./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_priority_queue_pop_harness_negated.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4fc63b2a 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_74bedff4-8416-4859-a49e-420601793e33/bin/utaipan-verify-DbMuA5NWw2/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74bedff4-8416-4859-a49e-420601793e33/bin/utaipan-verify-DbMuA5NWw2/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74bedff4-8416-4859-a49e-420601793e33/bin/utaipan-verify-DbMuA5NWw2/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74bedff4-8416-4859-a49e-420601793e33/bin/utaipan-verify-DbMuA5NWw2/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_priority_queue_pop_harness_negated.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74bedff4-8416-4859-a49e-420601793e33/bin/utaipan-verify-DbMuA5NWw2/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74bedff4-8416-4859-a49e-420601793e33/bin/utaipan-verify-DbMuA5NWw2 --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 c5ce5ecaf845e6855240a1053cf9bb98448187512cca05d9c176538088e49244 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4fc63b2 [2024-11-02 12:34:55,750 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-02 12:34:55,830 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74bedff4-8416-4859-a49e-420601793e33/bin/utaipan-verify-DbMuA5NWw2/config/svcomp-Reach-64bit-Taipan_Default.epf [2024-11-02 12:34:55,835 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-02 12:34:55,835 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-02 12:34:55,858 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-02 12:34:55,858 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-02 12:34:55,858 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-02 12:34:55,859 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-02 12:34:55,859 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-02 12:34:55,862 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-02 12:34:55,862 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-02 12:34:55,863 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-02 12:34:55,865 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-02 12:34:55,865 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-02 12:34:55,866 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-02 12:34:55,866 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-02 12:34:55,866 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-02 12:34:55,866 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-02 12:34:55,870 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-02 12:34:55,871 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-02 12:34:55,871 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-02 12:34:55,872 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-02 12:34:55,872 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-02 12:34:55,872 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-02 12:34:55,872 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-02 12:34:55,873 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-02 12:34:55,873 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-02 12:34:55,873 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-02 12:34:55,873 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-02 12:34:55,874 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-02 12:34:55,874 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-02 12:34:55,874 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-02 12:34:55,874 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-02 12:34:55,874 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-02 12:34:55,875 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-02 12:34:55,877 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-02 12:34:55,878 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-02 12:34:55,878 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-02 12:34:55,878 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-02 12:34:55,878 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-02 12:34:55,879 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-02 12:34:55,879 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-02 12:34:55,879 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-02 12:34:55,880 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_74bedff4-8416-4859-a49e-420601793e33/bin/utaipan-verify-DbMuA5NWw2/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74bedff4-8416-4859-a49e-420601793e33/bin/utaipan-verify-DbMuA5NWw2 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c5ce5ecaf845e6855240a1053cf9bb98448187512cca05d9c176538088e49244 [2024-11-02 12:34:56,186 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-02 12:34:56,223 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-02 12:34:56,226 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-02 12:34:56,228 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-02 12:34:56,228 INFO L274 PluginConnector]: CDTParser initialized [2024-11-02 12:34:56,230 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74bedff4-8416-4859-a49e-420601793e33/bin/utaipan-verify-DbMuA5NWw2/../../sv-benchmarks/c/aws-c-common/aws_priority_queue_pop_harness_negated.i Unable to find full path for "g++" [2024-11-02 12:34:58,337 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-02 12:34:58,823 INFO L384 CDTParser]: Found 1 translation units. [2024-11-02 12:34:58,826 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74bedff4-8416-4859-a49e-420601793e33/sv-benchmarks/c/aws-c-common/aws_priority_queue_pop_harness_negated.i [2024-11-02 12:34:58,865 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74bedff4-8416-4859-a49e-420601793e33/bin/utaipan-verify-DbMuA5NWw2/data/363e13d22/636c801212f548e9a5b54b4ac32e7adc/FLAGa0bfab6fd [2024-11-02 12:34:58,886 