./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 826ab2ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed842c3a-a8c6-4be2-bb6a-87fc50f92419/bin/utaipan-verify-sOmjnqqW8E/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed842c3a-a8c6-4be2-bb6a-87fc50f92419/bin/utaipan-verify-sOmjnqqW8E/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed842c3a-a8c6-4be2-bb6a-87fc50f92419/bin/utaipan-verify-sOmjnqqW8E/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed842c3a-a8c6-4be2-bb6a-87fc50f92419/bin/utaipan-verify-sOmjnqqW8E/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_ed842c3a-a8c6-4be2-bb6a-87fc50f92419/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed842c3a-a8c6-4be2-bb6a-87fc50f92419/bin/utaipan-verify-sOmjnqqW8E --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 0.3.0-dev-826ab2b [2024-11-14 03:44:07,046 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-14 03:44:07,161 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed842c3a-a8c6-4be2-bb6a-87fc50f92419/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Reach-64bit-Taipan_Default.epf [2024-11-14 03:44:07,171 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-14 03:44:07,171 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-14 03:44:07,217 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-14 03:44:07,219 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-14 03:44:07,220 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-14 03:44:07,221 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-14 03:44:07,221 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-14 03:44:07,223 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-14 03:44:07,223 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-14 03:44:07,223 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-14 03:44:07,223 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-14 03:44:07,223 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-14 03:44:07,223 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-14 03:44:07,224 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-14 03:44:07,224 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-14 03:44:07,224 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-14 03:44:07,224 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-14 03:44:07,225 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-14 03:44:07,225 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-14 03:44:07,226 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-14 03:44:07,226 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-14 03:44:07,226 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-14 03:44:07,227 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-14 03:44:07,227 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-14 03:44:07,227 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-14 03:44:07,227 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-14 03:44:07,227 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-14 03:44:07,228 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-14 03:44:07,228 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-14 03:44:07,228 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-14 03:44:07,228 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-14 03:44:07,228 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-14 03:44:07,228 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 03:44:07,229 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-14 03:44:07,229 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-14 03:44:07,229 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-14 03:44:07,229 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-14 03:44:07,229 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-14 03:44:07,230 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-14 03:44:07,230 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-14 03:44:07,231 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-14 03:44:07,231 INFO L153 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_ed842c3a-a8c6-4be2-bb6a-87fc50f92419/bin/utaipan-verify-sOmjnqqW8E 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 [2024-11-14 03:44:07,653 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-14 03:44:07,664 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-14 03:44:07,667 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-14 03:44:07,669 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-14 03:44:07,669 INFO L274 PluginConnector]: CDTParser initialized [2024-11-14 03:44:07,671 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed842c3a-a8c6-4be2-bb6a-87fc50f92419/bin/utaipan-verify-sOmjnqqW8E/../../sv-benchmarks/c/aws-c-common/aws_priority_queue_s_sift_up_harness.i Unable to find full path for "g++" [2024-11-14 03:44:10,033 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-14 03:44:10,824 INFO L384 CDTParser]: Found 1 translation units. [2024-11-14 03:44:10,824 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed842c3a-a8c6-4be2-bb6a-87fc50f92419/sv-benchmarks/c/aws-c-common/aws_priority_queue_s_sift_up_harness.i [2024-11-14 03:44:10,879 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed842c3a-a8c6-4be2-bb6a-87fc50f92419/bin/utaipan-verify-sOmjnqqW8E/data/909e41683/e34a5cb98b514cee9f975bf35780376d/FLAG760eba6c6 [2024-11-14 03:44:10,903 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed842c3a-a8c6-4be2-bb6a-87fc50f92419/bin/utaipan-verify-sOmjnqqW8E/data/909e41683/e34a5cb98b514cee9f975bf35780376d [2024-11-14 03:44:10,905 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-14 03:44:10,908 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-14 03:44:10,910 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-14 03:44:10,910 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-14 03:44:10,916 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-14 03:44:10,917 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 03:44:10" (1/1) ... [2024-11-14 03:44:10,920 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@30e35eb4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:44:10, skipping insertion in model container [2024-11-14 03:44:10,921 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 03:44:10" (1/1) ... [2024-11-14 03:44:11,067 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-14 03:44:11,408 WARN L250 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_ed842c3a-a8c6-4be2-bb6a-87fc50f92419/sv-benchmarks/c/aws-c-common/aws_priority_queue_s_sift_up_harness.i[4502,4515] [2024-11-14 03:44:11,417 WARN L250 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_ed842c3a-a8c6-4be2-bb6a-87fc50f92419/sv-benchmarks/c/aws-c-common/aws_priority_queue_s_sift_up_harness.i[4562,4575] [2024-11-14 03:44:12,540 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 03:44:12,543 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 03:44:12,543 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 03:44:12,544 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 03:44:12,546 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 03:44:12,564 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 03:44:12,565 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 03:44:12,567 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 03:44:12,568 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 03:44:12,570 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 03:44:12,573 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 03:44:12,574 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 03:44:12,574 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 03:44:13,465 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 03:44:13,466 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 03:44:13,477 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 03:44:13,485 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 03:44:13,619 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 03:44:13,620 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 03:44:13,620 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 03:44:13,621 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 03:44:13,621 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 03:44:13,622 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 03:44:13,622 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 03:44:13,624 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 03:44:13,624 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 03:44:13,625 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 03:44:13,626 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 03:44:13,626 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 03:44:13,626 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 03:44:13,630 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 03:44:13,630 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 03:44:13,631 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 03:44:13,632 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 03:44:13,636 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 03:44:13,638 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 03:44:13,652 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 03:44:13,653 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 03:44:13,654 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 03:44:13,679 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 03:44:13,730 INFO L200 MainTranslator]: Completed pre-run [2024-11-14 03:44:13,752 WARN L250 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_ed842c3a-a8c6-4be2-bb6a-87fc50f92419/sv-benchmarks/c/aws-c-common/aws_priority_queue_s_sift_up_harness.i[4502,4515] [2024-11-14 03:44:13,753 WARN L250 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_ed842c3a-a8c6-4be2-bb6a-87fc50f92419/sv-benchmarks/c/aws-c-common/aws_priority_queue_s_sift_up_harness.i[4562,4575] [2024-11-14 03:44:13,828 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 03:44:13,829 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 03:44:13,829 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 03:44:13,830 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 03:44:13,832 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 03:44:13,848 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 03:44:13,849 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 03:44:13,851 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 03:44:13,851 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 03:44:13,852 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 03:44:13,853 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 03:44:13,854 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 03:44:13,856 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 03:44:13,971 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 03:44:13,972 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 03:44:13,973 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 03:44:13,979 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 03:44:13,987 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [7776-7787] [2024-11-14 03:44:14,011 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 03:44:14,012 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 03:44:14,012 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 03:44:14,012 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 03:44:14,012 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 03:44:14,013 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 03:44:14,013 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 03:44:14,013 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 03:44:14,014 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 03:44:14,014 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 03:44:14,014 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 03:44:14,014 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 03:44:14,017 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 03:44:14,018 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 03:44:14,019 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 03:44:14,019 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 03:44:14,019 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 03:44:14,022 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 03:44:14,023 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 03:44:14,032 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 03:44:14,034 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 03:44:14,034 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 03:44:14,046 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 03:44:14,296 INFO L204 MainTranslator]: Completed translation [2024-11-14 03:44:14,297 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:44:14 WrapperNode [2024-11-14 03:44:14,297 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-14 03:44:14,298 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-14 03:44:14,300 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-14 03:44:14,300 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-14 03:44:14,307 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:44:14" (1/1) ... [2024-11-14 03:44:14,375 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:44:14" (1/1) ... [2024-11-14 03:44:14,468 INFO L138 Inliner]: procedures = 686, calls = 1900, calls flagged for inlining = 60, calls inlined = 14, statements flattened = 847 [2024-11-14 03:44:14,472 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-14 03:44:14,472 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-14 03:44:14,473 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-14 03:44:14,473 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-14 03:44:14,483 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:44:14" (1/1) ... [2024-11-14 03:44:14,483 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:44:14" (1/1) ... [2024-11-14 03:44:14,502 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:44:14" (1/1) ... [2024-11-14 03:44:14,503 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:44:14" (1/1) ... [2024-11-14 03:44:14,558 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:44:14" (1/1) ... [2024-11-14 03:44:14,595 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:44:14" (1/1) ... [2024-11-14 03:44:14,607 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:44:14" (1/1) ... [2024-11-14 03:44:14,617 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:44:14" (1/1) ... [2024-11-14 03:44:14,641 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-14 03:44:14,642 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-14 03:44:14,646 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-14 03:44:14,646 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-14 03:44:14,647 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:44:14" (1/1) ... [2024-11-14 03:44:14,657 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 03:44:14,683 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed842c3a-a8c6-4be2-bb6a-87fc50f92419/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:44:14,701 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed842c3a-a8c6-4be2-bb6a-87fc50f92419/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-14 03:44:14,706 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed842c3a-a8c6-4be2-bb6a-87fc50f92419/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-14 03:44:14,737 INFO L130 BoogieDeclarations]: Found specification of procedure s_swap [2024-11-14 03:44:14,737 INFO L138 BoogieDeclarations]: Found implementation of procedure s_swap [2024-11-14 03:44:14,737 INFO L130 BoogieDeclarations]: Found specification of procedure aws_is_mem_zeroed [2024-11-14 03:44:14,737 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_is_mem_zeroed [2024-11-14 03:44:14,737 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-14 03:44:14,738 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_bounded [2024-11-14 03:44:14,738 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_bounded [2024-11-14 03:44:14,738 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_valid [2024-11-14 03:44:14,738 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_valid [2024-11-14 03:44:14,738 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2024-11-14 03:44:14,738 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2024-11-14 03:44:14,738 INFO L130 BoogieDeclarations]: Found specification of procedure s_sift_up [2024-11-14 03:44:14,739 INFO L138 BoogieDeclarations]: Found implementation of procedure s_sift_up [2024-11-14 03:44:14,739 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2024-11-14 03:44:14,739 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-14 03:44:14,739 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2024-11-14 03:44:14,739 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2024-11-14 03:44:14,740 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-14 03:44:14,740 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-14 03:44:14,740 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-14 03:44:14,740 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-14 03:44:14,740 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2024-11-14 03:44:14,740 INFO L130 BoogieDeclarations]: Found specification of procedure my_abort [2024-11-14 03:44:14,740 INFO L138 BoogieDeclarations]: Found implementation of procedure my_abort [2024-11-14 03:44:14,740 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_impl [2024-11-14 03:44:14,740 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_impl [2024-11-14 03:44:14,740 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-14 03:44:14,740 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-14 03:44:14,740 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2024-11-14 03:44:14,740 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2024-11-14 03:44:14,740 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_size_t [2024-11-14 03:44:14,741 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_size_t [2024-11-14 03:44:14,741 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2024-11-14 03:44:14,741 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2024-11-14 03:44:14,741 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2024-11-14 03:44:14,741 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_malloc [2024-11-14 03:44:14,741 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_malloc [2024-11-14 03:44:14,741 INFO L130 BoogieDeclarations]: Found specification of procedure aws_priority_queue_is_valid [2024-11-14 03:44:14,743 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_priority_queue_is_valid [2024-11-14 03:44:14,743 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_length [2024-11-14 03:44:14,743 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_length [2024-11-14 03:44:14,743 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-14 03:44:14,743 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-14 03:44:14,743 INFO L130 BoogieDeclarations]: Found specification of procedure my_memcpy [2024-11-14 03:44:14,743 INFO L138 BoogieDeclarations]: Found implementation of procedure my_memcpy [2024-11-14 03:44:14,743 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-14 03:44:14,743 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2024-11-14 03:44:14,743 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2024-11-14 03:44:14,743 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_get_at_ptr [2024-11-14 03:44:14,743 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_get_at_ptr [2024-11-14 03:44:14,744 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2024-11-14 03:44:14,744 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2024-11-14 03:44:14,744 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2024-11-14 03:44:14,744 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2024-11-14 03:44:14,744 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-14 03:44:14,744 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_array_list_has_allocated_data_member [2024-11-14 03:44:14,744 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_array_list_has_allocated_data_member [2024-11-14 03:44:14,744 INFO L130 BoogieDeclarations]: Found specification of procedure aws_priority_queue_backpointer_index_valid [2024-11-14 03:44:14,744 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_priority_queue_backpointer_index_valid [2024-11-14 03:44:14,744 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2024-11-14 03:44:14,744 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2024-11-14 03:44:14,744 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-14 03:44:15,305 INFO L238 CfgBuilder]: Building ICFG [2024-11-14 03:44:15,309 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-14 03:44:20,775 INFO L? ?]: Removed 197 outVars from TransFormulas that were not future-live. [2024-11-14 03:44:20,776 INFO L287 CfgBuilder]: Performing block encoding [2024-11-14 03:44:21,612 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-14 03:44:21,612 INFO L316 CfgBuilder]: Removed 5 assume(true) statements. [2024-11-14 03:44:21,613 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 03:44:21 BoogieIcfgContainer [2024-11-14 03:44:21,613 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-14 03:44:21,615 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-14 03:44:21,615 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-14 03:44:21,621 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-14 03:44:21,621 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.11 03:44:10" (1/3) ... [2024-11-14 03:44:21,622 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@387b8994 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 03:44:21, skipping insertion in model container [2024-11-14 03:44:21,622 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:44:14" (2/3) ... [2024-11-14 03:44:21,623 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@387b8994 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 03:44:21, skipping insertion in model container [2024-11-14 03:44:21,623 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 03:44:21" (3/3) ... [2024-11-14 03:44:21,625 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_priority_queue_s_sift_up_harness.i [2024-11-14 03:44:21,644 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-14 03:44:21,646 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG aws_priority_queue_s_sift_up_harness.i that has 25 procedures, 269 locations, 1 initial locations, 5 loop locations, and 2 error locations. [2024-11-14 03:44:21,727 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-14 03:44:21,743 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;@436fcb18, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-14 03:44:21,743 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-14 03:44:21,749 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) [2024-11-14 03:44:21,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-11-14 03:44:21,764 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:44:21,765 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] [2024-11-14 03:44:21,766 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 03:44:21,772 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:44:21,772 INFO L85 PathProgramCache]: Analyzing trace with hash 907843044, now seen corresponding path program 1 times [2024-11-14 03:44:21,783 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:44:21,784 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1743057095] [2024-11-14 03:44:21,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:44:21,785 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:44:30,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:44:32,550 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 102 trivial. 0 not checked. [2024-11-14 03:44:32,551 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:44:32,551 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1743057095] [2024-11-14 03:44:32,552 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1743057095] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 03:44:32,553 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1444900314] [2024-11-14 03:44:32,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:44:32,553 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:44:32,553 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed842c3a-a8c6-4be2-bb6a-87fc50f92419/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:44:32,556 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed842c3a-a8c6-4be2-bb6a-87fc50f92419/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 03:44:32,561 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed842c3a-a8c6-4be2-bb6a-87fc50f92419/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-14 03:44:40,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:44:40,911 INFO L255 TraceCheckSpWp]: Trace formula consists of 4328 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-14 03:44:40,928 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:44:41,466 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2024-11-14 03:44:41,466 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 03:44:41,467 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1444900314] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:44:41,467 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-14 03:44:41,467 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 8 [2024-11-14 03:44:41,470 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1587622511] [2024-11-14 03:44:41,470 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:44:41,475 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-14 03:44:41,476 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:44:41,500 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-14 03:44:41,502 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-11-14 03:44:41,507 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) [2024-11-14 03:44:43,720 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.19s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 03:44:46,017 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.29s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 03:44:48,314 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.29s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 03:44:50,254 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:44:50,255 INFO L93 Difference]: Finished difference Result 497 states and 718 transitions. [2024-11-14 03:44:50,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-14 03:44:50,258 INFO L78 Accepts]: Start accepts. Automaton has 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) Word has length 107 [2024-11-14 03:44:50,259 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:44:50,271 INFO L225 Difference]: With dead ends: 497 [2024-11-14 03:44:50,272 INFO L226 Difference]: Without dead ends: 268 [2024-11-14 03:44:50,277 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 105 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-11-14 03:44:50,281 INFO L432 NwaCegarLoop]: 318 mSDtfsCounter, 22 mSDsluCounter, 900 mSDsCounter, 0 mSdLazyCounter, 194 mSolverCounterSat, 1 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 1218 SdHoareTripleChecker+Invalid, 198 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 194 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.6s IncrementalHoareTripleChecker+Time [2024-11-14 03:44:50,282 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 1218 Invalid, 198 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 194 Invalid, 3 Unknown, 0 Unchecked, 8.6s Time] [2024-11-14 03:44:50,301 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 268 states. [2024-11-14 03:44:50,353 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 268 to 268. [2024-11-14 03:44:50,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 268 states, 140 states have (on average 1.1785714285714286) internal successors, (165), 143 states have internal predecessors, (165), 102 states have call successors, (102), 24 states have call predecessors, (102), 24 states have return successors, (104), 100 states have call predecessors, (104), 100 states have call successors, (104) [2024-11-14 03:44:50,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 268 states to 268 states and 371 transitions. [2024-11-14 03:44:50,372 INFO L78 Accepts]: Start accepts. Automaton has 268 states and 371 transitions. Word has length 107 [2024-11-14 03:44:50,372 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:44:50,373 INFO L471 AbstractCegarLoop]: Abstraction has 268 states and 371 transitions. [2024-11-14 03:44:50,373 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has 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) [2024-11-14 03:44:50,375 INFO L276 IsEmpty]: Start isEmpty. Operand 268 states and 371 transitions. [2024-11-14 03:44:50,382 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2024-11-14 03:44:50,382 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:44:50,383 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 3, 3, 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] [2024-11-14 03:44:50,420 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed842c3a-a8c6-4be2-bb6a-87fc50f92419/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-14 03:44:50,584 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed842c3a-a8c6-4be2-bb6a-87fc50f92419/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-11-14 03:44:50,584 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 03:44:50,585 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:44:50,585 INFO L85 PathProgramCache]: Analyzing trace with hash -7625052, now seen corresponding path program 1 times [2024-11-14 03:44:50,585 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:44:50,585 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [515632267] [2024-11-14 03:44:50,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:44:50,585 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:44:57,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:44:59,784 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 102 trivial. 0 not checked. [2024-11-14 03:44:59,784 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:44:59,784 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [515632267] [2024-11-14 03:44:59,785 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [515632267] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 03:44:59,785 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [527124514] [2024-11-14 03:44:59,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:44:59,785 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:44:59,785 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed842c3a-a8c6-4be2-bb6a-87fc50f92419/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:44:59,788 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed842c3a-a8c6-4be2-bb6a-87fc50f92419/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 03:44:59,789 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed842c3a-a8c6-4be2-bb6a-87fc50f92419/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-14 03:45:07,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:45:07,246 INFO L255 TraceCheckSpWp]: Trace formula consists of 4378 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-14 03:45:07,255 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:45:08,341 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2024-11-14 03:45:08,341 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 03:45:08,342 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [527124514] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:45:08,342 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-14 03:45:08,342 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [7] total 12 [2024-11-14 03:45:08,342 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1897939503] [2024-11-14 03:45:08,342 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:45:08,343 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-14 03:45:08,344 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:45:08,346 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-14 03:45:08,346 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2024-11-14 03:45:08,347 INFO L87 Difference]: Start difference. First operand 268 states and 371 transitions. Second operand has 7 states, 7 states have (on average 6.428571428571429) internal successors, (45), 7 states have internal predecessors, (45), 4 states have call successors, (24), 2 states have call predecessors, (24), 4 states have return successors, (22), 4 states have call predecessors, (22), 4 states have call successors, (22) [2024-11-14 03:45:10,455 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 03:45:12,723 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.27s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 03:45:15,023 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.30s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 03:45:17,316 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.29s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 03:45:19,581 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.26s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 03:45:23,439 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:45:23,439 INFO L93 Difference]: Finished difference Result 507 states and 716 transitions. [2024-11-14 03:45:23,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-14 03:45:23,440 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.428571428571429) internal successors, (45), 7 states have internal predecessors, (45), 4 states have call successors, (24), 2 states have call predecessors, (24), 4 states have return successors, (22), 4 states have call predecessors, (22), 4 states have call successors, (22) Word has length 115 [2024-11-14 03:45:23,441 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:45:23,446 INFO L225 Difference]: With dead ends: 507 [2024-11-14 03:45:23,446 INFO L226 Difference]: Without dead ends: 281 [2024-11-14 03:45:23,448 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 111 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2024-11-14 03:45:23,449 INFO L432 NwaCegarLoop]: 307 mSDtfsCounter, 28 mSDsluCounter, 1457 mSDsCounter, 0 mSdLazyCounter, 377 mSolverCounterSat, 2 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 1764 SdHoareTripleChecker+Invalid, 384 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 377 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.9s IncrementalHoareTripleChecker+Time [2024-11-14 03:45:23,450 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 1764 Invalid, 384 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 377 Invalid, 5 Unknown, 0 Unchecked, 14.9s Time] [2024-11-14 03:45:23,451 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 281 states. [2024-11-14 03:45:23,485 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 281 to 279. [2024-11-14 03:45:23,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 279 states, 148 states have (on average 1.1824324324324325) internal successors, (175), 151 states have internal predecessors, (175), 104 states have call successors, (104), 24 states have call predecessors, (104), 25 states have return successors, (117), 103 states have call predecessors, (117), 102 states have call successors, (117) [2024-11-14 03:45:23,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 279 states to 279 states and 396 transitions. [2024-11-14 03:45:23,492 INFO L78 Accepts]: Start accepts. Automaton has 279 states and 396 transitions. Word has length 115 [2024-11-14 03:45:23,493 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:45:23,493 INFO L471 AbstractCegarLoop]: Abstraction has 279 states and 396 transitions. [2024-11-14 03:45:23,494 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.428571428571429) internal successors, (45), 7 states have internal predecessors, (45), 4 states have call successors, (24), 2 states have call predecessors, (24), 4 states have return successors, (22), 4 states have call predecessors, (22), 4 states have call successors, (22) [2024-11-14 03:45:23,494 INFO L276 IsEmpty]: Start isEmpty. Operand 279 states and 396 transitions. [2024-11-14 03:45:23,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2024-11-14 03:45:23,498 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:45:23,498 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 3, 3, 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, 1, 1, 1, 1] [2024-11-14 03:45:23,529 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed842c3a-a8c6-4be2-bb6a-87fc50f92419/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-14 03:45:23,699 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed842c3a-a8c6-4be2-bb6a-87fc50f92419/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:45:23,699 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 03:45:23,700 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:45:23,700 INFO L85 PathProgramCache]: Analyzing trace with hash -171712039, now seen corresponding path program 1 times [2024-11-14 03:45:23,700 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:45:23,700 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [703407081] [2024-11-14 03:45:23,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:45:23,700 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:45:29,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:45:31,414 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 102 trivial. 0 not checked. [2024-11-14 03:45:31,414 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:45:31,415 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [703407081] [2024-11-14 03:45:31,415 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [703407081] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 03:45:31,415 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1503376719] [2024-11-14 03:45:31,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:45:31,415 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:45:31,416 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed842c3a-a8c6-4be2-bb6a-87fc50f92419/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:45:31,419 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed842c3a-a8c6-4be2-bb6a-87fc50f92419/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 03:45:31,421 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed842c3a-a8c6-4be2-bb6a-87fc50f92419/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-14 03:45:38,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:45:38,677 INFO L255 TraceCheckSpWp]: Trace formula consists of 4482 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-14 03:45:38,683 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:45:39,669 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2024-11-14 03:45:39,670 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 03:45:39,670 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1503376719] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:45:39,670 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-14 03:45:39,670 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 10 [2024-11-14 03:45:39,670 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2015469044] [2024-11-14 03:45:39,671 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:45:39,673 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-14 03:45:39,673 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:45:39,678 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-14 03:45:39,678 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-11-14 03:45:39,678 INFO L87 Difference]: Start difference. First operand 279 states and 396 transitions. Second operand has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 6 states have internal predecessors, (50), 4 states have call successors, (26), 2 states have call predecessors, (26), 3 states have return successors, (24), 4 states have call predecessors, (24), 4 states have call successors, (24) [2024-11-14 03:45:41,756 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 03:45:44,074 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.32s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 03:45:46,365 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.29s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 03:45:48,654 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.29s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 03:45:51,330 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:45:51,330 INFO L93 Difference]: Finished difference Result 522 states and 748 transitions. [2024-11-14 03:45:51,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-14 03:45:51,331 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 6 states have internal predecessors, (50), 4 states have call successors, (26), 2 states have call predecessors, (26), 3 states have return successors, (24), 4 states have call predecessors, (24), 4 states have call successors, (24) Word has length 124 [2024-11-14 03:45:51,331 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:45:51,339 INFO L225 Difference]: With dead ends: 522 [2024-11-14 03:45:51,341 INFO L226 Difference]: Without dead ends: 285 [2024-11-14 03:45:51,343 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 129 GetRequests, 121 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-11-14 03:45:51,344 INFO L432 NwaCegarLoop]: 316 mSDtfsCounter, 27 mSDsluCounter, 1190 mSDsCounter, 0 mSdLazyCounter, 258 mSolverCounterSat, 2 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 1506 SdHoareTripleChecker+Invalid, 264 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 258 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.6s IncrementalHoareTripleChecker+Time [2024-11-14 03:45:51,344 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 1506 Invalid, 264 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 258 Invalid, 4 Unknown, 0 Unchecked, 11.6s Time] [2024-11-14 03:45:51,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 285 states. [2024-11-14 03:45:51,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 285 to 279. [2024-11-14 03:45:51,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 279 states, 148 states have (on average 1.1824324324324325) internal successors, (175), 151 states have internal predecessors, (175), 104 states have call successors, (104), 24 states have call predecessors, (104), 25 states have return successors, (117), 103 states have call predecessors, (117), 102 states have call successors, (117) [2024-11-14 03:45:51,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 279 states to 279 states and 396 transitions. [2024-11-14 03:45:51,408 INFO L78 Accepts]: Start accepts. Automaton has 279 states and 396 transitions. Word has length 124 [2024-11-14 03:45:51,408 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:45:51,408 INFO L471 AbstractCegarLoop]: Abstraction has 279 states and 396 transitions. [2024-11-14 03:45:51,409 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 6 states have internal predecessors, (50), 4 states have call successors, (26), 2 states have call predecessors, (26), 3 states have return successors, (24), 4 states have call predecessors, (24), 4 states have call successors, (24) [2024-11-14 03:45:51,409 INFO L276 IsEmpty]: Start isEmpty. Operand 279 states and 396 transitions. [2024-11-14 03:45:51,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2024-11-14 03:45:51,416 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:45:51,416 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:45:51,445 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed842c3a-a8c6-4be2-bb6a-87fc50f92419/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-14 03:45:51,617 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed842c3a-a8c6-4be2-bb6a-87fc50f92419/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:45:51,617 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 03:45:51,617 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:45:51,617 INFO L85 PathProgramCache]: Analyzing trace with hash 2085714104, now seen corresponding path program 1 times [2024-11-14 03:45:51,618 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:45:51,618 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [252846355] [2024-11-14 03:45:51,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:45:51,618 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:45:57,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:45:59,289 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 103 trivial. 0 not checked. [2024-11-14 03:45:59,290 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:45:59,290 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [252846355] [2024-11-14 03:45:59,290 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [252846355] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 03:45:59,290 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [49142534] [2024-11-14 03:45:59,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:45:59,291 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:45:59,291 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed842c3a-a8c6-4be2-bb6a-87fc50f92419/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:45:59,293 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed842c3a-a8c6-4be2-bb6a-87fc50f92419/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 03:45:59,296 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed842c3a-a8c6-4be2-bb6a-87fc50f92419/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-14 03:46:06,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:46:06,126 INFO L255 TraceCheckSpWp]: Trace formula consists of 4522 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-14 03:46:06,134 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:46:07,579 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 47 proven. 0 refuted. 0 times theorem prover too weak. 65 trivial. 0 not checked. [2024-11-14 03:46:07,579 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 03:46:07,579 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [49142534] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:46:07,579 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-14 03:46:07,580 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [8] total 14 [2024-11-14 03:46:07,580 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1227485909] [2024-11-14 03:46:07,580 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:46:07,581 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-14 03:46:07,581 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:46:07,581 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-14 03:46:07,582 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2024-11-14 03:46:07,582 INFO L87 Difference]: Start difference. First operand 279 states and 396 transitions. Second operand has 8 states, 8 states have (on average 7.0) internal successors, (56), 8 states have internal predecessors, (56), 5 states have call successors, (27), 2 states have call predecessors, (27), 4 states have return successors, (25), 5 states have call predecessors, (25), 5 states have call successors, (25) [2024-11-14 03:46:09,650 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 03:46:11,952 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.30s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 03:46:14,232 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.28s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 03:46:16,512 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.28s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 03:46:18,807 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.29s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 03:46:21,101 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.29s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 03:46:25,952 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:46:25,952 INFO L93 Difference]: Finished difference Result 525 states and 750 transitions. [2024-11-14 03:46:25,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-14 03:46:25,953 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.0) internal successors, (56), 8 states have internal predecessors, (56), 5 states have call successors, (27), 2 states have call predecessors, (27), 4 states have return successors, (25), 5 states have call predecessors, (25), 5 states have call successors, (25) Word has length 132 [2024-11-14 03:46:25,953 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:46:25,957 INFO L225 Difference]: With dead ends: 525 [2024-11-14 03:46:25,957 INFO L226 Difference]: Without dead ends: 288 [2024-11-14 03:46:25,959 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 141 GetRequests, 127 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=39, Invalid=201, Unknown=0, NotChecked=0, Total=240 [2024-11-14 03:46:25,960 INFO L432 NwaCegarLoop]: 304 mSDtfsCounter, 37 mSDsluCounter, 1732 mSDsCounter, 0 mSdLazyCounter, 456 mSolverCounterSat, 9 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 2036 SdHoareTripleChecker+Invalid, 471 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 456 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.0s IncrementalHoareTripleChecker+Time [2024-11-14 03:46:25,960 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [50 Valid, 2036 Invalid, 471 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 456 Invalid, 6 Unknown, 0 Unchecked, 18.0s Time] [2024-11-14 03:46:25,962 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 288 states. [2024-11-14 03:46:25,983 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 288 to 279. [2024-11-14 03:46:25,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 279 states, 148 states have (on average 1.1824324324324325) internal successors, (175), 151 states have internal predecessors, (175), 104 states have call successors, (104), 24 states have call predecessors, (104), 25 states have return successors, (117), 103 states have call predecessors, (117), 102 states have call successors, (117) [2024-11-14 03:46:25,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 279 states to 279 states and 396 transitions. [2024-11-14 03:46:25,989 INFO L78 Accepts]: Start accepts. Automaton has 279 states and 396 transitions. Word has length 132 [2024-11-14 03:46:25,989 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:46:25,989 INFO L471 AbstractCegarLoop]: Abstraction has 279 states and 396 transitions. [2024-11-14 03:46:25,990 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.0) internal successors, (56), 8 states have internal predecessors, (56), 5 states have call successors, (27), 2 states have call predecessors, (27), 4 states have return successors, (25), 5 states have call predecessors, (25), 5 states have call successors, (25) [2024-11-14 03:46:25,990 INFO L276 IsEmpty]: Start isEmpty. Operand 279 states and 396 transitions. [2024-11-14 03:46:25,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2024-11-14 03:46:25,995 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:46:25,996 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 3, 3, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-14 03:46:26,035 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed842c3a-a8c6-4be2-bb6a-87fc50f92419/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-14 03:46:26,199 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed842c3a-a8c6-4be2-bb6a-87fc50f92419/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:46:26,200 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 03:46:26,200 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:46:26,200 INFO L85 PathProgramCache]: Analyzing trace with hash 832007947, now seen corresponding path program 1 times [2024-11-14 03:46:26,200 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:46:26,200 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1574551400] [2024-11-14 03:46:26,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:46:26,201 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:46:32,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:46:34,847 INFO L134 CoverageAnalysis]: Checked inductivity of 121 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 115 trivial. 0 not checked. [2024-11-14 03:46:34,847 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:46:34,847 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1574551400] [2024-11-14 03:46:34,848 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1574551400] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 03:46:34,848 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1212924895] [2024-11-14 03:46:34,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:46:34,848 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:46:34,848 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed842c3a-a8c6-4be2-bb6a-87fc50f92419/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:46:34,851 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed842c3a-a8c6-4be2-bb6a-87fc50f92419/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 03:46:34,853 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed842c3a-a8c6-4be2-bb6a-87fc50f92419/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-14 03:46:41,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:46:41,842 INFO L255 TraceCheckSpWp]: Trace formula consists of 4626 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-14 03:46:41,848 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:46:43,020 INFO L134 CoverageAnalysis]: Checked inductivity of 121 backedges. 31 proven. 0 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2024-11-14 03:46:43,021 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 03:46:43,021 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1212924895] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:46:43,021 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-14 03:46:43,021 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [7] total 12 [2024-11-14 03:46:43,022 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1428831342] [2024-11-14 03:46:43,022 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:46:43,022 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-14 03:46:43,023 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:46:43,023 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-14 03:46:43,024 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2024-11-14 03:46:43,024 INFO L87 Difference]: Start difference. First operand 279 states and 396 transitions. Second operand has 7 states, 6 states have (on average 9.166666666666666) internal successors, (55), 6 states have internal predecessors, (55), 4 states have call successors, (27), 3 states have call predecessors, (27), 3 states have return successors, (25), 3 states have call predecessors, (25), 4 states have call successors, (25) [2024-11-14 03:46:45,086 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 03:46:47,351 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.26s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 03:46:49,624 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.27s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 03:46:51,970 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.34s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 03:46:54,243 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.27s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 03:46:57,287 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:46:57,287 INFO L93 Difference]: Finished difference Result 488 states and 701 transitions. [2024-11-14 03:46:57,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-14 03:46:57,288 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 9.166666666666666) internal successors, (55), 6 states have internal predecessors, (55), 4 states have call successors, (27), 3 states have call predecessors, (27), 3 states have return successors, (25), 3 states have call predecessors, (25), 4 states have call successors, (25) Word has length 141 [2024-11-14 03:46:57,289 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:46:57,292 INFO L225 Difference]: With dead ends: 488 [2024-11-14 03:46:57,293 INFO L226 Difference]: Without dead ends: 281 [2024-11-14 03:46:57,294 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 148 GetRequests, 137 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2024-11-14 03:46:57,295 INFO L432 NwaCegarLoop]: 315 mSDtfsCounter, 51 mSDsluCounter, 1480 mSDsCounter, 0 mSdLazyCounter, 287 mSolverCounterSat, 19 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 1795 SdHoareTripleChecker+Invalid, 311 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 287 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.1s IncrementalHoareTripleChecker+Time [2024-11-14 03:46:57,296 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [57 Valid, 1795 Invalid, 311 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 287 Invalid, 5 Unknown, 0 Unchecked, 14.1s Time] [2024-11-14 03:46:57,297 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 281 states. [2024-11-14 03:46:57,315 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 281 to 281. [2024-11-14 03:46:57,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 281 states, 149 states have (on average 1.1812080536912752) internal successors, (176), 153 states have internal predecessors, (176), 104 states have call successors, (104), 24 states have call predecessors, (104), 26 states have return successors, (119), 103 states have call predecessors, (119), 102 states have call successors, (119) [2024-11-14 03:46:57,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 281 states to 281 states and 399 transitions. [2024-11-14 03:46:57,319 INFO L78 Accepts]: Start accepts. Automaton has 281 states and 399 transitions. Word has length 141 [2024-11-14 03:46:57,320 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:46:57,320 INFO L471 AbstractCegarLoop]: Abstraction has 281 states and 399 transitions. [2024-11-14 03:46:57,321 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 9.166666666666666) internal successors, (55), 6 states have internal predecessors, (55), 4 states have call successors, (27), 3 states have call predecessors, (27), 3 states have return successors, (25), 3 states have call predecessors, (25), 4 states have call successors, (25) [2024-11-14 03:46:57,321 INFO L276 IsEmpty]: Start isEmpty. Operand 281 states and 399 transitions. [2024-11-14 03:46:57,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2024-11-14 03:46:57,324 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:46:57,324 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 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] [2024-11-14 03:46:57,360 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed842c3a-a8c6-4be2-bb6a-87fc50f92419/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-14 03:46:57,524 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed842c3a-a8c6-4be2-bb6a-87fc50f92419/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:46:57,524 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 03:46:57,525 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:46:57,525 INFO L85 PathProgramCache]: Analyzing trace with hash -469816949, now seen corresponding path program 1 times [2024-11-14 03:46:57,525 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:46:57,525 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2030565572] [2024-11-14 03:46:57,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:46:57,525 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:47:02,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:47:05,129 INFO L134 CoverageAnalysis]: Checked inductivity of 153 backedges. 13 proven. 10 refuted. 0 times theorem prover too weak. 130 trivial. 0 not checked. [2024-11-14 03:47:05,129 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:47:05,129 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2030565572] [2024-11-14 03:47:05,129 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2030565572] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 03:47:05,129 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [163464120] [2024-11-14 03:47:05,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:47:05,130 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:47:05,130 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed842c3a-a8c6-4be2-bb6a-87fc50f92419/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:47:05,132 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed842c3a-a8c6-4be2-bb6a-87fc50f92419/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 03:47:05,133 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed842c3a-a8c6-4be2-bb6a-87fc50f92419/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-14 03:47:14,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:47:14,160 INFO L255 TraceCheckSpWp]: Trace formula consists of 4726 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-14 03:47:14,171 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:47:16,157 INFO L134 CoverageAnalysis]: Checked inductivity of 153 backedges. 61 proven. 0 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2024-11-14 03:47:16,158 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 03:47:16,158 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [163464120] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:47:16,158 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-14 03:47:16,158 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [9] total 16 [2024-11-14 03:47:16,158 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1890334832] [2024-11-14 03:47:16,158 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:47:16,159 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-14 03:47:16,159 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:47:16,160 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-14 03:47:16,160 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=204, Unknown=0, NotChecked=0, Total=240 [2024-11-14 03:47:16,160 INFO L87 Difference]: Start difference. First operand 281 states and 399 transitions. Second operand has 9 states, 8 states have (on average 8.375) internal successors, (67), 8 states have internal predecessors, (67), 5 states have call successors, (29), 3 states have call predecessors, (29), 4 states have return successors, (27), 4 states have call predecessors, (27), 5 states have call successors, (27) [2024-11-14 03:47:18,223 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 03:47:20,487 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.26s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 03:47:22,742 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.25s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 03:47:25,027 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.28s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 03:47:27,289 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.26s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 03:47:29,577 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.29s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 03:47:31,928 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.35s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 03:47:37,155 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:47:37,155 INFO L93 Difference]: Finished difference Result 498 states and 715 transitions. [2024-11-14 03:47:37,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-14 03:47:37,156 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 8.375) internal successors, (67), 8 states have internal predecessors, (67), 5 states have call successors, (29), 3 states have call predecessors, (29), 4 states have return successors, (27), 4 states have call predecessors, (27), 5 states have call successors, (27) Word has length 157 [2024-11-14 03:47:37,157 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:47:37,160 INFO L225 Difference]: With dead ends: 498 [2024-11-14 03:47:37,160 INFO L226 Difference]: Without dead ends: 289 [2024-11-14 03:47:37,162 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 167 GetRequests, 151 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=46, Invalid=260, Unknown=0, NotChecked=0, Total=306 [2024-11-14 03:47:37,163 INFO L432 NwaCegarLoop]: 309 mSDtfsCounter, 57 mSDsluCounter, 2040 mSDsCounter, 0 mSdLazyCounter, 516 mSolverCounterSat, 20 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 18.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 2349 SdHoareTripleChecker+Invalid, 543 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 516 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 20.7s IncrementalHoareTripleChecker+Time [2024-11-14 03:47:37,163 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [68 Valid, 2349 Invalid, 543 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 516 Invalid, 7 Unknown, 0 Unchecked, 20.7s Time] [2024-11-14 03:47:37,165 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 289 states. [2024-11-14 03:47:37,181 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 289 to 287. [2024-11-14 03:47:37,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 287 states, 154 states have (on average 1.1818181818181819) internal successors, (182), 157 states have internal predecessors, (182), 105 states have call successors, (105), 24 states have call predecessors, (105), 26 states have return successors, (120), 105 states have call predecessors, (120), 103 states have call successors, (120) [2024-11-14 03:47:37,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 287 states to 287 states and 407 transitions. [2024-11-14 03:47:37,186 INFO L78 Accepts]: Start accepts. Automaton has 287 states and 407 transitions. Word has length 157 [2024-11-14 03:47:37,187 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:47:37,187 INFO L471 AbstractCegarLoop]: Abstraction has 287 states and 407 transitions. [2024-11-14 03:47:37,187 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 8.375) internal successors, (67), 8 states have internal predecessors, (67), 5 states have call successors, (29), 3 states have call predecessors, (29), 4 states have return successors, (27), 4 states have call predecessors, (27), 5 states have call successors, (27) [2024-11-14 03:47:37,187 INFO L276 IsEmpty]: Start isEmpty. Operand 287 states and 407 transitions. [2024-11-14 03:47:37,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2024-11-14 03:47:37,190 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:47:37,191 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 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] [2024-11-14 03:47:37,226 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed842c3a-a8c6-4be2-bb6a-87fc50f92419/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-14 03:47:37,391 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed842c3a-a8c6-4be2-bb6a-87fc50f92419/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:47:37,391 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 03:47:37,392 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:47:37,392 INFO L85 PathProgramCache]: Analyzing trace with hash -371598267, now seen corresponding path program 1 times [2024-11-14 03:47:37,392 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:47:37,392 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [537057600] [2024-11-14 03:47:37,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:47:37,392 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:47:44,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:47:46,042 INFO L134 CoverageAnalysis]: Checked inductivity of 198 backedges. 7 proven. 7 refuted. 0 times theorem prover too weak. 184 trivial. 0 not checked. [2024-11-14 03:47:46,042 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:47:46,042 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [537057600] [2024-11-14 03:47:46,042 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [537057600] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 03:47:46,042 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [702419553] [2024-11-14 03:47:46,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:47:46,043 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:47:46,043 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed842c3a-a8c6-4be2-bb6a-87fc50f92419/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:47:46,045 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed842c3a-a8c6-4be2-bb6a-87fc50f92419/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 03:47:46,046 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed842c3a-a8c6-4be2-bb6a-87fc50f92419/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-14 03:47:56,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:47:56,516 INFO L255 TraceCheckSpWp]: Trace formula consists of 4934 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-14 03:47:56,525 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:47:58,415 INFO L134 CoverageAnalysis]: Checked inductivity of 198 backedges. 82 proven. 0 refuted. 0 times theorem prover too weak. 116 trivial. 0 not checked. [2024-11-14 03:47:58,415 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 03:47:58,416 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [702419553] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:47:58,416 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-14 03:47:58,416 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [8] total 14 [2024-11-14 03:47:58,416 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1532742511] [2024-11-14 03:47:58,416 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:47:58,417 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-14 03:47:58,417 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:47:58,417 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-14 03:47:58,417 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2024-11-14 03:47:58,418 INFO L87 Difference]: Start difference. First operand 287 states and 407 transitions. Second operand has 8 states, 7 states have (on average 9.857142857142858) internal successors, (69), 7 states have internal predecessors, (69), 5 states have call successors, (31), 3 states have call predecessors, (31), 3 states have return successors, (29), 4 states have call predecessors, (29), 5 states have call successors, (29) [2024-11-14 03:48:00,490 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 03:48:02,808 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.32s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 03:48:05,105 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.29s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 03:48:07,421 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.31s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 03:48:09,742 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.32s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 03:48:12,051 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.31s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 03:48:16,696 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:48:16,696 INFO L93 Difference]: Finished difference Result 508 states and 728 transitions. [2024-11-14 03:48:16,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-14 03:48:16,697 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 9.857142857142858) internal successors, (69), 7 states have internal predecessors, (69), 5 states have call successors, (31), 3 states have call predecessors, (31), 3 states have return successors, (29), 4 states have call predecessors, (29), 5 states have call successors, (29) Word has length 175 [2024-11-14 03:48:16,698 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:48:16,701 INFO L225 Difference]: With dead ends: 508 [2024-11-14 03:48:16,701 INFO L226 Difference]: Without dead ends: 293 [2024-11-14 03:48:16,703 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 183 GetRequests, 170 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=37, Invalid=173, Unknown=0, NotChecked=0, Total=210 [2024-11-14 03:48:16,704 INFO L432 NwaCegarLoop]: 314 mSDtfsCounter, 56 mSDsluCounter, 1768 mSDsCounter, 0 mSdLazyCounter, 361 mSolverCounterSat, 20 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 2082 SdHoareTripleChecker+Invalid, 387 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 361 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.1s IncrementalHoareTripleChecker+Time [2024-11-14 03:48:16,704 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [63 Valid, 2082 Invalid, 387 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 361 Invalid, 6 Unknown, 0 Unchecked, 18.1s Time] [2024-11-14 03:48:16,706 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 293 states. [2024-11-14 03:48:16,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 293 to 287. [2024-11-14 03:48:16,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 287 states, 154 states have (on average 1.1818181818181819) internal successors, (182), 157 states have internal predecessors, (182), 105 states have call successors, (105), 24 states have call predecessors, (105), 26 states have return successors, (120), 105 states have call predecessors, (120), 103 states have call successors, (120) [2024-11-14 03:48:16,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 287 states to 287 states and 407 transitions. [2024-11-14 03:48:16,730 INFO L78 Accepts]: Start accepts. Automaton has 287 states and 407 transitions. Word has length 175 [2024-11-14 03:48:16,731 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:48:16,731 INFO L471 AbstractCegarLoop]: Abstraction has 287 states and 407 transitions. [2024-11-14 03:48:16,731 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 9.857142857142858) internal successors, (69), 7 states have internal predecessors, (69), 5 states have call successors, (31), 3 states have call predecessors, (31), 3 states have return successors, (29), 4 states have call predecessors, (29), 5 states have call successors, (29) [2024-11-14 03:48:16,731 INFO L276 IsEmpty]: Start isEmpty. Operand 287 states and 407 transitions. [2024-11-14 03:48:16,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 210 [2024-11-14 03:48:16,735 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:48:16,735 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2024-11-14 03:48:16,783 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed842c3a-a8c6-4be2-bb6a-87fc50f92419/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-14 03:48:16,936 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed842c3a-a8c6-4be2-bb6a-87fc50f92419/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:48:16,936 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 03:48:16,937 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:48:16,937 INFO L85 PathProgramCache]: Analyzing trace with hash 2112469273, now seen corresponding path program 1 times [2024-11-14 03:48:16,937 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:48:16,937 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1030379443] [2024-11-14 03:48:16,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:48:16,937 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:48:29,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat