./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_priority_queue_s_sift_either_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_34fdd451-f5b3-4758-b185-6e76616a395a/bin/utaipan-verify-DbMuA5NWw2/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34fdd451-f5b3-4758-b185-6e76616a395a/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_34fdd451-f5b3-4758-b185-6e76616a395a/bin/utaipan-verify-DbMuA5NWw2/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34fdd451-f5b3-4758-b185-6e76616a395a/bin/utaipan-verify-DbMuA5NWw2/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_priority_queue_s_sift_either_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34fdd451-f5b3-4758-b185-6e76616a395a/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_34fdd451-f5b3-4758-b185-6e76616a395a/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 3b33a1dc558667a4fcb18529533ebc713d63e8618dba1b7e6d3f152565826fd1 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4fc63b2 [2024-11-02 12:36:54,357 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-02 12:36:54,450 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34fdd451-f5b3-4758-b185-6e76616a395a/bin/utaipan-verify-DbMuA5NWw2/config/svcomp-Reach-64bit-Taipan_Default.epf [2024-11-02 12:36:54,458 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-02 12:36:54,459 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-02 12:36:54,491 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-02 12:36:54,492 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-02 12:36:54,492 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-02 12:36:54,493 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-02 12:36:54,493 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-02 12:36:54,494 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-02 12:36:54,494 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-02 12:36:54,495 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-02 12:36:54,495 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-02 12:36:54,496 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-02 12:36:54,497 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-02 12:36:54,499 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-02 12:36:54,502 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-02 12:36:54,502 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-02 12:36:54,503 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-02 12:36:54,503 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-02 12:36:54,503 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-02 12:36:54,504 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-02 12:36:54,504 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-02 12:36:54,505 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-02 12:36:54,505 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-02 12:36:54,505 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-02 12:36:54,506 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-02 12:36:54,506 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-02 12:36:54,506 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-02 12:36:54,506 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-02 12:36:54,507 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-02 12:36:54,510 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-02 12:36:54,511 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-02 12:36:54,511 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-02 12:36:54,511 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-02 12:36:54,511 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-02 12:36:54,512 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-02 12:36:54,512 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-02 12:36:54,512 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-02 12:36:54,512 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-02 12:36:54,513 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-02 12:36:54,513 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-02 12:36:54,513 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-02 12:36:54,514 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_34fdd451-f5b3-4758-b185-6e76616a395a/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34fdd451-f5b3-4758-b185-6e76616a395a/bin/utaipan-verify-DbMuA5NWw2 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3b33a1dc558667a4fcb18529533ebc713d63e8618dba1b7e6d3f152565826fd1 [2024-11-02 12:36:54,812 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-02 12:36:54,838 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-02 12:36:54,843 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-02 12:36:54,844 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-02 12:36:54,844 INFO L274 PluginConnector]: CDTParser initialized [2024-11-02 12:36:54,845 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34fdd451-f5b3-4758-b185-6e76616a395a/bin/utaipan-verify-DbMuA5NWw2/../../sv-benchmarks/c/aws-c-common/aws_priority_queue_s_sift_either_harness.i Unable to find full path for "g++" [2024-11-02 12:36:56,852 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-02 12:36:57,391 INFO L384 CDTParser]: Found 1 translation units. [2024-11-02 12:36:57,394 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34fdd451-f5b3-4758-b185-6e76616a395a/sv-benchmarks/c/aws-c-common/aws_priority_queue_s_sift_either_harness.i [2024-11-02 12:36:57,434 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34fdd451-f5b3-4758-b185-6e76616a395a/bin/utaipan-verify-DbMuA5NWw2/data/ba0067991/b507b8339e374db5a14b0cbe71c04c86/FLAG32811fa29 [2024-11-02 12:36:57,455 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34fdd451-f5b3-4758-b185-6e76616a395a/bin/utaipan-verify-DbMuA5NWw2/data/ba0067991/b507b8339e374db5a14b0cbe71c04c86 [2024-11-02 12:36:57,457 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-02 12:36:57,458 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-02 12:36:57,460 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-02 12:36:57,460 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-02 12:36:57,465 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-02 12:36:57,466 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 12:36:57" (1/1) ... [2024-11-02 12:36:57,467 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7a362297 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:36:57, skipping insertion in model container [2024-11-02 12:36:57,468 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 12:36:57" (1/1) ... [2024-11-02 12:36:57,600 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-02 12:36:57,936 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_34fdd451-f5b3-4758-b185-6e76616a395a/sv-benchmarks/c/aws-c-common/aws_priority_queue_s_sift_either_harness.i[4506,4519] [2024-11-02 12:36:57,946 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_34fdd451-f5b3-4758-b185-6e76616a395a/sv-benchmarks/c/aws-c-common/aws_priority_queue_s_sift_either_harness.i[4566,4579] [2024-11-02 12:36:59,083 WARN L1657 CHandler]: Possible shadowing of function index [2024-11-02 12:36:59,084 WARN L1657 CHandler]: Possible shadowing of function index [2024-11-02 12:36:59,085 WARN L1657 CHandler]: Possible shadowing of function index [2024-11-02 12:36:59,086 WARN L1657 CHandler]: Possible shadowing of function index [2024-11-02 12:36:59,087 WARN L1657 CHandler]: Possible shadowing of function index [2024-11-02 12:36:59,103 WARN L1657 CHandler]: Possible shadowing of function index [2024-11-02 12:36:59,104 WARN L1657 CHandler]: Possible shadowing of function index [2024-11-02 12:36:59,107 WARN L1657 CHandler]: Possible shadowing of function index [2024-11-02 12:36:59,108 WARN L1657 CHandler]: Possible shadowing of function index [2024-11-02 12:36:59,112 WARN L1657 CHandler]: Possible shadowing of function index [2024-11-02 12:36:59,114 WARN L1657 CHandler]: Possible shadowing of function index [2024-11-02 12:36:59,115 WARN L1657 CHandler]: Possible shadowing of function index [2024-11-02 12:36:59,115 WARN L1657 CHandler]: Possible shadowing of function index [2024-11-02 12:36:59,937 WARN L1657 CHandler]: Possible shadowing of function index [2024-11-02 12:36:59,937 WARN L1657 CHandler]: Possible shadowing of function index [2024-11-02 12:36:59,944 WARN L1657 CHandler]: Possible shadowing of function index [2024-11-02 12:36:59,952 WARN L1657 CHandler]: Possible shadowing of function index [2024-11-02 12:37:00,048 WARN L1657 CHandler]: Possible shadowing of function index [2024-11-02 12:37:00,049 WARN L1657 CHandler]: Possible shadowing of function index [2024-11-02 12:37:00,050 WARN L1657 CHandler]: Possible shadowing of function index [2024-11-02 12:37:00,050 WARN L1657 CHandler]: Possible shadowing of function index [2024-11-02 12:37:00,051 WARN L1657 CHandler]: Possible shadowing of function index [2024-11-02 12:37:00,053 WARN L1657 CHandler]: Possible shadowing of function index [2024-11-02 12:37:00,054 WARN L1657 CHandler]: Possible shadowing of function index [2024-11-02 12:37:00,055 WARN L1657 CHandler]: Possible shadowing of function index [2024-11-02 12:37:00,055 WARN L1657 CHandler]: Possible shadowing of function index [2024-11-02 12:37:00,056 WARN L1657 CHandler]: Possible shadowing of function index [2024-11-02 12:37:00,056 WARN L1657 CHandler]: Possible shadowing of function index [2024-11-02 12:37:00,056 WARN L1657 CHandler]: Possible shadowing of function index [2024-11-02 12:37:00,057 WARN L1657 CHandler]: Possible shadowing of function index [2024-11-02 12:37:00,061 WARN L1657 CHandler]: Possible shadowing of function index [2024-11-02 12:37:00,062 WARN L1657 CHandler]: Possible shadowing of function index [2024-11-02 12:37:00,063 WARN L1657 CHandler]: Possible shadowing of function index [2024-11-02 12:37:00,063 WARN L1657 CHandler]: Possible shadowing of function index [2024-11-02 12:37:00,069 WARN L1657 CHandler]: Possible shadowing of function index [2024-11-02 12:37:00,072 WARN L1657 CHandler]: Possible shadowing of function index [2024-11-02 12:37:00,085 WARN L1657 CHandler]: Possible shadowing of function index [2024-11-02 12:37:00,086 WARN L1657 CHandler]: Possible shadowing of function index [2024-11-02 12:37:00,090 WARN L1657 CHandler]: Possible shadowing of function index [2024-11-02 12:37:00,119 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-02 12:37:00,175 INFO L200 MainTranslator]: Completed pre-run [2024-11-02 12:37:00,198 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_34fdd451-f5b3-4758-b185-6e76616a395a/sv-benchmarks/c/aws-c-common/aws_priority_queue_s_sift_either_harness.i[4506,4519] [2024-11-02 12:37:00,199 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_34fdd451-f5b3-4758-b185-6e76616a395a/sv-benchmarks/c/aws-c-common/aws_priority_queue_s_sift_either_harness.i[4566,4579] [2024-11-02 12:37:00,261 WARN L1657 CHandler]: Possible shadowing of function index [2024-11-02 12:37:00,263 WARN L1657 CHandler]: Possible shadowing of function index [2024-11-02 12:37:00,264 WARN L1657 CHandler]: Possible shadowing of function index [2024-11-02 12:37:00,264 WARN L1657 CHandler]: Possible shadowing of function index [2024-11-02 12:37:00,265 WARN L1657 CHandler]: Possible shadowing of function index [2024-11-02 12:37:00,277 WARN L1657 CHandler]: Possible shadowing of function index [2024-11-02 12:37:00,278 WARN L1657 CHandler]: Possible shadowing of function index [2024-11-02 12:37:00,279 WARN L1657 CHandler]: Possible shadowing of function index [2024-11-02 12:37:00,280 WARN L1657 CHandler]: Possible shadowing of function index [2024-11-02 12:37:00,282 WARN L1657 CHandler]: Possible shadowing of function index [2024-11-02 12:37:00,283 WARN L1657 CHandler]: Possible shadowing of function index [2024-11-02 12:37:00,283 WARN L1657 CHandler]: Possible shadowing of function index [2024-11-02 12:37:00,284 WARN L1657 CHandler]: Possible shadowing of function index [2024-11-02 12:37:00,423 WARN L1657 CHandler]: Possible shadowing of function index [2024-11-02 12:37:00,424 WARN L1657 CHandler]: Possible shadowing of function index [2024-11-02 12:37:00,427 WARN L1657 CHandler]: Possible shadowing of function index [2024-11-02 12:37:00,432 WARN L1657 CHandler]: Possible shadowing of function index [2024-11-02 12:37:00,440 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [7776-7787] [2024-11-02 12:37:00,466 WARN L1657 CHandler]: Possible shadowing of function index [2024-11-02 12:37:00,467 WARN L1657 CHandler]: Possible shadowing of function index [2024-11-02 12:37:00,468 WARN L1657 CHandler]: Possible shadowing of function index [2024-11-02 12:37:00,468 WARN L1657 CHandler]: Possible shadowing of function index [2024-11-02 12:37:00,469 WARN L1657 CHandler]: Possible shadowing of function index [2024-11-02 12:37:00,469 WARN L1657 CHandler]: Possible shadowing of function index [2024-11-02 12:37:00,470 WARN L1657 CHandler]: Possible shadowing of function index [2024-11-02 12:37:00,470 WARN L1657 CHandler]: Possible shadowing of function index [2024-11-02 12:37:00,471 WARN L1657 CHandler]: Possible shadowing of function index [2024-11-02 12:37:00,471 WARN L1657 CHandler]: Possible shadowing of function index [2024-11-02 12:37:00,471 WARN L1657 CHandler]: Possible shadowing of function index [2024-11-02 12:37:00,472 WARN L1657 CHandler]: Possible shadowing of function index [2024-11-02 12:37:00,472 WARN L1657 CHandler]: Possible shadowing of function index [2024-11-02 12:37:00,473 WARN L1657 CHandler]: Possible shadowing of function index [2024-11-02 12:37:00,473 WARN L1657 CHandler]: Possible shadowing of function index [2024-11-02 12:37:00,473 WARN L1657 CHandler]: Possible shadowing of function index [2024-11-02 12:37:00,474 WARN L1657 CHandler]: Possible shadowing of function index [2024-11-02 12:37:00,477 WARN L1657 CHandler]: Possible shadowing of function index [2024-11-02 12:37:00,477 WARN L1657 CHandler]: Possible shadowing of function index [2024-11-02 12:37:00,487 WARN L1657 CHandler]: Possible shadowing of function index [2024-11-02 12:37:00,492 WARN L1657 CHandler]: Possible shadowing of function index [2024-11-02 12:37:00,492 WARN L1657 CHandler]: Possible shadowing of function index [2024-11-02 12:37:00,504 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-02 12:37:00,747 INFO L204 MainTranslator]: Completed translation [2024-11-02 12:37:00,748 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:37:00 WrapperNode [2024-11-02 12:37:00,748 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-02 12:37:00,749 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-02 12:37:00,749 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-02 12:37:00,750 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-02 12:37:00,757 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:37:00" (1/1) ... [2024-11-02 12:37:00,853 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:37:00" (1/1) ... [2024-11-02 12:37:00,938 INFO L138 Inliner]: procedures = 686, calls = 1900, calls flagged for inlining = 59, calls inlined = 15, statements flattened = 955 [2024-11-02 12:37:00,938 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-02 12:37:00,939 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-02 12:37:00,939 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-02 12:37:00,939 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-02 12:37:00,962 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:37:00" (1/1) ... [2024-11-02 12:37:00,962 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:37:00" (1/1) ... [2024-11-02 12:37:00,976 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:37:00" (1/1) ... [2024-11-02 12:37:00,976 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:37:00" (1/1) ... [2024-11-02 12:37:01,018 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:37:00" (1/1) ... [2024-11-02 12:37:01,023 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:37:00" (1/1) ... [2024-11-02 12:37:01,068 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:37:00" (1/1) ... [2024-11-02 12:37:01,076 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:37:00" (1/1) ... [2024-11-02 12:37:01,099 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-02 12:37:01,104 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-02 12:37:01,104 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-02 12:37:01,104 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-02 12:37:01,105 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:37:00" (1/1) ... [2024-11-02 12:37:01,118 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-02 12:37:01,133 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34fdd451-f5b3-4758-b185-6e76616a395a/bin/utaipan-verify-DbMuA5NWw2/z3 [2024-11-02 12:37:01,154 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34fdd451-f5b3-4758-b185-6e76616a395a/bin/utaipan-verify-DbMuA5NWw2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-02 12:37:01,156 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34fdd451-f5b3-4758-b185-6e76616a395a/bin/utaipan-verify-DbMuA5NWw2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-02 12:37:01,189 INFO L130 BoogieDeclarations]: Found specification of procedure s_sift_either [2024-11-02 12:37:01,189 INFO L138 BoogieDeclarations]: Found implementation of procedure s_sift_either [2024-11-02 12:37:01,189 INFO L130 BoogieDeclarations]: Found specification of procedure s_swap [2024-11-02 12:37:01,189 INFO L138 BoogieDeclarations]: Found implementation of procedure s_swap [2024-11-02 12:37:01,189 INFO L130 BoogieDeclarations]: Found specification of procedure aws_is_mem_zeroed [2024-11-02 12:37:01,190 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_is_mem_zeroed [2024-11-02 12:37:01,190 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-02 12:37:01,190 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_bounded [2024-11-02 12:37:01,190 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_bounded [2024-11-02 12:37:01,190 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_valid [2024-11-02 12:37:01,190 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_valid [2024-11-02 12:37:01,190 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2024-11-02 12:37:01,190 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2024-11-02 12:37:01,191 INFO L130 BoogieDeclarations]: Found specification of procedure s_sift_up [2024-11-02 12:37:01,191 INFO L138 BoogieDeclarations]: Found implementation of procedure s_sift_up [2024-11-02 12:37:01,191 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2024-11-02 12:37:01,191 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-02 12:37:01,191 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2024-11-02 12:37:01,191 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2024-11-02 12:37:01,191 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-02 12:37:01,192 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-02 12:37:01,192 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-02 12:37:01,192 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-02 12:37:01,192 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2024-11-02 12:37:01,192 INFO L130 BoogieDeclarations]: Found specification of procedure my_abort [2024-11-02 12:37:01,192 INFO L138 BoogieDeclarations]: Found implementation of procedure my_abort [2024-11-02 12:37:01,192 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_impl [2024-11-02 12:37:01,192 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_impl [2024-11-02 12:37:01,193 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-02 12:37:01,193 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-02 12:37:01,193 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2024-11-02 12:37:01,193 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2024-11-02 12:37:01,193 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_size_t [2024-11-02 12:37:01,193 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_size_t [2024-11-02 12:37:01,193 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2024-11-02 12:37:01,193 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2024-11-02 12:37:01,194 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2024-11-02 12:37:01,194 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_malloc [2024-11-02 12:37:01,194 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_malloc [2024-11-02 12:37:01,194 INFO L130 BoogieDeclarations]: Found specification of procedure aws_priority_queue_is_valid [2024-11-02 12:37:01,194 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_priority_queue_is_valid [2024-11-02 12:37:01,194 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_length [2024-11-02 12:37:01,194 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_length [2024-11-02 12:37:01,195 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-02 12:37:01,195 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-02 12:37:01,195 INFO L130 BoogieDeclarations]: Found specification of procedure my_memcpy [2024-11-02 12:37:01,195 INFO L138 BoogieDeclarations]: Found implementation of procedure my_memcpy [2024-11-02 12:37:01,195 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-02 12:37:01,195 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2024-11-02 12:37:01,195 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2024-11-02 12:37:01,195 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_get_at_ptr [2024-11-02 12:37:01,196 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_get_at_ptr [2024-11-02 12:37:01,196 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2024-11-02 12:37:01,196 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2024-11-02 12:37:01,196 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2024-11-02 12:37:01,196 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2024-11-02 12:37:01,196 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-02 12:37:01,196 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_array_list_has_allocated_data_member [2024-11-02 12:37:01,196 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_array_list_has_allocated_data_member [2024-11-02 12:37:01,197 INFO L130 BoogieDeclarations]: Found specification of procedure aws_priority_queue_backpointer_index_valid [2024-11-02 12:37:01,197 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_priority_queue_backpointer_index_valid [2024-11-02 12:37:01,197 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2024-11-02 12:37:01,197 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2024-11-02 12:37:01,197 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-02 12:37:01,643 INFO L238 CfgBuilder]: Building ICFG [2024-11-02 12:37:01,648 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-02 12:37:06,240 INFO L? ?]: Removed 218 outVars from TransFormulas that were not future-live. [2024-11-02 12:37:06,240 INFO L287 CfgBuilder]: Performing block encoding [2024-11-02 12:37:06,744 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-02 12:37:06,745 INFO L316 CfgBuilder]: Removed 6 assume(true) statements. [2024-11-02 12:37:06,745 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 12:37:06 BoogieIcfgContainer [2024-11-02 12:37:06,746 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-02 12:37:06,749 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-02 12:37:06,749 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-02 12:37:06,757 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-02 12:37:06,757 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 12:36:57" (1/3) ... [2024-11-02 12:37:06,759 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@714fbe16 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 12:37:06, skipping insertion in model container [2024-11-02 12:37:06,759 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:37:00" (2/3) ... [2024-11-02 12:37:06,759 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@714fbe16 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 12:37:06, skipping insertion in model container [2024-11-02 12:37:06,760 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 12:37:06" (3/3) ... [2024-11-02 12:37:06,761 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_priority_queue_s_sift_either_harness.i [2024-11-02 12:37:06,785 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-02 12:37:06,785 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-02 12:37:06,873 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-02 12:37:06,881 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;@2e05a113, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-02 12:37:06,882 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-02 12:37:06,890 INFO L276 IsEmpty]: Start isEmpty. Operand has 307 states, 159 states have (on average 1.2138364779874213) internal successors, (193), 162 states have internal predecessors, (193), 120 states have call successors, (120), 25 states have call predecessors, (120), 25 states have return successors, (120), 120 states have call predecessors, (120), 120 states have call successors, (120) [2024-11-02 12:37:06,910 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-11-02 12:37:06,910 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 12:37:06,911 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, 1] [2024-11-02 12:37:06,912 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-02 12:37:06,918 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 12:37:06,918 INFO L85 PathProgramCache]: Analyzing trace with hash 778783714, now seen corresponding path program 1 times [2024-11-02 12:37:06,931 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 12:37:06,932 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [625766673] [2024-11-02 12:37:06,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:37:06,933 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 12:37:15,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 12:37:17,176 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 12:37:17,177 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-02 12:37:17,178 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [625766673] [2024-11-02 12:37:17,178 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [625766673] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-02 12:37:17,179 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [913755700] [2024-11-02 12:37:17,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:37:17,180 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-02 12:37:17,180 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34fdd451-f5b3-4758-b185-6e76616a395a/bin/utaipan-verify-DbMuA5NWw2/z3 [2024-11-02 12:37:17,183 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34fdd451-f5b3-4758-b185-6e76616a395a/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-02 12:37:17,185 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34fdd451-f5b3-4758-b185-6e76616a395a/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-02 12:37:27,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 12:37:27,414 INFO L255 TraceCheckSpWp]: Trace formula consists of 4303 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-02 12:37:27,426 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-02 12:37:27,574 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2024-11-02 12:37:27,577 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-02 12:37:27,577 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [913755700] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-02 12:37:27,578 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-02 12:37:27,578 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2024-11-02 12:37:27,581 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [638319533] [2024-11-02 12:37:27,582 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 12:37:27,587 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-02 12:37:27,589 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-02 12:37:27,621 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-02 12:37:27,622 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-02 12:37:27,626 INFO L87 Difference]: Start difference. First operand has 307 states, 159 states have (on average 1.2138364779874213) internal successors, (193), 162 states have internal predecessors, (193), 120 states have call successors, (120), 25 states have call predecessors, (120), 25 states have return successors, (120), 120 states have call predecessors, (120), 120 states have call successors, (120) Second operand has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21)