./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/aws-c-common/aws_priority_queue_s_sift_down_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 48c9605d Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/aws-c-common/aws_priority_queue_s_sift_down_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 1d3eb02e894c2acef7732d0e57c112cc2c197f8f03d7c13822f169fbed4dc5e5 --- Real Ultimate output --- This is Ultimate 0.3.0-?-48c9605-m [2025-02-08 01:57:03,450 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-08 01:57:03,512 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2025-02-08 01:57:03,519 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-08 01:57:03,521 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-08 01:57:03,543 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-08 01:57:03,544 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-08 01:57:03,544 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-08 01:57:03,545 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-08 01:57:03,545 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-08 01:57:03,546 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-08 01:57:03,546 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-08 01:57:03,546 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-08 01:57:03,546 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-08 01:57:03,547 INFO L153 SettingsManager]: * Use SBE=true [2025-02-08 01:57:03,547 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-08 01:57:03,547 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-08 01:57:03,547 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-08 01:57:03,547 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-08 01:57:03,547 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-08 01:57:03,547 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-08 01:57:03,547 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-08 01:57:03,547 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-08 01:57:03,548 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-08 01:57:03,548 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-08 01:57:03,548 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-08 01:57:03,548 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-08 01:57:03,548 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-08 01:57:03,548 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-08 01:57:03,548 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 01:57:03,549 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-08 01:57:03,549 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-08 01:57:03,549 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-02-08 01:57:03,549 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-02-08 01:57:03,549 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-08 01:57:03,549 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-08 01:57:03,549 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-08 01:57:03,549 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-08 01:57:03,549 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-08 01:57:03,549 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-08 01:57:03,549 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 -> 1d3eb02e894c2acef7732d0e57c112cc2c197f8f03d7c13822f169fbed4dc5e5 [2025-02-08 01:57:03,799 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-08 01:57:03,809 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-08 01:57:03,812 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-08 01:57:03,813 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-08 01:57:03,813 INFO L274 PluginConnector]: CDTParser initialized [2025-02-08 01:57:03,814 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_priority_queue_s_sift_down_harness.i [2025-02-08 01:57:05,037 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/f8c6d623c/3794368527c94702bd75076b276e74c8/FLAGc7d6e7cb8 [2025-02-08 01:57:05,518 INFO L384 CDTParser]: Found 1 translation units. [2025-02-08 01:57:05,518 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_priority_queue_s_sift_down_harness.i [2025-02-08 01:57:05,559 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/f8c6d623c/3794368527c94702bd75076b276e74c8/FLAGc7d6e7cb8 [2025-02-08 01:57:05,581 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/f8c6d623c/3794368527c94702bd75076b276e74c8 [2025-02-08 01:57:05,584 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-08 01:57:05,586 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-08 01:57:05,587 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-08 01:57:05,588 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-08 01:57:05,592 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-08 01:57:05,593 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 01:57:05" (1/1) ... [2025-02-08 01:57:05,593 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@58686f55 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:57:05, skipping insertion in model container [2025-02-08 01:57:05,593 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 01:57:05" (1/1) ... [2025-02-08 01:57:05,657 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-08 01:57:05,891 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_down_harness.i[4504,4517] [2025-02-08 01:57:05,900 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_down_harness.i[4564,4577] [2025-02-08 01:57:06,373 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:57:06,374 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:57:06,374 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:57:06,374 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:57:06,375 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:57:06,386 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:57:06,387 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:57:06,388 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:57:06,388 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:57:06,389 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:57:06,390 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:57:06,390 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:57:06,391 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:57:06,751 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:57:06,752 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:57:06,761 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:57:06,764 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:57:06,819 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:57:06,820 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:57:06,820 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:57:06,821 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:57:06,821 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:57:06,822 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:57:06,822 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:57:06,822 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:57:06,822 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:57:06,823 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:57:06,823 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:57:06,824 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:57:06,824 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:57:06,828 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:57:06,828 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:57:06,829 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:57:06,829 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:57:06,831 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:57:06,831 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:57:06,836 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:57:06,839 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:57:06,839 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:57:06,866 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 01:57:06,886 INFO L200 MainTranslator]: Completed pre-run [2025-02-08 01:57:06,895 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_down_harness.i[4504,4517] [2025-02-08 01:57:06,896 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_down_harness.i[4564,4577] [2025-02-08 01:57:06,934 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:57:06,934 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:57:06,935 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:57:06,935 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:57:06,935 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:57:06,941 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:57:06,943 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:57:06,944 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:57:06,944 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:57:06,945 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:57:06,945 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:57:06,945 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:57:06,945 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:57:07,015 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:57:07,015 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:57:07,016 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:57:07,020 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:57:07,027 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [7776-7787] [2025-02-08 01:57:07,047 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:57:07,048 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:57:07,048 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:57:07,049 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:57:07,049 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:57:07,050 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:57:07,050 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:57:07,051 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:57:07,051 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:57:07,051 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:57:07,051 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:57:07,051 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:57:07,051 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:57:07,052 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:57:07,052 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:57:07,053 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:57:07,053 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:57:07,055 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:57:07,055 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:57:07,059 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:57:07,060 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:57:07,061 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:57:07,068 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 01:57:07,271 INFO L204 MainTranslator]: Completed translation [2025-02-08 01:57:07,272 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:57:07 WrapperNode [2025-02-08 01:57:07,272 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-08 01:57:07,273 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-08 01:57:07,273 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-08 01:57:07,273 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-08 01:57:07,277 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:57:07" (1/1) ... [2025-02-08 01:57:07,326 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:57:07" (1/1) ... [2025-02-08 01:57:07,388 INFO L138 Inliner]: procedures = 686, calls = 1900, calls flagged for inlining = 59, calls inlined = 14, statements flattened = 845 [2025-02-08 01:57:07,389 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-08 01:57:07,390 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-08 01:57:07,390 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-08 01:57:07,390 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-08 01:57:07,397 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:57:07" (1/1) ... [2025-02-08 01:57:07,398 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:57:07" (1/1) ... [2025-02-08 01:57:07,406 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:57:07" (1/1) ... [2025-02-08 01:57:07,479 INFO L175 MemorySlicer]: Split 342 memory accesses to 6 slices as follows [238, 2, 18, 66, 15, 3]. 70 percent of accesses are in the largest equivalence class. The 18 initializations are split as follows [6, 2, 5, 0, 4, 1]. The 259 writes are split as follows [232, 0, 6, 17, 3, 1]. [2025-02-08 01:57:07,480 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:57:07" (1/1) ... [2025-02-08 01:57:07,480 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:57:07" (1/1) ... [2025-02-08 01:57:07,550 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:57:07" (1/1) ... [2025-02-08 01:57:07,556 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:57:07" (1/1) ... [2025-02-08 01:57:07,561 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:57:07" (1/1) ... [2025-02-08 01:57:07,563 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:57:07" (1/1) ... [2025-02-08 01:57:07,572 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-08 01:57:07,573 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-08 01:57:07,573 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-08 01:57:07,573 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-08 01:57:07,574 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:57:07" (1/1) ... [2025-02-08 01:57:07,579 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 01:57:07,588 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 01:57:07,601 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-02-08 01:57:07,609 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-02-08 01:57:07,627 INFO L130 BoogieDeclarations]: Found specification of procedure s_swap [2025-02-08 01:57:07,627 INFO L138 BoogieDeclarations]: Found implementation of procedure s_swap [2025-02-08 01:57:07,627 INFO L130 BoogieDeclarations]: Found specification of procedure aws_is_mem_zeroed [2025-02-08 01:57:07,627 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_is_mem_zeroed [2025-02-08 01:57:07,628 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-02-08 01:57:07,628 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_bounded [2025-02-08 01:57:07,628 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_bounded [2025-02-08 01:57:07,628 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_valid [2025-02-08 01:57:07,629 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_valid [2025-02-08 01:57:07,629 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2025-02-08 01:57:07,629 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2025-02-08 01:57:07,629 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2025-02-08 01:57:07,629 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2025-02-08 01:57:07,629 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2025-02-08 01:57:07,630 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2025-02-08 01:57:07,630 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2025-02-08 01:57:07,630 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2025-02-08 01:57:07,630 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-02-08 01:57:07,630 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-02-08 01:57:07,630 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2025-02-08 01:57:07,630 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2025-02-08 01:57:07,630 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2025-02-08 01:57:07,631 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2025-02-08 01:57:07,631 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2025-02-08 01:57:07,631 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2025-02-08 01:57:07,631 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2025-02-08 01:57:07,631 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2025-02-08 01:57:07,631 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-02-08 01:57:07,631 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-08 01:57:07,631 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2025-02-08 01:57:07,631 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2025-02-08 01:57:07,631 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2025-02-08 01:57:07,631 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2025-02-08 01:57:07,631 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2025-02-08 01:57:07,631 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2025-02-08 01:57:07,631 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_impl [2025-02-08 01:57:07,631 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_impl [2025-02-08 01:57:07,631 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-08 01:57:07,631 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-08 01:57:07,631 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2025-02-08 01:57:07,631 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2025-02-08 01:57:07,631 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_size_t [2025-02-08 01:57:07,631 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_size_t [2025-02-08 01:57:07,631 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2025-02-08 01:57:07,631 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2025-02-08 01:57:07,631 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2025-02-08 01:57:07,631 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2025-02-08 01:57:07,631 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2025-02-08 01:57:07,631 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2025-02-08 01:57:07,631 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2025-02-08 01:57:07,631 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2025-02-08 01:57:07,632 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_malloc [2025-02-08 01:57:07,632 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_malloc [2025-02-08 01:57:07,632 INFO L130 BoogieDeclarations]: Found specification of procedure aws_priority_queue_is_valid [2025-02-08 01:57:07,632 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_priority_queue_is_valid [2025-02-08 01:57:07,632 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_length [2025-02-08 01:57:07,632 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_length [2025-02-08 01:57:07,632 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2025-02-08 01:57:07,632 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2025-02-08 01:57:07,632 INFO L130 BoogieDeclarations]: Found specification of procedure my_memcpy [2025-02-08 01:57:07,632 INFO L138 BoogieDeclarations]: Found implementation of procedure my_memcpy [2025-02-08 01:57:07,632 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-02-08 01:57:07,632 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2025-02-08 01:57:07,632 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2025-02-08 01:57:07,632 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2025-02-08 01:57:07,632 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2025-02-08 01:57:07,632 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2025-02-08 01:57:07,632 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2025-02-08 01:57:07,632 INFO L130 BoogieDeclarations]: Found specification of procedure s_sift_down [2025-02-08 01:57:07,632 INFO L138 BoogieDeclarations]: Found implementation of procedure s_sift_down [2025-02-08 01:57:07,632 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2025-02-08 01:57:07,632 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2025-02-08 01:57:07,632 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2025-02-08 01:57:07,632 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2025-02-08 01:57:07,632 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2025-02-08 01:57:07,632 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2025-02-08 01:57:07,632 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_get_at_ptr [2025-02-08 01:57:07,632 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_get_at_ptr [2025-02-08 01:57:07,632 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2025-02-08 01:57:07,632 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2025-02-08 01:57:07,632 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2025-02-08 01:57:07,632 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2025-02-08 01:57:07,632 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-02-08 01:57:07,632 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-02-08 01:57:07,632 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2025-02-08 01:57:07,632 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2025-02-08 01:57:07,632 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2025-02-08 01:57:07,632 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2025-02-08 01:57:07,632 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_array_list_has_allocated_data_member [2025-02-08 01:57:07,632 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_array_list_has_allocated_data_member [2025-02-08 01:57:07,632 INFO L130 BoogieDeclarations]: Found specification of procedure aws_priority_queue_backpointer_index_valid [2025-02-08 01:57:07,632 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_priority_queue_backpointer_index_valid [2025-02-08 01:57:07,632 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2025-02-08 01:57:07,632 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2025-02-08 01:57:07,633 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-02-08 01:57:07,633 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-02-08 01:57:07,634 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-02-08 01:57:07,634 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2025-02-08 01:57:07,634 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2025-02-08 01:57:07,634 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2025-02-08 01:57:07,880 INFO L257 CfgBuilder]: Building ICFG [2025-02-08 01:57:07,882 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-08 01:57:07,921 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L6935: havoc #t~malloc583.base, #t~malloc583.offset; [2025-02-08 01:57:07,924 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L263: havoc #t~nondet6; [2025-02-08 01:57:07,951 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L2590: havoc #t~ret57#1; [2025-02-08 01:57:07,996 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L267: havoc nondet_uint8_t_#t~nondet10#1;#t~ret681#1 := nondet_uint8_t_#res#1;havoc nondet_uint8_t_#t~nondet10#1;assume { :end_inline_nondet_uint8_t } true;call write~int#2(#t~ret681#1, ~dst#1.base, ~dst#1.offset + (if ~index~0#1 % 18446744073709551616 % 18446744073709551616 <= 9223372036854775807 then ~index~0#1 % 18446744073709551616 % 18446744073709551616 else ~index~0#1 % 18446744073709551616 % 18446744073709551616 - 18446744073709551616), 1);havoc ~index~0#1;havoc #t~ret681#1; [2025-02-08 01:57:08,006 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L6949: havoc #t~ret587;havoc #t~ite589.base, #t~ite589.offset;havoc #t~ret588.base, #t~ret588.offset; [2025-02-08 01:57:08,141 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L8277: havoc aws_priority_queue_backpointers_valid_#t~ret875#1;havoc aws_priority_queue_backpointers_valid_#t~short876#1; [2025-02-08 01:57:08,199 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L2944: call ULTIMATE.dealloc(~#required_size~0.base, ~#required_size~0.offset);havoc ~#required_size~0.base, ~#required_size~0.offset; [2025-02-08 01:57:08,202 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L261: havoc #t~nondet4; [2025-02-08 01:57:08,218 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L8191: havoc ~node~1.base, ~node~1.offset; [2025-02-08 01:57:08,238 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L262: havoc nondet_int_#t~nondet5#1; [2025-02-08 01:57:08,239 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L7268: havoc nondet_compare_#t~ret668#1; [2025-02-08 01:57:08,254 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L3203: havoc #t~ret243; [2025-02-08 01:57:08,262 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L7397: havoc #t~ret682.base, #t~ret682.offset; [2025-02-08 01:57:13,484 INFO L? ?]: Removed 195 outVars from TransFormulas that were not future-live. [2025-02-08 01:57:13,484 INFO L308 CfgBuilder]: Performing block encoding [2025-02-08 01:57:13,502 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-08 01:57:13,503 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-08 01:57:13,503 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 01:57:13 BoogieIcfgContainer [2025-02-08 01:57:13,503 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-08 01:57:13,506 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-08 01:57:13,506 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-08 01:57:13,510 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-08 01:57:13,510 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.02 01:57:05" (1/3) ... [2025-02-08 01:57:13,510 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@436e2ea5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.02 01:57:13, skipping insertion in model container [2025-02-08 01:57:13,511 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:57:07" (2/3) ... [2025-02-08 01:57:13,511 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@436e2ea5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.02 01:57:13, skipping insertion in model container [2025-02-08 01:57:13,511 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 01:57:13" (3/3) ... [2025-02-08 01:57:13,512 INFO L128 eAbstractionObserver]: Analyzing ICFG aws_priority_queue_s_sift_down_harness.i [2025-02-08 01:57:13,523 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-08 01:57:13,524 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG aws_priority_queue_s_sift_down_harness.i that has 24 procedures, 315 locations, 1 initial locations, 5 loop locations, and 1 error locations. [2025-02-08 01:57:13,572 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-08 01:57:13,582 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;@7837a332, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-08 01:57:13,582 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-02-08 01:57:13,587 INFO L276 IsEmpty]: Start isEmpty. Operand has 315 states, 182 states have (on average 1.2362637362637363) internal successors, (225), 187 states have internal predecessors, (225), 104 states have call successors, (104), 23 states have call predecessors, (104), 23 states have return successors, (104), 104 states have call predecessors, (104), 104 states have call successors, (104) [2025-02-08 01:57:13,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2025-02-08 01:57:13,598 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 01:57:13,598 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 7, 7, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 01:57:13,599 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-08 01:57:13,603 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 01:57:13,603 INFO L85 PathProgramCache]: Analyzing trace with hash -1582757609, now seen corresponding path program 1 times [2025-02-08 01:57:13,608 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 01:57:13,608 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1045257840] [2025-02-08 01:57:13,609 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 01:57:13,609 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 01:57:18,178 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 153 statements into 1 equivalence classes. [2025-02-08 01:57:18,604 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 153 of 153 statements. [2025-02-08 01:57:18,604 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 01:57:18,604 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 01:57:19,121 INFO L134 CoverageAnalysis]: Checked inductivity of 230 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 214 trivial. 0 not checked. [2025-02-08 01:57:19,122 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 01:57:19,122 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1045257840] [2025-02-08 01:57:19,122 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1045257840] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 01:57:19,123 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2041271383] [2025-02-08 01:57:19,124 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 01:57:19,124 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 01:57:19,124 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 01:57:19,126 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 01:57:19,128 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-02-08 01:57:23,507 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 153 statements into 1 equivalence classes. [2025-02-08 01:57:23,989 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 153 of 153 statements. [2025-02-08 01:57:23,989 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 01:57:23,989 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 01:57:24,015 INFO L256 TraceCheckSpWp]: Trace formula consists of 4491 conjuncts, 1 conjuncts are in the unsatisfiable core [2025-02-08 01:57:24,023 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 01:57:24,039 INFO L134 CoverageAnalysis]: Checked inductivity of 230 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 196 trivial. 0 not checked. [2025-02-08 01:57:24,039 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-08 01:57:24,040 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2041271383] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 01:57:24,040 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-08 01:57:24,040 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2025-02-08 01:57:24,043 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1657932580] [2025-02-08 01:57:24,043 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 01:57:24,046 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-02-08 01:57:24,046 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 01:57:24,091 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-02-08 01:57:24,091 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-02-08 01:57:24,093 INFO L87 Difference]: Start difference. First operand has 315 states, 182 states have (on average 1.2362637362637363) internal successors, (225), 187 states have internal predecessors, (225), 104 states have call successors, (104), 23 states have call predecessors, (104), 23 states have return successors, (104), 104 states have call predecessors, (104), 104 states have call successors, (104) Second operand has 2 states, 2 states have (on average 25.0) internal successors, (50), 2 states have internal predecessors, (50), 2 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2025-02-08 01:57:24,138 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 01:57:24,139 INFO L93 Difference]: Finished difference Result 609 states and 900 transitions. [2025-02-08 01:57:24,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-02-08 01:57:24,141 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 25.0) internal successors, (50), 2 states have internal predecessors, (50), 2 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) Word has length 153 [2025-02-08 01:57:24,141 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 01:57:24,148 INFO L225 Difference]: With dead ends: 609 [2025-02-08 01:57:24,148 INFO L226 Difference]: Without dead ends: 303 [2025-02-08 01:57:24,153 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 154 GetRequests, 154 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-02-08 01:57:24,156 INFO L435 NwaCegarLoop]: 429 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, 429 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 [2025-02-08 01:57:24,156 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 429 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-08 01:57:24,169 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 303 states. [2025-02-08 01:57:24,208 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 303 to 303. [2025-02-08 01:57:24,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 303 states, 177 states have (on average 1.1977401129943503) internal successors, (212), 179 states have internal predecessors, (212), 102 states have call successors, (102), 23 states have call predecessors, (102), 23 states have return successors, (100), 100 states have call predecessors, (100), 100 states have call successors, (100) [2025-02-08 01:57:24,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 303 states to 303 states and 414 transitions. [2025-02-08 01:57:24,224 INFO L78 Accepts]: Start accepts. Automaton has 303 states and 414 transitions. Word has length 153 [2025-02-08 01:57:24,225 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 01:57:24,225 INFO L471 AbstractCegarLoop]: Abstraction has 303 states and 414 transitions. [2025-02-08 01:57:24,226 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 25.0) internal successors, (50), 2 states have internal predecessors, (50), 2 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2025-02-08 01:57:24,226 INFO L276 IsEmpty]: Start isEmpty. Operand 303 states and 414 transitions. [2025-02-08 01:57:24,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2025-02-08 01:57:24,233 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 01:57:24,233 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 7, 7, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 01:57:24,250 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2025-02-08 01:57:24,433 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2025-02-08 01:57:24,434 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-08 01:57:24,434 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 01:57:24,435 INFO L85 PathProgramCache]: Analyzing trace with hash 2133178072, now seen corresponding path program 1 times [2025-02-08 01:57:24,435 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 01:57:24,435 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [179990369] [2025-02-08 01:57:24,435 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 01:57:24,435 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 01:57:28,489 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 153 statements into 1 equivalence classes. [2025-02-08 01:57:28,714 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 153 of 153 statements. [2025-02-08 01:57:28,714 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 01:57:28,714 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 01:57:29,942 INFO L134 CoverageAnalysis]: Checked inductivity of 230 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 227 trivial. 0 not checked. [2025-02-08 01:57:29,942 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 01:57:29,942 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [179990369] [2025-02-08 01:57:29,943 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [179990369] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 01:57:29,943 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2009983536] [2025-02-08 01:57:29,943 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 01:57:29,943 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 01:57:29,943 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 01:57:29,948 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 01:57:29,950 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-02-08 01:57:34,269 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 153 statements into 1 equivalence classes. [2025-02-08 01:57:34,748 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 153 of 153 statements. [2025-02-08 01:57:34,748 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 01:57:34,748 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 01:57:34,778 INFO L256 TraceCheckSpWp]: Trace formula consists of 4491 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-02-08 01:57:34,784 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 01:57:35,680 INFO L134 CoverageAnalysis]: Checked inductivity of 230 backedges. 94 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2025-02-08 01:57:35,680 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-08 01:57:35,681 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2009983536] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 01:57:35,681 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-08 01:57:35,681 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 8 [2025-02-08 01:57:35,681 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [564347401] [2025-02-08 01:57:35,681 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 01:57:35,682 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-08 01:57:35,683 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 01:57:35,683 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-08 01:57:35,684 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2025-02-08 01:57:35,685 INFO L87 Difference]: Start difference. First operand 303 states and 414 transitions. Second operand has 5 states, 5 states have (on average 10.8) internal successors, (54), 5 states have internal predecessors, (54), 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) [2025-02-08 01:57:36,609 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 01:57:36,610 INFO L93 Difference]: Finished difference Result 563 states and 773 transitions. [2025-02-08 01:57:36,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-08 01:57:36,610 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 5 states have internal predecessors, (54), 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 153 [2025-02-08 01:57:36,611 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 01:57:36,614 INFO L225 Difference]: With dead ends: 563 [2025-02-08 01:57:36,615 INFO L226 Difference]: Without dead ends: 305 [2025-02-08 01:57:36,616 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 157 GetRequests, 151 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2025-02-08 01:57:36,617 INFO L435 NwaCegarLoop]: 395 mSDtfsCounter, 19 mSDsluCounter, 1132 mSDsCounter, 0 mSdLazyCounter, 76 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 1527 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 76 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2025-02-08 01:57:36,617 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 1527 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 76 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2025-02-08 01:57:36,618 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 305 states. [2025-02-08 01:57:36,635 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 305 to 305. [2025-02-08 01:57:36,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 305 states, 178 states have (on average 1.196629213483146) internal successors, (213), 181 states have internal predecessors, (213), 102 states have call successors, (102), 23 states have call predecessors, (102), 24 states have return successors, (104), 100 states have call predecessors, (104), 100 states have call successors, (104) [2025-02-08 01:57:36,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 305 states to 305 states and 419 transitions. [2025-02-08 01:57:36,643 INFO L78 Accepts]: Start accepts. Automaton has 305 states and 419 transitions. Word has length 153 [2025-02-08 01:57:36,643 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 01:57:36,643 INFO L471 AbstractCegarLoop]: Abstraction has 305 states and 419 transitions. [2025-02-08 01:57:36,643 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 5 states have internal predecessors, (54), 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) [2025-02-08 01:57:36,643 INFO L276 IsEmpty]: Start isEmpty. Operand 305 states and 419 transitions. [2025-02-08 01:57:36,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2025-02-08 01:57:36,645 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 01:57:36,645 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 7, 7, 3, 3, 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] [2025-02-08 01:57:36,671 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2025-02-08 01:57:36,846 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 01:57:36,846 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-08 01:57:36,847 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 01:57:36,847 INFO L85 PathProgramCache]: Analyzing trace with hash 844619610, now seen corresponding path program 1 times [2025-02-08 01:57:36,847 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 01:57:36,847 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1895001854] [2025-02-08 01:57:36,847 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 01:57:36,847 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 01:57:40,876 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 161 statements into 1 equivalence classes. [2025-02-08 01:57:40,991 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 161 of 161 statements. [2025-02-08 01:57:40,992 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 01:57:40,992 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 01:57:42,343 INFO L134 CoverageAnalysis]: Checked inductivity of 238 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 229 trivial. 0 not checked. [2025-02-08 01:57:42,343 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 01:57:42,343 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1895001854] [2025-02-08 01:57:42,343 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1895001854] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 01:57:42,343 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1717029550] [2025-02-08 01:57:42,343 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 01:57:42,343 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 01:57:42,344 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 01:57:42,345 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 01:57:42,346 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2025-02-08 01:57:46,614 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 161 statements into 1 equivalence classes. [2025-02-08 01:57:47,068 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 161 of 161 statements. [2025-02-08 01:57:47,068 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 01:57:47,068 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 01:57:47,092 INFO L256 TraceCheckSpWp]: Trace formula consists of 4541 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-02-08 01:57:47,101 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 01:57:48,846 INFO L134 CoverageAnalysis]: Checked inductivity of 238 backedges. 102 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2025-02-08 01:57:48,846 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-08 01:57:48,846 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1717029550] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 01:57:48,847 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-08 01:57:48,847 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [7] total 12 [2025-02-08 01:57:48,847 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1316789636] [2025-02-08 01:57:48,847 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 01:57:48,847 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-02-08 01:57:48,847 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 01:57:48,848 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-02-08 01:57:48,848 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2025-02-08 01:57:48,848 INFO L87 Difference]: Start difference. First operand 305 states and 419 transitions. Second operand has 7 states, 7 states have (on average 8.571428571428571) internal successors, (60), 7 states have internal predecessors, (60), 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) [2025-02-08 01:57:51,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 01:57:51,500 INFO L93 Difference]: Finished difference Result 586 states and 820 transitions. [2025-02-08 01:57:51,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-02-08 01:57:51,500 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.571428571428571) internal successors, (60), 7 states have internal predecessors, (60), 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 161 [2025-02-08 01:57:51,501 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 01:57:51,504 INFO L225 Difference]: With dead ends: 586 [2025-02-08 01:57:51,504 INFO L226 Difference]: Without dead ends: 326 [2025-02-08 01:57:51,505 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 168 GetRequests, 157 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=25, Invalid=131, Unknown=0, NotChecked=0, Total=156 [2025-02-08 01:57:51,505 INFO L435 NwaCegarLoop]: 383 mSDtfsCounter, 39 mSDsluCounter, 1840 mSDsCounter, 0 mSdLazyCounter, 233 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 2223 SdHoareTripleChecker+Invalid, 234 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 233 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2025-02-08 01:57:51,506 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [53 Valid, 2223 Invalid, 234 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 233 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2025-02-08 01:57:51,506 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 326 states. [2025-02-08 01:57:51,522 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 326 to 324. [2025-02-08 01:57:51,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 324 states, 194 states have (on average 1.211340206185567) internal successors, (235), 197 states have internal predecessors, (235), 104 states have call successors, (104), 23 states have call predecessors, (104), 25 states have return successors, (117), 103 states have call predecessors, (117), 102 states have call successors, (117) [2025-02-08 01:57:51,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 324 states to 324 states and 456 transitions. [2025-02-08 01:57:51,526 INFO L78 Accepts]: Start accepts. Automaton has 324 states and 456 transitions. Word has length 161 [2025-02-08 01:57:51,526 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 01:57:51,526 INFO L471 AbstractCegarLoop]: Abstraction has 324 states and 456 transitions. [2025-02-08 01:57:51,527 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.571428571428571) internal successors, (60), 7 states have internal predecessors, (60), 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) [2025-02-08 01:57:51,527 INFO L276 IsEmpty]: Start isEmpty. Operand 324 states and 456 transitions. [2025-02-08 01:57:51,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2025-02-08 01:57:51,528 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 01:57:51,528 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 7, 7, 3, 3, 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] [2025-02-08 01:57:51,547 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2025-02-08 01:57:51,733 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 [2025-02-08 01:57:51,733 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-08 01:57:51,733 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 01:57:51,734 INFO L85 PathProgramCache]: Analyzing trace with hash -1805803990, now seen corresponding path program 1 times [2025-02-08 01:57:51,734 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 01:57:51,734 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2045389770] [2025-02-08 01:57:51,734 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 01:57:51,734 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 01:57:55,489 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 175 statements into 1 equivalence classes. [2025-02-08 01:57:55,610 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 175 of 175 statements. [2025-02-08 01:57:55,610 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 01:57:55,611 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 01:57:56,809 INFO L134 CoverageAnalysis]: Checked inductivity of 238 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2025-02-08 01:57:56,809 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 01:57:56,809 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2045389770] [2025-02-08 01:57:56,809 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2045389770] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 01:57:56,809 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1673316818] [2025-02-08 01:57:56,809 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 01:57:56,809 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 01:57:56,809 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 01:57:56,812 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) [2025-02-08 01:57:56,813 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 [2025-02-08 01:58:01,257 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 175 statements into 1 equivalence classes. [2025-02-08 01:58:01,773 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 175 of 175 statements. [2025-02-08 01:58:01,773 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 01:58:01,773 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 01:58:01,806 INFO L256 TraceCheckSpWp]: Trace formula consists of 4668 conjuncts, 7 conjuncts are in the unsatisfiable core [2025-02-08 01:58:01,812 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 01:58:03,153 INFO L134 CoverageAnalysis]: Checked inductivity of 238 backedges. 102 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2025-02-08 01:58:03,153 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-08 01:58:03,153 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1673316818] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 01:58:03,153 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-08 01:58:03,153 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 10 [2025-02-08 01:58:03,154 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1625704002] [2025-02-08 01:58:03,154 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 01:58:03,154 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-08 01:58:03,154 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 01:58:03,155 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-08 01:58:03,155 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2025-02-08 01:58:03,155 INFO L87 Difference]: Start difference. First operand 324 states and 456 transitions. Second operand has 6 states, 6 states have (on average 11.666666666666666) internal successors, (70), 6 states have internal predecessors, (70), 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) [2025-02-08 01:58:04,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 01:58:04,673 INFO L93 Difference]: Finished difference Result 609 states and 864 transitions. [2025-02-08 01:58:04,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-08 01:58:04,674 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.666666666666666) internal successors, (70), 6 states have internal predecessors, (70), 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 175 [2025-02-08 01:58:04,675 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 01:58:04,677 INFO L225 Difference]: With dead ends: 609 [2025-02-08 01:58:04,677 INFO L226 Difference]: Without dead ends: 330 [2025-02-08 01:58:04,680 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 180 GetRequests, 172 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2025-02-08 01:58:04,680 INFO L435 NwaCegarLoop]: 389 mSDtfsCounter, 36 mSDsluCounter, 1474 mSDsCounter, 0 mSdLazyCounter, 136 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 1863 SdHoareTripleChecker+Invalid, 138 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 136 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2025-02-08 01:58:04,681 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 1863 Invalid, 138 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 136 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2025-02-08 01:58:04,682 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 330 states. [2025-02-08 01:58:04,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 330 to 324. [2025-02-08 01:58:04,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 324 states, 194 states have (on average 1.211340206185567) internal successors, (235), 197 states have internal predecessors, (235), 104 states have call successors, (104), 23 states have call predecessors, (104), 25 states have return successors, (117), 103 states have call predecessors, (117), 102 states have call successors, (117) [2025-02-08 01:58:04,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 324 states to 324 states and 456 transitions. [2025-02-08 01:58:04,708 INFO L78 Accepts]: Start accepts. Automaton has 324 states and 456 transitions. Word has length 175 [2025-02-08 01:58:04,708 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 01:58:04,708 INFO L471 AbstractCegarLoop]: Abstraction has 324 states and 456 transitions. [2025-02-08 01:58:04,709 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.666666666666666) internal successors, (70), 6 states have internal predecessors, (70), 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) [2025-02-08 01:58:04,709 INFO L276 IsEmpty]: Start isEmpty. Operand 324 states and 456 transitions. [2025-02-08 01:58:04,710 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2025-02-08 01:58:04,712 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 01:58:04,712 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] [2025-02-08 01:58:04,729 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2025-02-08 01:58:04,912 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 [2025-02-08 01:58:04,912 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-08 01:58:04,913 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 01:58:04,913 INFO L85 PathProgramCache]: Analyzing trace with hash -1110712646, now seen corresponding path program 1 times [2025-02-08 01:58:04,913 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 01:58:04,913 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [634524458] [2025-02-08 01:58:04,913 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 01:58:04,913 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 01:58:08,631 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 191 statements into 1 equivalence classes. [2025-02-08 01:58:08,720 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 191 of 191 statements. [2025-02-08 01:58:08,721 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 01:58:08,721 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 01:58:10,155 INFO L134 CoverageAnalysis]: Checked inductivity of 250 backedges. 3 proven. 9 refuted. 0 times theorem prover too weak. 238 trivial. 0 not checked. [2025-02-08 01:58:10,155 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 01:58:10,155 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [634524458] [2025-02-08 01:58:10,155 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [634524458] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 01:58:10,155 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [689260184] [2025-02-08 01:58:10,155 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 01:58:10,155 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 01:58:10,155 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 01:58:10,157 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) [2025-02-08 01:58:10,158 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 [2025-02-08 01:58:14,609 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 191 statements into 1 equivalence classes. [2025-02-08 01:58:15,024 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 191 of 191 statements. [2025-02-08 01:58:15,024 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 01:58:15,024 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 01:58:15,048 INFO L256 TraceCheckSpWp]: Trace formula consists of 4740 conjuncts, 8 conjuncts are in the unsatisfiable core [2025-02-08 01:58:15,061 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 01:58:17,369 INFO L134 CoverageAnalysis]: Checked inductivity of 250 backedges. 113 proven. 0 refuted. 0 times theorem prover too weak. 137 trivial. 0 not checked. [2025-02-08 01:58:17,369 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-08 01:58:17,369 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [689260184] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 01:58:17,369 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-08 01:58:17,369 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [8] total 14 [2025-02-08 01:58:17,370 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1295763854] [2025-02-08 01:58:17,370 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 01:58:17,371 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-02-08 01:58:17,371 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 01:58:17,371 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-02-08 01:58:17,371 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=157, Unknown=0, NotChecked=0, Total=182 [2025-02-08 01:58:17,371 INFO L87 Difference]: Start difference. First operand 324 states and 456 transitions. Second operand has 8 states, 8 states have (on average 10.5) internal successors, (84), 8 states have internal predecessors, (84), 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) [2025-02-08 01:58:20,798 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 01:58:20,798 INFO L93 Difference]: Finished difference Result 636 states and 903 transitions. [2025-02-08 01:58:20,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-02-08 01:58:20,799 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.5) internal successors, (84), 8 states have internal predecessors, (84), 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 191 [2025-02-08 01:58:20,799 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 01:58:20,802 INFO L225 Difference]: With dead ends: 636 [2025-02-08 01:58:20,802 INFO L226 Difference]: Without dead ends: 357 [2025-02-08 01:58:20,804 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 199 GetRequests, 186 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=29, Invalid=181, Unknown=0, NotChecked=0, Total=210 [2025-02-08 01:58:20,805 INFO L435 NwaCegarLoop]: 377 mSDtfsCounter, 61 mSDsluCounter, 2164 mSDsCounter, 0 mSdLazyCounter, 320 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 73 SdHoareTripleChecker+Valid, 2541 SdHoareTripleChecker+Invalid, 323 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 320 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2025-02-08 01:58:20,806 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [73 Valid, 2541 Invalid, 323 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 320 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2025-02-08 01:58:20,806 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 357 states. [2025-02-08 01:58:20,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 357 to 324. [2025-02-08 01:58:20,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 324 states, 194 states have (on average 1.211340206185567) internal successors, (235), 197 states have internal predecessors, (235), 104 states have call successors, (104), 23 states have call predecessors, (104), 25 states have return successors, (117), 103 states have call predecessors, (117), 102 states have call successors, (117) [2025-02-08 01:58:20,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 324 states to 324 states and 456 transitions. [2025-02-08 01:58:20,822 INFO L78 Accepts]: Start accepts. Automaton has 324 states and 456 transitions. Word has length 191 [2025-02-08 01:58:20,822 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 01:58:20,822 INFO L471 AbstractCegarLoop]: Abstraction has 324 states and 456 transitions. [2025-02-08 01:58:20,823 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.5) internal successors, (84), 8 states have internal predecessors, (84), 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) [2025-02-08 01:58:20,823 INFO L276 IsEmpty]: Start isEmpty. Operand 324 states and 456 transitions. [2025-02-08 01:58:20,824 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2025-02-08 01:58:20,825 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 01:58:20,825 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 7, 7, 4, 4, 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] [2025-02-08 01:58:20,845 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2025-02-08 01:58:21,026 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 [2025-02-08 01:58:21,028 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-08 01:58:21,028 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 01:58:21,028 INFO L85 PathProgramCache]: Analyzing trace with hash 558489130, now seen corresponding path program 2 times [2025-02-08 01:58:21,028 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 01:58:21,028 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [555105218] [2025-02-08 01:58:21,028 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-08 01:58:21,029 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 01:58:24,894 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 205 statements into 2 equivalence classes. [2025-02-08 01:58:25,308 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 205 of 205 statements. [2025-02-08 01:58:25,308 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-02-08 01:58:25,308 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 01:58:26,646 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 261 trivial. 0 not checked. [2025-02-08 01:58:26,651 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 01:58:26,651 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [555105218] [2025-02-08 01:58:26,651 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [555105218] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 01:58:26,651 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 01:58:26,651 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-02-08 01:58:26,651 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [971290866] [2025-02-08 01:58:26,651 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 01:58:26,651 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-02-08 01:58:26,652 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 01:58:26,652 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-02-08 01:58:26,652 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2025-02-08 01:58:26,652 INFO L87 Difference]: Start difference. First operand 324 states and 456 transitions. Second operand has 7 states, 6 states have (on average 12.333333333333334) internal successors, (74), 6 states have internal predecessors, (74), 4 states have call successors, (31), 3 states have call predecessors, (31), 2 states have return successors, (28), 3 states have call predecessors, (28), 4 states have call successors, (28) [2025-02-08 01:58:28,029 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 01:58:28,029 INFO L93 Difference]: Finished difference Result 571 states and 813 transitions. [2025-02-08 01:58:28,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-02-08 01:58:28,030 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 12.333333333333334) internal successors, (74), 6 states have internal predecessors, (74), 4 states have call successors, (31), 3 states have call predecessors, (31), 2 states have return successors, (28), 3 states have call predecessors, (28), 4 states have call successors, (28) Word has length 205 [2025-02-08 01:58:28,030 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 01:58:28,033 INFO L225 Difference]: With dead ends: 571 [2025-02-08 01:58:28,033 INFO L226 Difference]: Without dead ends: 326 [2025-02-08 01:58:28,034 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2025-02-08 01:58:28,034 INFO L435 NwaCegarLoop]: 392 mSDtfsCounter, 58 mSDsluCounter, 1847 mSDsCounter, 0 mSdLazyCounter, 123 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 2239 SdHoareTripleChecker+Invalid, 148 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 123 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2025-02-08 01:58:28,035 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [64 Valid, 2239 Invalid, 148 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 123 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2025-02-08 01:58:28,035 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 326 states. [2025-02-08 01:58:28,045 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 326 to 326. [2025-02-08 01:58:28,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 326 states, 195 states have (on average 1.2102564102564102) internal successors, (236), 199 states have internal predecessors, (236), 104 states have call successors, (104), 23 states have call predecessors, (104), 26 states have return successors, (119), 103 states have call predecessors, (119), 102 states have call successors, (119) [2025-02-08 01:58:28,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 326 states to 326 states and 459 transitions. [2025-02-08 01:58:28,048 INFO L78 Accepts]: Start accepts. Automaton has 326 states and 459 transitions. Word has length 205 [2025-02-08 01:58:28,048 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 01:58:28,048 INFO L471 AbstractCegarLoop]: Abstraction has 326 states and 459 transitions. [2025-02-08 01:58:28,048 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 12.333333333333334) internal successors, (74), 6 states have internal predecessors, (74), 4 states have call successors, (31), 3 states have call predecessors, (31), 2 states have return successors, (28), 3 states have call predecessors, (28), 4 states have call successors, (28) [2025-02-08 01:58:28,048 INFO L276 IsEmpty]: Start isEmpty. Operand 326 states and 459 transitions. [2025-02-08 01:58:28,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214 [2025-02-08 01:58:28,050 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 01:58:28,050 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 7, 7, 5, 5, 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, 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] [2025-02-08 01:58:28,050 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-02-08 01:58:28,051 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-08 01:58:28,051 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 01:58:28,051 INFO L85 PathProgramCache]: Analyzing trace with hash -91527320, now seen corresponding path program 1 times [2025-02-08 01:58:28,051 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 01:58:28,051 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [768168208] [2025-02-08 01:58:28,051 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 01:58:28,051 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 01:58:31,906 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 213 statements into 1 equivalence classes. [2025-02-08 01:58:32,036 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 213 of 213 statements. [2025-02-08 01:58:32,037 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 01:58:32,037 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 01:58:33,891 INFO L134 CoverageAnalysis]: Checked inductivity of 284 backedges. 13 proven. 6 refuted. 0 times theorem prover too weak. 265 trivial. 0 not checked. [2025-02-08 01:58:33,891 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 01:58:33,891 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [768168208] [2025-02-08 01:58:33,892 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [768168208] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 01:58:33,892 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1429894381] [2025-02-08 01:58:33,892 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 01:58:33,892 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 01:58:33,892 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 01:58:33,894 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) [2025-02-08 01:58:33,895 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