./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 551b0097 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-?-551b009-m [2025-01-09 17:26:33,319 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-01-09 17:26:33,385 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2025-01-09 17:26:33,396 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-01-09 17:26:33,396 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-01-09 17:26:33,419 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-01-09 17:26:33,420 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-01-09 17:26:33,421 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-01-09 17:26:33,421 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-01-09 17:26:33,421 INFO L153 SettingsManager]: * Use memory slicer=true [2025-01-09 17:26:33,422 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-01-09 17:26:33,422 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-01-09 17:26:33,422 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-01-09 17:26:33,422 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-01-09 17:26:33,422 INFO L153 SettingsManager]: * Use SBE=true [2025-01-09 17:26:33,423 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-01-09 17:26:33,423 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-01-09 17:26:33,423 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-01-09 17:26:33,423 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-01-09 17:26:33,423 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-01-09 17:26:33,423 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-01-09 17:26:33,423 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-01-09 17:26:33,423 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-01-09 17:26:33,423 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-01-09 17:26:33,423 INFO L153 SettingsManager]: * Use constant arrays=true [2025-01-09 17:26:33,423 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-01-09 17:26:33,423 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 17:26:33,423 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-09 17:26:33,423 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 17:26:33,423 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 17:26:33,423 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-01-09 17:26:33,423 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 17:26:33,423 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-09 17:26:33,423 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 17:26:33,423 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 17:26:33,423 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-01-09 17:26:33,423 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-01-09 17:26:33,424 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-01-09 17:26:33,424 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-01-09 17:26:33,424 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-01-09 17:26:33,424 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-01-09 17:26:33,424 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-01-09 17:26:33,424 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-01-09 17:26:33,424 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-01-09 17:26:33,424 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-01-09 17:26:33,424 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 [2025-01-09 17:26:33,693 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-01-09 17:26:33,702 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-01-09 17:26:33,706 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-01-09 17:26:33,709 INFO L270 PluginConnector]: Initializing CDTParser... [2025-01-09 17:26:33,709 INFO L274 PluginConnector]: CDTParser initialized [2025-01-09 17:26:33,710 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_priority_queue_s_remove_node_harness.i [2025-01-09 17:26:34,886 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/351c4d81f/3fc0e8806d384cc8bd837e847b91a55b/FLAG06bca13c9 [2025-01-09 17:26:35,307 INFO L384 CDTParser]: Found 1 translation units. [2025-01-09 17:26:35,308 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_priority_queue_s_remove_node_harness.i [2025-01-09 17:26:35,337 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/351c4d81f/3fc0e8806d384cc8bd837e847b91a55b/FLAG06bca13c9 [2025-01-09 17:26:35,453 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/351c4d81f/3fc0e8806d384cc8bd837e847b91a55b [2025-01-09 17:26:35,455 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-01-09 17:26:35,456 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-01-09 17:26:35,457 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-01-09 17:26:35,457 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-01-09 17:26:35,459 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-01-09 17:26:35,460 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 05:26:35" (1/1) ... [2025-01-09 17:26:35,461 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@50843f34 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:26:35, skipping insertion in model container [2025-01-09 17:26:35,461 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 05:26:35" (1/1) ... [2025-01-09 17:26:35,537 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-01-09 17:26:35,764 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] [2025-01-09 17:26:35,773 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] [2025-01-09 17:26:36,827 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:26:36,828 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:26:36,828 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:26:36,829 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:26:36,830 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:26:36,840 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:26:36,841 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:26:36,842 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:26:36,843 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:26:36,844 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:26:36,845 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:26:36,845 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:26:36,845 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:26:37,360 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:26:37,367 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:26:37,465 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:26:37,466 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:26:37,466 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:26:37,466 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:26:37,466 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:26:37,467 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:26:37,468 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:26:37,469 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:26:37,469 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:26:37,469 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:26:37,470 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:26:37,470 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:26:37,470 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:26:37,476 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:26:37,477 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:26:37,477 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:26:37,479 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:26:37,482 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:26:37,486 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:26:37,493 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:26:37,495 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:26:37,495 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:26:37,515 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:26:37,522 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:26:37,523 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:26:37,523 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:26:37,524 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:26:37,525 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:26:37,532 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 17:26:37,575 INFO L200 MainTranslator]: Completed pre-run [2025-01-09 17:26:37,596 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] [2025-01-09 17:26:37,597 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] [2025-01-09 17:26:37,640 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:26:37,643 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:26:37,644 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:26:37,645 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:26:37,646 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:26:37,655 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:26:37,656 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:26:37,657 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:26:37,657 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:26:37,660 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:26:37,660 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:26:37,661 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:26:37,662 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:26:37,786 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:26:37,790 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:26:37,797 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [7818-7829] [2025-01-09 17:26:37,864 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:26:37,865 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:26:37,865 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:26:37,865 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:26:37,865 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:26:37,865 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:26:37,867 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:26:37,868 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:26:37,869 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:26:37,869 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:26:37,869 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:26:37,869 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:26:37,869 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:26:37,870 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:26:37,870 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:26:37,870 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:26:37,870 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:26:37,875 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:26:37,876 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:26:37,881 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:26:37,884 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:26:37,885 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:26:37,894 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:26:37,896 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:26:37,896 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:26:37,896 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:26:37,897 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:26:37,898 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:26:37,899 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 17:26:38,118 INFO L204 MainTranslator]: Completed translation [2025-01-09 17:26:38,119 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:26:38 WrapperNode [2025-01-09 17:26:38,120 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-01-09 17:26:38,122 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-01-09 17:26:38,123 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-01-09 17:26:38,123 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-01-09 17:26:38,131 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:26:38" (1/1) ... [2025-01-09 17:26:38,219 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:26:38" (1/1) ... [2025-01-09 17:26:38,293 INFO L138 Inliner]: procedures = 688, calls = 1968, calls flagged for inlining = 59, calls inlined = 9, statements flattened = 746 [2025-01-09 17:26:38,296 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-01-09 17:26:38,297 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-01-09 17:26:38,297 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-01-09 17:26:38,297 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-01-09 17:26:38,306 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:26:38" (1/1) ... [2025-01-09 17:26:38,306 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:26:38" (1/1) ... [2025-01-09 17:26:38,317 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:26:38" (1/1) ... [2025-01-09 17:26:38,407 INFO L175 MemorySlicer]: Split 356 memory accesses to 5 slices as follows [2, 3, 76, 262, 13]. 74 percent of accesses are in the largest equivalence class. The 25 initializations are split as follows [2, 1, 0, 11, 11]. The 262 writes are split as follows [0, 1, 19, 242, 0]. [2025-01-09 17:26:38,408 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:26:38" (1/1) ... [2025-01-09 17:26:38,408 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:26:38" (1/1) ... [2025-01-09 17:26:38,438 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:26:38" (1/1) ... [2025-01-09 17:26:38,441 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:26:38" (1/1) ... [2025-01-09 17:26:38,446 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:26:38" (1/1) ... [2025-01-09 17:26:38,454 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:26:38" (1/1) ... [2025-01-09 17:26:38,459 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:26:38" (1/1) ... [2025-01-09 17:26:38,474 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-01-09 17:26:38,475 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-01-09 17:26:38,475 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-01-09 17:26:38,475 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-01-09 17:26:38,476 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:26:38" (1/1) ... [2025-01-09 17:26:38,486 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 17:26:38,500 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 17:26:38,523 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) [2025-01-09 17:26:38,534 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 [2025-01-09 17:26:38,556 INFO L130 BoogieDeclarations]: Found specification of procedure aws_is_mem_zeroed [2025-01-09 17:26:38,557 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_is_mem_zeroed [2025-01-09 17:26:38,557 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-01-09 17:26:38,557 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_bounded [2025-01-09 17:26:38,557 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_bounded [2025-01-09 17:26:38,557 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_valid [2025-01-09 17:26:38,557 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_valid [2025-01-09 17:26:38,558 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2025-01-09 17:26:38,558 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2025-01-09 17:26:38,558 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2025-01-09 17:26:38,559 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2025-01-09 17:26:38,559 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2025-01-09 17:26:38,559 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2025-01-09 17:26:38,559 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2025-01-09 17:26:38,559 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-01-09 17:26:38,559 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-01-09 17:26:38,560 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2025-01-09 17:26:38,560 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2025-01-09 17:26:38,560 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2025-01-09 17:26:38,560 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2025-01-09 17:26:38,560 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2025-01-09 17:26:38,560 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2025-01-09 17:26:38,560 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2025-01-09 17:26:38,560 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-01-09 17:26:38,560 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-01-09 17:26:38,560 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2025-01-09 17:26:38,561 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2025-01-09 17:26:38,561 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2025-01-09 17:26:38,561 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2025-01-09 17:26:38,561 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2025-01-09 17:26:38,561 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-01-09 17:26:38,561 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-01-09 17:26:38,561 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2025-01-09 17:26:38,561 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2025-01-09 17:26:38,561 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_size_t [2025-01-09 17:26:38,561 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_size_t [2025-01-09 17:26:38,561 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2025-01-09 17:26:38,561 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2025-01-09 17:26:38,561 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2025-01-09 17:26:38,561 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2025-01-09 17:26:38,561 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2025-01-09 17:26:38,562 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2025-01-09 17:26:38,562 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2025-01-09 17:26:38,562 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_malloc [2025-01-09 17:26:38,562 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_malloc [2025-01-09 17:26:38,562 INFO L130 BoogieDeclarations]: Found specification of procedure aws_priority_queue_is_valid [2025-01-09 17:26:38,562 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_priority_queue_is_valid [2025-01-09 17:26:38,562 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_length [2025-01-09 17:26:38,562 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_length [2025-01-09 17:26:38,562 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2025-01-09 17:26:38,562 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2025-01-09 17:26:38,562 INFO L130 BoogieDeclarations]: Found specification of procedure my_memcpy [2025-01-09 17:26:38,562 INFO L138 BoogieDeclarations]: Found implementation of procedure my_memcpy [2025-01-09 17:26:38,562 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-01-09 17:26:38,562 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2025-01-09 17:26:38,562 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2025-01-09 17:26:38,562 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2025-01-09 17:26:38,562 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2025-01-09 17:26:38,562 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2025-01-09 17:26:38,562 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2025-01-09 17:26:38,562 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2025-01-09 17:26:38,562 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2025-01-09 17:26:38,562 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2025-01-09 17:26:38,562 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2025-01-09 17:26:38,563 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2025-01-09 17:26:38,563 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2025-01-09 17:26:38,563 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2025-01-09 17:26:38,563 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2025-01-09 17:26:38,563 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_using_uint64_impl [2025-01-09 17:26:38,563 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_using_uint64_impl [2025-01-09 17:26:38,563 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-01-09 17:26:38,563 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-01-09 17:26:38,563 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2025-01-09 17:26:38,563 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2025-01-09 17:26:38,563 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2025-01-09 17:26:38,563 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_array_list_has_allocated_data_member [2025-01-09 17:26:38,563 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_array_list_has_allocated_data_member [2025-01-09 17:26:38,563 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-01-09 17:26:38,563 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-01-09 17:26:38,563 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-01-09 17:26:38,566 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2025-01-09 17:26:38,566 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2025-01-09 17:26:38,566 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_get_at [2025-01-09 17:26:38,566 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_get_at [2025-01-09 17:26:38,858 INFO L234 CfgBuilder]: Building ICFG [2025-01-09 17:26:38,860 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-01-09 17:26:45,267 INFO L? ?]: Removed 157 outVars from TransFormulas that were not future-live. [2025-01-09 17:26:45,267 INFO L283 CfgBuilder]: Performing block encoding [2025-01-09 17:26:45,287 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-01-09 17:26:45,287 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2025-01-09 17:26:45,288 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 05:26:45 BoogieIcfgContainer [2025-01-09 17:26:45,288 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-01-09 17:26:45,290 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-01-09 17:26:45,290 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-01-09 17:26:45,294 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-01-09 17:26:45,294 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.01 05:26:35" (1/3) ... [2025-01-09 17:26:45,295 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5859cc55 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 05:26:45, skipping insertion in model container [2025-01-09 17:26:45,295 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:26:38" (2/3) ... [2025-01-09 17:26:45,295 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5859cc55 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 05:26:45, skipping insertion in model container [2025-01-09 17:26:45,295 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 05:26:45" (3/3) ... [2025-01-09 17:26:45,296 INFO L128 eAbstractionObserver]: Analyzing ICFG aws_priority_queue_s_remove_node_harness.i [2025-01-09 17:26:45,311 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-01-09 17:26:45,313 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG aws_priority_queue_s_remove_node_harness.i that has 20 procedures, 244 locations, 1 initial locations, 2 loop locations, and 1 error locations. [2025-01-09 17:26:45,378 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-01-09 17:26:45,394 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;@5f19968d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-01-09 17:26:45,394 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-01-09 17:26:45,399 INFO L276 IsEmpty]: Start isEmpty. Operand has 244 states, 158 states have (on average 1.2658227848101267) internal successors, (200), 159 states have internal predecessors, (200), 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) [2025-01-09 17:26:45,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2025-01-09 17:26:45,412 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 17:26:45,413 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, 1, 1, 1] [2025-01-09 17:26:45,414 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 17:26:45,418 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 17:26:45,419 INFO L85 PathProgramCache]: Analyzing trace with hash 9993965, now seen corresponding path program 1 times [2025-01-09 17:26:45,425 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 17:26:45,425 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1765008481] [2025-01-09 17:26:45,426 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 17:26:45,426 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 17:26:49,948 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 147 statements into 1 equivalence classes. [2025-01-09 17:26:50,346 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 147 of 147 statements. [2025-01-09 17:26:50,347 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 17:26:50,347 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 17:26:50,849 INFO L134 CoverageAnalysis]: Checked inductivity of 151 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 141 trivial. 0 not checked. [2025-01-09 17:26:50,850 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 17:26:50,850 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1765008481] [2025-01-09 17:26:50,851 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1765008481] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 17:26:50,852 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1408383069] [2025-01-09 17:26:50,852 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 17:26:50,852 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 17:26:50,852 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 17:26:50,856 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) [2025-01-09 17:26:50,897 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 [2025-01-09 17:26:55,129 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 147 statements into 1 equivalence classes. [2025-01-09 17:26:55,580 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 147 of 147 statements. [2025-01-09 17:26:55,580 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 17:26:55,580 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 17:26:55,603 INFO L256 TraceCheckSpWp]: Trace formula consists of 4446 conjuncts, 1 conjuncts are in the unsatisfiable core [2025-01-09 17:26:55,611 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 17:26:55,635 INFO L134 CoverageAnalysis]: Checked inductivity of 151 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 123 trivial. 0 not checked. [2025-01-09 17:26:55,635 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 17:26:55,636 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1408383069] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 17:26:55,639 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-09 17:26:55,639 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2025-01-09 17:26:55,641 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [361431156] [2025-01-09 17:26:55,641 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 17:26:55,644 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-01-09 17:26:55,644 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 17:26:55,658 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-01-09 17:26:55,659 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-01-09 17:26:55,661 INFO L87 Difference]: Start difference. First operand has 244 states, 158 states have (on average 1.2658227848101267) internal successors, (200), 159 states have internal predecessors, (200), 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 2 states, 2 states have (on average 27.0) internal successors, (54), 2 states have internal predecessors, (54), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2025-01-09 17:26:55,715 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 17:26:55,716 INFO L93 Difference]: Finished difference Result 465 states and 664 transitions. [2025-01-09 17:26:55,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-09 17:26:55,718 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 27.0) internal successors, (54), 2 states have internal predecessors, (54), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 147 [2025-01-09 17:26:55,718 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 17:26:55,725 INFO L225 Difference]: With dead ends: 465 [2025-01-09 17:26:55,726 INFO L226 Difference]: Without dead ends: 239 [2025-01-09 17:26:55,731 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 148 GetRequests, 148 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-01-09 17:26:55,733 INFO L435 NwaCegarLoop]: 328 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 328 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-01-09 17:26:55,734 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 328 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 17:26:55,743 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 239 states. [2025-01-09 17:26:55,770 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 239 to 239. [2025-01-09 17:26:55,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 239 states, 154 states have (on average 1.2597402597402598) internal successors, (194), 155 states have internal predecessors, (194), 65 states have call successors, (65), 19 states have call predecessors, (65), 19 states have return successors, (64), 64 states have call predecessors, (64), 64 states have call successors, (64) [2025-01-09 17:26:55,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 239 states to 239 states and 323 transitions. [2025-01-09 17:26:55,780 INFO L78 Accepts]: Start accepts. Automaton has 239 states and 323 transitions. Word has length 147 [2025-01-09 17:26:55,782 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 17:26:55,782 INFO L471 AbstractCegarLoop]: Abstraction has 239 states and 323 transitions. [2025-01-09 17:26:55,783 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 27.0) internal successors, (54), 2 states have internal predecessors, (54), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2025-01-09 17:26:55,783 INFO L276 IsEmpty]: Start isEmpty. Operand 239 states and 323 transitions. [2025-01-09 17:26:55,787 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2025-01-09 17:26:55,790 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 17:26:55,791 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, 1, 1, 1] [2025-01-09 17:26:55,806 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2025-01-09 17:26:55,992 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 [2025-01-09 17:26:55,992 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 17:26:55,993 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 17:26:55,993 INFO L85 PathProgramCache]: Analyzing trace with hash 576482289, now seen corresponding path program 1 times [2025-01-09 17:26:55,993 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 17:26:55,993 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1426530201] [2025-01-09 17:26:55,993 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 17:26:55,993 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 17:26:59,755 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 147 statements into 1 equivalence classes. [2025-01-09 17:26:59,892 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 147 of 147 statements. [2025-01-09 17:26:59,892 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 17:26:59,892 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 17:27:00,370 INFO L134 CoverageAnalysis]: Checked inductivity of 151 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2025-01-09 17:27:00,371 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 17:27:00,371 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1426530201] [2025-01-09 17:27:00,371 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1426530201] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 17:27:00,371 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [240646296] [2025-01-09 17:27:00,371 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 17:27:00,371 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 17:27:00,371 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 17:27:00,375 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) [2025-01-09 17:27:00,377 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 [2025-01-09 17:27:04,796 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 147 statements into 1 equivalence classes. [2025-01-09 17:27:05,223 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 147 of 147 statements. [2025-01-09 17:27:05,223 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 17:27:05,223 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 17:27:05,247 INFO L256 TraceCheckSpWp]: Trace formula consists of 4446 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-01-09 17:27:05,254 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 17:27:05,280 INFO L134 CoverageAnalysis]: Checked inductivity of 151 backedges. 41 proven. 0 refuted. 0 times theorem prover too weak. 110 trivial. 0 not checked. [2025-01-09 17:27:05,280 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 17:27:05,280 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [240646296] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 17:27:05,280 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-09 17:27:05,280 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 3 [2025-01-09 17:27:05,280 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [4304545] [2025-01-09 17:27:05,280 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 17:27:05,282 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-09 17:27:05,282 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 17:27:05,283 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-09 17:27:05,283 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-09 17:27:05,283 INFO L87 Difference]: Start difference. First operand 239 states and 323 transitions. Second operand has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2025-01-09 17:27:05,357 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 17:27:05,360 INFO L93 Difference]: Finished difference Result 454 states and 616 transitions. [2025-01-09 17:27:05,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-09 17:27:05,360 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 147 [2025-01-09 17:27:05,361 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 17:27:05,363 INFO L225 Difference]: With dead ends: 454 [2025-01-09 17:27:05,363 INFO L226 Difference]: Without dead ends: 240 [2025-01-09 17:27:05,365 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 149 GetRequests, 148 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-09 17:27:05,365 INFO L435 NwaCegarLoop]: 322 mSDtfsCounter, 0 mSDsluCounter, 318 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 640 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-01-09 17:27:05,366 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 640 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 17:27:05,366 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 240 states. [2025-01-09 17:27:05,377 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 240 to 240. [2025-01-09 17:27:05,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 240 states, 155 states have (on average 1.2580645161290323) internal successors, (195), 156 states have internal predecessors, (195), 65 states have call successors, (65), 19 states have call predecessors, (65), 19 states have return successors, (64), 64 states have call predecessors, (64), 64 states have call successors, (64) [2025-01-09 17:27:05,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 240 states to 240 states and 324 transitions. [2025-01-09 17:27:05,380 INFO L78 Accepts]: Start accepts. Automaton has 240 states and 324 transitions. Word has length 147 [2025-01-09 17:27:05,380 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 17:27:05,380 INFO L471 AbstractCegarLoop]: Abstraction has 240 states and 324 transitions. [2025-01-09 17:27:05,381 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2025-01-09 17:27:05,381 INFO L276 IsEmpty]: Start isEmpty. Operand 240 states and 324 transitions. [2025-01-09 17:27:05,382 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2025-01-09 17:27:05,382 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 17:27:05,383 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, 1, 1, 1] [2025-01-09 17:27:05,399 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2025-01-09 17:27:05,583 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 [2025-01-09 17:27:05,584 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 17:27:05,584 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 17:27:05,584 INFO L85 PathProgramCache]: Analyzing trace with hash 1392973745, now seen corresponding path program 1 times [2025-01-09 17:27:05,584 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 17:27:05,584 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1716385635] [2025-01-09 17:27:05,584 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 17:27:05,585 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 17:27:09,349 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 147 statements into 1 equivalence classes. [2025-01-09 17:27:09,481 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 147 of 147 statements. [2025-01-09 17:27:09,483 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 17:27:09,484 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 17:27:11,257 INFO L134 CoverageAnalysis]: Checked inductivity of 151 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2025-01-09 17:27:11,257 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 17:27:11,257 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1716385635] [2025-01-09 17:27:11,257 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1716385635] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 17:27:11,257 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [256474342] [2025-01-09 17:27:11,257 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 17:27:11,257 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 17:27:11,257 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 17:27:11,259 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) [2025-01-09 17:27:11,260 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 [2025-01-09 17:27:15,247 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 147 statements into 1 equivalence classes. [2025-01-09 17:27:15,640 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 147 of 147 statements. [2025-01-09 17:27:15,640 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 17:27:15,640 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 17:27:15,662 INFO L256 TraceCheckSpWp]: Trace formula consists of 4452 conjuncts, 18 conjuncts are in the unsatisfiable core [2025-01-09 17:27:15,667 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 17:27:16,112 INFO L134 CoverageAnalysis]: Checked inductivity of 151 backedges. 24 proven. 3 refuted. 0 times theorem prover too weak. 124 trivial. 0 not checked. [2025-01-09 17:27:16,113 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-09 17:27:17,801 INFO L134 CoverageAnalysis]: Checked inductivity of 151 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2025-01-09 17:27:17,802 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [256474342] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-09 17:27:17,802 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-09 17:27:17,802 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 7 [2025-01-09 17:27:17,802 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [941034755] [2025-01-09 17:27:17,802 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-09 17:27:17,802 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-01-09 17:27:17,802 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 17:27:17,803 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-01-09 17:27:17,803 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2025-01-09 17:27:17,803 INFO L87 Difference]: Start difference. First operand 240 states and 324 transitions. Second operand has 7 states, 7 states have (on average 8.428571428571429) internal successors, (59), 6 states have internal predecessors, (59), 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) [2025-01-09 17:27:18,250 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 17:27:18,251 INFO L93 Difference]: Finished difference Result 416 states and 571 transitions. [2025-01-09 17:27:18,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-01-09 17:27:18,251 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.428571428571429) internal successors, (59), 6 states have internal predecessors, (59), 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 147 [2025-01-09 17:27:18,252 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 17:27:18,254 INFO L225 Difference]: With dead ends: 416 [2025-01-09 17:27:18,254 INFO L226 Difference]: Without dead ends: 262 [2025-01-09 17:27:18,255 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 300 GetRequests, 294 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2025-01-09 17:27:18,256 INFO L435 NwaCegarLoop]: 318 mSDtfsCounter, 10 mSDsluCounter, 1585 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 1903 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-01-09 17:27:18,256 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 1903 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-01-09 17:27:18,257 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 262 states. [2025-01-09 17:27:18,268 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 262 to 258. [2025-01-09 17:27:18,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 258 states, 168 states have (on average 1.255952380952381) internal successors, (211), 169 states have internal predecessors, (211), 69 states have call successors, (69), 19 states have call predecessors, (69), 20 states have return successors, (73), 69 states have call predecessors, (73), 68 states have call successors, (73) [2025-01-09 17:27:18,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 258 states to 258 states and 353 transitions. [2025-01-09 17:27:18,271 INFO L78 Accepts]: Start accepts. Automaton has 258 states and 353 transitions. Word has length 147 [2025-01-09 17:27:18,272 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 17:27:18,272 INFO L471 AbstractCegarLoop]: Abstraction has 258 states and 353 transitions. [2025-01-09 17:27:18,272 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.428571428571429) internal successors, (59), 6 states have internal predecessors, (59), 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) [2025-01-09 17:27:18,272 INFO L276 IsEmpty]: Start isEmpty. Operand 258 states and 353 transitions. [2025-01-09 17:27:18,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2025-01-09 17:27:18,273 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 17:27:18,274 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, 1, 1, 1] [2025-01-09 17:27:18,289 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2025-01-09 17:27:18,474 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 17:27:18,474 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 17:27:18,475 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 17:27:18,475 INFO L85 PathProgramCache]: Analyzing trace with hash 371905391, now seen corresponding path program 1 times [2025-01-09 17:27:18,475 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 17:27:18,475 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2061665882] [2025-01-09 17:27:18,475 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 17:27:18,475 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 17:27:21,973 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 147 statements into 1 equivalence classes. [2025-01-09 17:27:22,289 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 147 of 147 statements. [2025-01-09 17:27:22,290 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 17:27:22,290 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 17:27:24,189 INFO L134 CoverageAnalysis]: Checked inductivity of 151 backedges. 9 proven. 8 refuted. 0 times theorem prover too weak. 134 trivial. 0 not checked. [2025-01-09 17:27:24,189 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 17:27:24,189 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2061665882] [2025-01-09 17:27:24,189 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2061665882] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 17:27:24,189 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [772679015] [2025-01-09 17:27:24,189 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 17:27:24,189 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 17:27:24,190 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 17:27:24,195 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-09 17:27:24,198 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2025-01-09 17:27:28,301 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 147 statements into 1 equivalence classes. [2025-01-09 17:27:28,694 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 147 of 147 statements. [2025-01-09 17:27:28,695 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 17:27:28,695 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 17:27:28,715 INFO L256 TraceCheckSpWp]: Trace formula consists of 4449 conjuncts, 97 conjuncts are in the unsatisfiable core [2025-01-09 17:27:28,723 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 17:27:28,780 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 [2025-01-09 17:27:28,847 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 [2025-01-09 17:27:33,642 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 31 treesize of output 15 [2025-01-09 17:27:33,721 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-01-09 17:27:33,966 INFO L349 Elim1Store]: treesize reduction 39, result has 32.8 percent of original size [2025-01-09 17:27:33,967 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 38 treesize of output 35 [2025-01-09 17:27:34,032 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-01-09 17:27:34,267 INFO L349 Elim1Store]: treesize reduction 39, result has 32.8 percent of original size [2025-01-09 17:27:34,268 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 38 treesize of output 35 [2025-01-09 17:27:40,276 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 31 treesize of output 15 [2025-01-09 17:27:40,330 INFO L173 IndexEqualityManager]: detected equality via solver [2025-01-09 17:27:40,331 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 3 [2025-01-09 17:27:40,350 INFO L173 IndexEqualityManager]: detected equality via solver [2025-01-09 17:27:40,350 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 3 [2025-01-09 17:27:44,658 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 15