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74bedff4-8416-4859-a49e-420601793e33/bin/utaipan-verify-DbMuA5NWw2/data/363e13d22/636c801212f548e9a5b54b4ac32e7adc [2024-11-02 12:34:58,889 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-02 12:34:58,893 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-02 12:34:58,899 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-02 12:34:58,900 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-02 12:34:58,909 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-02 12:34:58,914 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 12:34:58" (1/1) ... [2024-11-02 12:34:58,918 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@21e51cd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:34:58, skipping insertion in model container [2024-11-02 12:34:58,919 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 12:34:58" (1/1) ... [2024-11-02 12:34:59,029 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-02 12:34:59,375 WARN L251 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_74bedff4-8416-4859-a49e-420601793e33/sv-benchmarks/c/aws-c-common/aws_priority_queue_pop_harness_negated.i[4496,4509] [2024-11-02 12:34:59,385 WARN L251 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_74bedff4-8416-4859-a49e-420601793e33/sv-benchmarks/c/aws-c-common/aws_priority_queue_pop_harness_negated.i[4556,4569] [2024-11-02 12:35:00,452 WARN L1657 CHandler]: Possible shadowing of function index [2024-11-02 12:35:00,457 WARN L1657 CHandler]: Possible shadowing of function index [2024-11-02 12:35:00,457 WARN L1657 CHandler]: Possible shadowing of function index [2024-11-02 12:35:00,458 WARN L1657 CHandler]: Possible shadowing of function index [2024-11-02 12:35:00,460 WARN L1657 CHandler]: Possible shadowing of function index [2024-11-02 12:35:00,484 WARN L1657 CHandler]: Possible shadowing of function index [2024-11-02 12:35:00,485 WARN L1657 CHandler]: Possible shadowing of function index [2024-11-02 12:35:00,487 WARN L1657 CHandler]: Possible shadowing of function index [2024-11-02 12:35:00,488 WARN L1657 CHandler]: Possible shadowing of function index [2024-11-02 12:35:00,491 WARN L1657 CHandler]: Possible shadowing of function index [2024-11-02 12:35:00,492 WARN L1657 CHandler]: Possible shadowing of function index [2024-11-02 12:35:00,493 WARN L1657 CHandler]: Possible shadowing of function index [2024-11-02 12:35:00,494 WARN L1657 CHandler]: Possible shadowing of function index [2024-11-02 12:35:01,328 WARN L1657 CHandler]: Possible shadowing of function index [2024-11-02 12:35:01,350 WARN L1657 CHandler]: Possible shadowing of function index [2024-11-02 12:35:01,441 WARN L1657 CHandler]: Possible shadowing of function index [2024-11-02 12:35:01,442 WARN L1657 CHandler]: Possible shadowing of function index [2024-11-02 12:35:01,442 WARN L1657 CHandler]: Possible shadowing of function index [2024-11-02 12:35:01,443 WARN L1657 CHandler]: Possible shadowing of function index [2024-11-02 12:35:01,443 WARN L1657 CHandler]: Possible shadowing of function index [2024-11-02 12:35:01,444 WARN L1657 CHandler]: Possible shadowing of function index [2024-11-02 12:35:01,445 WARN L1657 CHandler]: Possible shadowing of function index [2024-11-02 12:35:01,447 WARN L1657 CHandler]: Possible shadowing of function index [2024-11-02 12:35:01,447 WARN L1657 CHandler]: Possible shadowing of function index [2024-11-02 12:35:01,448 WARN L1657 CHandler]: Possible shadowing of function index [2024-11-02 12:35:01,448 WARN L1657 CHandler]: Possible shadowing of function index [2024-11-02 12:35:01,449 WARN L1657 CHandler]: Possible shadowing of function index [2024-11-02 12:35:01,450 WARN L1657 CHandler]: Possible shadowing of function index [2024-11-02 12:35:01,453 WARN L1657 CHandler]: Possible shadowing of function index [2024-11-02 12:35:01,454 WARN L1657 CHandler]: Possible shadowing of function index [2024-11-02 12:35:01,455 WARN L1657 CHandler]: Possible shadowing of function index [2024-11-02 12:35:01,456 WARN L1657 CHandler]: Possible shadowing of function index [2024-11-02 12:35:01,464 WARN L1657 CHandler]: Possible shadowing of function index [2024-11-02 12:35:01,464 WARN L1657 CHandler]: Possible shadowing of function index [2024-11-02 12:35:01,480 WARN L1657 CHandler]: Possible shadowing of function index [2024-11-02 12:35:01,481 WARN L1657 CHandler]: Possible shadowing of function index [2024-11-02 12:35:01,482 WARN L1657 CHandler]: Possible shadowing of function index [2024-11-02 12:35:01,503 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-02 12:35:01,546 INFO L200 MainTranslator]: Completed pre-run [2024-11-02 12:35:01,564 WARN L251 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_74bedff4-8416-4859-a49e-420601793e33/sv-benchmarks/c/aws-c-common/aws_priority_queue_pop_harness_negated.i[4496,4509] [2024-11-02 12:35:01,564 WARN L251 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_74bedff4-8416-4859-a49e-420601793e33/sv-benchmarks/c/aws-c-common/aws_priority_queue_pop_harness_negated.i[4556,4569] [2024-11-02 12:35:01,617 WARN L1657 CHandler]: Possible shadowing of function index [2024-11-02 12:35:01,618 WARN L1657 CHandler]: Possible shadowing of function index [2024-11-02 12:35:01,618 WARN L1657 CHandler]: Possible shadowing of function index [2024-11-02 12:35:01,619 WARN L1657 CHandler]: Possible shadowing of function index [2024-11-02 12:35:01,620 WARN L1657 CHandler]: Possible shadowing of function index [2024-11-02 12:35:01,635 WARN L1657 CHandler]: Possible shadowing of function index [2024-11-02 12:35:01,636 WARN L1657 CHandler]: Possible shadowing of function index [2024-11-02 12:35:01,637 WARN L1657 CHandler]: Possible shadowing of function index [2024-11-02 12:35:01,638 WARN L1657 CHandler]: Possible shadowing of function index [2024-11-02 12:35:01,639 WARN L1657 CHandler]: Possible shadowing of function index [2024-11-02 