./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/aws-c-common/aws_hash_iter_next_harness_negated.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 551b0097 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/aws-c-common/aws_hash_iter_next_harness_negated.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 ae7ce2997d0c5bef92b3aae09bb2841f55ee37a1af1fdc34a25a2ace43ce8e46 --- Real Ultimate output --- This is Ultimate 0.3.0-?-551b009-m [2025-01-09 17:16:09,380 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-01-09 17:16:09,433 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2025-01-09 17:16:09,436 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-01-09 17:16:09,441 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-01-09 17:16:09,462 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-01-09 17:16:09,463 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-01-09 17:16:09,464 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-01-09 17:16:09,464 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-01-09 17:16:09,464 INFO L153 SettingsManager]: * Use memory slicer=true [2025-01-09 17:16:09,465 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-01-09 17:16:09,465 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-01-09 17:16:09,465 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-01-09 17:16:09,465 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-01-09 17:16:09,466 INFO L153 SettingsManager]: * Use SBE=true [2025-01-09 17:16:09,466 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-01-09 17:16:09,466 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-01-09 17:16:09,466 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-01-09 17:16:09,466 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-01-09 17:16:09,466 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-01-09 17:16:09,466 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-01-09 17:16:09,466 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-01-09 17:16:09,467 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-01-09 17:16:09,467 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-01-09 17:16:09,467 INFO L153 SettingsManager]: * Use constant arrays=true [2025-01-09 17:16:09,467 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-01-09 17:16:09,467 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 17:16:09,467 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-09 17:16:09,467 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 17:16:09,467 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 17:16:09,467 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-01-09 17:16:09,467 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 17:16:09,468 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-09 17:16:09,468 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 17:16:09,468 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 17:16:09,468 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-01-09 17:16:09,468 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-01-09 17:16:09,468 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-01-09 17:16:09,468 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-01-09 17:16:09,468 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-01-09 17:16:09,468 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-01-09 17:16:09,468 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-01-09 17:16:09,468 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-01-09 17:16:09,468 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-01-09 17:16:09,469 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-01-09 17:16:09,469 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 -> ae7ce2997d0c5bef92b3aae09bb2841f55ee37a1af1fdc34a25a2ace43ce8e46 [2025-01-09 17:16:09,684 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-01-09 17:16:09,690 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-01-09 17:16:09,695 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-01-09 17:16:09,695 INFO L270 PluginConnector]: Initializing CDTParser... [2025-01-09 17:16:09,695 INFO L274 PluginConnector]: CDTParser initialized [2025-01-09 17:16:09,697 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_hash_iter_next_harness_negated.i [2025-01-09 17:16:10,844 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/9b5c9e276/4f8bcf067bab42a8acea43acbe653757/FLAG28eb8e352 [2025-01-09 17:16:11,347 INFO L384 CDTParser]: Found 1 translation units. [2025-01-09 17:16:11,348 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_hash_iter_next_harness_negated.i [2025-01-09 17:16:11,384 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/9b5c9e276/4f8bcf067bab42a8acea43acbe653757/FLAG28eb8e352 [2025-01-09 17:16:11,429 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/9b5c9e276/4f8bcf067bab42a8acea43acbe653757 [2025-01-09 17:16:11,431 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-01-09 17:16:11,432 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-01-09 17:16:11,434 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-01-09 17:16:11,435 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-01-09 17:16:11,438 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-01-09 17:16:11,439 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 05:16:11" (1/1) ... [2025-01-09 17:16:11,439 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7747bfe6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:16:11, skipping insertion in model container [2025-01-09 17:16:11,439 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 05:16:11" (1/1) ... [2025-01-09 17:16:11,512 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-01-09 17:16:11,769 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_hash_iter_next_harness_negated.i[4492,4505] [2025-01-09 17:16:11,778 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_hash_iter_next_harness_negated.i[4552,4565] [2025-01-09 17:16:12,324 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:16:12,324 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:16:12,325 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:16:12,325 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:16:12,326 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:16:12,339 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:16:12,340 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:16:12,341 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:16:12,342 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:16:12,343 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:16:12,344 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:16:12,344 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:16:12,344 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:16:13,224 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:16:13,225 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:16:13,239 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:16:13,239 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:16:13,245 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:16:13,245 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:16:13,257 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:16:13,258 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:16:13,259 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:16:13,259 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:16:13,259 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:16:13,259 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:16:13,260 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:16:13,289 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_hash_iter_next_harness_negated.i[228192,228205] [2025-01-09 17:16:13,291 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 17:16:13,320 INFO L200 MainTranslator]: Completed pre-run [2025-01-09 17:16:13,332 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_hash_iter_next_harness_negated.i[4492,4505] [2025-01-09 17:16:13,333 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_hash_iter_next_harness_negated.i[4552,4565] [2025-01-09 17:16:13,363 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:16:13,363 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:16:13,363 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:16:13,363 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:16:13,364 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:16:13,370 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:16:13,370 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:16:13,371 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:16:13,371 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:16:13,373 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:16:13,373 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:16:13,373 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:16:13,374 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:16:13,429 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [7526-7537] [2025-01-09 17:16:13,560 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:16:13,561 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:16:13,567 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:16:13,568 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:16:13,569 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:16:13,570 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:16:13,576 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:16:13,577 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:16:13,577 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:16:13,578 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:16:13,579 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:16:13,579 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:16:13,579 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:16:13,594 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_hash_iter_next_harness_negated.i[228192,228205] [2025-01-09 17:16:13,595 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 17:16:13,735 INFO L204 MainTranslator]: Completed translation [2025-01-09 17:16:13,736 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:16:13 WrapperNode [2025-01-09 17:16:13,737 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-01-09 17:16:13,738 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-01-09 17:16:13,738 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-01-09 17:16:13,738 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-01-09 17:16:13,742 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:16:13" (1/1) ... [2025-01-09 17:16:13,803 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:16:13" (1/1) ... [2025-01-09 17:16:13,884 INFO L138 Inliner]: procedures = 763, calls = 2447, calls flagged for inlining = 68, calls inlined = 11, statements flattened = 643 [2025-01-09 17:16:13,884 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-01-09 17:16:13,885 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-01-09 17:16:13,885 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-01-09 17:16:13,885 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-01-09 17:16:13,891 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:16:13" (1/1) ... [2025-01-09 17:16:13,892 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:16:13" (1/1) ... [2025-01-09 17:16:13,896 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:16:13" (1/1) ... [2025-01-09 17:16:13,947 INFO L175 MemorySlicer]: Split 329 memory accesses to 9 slices as follows [238, 2, 3, 43, 2, 8, 22, 6, 5]. 72 percent of accesses are in the largest equivalence class. The 22 initializations are split as follows [6, 2, 0, 9, 0, 0, 0, 0, 5]. The 247 writes are split as follows [232, 0, 1, 9, 1, 1, 1, 2, 0]. [2025-01-09 17:16:13,948 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:16:13" (1/1) ... [2025-01-09 17:16:13,948 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:16:13" (1/1) ... [2025-01-09 17:16:13,993 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:16:13" (1/1) ... [2025-01-09 17:16:13,996 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:16:13" (1/1) ... [2025-01-09 17:16:14,002 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:16:13" (1/1) ... [2025-01-09 17:16:14,021 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:16:13" (1/1) ... [2025-01-09 17:16:14,029 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:16:13" (1/1) ... [2025-01-09 17:16:14,046 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-01-09 17:16:14,049 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-01-09 17:16:14,049 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-01-09 17:16:14,049 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-01-09 17:16:14,050 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:16:13" (1/1) ... [2025-01-09 17:16:14,056 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 17:16:14,068 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 17:16:14,082 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-01-09 17:16:14,088 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-01-09 17:16:14,108 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#0 [2025-01-09 17:16:14,110 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#1 [2025-01-09 17:16:14,110 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#2 [2025-01-09 17:16:14,110 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#3 [2025-01-09 17:16:14,110 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#4 [2025-01-09 17:16:14,110 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#5 [2025-01-09 17:16:14,110 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#6 [2025-01-09 17:16:14,110 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#7 [2025-01-09 17:16:14,110 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#8 [2025-01-09 17:16:14,110 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-01-09 17:16:14,111 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2025-01-09 17:16:14,111 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2025-01-09 17:16:14,111 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2025-01-09 17:16:14,111 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2025-01-09 17:16:14,111 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2025-01-09 17:16:14,111 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2025-01-09 17:16:14,111 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#6 [2025-01-09 17:16:14,111 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#7 [2025-01-09 17:16:14,111 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#8 [2025-01-09 17:16:14,112 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-01-09 17:16:14,112 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-01-09 17:16:14,112 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2025-01-09 17:16:14,112 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2025-01-09 17:16:14,112 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2025-01-09 17:16:14,112 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2025-01-09 17:16:14,112 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2025-01-09 17:16:14,112 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2025-01-09 17:16:14,112 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#8 [2025-01-09 17:16:14,112 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2025-01-09 17:16:14,112 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2025-01-09 17:16:14,112 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2025-01-09 17:16:14,112 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2025-01-09 17:16:14,112 INFO L130 BoogieDeclarations]: Found specification of procedure hash_table_state_is_valid [2025-01-09 17:16:14,112 INFO L138 BoogieDeclarations]: Found implementation of procedure hash_table_state_is_valid [2025-01-09 17:16:14,112 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-01-09 17:16:14,112 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-01-09 17:16:14,112 INFO L130 BoogieDeclarations]: Found specification of procedure aws_hash_iter_next [2025-01-09 17:16:14,113 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_hash_iter_next [2025-01-09 17:16:14,113 INFO L130 BoogieDeclarations]: Found specification of procedure hash_table_state_required_bytes [2025-01-09 17:16:14,113 INFO L138 BoogieDeclarations]: Found implementation of procedure hash_table_state_required_bytes [2025-01-09 17:16:14,113 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2025-01-09 17:16:14,113 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2025-01-09 17:16:14,113 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2025-01-09 17:16:14,113 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2025-01-09 17:16:14,113 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2025-01-09 17:16:14,113 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2025-01-09 17:16:14,113 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2025-01-09 17:16:14,113 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#7 [2025-01-09 17:16:14,113 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#8 [2025-01-09 17:16:14,113 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-01-09 17:16:14,113 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-01-09 17:16:14,113 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2025-01-09 17:16:14,113 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2025-01-09 17:16:14,113 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2025-01-09 17:16:14,113 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2025-01-09 17:16:14,113 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2025-01-09 17:16:14,113 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2025-01-09 17:16:14,113 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2025-01-09 17:16:14,113 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2025-01-09 17:16:14,113 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2025-01-09 17:16:14,113 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2025-01-09 17:16:14,113 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#6 [2025-01-09 17:16:14,113 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#7 [2025-01-09 17:16:14,113 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#8 [2025-01-09 17:16:14,113 INFO L130 BoogieDeclarations]: Found specification of procedure s_get_next_element [2025-01-09 17:16:14,113 INFO L138 BoogieDeclarations]: Found implementation of procedure s_get_next_element [2025-01-09 17:16:14,113 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2025-01-09 17:16:14,113 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2025-01-09 17:16:14,113 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-01-09 17:16:14,113 INFO L130 BoogieDeclarations]: Found specification of procedure aws_hash_iter_is_valid [2025-01-09 17:16:14,113 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_hash_iter_is_valid [2025-01-09 17:16:14,113 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_plus [2025-01-09 17:16:14,113 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_plus [2025-01-09 17:16:14,113 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2025-01-09 17:16:14,113 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2025-01-09 17:16:14,113 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2025-01-09 17:16:14,113 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2025-01-09 17:16:14,113 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2025-01-09 17:16:14,113 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2025-01-09 17:16:14,113 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2025-01-09 17:16:14,113 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#7 [2025-01-09 17:16:14,114 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#8 [2025-01-09 17:16:14,114 INFO L130 BoogieDeclarations]: Found specification of procedure aws_hash_table_is_valid [2025-01-09 17:16:14,114 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_hash_table_is_valid [2025-01-09 17:16:14,114 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2025-01-09 17:16:14,114 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2025-01-09 17:16:14,114 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2025-01-09 17:16:14,114 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2025-01-09 17:16:14,114 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2025-01-09 17:16:14,114 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2025-01-09 17:16:14,114 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#6 [2025-01-09 17:16:14,114 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#7 [2025-01-09 17:16:14,114 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#8 [2025-01-09 17:16:14,114 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2025-01-09 17:16:14,114 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2025-01-09 17:16:14,116 INFO L130 BoogieDeclarations]: Found specification of procedure aws_add_size_checked [2025-01-09 17:16:14,117 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_add_size_checked [2025-01-09 17:16:14,117 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2025-01-09 17:16:14,117 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2025-01-09 17:16:14,117 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-01-09 17:16:14,117 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-01-09 17:16:14,117 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2025-01-09 17:16:14,117 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2025-01-09 17:16:14,117 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2025-01-09 17:16:14,117 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2025-01-09 17:16:14,117 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2025-01-09 17:16:14,117 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2025-01-09 17:16:14,117 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#8 [2025-01-09 17:16:14,117 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-01-09 17:16:14,117 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-01-09 17:16:14,117 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-01-09 17:16:14,117 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2025-01-09 17:16:14,117 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2025-01-09 17:16:14,117 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2025-01-09 17:16:14,117 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2025-01-09 17:16:14,117 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2025-01-09 17:16:14,117 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2025-01-09 17:16:14,117 INFO L130 BoogieDeclarations]: Found specification of procedure aws_is_power_of_two [2025-01-09 17:16:14,117 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_is_power_of_two [2025-01-09 17:16:14,402 INFO L234 CfgBuilder]: Building ICFG [2025-01-09 17:16:14,404 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-01-09 17:16:20,286 INFO L? ?]: Removed 160 outVars from TransFormulas that were not future-live. [2025-01-09 17:16:20,287 INFO L283 CfgBuilder]: Performing block encoding [2025-01-09 17:16:20,296 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-01-09 17:16:20,297 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2025-01-09 17:16:20,298 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 05:16:20 BoogieIcfgContainer [2025-01-09 17:16:20,298 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-01-09 17:16:20,300 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-01-09 17:16:20,300 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-01-09 17:16:20,303 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-01-09 17:16:20,303 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.01 05:16:11" (1/3) ... [2025-01-09 17:16:20,304 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64cfe7c8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 05:16:20, skipping insertion in model container [2025-01-09 17:16:20,304 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:16:13" (2/3) ... [2025-01-09 17:16:20,305 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64cfe7c8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 05:16:20, skipping insertion in model container [2025-01-09 17:16:20,305 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 05:16:20" (3/3) ... [2025-01-09 17:16:20,305 INFO L128 eAbstractionObserver]: Analyzing ICFG aws_hash_iter_next_harness_negated.i [2025-01-09 17:16:20,316 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-01-09 17:16:20,319 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG aws_hash_iter_next_harness_negated.i that has 17 procedures, 171 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2025-01-09 17:16:20,362 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-01-09 17:16:20,369 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;@23494c92, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-01-09 17:16:20,370 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-01-09 17:16:20,373 INFO L276 IsEmpty]: Start isEmpty. Operand has 171 states, 110 states have (on average 1.2545454545454546) internal successors, (138), 111 states have internal predecessors, (138), 43 states have call successors, (43), 16 states have call predecessors, (43), 16 states have return successors, (43), 43 states have call predecessors, (43), 43 states have call successors, (43) [2025-01-09 17:16:20,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2025-01-09 17:16:20,384 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 17:16:20,384 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 3, 3, 3, 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] [2025-01-09 17:16:20,385 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 17:16:20,388 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 17:16:20,388 INFO L85 PathProgramCache]: Analyzing trace with hash 931025047, now seen corresponding path program 1 times [2025-01-09 17:16:20,393 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 17:16:20,394 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1083725908] [2025-01-09 17:16:20,394 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 17:16:20,395 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 17:16:24,813 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 155 statements into 1 equivalence classes. [2025-01-09 17:16:25,106 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 155 of 155 statements. [2025-01-09 17:16:25,106 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 17:16:25,106 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 17:16:26,232 INFO L134 CoverageAnalysis]: Checked inductivity of 214 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 207 trivial. 0 not checked. [2025-01-09 17:16:26,232 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 17:16:26,232 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1083725908] [2025-01-09 17:16:26,232 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1083725908] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 17:16:26,232 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [644494530] [2025-01-09 17:16:26,232 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 17:16:26,233 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 17:16:26,233 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 17:16:26,237 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-09 17:16:26,239 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-01-09 17:16:30,466 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 155 statements into 1 equivalence classes. [2025-01-09 17:16:30,984 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 155 of 155 statements. [2025-01-09 17:16:30,984 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 17:16:30,984 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 17:16:31,005 INFO L256 TraceCheckSpWp]: Trace formula consists of 4566 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-01-09 17:16:31,014 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 17:16:33,132 INFO L134 CoverageAnalysis]: Checked inductivity of 214 backedges. 130 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2025-01-09 17:16:33,132 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 17:16:33,133 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [644494530] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 17:16:33,133 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-09 17:16:33,133 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [5] total 9 [2025-01-09 17:16:33,135 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [429409659] [2025-01-09 17:16:33,135 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 17:16:33,138 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-01-09 17:16:33,138 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 17:16:33,150 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-01-09 17:16:33,150 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2025-01-09 17:16:33,152 INFO L87 Difference]: Start difference. First operand has 171 states, 110 states have (on average 1.2545454545454546) internal successors, (138), 111 states have internal predecessors, (138), 43 states have call successors, (43), 16 states have call predecessors, (43), 16 states have return successors, (43), 43 states have call predecessors, (43), 43 states have call successors, (43) Second operand has 6 states, 5 states have (on average 15.4) internal successors, (77), 5 states have internal predecessors, (77), 3 states have call successors, (27), 3 states have call predecessors, (27), 3 states have return successors, (24), 2 states have call predecessors, (24), 3 states have call successors, (24) [2025-01-09 17:16:35,090 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 17:16:35,090 INFO L93 Difference]: Finished difference Result 340 states and 487 transitions. [2025-01-09 17:16:35,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-01-09 17:16:35,093 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 15.4) internal successors, (77), 5 states have internal predecessors, (77), 3 states have call successors, (27), 3 states have call predecessors, (27), 3 states have return successors, (24), 2 states have call predecessors, (24), 3 states have call successors, (24) Word has length 155 [2025-01-09 17:16:35,093 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 17:16:35,099 INFO L225 Difference]: With dead ends: 340 [2025-01-09 17:16:35,099 INFO L226 Difference]: Without dead ends: 171 [2025-01-09 17:16:35,104 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 162 GetRequests, 152 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2025-01-09 17:16:35,108 INFO L435 NwaCegarLoop]: 187 mSDtfsCounter, 185 mSDsluCounter, 521 mSDsCounter, 0 mSdLazyCounter, 146 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 191 SdHoareTripleChecker+Valid, 708 SdHoareTripleChecker+Invalid, 179 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 146 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2025-01-09 17:16:35,111 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [191 Valid, 708 Invalid, 179 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 146 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2025-01-09 17:16:35,123 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 171 states. [2025-01-09 17:16:35,148 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 171 to 167. [2025-01-09 17:16:35,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 167 states, 106 states have (on average 1.2358490566037736) internal successors, (131), 108 states have internal predecessors, (131), 43 states have call successors, (43), 16 states have call predecessors, (43), 17 states have return successors, (45), 42 states have call predecessors, (45), 42 states have call successors, (45) [2025-01-09 17:16:35,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 167 states and 219 transitions. [2025-01-09 17:16:35,156 INFO L78 Accepts]: Start accepts. Automaton has 167 states and 219 transitions. Word has length 155 [2025-01-09 17:16:35,156 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 17:16:35,156 INFO L471 AbstractCegarLoop]: Abstraction has 167 states and 219 transitions. [2025-01-09 17:16:35,157 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 15.4) internal successors, (77), 5 states have internal predecessors, (77), 3 states have call successors, (27), 3 states have call predecessors, (27), 3 states have return successors, (24), 2 states have call predecessors, (24), 3 states have call successors, (24) [2025-01-09 17:16:35,157 INFO L276 IsEmpty]: Start isEmpty. Operand 167 states and 219 transitions. [2025-01-09 17:16:35,159 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2025-01-09 17:16:35,160 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 17:16:35,160 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 3, 3, 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] [2025-01-09 17:16:35,176 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2025-01-09 17:16:35,364 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2025-01-09 17:16:35,365 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 17:16:35,365 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 17:16:35,365 INFO L85 PathProgramCache]: Analyzing trace with hash -971379661, now seen corresponding path program 1 times [2025-01-09 17:16:35,366 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 17:16:35,366 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [7149510] [2025-01-09 17:16:35,366 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 17:16:35,366 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 17:16:39,159 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 156 statements into 1 equivalence classes. [2025-01-09 17:16:39,229 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 156 of 156 statements. [2025-01-09 17:16:39,229 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 17:16:39,229 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 17:16:39,960 INFO L134 CoverageAnalysis]: Checked inductivity of 214 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 207 trivial. 0 not checked. [2025-01-09 17:16:39,961 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 17:16:39,961 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [7149510] [2025-01-09 17:16:39,961 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [7149510] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 17:16:39,961 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [143342824] [2025-01-09 17:16:39,961 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 17:16:39,961 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 17:16:39,961 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 17:16:39,965 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-09 17:16:39,965 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-01-09 17:16:44,305 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 156 statements into 1 equivalence classes. [2025-01-09 17:16:44,734 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 156 of 156 statements. [2025-01-09 17:16:44,734 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 17:16:44,734 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 17:16:44,752 INFO L256 TraceCheckSpWp]: Trace formula consists of 4571 conjuncts, 7 conjuncts are in the unsatisfiable core [2025-01-09 17:16:44,759 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 17:16:47,276 INFO L134 CoverageAnalysis]: Checked inductivity of 214 backedges. 102 proven. 55 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2025-01-09 17:16:47,280 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-09 17:16:50,571 INFO L134 CoverageAnalysis]: Checked inductivity of 214 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 208 trivial. 0 not checked. [2025-01-09 17:16:50,572 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [143342824] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-09 17:16:50,572 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-09 17:16:50,572 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 8, 8] total 16 [2025-01-09 17:16:50,572 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [305029314] [2025-01-09 17:16:50,572 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-09 17:16:50,575 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2025-01-09 17:16:50,575 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 17:16:50,577 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2025-01-09 17:16:50,578 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=205, Unknown=0, NotChecked=0, Total=240 [2025-01-09 17:16:50,578 INFO L87 Difference]: Start difference. First operand 167 states and 219 transitions. Second operand has 16 states, 14 states have (on average 10.0) internal successors, (140), 14 states have internal predecessors, (140), 8 states have call successors, (63), 5 states have call predecessors, (63), 5 states have return successors, (59), 7 states have call predecessors, (59), 8 states have call successors, (59) [2025-01-09 17:16:55,915 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 17:16:55,916 INFO L93 Difference]: Finished difference Result 331 states and 439 transitions. [2025-01-09 17:16:55,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2025-01-09 17:16:55,916 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 14 states have (on average 10.0) internal successors, (140), 14 states have internal predecessors, (140), 8 states have call successors, (63), 5 states have call predecessors, (63), 5 states have return successors, (59), 7 states have call predecessors, (59), 8 states have call successors, (59) Word has length 156 [2025-01-09 17:16:55,917 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 17:16:55,919 INFO L225 Difference]: With dead ends: 331 [2025-01-09 17:16:55,921 INFO L226 Difference]: Without dead ends: 176 [2025-01-09 17:16:55,922 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 324 GetRequests, 301 SyntacticMatches, 1 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=83, Invalid=469, Unknown=0, NotChecked=0, Total=552 [2025-01-09 17:16:55,923 INFO L435 NwaCegarLoop]: 172 mSDtfsCounter, 206 mSDsluCounter, 1499 mSDsCounter, 0 mSdLazyCounter, 415 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 208 SdHoareTripleChecker+Valid, 1671 SdHoareTripleChecker+Invalid, 476 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 415 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2025-01-09 17:16:55,923 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [208 Valid, 1671 Invalid, 476 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 415 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2025-01-09 17:16:55,924 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 176 states. [2025-01-09 17:16:55,935 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 176 to 172. [2025-01-09 17:16:55,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 172 states, 110 states have (on average 1.2272727272727273) internal successors, (135), 112 states have internal predecessors, (135), 43 states have call successors, (43), 16 states have call predecessors, (43), 18 states have return successors, (44), 43 states have call predecessors, (44), 42 states have call successors, (44) [2025-01-09 17:16:55,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172 states to 172 states and 222 transitions. [2025-01-09 17:16:55,937 INFO L78 Accepts]: Start accepts. Automaton has 172 states and 222 transitions. Word has length 156 [2025-01-09 17:16:55,944 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 17:16:55,944 INFO L471 AbstractCegarLoop]: Abstraction has 172 states and 222 transitions. [2025-01-09 17:16:55,945 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 14 states have (on average 10.0) internal successors, (140), 14 states have internal predecessors, (140), 8 states have call successors, (63), 5 states have call predecessors, (63), 5 states have return successors, (59), 7 states have call predecessors, (59), 8 states have call successors, (59) [2025-01-09 17:16:55,945 INFO L276 IsEmpty]: Start isEmpty. Operand 172 states and 222 transitions. [2025-01-09 17:16:55,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2025-01-09 17:16:55,947 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 17:16:55,949 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2025-01-09 17:16:55,969 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2025-01-09 17:16:56,153 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 17:16:56,153 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 17:16:56,154 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 17:16:56,154 INFO L85 PathProgramCache]: Analyzing trace with hash 1392093197, now seen corresponding path program 1 times [2025-01-09 17:16:56,154 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 17:16:56,154 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [341339531] [2025-01-09 17:16:56,154 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 17:16:56,154 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 17:16:59,801 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 169 statements into 1 equivalence classes. [2025-01-09 17:16:59,902 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 169 of 169 statements. [2025-01-09 17:16:59,904 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 17:16:59,905 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 17:17:03,370 INFO L134 CoverageAnalysis]: Checked inductivity of 221 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 215 trivial. 0 not checked. [2025-01-09 17:17:03,371 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 17:17:03,371 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [341339531] [2025-01-09 17:17:03,371 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [341339531] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 17:17:03,371 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [459999592] [2025-01-09 17:17:03,371 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 17:17:03,371 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 17:17:03,371 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 17:17:03,373 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-09 17:17:03,374 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2025-01-09 17:17:07,647 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 169 statements into 1 equivalence classes. [2025-01-09 17:17:08,069 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 169 of 169 statements. [2025-01-09 17:17:08,069 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 17:17:08,069 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 17:17:08,087 INFO L256 TraceCheckSpWp]: Trace formula consists of 4584 conjuncts, 9 conjuncts are in the unsatisfiable core [2025-01-09 17:17:08,093 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 17:17:11,890 INFO L134 CoverageAnalysis]: Checked inductivity of 221 backedges. 6 proven. 128 refuted. 0 times theorem prover too weak. 87 trivial. 0 not checked. [2025-01-09 17:17:11,890 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-09 17:17:16,744 INFO L134 CoverageAnalysis]: Checked inductivity of 221 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 215 trivial. 0 not checked. [2025-01-09 17:17:16,744 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [459999592] provided 1 perfect and 1 imperfect interpolant sequences [2025-01-09 17:17:16,745 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2025-01-09 17:17:16,745 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [10, 10] total 25 [2025-01-09 17:17:16,745 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [271916143] [2025-01-09 17:17:16,745 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 17:17:16,745 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-01-09 17:17:16,745 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 17:17:16,746 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-01-09 17:17:16,747 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=542, Unknown=0, NotChecked=0, Total=600 [2025-01-09 17:17:16,747 INFO L87 Difference]: Start difference. First operand 172 states and 222 transitions. Second operand has 10 states, 10 states have (on average 6.3) internal successors, (63), 8 states have internal predecessors, (63), 6 states have call successors, (26), 4 states have call predecessors, (26), 2 states have return successors, (23), 6 states have call predecessors, (23), 5 states have call successors, (23) [2025-01-09 17:17:21,665 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 17:17:21,665 INFO L93 Difference]: Finished difference Result 252 states and 330 transitions. [2025-01-09 17:17:21,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-01-09 17:17:21,666 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 6.3) internal successors, (63), 8 states have internal predecessors, (63), 6 states have call successors, (26), 4 states have call predecessors, (26), 2 states have return successors, (23), 6 states have call predecessors, (23), 5 states have call successors, (23) Word has length 169 [2025-01-09 17:17:21,667 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 17:17:21,669 INFO L225 Difference]: With dead ends: 252 [2025-01-09 17:17:21,669 INFO L226 Difference]: Without dead ends: 176 [2025-01-09 17:17:21,670 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 355 GetRequests, 324 SyntacticMatches, 1 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 91 ImplicationChecksByTransitivity, 6.8s TimeCoverageRelationStatistics Valid=92, Invalid=900, Unknown=0, NotChecked=0, Total=992 [2025-01-09 17:17:21,670 INFO L435 NwaCegarLoop]: 166 mSDtfsCounter, 229 mSDsluCounter, 959 mSDsCounter, 0 mSdLazyCounter, 318 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 229 SdHoareTripleChecker+Valid, 1125 SdHoareTripleChecker+Invalid, 382 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 318 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2025-01-09 17:17:21,670 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [229 Valid, 1125 Invalid, 382 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 318 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2025-01-09 17:17:21,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 176 states. [2025-01-09 17:17:21,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 176 to 170. [2025-01-09 17:17:21,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 170 states, 109 states have (on average 1.2201834862385321) internal successors, (133), 110 states have internal predecessors, (133), 43 states have call successors, (43), 16 states have call predecessors, (43), 17 states have return successors, (43), 43 states have call predecessors, (43), 42 states have call successors, (43) [2025-01-09 17:17:21,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 170 states to 170 states and 219 transitions. [2025-01-09 17:17:21,685 INFO L78 Accepts]: Start accepts. Automaton has 170 states and 219 transitions. Word has length 169 [2025-01-09 17:17:21,685 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 17:17:21,685 INFO L471 AbstractCegarLoop]: Abstraction has 170 states and 219 transitions. [2025-01-09 17:17:21,685 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 6.3) internal successors, (63), 8 states have internal predecessors, (63), 6 states have call successors, (26), 4 states have call predecessors, (26), 2 states have return successors, (23), 6 states have call predecessors, (23), 5 states have call successors, (23) [2025-01-09 17:17:21,686 INFO L276 IsEmpty]: Start isEmpty. Operand 170 states and 219 transitions. [2025-01-09 17:17:21,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2025-01-09 17:17:21,687 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 17:17:21,688 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 17:17:21,705 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2025-01-09 17:17:21,888 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 17:17:21,889 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 17:17:21,889 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 17:17:21,889 INFO L85 PathProgramCache]: Analyzing trace with hash 1931181133, now seen corresponding path program 1 times [2025-01-09 17:17:21,889 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 17:17:21,889 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2107516086] [2025-01-09 17:17:21,890 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 17:17:21,890 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 17:17:25,655 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 170 statements into 1 equivalence classes. [2025-01-09 17:17:25,730 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 170 of 170 statements. [2025-01-09 17:17:25,731 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 17:17:25,731 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 17:17:28,870 INFO L134 CoverageAnalysis]: Checked inductivity of 223 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 217 trivial. 0 not checked. [2025-01-09 17:17:28,870 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 17:17:28,870 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2107516086] [2025-01-09 17:17:28,870 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2107516086] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 17:17:28,870 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [558984374] [2025-01-09 17:17:28,870 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 17:17:28,870 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 17:17:28,871 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 17:17:28,873 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-09 17:17:28,874 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2025-01-09 17:17:33,032 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 170 statements into 1 equivalence classes. [2025-01-09 17:17:33,466 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 170 of 170 statements. [2025-01-09 17:17:33,466 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 17:17:33,466 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 17:17:33,486 INFO L256 TraceCheckSpWp]: Trace formula consists of 4589 conjuncts, 14 conjuncts are in the unsatisfiable core [2025-01-09 17:17:33,492 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 17:17:34,188 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2025-01-09 17:17:35,849 INFO L134 CoverageAnalysis]: Checked inductivity of 223 backedges. 138 proven. 0 refuted. 0 times theorem prover too weak. 85 trivial. 0 not checked. [2025-01-09 17:17:35,849 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 17:17:35,850 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [558984374] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 17:17:35,850 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-09 17:17:35,850 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [10] total 17 [2025-01-09 17:17:35,850 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [283671653] [2025-01-09 17:17:35,850 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 17:17:35,850 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-01-09 17:17:35,850 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 17:17:35,851 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-01-09 17:17:35,851 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=234, Unknown=0, NotChecked=0, Total=272 [2025-01-09 17:17:35,851 INFO L87 Difference]: Start difference. First operand 170 states and 219 transitions. Second operand has 9 states, 8 states have (on average 10.875) internal successors, (87), 8 states have internal predecessors, (87), 4 states have call successors, (29), 3 states have call predecessors, (29), 3 states have return successors, (26), 3 states have call predecessors, (26), 4 states have call successors, (26) [2025-01-09 17:17:39,911 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2025-01-09 17:17:44,455 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0]