./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/aws-c-common/aws_hash_iter_delete_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_delete_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 60df7e35dcff08963d901f2f5294003ca0b3fa53fdb8a894278bffc5d6309871 --- Real Ultimate output --- This is Ultimate 0.3.0-?-551b009-m [2025-01-09 17:15:38,419 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-01-09 17:15:38,474 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2025-01-09 17:15:38,477 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-01-09 17:15:38,477 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-01-09 17:15:38,491 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-01-09 17:15:38,491 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-01-09 17:15:38,491 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-01-09 17:15:38,492 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-01-09 17:15:38,492 INFO L153 SettingsManager]: * Use memory slicer=true [2025-01-09 17:15:38,492 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-01-09 17:15:38,492 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-01-09 17:15:38,492 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-01-09 17:15:38,492 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-01-09 17:15:38,492 INFO L153 SettingsManager]: * Use SBE=true [2025-01-09 17:15:38,493 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-01-09 17:15:38,493 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-01-09 17:15:38,493 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-01-09 17:15:38,493 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-01-09 17:15:38,493 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-01-09 17:15:38,493 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-01-09 17:15:38,493 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-01-09 17:15:38,493 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-01-09 17:15:38,493 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-01-09 17:15:38,493 INFO L153 SettingsManager]: * Use constant arrays=true [2025-01-09 17:15:38,493 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-01-09 17:15:38,493 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 17:15:38,494 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-09 17:15:38,494 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 17:15:38,494 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 17:15:38,494 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-01-09 17:15:38,494 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 17:15:38,494 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-09 17:15:38,494 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 17:15:38,494 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 17:15:38,494 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-01-09 17:15:38,494 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-01-09 17:15:38,495 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-01-09 17:15:38,495 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-01-09 17:15:38,495 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-01-09 17:15:38,495 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-01-09 17:15:38,495 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-01-09 17:15:38,495 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-01-09 17:15:38,495 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-01-09 17:15:38,495 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-01-09 17:15:38,495 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 -> 60df7e35dcff08963d901f2f5294003ca0b3fa53fdb8a894278bffc5d6309871 [2025-01-09 17:15:38,732 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-01-09 17:15:38,739 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-01-09 17:15:38,743 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-01-09 17:15:38,744 INFO L270 PluginConnector]: Initializing CDTParser... [2025-01-09 17:15:38,744 INFO L274 PluginConnector]: CDTParser initialized [2025-01-09 17:15:38,745 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_hash_iter_delete_harness_negated.i [2025-01-09 17:15:39,971 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/24a203bd2/819c24609421458081b94f078f962b15/FLAG41890adfd [2025-01-09 17:15:40,498 INFO L384 CDTParser]: Found 1 translation units. [2025-01-09 17:15:40,498 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_hash_iter_delete_harness_negated.i [2025-01-09 17:15:40,530 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/24a203bd2/819c24609421458081b94f078f962b15/FLAG41890adfd [2025-01-09 17:15:40,553 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/24a203bd2/819c24609421458081b94f078f962b15 [2025-01-09 17:15:40,555 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-01-09 17:15:40,555 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-01-09 17:15:40,556 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-01-09 17:15:40,556 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-01-09 17:15:40,559 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-01-09 17:15:40,559 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 05:15:40" (1/1) ... [2025-01-09 17:15:40,560 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5e30d81e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:15:40, skipping insertion in model container [2025-01-09 17:15:40,560 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 05:15:40" (1/1) ... [2025-01-09 17:15:40,631 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-01-09 17:15:40,878 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_delete_harness_negated.i[4494,4507] [2025-01-09 17:15:40,885 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_delete_harness_negated.i[4554,4567] [2025-01-09 17:15:41,597 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:15:41,601 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:15:41,601 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:15:41,602 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:15:41,603 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:15:41,616 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:15:41,616 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:15:41,618 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:15:41,618 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:15:41,619 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:15:41,620 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:15:41,620 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:15:41,620 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:15:42,440 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:15:42,441 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:15:42,465 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:15:42,465 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:15:42,470 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:15:42,472 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:15:42,483 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:15:42,484 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:15:42,485 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:15:42,485 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:15:42,485 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:15:42,485 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:15:42,486 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:15:42,516 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_hash_iter_delete_harness_negated.i[228285,228298] [2025-01-09 17:15:42,516 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 17:15:42,540 INFO L200 MainTranslator]: Completed pre-run [2025-01-09 17:15:42,556 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_delete_harness_negated.i[4494,4507] [2025-01-09 17:15:42,556 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_delete_harness_negated.i[4554,4567] [2025-01-09 17:15:42,592 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:15:42,593 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:15:42,593 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:15:42,593 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:15:42,594 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:15:42,600 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:15:42,600 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:15:42,601 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:15:42,601 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:15:42,602 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:15:42,603 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:15:42,603 