./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/aws-c-common/aws_priority_queue_s_remove_node_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 48c9605d Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/aws-c-common/aws_priority_queue_s_remove_node_harness.i -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux --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 Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 78600a0192aa5022cfa892dc75b9c3e66d227a70dec366d4a7d6798475c28388 --- Real Ultimate output --- This is Ultimate 0.3.0-?-48c9605-m [2025-02-08 01:56:40,930 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-08 01:56:40,992 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2025-02-08 01:56:41,001 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-08 01:56:41,001 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-08 01:56:41,041 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-08 01:56:41,042 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-08 01:56:41,043 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-08 01:56:41,043 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-08 01:56:41,043 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-08 01:56:41,044 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-08 01:56:41,044 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-08 01:56:41,045 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-08 01:56:41,045 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-08 01:56:41,045 INFO L153 SettingsManager]: * Use SBE=true [2025-02-08 01:56:41,046 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-08 01:56:41,046 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-08 01:56:41,046 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-08 01:56:41,046 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-08 01:56:41,046 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-08 01:56:41,046 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-08 01:56:41,046 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-08 01:56:41,047 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-08 01:56:41,047 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-08 01:56:41,047 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-08 01:56:41,047 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-08 01:56:41,047 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-08 01:56:41,047 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-08 01:56:41,047 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-08 01:56:41,047 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 01:56:41,048 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-08 01:56:41,048 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-08 01:56:41,048 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-02-08 01:56:41,048 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-02-08 01:56:41,049 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-08 01:56:41,049 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-08 01:56:41,049 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-08 01:56:41,049 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-08 01:56:41,049 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-08 01:56:41,049 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-08 01:56:41,049 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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 -> /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux 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 -> Automizer 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 -> 78600a0192aa5022cfa892dc75b9c3e66d227a70dec366d4a7d6798475c28388 [2025-02-08 01:56:41,355 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-08 01:56:41,362 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-08 01:56:41,364 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-08 01:56:41,366 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-08 01:56:41,366 INFO L274 PluginConnector]: CDTParser initialized [2025-02-08 01:56:41,367 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_priority_queue_s_remove_node_harness.i [2025-02-08 01:56:42,639 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/95bef7ca2/70e906065a504c85b14de7eba4430fb2/FLAGb1a1cb16d [2025-02-08 01:56:43,343 INFO L384 CDTParser]: Found 1 translation units. [2025-02-08 01:56:43,345 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_priority_queue_s_remove_node_harness.i [2025-02-08 01:56:43,385 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/95bef7ca2/70e906065a504c85b14de7eba4430fb2/FLAGb1a1cb16d [2025-02-08 01:56:43,404 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/95bef7ca2/70e906065a504c85b14de7eba4430fb2 [2025-02-08 01:56:43,406 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-08 01:56:43,408 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-08 01:56:43,409 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-08 01:56:43,410 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-08 01:56:43,414 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-08 01:56:43,415 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 01:56:43" (1/1) ... [2025-02-08 01:56:43,416 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@67056a00 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:56:43, skipping insertion in model container [2025-02-08 01:56:43,416 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 01:56:43" (1/1) ... [2025-02-08 01:56:43,492 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-08 01:56:43,825 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_priority_queue_s_remove_node_harness.i[4506,4519] [2025-02-08 01:56:43,838 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_priority_queue_s_remove_node_harness.i[4566,4579] [2025-02-08 01:56:44,617 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:56:44,618 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:56:44,619 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:56:44,619 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:56:44,620 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:56:44,633 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:56:44,634 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:56:44,636 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:56:44,637 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:56:44,639 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:56:44,639 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:56:44,640 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:56:44,640 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:56:45,079 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:56:45,085 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:56:45,159 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:56:45,159 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:56:45,160 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:56:45,160 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:56:45,160 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:56:45,160 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:56:45,161 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:56:45,162 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:56:45,163 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:56:45,163 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:56:45,163 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:56:45,163 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:56:45,164 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:56:45,168 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:56:45,169 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:56:45,169 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:56:45,169 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:56:45,172 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:56:45,172 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:56:45,178 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:56:45,179 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:56:45,179 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:56:45,196 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:56:45,202 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:56:45,204 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:56:45,204 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:56:45,204 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:56:45,205 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:56:45,211 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 01:56:45,255 INFO L200 MainTranslator]: Completed pre-run [2025-02-08 01:56:45,266 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_priority_queue_s_remove_node_harness.i[4506,4519] [2025-02-08 01:56:45,267 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_priority_queue_s_remove_node_harness.i[4566,4579] [2025-02-08 01:56:45,365 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:56:45,366 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:56:45,366 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:56:45,366 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:56:45,367 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:56:45,372 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:56:45,372 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:56:45,373 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:56:45,373 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:56:45,374 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:56:45,374 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:56:45,375 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:56:45,375 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:56:45,469 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:56:45,475 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:56:45,482 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [7818-7829] [2025-02-08 01:56:45,505 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:56:45,506 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:56:45,506 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:56:45,507 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:56:45,507 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:56:45,508 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:56:45,508 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:56:45,508 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:56:45,508 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:56:45,509 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:56:45,509 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:56:45,509 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:56:45,509 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:56:45,510 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:56:45,510 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:56:45,510 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:56:45,510 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:56:45,512 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:56:45,512 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:56:45,518 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:56:45,518 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:56:45,518 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:56:45,523 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:56:45,525 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:56:45,525 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:56:45,526 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:56:45,526 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:56:45,527 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:56:45,528 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 01:56:45,715 INFO L204 MainTranslator]: Completed translation [2025-02-08 01:56:45,716 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:56:45 WrapperNode [2025-02-08 01:56:45,717 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-08 01:56:45,718 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-08 01:56:45,719 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-08 01:56:45,719 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-08 01:56:45,725 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:56:45" (1/1) ... [2025-02-08 01:56:45,810 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:56:45" (1/1) ... [2025-02-08 01:56:45,889 INFO L138 Inliner]: procedures = 688, calls = 1968, calls flagged for inlining = 59, calls inlined = 9, statements flattened = 746 [2025-02-08 01:56:45,890 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-08 01:56:45,891 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-08 01:56:45,891 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-08 01:56:45,891 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-08 01:56:45,904 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:56:45" (1/1) ... [2025-02-08 01:56:45,904 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:56:45" (1/1) ... [2025-02-08 01:56:45,912 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:56:45" (1/1) ... [2025-02-08 01:56:46,009 INFO L175 MemorySlicer]: Split 356 memory accesses to 5 slices as follows [2, 13, 3, 76, 262]. 74 percent of accesses are in the largest equivalence class. The 25 initializations are split as follows [2, 11, 1, 0, 11]. The 262 writes are split as follows [0, 0, 1, 19, 242]. [2025-02-08 01:56:46,009 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:56:45" (1/1) ... [2025-02-08 01:56:46,009 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:56:45" (1/1) ... [2025-02-08 01:56:46,083 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:56:45" (1/1) ... [2025-02-08 01:56:46,089 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:56:45" (1/1) ... [2025-02-08 01:56:46,098 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:56:45" (1/1) ... [2025-02-08 01:56:46,109 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:56:45" (1/1) ... [2025-02-08 01:56:46,126 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-08 01:56:46,130 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-08 01:56:46,132 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-08 01:56:46,132 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-08 01:56:46,133 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:56:45" (1/1) ... [2025-02-08 01:56:46,138 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 01:56:46,152 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 01:56:46,170 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-02-08 01:56:46,174 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-02-08 01:56:46,204 INFO L130 BoogieDeclarations]: Found specification of procedure aws_is_mem_zeroed [2025-02-08 01:56:46,205 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_is_mem_zeroed [2025-02-08 01:56:46,205 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-02-08 01:56:46,205 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_bounded [2025-02-08 01:56:46,205 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_bounded [2025-02-08 01:56:46,205 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_valid [2025-02-08 01:56:46,205 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_valid [2025-02-08 01:56:46,205 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2025-02-08 01:56:46,205 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2025-02-08 01:56:46,205 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2025-02-08 01:56:46,205 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2025-02-08 01:56:46,205 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2025-02-08 01:56:46,205 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2025-02-08 01:56:46,205 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2025-02-08 01:56:46,205 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-02-08 01:56:46,206 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-02-08 01:56:46,206 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2025-02-08 01:56:46,206 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2025-02-08 01:56:46,206 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2025-02-08 01:56:46,206 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2025-02-08 01:56:46,206 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2025-02-08 01:56:46,206 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2025-02-08 01:56:46,206 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2025-02-08 01:56:46,206 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-02-08 01:56:46,206 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-08 01:56:46,206 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2025-02-08 01:56:46,206 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2025-02-08 01:56:46,206 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2025-02-08 01:56:46,206 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2025-02-08 01:56:46,206 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2025-02-08 01:56:46,206 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-08 01:56:46,206 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-08 01:56:46,206 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2025-02-08 01:56:46,206 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2025-02-08 01:56:46,206 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_size_t [2025-02-08 01:56:46,206 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_size_t [2025-02-08 01:56:46,206 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2025-02-08 01:56:46,206 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2025-02-08 01:56:46,206 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2025-02-08 01:56:46,206 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2025-02-08 01:56:46,206 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2025-02-08 01:56:46,206 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2025-02-08 01:56:46,206 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2025-02-08 01:56:46,206 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_malloc [2025-02-08 01:56:46,206 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_malloc [2025-02-08 01:56:46,207 INFO L130 BoogieDeclarations]: Found specification of procedure aws_priority_queue_is_valid [2025-02-08 01:56:46,207 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_priority_queue_is_valid [2025-02-08 01:56:46,207 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_length [2025-02-08 01:56:46,207 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_length [2025-02-08 01:56:46,207 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2025-02-08 01:56:46,207 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2025-02-08 01:56:46,207 INFO L130 BoogieDeclarations]: Found specification of procedure my_memcpy [2025-02-08 01:56:46,207 INFO L138 BoogieDeclarations]: Found implementation of procedure my_memcpy [2025-02-08 01:56:46,207 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-02-08 01:56:46,207 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2025-02-08 01:56:46,207 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2025-02-08 01:56:46,207 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2025-02-08 01:56:46,207 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2025-02-08 01:56:46,207 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2025-02-08 01:56:46,207 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2025-02-08 01:56:46,207 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2025-02-08 01:56:46,207 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2025-02-08 01:56:46,207 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2025-02-08 01:56:46,207 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2025-02-08 01:56:46,207 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2025-02-08 01:56:46,207 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2025-02-08 01:56:46,207 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2025-02-08 01:56:46,207 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2025-02-08 01:56:46,207 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_using_uint64_impl [2025-02-08 01:56:46,207 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_using_uint64_impl [2025-02-08 01:56:46,207 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-02-08 01:56:46,207 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-02-08 01:56:46,207 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2025-02-08 01:56:46,207 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2025-02-08 01:56:46,208 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2025-02-08 01:56:46,208 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_array_list_has_allocated_data_member [2025-02-08 01:56:46,208 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_array_list_has_allocated_data_member [2025-02-08 01:56:46,211 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-02-08 01:56:46,211 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-02-08 01:56:46,211 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-02-08 01:56:46,211 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2025-02-08 01:56:46,211 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2025-02-08 01:56:46,211 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_get_at [2025-02-08 01:56:46,211 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_get_at [2025-02-08 01:56:46,548 INFO L257 CfgBuilder]: Building ICFG [2025-02-08 01:56:46,552 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-08 01:56:46,611 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L6935: havoc #t~malloc583.base, #t~malloc583.offset; [2025-02-08 01:56:46,616 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L263: havoc #t~nondet6; [2025-02-08 01:56:46,655 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L2590: havoc #t~ret57#1; [2025-02-08 01:56:46,820 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L6949: havoc #t~ret587;havoc #t~ite589.base, #t~ite589.offset;havoc #t~ret588.base, #t~ret588.offset; [2025-02-08 01:56:46,933 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L8319: havoc aws_priority_queue_backpointers_valid_#t~ret886#1;havoc aws_priority_queue_backpointers_valid_#t~short887#1; [2025-02-08 01:56:47,037 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L2944: call ULTIMATE.dealloc(~#required_size~0.base, ~#required_size~0.offset);havoc ~#required_size~0.base, ~#required_size~0.offset; [2025-02-08 01:56:47,041 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L261: havoc #t~nondet4; [2025-02-08 01:56:47,065 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L7421: havoc #t~ret691.base, #t~ret691.offset; [2025-02-08 01:56:47,110 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L3188: havoc #t~ret236; [2025-02-08 01:56:53,435 INFO L? ?]: Removed 149 outVars from TransFormulas that were not future-live. [2025-02-08 01:56:53,436 INFO L308 CfgBuilder]: Performing block encoding [2025-02-08 01:56:53,456 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-08 01:56:53,457 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-08 01:56:53,457 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 01:56:53 BoogieIcfgContainer [2025-02-08 01:56:53,457 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-08 01:56:53,460 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-08 01:56:53,460 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-08 01:56:53,464 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-08 01:56:53,465 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.02 01:56:43" (1/3) ... [2025-02-08 01:56:53,465 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77942615 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.02 01:56:53, skipping insertion in model container [2025-02-08 01:56:53,465 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:56:45" (2/3) ... [2025-02-08 01:56:53,466 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77942615 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.02 01:56:53, skipping insertion in model container [2025-02-08 01:56:53,466 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 01:56:53" (3/3) ... [2025-02-08 01:56:53,467 INFO L128 eAbstractionObserver]: Analyzing ICFG aws_priority_queue_s_remove_node_harness.i [2025-02-08 01:56:53,481 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-08 01:56:53,483 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG aws_priority_queue_s_remove_node_harness.i that has 20 procedures, 238 locations, 1 initial locations, 2 loop locations, and 1 error locations. [2025-02-08 01:56:53,544 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-08 01:56:53,560 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=PETRI_NET, 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;@7a1459b9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-08 01:56:53,560 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-02-08 01:56:53,565 INFO L276 IsEmpty]: Start isEmpty. Operand has 238 states, 150 states have (on average 1.28) internal successors, (192), 153 states have internal predecessors, (192), 65 states have call successors, (65), 19 states have call predecessors, (65), 19 states have return successors, (65), 65 states have call predecessors, (65), 65 states have call successors, (65) [2025-02-08 01:56:53,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2025-02-08 01:56:53,575 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 01:56:53,576 