12:35:01,640 WARN L1657 CHandler]: Possible shadowing of function index [2024-11-02 12:35:01,641 WARN L1657 CHandler]: Possible shadowing of function index [2024-11-02 12:35:01,642 WARN L1657 CHandler]: Possible shadowing of function index [2024-11-02 12:35:01,782 WARN L1657 CHandler]: Possible shadowing of function index [2024-11-02 12:35:01,789 WARN L1657 CHandler]: Possible shadowing of function index [2024-11-02 12:35:01,797 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [7739-7750] [2024-11-02 12:35:01,889 WARN L1657 CHandler]: Possible shadowing of function index [2024-11-02 12:35:01,890 WARN L1657 CHandler]: Possible shadowing of function index [2024-11-02 12:35:01,891 WARN L1657 CHandler]: Possible shadowing of function index [2024-11-02 12:35:01,892 WARN L1657 CHandler]: Possible shadowing of function index [2024-11-02 12:35:01,894 WARN L1657 CHandler]: Possible shadowing of function index [2024-11-02 12:35:01,894 WARN L1657 CHandler]: Possible shadowing of function index [2024-11-02 12:35:01,895 WARN L1657 CHandler]: Possible shadowing of function index [2024-11-02 12:35:01,895 WARN L1657 CHandler]: Possible shadowing of function index [2024-11-02 12:35:01,896 WARN L1657 CHandler]: Possible shadowing of function index [2024-11-02 12:35:01,897 WARN L1657 CHandler]: Possible shadowing of function index [2024-11-02 12:35:01,897 WARN L1657 CHandler]: Possible shadowing of function index [2024-11-02 12:35:01,897 WARN L1657 CHandler]: Possible shadowing of function index [2024-11-02 12:35:01,898 WARN L1657 CHandler]: Possible shadowing of function index [2024-11-02 12:35:01,899 WARN L1657 CHandler]: Possible shadowing of function index [2024-11-02 12:35:01,899 WARN L1657 CHandler]: Possible shadowing of function index [2024-11-02 12:35:01,899 WARN L1657 CHandler]: Possible shadowing of function index [2024-11-02 12:35:01,901 WARN L1657 CHandler]: Possible shadowing of function index [2024-11-02 12:35:01,903 WARN L1657 CHandler]: Possible shadowing of function index [2024-11-02 12:35:01,904 WARN L1657 CHandler]: Possible shadowing of function index [2024-11-02 12:35:01,912 WARN L1657 CHandler]: Possible shadowing of function index [2024-11-02 12:35:01,913 WARN L1657 CHandler]: Possible shadowing of function index [2024-11-02 12:35:01,914 WARN L1657 CHandler]: Possible shadowing of function index [2024-11-02 12:35:01,929 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-02 12:35:02,175 INFO L204 MainTranslator]: Completed translation [2024-11-02 12:35:02,176 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:35:02 WrapperNode [2024-11-02 12:35:02,176 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-02 12:35:02,178 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-02 12:35:02,178 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-02 12:35:02,178 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-02 12:35:02,186 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:35:02" (1/1) ... [2024-11-02 12:35:02,293 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:35:02" (1/1) ... [2024-11-02 12:35:02,378 INFO L138 Inliner]: procedures = 686, calls = 1930, calls flagged for inlining = 59, calls inlined = 15, statements flattened = 1062 [2024-11-02 12:35:02,378 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-02 12:35:02,379 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-02 12:35:02,379 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-02 12:35:02,379 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-02 12:35:02,389 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:35:02" (1/1) ... [2024-11-02 12:35:02,390 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:35:02" (1/1) ... [2024-11-02 12:35:02,401 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:35:02" (1/1) ... [2024-11-02 12:35:02,402 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:35:02" (1/1) ... [2024-11-02 12:35:02,447 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:35:02" (1/1) ... [2024-11-02 12:35:02,457 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:35:02" (1/1) ... [2024-11-02 12:35:02,474 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:35:02" (1/1) ... [2024-11-02 12:35:02,486 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:35:02" (1/1) ... [2024-11-02 12:35:02,506 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-02 12:35:02,506 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-02 12:35:02,506 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-02 12:35:02,507 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-02 12:35:02,511 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:35:02" (1/1) ... [2024-11-02 12:35:02,520 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-02 12:35:02,532 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74bedff4-8416-4859-a49e-420601793e33/bin/utaipan-verify-DbMuA5NWw2/z3 [2024-11-02 12:35:02,554 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74bedff4-8416-4859-a49e-420601793e33/bin/utaipan-verify-DbMuA5NWw2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-02 12:35:02,558 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74bedff4-8416-4859-a49e-420601793e33/bin/utaipan-verify-DbMuA5NWw2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-02 12:35:02,592 INFO L130 BoogieDeclarations]: Found specification of procedure s_swap [2024-11-02 12:35:02,592 INFO L138 BoogieDeclarations]: Found implementation of procedure s_swap [2024-11-02 12:35:02,592 INFO L130 BoogieDeclarations]: Found specification of procedure aws_is_mem_zeroed [2024-11-02 12:35:02,592 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_is_mem_zeroed [2024-11-02 12:35:02,592 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-02 12:35:02,593 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_bounded [2024-11-02 12:35:02,593 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_bounded [2024-11-02 12:35:02,593 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_valid [2024-11-02 12:35:02,593 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_valid [2024-11-02 12:35:02,593 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2024-11-02 12:35:02,593 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2024-11-02 12:35:02,593 INFO L130 BoogieDeclarations]: Found specification of procedure s_sift_up [2024-11-02 12:35:02,594 INFO L138 BoogieDeclarations]: Found implementation of procedure s_sift_up [2024-11-02 12:35:02,594 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2024-11-02 12:35:02,594 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-02 12:35:02,594 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2024-11-02 12:35:02,595 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2024-11-02 12:35:02,595 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-02 12:35:02,595 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-02 12:35:02,596 INFO L130 BoogieDeclarations]: Found specification of procedure s_remove_node [2024-11-02 12:35:02,596 INFO L138 BoogieDeclarations]: Found implementation of procedure s_remove_node [2024-11-02 12:35:02,596 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-02 12:35:02,596 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-02 12:35:02,596 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2024-11-02 12:35:02,596 INFO L130 BoogieDeclarations]: Found specification of procedure my_abort [2024-11-02 12:35:02,597 INFO L138 BoogieDeclarations]: Found implementation of procedure my_abort [2024-11-02 12:35:02,597 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_impl [2024-11-02 12:35:02,597 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_impl [2024-11-02 12:35:02,597 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-02 12:35:02,597 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-02 12:35:02,597 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2024-11-02 12:35:02,598 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2024-11-02 12:35:02,598 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_size_t [2024-11-02 12:35:02,598 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_size_t [2024-11-02 12:35:02,598 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2024-11-02 12:35:02,599 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2024-11-02 12:35:02,599 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2024-11-02 12:35:02,599 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_malloc [2024-11-02 12:35:02,599 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_malloc [2024-11-02 12:35:02,599 INFO L130 BoogieDeclarations]: Found specification of procedure aws_priority_queue_is_valid [2024-11-02 12:35:02,599 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_priority_queue_is_valid [2024-11-02 12:35:02,600 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_length [2024-11-02 12:35:02,600 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_length [2024-11-02 12:35:02,600 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2024-11-02 12:35:02,600 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2024-11-02 12:35:02,600 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-02 12:35:02,600 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-02 12:35:02,600 INFO L130 BoogieDeclarations]: Found specification of procedure my_memcpy [2024-11-02 12:35:02,600 INFO L138 BoogieDeclarations]: Found implementation of procedure my_memcpy [2024-11-02 12:35:02,600 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_pop_back [2024-11-02 12:35:02,601 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_pop_back [2024-11-02 12:35:02,601 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-02 12:35:02,601 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2024-11-02 12:35:02,601 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2024-11-02 12:35:02,601 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_get_at_ptr [2024-11-02 12:35:02,601 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_get_at_ptr [2024-11-02 12:35:02,601 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2024-11-02 12:35:02,601 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2024-11-02 12:35:02,601 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2024-11-02 12:35:02,601 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2024-11-02 12:35:02,602 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-02 12:35:02,602 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_array_list_has_allocated_data_member [2024-11-02 12:35:02,602 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_array_list_has_allocated_data_member [2024-11-02 12:35:02,602 INFO L130 BoogieDeclarations]: Found specification of procedure aws_priority_queue_backpointer_index_valid [2024-11-02 12:35:02,602 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_priority_queue_backpointer_index_valid [2024-11-02 12:35:02,602 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2024-11-02 12:35:02,602 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2024-11-02 12:35:02,602 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-02 12:35:02,602 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_get_at [2024-11-02 12:35:02,602 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_get_at [2024-11-02 12:35:03,088 INFO L238 CfgBuilder]: Building ICFG [2024-11-02 12:35:03,094 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-02 12:35:07,940 INFO L? ?]: Removed 243 outVars from TransFormulas that were not future-live. [2024-11-02 12:35:07,941 INFO L287 CfgBuilder]: Performing block encoding [2024-11-02 12:35:08,533 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-02 12:35:08,533 INFO L316 CfgBuilder]: Removed 6 assume(true) statements. [2024-11-02 12:35:08,534 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 12:35:08 BoogieIcfgContainer [2024-11-02 12:35:08,534 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-02 12:35:08,536 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-02 12:35:08,536 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-02 12:35:08,543 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-02 12:35:08,543 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 12:34:58" (1/3) ... [2024-11-02 12:35:08,544 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d130909 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 12:35:08, skipping insertion in model container [2024-11-02 12:35:08,544 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:35:02" (2/3) ... [2024-11-02 12:35:08,544 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d130909 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 12:35:08, skipping insertion in model container [2024-11-02 12:35:08,544 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 12:35:08" (3/3) ... [2024-11-02 12:35:08,546 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_priority_queue_pop_harness_negated.i [2024-11-02 12:35:08,565 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-02 12:35:08,565 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-02 12:35:08,665 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-02 12:35:08,674 INFO L333 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, 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;@68a8b353, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-02 12:35:08,674 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-02 12:35:08,685 INFO L276 IsEmpty]: Start isEmpty. Operand has 392 states, 200 states have (on average 1.2) internal successors, (240), 203 states have internal predecessors, (240), 162 states have call successors, (162), 28 states have call predecessors, (162), 28 states have return successors, (162), 162 states have call predecessors, (162), 162 states have call successors, (162) [2024-11-02 12:35:08,705 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2024-11-02 12:35:08,705 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 12:35:08,706 INFO L215 NwaCegarLoop]: trace histogram [9, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-02 12:35:08,706 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-02 12:35:08,713 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 12:35:08,713 INFO L85 PathProgramCache]: Analyzing trace with hash 1751445662, now seen corresponding path program 1 times [2024-11-02 12:35:08,724 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 12:35:08,725 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [660868173] [2024-11-02 12:35:08,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:35:08,726 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 12:35:16,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 12:35:18,679 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 119 trivial. 0 not checked. [2024-11-02 12:35:18,679 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-02 12:35:18,681 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [660868173] [2024-11-02 12:35:18,682 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [660868173] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-02 12:35:18,682 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1883455066] [2024-11-02 12:35:18,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:35:18,683 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-02 12:35:18,683 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74bedff4-8416-4859-a49e-420601793e33/bin/utaipan-verify-DbMuA5NWw2/z3 [2024-11-02 12:35:18,686 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74bedff4-8416-4859-a49e-420601793e33/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-02 12:35:18,689 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74bedff4-8416-4859-a49e-420601793e33/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-02 12:35:27,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 12:35:27,299 INFO L255 TraceCheckSpWp]: Trace formula consists of 4433 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-02 12:35:27,312 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-02 12:35:27,761 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 40 proven. 0 refuted. 0 times theorem prover too weak. 82 trivial. 0 not checked. [2024-11-02 12:35:27,761 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-02 12:35:27,762 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1883455066] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-02 12:35:27,762 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-02 12:35:27,762 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 8 [2024-11-02 12:35:27,764 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1682581074] [2024-11-02 12:35:27,765 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 12:35:27,774 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-02 12:35:27,774 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-02 12:35:27,802 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-02 12:35:27,803 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-11-02 12:35:27,807 INFO L87 Difference]: Start difference. First operand has 392 states, 200 states have (on average 1.2) internal successors, (240), 203 states have internal predecessors, (240), 162 states have call successors, (162), 28 states have call predecessors, (162), 28 states have return successors, (162), 162 states have call predecessors, (162), 162 states have call successors, (162) Second operand has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 3 states have call successors, (27), 2 states have call predecessors, (27), 3 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) [2024-11-02 12:35:29,906 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers []