./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_priority_queue_s_sift_up_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4fc63b2a Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19198fbc-fbc8-43a1-a4b2-bd1ada45bc0b/bin/utaipan-verify-DbMuA5NWw2/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19198fbc-fbc8-43a1-a4b2-bd1ada45bc0b/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_19198fbc-fbc8-43a1-a4b2-bd1ada45bc0b/bin/utaipan-verify-DbMuA5NWw2/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19198fbc-fbc8-43a1-a4b2-bd1ada45bc0b/bin/utaipan-verify-DbMuA5NWw2/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_priority_queue_s_sift_up_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19198fbc-fbc8-43a1-a4b2-bd1ada45bc0b/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_19198fbc-fbc8-43a1-a4b2-bd1ada45bc0b/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 9f01133064e8d36e68b9f85134d72a09d965175ad33f2003b7d0ebb14c50d01e --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4fc63b2 [2024-11-02 12:24:55,300 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-02 12:24:55,404 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19198fbc-fbc8-43a1-a4b2-bd1ada45bc0b/bin/utaipan-verify-DbMuA5NWw2/config/svcomp-Reach-64bit-Taipan_Default.epf [2024-11-02 12:24:55,414 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-02 12:24:55,416 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-02 12:24:55,456 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-02 12:24:55,457 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-02 12:24:55,458 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-02 12:24:55,459 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-02 12:24:55,460 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-02 12:24:55,460 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-02 12:24:55,461 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-02 12:24:55,463 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-02 12:24:55,463 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-02 12:24:55,463 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-02 12:24:55,464 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-02 12:24:55,468 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-02 12:24:55,469 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-02 12:24:55,469 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-02 12:24:55,470 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-02 12:24:55,470 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-02 12:24:55,471 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-02 12:24:55,472 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-02 12:24:55,472 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-02 12:24:55,473 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-02 12:24:55,473 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-02 12:24:55,473 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-02 12:24:55,474 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-02 12:24:55,474 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-02 12:24:55,474 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-02 12:24:55,476 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-02 12:24:55,476 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-02 12:24:55,476 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-02 12:24:55,477 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-02 12:24:55,477 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-02 12:24:55,477 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-02 12:24:55,478 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-02 12:24:55,478 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-02 12:24:55,478 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-02 12:24:55,479 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-02 12:24:55,479 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-02 12:24:55,479 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-02 12:24:55,479 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-02 12:24:55,480 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-02 12:24:55,480 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_19198fbc-fbc8-43a1-a4b2-bd1ada45bc0b/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19198fbc-fbc8-43a1-a4b2-bd1ada45bc0b/bin/utaipan-verify-DbMuA5NWw2 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9f01133064e8d36e68b9f85134d72a09d965175ad33f2003b7d0ebb14c50d01e [2024-11-02 12:24:55,758 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-02 12:24:55,801 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-02 12:24:55,807 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-02 12:24:55,808 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-02 12:24:55,808 INFO L274 PluginConnector]: CDTParser initialized [2024-11-02 12:24:55,810 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19198fbc-fbc8-43a1-a4b2-bd1ada45bc0b/bin/utaipan-verify-DbMuA5NWw2/../../sv-benchmarks/c/aws-c-common/aws_priority_queue_s_sift_up_harness.i Unable to find full path for "g++" [2024-11-02 12:24:58,119 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-02 12:24:58,586 INFO L384 CDTParser]: Found 1 translation units. [2024-11-02 12:24:58,586 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19198fbc-fbc8-43a1-a4b2-bd1ada45bc0b/sv-benchmarks/c/aws-c-common/aws_priority_queue_s_sift_up_harness.i [2024-11-02 12:24:58,632 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19198fbc-fbc8-43a1-a4b2-bd1ada45bc0b/bin/utaipan-verify-DbMuA5NWw2/data/afb9d5f7b/3c3a0e3cd617448aa82e8c3eb2c658e2/FLAGe9ef70152 [2024-11-02 12:24:58,651 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19198fbc-fbc8-43a1-a4b2-bd1ada45bc0b/bin/utaipan-verify-DbMuA5NWw2/data/afb9d5f7b/3c3a0e3cd617448aa82e8c3eb2c658e2 [2024-11-02 12:24:58,654 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-02 12:24:58,656 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-02 12:24:58,658 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-02 12:24:58,659 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-02 12:24:58,664 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-02 12:24:58,667 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 12:24:58" (1/1) ... [2024-11-02 12:24:58,668 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2183c41a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:24:58, skipping insertion in model container [2024-11-02 12:24:58,669 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 12:24:58" (1/1) ... [2024-11-02 12:24:58,794 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-02 12:24:59,214 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_19198fbc-fbc8-43a1-a4b2-bd1ada45bc0b/sv-benchmarks/c/aws-c-common/aws_priority_queue_s_sift_up_harness.i[4502,4515] [2024-11-02 12:24:59,223 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_19198fbc-fbc8-43a1-a4b2-bd1ada45bc0b/sv-benchmarks/c/aws-c-common/aws_priority_queue_s_sift_up_harness.i[4562,4575] [2024-11-02 12:25:00,398 WARN L1657 CHandler]: Possible shadowing of function index [2024-11-02 12:25:00,399 WARN L1657 CHandler]: Possible shadowing of function index [2024-11-02 12:25:00,399 WARN L1657 CHandler]: Possible shadowing of function index [2024-11-02 12:25:00,400 WARN L1657 CHandler]: Possible shadowing of function index [2024-11-02 12:25:00,402 WARN L1657 CHandler]: Possible shadowing of function index [2024-11-02 12:25:00,418 WARN L1657 CHandler]: Possible shadowing of function index [2024-11-02 12:25:00,419 WARN L1657 CHandler]: Possible shadowing of function index [2024-11-02 12:25:00,421 WARN L1657 CHandler]: Possible shadowing of function index [2024-11-02 12:25:00,422 WARN L1657 CHandler]: Possible shadowing of function index [2024-11-02 12:25:00,424 WARN L1657 CHandler]: Possible shadowing of function index [2024-11-02 12:25:00,425 WARN L1657 CHandler]: Possible shadowing of function index [2024-11-02 12:25:00,426 WARN L1657 CHandler]: Possible shadowing of function index [2024-11-02 12:25:00,427 WARN L1657 CHandler]: Possible shadowing of function index [2024-11-02 12:25:01,407 WARN L1657 CHandler]: Possible shadowing of function index [2024-11-02 12:25:01,408 WARN L1657 CHandler]: Possible shadowing of function index [2024-11-02 12:25:01,414 WARN L1657 CHandler]: Possible shadowing of function index [2024-11-02 12:25:01,422 WARN L1657 CHandler]: Possible shadowing of function index [2024-11-02 12:25:01,530 WARN L1657 CHandler]: Possible shadowing of function index [2024-11-02 12:25:01,531 WARN L1657 CHandler]: Possible shadowing of function index [2024-11-02 12:25:01,531 WARN L1657 CHandler]: Possible shadowing of function index [2024-11-02 12:25:01,531 WARN L1657 CHandler]: Possible shadowing of function index [2024-11-02 12:25:01,532 WARN L1657 CHandler]: Possible shadowing of function index [2024-11-02 12:25:01,532 WARN L1657 CHandler]: Possible shadowing of function index [2024-11-02 12:25:01,533 WARN L1657 CHandler]: Possible shadowing of function index [2024-11-02 12:25:01,534 WARN L1657 CHandler]: Possible shadowing of function index [2024-11-02 12:25:01,535 WARN L1657 CHandler]: Possible shadowing of function index [2024-11-02 12:25:01,535 WARN L1657 CHandler]: Possible shadowing of function index [2024-11-02 12:25:01,535 WARN L1657 CHandler]: Possible shadowing of function index [2024-11-02 12:25:01,536 WARN L1657 CHandler]: Possible shadowing of function index [2024-11-02 12:25:01,536 WARN L1657 CHandler]: Possible shadowing of function index [2024-11-02 12:25:01,540 WARN L1657 CHandler]: Possible shadowing of function index [2024-11-02 12:25:01,540 WARN L1657 CHandler]: Possible shadowing of function index [2024-11-02 12:25:01,540 WARN L1657 CHandler]: Possible shadowing of function index [2024-11-02 12:25:01,541 WARN L1657 CHandler]: Possible shadowing of function index [2024-11-02 12:25:01,545 WARN L1657 CHandler]: Possible shadowing of function index [2024-11-02 12:25:01,545 WARN L1657 CHandler]: Possible shadowing of function index [2024-11-02 12:25:01,553 WARN L1657 CHandler]: Possible shadowing of function index [2024-11-02 12:25:01,554 WARN L1657 CHandler]: Possible shadowing of function index [2024-11-02 12:25:01,555 WARN L1657 CHandler]: Possible shadowing of function index [2024-11-02 12:25:01,570 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-02 12:25:01,613 INFO L200 MainTranslator]: Completed pre-run [2024-11-02 12:25:01,637 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_19198fbc-fbc8-43a1-a4b2-bd1ada45bc0b/sv-benchmarks/c/aws-c-common/aws_priority_queue_s_sift_up_harness.i[4502,4515] [2024-11-02 12:25:01,638 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_19198fbc-fbc8-43a1-a4b2-bd1ada45bc0b/sv-benchmarks/c/aws-c-common/aws_priority_queue_s_sift_up_harness.i[4562,4575] [2024-11-02 12:25:01,691 WARN L1657 CHandler]: Possible shadowing of function index [2024-11-02 12:25:01,692 WARN L1657 CHandler]: Possible shadowing of function index [2024-11-02 12:25:01,692 WARN L1657 CHandler]: Possible shadowing of function index [2024-11-02 12:25:01,693 WARN L1657 CHandler]: Possible shadowing of function index [2024-11-02 12:25:01,693 WARN L1657 CHandler]: Possible shadowing of function index [2024-11-02 12:25:01,704 WARN L1657 CHandler]: Possible shadowing of function index [2024-11-02 12:25:01,708 WARN L1657 CHandler]: Possible shadowing of function index [2024-11-02 12:25:01,710 WARN L1657 CHandler]: Possible shadowing of function index [2024-11-02 12:25:01,710 WARN L1657 CHandler]: Possible shadowing of function index [2024-11-02 12:25:01,711 WARN L1657 CHandler]: Possible shadowing of function index [2024-11-02 12:25:01,713 WARN L1657 CHandler]: Possible shadowing of function index [2024-11-02 12:25:01,713 WARN L1657 CHandler]: Possible shadowing of function index [2024-11-02 12:25:01,714 WARN L1657 CHandler]: Possible shadowing of function index [2024-11-02 12:25:01,844 WARN L1657 CHandler]: Possible shadowing of function index [2024-11-02 12:25:01,846 WARN L1657 CHandler]: Possible shadowing of function index [2024-11-02 12:25:01,847 WARN L1657 CHandler]: Possible shadowing of function index [2024-11-02 12:25:01,852 WARN L1657 CHandler]: Possible shadowing of function index [2024-11-02 12:25:01,860 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [7776-7787] [2024-11-02 12:25:01,886 WARN L1657 CHandler]: Possible shadowing of function index [2024-11-02 12:25:01,888 WARN L1657 CHandler]: Possible shadowing of function index [2024-11-02 12:25:01,888 WARN L1657 CHandler]: Possible shadowing of function index [2024-11-02 12:25:01,889 WARN L1657 CHandler]: Possible shadowing of function index [2024-11-02 12:25:01,889 WARN L1657 CHandler]: Possible shadowing of function index [2024-11-02 12:25:01,889 WARN L1657 CHandler]: Possible shadowing of function index [2024-11-02 12:25:01,890 WARN L1657 CHandler]: Possible shadowing of function index [2024-11-02 12:25:01,890 WARN L1657 CHandler]: Possible shadowing of function index [2024-11-02 12:25:01,891 WARN L1657 CHandler]: Possible shadowing of function index [2024-11-02 12:25:01,891 WARN L1657 CHandler]: Possible shadowing of function index [2024-11-02 12:25:01,891 WARN L1657 CHandler]: Possible shadowing of function index [2024-11-02 12:25:01,892 WARN L1657 CHandler]: Possible shadowing of function index [2024-11-02 12:25:01,893 WARN L1657 CHandler]: Possible shadowing of function index [2024-11-02 12:25:01,894 WARN L1657 CHandler]: Possible shadowing of function index [2024-11-02 12:25:01,894 WARN L1657 CHandler]: Possible shadowing of function index [2024-11-02 12:25:01,894 WARN L1657 CHandler]: Possible shadowing of function index [2024-11-02 12:25:01,895 WARN L1657 CHandler]: Possible shadowing of function index [2024-11-02 12:25:01,897 WARN L1657 CHandler]: Possible shadowing of function index [2024-11-02 12:25:01,898 WARN L1657 CHandler]: Possible shadowing of function index [2024-11-02 12:25:01,908 WARN L1657 CHandler]: Possible shadowing of function index [2024-11-02 12:25:01,909 WARN L1657 CHandler]: Possible shadowing of function index [2024-11-02 12:25:01,909 WARN L1657 CHandler]: Possible shadowing of function index [2024-11-02 12:25:01,927 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-02 12:25:02,245 INFO L204 MainTranslator]: Completed translation [2024-11-02 12:25:02,246 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:25:02 WrapperNode [2024-11-02 12:25:02,246 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-02 12:25:02,247 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-02 12:25:02,247 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-02 12:25:02,247 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-02 12:25:02,257 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:25:02" (1/1) ... [2024-11-02 12:25:02,366 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:25:02" (1/1) ... [2024-11-02 12:25:02,479 INFO L138 Inliner]: procedures = 686, calls = 1900, calls flagged for inlining = 60, calls inlined = 14, statements flattened = 850 [2024-11-02 12:25:02,479 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-02 12:25:02,480 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-02 12:25:02,481 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-02 12:25:02,481 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-02 12:25:02,492 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:25:02" (1/1) ... [2024-11-02 12:25:02,492 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:25:02" (1/1) ... [2024-11-02 12:25:02,507 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:25:02" (1/1) ... [2024-11-02 12:25:02,511 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:25:02" (1/1) ... [2024-11-02 12:25:02,602 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:25:02" (1/1) ... [2024-11-02 12:25:02,607 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:25:02" (1/1) ... [2024-11-02 12:25:02,621 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:25:02" (1/1) ... [2024-11-02 12:25:02,631 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:25:02" (1/1) ... [2024-11-02 12:25:02,650 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-02 12:25:02,654 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-02 12:25:02,654 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-02 12:25:02,654 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-02 12:25:02,656 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:25:02" (1/1) ... [2024-11-02 12:25:02,666 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-02 12:25:02,685 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19198fbc-fbc8-43a1-a4b2-bd1ada45bc0b/bin/utaipan-verify-DbMuA5NWw2/z3 [2024-11-02 12:25:02,707 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19198fbc-fbc8-43a1-a4b2-bd1ada45bc0b/bin/utaipan-verify-DbMuA5NWw2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-02 12:25:02,725 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19198fbc-fbc8-43a1-a4b2-bd1ada45bc0b/bin/utaipan-verify-DbMuA5NWw2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-02 12:25:02,753 INFO L130 BoogieDeclarations]: Found specification of procedure s_swap [2024-11-02 12:25:02,754 INFO L138 BoogieDeclarations]: Found implementation of procedure s_swap [2024-11-02 12:25:02,754 INFO L130 BoogieDeclarations]: Found specification of procedure aws_is_mem_zeroed [2024-11-02 12:25:02,754 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_is_mem_zeroed [2024-11-02 12:25:02,754 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-02 12:25:02,755 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_bounded [2024-11-02 12:25:02,755 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_bounded [2024-11-02 12:25:02,755 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_valid [2024-11-02 12:25:02,756 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_valid [2024-11-02 12:25:02,756 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2024-11-02 12:25:02,756 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2024-11-02 12:25:02,756 INFO L130 BoogieDeclarations]: Found specification of procedure s_sift_up [2024-11-02 12:25:02,756 INFO L138 BoogieDeclarations]: Found implementation of procedure s_sift_up [2024-11-02 12:25:02,757 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2024-11-02 12:25:02,757 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-02 12:25:02,757 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2024-11-02 12:25:02,758 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2024-11-02 12:25:02,758 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-02 12:25:02,758 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-02 12:25:02,759 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-02 12:25:02,759 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-02 12:25:02,759 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2024-11-02 12:25:02,760 INFO L130 BoogieDeclarations]: Found specification of procedure my_abort [2024-11-02 12:25:02,760 INFO L138 BoogieDeclarations]: Found implementation of procedure my_abort [2024-11-02 12:25:02,760 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_impl [2024-11-02 12:25:02,760 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_impl [2024-11-02 12:25:02,760 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-02 12:25:02,761 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-02 12:25:02,761 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2024-11-02 12:25:02,761 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2024-11-02 12:25:02,762 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_size_t [2024-11-02 12:25:02,762 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_size_t [2024-11-02 12:25:02,762 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2024-11-02 12:25:02,762 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2024-11-02 12:25:02,762 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2024-11-02 12:25:02,763 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_malloc [2024-11-02 12:25:02,763 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_malloc [2024-11-02 12:25:02,763 INFO L130 BoogieDeclarations]: Found specification of procedure aws_priority_queue_is_valid [2024-11-02 12:25:02,763 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_priority_queue_is_valid [2024-11-02 12:25:02,763 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_length [2024-11-02 12:25:02,763 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_length [2024-11-02 12:25:02,764 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-02 12:25:02,764 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-02 12:25:02,764 INFO L130 BoogieDeclarations]: Found specification of procedure my_memcpy [2024-11-02 12:25:02,764 INFO L138 BoogieDeclarations]: Found implementation of procedure my_memcpy [2024-11-02 12:25:02,765 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-02 12:25:02,765 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2024-11-02 12:25:02,765 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2024-11-02 12:25:02,765 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_get_at_ptr [2024-11-02 12:25:02,765 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_get_at_ptr [2024-11-02 12:25:02,766 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2024-11-02 12:25:02,766 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2024-11-02 12:25:02,766 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2024-11-02 12:25:02,766 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2024-11-02 12:25:02,766 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-02 12:25:02,766 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_array_list_has_allocated_data_member [2024-11-02 12:25:02,767 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_array_list_has_allocated_data_member [2024-11-02 12:25:02,767 INFO L130 BoogieDeclarations]: Found specification of procedure aws_priority_queue_backpointer_index_valid [2024-11-02 12:25:02,768 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_priority_queue_backpointer_index_valid [2024-11-02 12:25:02,768 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2024-11-02 12:25:02,768 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2024-11-02 12:25:02,768 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-02 12:25:03,212 INFO L238 CfgBuilder]: Building ICFG [2024-11-02 12:25:03,215 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-02 12:25:07,869 INFO L? ?]: Removed 197 outVars from TransFormulas that were not future-live. [2024-11-02 12:25:07,869 INFO L287 CfgBuilder]: Performing block encoding [2024-11-02 12:25:08,329 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-02 12:25:08,329 INFO L316 CfgBuilder]: Removed 5 assume(true) statements. [2024-11-02 12:25:08,331 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 12:25:08 BoogieIcfgContainer [2024-11-02 12:25:08,331 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-02 12:25:08,334 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-02 12:25:08,335 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-02 12:25:08,340 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-02 12:25:08,341 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 12:24:58" (1/3) ... [2024-11-02 12:25:08,343 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d6ea0ae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 12:25:08, skipping insertion in model container [2024-11-02 12:25:08,344 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:25:02" (2/3) ... [2024-11-02 12:25:08,344 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d6ea0ae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 12:25:08, skipping insertion in model container [2024-11-02 12:25:08,345 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 12:25:08" (3/3) ... [2024-11-02 12:25:08,347 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_priority_queue_s_sift_up_harness.i [2024-11-02 12:25:08,367 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-02 12:25:08,367 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-02 12:25:08,457 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-02 12:25:08,463 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;@6c891a3c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-02 12:25:08,463 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-02 12:25:08,468 INFO L276 IsEmpty]: Start isEmpty. Operand has 269 states, 140 states have (on average 1.207142857142857) internal successors, (169), 143 states have internal predecessors, (169), 102 states have call successors, (102), 24 states have call predecessors, (102), 24 states have return successors, (102), 102 states have call predecessors, (102), 102 states have call successors, (102) [2024-11-02 12:25:08,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-11-02 12:25:08,483 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 12:25:08,484 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 3, 3, 3, 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] [2024-11-02 12:25:08,484 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-02 12:25:08,490 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 12:25:08,490 INFO L85 PathProgramCache]: Analyzing trace with hash 1370039893, now seen corresponding path program 1 times [2024-11-02 12:25:08,502 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 12:25:08,502 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2085105862] [2024-11-02 12:25:08,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:25:08,503 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 12:25:17,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 12:25:19,031 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 102 trivial. 0 not checked. [2024-11-02 12:25:19,033 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-02 12:25:19,034 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2085105862] [2024-11-02 12:25:19,036 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2085105862] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-02 12:25:19,037 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [204718633] [2024-11-02 12:25:19,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:25:19,041 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-02 12:25:19,042 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19198fbc-fbc8-43a1-a4b2-bd1ada45bc0b/bin/utaipan-verify-DbMuA5NWw2/z3 [2024-11-02 12:25:19,043 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19198fbc-fbc8-43a1-a4b2-bd1ada45bc0b/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-02 12:25:19,056 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19198fbc-fbc8-43a1-a4b2-bd1ada45bc0b/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-02 12:25:27,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 12:25:27,923 INFO L255 TraceCheckSpWp]: Trace formula consists of 4328 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-02 12:25:27,939 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-02 12:25:28,452 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2024-11-02 12:25:28,453 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-02 12:25:28,453 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [204718633] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-02 12:25:28,453 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-02 12:25:28,454 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 8 [2024-11-02 12:25:28,458 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [177992527] [2024-11-02 12:25:28,459 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 12:25:28,464 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-02 12:25:28,464 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-02 12:25:28,498 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-02 12:25:28,498 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-11-02 12:25:28,503 INFO L87 Difference]: Start difference. First operand has 269 states, 140 states have (on average 1.207142857142857) internal successors, (169), 143 states have internal predecessors, (169), 102 states have call successors, (102), 24 states have call predecessors, (102), 24 states have return successors, (102), 102 states have call predecessors, (102), 102 states have call successors, (102) Second operand has 5 states, 5 states have (on average 7.8) internal successors, (39), 5 states have internal predecessors, (39), 3 states have call successors, (23), 2 states have call predecessors, (23), 3 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21)