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 6, 6, 6, 2, 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] [2025-02-08 01:56:53,576 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-08 01:56:53,580 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 01:56:53,581 INFO L85 PathProgramCache]: Analyzing trace with hash -1686968201, now seen corresponding path program 1 times [2025-02-08 01:56:53,587 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 01:56:53,587 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [662397135] [2025-02-08 01:56:53,587 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 01:56:53,588 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 01:56:58,812 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 144 statements into 1 equivalence classes. [2025-02-08 01:56:59,316 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 144 of 144 statements. [2025-02-08 01:56:59,317 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 01:56:59,317 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 01:57:02,457 INFO L134 CoverageAnalysis]: Checked inductivity of 151 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2025-02-08 01:57:02,458 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 01:57:02,458 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [662397135] [2025-02-08 01:57:02,459 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [662397135] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 01:57:02,460 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1572750825] [2025-02-08 01:57:02,460 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 01:57:02,460 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 01:57:02,461 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 01:57:02,464 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 01:57:02,467 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-02-08 01:57:07,115 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 144 statements into 1 equivalence classes. [2025-02-08 01:57:07,763 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 144 of 144 statements. [2025-02-08 01:57:07,763 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 01:57:07,763 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 01:57:07,785 INFO L256 TraceCheckSpWp]: Trace formula consists of 4449 conjuncts, 18 conjuncts are in the unsatisfiable core [2025-02-08 01:57:07,796 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 01:57:08,432 INFO L134 CoverageAnalysis]: Checked inductivity of 151 backedges. 24 proven. 3 refuted. 0 times theorem prover too weak. 124 trivial. 0 not checked. [2025-02-08 01:57:08,432 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 01:57:10,470 INFO L134 CoverageAnalysis]: Checked inductivity of 151 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2025-02-08 01:57:10,471 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1572750825] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-08 01:57:10,471 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-08 01:57:10,471 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 7 [2025-02-08 01:57:10,473 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1439103055] [2025-02-08 01:57:10,474 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-08 01:57:10,478 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-02-08 01:57:10,478 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 01:57:10,498 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-02-08 01:57:10,498 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2025-02-08 01:57:10,502 INFO L87 Difference]: Start difference. First operand has 238 states, 150 states have (on average 1.28) internal successors, (192), 153 states have internal predecessors, (192), 65 states have call successors, (65), 19 states have call predecessors, (65), 19 states have return successors, (65), 65 states have call predecessors, (65), 65 states have call successors, (65) Second operand has 7 states, 7 states have (on average 8.0) internal successors, (56), 6 states have internal predecessors, (56), 3 states have call successors, (25), 2 states have call predecessors, (25), 3 states have return successors, (24), 4 states have call predecessors, (24), 3 states have call successors, (24) [2025-02-08 01:57:14,574 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2025-02-08 01:57:19,055 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.48s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2025-02-08 01:57:23,535 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.48s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2025-02-08 01:57:24,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 01:57:24,808 INFO L93 Difference]: Finished difference Result 477 states and 691 transitions. [2025-02-08 01:57:24,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-02-08 01:57:24,810 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.0) internal successors, (56), 6 states have internal predecessors, (56), 3 states have call successors, (25), 2 states have call predecessors, (25), 3 states have return successors, (24), 4 states have call predecessors, (24), 3 states have call successors, (24) Word has length 144 [2025-02-08 01:57:24,811 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 01:57:24,820 INFO L225 Difference]: With dead ends: 477 [2025-02-08 01:57:24,820 INFO L226 Difference]: Without dead ends: 252 [2025-02-08 01:57:24,829 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 294 GetRequests, 288 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2025-02-08 01:57:24,831 INFO L435 NwaCegarLoop]: 315 mSDtfsCounter, 10 mSDsluCounter, 1567 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 3 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 1882 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.1s IncrementalHoareTripleChecker+Time [2025-02-08 01:57:24,832 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 1882 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 34 Invalid, 3 Unknown, 0 Unchecked, 14.1s Time] [2025-02-08 01:57:24,846 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 252 states. [2025-02-08 01:57:24,900 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 252 to 248. [2025-02-08 01:57:24,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 248 states, 159 states have (on average 1.2641509433962264) internal successors, (201), 161 states have internal predecessors, (201), 68 states have call successors, (68), 19 states have call predecessors, (68), 20 states have return successors, (71), 67 states have call predecessors, (71), 66 states have call successors, (71) [2025-02-08 01:57:24,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 248 states to 248 states and 340 transitions. [2025-02-08 01:57:24,917 INFO L78 Accepts]: Start accepts. Automaton has 248 states and 340 transitions. Word has length 144 [2025-02-08 01:57:24,919 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 01:57:24,919 INFO L471 AbstractCegarLoop]: Abstraction has 248 states and 340 transitions. [2025-02-08 01:57:24,919 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.0) internal successors, (56), 6 states have internal predecessors, (56), 3 states have call successors, (25), 2 states have call predecessors, (25), 3 states have return successors, (24), 4 states have call predecessors, (24), 3 states have call successors, (24) [2025-02-08 01:57:24,921 INFO L276 IsEmpty]: Start isEmpty. Operand 248 states and 340 transitions. [2025-02-08 01:57:24,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2025-02-08 01:57:24,926 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 01:57:24,926 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 6, 6, 6, 2, 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] [2025-02-08 01:57:24,950 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2025-02-08 01:57:25,127 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2025-02-08 01:57:25,127 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-08 01:57:25,128 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 01:57:25,128 INFO L85 PathProgramCache]: Analyzing trace with hash 2097464918, now seen corresponding path program 1 times [2025-02-08 01:57:25,128 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 01:57:25,128 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [851910739] [2025-02-08 01:57:25,128 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 01:57:25,129 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 01:57:29,160 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 144 statements into 1 equivalence classes. [2025-02-08 01:57:30,770 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 144 of 144 statements. [2025-02-08 01:57:30,771 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 01:57:30,771 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 01:57:34,208 INFO L134 CoverageAnalysis]: Checked inductivity of 151 backedges. 9 proven. 8 refuted. 0 times theorem prover too weak. 134 trivial. 0 not checked. [2025-02-08 01:57:34,211 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 01:57:34,211 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [851910739] [2025-02-08 01:57:34,211 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [851910739] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 01:57:34,212 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1659454772] [2025-02-08 01:57:34,212 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 01:57:34,213 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 01:57:34,213 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 01:57:34,216 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 01:57:34,218 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-02-08 01:57:38,712 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 144 statements into 1 equivalence classes. [2025-02-08 01:57:39,310 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 144 of 144 statements. [2025-02-08 01:57:39,310 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 01:57:39,310 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 01:57:39,335 INFO L256 TraceCheckSpWp]: Trace formula consists of 4446 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-02-08 01:57:39,346 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 01:57:39,857 INFO L134 CoverageAnalysis]: Checked inductivity of 151 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 132 trivial. 0 not checked. [2025-02-08 01:57:39,858 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-08 01:57:39,858 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1659454772] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 01:57:39,858 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-08 01:57:39,858 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [6] total 8 [2025-02-08 01:57:39,858 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1724471215] [2025-02-08 01:57:39,858 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 01:57:39,859 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-08 01:57:39,859 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 01:57:39,860 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-08 01:57:39,860 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2025-02-08 01:57:39,860 INFO L87 Difference]: Start difference. First operand 248 states and 340 transitions. Second operand has 5 states, 4 states have (on average 13.25) internal successors, (53), 5 states have internal predecessors, (53), 3 states have call successors, (23), 2 states have call predecessors, (23), 3 states have return successors, (22), 2 states have call predecessors, (22), 3 states have call successors, (22) [2025-02-08 01:57:43,924 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2025-02-08 01:57:45,745 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 01:57:45,745 INFO L93 Difference]: Finished difference Result 396 states and 542 transitions. [2025-02-08 01:57:45,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-08 01:57:45,746 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 13.25) internal successors, (53), 5 states have internal predecessors, (53), 3 states have call successors, (23), 2 states have call predecessors, (23), 3 states have return successors, (22), 2 states have call predecessors, (22), 3 states have call successors, (22) Word has length 144 [2025-02-08 01:57:45,747 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 01:57:45,749 INFO L225 Difference]: With dead ends: 396 [2025-02-08 01:57:45,749 INFO L226 Difference]: Without dead ends: 233 [2025-02-08 01:57:45,751 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 149 GetRequests, 143 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2025-02-08 01:57:45,751 INFO L435 NwaCegarLoop]: 297 mSDtfsCounter, 0 mSDsluCounter, 857 mSDsCounter, 0 mSdLazyCounter, 85 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1154 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 85 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time [2025-02-08 01:57:45,751 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1154 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 85 Invalid, 1 Unknown, 0 Unchecked, 5.8s Time] [2025-02-08 01:57:45,752 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 233 states. [2025-02-08 01:57:45,765 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 233 to 233. [2025-02-08 01:57:45,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 233 states, 148 states have (on average 1.2567567567567568) internal successors, (186), 151 states have internal predecessors, (186), 64 states have call successors, (64), 19 states have call predecessors, (64), 20 states have return successors, (64), 62 states have call predecessors, (64), 62 states have call successors, (64) [2025-02-08 01:57:45,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 233 states to 233 states and 314 transitions. [2025-02-08 01:57:45,768 INFO L78 Accepts]: Start accepts. Automaton has 233 states and 314 transitions. Word has length 144 [2025-02-08 01:57:45,771 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 01:57:45,771 INFO L471 AbstractCegarLoop]: Abstraction has 233 states and 314 transitions. [2025-02-08 01:57:45,771 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 13.25) internal successors, (53), 5 states have internal predecessors, (53), 3 states have call successors, (23), 2 states have call predecessors, (23), 3 states have return successors, (22), 2 states have call predecessors, (22), 3 states have call successors, (22) [2025-02-08 01:57:45,771 INFO L276 IsEmpty]: Start isEmpty. Operand 233 states and 314 transitions. [2025-02-08 01:57:45,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2025-02-08 01:57:45,773 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 01:57:45,773 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 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] [2025-02-08 01:57:45,795 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2025-02-08 01:57:45,976 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 01:57:45,976 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-08 01:57:45,977 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 01:57:45,977 INFO L85 PathProgramCache]: Analyzing trace with hash 1575402008, now seen corresponding path program 1 times [2025-02-08 01:57:45,977 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 01:57:45,977 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [436699977] [2025-02-08 01:57:45,977 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 01:57:45,977 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 01:57:49,745 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 155 statements into 1 equivalence classes. [2025-02-08 01:57:50,059 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 155 of 155 statements. [2025-02-08 01:57:50,059 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 01:57:50,059 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 01:57:52,608 INFO L134 CoverageAnalysis]: Checked inductivity of 175 backedges. 9 proven. 11 refuted. 0 times theorem prover too weak. 155 trivial. 0 not checked. [2025-02-08 01:57:52,608 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 01:57:52,609 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [436699977] [2025-02-08 01:57:52,609 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [436699977] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 01:57:52,609 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2109533504] [2025-02-08 01:57:52,609 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 01:57:52,609 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 01:57:52,609 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 01:57:52,611 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 01:57:52,612 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2025-02-08 01:57:57,353 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 155 statements into 1 equivalence classes. [2025-02-08 01:57:57,864 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 155 of 155 statements. [2025-02-08 01:57:57,864 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 01:57:57,864 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 01:57:57,884 INFO L256 TraceCheckSpWp]: Trace formula consists of 4484 conjuncts, 64 conjuncts are in the unsatisfiable core [2025-02-08 01:57:57,892 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 01:57:57,948 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2025-02-08 01:57:58,004 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2025-02-08 01:58:02,095 WARN L873 $PredicateComparison]: unable to prove that (exists ((v_ensure_array_list_has_allocated_data_member_~list.offset_14 Int)) (and (= (store |c_old(#memory_$Pointer$#3.base)| |c_ensure_array_list_has_allocated_data_member_#in~list.base| (store (select |c_old(#memory_$Pointer$#3.base)| |c_ensure_array_list_has_allocated_data_member_#in~list.base|) v_ensure_array_list_has_allocated_data_member_~list.offset_14 (select (select |c_#memory_$Pointer$#3.base| |c_ensure_array_list_has_allocated_data_member_#in~list.base|) v_ensure_array_list_has_allocated_data_member_~list.offset_14))) |c_#memory_$Pointer$#3.base|) (<= v_ensure_array_list_has_allocated_data_member_~list.offset_14 |c_ensure_array_list_has_allocated_data_member_#in~list.offset|) (= (store |c_old(#memory_$Pointer$#3.offset)| |c_ensure_array_list_has_allocated_data_member_#in~list.base| (store (select |c_old(#memory_$Pointer$#3.offset)| |c_ensure_array_list_has_allocated_data_member_#in~list.base|) v_ensure_array_list_has_allocated_data_member_~list.offset_14 (select (select |c_#memory_$Pointer$#3.offset| |c_ensure_array_list_has_allocated_data_member_#in~list.base|) v_ensure_array_list_has_allocated_data_member_~list.offset_14))) |c_#memory_$Pointer$#3.offset|))) is different from true [2025-02-08 01:58:02,254 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-02-08 01:58:02,256 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2025-02-08 01:58:02,346 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-02-08 01:58:02,347 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13