Int))) (|v_#valid_36| (Array Int Int))) (and (= (store |v_#memory_real_107| |v_ULTIMATE.start_aws_linked_list_begin_#in~list#1.base_BEFORE_CALL_27| (store (select |v_#memory_real_107| |v_ULTIMATE.start_aws_linked_list_begin_#in~list#1.base_BEFORE_CALL_27|) 8 (select (select |v_#memory_real_4| |v_ULTIMATE.start_aws_linked_list_begin_#in~list#1.base_BEFORE_CALL_27|) 8))) |v_#memory_real_4|) (= 48 (select (select |v_#memory_int_110| 1) 0)) (= (select |v_#valid_36| 1) 1) (= (select |v_#valid_36| 2) 1) (= (select |v_#valid_36| 0) 0) (= |v_#memory_int_111| (store |v_#memory_int_5| |v_ULTIMATE.start_aws_linked_list_begin_#in~list#1.base_BEFORE_CALL_27| (store (select |v_#memory_int_5| |v_ULTIMATE.start_aws_linked_list_begin_#in~list#1.base_BEFORE_CALL_27|) 16 (select (select |v_#memory_int_111| |v_ULTIMATE.start_aws_linked_list_begin_#in~list#1.base_BEFORE_CALL_27|) 16)))) (= |#memory_$Pointer$.base| (store |v_#memory_$Pointer$.base_100| |v_ULTIMATE.start_aws_linked_list_begin_#in~list#1.base_BEFORE_CALL_27| (store (store (store (store (select |v_#memory_$Pointer$.base_100| |v_ULTIMATE.start_aws_linked_list_begin_#in~list#1.base_BEFORE_CALL_27|) 8 0) 16 0) 0 |v_ULTIMATE.start_aws_linked_list_begin_#in~list#1.base_BEFORE_CALL_27|) 24 |v_ULTIMATE.start_aws_linked_list_begin_#in~list#1.base_BEFORE_CALL_27|))) (= |v_#memory_int_30| (store |v_#memory_int_111| |v_ULTIMATE.start_aws_linked_list_begin_#in~list#1.base_BEFORE_CALL_27| (store (select |v_#memory_int_111| |v_ULTIMATE.start_aws_linked_list_begin_#in~list#1.base_BEFORE_CALL_27|) 0 (select (select |v_#memory_int_30| |v_ULTIMATE.start_aws_linked_list_begin_#in~list#1.base_BEFORE_CALL_27|) 0)))) (= (store |v_#memory_real_108| |v_ULTIMATE.start_aws_linked_list_begin_#in~list#1.base_BEFORE_CALL_27| (store (select |v_#memory_real_108| |v_ULTIMATE.start_aws_linked_list_begin_#in~list#1.base_BEFORE_CALL_27|) 0 (select (select |v_#memory_real_27| |v_ULTIMATE.start_aws_linked_list_begin_#in~list#1.base_BEFORE_CALL_27|) 0))) |v_#memory_real_27|) (= |#memory_real| (store |v_#memory_real_27| |v_ULTIMATE.start_aws_linked_list_begin_#in~list#1.base_BEFORE_CALL_27| (store (select |v_#memory_real_27| |v_ULTIMATE.start_aws_linked_list_begin_#in~list#1.base_BEFORE_CALL_27|) 24 (select (select |#memory_real| |v_ULTIMATE.start_aws_linked_list_begin_#in~list#1.base_BEFORE_CALL_27|) 24)))) (= (select |v_#length_30| 3) 12) (= (select (select |v_#memory_$Pointer$.offset_104| 4) 32) 0) (= |#memory_$Pointer$.offset| (store |v_#memory_$Pointer$.offset_104| |v_ULTIMATE.start_aws_linked_list_begin_#in~list#1.base_BEFORE_CALL_27| (store (store (store (store (select |v_#memory_$Pointer$.offset_104| |v_ULTIMATE.start_aws_linked_list_begin_#in~list#1.base_BEFORE_CALL_27|) 8 0) 16 0) 0 16) 24 0))) (= (select |v_#length_30| 1) 2) (= (select |v_#valid_36| |v_ULTIMATE.start_aws_linked_list_begin_#in~list#1.base_BEFORE_CALL_27|) 0) (= |#funAddr~s_can_fail_realloc_allocator.base| (select (select |v_#memory_$Pointer$.base_100| 4) 16)) (= (select |v_#valid_36| 3) 1) (= (select (select |v_#memory_$Pointer$.offset_104| 4) 8) |#funAddr~s_can_fail_free_allocator.offset|) (= |#funAddr~s_can_fail_malloc_allocator.offset| (select (select |v_#memory_$Pointer$.offset_104| 4) 0)) (= (select (select |v_#memory_$Pointer$.base_100| 4) 8) |#funAddr~s_can_fail_free_allocator.base|) (= 40 (select |v_#length_30| 4)) (<= (+ |#StackHeapBarrier| 1) |v_ULTIMATE.start_aws_linked_list_begin_#in~list#1.base_BEFORE_CALL_27|) (= (select (select |v_#memory_$Pointer$.base_100| 4) 0) |#funAddr~s_can_fail_malloc_allocator.base|) (= |#funAddr~s_can_fail_realloc_allocator.offset| (select (select |v_#memory_$Pointer$.offset_104| 4) 16)) (= |#funAddr~s_can_fail_calloc_allocator.offset| (select (select |v_#memory_$Pointer$.offset_104| 4) 24)) (= |#funAddr~s_can_fail_calloc_allocator.base| (select (select |v_#memory_$Pointer$.base_100| 4) 24)) (= (store |v_#valid_36| |v_ULTIMATE.start_aws_linked_list_begin_#in~list#1.base_BEFORE_CALL_27| 1) |#valid|) (= 0 (select (select |v_#memory_$Pointer$.base_100| 4) 32)) (= (select |v_#valid_36| 4) 1) (= 0 (select (select |v_#memory_int_110| 1) 1)) (= |#length| (store |v_#length_30| |v_ULTIMATE.start_aws_linked_list_begin_#in~list#1.base_BEFORE_CALL_27| 32)) (= 32 (select |v_#length_30| 2)) (= (store |v_#memory_int_110| |v_ULTIMATE.start_aws_linked_list_begin_#in~list#1.base_BEFORE_CALL_27| (store (select |v_#memory_int_110| |v_ULTIMATE.start_aws_linked_list_begin_#in~list#1.base_BEFORE_CALL_27|) 8 (select (select |v_#memory_int_5| |v_ULTIMATE.start_aws_linked_list_begin_#in~list#1.base_BEFORE_CALL_27|) 8))) |v_#memory_int_5|) (= |v_#memory_real_108| (store |v_#memory_real_4| |v_ULTIMATE.start_aws_linked_list_begin_#in~list#1.base_BEFORE_CALL_27| (store (select |v_#memory_real_4| |v_ULTIMATE.start_aws_linked_list_begin_#in~list#1.base_BEFORE_CALL_27|) 16 (select (select |v_#memory_real_108| |v_ULTIMATE.start_aws_linked_list_begin_#in~list#1.base_BEFORE_CALL_27|) 16)))) (= |#memory_int| (store |v_#memory_int_30| |v_ULTIMATE.start_aws_linked_list_begin_#in~list#1.base_BEFORE_CALL_27| (store (select |v_#memory_int_30| |v_ULTIMATE.start_aws_linked_list_begin_#in~list#1.base_BEFORE_CALL_27|) 24 (select (select |#memory_int| |v_ULTIMATE.start_aws_linked_list_begin_#in~list#1.base_BEFORE_CALL_27|) 24)))))) (<= |__VERIFIER_assert_#in~cond| 1))' at error location [2023-12-02 14:26:14,935 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2023-12-02 14:26:14,935 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-02 14:26:14,935 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 11, 7] total 26 [2023-12-02 14:26:14,935 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1565267834] [2023-12-02 14:26:14,935 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-02 14:26:14,936 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-12-02 14:26:14,936 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 14:26:14,937 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-12-02 14:26:14,938 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=243, Invalid=2611, Unknown=8, NotChecked=0, Total=2862 [2023-12-02 14:26:14,938 INFO L87 Difference]: Start difference. First operand 321 states and 436 transitions. Second operand has 26 states, 21 states have (on average 3.6666666666666665) internal successors, (77), 22 states have internal predecessors, (77), 12 states have call successors, (23), 2 states have call predecessors, (23), 8 states have return successors, (24), 11 states have call predecessors, (24), 12 states have call successors, (24) [2023-12-02 14:26:17,248 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 14:26:17,248 INFO L93 Difference]: Finished difference Result 595 states and 833 transitions. [2023-12-02 14:26:17,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2023-12-02 14:26:17,249 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 21 states have (on average 3.6666666666666665) internal successors, (77), 22 states have internal predecessors, (77), 12 states have call successors, (23), 2 states have call predecessors, (23), 8 states have return successors, (24), 11 states have call predecessors, (24), 12 states have call successors, (24) Word has length 66 [2023-12-02 14:26:17,249 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 14:26:17,253 INFO L225 Difference]: With dead ends: 595 [2023-12-02 14:26:17,253 INFO L226 Difference]: Without dead ends: 423 [2023-12-02 14:26:17,256 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 250 GetRequests, 161 SyntacticMatches, 2 SemanticMatches, 87 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 1925 ImplicationChecksByTransitivity, 17.6s TimeCoverageRelationStatistics Valid=642, Invalid=7182, Unknown=8, NotChecked=0, Total=7832 [2023-12-02 14:26:17,257 INFO L413 NwaCegarLoop]: 51 mSDtfsCounter, 114 mSDsluCounter, 839 mSDsCounter, 0 mSdLazyCounter, 1259 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 132 SdHoareTripleChecker+Valid, 890 SdHoareTripleChecker+Invalid, 1305 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 1259 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-02 14:26:17,257 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [132 Valid, 890 Invalid, 1305 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 1259 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-02 14:26:17,258 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 423 states. [2023-12-02 14:26:17,401 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 423 to 370. [2023-12-02 14:26:17,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 370 states, 249 states have (on average 1.216867469879518) internal successors, (303), 264 states have internal predecessors, (303), 82 states have call successors, (82), 25 states have call predecessors, (82), 38 states have return successors, (121), 80 states have call predecessors, (121), 80 states have call successors, (121) [2023-12-02 14:26:17,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 370 states to 370 states and 506 transitions. [2023-12-02 14:26:17,404 INFO L78 Accepts]: Start accepts. Automaton has 370 states and 506 transitions. Word has length 66 [2023-12-02 14:26:17,405 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 14:26:17,405 INFO L495 AbstractCegarLoop]: Abstraction has 370 states and 506 transitions. [2023-12-02 14:26:17,405 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 21 states have (on average 3.6666666666666665) internal successors, (77), 22 states have internal predecessors, (77), 12 states have call successors, (23), 2 states have call predecessors, (23), 8 states have return successors, (24), 11 states have call predecessors, (24), 12 states have call successors, (24) [2023-12-02 14:26:17,405 INFO L276 IsEmpty]: Start isEmpty. Operand 370 states and 506 transitions. [2023-12-02 14:26:17,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2023-12-02 14:26:17,407 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 14:26:17,407 INFO L195 NwaCegarLoop]: trace histogram [5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1] [2023-12-02 14:26:17,412 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c54d012-2dc3-49ba-a13d-c90e65ffec40/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2023-12-02 14:26:17,607 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c54d012-2dc3-49ba-a13d-c90e65ffec40/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 14:26:17,608 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 14:26:17,608 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 14:26:17,608 INFO L85 PathProgramCache]: Analyzing trace with hash -1168071950, now seen corresponding path program 1 times [2023-12-02 14:26:17,608 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 14:26:17,609 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [623285482] [2023-12-02 14:26:17,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 14:26:17,609 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 14:26:17,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 14:26:19,608 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 13 proven. 27 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2023-12-02 14:26:19,609 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 14:26:19,609 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [623285482] [2023-12-02 14:26:19,609 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [623285482] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 14:26:19,609 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1854144677] [2023-12-02 14:26:19,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 14:26:19,609 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 14:26:19,609 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c54d012-2dc3-49ba-a13d-c90e65ffec40/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 14:26:19,610 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c54d012-2dc3-49ba-a13d-c90e65ffec40/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 14:26:19,613 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c54d012-2dc3-49ba-a13d-c90e65ffec40/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2023-12-02 14:26:19,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 14:26:19,898 INFO L262 TraceCheckSpWp]: Trace formula consists of 402 conjuncts, 129 conjunts are in the unsatisfiable core [2023-12-02 14:26:19,905 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 14:26:19,972 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-12-02 14:26:19,976 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-12-02 14:26:23,573 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 24 proven. 33 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 14:26:23,573 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 14:27:23,226 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 31 proven. 12 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-12-02 14:27:23,226 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1854144677] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 14:27:23,226 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1173323329] [2023-12-02 14:27:23,229 INFO L159 IcfgInterpreter]: Started Sifa with 35 locations of interest [2023-12-02 14:27:23,229 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 14:27:23,230 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-12-02 14:27:23,230 INFO L176 IcfgInterpreter]: Starting interpretation [2023-12-02 14:27:23,230 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-12-02 14:27:26,591 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 284 for LOIs [2023-12-02 14:27:27,153 INFO L197 IcfgInterpreter]: Interpreting procedure aws_linked_list_is_valid with input of size 17 for LOIs [2023-12-02 14:27:27,549 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 12 for LOIs [2023-12-02 14:27:27,556 INFO L197 IcfgInterpreter]: Interpreting procedure nondet_uint64_t with input of size 94 for LOIs [2023-12-02 14:27:27,576 INFO L197 IcfgInterpreter]: Interpreting procedure aws_linked_list_node_next_is_valid with input of size 25 for LOIs [2023-12-02 14:27:27,617 INFO L180 IcfgInterpreter]: Interpretation finished [2023-12-02 14:27:34,397 WARN L293 SmtUtils]: Spent 5.37s on a formula simplification. DAG size of input: 288 DAG size of output: 241 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 14:28:14,643 WARN L293 SmtUtils]: Spent 5.98s on a formula simplification. DAG size of input: 266 DAG size of output: 241 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 14:28:21,665 WARN L293 SmtUtils]: Spent 5.05s on a formula simplification. DAG size of input: 269 DAG size of output: 226 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 14:28:28,835 WARN L293 SmtUtils]: Spent 5.06s on a formula simplification. DAG size of input: 277 DAG size of output: 234 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 14:28:38,847 WARN L293 SmtUtils]: Spent 6.92s on a formula simplification. DAG size of input: 288 DAG size of output: 249 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 14:28:48,082 WARN L293 SmtUtils]: Spent 6.74s on a formula simplification. DAG size of input: 284 DAG size of output: 246 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 14:28:57,870 WARN L293 SmtUtils]: Spent 6.63s on a formula simplification. DAG size of input: 286 DAG size of output: 253 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 14:28:57,872 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '8919#(and (<= 1 |#StackHeapBarrier|) (= |~#s_can_fail_allocator_static~0.base| 4) (= |~#s_can_fail_allocator_static~0.offset| 0) (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond) (exists ((|v_ULTIMATE.start_aws_linked_list_begin_#in~list#1.base_BEFORE_CALL_37| Int) (|v_ULTIMATE.start_aws_linked_list_begin_~list#1.base_BEFORE_CALL_55| Int) (|v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base_BEFORE_CALL_144| Int) (|v_ULTIMATE.start_aws_linked_list_begin_~rval~0#1.offset_BEFORE_CALL_15| Int) (|v_ULTIMATE.start_aws_linked_list_begin_~rval~0#1.base_BEFORE_CALL_15| Int)) (or (and (exists ((|v_#memory_real_4| (Array Int (Array Int Real))) (|v_#memory_real_27| (Array Int (Array Int Real))) (|v_#memory_real_113| (Array Int (Array Int Real))) (|v_#memory_real_114| (Array Int (Array Int Real)))) (and (= (store |v_#memory_real_4| |v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base_BEFORE_CALL_144| (store (select |v_#memory_real_4| |v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base_BEFORE_CALL_144|) 16 (select (select |v_#memory_real_114| |v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base_BEFORE_CALL_144|) 16))) |v_#memory_real_114|) (= |#memory_real| (store |v_#memory_real_27| |v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base_BEFORE_CALL_144| (store (select |v_#memory_real_27| |v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base_BEFORE_CALL_144|) 24 (select (select |#memory_real| |v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base_BEFORE_CALL_144|) 24)))) (= (store |v_#memory_real_113| |v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base_BEFORE_CALL_144| (store (select |v_#memory_real_113| |v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base_BEFORE_CALL_144|) 8 (select (select |v_#memory_real_4| |v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base_BEFORE_CALL_144|) 8))) |v_#memory_real_4|) (= |v_#memory_real_27| (store |v_#memory_real_114| |v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base_BEFORE_CALL_144| (store (select |v_#memory_real_114| |v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base_BEFORE_CALL_144|) 0 (select (select |v_#memory_real_27| |v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base_BEFORE_CALL_144|) 0)))))) (exists ((|v_#memory_$Pointer$.base_115| (Array Int (Array Int Int)))) (and (= (select (select |v_#memory_$Pointer$.base_115| 4) 8) |#funAddr~s_can_fail_free_allocator.base|) (= (select (select |v_#memory_$Pointer$.base_115| 4) 0) |#funAddr~s_can_fail_malloc_allocator.base|) (= |#funAddr~s_can_fail_realloc_allocator.base| (select (select |v_#memory_$Pointer$.base_115| 4) 16)) (= (store |v_#memory_$Pointer$.base_115| |v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base_BEFORE_CALL_144| (store (store (store (store (select |v_#memory_$Pointer$.base_115| |v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base_BEFORE_CALL_144|) 8 0) 16 0) 0 |v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base_BEFORE_CALL_144|) 24 |v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base_BEFORE_CALL_144|)) |#memory_$Pointer$.base|) (= |#funAddr~s_can_fail_calloc_allocator.base| (select (select |v_#memory_$Pointer$.base_115| 4) 24)) (= (select (select |v_#memory_$Pointer$.base_115| 4) 32) 0))) (exists ((|v_#valid_37| (Array Int Int))) (and (= (select |v_#valid_37| |v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base_BEFORE_CALL_144|) 0) (= (select |v_#valid_37| 2) 1) (= (select |v_#valid_37| 3) 1) (= (select |v_#valid_37| 4) 1) (= (select |v_#valid_37| 1) 1) (= (select |v_#valid_37| 0) 0) (= |#valid| (store |v_#valid_37| |v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base_BEFORE_CALL_144| 1)))) (exists ((|v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~head_reaches_tail~0#1_92| Int)) (and (exists ((|v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_#t~ret324#1_119| Int)) (= (mod |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_#t~ret324#1_119| 256) 0)) (= |__VERIFIER_assert_#in~cond| 0) (= |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~head_reaches_tail~0#1_92| 0))) (exists ((|v_#memory_int_30| (Array Int (Array Int Int))) (|v_#memory_int_5| (Array Int (Array Int Int))) (|v_#memory_int_116| (Array Int (Array Int Int))) (|v_#memory_int_117| (Array Int (Array Int Int)))) (and (= (select (select |v_#memory_int_116| 1) 1) 0) (= |#memory_int| (store |v_#memory_int_30| |v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base_BEFORE_CALL_144| (store (select |v_#memory_int_30| |v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base_BEFORE_CALL_144|) 24 (select (select |#memory_int| |v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base_BEFORE_CALL_144|) 24)))) (= |v_#memory_int_117| (store |v_#memory_int_5| |v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base_BEFORE_CALL_144| (store (select |v_#memory_int_5| |v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base_BEFORE_CALL_144|) 16 (select (select |v_#memory_int_117| |v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base_BEFORE_CALL_144|) 16)))) (= (store |v_#memory_int_116| |v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base_BEFORE_CALL_144| (store (select |v_#memory_int_116| |v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base_BEFORE_CALL_144|) 8 (select (select |v_#memory_int_5| |v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base_BEFORE_CALL_144|) 8))) |v_#memory_int_5|) (= |v_#memory_int_30| (store |v_#memory_int_117| |v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base_BEFORE_CALL_144| (store (select |v_#memory_int_117| |v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base_BEFORE_CALL_144|) 0 (select (select |v_#memory_int_30| |v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base_BEFORE_CALL_144|) 0)))) (= (select (select |v_#memory_int_116| 1) 0) 48))) (exists ((|v_#length_31| (Array Int Int))) (and (= (select |v_#length_31| 3) 12) (= 40 (select |v_#length_31| 4)) (= |#length| (store |v_#length_31| |v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base_BEFORE_CALL_144| 32)) (= 32 (select |v_#length_31| 2)) (= 2 (select |v_#length_31| 1)))) (exists ((|v_ULTIMATE.start_ensure_linked_list_is_allocated_~length~1#1_24| Int)) (<= (mod |v_ULTIMATE.start_ensure_linked_list_is_allocated_~length~1#1_24| 18446744073709551616) 0)) (exists ((|v_#memory_$Pointer$.offset_121| (Array Int (Array Int Int)))) (and (= |#funAddr~s_can_fail_realloc_allocator.offset| (select (select |v_#memory_$Pointer$.offset_121| 4) 16)) (= |#memory_$Pointer$.offset| (store |v_#memory_$Pointer$.offset_121| |v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base_BEFORE_CALL_144| (store (store (store (store (select |v_#memory_$Pointer$.offset_121| |v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base_BEFORE_CALL_144|) 8 0) 16 0) 0 16) 24 0))) (= (select (select |v_#memory_$Pointer$.offset_121| 4) 8) |#funAddr~s_can_fail_free_allocator.offset|) (= (select (select |v_#memory_$Pointer$.offset_121| 4) 0) |#funAddr~s_can_fail_malloc_allocator.offset|) (= (select (select |v_#memory_$Pointer$.offset_121| 4) 32) 0) (= |#funAddr~s_can_fail_calloc_allocator.offset| (select (select |v_#memory_$Pointer$.offset_121| 4) 24)))) (= |v_ULTIMATE.start_aws_linked_list_begin_~rval~0#1.base_BEFORE_CALL_15| (select (select |#memory_$Pointer$.base| |v_ULTIMATE.start_aws_linked_list_begin_~list#1.base_BEFORE_CALL_55|) 0)) (= |v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base_BEFORE_CALL_144| |v_ULTIMATE.start_aws_linked_list_begin_#in~list#1.base_BEFORE_CALL_37|) (= |v_ULTIMATE.start_aws_linked_list_begin_~list#1.base_BEFORE_CALL_55| |v_ULTIMATE.start_aws_linked_list_begin_#in~list#1.base_BEFORE_CALL_37|) (exists ((|v_ULTIMATE.start_aws_linked_list_begin_#t~ret328#1_37| Int) (|v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~head_reaches_tail~0#1_93| Int) (|v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.offset_129| Int) (|v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~list#1.base_63| Int) (|v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.base_115| Int) (|v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~list#1.offset_63| Int)) (and (= |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~head_reaches_tail~0#1_93| 1) (= |v_ULTIMATE.start_aws_linked_list_begin_#t~ret328#1_37| 1) (= |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.offset_129| (+ |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~list#1.offset_63| 16)) (= |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~list#1.base_63| |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.base_115|))) (<= (+ |#StackHeapBarrier| 1) |v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base_BEFORE_CALL_144|) (= (select (select |#memory_$Pointer$.offset| |v_ULTIMATE.start_aws_linked_list_begin_~list#1.base_BEFORE_CALL_55|) 0) |v_ULTIMATE.start_aws_linked_list_begin_~rval~0#1.offset_BEFORE_CALL_15|) (exists ((|v_ULTIMATE.start_aws_linked_list_begin_harness_#t~ret683#1_37| Int) (|v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.offset_128| Int) (|v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~list#1.base_62| Int) (|v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.base_114| Int) (|v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~head_reaches_tail~0#1_92| Int) (|v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~list#1.offset_62| Int)) (and (= |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~head_reaches_tail~0#1_92| 1) (= |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~list#1.base_62| |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.base_114|) (= |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.offset_128| (+ |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~list#1.offset_62| 16)) (= |v_ULTIMATE.start_aws_linked_list_begin_harness_#t~ret683#1_37| 1)))) (and (exists ((|v_#memory_real_4| (Array Int (Array Int Real))) (|v_#memory_real_27| (Array Int (Array Int Real))) (|v_#memory_real_113| (Array Int (Array Int Real))) (|v_#memory_real_114| (Array Int (Array Int Real)))) (and (= (store |v_#memory_real_4| |v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base_BEFORE_CALL_144| (store (select |v_#memory_real_4| |v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base_BEFORE_CALL_144|) 16 (select (select |v_#memory_real_114| |v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base_BEFORE_CALL_144|) 16))) |v_#memory_real_114|) (= |#memory_real| (store |v_#memory_real_27| |v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base_BEFORE_CALL_144| (store (select |v_#memory_real_27| |v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base_BEFORE_CALL_144|) 24 (select (select |#memory_real| |v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base_BEFORE_CALL_144|) 24)))) (= (store |v_#memory_real_113| |v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base_BEFORE_CALL_144| (store (select |v_#memory_real_113| |v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base_BEFORE_CALL_144|) 8 (select (select |v_#memory_real_4| |v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base_BEFORE_CALL_144|) 8))) |v_#memory_real_4|) (= |v_#memory_real_27| (store |v_#memory_real_114| |v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base_BEFORE_CALL_144| (store (select |v_#memory_real_114| |v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base_BEFORE_CALL_144|) 0 (select (select |v_#memory_real_27| |v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base_BEFORE_CALL_144|) 0)))))) (exists ((|v_#memory_$Pointer$.base_115| (Array Int (Array Int Int)))) (and (= (select (select |v_#memory_$Pointer$.base_115| 4) 8) |#funAddr~s_can_fail_free_allocator.base|) (= (select (select |v_#memory_$Pointer$.base_115| 4) 0) |#funAddr~s_can_fail_malloc_allocator.base|) (= |#funAddr~s_can_fail_realloc_allocator.base| (select (select |v_#memory_$Pointer$.base_115| 4) 16)) (= (store |v_#memory_$Pointer$.base_115| |v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base_BEFORE_CALL_144| (store (store (store (store (select |v_#memory_$Pointer$.base_115| |v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base_BEFORE_CALL_144|) 8 0) 16 0) 0 |v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base_BEFORE_CALL_144|) 24 |v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base_BEFORE_CALL_144|)) |#memory_$Pointer$.base|) (= |#funAddr~s_can_fail_calloc_allocator.base| (select (select |v_#memory_$Pointer$.base_115| 4) 24)) (= (select (select |v_#memory_$Pointer$.base_115| 4) 32) 0))) (exists ((|v_#valid_37| (Array Int Int))) (and (= (select |v_#valid_37| |v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base_BEFORE_CALL_144|) 0) (= (select |v_#valid_37| 2) 1) (= (select |v_#valid_37| 3) 1) (= (select |v_#valid_37| 4) 1) (= (select |v_#valid_37| 1) 1) (= (select |v_#valid_37| 0) 0) (= |#valid| (store |v_#valid_37| |v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base_BEFORE_CALL_144| 1)))) (exists ((|v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~head_reaches_tail~0#1_92| Int)) (and (exists ((|v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_#t~ret324#1_119| Int)) (= (mod |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_#t~ret324#1_119| 256) 0)) (= |__VERIFIER_assert_#in~cond| 0) (= |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~head_reaches_tail~0#1_92| 0))) (exists ((|v_#memory_int_30| (Array Int (Array Int Int))) (|v_#memory_int_5| (Array Int (Array Int Int))) (|v_#memory_int_116| (Array Int (Array Int Int))) (|v_#memory_int_117| (Array Int (Array Int Int)))) (and (= (select (select |v_#memory_int_116| 1) 1) 0) (= |#memory_int| (store |v_#memory_int_30| |v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base_BEFORE_CALL_144| (store (select |v_#memory_int_30| |v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base_BEFORE_CALL_144|) 24 (select (select |#memory_int| |v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base_BEFORE_CALL_144|) 24)))) (= |v_#memory_int_117| (store |v_#memory_int_5| |v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base_BEFORE_CALL_144| (store (select |v_#memory_int_5| |v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base_BEFORE_CALL_144|) 16 (select (select |v_#memory_int_117| |v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base_BEFORE_CALL_144|) 16)))) (= (store |v_#memory_int_116| |v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base_BEFORE_CALL_144| (store (select |v_#memory_int_116| |v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base_BEFORE_CALL_144|) 8 (select (select |v_#memory_int_5| |v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base_BEFORE_CALL_144|) 8))) |v_#memory_int_5|) (= |v_#memory_int_30| (store |v_#memory_int_117| |v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base_BEFORE_CALL_144| (store (select |v_#memory_int_117| |v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base_BEFORE_CALL_144|) 0 (select (select |v_#memory_int_30| |v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base_BEFORE_CALL_144|) 0)))) (= (select (select |v_#memory_int_116| 1) 0) 48))) (exists ((|v_#length_31| (Array Int Int))) (and (= (select |v_#length_31| 3) 12) (= 40 (select |v_#length_31| 4)) (= |#length| (store |v_#length_31| |v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base_BEFORE_CALL_144| 32)) (= 32 (select |v_#length_31| 2)) (= 2 (select |v_#length_31| 1)))) (exists ((|v_ULTIMATE.start_ensure_linked_list_is_allocated_~length~1#1_24| Int)) (<= (mod |v_ULTIMATE.start_ensure_linked_list_is_allocated_~length~1#1_24| 18446744073709551616) 0)) (exists ((|v_#memory_$Pointer$.offset_121| (Array Int (Array Int Int)))) (and (= |#funAddr~s_can_fail_realloc_allocator.offset| (select (select |v_#memory_$Pointer$.offset_121| 4) 16)) (= |#memory_$Pointer$.offset| (store |v_#memory_$Pointer$.offset_121| |v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base_BEFORE_CALL_144| (store (store (store (store (select |v_#memory_$Pointer$.offset_121| |v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base_BEFORE_CALL_144|) 8 0) 16 0) 0 16) 24 0))) (= (select (select |v_#memory_$Pointer$.offset_121| 4) 8) |#funAddr~s_can_fail_free_allocator.offset|) (= (select (select |v_#memory_$Pointer$.offset_121| 4) 0) |#funAddr~s_can_fail_malloc_allocator.offset|) (= (select (select |v_#memory_$Pointer$.offset_121| 4) 32) 0) (= |#funAddr~s_can_fail_calloc_allocator.offset| (select (select |v_#memory_$Pointer$.offset_121| 4) 24)))) (= |v_ULTIMATE.start_aws_linked_list_begin_~rval~0#1.base_BEFORE_CALL_15| (select (select |#memory_$Pointer$.base| |v_ULTIMATE.start_aws_linked_list_begin_~list#1.base_BEFORE_CALL_55|) 0)) (= |v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base_BEFORE_CALL_144| |v_ULTIMATE.start_aws_linked_list_begin_#in~list#1.base_BEFORE_CALL_37|) (= |v_ULTIMATE.start_aws_linked_list_begin_~list#1.base_BEFORE_CALL_55| |v_ULTIMATE.start_aws_linked_list_begin_#in~list#1.base_BEFORE_CALL_37|) (exists ((|v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~head_reaches_tail~0#1_94| Int) (|v_ULTIMATE.start_aws_linked_list_begin_harness_#t~ret683#1_37| Int) (|v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~list#1.offset_64| Int) (|v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~list#1.base_64| Int) (|v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.base_116| Int) (|v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.offset_130| Int)) (and (= |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.offset_130| (+ |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~list#1.offset_64| 16)) (= |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~list#1.base_64| |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.base_116|) (= |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~head_reaches_tail~0#1_94| 1) (= |v_ULTIMATE.start_aws_linked_list_begin_harness_#t~ret683#1_37| 1))) (exists ((|v_ULTIMATE.start_aws_linked_list_begin_#t~ret328#1_37| Int) (|v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.offset_128| Int) (|v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~list#1.base_62| Int) (|v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.base_114| Int) (|v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~head_reaches_tail~0#1_92| Int) (|v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~list#1.offset_62| Int)) (and (= |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~head_reaches_tail~0#1_92| 1) (= |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~list#1.base_62| |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.base_114|) (= |v_ULTIMATE.start_aws_linked_list_begin_#t~ret328#1_37| 1) (= |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.offset_128| (+ |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~list#1.offset_62| 16)))) (<= (+ |#StackHeapBarrier| 1) |v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base_BEFORE_CALL_144|) (= (select (select |#memory_$Pointer$.offset| |v_ULTIMATE.start_aws_linked_list_begin_~list#1.base_BEFORE_CALL_55|) 0) |v_ULTIMATE.start_aws_linked_list_begin_~rval~0#1.offset_BEFORE_CALL_15|)))) (= ~tl_last_error~0 0))' at error location [2023-12-02 14:28:57,872 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2023-12-02 14:28:57,872 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-02 14:28:57,872 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 30, 15] total 55 [2023-12-02 14:28:57,872 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1662959919] [2023-12-02 14:28:57,872 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-02 14:28:57,873 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 55 states [2023-12-02 14:28:57,873 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 14:28:57,874 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 55 interpolants. [2023-12-02 14:28:57,876 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=421, Invalid=6040, Unknown=19, NotChecked=0, Total=6480 [2023-12-02 14:28:57,877 INFO L87 Difference]: Start difference. First operand 370 states and 506 transitions. Second operand has 55 states, 45 states have (on average 2.3333333333333335) internal successors, (105), 46 states have internal predecessors, (105), 19 states have call successors, (30), 4 states have call predecessors, (30), 15 states have return successors, (29), 17 states have call predecessors, (29), 18 states have call successors, (29) [2023-12-02 14:30:38,155 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 14:30:38,155 INFO L93 Difference]: Finished difference Result 531 states and 717 transitions. [2023-12-02 14:30:38,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2023-12-02 14:30:38,157 INFO L78 Accepts]: Start accepts. Automaton has has 55 states, 45 states have (on average 2.3333333333333335) internal successors, (105), 46 states have internal predecessors, (105), 19 states have call successors, (30), 4 states have call predecessors, (30), 15 states have return successors, (29), 17 states have call predecessors, (29), 18 states have call successors, (29) Word has length 67 [2023-12-02 14:30:38,157 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 14:30:38,159 INFO L225 Difference]: With dead ends: 531 [2023-12-02 14:30:38,159 INFO L226 Difference]: Without dead ends: 281 [2023-12-02 14:30:38,165 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 263 GetRequests, 139 SyntacticMatches, 8 SemanticMatches, 116 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4635 ImplicationChecksByTransitivity, 217.5s TimeCoverageRelationStatistics Valid=1127, Invalid=12641, Unknown=38, NotChecked=0, Total=13806 [2023-12-02 14:30:38,166 INFO L413 NwaCegarLoop]: 44 mSDtfsCounter, 211 mSDsluCounter, 968 mSDsCounter, 0 mSdLazyCounter, 2060 mSolverCounterSat, 120 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 218 SdHoareTripleChecker+Valid, 1012 SdHoareTripleChecker+Invalid, 2180 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 120 IncrementalHoareTripleChecker+Valid, 2060 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.6s IncrementalHoareTripleChecker+Time [2023-12-02 14:30:38,166 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [218 Valid, 1012 Invalid, 2180 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [120 Valid, 2060 Invalid, 0 Unknown, 0 Unchecked, 17.6s Time] [2023-12-02 14:30:38,167 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 281 states. [2023-12-02 14:30:38,270 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 281 to 267. [2023-12-02 14:30:38,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 267 states, 184 states have (on average 1.1630434782608696) internal successors, (214), 193 states have internal predecessors, (214), 53 states have call successors, (53), 22 states have call predecessors, (53), 29 states have return successors, (73), 51 states have call predecessors, (73), 51 states have call successors, (73) [2023-12-02 14:30:38,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 267 states to 267 states and 340 transitions. [2023-12-02 14:30:38,272 INFO L78 Accepts]: Start accepts. Automaton has 267 states and 340 transitions. Word has length 67 [2023-12-02 14:30:38,272 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 14:30:38,273 INFO L495 AbstractCegarLoop]: Abstraction has 267 states and 340 transitions. [2023-12-02 14:30:38,273 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 55 states, 45 states have (on average 2.3333333333333335) internal successors, (105), 46 states have internal predecessors, (105), 19 states have call successors, (30), 4 states have call predecessors, (30), 15 states have return successors, (29), 17 states have call predecessors, (29), 18 states have call successors, (29) [2023-12-02 14:30:38,273 INFO L276 IsEmpty]: Start isEmpty. Operand 267 states and 340 transitions. [2023-12-02 14:30:38,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2023-12-02 14:30:38,274 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 14:30:38,274 INFO L195 NwaCegarLoop]: trace histogram [6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2023-12-02 14:30:38,280 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c54d012-2dc3-49ba-a13d-c90e65ffec40/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2023-12-02 14:30:38,474 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c54d012-2dc3-49ba-a13d-c90e65ffec40/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 14:30:38,475 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 14:30:38,475 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 14:30:38,475 INFO L85 PathProgramCache]: Analyzing trace with hash 1351466418, now seen corresponding path program 1 times [2023-12-02 14:30:38,475 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 14:30:38,475 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [109687869] [2023-12-02 14:30:38,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 14:30:38,475 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 14:30:38,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 14:30:39,223 INFO L134 CoverageAnalysis]: Checked inductivity of 69 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 61 trivial. 0 not checked. [2023-12-02 14:30:39,223 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 14:30:39,223 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [109687869] [2023-12-02 14:30:39,223 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [109687869] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 14:30:39,223 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 14:30:39,223 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-02 14:30:39,223 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [87741438] [2023-12-02 14:30:39,224 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 14:30:39,224 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-02 14:30:39,224 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 14:30:39,225 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-02 14:30:39,225 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-12-02 14:30:39,225 INFO L87 Difference]: Start difference. First operand 267 states and 340 transitions. Second operand has 8 states, 7 states have (on average 3.7142857142857144) internal successors, (26), 6 states have internal predecessors, (26), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 1 states have call successors, (8) [2023-12-02 14:30:40,438 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 14:30:40,438 INFO L93 Difference]: Finished difference Result 283 states and 358 transitions. [2023-12-02 14:30:40,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-02 14:30:40,439 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.7142857142857144) internal successors, (26), 6 states have internal predecessors, (26), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 1 states have call successors, (8) Word has length 70 [2023-12-02 14:30:40,439 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 14:30:40,441 INFO L225 Difference]: With dead ends: 283 [2023-12-02 14:30:40,441 INFO L226 Difference]: Without dead ends: 281 [2023-12-02 14:30:40,441 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2023-12-02 14:30:40,442 INFO L413 NwaCegarLoop]: 43 mSDtfsCounter, 8 mSDsluCounter, 247 mSDsCounter, 0 mSdLazyCounter, 108 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 290 SdHoareTripleChecker+Invalid, 108 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 108 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-02 14:30:40,442 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 290 Invalid, 108 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 108 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-02 14:30:40,443 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 281 states. [2023-12-02 14:30:40,537 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 281 to 278. [2023-12-02 14:30:40,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 278 states, 190 states have (on average 1.1578947368421053) internal successors, (220), 199 states have internal predecessors, (220), 56 states have call successors, (56), 24 states have call predecessors, (56), 31 states have return successors, (76), 54 states have call predecessors, (76), 54 states have call successors, (76) [2023-12-02 14:30:40,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 278 states to 278 states and 352 transitions. [2023-12-02 14:30:40,539 INFO L78 Accepts]: Start accepts. Automaton has 278 states and 352 transitions. Word has length 70 [2023-12-02 14:30:40,539 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 14:30:40,539 INFO L495 AbstractCegarLoop]: Abstraction has 278 states and 352 transitions. [2023-12-02 14:30:40,540 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.7142857142857144) internal successors, (26), 6 states have internal predecessors, (26), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 1 states have call successors, (8) [2023-12-02 14:30:40,540 INFO L276 IsEmpty]: Start isEmpty. Operand 278 states and 352 transitions. [2023-12-02 14:30:40,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2023-12-02 14:30:40,541 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 14:30:40,541 INFO L195 NwaCegarLoop]: trace histogram [6, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 14:30:40,541 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-12-02 14:30:40,541 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 14:30:40,541 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 14:30:40,542 INFO L85 PathProgramCache]: Analyzing trace with hash -1072059407, now seen corresponding path program 2 times [2023-12-02 14:30:40,542 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 14:30:40,542 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [301618334] [2023-12-02 14:30:40,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 14:30:40,542 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 14:30:40,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 14:30:44,463 INFO L134 CoverageAnalysis]: Checked inductivity of 79 backedges. 17 proven. 38 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-12-02 14:30:44,464 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 14:30:44,464 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [301618334] [2023-12-02 14:30:44,464 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [301618334] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 14:30:44,464 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1160901102] [2023-12-02 14:30:44,464 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-12-02 14:30:44,464 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 14:30:44,464 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c54d012-2dc3-49ba-a13d-c90e65ffec40/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 14:30:44,465 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c54d012-2dc3-49ba-a13d-c90e65ffec40/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 14:30:44,466 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c54d012-2dc3-49ba-a13d-c90e65ffec40/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2023-12-02 14:30:44,715 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2023-12-02 14:30:44,715 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-02 14:30:44,719 INFO L262 TraceCheckSpWp]: Trace formula consists of 402 conjuncts, 75 conjunts are in the unsatisfiable core [2023-12-02 14:30:44,723 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 14:30:45,106 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-12-02 14:30:45,123 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-12-02 14:31:06,462 INFO L134 CoverageAnalysis]: Checked inductivity of 79 backedges. 57 proven. 15 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-12-02 14:31:06,462 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 14:31:12,853 INFO L134 CoverageAnalysis]: Checked inductivity of 79 backedges. 35 proven. 21 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2023-12-02 14:31:12,854 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1160901102] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 14:31:12,854 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [831500958] [2023-12-02 14:31:12,856 INFO L159 IcfgInterpreter]: Started Sifa with 35 locations of interest [2023-12-02 14:31:12,856 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 14:31:12,857 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-12-02 14:31:12,857 INFO L176 IcfgInterpreter]: Starting interpretation [2023-12-02 14:31:12,857 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-12-02 14:31:16,268 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 276 for LOIs [2023-12-02 14:31:16,844 INFO L197 IcfgInterpreter]: Interpreting procedure aws_linked_list_is_valid with input of size 17 for LOIs [2023-12-02 14:31:17,232 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 12 for LOIs [2023-12-02 14:31:17,240 INFO L197 IcfgInterpreter]: Interpreting procedure nondet_uint64_t with input of size 94 for LOIs [2023-12-02 14:31:17,264 INFO L197 IcfgInterpreter]: Interpreting procedure aws_linked_list_node_next_is_valid with input of size 25 for LOIs [2023-12-02 14:31:17,308 INFO L180 IcfgInterpreter]: Interpretation finished [2023-12-02 14:31:24,378 WARN L293 SmtUtils]: Spent 6.25s on a formula simplification. DAG size of input: 280 DAG size of output: 239 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 14:32:05,211 WARN L293 SmtUtils]: Spent 6.22s on a formula simplification. DAG size of input: 258 DAG size of output: 242 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 14:32:12,191 WARN L293 SmtUtils]: Spent 5.37s on a formula simplification. DAG size of input: 261 DAG size of output: 224 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 14:32:19,348 WARN L293 SmtUtils]: Spent 5.41s on a formula simplification. DAG size of input: 269 DAG size of output: 232 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 14:32:29,472 WARN L293 SmtUtils]: Spent 7.18s on a formula simplification. DAG size of input: 280 DAG size of output: 254 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 14:32:38,737 WARN L293 SmtUtils]: Spent 7.34s on a formula simplification. DAG size of input: 276 DAG size of output: 242 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 14:32:48,292 WARN L293 SmtUtils]: Spent 7.03s on a formula simplification. DAG size of input: 278 DAG size of output: 244 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 14:32:48,294 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '11392#(and (<= 1 |#StackHeapBarrier|) (exists ((|v_ULTIMATE.start_aws_linked_list_begin_#in~list#1.base_BEFORE_CALL_47| Int) (|v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base_BEFORE_CALL_168| Int) (|v_ULTIMATE.start_aws_linked_list_begin_~list#1.base_BEFORE_CALL_70| Int) (|v_ULTIMATE.start_aws_linked_list_begin_~rval~0#1.base_BEFORE_CALL_19| Int) (|v_ULTIMATE.start_aws_linked_list_begin_~rval~0#1.offset_BEFORE_CALL_19| Int)) (or (and (exists ((|v_ULTIMATE.start_ensure_linked_list_is_allocated_~length~1#1_25| Int)) (<= (mod |v_ULTIMATE.start_ensure_linked_list_is_allocated_~length~1#1_25| 18446744073709551616) 0)) (exists ((|v_#valid_38| (Array Int Int))) (and (= (select |v_#valid_38| |v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base_BEFORE_CALL_168|) 0) (= (select |v_#valid_38| 0) 0) (= (select |v_#valid_38| 3) 1) (= (select |v_#valid_38| 2) 1) (= (select |v_#valid_38| 1) 1) (= (select |v_#valid_38| 4) 1) (= (store |v_#valid_38| |v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base_BEFORE_CALL_168| 1) |#valid|))) (exists ((|v_#memory_int_30| (Array Int (Array Int Int))) (|v_#memory_int_5| (Array Int (Array Int Int))) (|v_#memory_int_125| (Array Int (Array Int Int))) (|v_#memory_int_124| (Array Int (Array Int Int)))) (and (= (store |v_#memory_int_5| |v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base_BEFORE_CALL_168| (store (select |v_#memory_int_5| |v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base_BEFORE_CALL_168|) 16 (select (select |v_#memory_int_125| |v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base_BEFORE_CALL_168|) 16))) |v_#memory_int_125|) (= |v_#memory_int_30| (store |v_#memory_int_125| |v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base_BEFORE_CALL_168| (store (select |v_#memory_int_125| |v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base_BEFORE_CALL_168|) 0 (select (select |v_#memory_int_30| |v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base_BEFORE_CALL_168|) 0)))) (= |#memory_int| (store |v_#memory_int_30| |v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base_BEFORE_CALL_168| (store (select |v_#memory_int_30| |v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base_BEFORE_CALL_168|) 24 (select (select |#memory_int| |v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base_BEFORE_CALL_168|) 24)))) (= (store |v_#memory_int_124| |v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base_BEFORE_CALL_168| (store (select |v_#memory_int_124| |v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base_BEFORE_CALL_168|) 8 (select (select |v_#memory_int_5| |v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base_BEFORE_CALL_168|) 8))) |v_#memory_int_5|) (= 48 (select (select |v_#memory_int_124| 1) 0)) (= (select (select |v_#memory_int_124| 1) 1) 0))) (exists ((|v_#length_32| (Array Int Int))) (and (= (select |v_#length_32| 1) 2) (= 32 (select |v_#length_32| 2)) (= (select |v_#length_32| 3) 12) (= (store |v_#length_32| |v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base_BEFORE_CALL_168| 32) |#length|) (= 40 (select |v_#length_32| 4)))) (= (select (select |#memory_$Pointer$.base| |v_ULTIMATE.start_aws_linked_list_begin_~list#1.base_BEFORE_CALL_70|) 0) |v_ULTIMATE.start_aws_linked_list_begin_~rval~0#1.base_BEFORE_CALL_19|) (<= (+ |#StackHeapBarrier| 1) |v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base_BEFORE_CALL_168|) (= |v_ULTIMATE.start_aws_linked_list_begin_~list#1.base_BEFORE_CALL_70| |v_ULTIMATE.start_aws_linked_list_begin_#in~list#1.base_BEFORE_CALL_47|) (exists ((|v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~head_reaches_tail~0#1_122| Int)) (and (= |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~head_reaches_tail~0#1_122| 0) (exists ((|v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_#t~ret324#1_157| Int)) (= (mod |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_#t~ret324#1_157| 256) 0)) (= |__VERIFIER_assert_#in~cond| 0))) (exists ((|v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~head_reaches_tail~0#1_122| Int) (|v_ULTIMATE.start_aws_linked_list_begin_#t~ret328#1_41| Int) (|v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.offset_169| Int) (|v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.base_155| Int) (|v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~list#1.base_82| Int) (|v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~list#1.offset_82| Int)) (and (= |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.offset_169| (+ |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~list#1.offset_82| 16)) (= |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~head_reaches_tail~0#1_122| 1) (= |v_ULTIMATE.start_aws_linked_list_begin_#t~ret328#1_41| 1) (= |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~list#1.base_82| |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.base_155|))) (exists ((|v_#memory_$Pointer$.base_122| (Array Int (Array Int Int)))) (and (= (select (select |v_#memory_$Pointer$.base_122| 4) 32) 0) (= (select (select |v_#memory_$Pointer$.base_122| 4) 8) |#funAddr~s_can_fail_free_allocator.base|) (= (select (select |v_#memory_$Pointer$.base_122| 4) 16) |#funAddr~s_can_fail_realloc_allocator.base|) (= (select (select |v_#memory_$Pointer$.base_122| 4) 24) |#funAddr~s_can_fail_calloc_allocator.base|) (= (select (select |v_#memory_$Pointer$.base_122| 4) 0) |#funAddr~s_can_fail_malloc_allocator.base|) (= |#memory_$Pointer$.base| (store |v_#memory_$Pointer$.base_122| |v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base_BEFORE_CALL_168| (store (store (store (store (select |v_#memory_$Pointer$.base_122| |v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base_BEFORE_CALL_168|) 8 0) 16 0) 0 |v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base_BEFORE_CALL_168|) 24 |v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base_BEFORE_CALL_168|))))) (exists ((|v_#memory_$Pointer$.offset_128| (Array Int (Array Int Int)))) (and (= |#memory_$Pointer$.offset| (store |v_#memory_$Pointer$.offset_128| |v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base_BEFORE_CALL_168| (store (store (store (store (select |v_#memory_$Pointer$.offset_128| |v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base_BEFORE_CALL_168|) 8 0) 16 0) 0 16) 24 0))) (= |#funAddr~s_can_fail_malloc_allocator.offset| (select (select |v_#memory_$Pointer$.offset_128| 4) 0)) (= |#funAddr~s_can_fail_realloc_allocator.offset| (select (select |v_#memory_$Pointer$.offset_128| 4) 16)) (= (select (select |v_#memory_$Pointer$.offset_128| 4) 32) 0) (= |#funAddr~s_can_fail_calloc_allocator.offset| (select (select |v_#memory_$Pointer$.offset_128| 4) 24)) (= (select (select |v_#memory_$Pointer$.offset_128| 4) 8) |#funAddr~s_can_fail_free_allocator.offset|))) (exists ((|v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~head_reaches_tail~0#1_123| Int) (|v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.offset_170| Int) (|v_ULTIMATE.start_aws_linked_list_begin_harness_#t~ret683#1_39| Int) (|v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.base_156| Int) (|v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~list#1.base_83| Int) (|v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~list#1.offset_83| Int)) (and (= |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~head_reaches_tail~0#1_123| 1) (= |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.offset_170| (+ |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~list#1.offset_83| 16)) (= |v_ULTIMATE.start_aws_linked_list_begin_harness_#t~ret683#1_39| 1) (= |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~list#1.base_83| |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.base_156|))) (= |v_ULTIMATE.start_aws_linked_list_begin_~rval~0#1.offset_BEFORE_CALL_19| (select (select |#memory_$Pointer$.offset| |v_ULTIMATE.start_aws_linked_list_begin_~list#1.base_BEFORE_CALL_70|) 0)) (= |v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base_BEFORE_CALL_168| |v_ULTIMATE.start_aws_linked_list_begin_#in~list#1.base_BEFORE_CALL_47|) (exists ((|v_#memory_real_4| (Array Int (Array Int Real))) (|v_#memory_real_27| (Array Int (Array Int Real))) (|v_#memory_real_122| (Array Int (Array Int Real))) (|v_#memory_real_121| (Array Int (Array Int Real)))) (and (= |v_#memory_real_122| (store |v_#memory_real_4| |v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base_BEFORE_CALL_168| (store (select |v_#memory_real_4| |v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base_BEFORE_CALL_168|) 16 (select (select |v_#memory_real_122| |v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base_BEFORE_CALL_168|) 16)))) (= (store |v_#memory_real_122| |v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base_BEFORE_CALL_168| (store (select |v_#memory_real_122| |v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base_BEFORE_CALL_168|) 0 (select (select |v_#memory_real_27| |v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base_BEFORE_CALL_168|) 0))) |v_#memory_real_27|) (= |#memory_real| (store |v_#memory_real_27| |v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base_BEFORE_CALL_168| (store (select |v_#memory_real_27| |v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base_BEFORE_CALL_168|) 24 (select (select |#memory_real| |v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base_BEFORE_CALL_168|) 24)))) (= (store |v_#memory_real_121| |v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base_BEFORE_CALL_168| (store (select |v_#memory_real_121| |v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base_BEFORE_CALL_168|) 8 (select (select |v_#memory_real_4| |v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base_BEFORE_CALL_168|) 8))) |v_#memory_real_4|)))) (and (exists ((|v_ULTIMATE.start_ensure_linked_list_is_allocated_~length~1#1_25| Int)) (<= (mod |v_ULTIMATE.start_ensure_linked_list_is_allocated_~length~1#1_25| 18446744073709551616) 0)) (exists ((|v_#valid_38| (Array Int Int))) (and (= (select |v_#valid_38| |v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base_BEFORE_CALL_168|) 0) (= (select |v_#valid_38| 0) 0) (= (select |v_#valid_38| 3) 1) (= (select |v_#valid_38| 2) 1) (= (select |v_#valid_38| 1) 1) (= (select |v_#valid_38| 4) 1) (= (store |v_#valid_38| |v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base_BEFORE_CALL_168| 1) |#valid|))) (exists ((|v_#memory_int_30| (Array Int (Array Int Int))) (|v_#memory_int_5| (Array Int (Array Int Int))) (|v_#memory_int_125| (Array Int (Array Int Int))) (|v_#memory_int_124| (Array Int (Array Int Int)))) (and (= (store |v_#memory_int_5| |v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base_BEFORE_CALL_168| (store (select |v_#memory_int_5| |v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base_BEFORE_CALL_168|) 16 (select (select |v_#memory_int_125| |v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base_BEFORE_CALL_168|) 16))) |v_#memory_int_125|) (= |v_#memory_int_30| (store |v_#memory_int_125| |v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base_BEFORE_CALL_168| (store (select |v_#memory_int_125| |v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base_BEFORE_CALL_168|) 0 (select (select |v_#memory_int_30| |v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base_BEFORE_CALL_168|) 0)))) (= |#memory_int| (store |v_#memory_int_30| |v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base_BEFORE_CALL_168| (store (select |v_#memory_int_30| |v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base_BEFORE_CALL_168|) 24 (select (select |#memory_int| |v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base_BEFORE_CALL_168|) 24)))) (= (store |v_#memory_int_124| |v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base_BEFORE_CALL_168| (store (select |v_#memory_int_124| |v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base_BEFORE_CALL_168|) 8 (select (select |v_#memory_int_5| |v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base_BEFORE_CALL_168|) 8))) |v_#memory_int_5|) (= 48 (select (select |v_#memory_int_124| 1) 0)) (= (select (select |v_#memory_int_124| 1) 1) 0))) (exists ((|v_#length_32| (Array Int Int))) (and (= (select |v_#length_32| 1) 2) (= 32 (select |v_#length_32| 2)) (= (select |v_#length_32| 3) 12) (= (store |v_#length_32| |v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base_BEFORE_CALL_168| 32) |#length|) (= 40 (select |v_#length_32| 4)))) (= (select (select |#memory_$Pointer$.base| |v_ULTIMATE.start_aws_linked_list_begin_~list#1.base_BEFORE_CALL_70|) 0) |v_ULTIMATE.start_aws_linked_list_begin_~rval~0#1.base_BEFORE_CALL_19|) (<= (+ |#StackHeapBarrier| 1) |v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base_BEFORE_CALL_168|) (= |v_ULTIMATE.start_aws_linked_list_begin_~list#1.base_BEFORE_CALL_70| |v_ULTIMATE.start_aws_linked_list_begin_#in~list#1.base_BEFORE_CALL_47|) (exists ((|v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~head_reaches_tail~0#1_124| Int) (|v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.offset_171| Int) (|v_ULTIMATE.start_aws_linked_list_begin_harness_#t~ret683#1_39| Int) (|v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.base_157| Int) (|v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~list#1.base_84| Int) (|v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~list#1.offset_84| Int)) (and (= |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~head_reaches_tail~0#1_124| 1) (= |v_ULTIMATE.start_aws_linked_list_begin_harness_#t~ret683#1_39| 1) (= |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.offset_171| (+ |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~list#1.offset_84| 16)) (= |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~list#1.base_84| |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.base_157|))) (exists ((|v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~head_reaches_tail~0#1_122| Int)) (and (= |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~head_reaches_tail~0#1_122| 0) (exists ((|v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_#t~ret324#1_157| Int)) (= (mod |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_#t~ret324#1_157| 256) 0)) (= |__VERIFIER_assert_#in~cond| 0))) (exists ((|v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~head_reaches_tail~0#1_122| Int) (|v_ULTIMATE.start_aws_linked_list_begin_#t~ret328#1_41| Int) (|v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.offset_169| Int) (|v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.base_155| Int) (|v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~list#1.base_82| Int) (|v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~list#1.offset_82| Int)) (and (= |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.offset_169| (+ |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~list#1.offset_82| 16)) (= |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~head_reaches_tail~0#1_122| 1) (= |v_ULTIMATE.start_aws_linked_list_begin_#t~ret328#1_41| 1) (= |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~list#1.base_82| |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.base_155|))) (exists ((|v_#memory_$Pointer$.base_122| (Array Int (Array Int Int)))) (and (= (select (select |v_#memory_$Pointer$.base_122| 4) 32) 0) (= (select (select |v_#memory_$Pointer$.base_122| 4) 8) |#funAddr~s_can_fail_free_allocator.base|) (= (select (select |v_#memory_$Pointer$.base_122| 4) 16) |#funAddr~s_can_fail_realloc_allocator.base|) (= (select (select |v_#memory_$Pointer$.base_122| 4) 24) |#funAddr~s_can_fail_calloc_allocator.base|) (= (select (select |v_#memory_$Pointer$.base_122| 4) 0) |#funAddr~s_can_fail_malloc_allocator.base|) (= |#memory_$Pointer$.base| (store |v_#memory_$Pointer$.base_122| |v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base_BEFORE_CALL_168| (store (store (store (store (select |v_#memory_$Pointer$.base_122| |v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base_BEFORE_CALL_168|) 8 0) 16 0) 0 |v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base_BEFORE_CALL_168|) 24 |v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base_BEFORE_CALL_168|))))) (exists ((|v_#memory_$Pointer$.offset_128| (Array Int (Array Int Int)))) (and (= |#memory_$Pointer$.offset| (store |v_#memory_$Pointer$.offset_128| |v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base_BEFORE_CALL_168| (store (store (store (store (select |v_#memory_$Pointer$.offset_128| |v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base_BEFORE_CALL_168|) 8 0) 16 0) 0 16) 24 0))) (= |#funAddr~s_can_fail_malloc_allocator.offset| (select (select |v_#memory_$Pointer$.offset_128| 4) 0)) (= |#funAddr~s_can_fail_realloc_allocator.offset| (select (select |v_#memory_$Pointer$.offset_128| 4) 16)) (= (select (select |v_#memory_$Pointer$.offset_128| 4) 32) 0) (= |#funAddr~s_can_fail_calloc_allocator.offset| (select (select |v_#memory_$Pointer$.offset_128| 4) 24)) (= (select (select |v_#memory_$Pointer$.offset_128| 4) 8) |#funAddr~s_can_fail_free_allocator.offset|))) (= |v_ULTIMATE.start_aws_linked_list_begin_~rval~0#1.offset_BEFORE_CALL_19| (select (select |#memory_$Pointer$.offset| |v_ULTIMATE.start_aws_linked_list_begin_~list#1.base_BEFORE_CALL_70|) 0)) (= |v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base_BEFORE_CALL_168| |v_ULTIMATE.start_aws_linked_list_begin_#in~list#1.base_BEFORE_CALL_47|) (exists ((|v_#memory_real_4| (Array Int (Array Int Real))) (|v_#memory_real_27| (Array Int (Array Int Real))) (|v_#memory_real_122| (Array Int (Array Int Real))) (|v_#memory_real_121| (Array Int (Array Int Real)))) (and (= |v_#memory_real_122| (store |v_#memory_real_4| |v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base_BEFORE_CALL_168| (store (select |v_#memory_real_4| |v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base_BEFORE_CALL_168|) 16 (select (select |v_#memory_real_122| |v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base_BEFORE_CALL_168|) 16)))) (= (store |v_#memory_real_122| |v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base_BEFORE_CALL_168| (store (select |v_#memory_real_122| |v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base_BEFORE_CALL_168|) 0 (select (select |v_#memory_real_27| |v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base_BEFORE_CALL_168|) 0))) |v_#memory_real_27|) (= |#memory_real| (store |v_#memory_real_27| |v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base_BEFORE_CALL_168| (store (select |v_#memory_real_27| |v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base_BEFORE_CALL_168|) 24 (select (select |#memory_real| |v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base_BEFORE_CALL_168|) 24)))) (= (store |v_#memory_real_121| |v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base_BEFORE_CALL_168| (store (select |v_#memory_real_121| |v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base_BEFORE_CALL_168|) 8 (select (select |v_#memory_real_4| |v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base_BEFORE_CALL_168|) 8))) |v_#memory_real_4|)))))) (= |~#s_can_fail_allocator_static~0.base| 4) (= |~#s_can_fail_allocator_static~0.offset| 0) (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond) (= ~tl_last_error~0 0))' at error location [2023-12-02 14:32:48,294 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2023-12-02 14:32:48,294 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-02 14:32:48,294 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 19, 13] total 40 [2023-12-02 14:32:48,295 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [862776690] [2023-12-02 14:32:48,295 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-02 14:32:48,296 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 40 states [2023-12-02 14:32:48,296 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 14:32:48,297 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2023-12-02 14:32:48,299 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=368, Invalid=3905, Unknown=17, NotChecked=0, Total=4290 [2023-12-02 14:32:48,300 INFO L87 Difference]: Start difference. First operand 278 states and 352 transitions. Second operand has 40 states, 37 states have (on average 2.5945945945945947) internal successors, (96), 39 states have internal predecessors, (96), 19 states have call successors, (32), 4 states have call predecessors, (32), 8 states have return successors, (31), 17 states have call predecessors, (31), 18 states have call successors, (31) [2023-12-02 14:33:01,309 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 14:33:05,590 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 14:33:07,600 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 14:33:09,718 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 14:33:11,878 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 14:33:13,989 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 14:33:20,301 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 14:33:28,572 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 14:33:38,896 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 14:33:51,232 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 14:33:53,238 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 14:33:55,243 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 14:33:57,255 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 14:33:59,262 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 14:34:01,267 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 14:34:13,606 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 14:34:15,610 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 14:34:17,616 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 14:34:19,622 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 14:34:21,625 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 14:34:23,740 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 14:34:25,874 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 14:34:27,916 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 14:34:29,925 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 14:34:31,928 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 14:34:34,048 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 14:34:36,210 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 14:34:38,343 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 14:34:40,385 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 14:34:42,390 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 14:34:44,507 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 14:34:46,680 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 14:34:51,093 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 14:34:54,421 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 14:34:56,485 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 14:34:58,610 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 14:35:00,702 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 14:35:02,735 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 14:35:07,061 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 14:35:11,388 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 14:35:13,420 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 14:35:15,429 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 14:35:17,465 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 14:35:19,476 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 14:35:21,497 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 14:35:25,872 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 14:35:27,931 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 14:35:29,935 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 14:35:31,941 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 14:35:34,495 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 14:35:36,770 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 14:35:45,408 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 14:35:47,418 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 14:35:51,296 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 14:35:51,678 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 14:35:51,678 INFO L93 Difference]: Finished difference Result 551 states and 692 transitions. [2023-12-02 14:35:51,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2023-12-02 14:35:51,679 INFO L78 Accepts]: Start accepts. Automaton has has 40 states, 37 states have (on average 2.5945945945945947) internal successors, (96), 39 states have internal predecessors, (96), 19 states have call successors, (32), 4 states have call predecessors, (32), 8 states have return successors, (31), 17 states have call predecessors, (31), 18 states have call successors, (31) Word has length 73 [2023-12-02 14:35:51,679 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 14:35:51,682 INFO L225 Difference]: With dead ends: 551 [2023-12-02 14:35:51,683 INFO L226 Difference]: Without dead ends: 402 [2023-12-02 14:35:51,686 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 281 GetRequests, 177 SyntacticMatches, 8 SemanticMatches, 96 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3418 ImplicationChecksByTransitivity, 177.6s TimeCoverageRelationStatistics Valid=971, Invalid=8492, Unknown=43, NotChecked=0, Total=9506 [2023-12-02 14:35:51,687 INFO L413 NwaCegarLoop]: 58 mSDtfsCounter, 291 mSDsluCounter, 774 mSDsCounter, 0 mSdLazyCounter, 1565 mSolverCounterSat, 113 mSolverCounterUnsat, 54 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 121.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 293 SdHoareTripleChecker+Valid, 832 SdHoareTripleChecker+Invalid, 1732 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 113 IncrementalHoareTripleChecker+Valid, 1565 IncrementalHoareTripleChecker+Invalid, 54 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 121.4s IncrementalHoareTripleChecker+Time [2023-12-02 14:35:51,687 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [293 Valid, 832 Invalid, 1732 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [113 Valid, 1565 Invalid, 54 Unknown, 0 Unchecked, 121.4s Time] [2023-12-02 14:35:51,688 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 402 states. [2023-12-02 14:35:51,853 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 402 to 373. [2023-12-02 14:35:51,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 373 states, 254 states have (on average 1.1653543307086613) internal successors, (296), 266 states have internal predecessors, (296), 75 states have call successors, (75), 33 states have call predecessors, (75), 43 states have return successors, (96), 73 states have call predecessors, (96), 71 states have call successors, (96) [2023-12-02 14:35:51,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 373 states to 373 states and 467 transitions. [2023-12-02 14:35:51,856 INFO L78 Accepts]: Start accepts. Automaton has 373 states and 467 transitions. Word has length 73 [2023-12-02 14:35:51,857 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 14:35:51,857 INFO L495 AbstractCegarLoop]: Abstraction has 373 states and 467 transitions. [2023-12-02 14:35:51,857 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 40 states, 37 states have (on average 2.5945945945945947) internal successors, (96), 39 states have internal predecessors, (96), 19 states have call successors, (32), 4 states have call predecessors, (32), 8 states have return successors, (31), 17 states have call predecessors, (31), 18 states have call successors, (31) [2023-12-02 14:35:51,857 INFO L276 IsEmpty]: Start isEmpty. Operand 373 states and 467 transitions. [2023-12-02 14:35:51,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2023-12-02 14:35:51,859 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 14:35:51,859 INFO L195 NwaCegarLoop]: trace histogram [6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2023-12-02 14:35:51,866 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c54d012-2dc3-49ba-a13d-c90e65ffec40/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2023-12-02 14:35:52,061 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c54d012-2dc3-49ba-a13d-c90e65ffec40/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2023-12-02 14:35:52,061 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 14:35:52,062 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 14:35:52,062 INFO L85 PathProgramCache]: Analyzing trace with hash 1926184818, now seen corresponding path program 1 times [2023-12-02 14:35:52,062 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 14:35:52,062 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [595264013] [2023-12-02 14:35:52,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 14:35:52,062 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 14:35:52,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 14:35:52,900 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2023-12-02 14:35:52,900 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 14:35:52,900 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [595264013] [2023-12-02 14:35:52,901 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [595264013] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 14:35:52,901 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 14:35:52,901 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-02 14:35:52,901 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1757165130] [2023-12-02 14:35:52,901 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 14:35:52,902 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-02 14:35:52,902 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 14:35:52,902 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-02 14:35:52,902 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-02 14:35:52,903 INFO L87 Difference]: Start difference. First operand 373 states and 467 transitions. Second operand has 6 states, 5 states have (on average 5.2) internal successors, (26), 5 states have internal predecessors, (26), 3 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2023-12-02 14:35:53,918 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 14:35:53,918 INFO L93 Difference]: Finished difference Result 387 states and 480 transitions. [2023-12-02 14:35:53,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-02 14:35:53,919 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.2) internal successors, (26), 5 states have internal predecessors, (26), 3 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 76 [2023-12-02 14:35:53,919 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 14:35:53,921 INFO L225 Difference]: With dead ends: 387 [2023-12-02 14:35:53,922 INFO L226 Difference]: Without dead ends: 385 [2023-12-02 14:35:53,922 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-12-02 14:35:53,923 INFO L413 NwaCegarLoop]: 46 mSDtfsCounter, 6 mSDsluCounter, 161 mSDsCounter, 0 mSdLazyCounter, 74 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 207 SdHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 74 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-02 14:35:53,923 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 207 Invalid, 76 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 74 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-02 14:35:53,924 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 385 states. [2023-12-02 14:35:54,058 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 385 to 385. [2023-12-02 14:35:54,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 385 states, 263 states have (on average 1.1596958174904943) internal successors, (305), 275 states have internal predecessors, (305), 75 states have call successors, (75), 36 states have call predecessors, (75), 46 states have return successors, (96), 73 states have call predecessors, (96), 71 states have call successors, (96) [2023-12-02 14:35:54,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 385 states to 385 states and 476 transitions. [2023-12-02 14:35:54,061 INFO L78 Accepts]: Start accepts. Automaton has 385 states and 476 transitions. Word has length 76 [2023-12-02 14:35:54,061 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 14:35:54,061 INFO L495 AbstractCegarLoop]: Abstraction has 385 states and 476 transitions. [2023-12-02 14:35:54,061 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.2) internal successors, (26), 5 states have internal predecessors, (26), 3 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2023-12-02 14:35:54,061 INFO L276 IsEmpty]: Start isEmpty. Operand 385 states and 476 transitions. [2023-12-02 14:35:54,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2023-12-02 14:35:54,063 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 14:35:54,063 INFO L195 NwaCegarLoop]: trace histogram [6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 14:35:54,063 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-12-02 14:35:54,063 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 14:35:54,063 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 14:35:54,064 INFO L85 PathProgramCache]: Analyzing trace with hash -624828252, now seen corresponding path program 1 times [2023-12-02 14:35:54,064 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 14:35:54,064 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1369714738] [2023-12-02 14:35:54,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 14:35:54,064 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 14:35:54,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 14:35:55,324 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2023-12-02 14:35:55,324 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 14:35:55,324 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1369714738] [2023-12-02 14:35:55,324 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1369714738] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 14:35:55,324 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 14:35:55,324 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-02 14:35:55,325 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [106270919] [2023-12-02 14:35:55,325 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 14:35:55,325 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-02 14:35:55,325 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 14:35:55,326 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-02 14:35:55,326 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-12-02 14:35:55,326 INFO L87 Difference]: Start difference. First operand 385 states and 476 transitions. Second operand has 8 states, 7 states have (on average 3.857142857142857) internal successors, (27), 7 states have internal predecessors, (27), 5 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) [2023-12-02 14:35:56,484 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 14:35:56,484 INFO L93 Difference]: Finished difference Result 399 states and 489 transitions. [2023-12-02 14:35:56,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-02 14:35:56,485 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.857142857142857) internal successors, (27), 7 states have internal predecessors, (27), 5 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) Word has length 82 [2023-12-02 14:35:56,485 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 14:35:56,487 INFO L225 Difference]: With dead ends: 399 [2023-12-02 14:35:56,487 INFO L226 Difference]: Without dead ends: 395 [2023-12-02 14:35:56,488 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2023-12-02 14:35:56,488 INFO L413 NwaCegarLoop]: 45 mSDtfsCounter, 6 mSDsluCounter, 231 mSDsCounter, 0 mSdLazyCounter, 110 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 276 SdHoareTripleChecker+Invalid, 110 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 110 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-12-02 14:35:56,488 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 276 Invalid, 110 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 110 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-12-02 14:35:56,489 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 395 states. [2023-12-02 14:35:56,633 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 395 to 392. [2023-12-02 14:35:56,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 392 states, 269 states have (on average 1.1524163568773234) internal successors, (310), 281 states have internal predecessors, (310), 74 states have call successors, (74), 38 states have call predecessors, (74), 48 states have return successors, (96), 72 states have call predecessors, (96), 71 states have call successors, (96) [2023-12-02 14:35:56,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 392 states to 392 states and 480 transitions. [2023-12-02 14:35:56,636 INFO L78 Accepts]: Start accepts. Automaton has 392 states and 480 transitions. Word has length 82 [2023-12-02 14:35:56,636 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 14:35:56,636 INFO L495 AbstractCegarLoop]: Abstraction has 392 states and 480 transitions. [2023-12-02 14:35:56,636 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.857142857142857) internal successors, (27), 7 states have internal predecessors, (27), 5 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) [2023-12-02 14:35:56,637 INFO L276 IsEmpty]: Start isEmpty. Operand 392 states and 480 transitions. [2023-12-02 14:35:56,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2023-12-02 14:35:56,638 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 14:35:56,638 INFO L195 NwaCegarLoop]: trace histogram [8, 6, 6, 6, 6, 6, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 14:35:56,639 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-12-02 14:35:56,639 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 14:35:56,639 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 14:35:56,639 INFO L85 PathProgramCache]: Analyzing trace with hash -292482995, now seen corresponding path program 2 times [2023-12-02 14:35:56,639 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 14:35:56,639 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1354020215] [2023-12-02 14:35:56,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 14:35:56,640 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 14:35:56,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 14:35:59,504 INFO L134 CoverageAnalysis]: Checked inductivity of 138 backedges. 40 proven. 6 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2023-12-02 14:35:59,505 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 14:35:59,505 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1354020215] [2023-12-02 14:35:59,505 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1354020215] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 14:35:59,505 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1051903292] [2023-12-02 14:35:59,505 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-12-02 14:35:59,505 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 14:35:59,506 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c54d012-2dc3-49ba-a13d-c90e65ffec40/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 14:35:59,506 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c54d012-2dc3-49ba-a13d-c90e65ffec40/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 14:35:59,507 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c54d012-2dc3-49ba-a13d-c90e65ffec40/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2023-12-02 14:35:59,744 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2023-12-02 14:35:59,744 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-02 14:35:59,746 INFO L262 TraceCheckSpWp]: Trace formula consists of 192 conjuncts, 50 conjunts are in the unsatisfiable core [2023-12-02 14:35:59,750 INFO L285 TraceCheckSpWp]: Computing forward predicates...