./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/aws-c-common/aws_priority_queue_s_sift_either_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 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_sift_either_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 3b33a1dc558667a4fcb18529533ebc713d63e8618dba1b7e6d3f152565826fd1 --- Real Ultimate output --- This is Ultimate 0.3.0-?-551b009-m [2025-01-09 17:27:25,201 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-01-09 17:27:25,269 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2025-01-09 17:27:25,273 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-01-09 17:27:25,277 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-01-09 17:27:25,298 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-01-09 17:27:25,299 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-01-09 17:27:25,299 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-01-09 17:27:25,299 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-01-09 17:27:25,300 INFO L153 SettingsManager]: * Use memory slicer=true [2025-01-09 17:27:25,300 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-01-09 17:27:25,300 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-01-09 17:27:25,300 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-01-09 17:27:25,300 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-01-09 17:27:25,301 INFO L153 SettingsManager]: * Use SBE=true [2025-01-09 17:27:25,301 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-01-09 17:27:25,301 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-01-09 17:27:25,301 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-01-09 17:27:25,301 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-01-09 17:27:25,301 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-01-09 17:27:25,301 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-01-09 17:27:25,301 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-01-09 17:27:25,301 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-01-09 17:27:25,302 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-01-09 17:27:25,302 INFO L153 SettingsManager]: * Use constant arrays=true [2025-01-09 17:27:25,302 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-01-09 17:27:25,302 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 17:27:25,302 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-09 17:27:25,302 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 17:27:25,302 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 17:27:25,302 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-01-09 17:27:25,302 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 17:27:25,303 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-09 17:27:25,303 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 17:27:25,303 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 17:27:25,303 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-01-09 17:27:25,303 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-01-09 17:27:25,303 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-01-09 17:27:25,303 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-01-09 17:27:25,303 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-01-09 17:27:25,303 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-01-09 17:27:25,303 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-01-09 17:27:25,303 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-01-09 17:27:25,303 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-01-09 17:27:25,304 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-01-09 17:27:25,304 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 -> 3b33a1dc558667a4fcb18529533ebc713d63e8618dba1b7e6d3f152565826fd1 [2025-01-09 17:27:25,524 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-01-09 17:27:25,530 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-01-09 17:27:25,531 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-01-09 17:27:25,532 INFO L270 PluginConnector]: Initializing CDTParser... [2025-01-09 17:27:25,532 INFO L274 PluginConnector]: CDTParser initialized [2025-01-09 17:27:25,533 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_priority_queue_s_sift_either_harness.i [2025-01-09 17:27:26,696 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/d6e91e39c/59ce621752824b12ac7a67b7c52ce4b6/FLAGcfa691be1 [2025-01-09 17:27:27,200 INFO L384 CDTParser]: Found 1 translation units. [2025-01-09 17:27:27,200 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_priority_queue_s_sift_either_harness.i [2025-01-09 17:27:27,234 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/d6e91e39c/59ce621752824b12ac7a67b7c52ce4b6/FLAGcfa691be1 [2025-01-09 17:27:27,270 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/d6e91e39c/59ce621752824b12ac7a67b7c52ce4b6 [2025-01-09 17:27:27,272 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-01-09 17:27:27,273 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-01-09 17:27:27,275 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-01-09 17:27:27,275 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-01-09 17:27:27,278 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-01-09 17:27:27,278 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 05:27:27" (1/1) ... [2025-01-09 17:27:27,279 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4919ae51 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:27:27, skipping insertion in model container [2025-01-09 17:27:27,279 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 05:27:27" (1/1) ... [2025-01-09 17:27:27,340 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-01-09 17:27:27,516 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_sift_either_harness.i[4506,4519] [2025-01-09 17:27:27,520 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_sift_either_harness.i[4566,4579] [2025-01-09 17:27:27,960 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:27:27,961 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:27:27,961 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:27:27,961 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:27:27,962 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:27:27,973 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:27:27,973 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:27:27,974 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:27:27,975 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:27:27,976 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:27:27,976 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:27:27,977 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:27:27,977 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:27:28,287 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:27:28,288 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:27:28,291 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:27:28,295 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:27:28,333 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:27:28,334 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:27:28,334 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:27:28,334 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:27:28,334 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:27:28,335 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:27:28,335 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:27:28,335 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:27:28,335 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:27:28,336 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:27:28,336 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:27:28,336 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:27:28,336 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:27:28,337 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:27:28,338 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:27:28,338 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:27:28,338 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:27:28,340 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:27:28,340 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:27:28,344 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:27:28,344 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:27:28,345 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:27:28,353 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 17:27:28,373 INFO L200 MainTranslator]: Completed pre-run [2025-01-09 17:27:28,381 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_sift_either_harness.i[4506,4519] [2025-01-09 17:27:28,382 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_sift_either_harness.i[4566,4579] [2025-01-09 17:27:28,410 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:27:28,410 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:27:28,410 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:27:28,411 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:27:28,411 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:27:28,455 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:27:28,455 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:27:28,456 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:27:28,456 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:27:28,457 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:27:28,457 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:27:28,457 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:27:28,457 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:27:28,519 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:27:28,520 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:27:28,521 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:27:28,524 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:27:28,528 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [7776-7787] [2025-01-09 17:27:28,549 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:27:28,550 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:27:28,550 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:27:28,551 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:27:28,551 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:27:28,551 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:27:28,551 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:27:28,552 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:27:28,552 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:27:28,552 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:27:28,553 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:27:28,553 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:27:28,553 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:27:28,553 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:27:28,553 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:27:28,553 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:27:28,553 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:27:28,555 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:27:28,555 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:27:28,560 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:27:28,561 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:27:28,561 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:27:28,568 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 17:27:28,740 INFO L204 MainTranslator]: Completed translation [2025-01-09 17:27:28,741 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:27:28 WrapperNode [2025-01-09 17:27:28,741 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-01-09 17:27:28,741 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-01-09 17:27:28,741 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-01-09 17:27:28,741 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-01-09 17:27:28,746 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:27:28" (1/1) ... [2025-01-09 17:27:28,790 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:27:28" (1/1) ... [2025-01-09 17:27:28,836 INFO L138 Inliner]: procedures = 686, calls = 1900, calls flagged for inlining = 59, calls inlined = 15, statements flattened = 947 [2025-01-09 17:27:28,837 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-01-09 17:27:28,837 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-01-09 17:27:28,837 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-01-09 17:27:28,837 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-01-09 17:27:28,848 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:27:28" (1/1) ... [2025-01-09 17:27:28,848 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:27:28" (1/1) ... [2025-01-09 17:27:28,853 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:27:28" (1/1) ... [2025-01-09 17:27:28,918 INFO L175 MemorySlicer]: Split 347 memory accesses to 6 slices as follows [2, 238, 18, 17, 3, 69]. 69 percent of accesses are in the largest equivalence class. The 18 initializations are split as follows [2, 6, 5, 4, 1, 0]. The 259 writes are split as follows [0, 232, 6, 3, 1, 17]. [2025-01-09 17:27:28,919 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:27:28" (1/1) ... [2025-01-09 17:27:28,919 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:27:28" (1/1) ... [2025-01-09 17:27:28,981 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:27:28" (1/1) ... [2025-01-09 17:27:28,982 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:27:28" (1/1) ... [2025-01-09 17:27:28,992 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:27:28" (1/1) ... [2025-01-09 17:27:29,004 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:27:28" (1/1) ... [2025-01-09 17:27:29,014 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:27:28" (1/1) ... [2025-01-09 17:27:29,038 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-01-09 17:27:29,040 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-01-09 17:27:29,040 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-01-09 17:27:29,040 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-01-09 17:27:29,041 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:27:28" (1/1) ... [2025-01-09 17:27:29,045 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 17:27:29,053 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 17:27:29,064 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 17:27:29,066 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 17:27:29,087 INFO L130 BoogieDeclarations]: Found specification of procedure s_sift_either [2025-01-09 17:27:29,088 INFO L138 BoogieDeclarations]: Found implementation of procedure s_sift_either [2025-01-09 17:27:29,089 INFO L130 BoogieDeclarations]: Found specification of procedure s_swap [2025-01-09 17:27:29,089 INFO L138 BoogieDeclarations]: Found implementation of procedure s_swap [2025-01-09 17:27:29,089 INFO L130 BoogieDeclarations]: Found specification of procedure aws_is_mem_zeroed [2025-01-09 17:27:29,090 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_is_mem_zeroed [2025-01-09 17:27:29,090 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-01-09 17:27:29,090 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_bounded [2025-01-09 17:27:29,090 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_bounded [2025-01-09 17:27:29,090 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_valid [2025-01-09 17:27:29,090 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_valid [2025-01-09 17:27:29,090 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2025-01-09 17:27:29,090 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2025-01-09 17:27:29,090 INFO L130 BoogieDeclarations]: Found specification of procedure s_sift_up [2025-01-09 17:27:29,091 INFO L138 BoogieDeclarations]: Found implementation of procedure s_sift_up [2025-01-09 17:27:29,091 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2025-01-09 17:27:29,091 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2025-01-09 17:27:29,091 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2025-01-09 17:27:29,091 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2025-01-09 17:27:29,091 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2025-01-09 17:27:29,092 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2025-01-09 17:27:29,092 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-01-09 17:27:29,092 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-01-09 17:27:29,092 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2025-01-09 17:27:29,092 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2025-01-09 17:27:29,092 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2025-01-09 17:27:29,092 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2025-01-09 17:27:29,092 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2025-01-09 17:27:29,092 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2025-01-09 17:27:29,092 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2025-01-09 17:27:29,092 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2025-01-09 17:27:29,092 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-01-09 17:27:29,093 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-01-09 17:27:29,093 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2025-01-09 17:27:29,093 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2025-01-09 17:27:29,093 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2025-01-09 17:27:29,093 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2025-01-09 17:27:29,093 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2025-01-09 17:27:29,093 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2025-01-09 17:27:29,093 INFO L130 BoogieDeclarations]: Found specification of procedure my_abort [2025-01-09 17:27:29,093 INFO L138 BoogieDeclarations]: Found implementation of procedure my_abort [2025-01-09 17:27:29,093 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_impl [2025-01-09 17:27:29,093 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_impl [2025-01-09 17:27:29,093 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-01-09 17:27:29,093 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-01-09 17:27:29,094 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2025-01-09 17:27:29,094 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2025-01-09 17:27:29,094 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_size_t [2025-01-09 17:27:29,094 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_size_t [2025-01-09 17:27:29,094 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2025-01-09 17:27:29,094 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2025-01-09 17:27:29,095 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2025-01-09 17:27:29,095 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2025-01-09 17:27:29,095 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2025-01-09 17:27:29,095 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2025-01-09 17:27:29,095 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2025-01-09 17:27:29,095 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2025-01-09 17:27:29,095 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_malloc [2025-01-09 17:27:29,095 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_malloc [2025-01-09 17:27:29,096 INFO L130 BoogieDeclarations]: Found specification of procedure aws_priority_queue_is_valid [2025-01-09 17:27:29,096 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_priority_queue_is_valid [2025-01-09 17:27:29,096 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_length [2025-01-09 17:27:29,096 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_length [2025-01-09 17:27:29,096 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2025-01-09 17:27:29,096 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2025-01-09 17:27:29,097 INFO L130 BoogieDeclarations]: Found specification of procedure my_memcpy [2025-01-09 17:27:29,097 INFO L138 BoogieDeclarations]: Found implementation of procedure my_memcpy [2025-01-09 17:27:29,097 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-01-09 17:27:29,097 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2025-01-09 17:27:29,097 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2025-01-09 17:27:29,097 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2025-01-09 17:27:29,097 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2025-01-09 17:27:29,097 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2025-01-09 17:27:29,097 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2025-01-09 17:27:29,097 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2025-01-09 17:27:29,097 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2025-01-09 17:27:29,097 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2025-01-09 17:27:29,097 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2025-01-09 17:27:29,097 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2025-01-09 17:27:29,097 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2025-01-09 17:27:29,098 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_get_at_ptr [2025-01-09 17:27:29,098 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_get_at_ptr [2025-01-09 17:27:29,098 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2025-01-09 17:27:29,098 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2025-01-09 17:27:29,098 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2025-01-09 17:27:29,098 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2025-01-09 17:27:29,098 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-01-09 17:27:29,098 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-01-09 17:27:29,098 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2025-01-09 17:27:29,098 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2025-01-09 17:27:29,098 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2025-01-09 17:27:29,098 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2025-01-09 17:27:29,098 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_array_list_has_allocated_data_member [2025-01-09 17:27:29,098 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_array_list_has_allocated_data_member [2025-01-09 17:27:29,098 INFO L130 BoogieDeclarations]: Found specification of procedure aws_priority_queue_backpointer_index_valid [2025-01-09 17:27:29,098 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_priority_queue_backpointer_index_valid [2025-01-09 17:27:29,098 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2025-01-09 17:27:29,098 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2025-01-09 17:27:29,098 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-01-09 17:27:29,098 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-01-09 17:27:29,098 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-01-09 17:27:29,098 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2025-01-09 17:27:29,098 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2025-01-09 17:27:29,098 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2025-01-09 17:27:29,304 INFO L234 CfgBuilder]: Building ICFG [2025-01-09 17:27:29,306 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-01-09 17:27:35,078 INFO L? ?]: Removed 217 outVars from TransFormulas that were not future-live. [2025-01-09 17:27:35,079 INFO L283 CfgBuilder]: Performing block encoding [2025-01-09 17:27:35,088 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-01-09 17:27:35,088 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2025-01-09 17:27:35,088 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 05:27:35 BoogieIcfgContainer [2025-01-09 17:27:35,088 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-01-09 17:27:35,090 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-01-09 17:27:35,090 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-01-09 17:27:35,093 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-01-09 17:27:35,093 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.01 05:27:27" (1/3) ... [2025-01-09 17:27:35,093 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60ff4317 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 05:27:35, skipping insertion in model container [2025-01-09 17:27:35,093 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:27:28" (2/3) ... [2025-01-09 17:27:35,093 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60ff4317 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 05:27:35, skipping insertion in model container [2025-01-09 17:27:35,094 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 05:27:35" (3/3) ... [2025-01-09 17:27:35,094 INFO L128 eAbstractionObserver]: Analyzing ICFG aws_priority_queue_s_sift_either_harness.i [2025-01-09 17:27:35,103 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-01-09 17:27:35,104 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG aws_priority_queue_s_sift_either_harness.i that has 26 procedures, 364 locations, 1 initial locations, 6 loop locations, and 2 error locations. [2025-01-09 17:27:35,136 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-01-09 17:27:35,143 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;@4f370e3d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-01-09 17:27:35,143 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2025-01-09 17:27:35,146 INFO L276 IsEmpty]: Start isEmpty. Operand has 364 states, 216 states have (on average 1.2314814814814814) internal successors, (266), 219 states have internal predecessors, (266), 120 states have call successors, (120), 25 states have call predecessors, (120), 25 states have return successors, (120), 120 states have call predecessors, (120), 120 states have call successors, (120) [2025-01-09 17:27:35,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2025-01-09 17:27:35,154 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 17:27:35,154 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 17:27:35,155 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 17:27:35,157 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 17:27:35,158 INFO L85 PathProgramCache]: Analyzing trace with hash 947816724, now seen corresponding path program 1 times [2025-01-09 17:27:35,162 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 17:27:35,162 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [431409531] [2025-01-09 17:27:35,162 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 17:27:35,163 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 17:27:39,610 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 138 statements into 1 equivalence classes. [2025-01-09 17:27:39,956 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 138 of 138 statements. [2025-01-09 17:27:39,956 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 17:27:39,959 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 17:27:40,407 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 162 trivial. 0 not checked. [2025-01-09 17:27:40,408 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 17:27:40,408 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [431409531] [2025-01-09 17:27:40,408 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [431409531] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 17:27:40,408 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [752782288] [2025-01-09 17:27:40,408 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 17:27:40,410 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 17:27:40,410 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 17:27:40,418 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 17:27:40,421 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 17:27:44,640 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 138 statements into 1 equivalence classes. [2025-01-09 17:27:45,103 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 138 of 138 statements. [2025-01-09 17:27:45,103 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 17:27:45,103 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 17:27:45,121 INFO L256 TraceCheckSpWp]: Trace formula consists of 4408 conjuncts, 1 conjuncts are in the unsatisfiable core [2025-01-09 17:27:45,130 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 17:27:45,144 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2025-01-09 17:27:45,144 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 17:27:45,145 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [752782288] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 17:27:45,145 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-09 17:27:45,145 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2025-01-09 17:27:45,146 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1857533042] [2025-01-09 17:27:45,146 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 17:27:45,149 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-01-09 17:27:45,149 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 17:27:45,159 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-01-09 17:27:45,159 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-01-09 17:27:45,161 INFO L87 Difference]: Start difference. First operand has 364 states, 216 states have (on average 1.2314814814814814) internal successors, (266), 219 states have internal predecessors, (266), 120 states have call successors, (120), 25 states have call predecessors, (120), 25 states have return successors, (120), 120 states have call predecessors, (120), 120 states have call successors, (120) Second operand has 2 states, 2 states have (on average 24.0) internal successors, (48), 2 states have internal predecessors, (48), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2025-01-09 17:27:45,202 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 17:27:45,203 INFO L93 Difference]: Finished difference Result 703 states and 1054 transitions. [2025-01-09 17:27:45,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-09 17:27:45,204 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 24.0) internal successors, (48), 2 states have internal predecessors, (48), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 138 [2025-01-09 17:27:45,204 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 17:27:45,213 INFO L225 Difference]: With dead ends: 703 [2025-01-09 17:27:45,213 INFO L226 Difference]: Without dead ends: 357 [2025-01-09 17:27:45,221 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 139 GetRequests, 139 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 17:27:45,222 INFO L435 NwaCegarLoop]: 499 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, 499 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 17:27:45,222 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 499 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 17:27:45,232 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 357 states. [2025-01-09 17:27:45,259 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 357 to 357. [2025-01-09 17:27:45,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 357 states, 211 states have (on average 1.2132701421800949) internal successors, (256), 213 states have internal predecessors, (256), 120 states have call successors, (120), 25 states have call predecessors, (120), 24 states have return successors, (118), 118 states have call predecessors, (118), 118 states have call successors, (118) [2025-01-09 17:27:45,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 357 states to 357 states and 494 transitions. [2025-01-09 17:27:45,270 INFO L78 Accepts]: Start accepts. Automaton has 357 states and 494 transitions. Word has length 138 [2025-01-09 17:27:45,275 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 17:27:45,275 INFO L471 AbstractCegarLoop]: Abstraction has 357 states and 494 transitions. [2025-01-09 17:27:45,275 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 24.0) internal successors, (48), 2 states have internal predecessors, (48), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2025-01-09 17:27:45,275 INFO L276 IsEmpty]: Start isEmpty. Operand 357 states and 494 transitions. [2025-01-09 17:27:45,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2025-01-09 17:27:45,282 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 17:27:45,282 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 17:27:45,303 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 [2025-01-09 17:27:45,483 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 17:27:45,484 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 17:27:45,484 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 17:27:45,484 INFO L85 PathProgramCache]: Analyzing trace with hash 884301850, now seen corresponding path program 1 times [2025-01-09 17:27:45,484 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 17:27:45,484 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1028582263] [2025-01-09 17:27:45,484 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 17:27:45,485 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 17:27:48,962 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 138 statements into 1 equivalence classes. [2025-01-09 17:27:49,135 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 138 of 138 statements. [2025-01-09 17:27:49,135 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 17:27:49,135 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 17:27:49,947 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 168 trivial. 0 not checked. [2025-01-09 17:27:49,949 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 17:27:49,949 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1028582263] [2025-01-09 17:27:49,949 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1028582263] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 17:27:49,949 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1162395450] [2025-01-09 17:27:49,949 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 17:27:49,949 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 17:27:49,949 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 17:27:49,954 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 17:27:49,956 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 17:27:54,241 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 138 statements into 1 equivalence classes. [2025-01-09 17:27:54,637 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 138 of 138 statements. [2025-01-09 17:27:54,637 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 17:27:54,637 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 17:27:54,654 INFO L256 TraceCheckSpWp]: Trace formula consists of 4408 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-01-09 17:27:54,663 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 17:27:54,789 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 166 trivial. 0 not checked. [2025-01-09 17:27:54,790 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 17:27:54,790 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1162395450] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 17:27:54,790 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-09 17:27:54,790 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2025-01-09 17:27:54,791 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1434876714] [2025-01-09 17:27:54,792 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 17:27:54,793 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-09 17:27:54,794 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 17:27:54,794 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-09 17:27:54,794 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-01-09 17:27:54,794 INFO L87 Difference]: Start difference. First operand 357 states and 494 transitions. Second operand has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2025-01-09 17:27:54,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 17:27:54,884 INFO L93 Difference]: Finished difference Result 440 states and 601 transitions. [2025-01-09 17:27:54,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-09 17:27:54,885 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 138 [2025-01-09 17:27:54,885 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 17:27:54,888 INFO L225 Difference]: With dead ends: 440 [2025-01-09 17:27:54,890 INFO L226 Difference]: Without dead ends: 358 [2025-01-09 17:27:54,891 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 138 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-01-09 17:27:54,891 INFO L435 NwaCegarLoop]: 493 mSDtfsCounter, 0 mSDsluCounter, 488 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 981 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-01-09 17:27:54,891 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 981 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-01-09 17:27:54,892 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 358 states. [2025-01-09 17:27:54,906 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 358 to 358. [2025-01-09 17:27:54,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 358 states, 212 states have (on average 1.2122641509433962) internal successors, (257), 214 states have internal predecessors, (257), 120 states have call successors, (120), 25 states have call predecessors, (120), 24 states have return successors, (118), 118 states have call predecessors, (118), 118 states have call successors, (118) [2025-01-09 17:27:54,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 358 states to 358 states and 495 transitions. [2025-01-09 17:27:54,909 INFO L78 Accepts]: Start accepts. Automaton has 358 states and 495 transitions. Word has length 138 [2025-01-09 17:27:54,910 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 17:27:54,910 INFO L471 AbstractCegarLoop]: Abstraction has 358 states and 495 transitions. [2025-01-09 17:27:54,910 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2025-01-09 17:27:54,910 INFO L276 IsEmpty]: Start isEmpty. Operand 358 states and 495 transitions. [2025-01-09 17:27:54,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2025-01-09 17:27:54,912 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 17:27:54,912 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 7, 7, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 17:27:54,926 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 17:27:55,112 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 17:27:55,113 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 17:27:55,113 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 17:27:55,114 INFO L85 PathProgramCache]: Analyzing trace with hash -1558713410, now seen corresponding path program 1 times [2025-01-09 17:27:55,114 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 17:27:55,114 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1034083406] [2025-01-09 17:27:55,114 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 17:27:55,114 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 17:27:58,760 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 157 statements into 1 equivalence classes. [2025-01-09 17:27:58,830 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 157 of 157 statements. [2025-01-09 17:27:58,830 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 17:27:58,830 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 17:27:59,541 INFO L134 CoverageAnalysis]: Checked inductivity of 246 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 237 trivial. 0 not checked. [2025-01-09 17:27:59,541 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 17:27:59,541 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1034083406] [2025-01-09 17:27:59,541 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1034083406] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 17:27:59,541 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [184599398] [2025-01-09 17:27:59,541 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 17:27:59,541 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 17:27:59,541 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 17:27:59,543 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 17:27:59,545 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 17:28:03,642 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 157 statements into 1 equivalence classes. [2025-01-09 17:28:04,083 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 157 of 157 statements. [2025-01-09 17:28:04,083 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 17:28:04,083 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 17:28:04,100 INFO L256 TraceCheckSpWp]: Trace formula consists of 4532 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-01-09 17:28:04,106 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 17:28:05,086 INFO L134 CoverageAnalysis]: Checked inductivity of 246 backedges. 102 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2025-01-09 17:28:05,087 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 17:28:05,087 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [184599398] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 17:28:05,087 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-09 17:28:05,087 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [5] total 9 [2025-01-09 17:28:05,087 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [666456726] [2025-01-09 17:28:05,087 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 17:28:05,088 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-01-09 17:28:05,088 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 17:28:05,088 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-01-09 17:28:05,088 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2025-01-09 17:28:05,089 INFO L87 Difference]: Start difference. First operand 358 states and 495 transitions. Second operand has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 6 states have internal predecessors, (55), 3 states have call successors, (27), 2 states have call predecessors, (27), 3 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) [2025-01-09 17:28:07,404 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 17:28:07,404 INFO L93 Difference]: Finished difference Result 670 states and 936 transitions. [2025-01-09 17:28:07,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-01-09 17:28:07,407 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 6 states have internal predecessors, (55), 3 states have call successors, (27), 2 states have call predecessors, (27), 3 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) Word has length 157 [2025-01-09 17:28:07,407 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 17:28:07,416 INFO L225 Difference]: With dead ends: 670 [2025-01-09 17:28:07,419 INFO L226 Difference]: Without dead ends: 360 [2025-01-09 17:28:07,422 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 164 GetRequests, 154 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2025-01-09 17:28:07,423 INFO L435 NwaCegarLoop]: 443 mSDtfsCounter, 494 mSDsluCounter, 1286 mSDsCounter, 0 mSdLazyCounter, 189 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 502 SdHoareTripleChecker+Valid, 1729 SdHoareTripleChecker+Invalid, 222 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 189 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2025-01-09 17:28:07,423 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [502 Valid, 1729 Invalid, 222 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 189 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2025-01-09 17:28:07,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 360 states. [2025-01-09 17:28:07,476 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 360 to 360. [2025-01-09 17:28:07,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 360 states, 213 states have (on average 1.2112676056338028) internal successors, (258), 216 states have internal predecessors, (258), 120 states have call successors, (120), 25 states have call predecessors, (120), 25 states have return successors, (126), 118 states have call predecessors, (126), 118 states have call successors, (126) [2025-01-09 17:28:07,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 360 states to 360 states and 504 transitions. [2025-01-09 17:28:07,490 INFO L78 Accepts]: Start accepts. Automaton has 360 states and 504 transitions. Word has length 157 [2025-01-09 17:28:07,491 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 17:28:07,494 INFO L471 AbstractCegarLoop]: Abstraction has 360 states and 504 transitions. [2025-01-09 17:28:07,495 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 6 states have internal predecessors, (55), 3 states have call successors, (27), 2 states have call predecessors, (27), 3 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) [2025-01-09 17:28:07,495 INFO L276 IsEmpty]: Start isEmpty. Operand 360 states and 504 transitions. [2025-01-09 17:28:07,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2025-01-09 17:28:07,499 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 17:28:07,499 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 7, 7, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 17:28:07,514 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2025-01-09 17:28:07,699 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 17:28:07,702 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 17:28:07,703 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 17:28:07,703 INFO L85 PathProgramCache]: Analyzing trace with hash -1386751292, now seen corresponding path program 1 times [2025-01-09 17:28:07,703 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 17:28:07,703 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1393214718] [2025-01-09 17:28:07,703 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 17:28:07,703 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 17:28:11,436 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 165 statements into 1 equivalence classes. [2025-01-09 17:28:11,499 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 165 of 165 statements. [2025-01-09 17:28:11,499 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 17:28:11,499 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 17:28:12,645 INFO L134 CoverageAnalysis]: Checked inductivity of 246 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 237 trivial. 0 not checked. [2025-01-09 17:28:12,646 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 17:28:12,646 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1393214718] [2025-01-09 17:28:12,646 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1393214718] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 17:28:12,646 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [499333765] [2025-01-09 17:28:12,646 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 17:28:12,646 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 17:28:12,646 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 17:28:12,652 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 17:28:12,653 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 17:28:16,807 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 165 statements into 1 equivalence classes. [2025-01-09 17:28:17,205 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 165 of 165 statements. [2025-01-09 17:28:17,205 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 17:28:17,205 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 17:28:17,223 INFO L256 TraceCheckSpWp]: Trace formula consists of 4582 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-01-09 17:28:17,228 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 17:28:18,702 INFO L134 CoverageAnalysis]: Checked inductivity of 246 backedges. 102 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2025-01-09 17:28:18,710 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 17:28:18,710 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [499333765] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 17:28:18,710 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-09 17:28:18,710 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [7] total 12 [2025-01-09 17:28:18,710 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [305862312] [2025-01-09 17:28:18,710 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 17:28:18,710 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-01-09 17:28:18,710 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 17:28:18,711 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-01-09 17:28:18,711 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2025-01-09 17:28:18,711 INFO L87 Difference]: Start difference. First operand 360 states and 504 transitions. Second operand has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 7 states have internal predecessors, (61), 4 states have call successors, (28), 2 states have call predecessors, (28), 4 states have return successors, (25), 4 states have call predecessors, (25), 4 states have call successors, (25) [2025-01-09 17:28:21,325 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 17:28:21,326 INFO L93 Difference]: Finished difference Result 693 states and 991 transitions. [2025-01-09 17:28:21,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-01-09 17:28:21,326 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 7 states have internal predecessors, (61), 4 states have call successors, (28), 2 states have call predecessors, (28), 4 states have return successors, (25), 4 states have call predecessors, (25), 4 states have call successors, (25) Word has length 165 [2025-01-09 17:28:21,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 17:28:21,332 INFO L225 Difference]: With dead ends: 693 [2025-01-09 17:28:21,332 INFO L226 Difference]: Without dead ends: 381 [2025-01-09 17:28:21,334 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 172 GetRequests, 161 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=25, Invalid=131, Unknown=0, NotChecked=0, Total=156 [2025-01-09 17:28:21,334 INFO L435 NwaCegarLoop]: 463 mSDtfsCounter, 39 mSDsluCounter, 2230 mSDsCounter, 0 mSdLazyCounter, 265 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 2693 SdHoareTripleChecker+Invalid, 266 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 265 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2025-01-09 17:28:21,334 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [53 Valid, 2693 Invalid, 266 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 265 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2025-01-09 17:28:21,335 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 381 states. [2025-01-09 17:28:21,356 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 381 to 379. [2025-01-09 17:28:21,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 379 states, 229 states have (on average 1.222707423580786) internal successors, (280), 232 states have internal predecessors, (280), 122 states have call successors, (122), 25 states have call predecessors, (122), 26 states have return successors, (139), 121 states have call predecessors, (139), 120 states have call successors, (139) [2025-01-09 17:28:21,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 379 states to 379 states and 541 transitions. [2025-01-09 17:28:21,360 INFO L78 Accepts]: Start accepts. Automaton has 379 states and 541 transitions. Word has length 165 [2025-01-09 17:28:21,361 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 17:28:21,361 INFO L471 AbstractCegarLoop]: Abstraction has 379 states and 541 transitions. [2025-01-09 17:28:21,361 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 7 states have internal predecessors, (61), 4 states have call successors, (28), 2 states have call predecessors, (28), 4 states have return successors, (25), 4 states have call predecessors, (25), 4 states have call successors, (25) [2025-01-09 17:28:21,361 INFO L276 IsEmpty]: Start isEmpty. Operand 379 states and 541 transitions. [2025-01-09 17:28:21,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2025-01-09 17:28:21,364 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 17:28:21,364 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 7, 7, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 17:28:21,382 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2025-01-09 17:28:21,568 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 17:28:21,568 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 17:28:21,568 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 17:28:21,568 INFO L85 PathProgramCache]: Analyzing trace with hash 1493821509, now seen corresponding path program 1 times [2025-01-09 17:28:21,568 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 17:28:21,568 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1729294310] [2025-01-09 17:28:21,568 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 17:28:21,569 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 17:28:25,081 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 180 statements into 1 equivalence classes. [2025-01-09 17:28:25,180 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 180 of 180 statements. [2025-01-09 17:28:25,180 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 17:28:25,181 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 17:28:26,422 INFO L134 CoverageAnalysis]: Checked inductivity of 246 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 237 trivial. 0 not checked. [2025-01-09 17:28:26,422 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 17:28:26,422 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1729294310] [2025-01-09 17:28:26,422 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1729294310] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 17:28:26,422 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1615933207] [2025-01-09 17:28:26,422 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 17:28:26,422 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 17:28:26,422 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 17:28:26,426 INFO L229 MonitoredProcess]: Starting monitored process 6 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 17:28:26,428 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2025-01-09 17:28:30,678 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 180 statements into 1 equivalence classes. [2025-01-09 17:28:31,084 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 180 of 180 statements. [2025-01-09 17:28:31,084 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 17:28:31,084 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 17:28:31,109 INFO L256 TraceCheckSpWp]: Trace formula consists of 4709 conjuncts, 7 conjuncts are in the unsatisfiable core [2025-01-09 17:28:31,115 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 17:28:32,585 INFO L134 CoverageAnalysis]: Checked inductivity of 246 backedges. 102 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2025-01-09 17:28:32,585 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 17:28:32,585 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1615933207] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 17:28:32,585 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-09 17:28:32,586 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [7] total 12 [2025-01-09 17:28:32,586 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [759809195] [2025-01-09 17:28:32,586 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 17:28:32,586 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-01-09 17:28:32,586 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 17:28:32,587 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-01-09 17:28:32,587 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2025-01-09 17:28:32,587 INFO L87 Difference]: Start difference. First operand 379 states and 541 transitions. Second operand has 7 states, 7 states have (on average 10.285714285714286) internal successors, (72), 7 states have internal predecessors, (72), 4 states have call successors, (30), 2 states have call predecessors, (30), 3 states have return successors, (27), 4 states have call predecessors, (27), 4 states have call successors, (27) [2025-01-09 17:28:36,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 17:28:36,021 INFO L93 Difference]: Finished difference Result 716 states and 1039 transitions. [2025-01-09 17:28:36,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-01-09 17:28:36,023 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.285714285714286) internal successors, (72), 7 states have internal predecessors, (72), 4 states have call successors, (30), 2 states have call predecessors, (30), 3 states have return successors, (27), 4 states have call predecessors, (27), 4 states have call successors, (27) Word has length 180 [2025-01-09 17:28:36,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 17:28:36,026 INFO L225 Difference]: With dead ends: 716 [2025-01-09 17:28:36,026 INFO L226 Difference]: Without dead ends: 385 [2025-01-09 17:28:36,032 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 190 GetRequests, 176 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=39, Invalid=201, Unknown=0, NotChecked=0, Total=240 [2025-01-09 17:28:36,032 INFO L435 NwaCegarLoop]: 435 mSDtfsCounter, 510 mSDsluCounter, 1671 mSDsCounter, 0 mSdLazyCounter, 288 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 518 SdHoareTripleChecker+Valid, 2106 SdHoareTripleChecker+Invalid, 325 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 288 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2025-01-09 17:28:36,032 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [518 Valid, 2106 Invalid, 325 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 288 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2025-01-09 17:28:36,037 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 385 states. [2025-01-09 17:28:36,050 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 385 to 379. [2025-01-09 17:28:36,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 379 states, 229 states have (on average 1.222707423580786) internal successors, (280), 232 states have internal predecessors, (280), 122 states have call successors, (122), 25 states have call predecessors, (122), 26 states have return successors, (139), 121 states have call predecessors, (139), 120 states have call successors, (139) [2025-01-09 17:28:36,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 379 states to 379 states and 541 transitions. [2025-01-09 17:28:36,053 INFO L78 Accepts]: Start accepts. Automaton has 379 states and 541 transitions. Word has length 180 [2025-01-09 17:28:36,054 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 17:28:36,054 INFO L471 AbstractCegarLoop]: Abstraction has 379 states and 541 transitions. [2025-01-09 17:28:36,054 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.285714285714286) internal successors, (72), 7 states have internal predecessors, (72), 4 states have call successors, (30), 2 states have call predecessors, (30), 3 states have return successors, (27), 4 states have call predecessors, (27), 4 states have call successors, (27) [2025-01-09 17:28:36,054 INFO L276 IsEmpty]: Start isEmpty. Operand 379 states and 541 transitions. [2025-01-09 17:28:36,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2025-01-09 17:28:36,059 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 17:28:36,059 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 7, 7, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:28:36,099 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2025-01-09 17:28:36,260 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 17:28:36,260 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 17:28:36,261 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 17:28:36,261 INFO L85 PathProgramCache]: Analyzing trace with hash 1606310542, now seen corresponding path program 1 times [2025-01-09 17:28:36,261 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 17:28:36,261 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [35757203] [2025-01-09 17:28:36,261 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 17:28:36,261 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 17:28:39,855 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 196 statements into 1 equivalence classes. [2025-01-09 17:28:39,930 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 196 of 196 statements. [2025-01-09 17:28:39,931 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 17:28:39,931 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 17:28:41,451 INFO L134 CoverageAnalysis]: Checked inductivity of 250 backedges. 3 proven. 9 refuted. 0 times theorem prover too weak. 238 trivial. 0 not checked. [2025-01-09 17:28:41,451 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 17:28:41,452 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [35757203] [2025-01-09 17:28:41,452 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [35757203] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 17:28:41,452 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2031381791] [2025-01-09 17:28:41,452 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 17:28:41,452 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 17:28:41,452 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 17:28:41,454 INFO L229 MonitoredProcess]: Starting monitored process 7 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 17:28:41,455 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2025-01-09 17:28:45,838 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 196 statements into 1 equivalence classes. [2025-01-09 17:28:46,250 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 196 of 196 statements. [2025-01-09 17:28:46,251 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 17:28:46,251 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 17:28:46,269 INFO L256 TraceCheckSpWp]: Trace formula consists of 4781 conjuncts, 8 conjuncts are in the unsatisfiable core [2025-01-09 17:28:46,275 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 17:28:48,101 INFO L134 CoverageAnalysis]: Checked inductivity of 250 backedges. 105 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2025-01-09 17:28:48,101 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 17:28:48,101 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2031381791] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 17:28:48,101 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-09 17:28:48,101 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [9] total 15 [2025-01-09 17:28:48,101 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [524406556] [2025-01-09 17:28:48,102 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 17:28:48,102 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-01-09 17:28:48,102 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 17:28:48,102 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-01-09 17:28:48,103 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=176, Unknown=0, NotChecked=0, Total=210 [2025-01-09 17:28:48,103 INFO L87 Difference]: Start difference. First operand 379 states and 541 transitions. Second operand has 8 states, 8 states have (on average 10.75) internal successors, (86), 8 states have internal predecessors, (86), 5 states have call successors, (31), 2 states have call predecessors, (31), 4 states have return successors, (28), 5 states have call predecessors, (28), 5 states have call successors, (28) [2025-01-09 17:28:51,732 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 17:28:51,732 INFO L93 Difference]: Finished difference Result 743 states and 1078 transitions. [2025-01-09 17:28:51,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-01-09 17:28:51,733 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.75) internal successors, (86), 8 states have internal predecessors, (86), 5 states have call successors, (31), 2 states have call predecessors, (31), 4 states have return successors, (28), 5 states have call predecessors, (28), 5 states have call successors, (28) Word has length 196 [2025-01-09 17:28:51,734 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 17:28:51,737 INFO L225 Difference]: With dead ends: 743 [2025-01-09 17:28:51,737 INFO L226 Difference]: Without dead ends: 412 [2025-01-09 17:28:51,738 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 205 GetRequests, 191 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=41, Invalid=199, Unknown=0, NotChecked=0, Total=240 [2025-01-09 17:28:51,739 INFO L435 NwaCegarLoop]: 457 mSDtfsCounter, 61 mSDsluCounter, 2630 mSDsCounter, 0 mSdLazyCounter, 360 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 73 SdHoareTripleChecker+Valid, 3087 SdHoareTripleChecker+Invalid, 363 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 360 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2025-01-09 17:28:51,739 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [73 Valid, 3087 Invalid, 363 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 360 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2025-01-09 17:28:51,739 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 412 states. [2025-01-09 17:28:51,748 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 412 to 379. [2025-01-09 17:28:51,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 379 states, 229 states have (on average 1.222707423580786) internal successors, (280), 232 states have internal predecessors, (280), 122 states have call successors, (122), 25 states have call predecessors, (122), 26 states have return successors, (139), 121 states have call predecessors, (139), 120 states have call successors, (139) [2025-01-09 17:28:51,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 379 states to 379 states and 541 transitions. [2025-01-09 17:28:51,751 INFO L78 Accepts]: Start accepts. Automaton has 379 states and 541 transitions. Word has length 196 [2025-01-09 17:28:51,752 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 17:28:51,752 INFO L471 AbstractCegarLoop]: Abstraction has 379 states and 541 transitions. [2025-01-09 17:28:51,752 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.75) internal successors, (86), 8 states have internal predecessors, (86), 5 states have call successors, (31), 2 states have call predecessors, (31), 4 states have return successors, (28), 5 states have call predecessors, (28), 5 states have call successors, (28) [2025-01-09 17:28:51,752 INFO L276 IsEmpty]: Start isEmpty. Operand 379 states and 541 transitions. [2025-01-09 17:28:51,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2025-01-09 17:28:51,754 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 17:28:51,754 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 7, 7, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 17:28:51,774 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2025-01-09 17:28:51,954 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2025-01-09 17:28:51,955 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 17:28:51,955 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 17:28:51,955 INFO L85 PathProgramCache]: Analyzing trace with hash 1416966219, now seen corresponding path program 1 times [2025-01-09 17:28:51,955 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 17:28:51,955 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [62745871] [2025-01-09 17:28:51,955 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 17:28:51,956 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 17:28:55,436 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 211 statements into 1 equivalence classes. [2025-01-09 17:28:55,511 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 211 of 211 statements. [2025-01-09 17:28:55,511 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 17:28:55,511 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 17:28:57,644 INFO L134 CoverageAnalysis]: Checked inductivity of 265 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 250 trivial. 0 not checked. [2025-01-09 17:28:57,645 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 17:28:57,645 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [62745871] [2025-01-09 17:28:57,645 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [62745871] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 17:28:57,645 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [381536211] [2025-01-09 17:28:57,645 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 17:28:57,645 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 17:28:57,646 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 17:28:57,648 INFO L229 MonitoredProcess]: Starting monitored process 8 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 17:28:57,650 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process