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:15:42,603 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:15:42,676 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [7526-7537] [2025-01-09 17:15:42,812 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:15:42,812 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:15:42,817 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:15:42,817 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:15:42,819 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:15:42,819 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:15:42,824 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:15:42,824 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:15:42,825 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:15:42,825 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:15:42,825 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:15:42,825 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:15:42,826 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:15:42,840 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_delete_harness_negated.i[228285,228298] [2025-01-09 17:15:42,841 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 17:15:42,983 INFO L204 MainTranslator]: Completed translation [2025-01-09 17:15:42,984 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:15:42 WrapperNode [2025-01-09 17:15:42,984 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-01-09 17:15:42,985 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-01-09 17:15:42,985 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-01-09 17:15:42,985 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-01-09 17:15:42,989 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:15:42" (1/1) ... [2025-01-09 17:15:43,049 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:15:42" (1/1) ... [2025-01-09 17:15:43,125 INFO L138 Inliner]: procedures = 763, calls = 2455, calls flagged for inlining = 67, calls inlined = 11, statements flattened = 747 [2025-01-09 17:15:43,125 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-01-09 17:15:43,129 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-01-09 17:15:43,129 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-01-09 17:15:43,129 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-01-09 17:15:43,136 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:15:42" (1/1) ... [2025-01-09 17:15:43,137 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:15:42" (1/1) ... [2025-01-09 17:15:43,142 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:15:42" (1/1) ... [2025-01-09 17:15:43,203 INFO L175 MemorySlicer]: Split 348 memory accesses to 9 slices as follows [2, 45, 40, 2, 1, 13, 238, 2, 5]. 68 percent of accesses are in the largest equivalence class. The 22 initializations are split as follows [2, 0, 9, 0, 0, 0, 6, 0, 5]. The 246 writes are split as follows [0, 6, 4, 1, 1, 1, 232, 1, 0]. [2025-01-09 17:15:43,203 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:15:42" (1/1) ... [2025-01-09 17:15:43,203 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:15:42" (1/1) ... [2025-01-09 17:15:43,244 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:15:42" (1/1) ... [2025-01-09 17:15:43,249 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:15:42" (1/1) ... [2025-01-09 17:15:43,252 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:15:42" (1/1) ... [2025-01-09 17:15:43,273 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:15:42" (1/1) ... [2025-01-09 17:15:43,281 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:15:42" (1/1) ... [2025-01-09 17:15:43,298 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-01-09 17:15:43,303 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-01-09 17:15:43,303 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-01-09 17:15:43,303 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-01-09 17:15:43,304 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:15:42" (1/1) ... [2025-01-09 17:15:43,308 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 17:15:43,317 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 17:15:43,332 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 17:15:43,334 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 17:15:43,349 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#0 [2025-01-09 17:15:43,349 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#1 [2025-01-09 17:15:43,349 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#2 [2025-01-09 17:15:43,349 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#3 [2025-01-09 17:15:43,349 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#4 [2025-01-09 17:15:43,349 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#5 [2025-01-09 17:15:43,349 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#6 [2025-01-09 17:15:43,349 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#7 [2025-01-09 17:15:43,349 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#8 [2025-01-09 17:15:43,350 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-01-09 17:15:43,350 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2025-01-09 17:15:43,350 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2025-01-09 17:15:43,350 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2025-01-09 17:15:43,350 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2025-01-09 17:15:43,350 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2025-01-09 17:15:43,350 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2025-01-09 17:15:43,350 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2025-01-09 17:15:43,350 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2025-01-09 17:15:43,350 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#6 [2025-01-09 17:15:43,350 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#7 [2025-01-09 17:15:43,350 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#8 [2025-01-09 17:15:43,350 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-01-09 17:15:43,350 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-01-09 17:15:43,350 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2025-01-09 17:15:43,351 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2025-01-09 17:15:43,351 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2025-01-09 17:15:43,351 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2025-01-09 17:15:43,351 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2025-01-09 17:15:43,351 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2025-01-09 17:15:43,351 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#8 [2025-01-09 17:15:43,351 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2025-01-09 17:15:43,351 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2025-01-09 17:15:43,351 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2025-01-09 17:15:43,351 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2025-01-09 17:15:43,351 INFO L130 BoogieDeclarations]: Found specification of procedure hash_table_state_is_valid [2025-01-09 17:15:43,351 INFO L138 BoogieDeclarations]: Found implementation of procedure hash_table_state_is_valid [2025-01-09 17:15:43,351 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-01-09 17:15:43,351 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-01-09 17:15:43,351 INFO L130 BoogieDeclarations]: Found specification of procedure hash_table_state_required_bytes [2025-01-09 17:15:43,351 INFO L138 BoogieDeclarations]: Found implementation of procedure hash_table_state_required_bytes [2025-01-09 17:15:43,352 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2025-01-09 17:15:43,352 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2025-01-09 17:15:43,352 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2025-01-09 17:15:43,352 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2025-01-09 17:15:43,352 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2025-01-09 17:15:43,352 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2025-01-09 17:15:43,352 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2025-01-09 17:15:43,352 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#7 [2025-01-09 17:15:43,352 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#8 [2025-01-09 17:15:43,352 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2025-01-09 17:15:43,352 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2025-01-09 17:15:43,352 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-01-09 17:15:43,352 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-01-09 17:15:43,352 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2025-01-09 17:15:43,352 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2025-01-09 17:15:43,352 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2025-01-09 17:15:43,353 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2025-01-09 17:15:43,353 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2025-01-09 17:15:43,353 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2025-01-09 17:15:43,353 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2025-01-09 17:15:43,353 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2025-01-09 17:15:43,353 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2025-01-09 17:15:43,353 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2025-01-09 17:15:43,353 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#6 [2025-01-09 17:15:43,353 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#7 [2025-01-09 17:15:43,353 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#8 [2025-01-09 17:15:43,353 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#0 [2025-01-09 17:15:43,353 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#1 [2025-01-09 17:15:43,353 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#2 [2025-01-09 17:15:43,354 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#3 [2025-01-09 17:15:43,354 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#4 [2025-01-09 17:15:43,354 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#5 [2025-01-09 17:15:43,354 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#6 [2025-01-09 17:15:43,354 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#7 [2025-01-09 17:15:43,354 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#8 [2025-01-09 17:15:43,354 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#0 [2025-01-09 17:15:43,354 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#1 [2025-01-09 17:15:43,354 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#2 [2025-01-09 17:15:43,354 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#3 [2025-01-09 17:15:43,354 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#4 [2025-01-09 17:15:43,354 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#5 [2025-01-09 17:15:43,354 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#6 [2025-01-09 17:15:43,354 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#7 [2025-01-09 17:15:43,355 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#8 [2025-01-09 17:15:43,355 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2025-01-09 17:15:43,355 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2025-01-09 17:15:43,355 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-01-09 17:15:43,355 INFO L130 BoogieDeclarations]: Found specification of procedure aws_hash_iter_is_valid [2025-01-09 17:15:43,355 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_hash_iter_is_valid [2025-01-09 17:15:43,355 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_plus [2025-01-09 17:15:43,355 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_plus [2025-01-09 17:15:43,355 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2025-01-09 17:15:43,355 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2025-01-09 17:15:43,355 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2025-01-09 17:15:43,355 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2025-01-09 17:15:43,355 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2025-01-09 17:15:43,355 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2025-01-09 17:15:43,355 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2025-01-09 17:15:43,356 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#7 [2025-01-09 17:15:43,356 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#8 [2025-01-09 17:15:43,356 INFO L130 BoogieDeclarations]: Found specification of procedure aws_hash_table_is_valid [2025-01-09 17:15:43,356 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_hash_table_is_valid [2025-01-09 17:15:43,356 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2025-01-09 17:15:43,356 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2025-01-09 17:15:43,356 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2025-01-09 17:15:43,356 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2025-01-09 17:15:43,356 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2025-01-09 17:15:43,356 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2025-01-09 17:15:43,356 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#6 [2025-01-09 17:15:43,356 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#7 [2025-01-09 17:15:43,356 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#8 [2025-01-09 17:15:43,356 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2025-01-09 17:15:43,356 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2025-01-09 17:15:43,356 INFO L130 BoogieDeclarations]: Found specification of procedure aws_add_size_checked [2025-01-09 17:15:43,356 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_add_size_checked [2025-01-09 17:15:43,357 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2025-01-09 17:15:43,357 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2025-01-09 17:15:43,357 INFO L130 BoogieDeclarations]: Found specification of procedure s_remove_entry [2025-01-09 17:15:43,357 INFO L138 BoogieDeclarations]: Found implementation of procedure s_remove_entry [2025-01-09 17:15:43,357 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-01-09 17:15:43,357 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-01-09 17:15:43,357 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2025-01-09 17:15:43,357 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2025-01-09 17:15:43,357 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2025-01-09 17:15:43,357 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2025-01-09 17:15:43,357 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2025-01-09 17:15:43,357 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2025-01-09 17:15:43,357 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#8 [2025-01-09 17:15:43,357 INFO L130 BoogieDeclarations]: Found specification of procedure aws_hash_iter_delete [2025-01-09 17:15:43,357 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_hash_iter_delete [2025-01-09 17:15:43,357 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-01-09 17:15:43,357 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-01-09 17:15:43,358 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-01-09 17:15:43,358 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2025-01-09 17:15:43,358 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2025-01-09 17:15:43,358 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2025-01-09 17:15:43,358 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2025-01-09 17:15:43,358 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2025-01-09 17:15:43,358 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2025-01-09 17:15:43,358 INFO L130 BoogieDeclarations]: Found specification of procedure aws_is_power_of_two [2025-01-09 17:15:43,358 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_is_power_of_two [2025-01-09 17:15:43,600 INFO L234 CfgBuilder]: Building ICFG [2025-01-09 17:15:43,601 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-01-09 17:15:43,646 WARN L773 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2025-01-09 17:15:43,648 WARN L773 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2025-01-09 17:15:43,731 INFO L727 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##10: assume false; [2025-01-09 17:15:43,731 INFO L727 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##11: assume !false; [2025-01-09 17:15:43,731 INFO L727 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##46: assume !false; [2025-01-09 17:15:43,732 INFO L727 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##45: assume false; [2025-01-09 17:15:49,670 INFO L? ?]: Removed 222 outVars from TransFormulas that were not future-live. [2025-01-09 17:15:49,670 INFO L283 CfgBuilder]: Performing block encoding [2025-01-09 17:15:49,686 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-01-09 17:15:49,686 INFO L312 CfgBuilder]: Removed 4 assume(true) statements. [2025-01-09 17:15:49,686 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 05:15:49 BoogieIcfgContainer [2025-01-09 17:15:49,689 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-01-09 17:15:49,692 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-01-09 17:15:49,692 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-01-09 17:15:49,695 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-01-09 17:15:49,696 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.01 05:15:40" (1/3) ... [2025-01-09 17:15:49,696 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a9a7229 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 05:15:49, skipping insertion in model container [2025-01-09 17:15:49,696 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:15:42" (2/3) ... [2025-01-09 17:15:49,696 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a9a7229 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 05:15:49, skipping insertion in model container [2025-01-09 17:15:49,696 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 05:15:49" (3/3) ... [2025-01-09 17:15:49,697 INFO L128 eAbstractionObserver]: Analyzing ICFG aws_hash_iter_delete_harness_negated.i [2025-01-09 17:15:49,710 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-01-09 17:15:49,711 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG aws_hash_iter_delete_harness_negated.i that has 28 procedures, 255 locations, 1 initial locations, 13 loop locations, and 1 error locations. [2025-01-09 17:15:49,759 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-01-09 17:15:49,766 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;@355f4106, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-01-09 17:15:49,766 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-01-09 17:15:49,769 INFO L276 IsEmpty]: Start isEmpty. Operand has 223 states, 150 states have (on average 1.28) internal successors, (192), 149 states have internal predecessors, (192), 54 states have call successors, (54), 19 states have call predecessors, (54), 19 states have return successors, (54), 54 states have call predecessors, (54), 54 states have call successors, (54) [2025-01-09 17:15:49,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2025-01-09 17:15:49,784 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 17:15:49,785 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 17:15:49,785 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 17:15:49,789 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 17:15:49,789 INFO L85 PathProgramCache]: Analyzing trace with hash -1181724307, now seen corresponding path program 1 times [2025-01-09 17:15:49,794 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 17:15:49,795 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1081842812] [2025-01-09 17:15:49,796 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 17:15:49,796 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 17:15:54,265 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 203 statements into 1 equivalence classes. [2025-01-09 17:15:54,580 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 203 of 203 statements. [2025-01-09 17:15:54,580 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 17:15:54,580 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 17:15:55,094 INFO L134 CoverageAnalysis]: Checked inductivity of 695 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 659 trivial. 0 not checked. [2025-01-09 17:15:55,095 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 17:15:55,095 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1081842812] [2025-01-09 17:15:55,096 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1081842812] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 17:15:55,096 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1173177574] [2025-01-09 17:15:55,096 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 17:15:55,097 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 17:15:55,097 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 17:15:55,101 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 17:15:55,104 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 17:15:59,712 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 203 statements into 1 equivalence classes. [2025-01-09 17:16:00,183 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 203 of 203 statements. [2025-01-09 17:16:00,183 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 17:16:00,183 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 17:16:00,201 INFO L256 TraceCheckSpWp]: Trace formula consists of 4548 conjuncts, 1 conjuncts are in the unsatisfiable core [2025-01-09 17:16:00,210 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 17:16:00,226 INFO L134 CoverageAnalysis]: Checked inductivity of 695 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 656 trivial. 0 not checked. [2025-01-09 17:16:00,226 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 17:16:00,227 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1173177574] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 17:16:00,227 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-09 17:16:00,227 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2025-01-09 17:16:00,228 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1643811979] [2025-01-09 17:16:00,228 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 17:16:00,231 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-01-09 17:16:00,231 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 17:16:00,241 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-01-09 17:16:00,242 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-01-09 17:16:00,244 INFO L87 Difference]: Start difference. First operand has 223 states, 150 states have (on average 1.28) internal successors, (192), 149 states have internal predecessors, (192), 54 states have call successors, (54), 19 states have call predecessors, (54), 19 states have return successors, (54), 54 states have call predecessors, (54), 54 states have call successors, (54) Second operand has 2 states, 2 states have (on average 39.0) internal successors, (78), 2 states have internal predecessors, (78), 2 states have call successors, (35), 2 states have call predecessors, (35), 2 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2025-01-09 17:16:00,271 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 17:16:00,272 INFO L93 Difference]: Finished difference Result 441 states and 634 transitions. [2025-01-09 17:16:00,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-09 17:16:00,273 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 39.0) internal successors, (78), 2 states have internal predecessors, (78), 2 states have call successors, (35), 2 states have call predecessors, (35), 2 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) Word has length 203 [2025-01-09 17:16:00,273 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 17:16:00,278 INFO L225 Difference]: With dead ends: 441 [2025-01-09 17:16:00,278 INFO L226 Difference]: Without dead ends: 218 [2025-01-09 17:16:00,282 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 204 GetRequests, 204 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-01-09 17:16:00,283 INFO L435 NwaCegarLoop]: 292 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, 292 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-01-09 17:16:00,283 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 292 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 17:16:00,291 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 218 states. [2025-01-09 17:16:00,308 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 218 to 218. [2025-01-09 17:16:00,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 218 states, 144 states have (on average 1.25) internal successors, (180), 145 states have internal predecessors, (180), 54 states have call successors, (54), 19 states have call predecessors, (54), 19 states have return successors, (53), 53 states have call predecessors, (53), 53 states have call successors, (53) [2025-01-09 17:16:00,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 218 states to 218 states and 287 transitions. [2025-01-09 17:16:00,322 INFO L78 Accepts]: Start accepts. Automaton has 218 states and 287 transitions. Word has length 203 [2025-01-09 17:16:00,322 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 17:16:00,323 INFO L471 AbstractCegarLoop]: Abstraction has 218 states and 287 transitions. [2025-01-09 17:16:00,323 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 39.0) internal successors, (78), 2 states have internal predecessors, (78), 2 states have call successors, (35), 2 states have call predecessors, (35), 2 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2025-01-09 17:16:00,323 INFO L276 IsEmpty]: Start isEmpty. Operand 218 states and 287 transitions. [2025-01-09 17:16:00,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2025-01-09 17:16:00,325 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 17:16:00,326 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 17:16:00,340 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 17:16:00,527 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 17:16:00,527 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 17:16:00,528 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 17:16:00,528 INFO L85 PathProgramCache]: Analyzing trace with hash 1464640679, now seen corresponding path program 1 times [2025-01-09 17:16:00,528 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 17:16:00,528 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [33968952] [2025-01-09 17:16:00,529 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 17:16:00,529 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 17:16:04,131 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 203 statements into 1 equivalence classes. [2025-01-09 17:16:04,221 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 203 of 203 statements. [2025-01-09 17:16:04,221 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 17:16:04,221 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 17:16:05,224 INFO L134 CoverageAnalysis]: Checked inductivity of 695 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 695 trivial. 0 not checked. [2025-01-09 17:16:05,225 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 17:16:05,225 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [33968952] [2025-01-09 17:16:05,225 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [33968952] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 17:16:05,225 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 17:16:05,225 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-01-09 17:16:05,225 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1533594166] [2025-01-09 17:16:05,225 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 17:16:05,226 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-01-09 17:16:05,226 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 17:16:05,229 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-01-09 17:16:05,229 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-01-09 17:16:05,229 INFO L87 Difference]: Start difference. First operand 218 states and 287 transitions. Second operand has 5 states, 5 states have (on average 14.8) internal successors, (74), 5 states have internal predecessors, (74), 2 states have call successors, (35), 2 states have call predecessors, (35), 3 states have return successors, (32), 3 states have call predecessors, (32), 2 states have call successors, (32) [2025-01-09 17:16:05,393 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 17:16:05,394 INFO L93 Difference]: Finished difference Result 399 states and 529 transitions. [2025-01-09 17:16:05,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-09 17:16:05,394 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.8) internal successors, (74), 5 states have internal predecessors, (74), 2 states have call successors, (35), 2 states have call predecessors, (35), 3 states have return successors, (32), 3 states have call predecessors, (32), 2 states have call successors, (32) Word has length 203 [2025-01-09 17:16:05,395 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 17:16:05,396 INFO L225 Difference]: With dead ends: 399 [2025-01-09 17:16:05,396 INFO L226 Difference]: Without dead ends: 223 [2025-01-09 17:16:05,397 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-01-09 17:16:05,398 INFO L435 NwaCegarLoop]: 284 mSDtfsCounter, 0 mSDsluCounter, 848 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1132 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-01-09 17:16:05,398 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1132 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-01-09 17:16:05,398 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 223 states. [2025-01-09 17:16:05,408 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 223 to 223. [2025-01-09 17:16:05,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 223 states, 148 states have (on average 1.2432432432432432) internal successors, (184), 149 states have internal predecessors, (184), 54 states have call successors, (54), 19 states have call predecessors, (54), 20 states have return successors, (54), 54 states have call predecessors, (54), 53 states have call successors, (54) [2025-01-09 17:16:05,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 223 states to 223 states and 292 transitions. [2025-01-09 17:16:05,417 INFO L78 Accepts]: Start accepts. Automaton has 223 states and 292 transitions. Word has length 203 [2025-01-09 17:16:05,418 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 17:16:05,418 INFO L471 AbstractCegarLoop]: Abstraction has 223 states and 292 transitions. [2025-01-09 17:16:05,418 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.8) internal successors, (74), 5 states have internal predecessors, (74), 2 states have call successors, (35), 2 states have call predecessors, (35), 3 states have return successors, (32), 3 states have call predecessors, (32), 2 states have call successors, (32) [2025-01-09 17:16:05,418 INFO L276 IsEmpty]: Start isEmpty. Operand 223 states and 292 transitions. [2025-01-09 17:16:05,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 210 [2025-01-09 17:16:05,420 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 17:16:05,420 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:16:05,420 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-01-09 17:16:05,420 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 17:16:05,421 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 17:16:05,421 INFO L85 PathProgramCache]: Analyzing trace with hash 283524837, now seen corresponding path program 1 times [2025-01-09 17:16:05,421 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 17:16:05,421 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [753880390] [2025-01-09 17:16:05,421 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 17:16:05,421 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 17:16:09,226 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 209 statements into 1 equivalence classes. [2025-01-09 17:16:09,318 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 209 of 209 statements. [2025-01-09 17:16:09,318 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 17:16:09,318 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 17:16:12,971 INFO L134 CoverageAnalysis]: Checked inductivity of 695 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 695 trivial. 0 not checked. [2025-01-09 17:16:12,971 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 17:16:12,971 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [753880390] [2025-01-09 17:16:12,972 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [753880390] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 17:16:12,972 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 17:16:12,972 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2025-01-09 17:16:12,972 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2120213277] [2025-01-09 17:16:12,975 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 17:16:12,976 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-01-09 17:16:12,977 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 17:16:12,981 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-01-09 17:16:12,982 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2025-01-09 17:16:12,983 INFO L87 Difference]: Start difference. First operand 223 states and 292 transitions. Second operand has 10 states, 10 states have (on average 7.8) internal successors, (78), 9 states have internal predecessors, (78), 4 states have call successors, (36), 2 states have call predecessors, (36), 3 states have return successors, (33), 4 states have call predecessors, (33), 4 states have call successors, (33) [2025-01-09 17:16:15,008 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 17:16:15,008 INFO L93 Difference]: Finished difference Result 393 states and 522 transitions. [2025-01-09 17:16:15,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-01-09 17:16:15,009 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 7.8) internal successors, (78), 9 states have internal predecessors, (78), 4 states have call successors, (36), 2 states have call predecessors, (36), 3 states have return successors, (33), 4 states have call predecessors, (33), 4 states have call successors, (33) Word has length 209 [2025-01-09 17:16:15,010 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 17:16:15,013 INFO L225 Difference]: With dead ends: 393 [2025-01-09 17:16:15,013 INFO L226 Difference]: Without dead ends: 231 [2025-01-09 17:16:15,014 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2025-01-09 17:16:15,014 INFO L435 NwaCegarLoop]: 274 mSDtfsCounter, 22 mSDsluCounter, 1542 mSDsCounter, 0 mSdLazyCounter, 162 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 1816 SdHoareTripleChecker+Invalid, 162 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 162 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2025-01-09 17:16:15,015 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 1816 Invalid, 162 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 162 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2025-01-09 17:16:15,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 231 states. [2025-01-09 17:16:15,025 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 231 to 228. [2025-01-09 17:16:15,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 228 states, 152 states have (on average 1.243421052631579) internal successors, (189), 154 states have internal predecessors, (189), 54 states have call successors, (54), 19 states have call predecessors, (54), 21 states have return successors, (55), 54 states have call predecessors, (55), 53 states have call successors, (55) [2025-01-09 17:16:15,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 228 states to 228 states and 298 transitions. [2025-01-09 17:16:15,027 INFO L78 Accepts]: Start accepts. Automaton has 228 states and 298 transitions. Word has length 209 [2025-01-09 17:16:15,028 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 17:16:15,028 INFO L471 AbstractCegarLoop]: Abstraction has 228 states and 298 transitions. [2025-01-09 17:16:15,028 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.8) internal successors, (78), 9 states have internal predecessors, (78), 4 states have call successors, (36), 2 states have call predecessors, (36), 3 states have return successors, (33), 4 states have call predecessors, (33), 4 states have call successors, (33) [2025-01-09 17:16:15,028 INFO L276 IsEmpty]: Start isEmpty. Operand 228 states and 298 transitions. [2025-01-09 17:16:15,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 210 [2025-01-09 17:16:15,030 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 17:16:15,030 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:16:15,030 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-01-09 17:16:15,030 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 17:16:15,030 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 17:16:15,031 INFO L85 PathProgramCache]: Analyzing trace with hash -256904669, now seen corresponding path program 1 times [2025-01-09 17:16:15,031 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 17:16:15,031 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1296149272] [2025-01-09 17:16:15,031 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 17:16:15,031 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 17:16:18,963 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 209 statements into 1 equivalence classes. [2025-01-09 17:16:19,053 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 209 of 209 statements. [2025-01-09 17:16:19,053 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 17:16:19,053 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 17:16:19,956 INFO L134 CoverageAnalysis]: Checked inductivity of 695 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 695 trivial. 0 not checked. [2025-01-09 17:16:19,957 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 17:16:19,957 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1296149272] [2025-01-09 17:16:19,957 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1296149272] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 17:16:19,957 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 17:16:19,957 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-01-09 17:16:19,957 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1856333231] [2025-01-09 17:16:19,958 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 17:16:19,958 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-01-09 17:16:19,958 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 17:16:19,958 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-01-09 17:16:19,959 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-01-09 17:16:19,959 INFO L87 Difference]: Start difference. First operand 228 states and 298 transitions. Second operand has 5 states, 5 states have (on average 15.6) internal successors, (78), 5 states have internal predecessors, (78), 3 states have call successors, (36), 2 states have call predecessors, (36), 2 states have return successors, (33), 3 states have call predecessors, (33), 3 states have call successors, (33) [2025-01-09 17:16:20,235 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 17:16:20,236 INFO L93 Difference]: Finished difference Result 400 states and 530 transitions. [2025-01-09 17:16:20,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-09 17:16:20,237 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 5 states have internal predecessors, (78), 3 states have call successors, (36), 2 states have call predecessors, (36), 2 states have return successors, (33), 3 states have call predecessors, (33), 3 states have call successors, (33) Word has length 209 [2025-01-09 17:16:20,237 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 17:16:20,239 INFO L225 Difference]: With dead ends: 400 [2025-01-09 17:16:20,239 INFO L226 Difference]: Without dead ends: 233 [2025-01-09 17:16:20,240 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-01-09 17:16:20,241 INFO L435 NwaCegarLoop]: 285 mSDtfsCounter, 21 mSDsluCounter, 520 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 805 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-01-09 17:16:20,242 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 805 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-01-09 17:16:20,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 233 states. [2025-01-09 17:16:20,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 233 to 230. [2025-01-09 17:16:20,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 230 states, 153 states have (on average 1.2418300653594772) internal successors, (190), 155 states have internal predecessors, (190), 55 states have call successors, (55), 19 states have call predecessors, (55), 21 states have return successors, (56), 55 states have call predecessors, (56), 54 states have call successors, (56) [2025-01-09 17:16:20,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 230 states to 230 states and 301 transitions. [2025-01-09 17:16:20,264 INFO L78 Accepts]: Start accepts. Automaton has 230 states and 301 transitions. Word has length 209 [2025-01-09 17:16:20,265 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 17:16:20,265 INFO L471 AbstractCegarLoop]: Abstraction has 230 states and 301 transitions. [2025-01-09 17:16:20,265 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 5 states have internal predecessors, (78), 3 states have call successors, (36), 2 states have call predecessors, (36), 2 states have return successors, (33), 3 states have call predecessors, (33), 3 states have call successors, (33) [2025-01-09 17:16:20,265 INFO L276 IsEmpty]: Start isEmpty. Operand 230 states and 301 transitions. [2025-01-09 17:16:20,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 216 [2025-01-09 17:16:20,268 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 17:16:20,268 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:16:20,268 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-01-09 17:16:20,268 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 17:16:20,269 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 17:16:20,269 INFO L85 PathProgramCache]: Analyzing trace with hash -236585722, now seen corresponding path program 1 times [2025-01-09 17:16:20,269 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 17:16:20,270 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [135313747] [2025-01-09 17:16:20,270 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 17:16:20,270 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 17:16:23,776 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 215 statements into 1 equivalence classes. [2025-01-09 17:16:23,869 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 215 of 215 statements. [2025-01-09 17:16:23,869 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 17:16:23,869 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 17:16:25,976 INFO L134 CoverageAnalysis]: Checked inductivity of 703 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 697 trivial. 0 not checked. [2025-01-09 17:16:25,977 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 17:16:25,977 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [135313747] [2025-01-09 17:16:25,977 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [135313747] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 17:16:25,977 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1414741978] [2025-01-09 17:16:25,978 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 17:16:25,978 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 17:16:25,978 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 17:16:25,980 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 17:16:25,981 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 17:16:30,298 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 215 statements into 1 equivalence classes. [2025-01-09 17:16:30,777 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 215 of 215 statements. [2025-01-09 17:16:30,777 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 17:16:30,777 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 17:16:30,802 INFO L256 TraceCheckSpWp]: Trace formula consists of 4576 conjuncts, 12 conjuncts are in the unsatisfiable core [2025-01-09 17:16:30,809 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 17:16:32,099 INFO L134 CoverageAnalysis]: Checked inductivity of 703 backedges. 15 proven. 39 refuted. 0 times theorem prover too weak. 649 trivial. 0 not checked. [2025-01-09 17:16:32,099 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-09 17:16:34,442 INFO L134 CoverageAnalysis]: Checked inductivity of 703 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 703 trivial. 0 not checked. [2025-01-09 17:16:34,442 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1414741978] provided 1 perfect and 1 imperfect interpolant sequences [2025-01-09 17:16:34,442 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2025-01-09 17:16:34,442 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [7, 8] total 15 [2025-01-09 17:16:34,442 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1063324377] [2025-01-09 17:16:34,442 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 17:16:34,444 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-01-09 17:16:34,444 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 17:16:34,445 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-01-09 17:16:34,445 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=181, Unknown=0, NotChecked=0, Total=210 [2025-01-09 17:16:34,446 INFO L87 Difference]: Start difference. First operand 230 states and 301 transitions. Second operand has 5 states, 4 states have (on average 19.75) internal successors, (79), 4 states have internal predecessors, (79), 2 states have call successors, (37), 2 states have call predecessors, (37), 1 states have return successors, (34), 1 states have call predecessors, (34), 1 states have call successors, (34) [2025-01-09 17:16:34,885 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 17:16:34,885 INFO L93 Difference]: Finished difference Result 238 states and 309 transitions. [2025-01-09 17:16:34,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-09 17:16:34,886 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 19.75) internal successors, (79), 4 states have internal predecessors, (79), 2 states have call successors, (37), 2 states have call predecessors, (37), 1 states have return successors, (34), 1 states have call predecessors, (34), 1 states have call successors, (34) Word has length 215 [2025-01-09 17:16:34,887 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 17:16:34,891 INFO L225 Difference]: With dead ends: 238 [2025-01-09 17:16:34,891 INFO L226 Difference]: Without dead ends: 236 [2025-01-09 17:16:34,892 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 436 GetRequests, 422 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=33, Invalid=207, Unknown=0, NotChecked=0, Total=240 [2025-01-09 17:16:34,894 INFO L435 NwaCegarLoop]: 284 mSDtfsCounter, 3 mSDsluCounter, 840 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 1124 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-01-09 17:16:34,894 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 1124 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-01-09 17:16:34,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 236 states. [2025-01-09 17:16:34,911 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 236 to 235. [2025-01-09 17:16:34,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 235 states, 156 states have (on average 1.2371794871794872) internal successors, (193), 159 states have internal predecessors, (193), 56 states have call successors, (56), 20 states have call predecessors, (56), 22 states have return successors, (57), 55 states have call predecessors, (57), 55 states have call successors, (57) [2025-01-09 17:16:34,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 235 states to 235 states and 306 transitions. [2025-01-09 17:16:34,912 INFO L78 Accepts]: Start accepts. Automaton has 235 states and 306 transitions. Word has length 215 [2025-01-09 17:16:34,913 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 17:16:34,913 INFO L471 AbstractCegarLoop]: Abstraction has 235 states and 306 transitions. [2025-01-09 17:16:34,913 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 19.75) internal successors, (79), 4 states have internal predecessors, (79), 2 states have call successors, (37), 2 states have call predecessors, (37), 1 states have return successors, (34), 1 states have call predecessors, (34), 1 states have call successors, (34) [2025-01-09 17:16:34,913 INFO L276 IsEmpty]: Start isEmpty. Operand 235 states and 306 transitions. [2025-01-09 17:16:34,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 222 [2025-01-09 17:16:34,917 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 17:16:34,917 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 4, 4, 4, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:16:34,934 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2025-01-09 17:16:35,118 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 17:16:35,118 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 17:16:35,119 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 17:16:35,119 INFO L85 PathProgramCache]: Analyzing trace with hash -1608002849, now seen corresponding path program 1 times [2025-01-09 17:16:35,119 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 17:16:35,119 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [701483543] [2025-01-09 17:16:35,119 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 17:16:35,119 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 17:16:38,910 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 221 statements into 1 equivalence classes. [2025-01-09 17:16:39,106 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 221 of 221 statements. [2025-01-09 17:16:39,106 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 17:16:39,106 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 17:16:41,363 INFO L134 CoverageAnalysis]: Checked inductivity of 715 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 706 trivial. 0 not checked. [2025-01-09 17:16:41,363 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 17:16:41,363 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [701483543] [2025-01-09 17:16:41,364 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [701483543] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 17:16:41,364 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2117006190] [2025-01-09 17:16:41,364 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 17:16:41,364 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 17:16:41,364 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 17:16:41,366 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 17:16:41,367 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 17:16:46,005 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 221 statements into 1 equivalence classes. [2025-01-09 17:16:46,463 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 221 of 221 statements. [2025-01-09 17:16:46,463 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 17:16:46,463 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 17:16:46,487 INFO L256 TraceCheckSpWp]: Trace formula consists of 4596 conjuncts, 16 conjuncts are in the unsatisfiable core [2025-01-09 17:16:46,493 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 17:16:48,226 INFO L134 CoverageAnalysis]: Checked inductivity of 715 backedges. 21 proven. 39 refuted. 0 times theorem prover too weak. 655 trivial. 0 not checked. [2025-01-09 17:16:48,226 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-09 17:16:51,336 INFO L134 CoverageAnalysis]: Checked inductivity of 715 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 709 trivial. 0 not checked. [2025-01-09 17:16:51,337 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2117006190] provided 1 perfect and 1 imperfect interpolant sequences [2025-01-09 17:16:51,337 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2025-01-09 17:16:51,337 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [7, 10] total 19 [2025-01-09 17:16:51,337 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [27506131] [2025-01-09 17:16:51,337 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 17:16:51,338 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-01-09 17:16:51,338 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 17:16:51,338 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-01-09 17:16:51,339 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=303, Unknown=0, NotChecked=0, Total=342 [2025-01-09 17:16:51,339 INFO L87 Difference]: Start difference. First operand 235 states and 306 transitions. Second operand has 7 states, 6 states have (on average 13.666666666666666) internal successors, (82), 5 states have internal predecessors, (82), 2 states have call successors, (38), 2 states have call predecessors, (38), 2 states have return successors, (35), 2 states have call predecessors, (35), 1 states have call successors, (35) [2025-01-09 17:16:51,963 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 17:16:51,963 INFO L93 Difference]: Finished difference Result 246 states and 322 transitions. [2025-01-09 17:16:51,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-01-09 17:16:51,964 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 13.666666666666666) internal successors, (82), 5 states have internal predecessors, (82), 2 states have call successors, (38), 2 states have call predecessors, (38), 2 states have return successors, (35), 2 states have call predecessors, (35), 1 states have call successors, (35) Word has length 221 [2025-01-09 17:16:51,964 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 17:16:51,966 INFO L225 Difference]: With dead ends: 246 [2025-01-09 17:16:51,966 INFO L226 Difference]: Without dead ends: 244 [2025-01-09 17:16:51,967 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 448 GetRequests, 430 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=43, Invalid=337, Unknown=0, NotChecked=0, Total=380 [2025-01-09 17:16:51,967 INFO L435 NwaCegarLoop]: 283 mSDtfsCounter, 3 mSDsluCounter, 1399 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 1682 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2025-01-09 17:16:51,967 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 1682 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2025-01-09 17:16:51,968 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 244 states. [2025-01-09 17:16:51,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 244 to 238. [2025-01-09 17:16:51,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 238 states, 158 states have (on average 1.2341772151898733) internal successors, (195), 161 states have internal predecessors, (195), 56 states have call successors, (56), 20 states have call predecessors, (56), 23 states have return successors, (63), 56 states have call predecessors, (63), 55 states have call successors, (63) [2025-01-09 17:16:51,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 238 states to 238 states and 314 transitions. [2025-01-09 17:16:51,976 INFO L78 Accepts]: Start accepts. Automaton has 238 states and 314 transitions. Word has length 221 [2025-01-09 17:16:51,976 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 17:16:51,976 INFO L471 AbstractCegarLoop]: Abstraction has 238 states and 314 transitions. [2025-01-09 17:16:51,977 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 13.666666666666666) internal successors, (82), 5 states have internal predecessors, (82), 2 states have call successors, (38), 2 states have call predecessors, (38), 2 states have return successors, (35), 2 states have call predecessors, (35), 1 states have call successors, (35) [2025-01-09 17:16:51,977 INFO L276 IsEmpty]: Start isEmpty. Operand 238 states and 314 transitions. [2025-01-09 17:16:51,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 229 [2025-01-09 17:16:51,980 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 17:16:51,980 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:16:52,001 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 17:16:52,181 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 17:16:52,181 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 17:16:52,182 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 17:16:52,182 INFO L85 PathProgramCache]: Analyzing trace with hash 2013517693, now seen corresponding path program 1 times [2025-01-09 17:16:52,182 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 17:16:52,182 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1928230054] [2025-01-09 17:16:52,182 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 17:16:52,182 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 17:16:56,002 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 228 statements into 1 equivalence classes. [2025-01-09 17:16:56,057 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 228 of 228 statements. [2025-01-09 17:16:56,057 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 17:16:56,057 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 17:16:57,939 INFO L134 CoverageAnalysis]: Checked inductivity of 720 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 711 trivial. 0 not checked. [2025-01-09 17:16:57,939 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 17:16:57,939 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1928230054] [2025-01-09 17:16:57,939 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1928230054] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 17:16:57,939 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1200094213] [2025-01-09 17:16:57,940 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 17:16:57,940 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 17:16:57,940 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 17:16:57,942 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 17:16:57,943 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 17:17:02,642 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 228 statements into 1 equivalence classes. [2025-01-09 17:17:03,080 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 228 of 228 statements. [2025-01-09 17:17:03,080 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 17:17:03,080 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 17:17:03,100 INFO L256 TraceCheckSpWp]: Trace formula consists of 4628 conjuncts, 29 conjuncts are in the unsatisfiable core [2025-01-09 17:17:03,105 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 17:17:04,410 INFO L134 CoverageAnalysis]: Checked inductivity of 720 backedges. 9 proven. 5 refuted. 0 times theorem prover too weak. 706 trivial. 0 not checked. [2025-01-09 17:17:04,410 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-09 17:17:07,886 INFO L134 CoverageAnalysis]: Checked inductivity of 720 backedges. 9 proven. 6 refuted. 0 times theorem prover too weak. 705 trivial. 0 not checked. [2025-01-09 17:17:07,886 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1200094213] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-09 17:17:07,886 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-09 17:17:07,886 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 8] total 12 [2025-01-09 17:17:07,886 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1318850659] [2025-01-09 17:17:07,886 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-09 17:17:07,888 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2025-01-09 17:17:07,888 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 17:17:07,889 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2025-01-09 17:17:07,890 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2025-01-09 17:17:07,891 INFO L87 Difference]: Start difference. First operand 238 states and 314 transitions. Second operand has 12 states, 11 states have (on average 11.363636363636363) internal successors, (125), 12 states have internal predecessors, (125), 6 states have call successors, (65), 2 states have call predecessors, (65), 4 states have return successors, (61), 5 states have call predecessors, (61), 6 states have call successors, (61)