./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/aws-c-common/aws_linked_list_swap_contents_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 551b0097 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/aws-c-common/aws_linked_list_swap_contents_harness.i -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 021ac35396c67703f42c73aa20a3d08d3b8ea81bc00c2712290e90099f1c0b85 --- Real Ultimate output --- This is Ultimate 0.3.0-?-551b009-m [2025-01-09 17:23:27,235 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-01-09 17:23:27,298 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2025-01-09 17:23:27,302 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-01-09 17:23:27,305 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-01-09 17:23:27,328 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-01-09 17:23:27,329 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-01-09 17:23:27,329 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-01-09 17:23:27,330 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-01-09 17:23:27,330 INFO L153 SettingsManager]: * Use memory slicer=true [2025-01-09 17:23:27,331 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-01-09 17:23:27,331 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-01-09 17:23:27,331 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-01-09 17:23:27,331 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-01-09 17:23:27,331 INFO L153 SettingsManager]: * Use SBE=true [2025-01-09 17:23:27,332 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-01-09 17:23:27,332 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-01-09 17:23:27,332 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-01-09 17:23:27,332 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-01-09 17:23:27,332 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-01-09 17:23:27,332 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-01-09 17:23:27,332 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-01-09 17:23:27,332 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-01-09 17:23:27,332 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-01-09 17:23:27,333 INFO L153 SettingsManager]: * Use constant arrays=true [2025-01-09 17:23:27,333 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-01-09 17:23:27,333 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 17:23:27,333 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-09 17:23:27,333 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 17:23:27,333 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 17:23:27,333 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-01-09 17:23:27,333 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 17:23:27,334 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-09 17:23:27,334 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 17:23:27,334 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 17:23:27,334 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-01-09 17:23:27,334 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-01-09 17:23:27,334 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-01-09 17:23:27,334 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-01-09 17:23:27,334 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-01-09 17:23:27,334 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-01-09 17:23:27,334 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-01-09 17:23:27,334 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-01-09 17:23:27,335 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-01-09 17:23:27,335 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-01-09 17:23:27,335 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 -> 021ac35396c67703f42c73aa20a3d08d3b8ea81bc00c2712290e90099f1c0b85 [2025-01-09 17:23:27,568 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-01-09 17:23:27,577 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-01-09 17:23:27,578 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-01-09 17:23:27,580 INFO L270 PluginConnector]: Initializing CDTParser... [2025-01-09 17:23:27,580 INFO L274 PluginConnector]: CDTParser initialized [2025-01-09 17:23:27,582 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_linked_list_swap_contents_harness.i [2025-01-09 17:23:28,745 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/9cfbbdcc2/3d6f83e0edd442bcbd860fac48fe0497/FLAG69711d6c6 [2025-01-09 17:23:29,096 INFO L384 CDTParser]: Found 1 translation units. [2025-01-09 17:23:29,096 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_linked_list_swap_contents_harness.i [2025-01-09 17:23:29,120 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/9cfbbdcc2/3d6f83e0edd442bcbd860fac48fe0497/FLAG69711d6c6 [2025-01-09 17:23:29,134 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/9cfbbdcc2/3d6f83e0edd442bcbd860fac48fe0497 [2025-01-09 17:23:29,135 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-01-09 17:23:29,136 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-01-09 17:23:29,137 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-01-09 17:23:29,137 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-01-09 17:23:29,140 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-01-09 17:23:29,140 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 05:23:29" (1/1) ... [2025-01-09 17:23:29,141 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4a33e1a1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:23:29, skipping insertion in model container [2025-01-09 17:23:29,141 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 05:23:29" (1/1) ... [2025-01-09 17:23:29,188 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-01-09 17:23:29,367 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_linked_list_swap_contents_harness.i[4503,4516] [2025-01-09 17:23:29,373 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_linked_list_swap_contents_harness.i[4563,4576] [2025-01-09 17:23:29,803 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:23:29,807 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:23:29,808 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:23:29,808 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:23:29,809 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:23:29,824 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:23:29,828 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:23:29,831 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:23:29,831 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:23:29,832 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:23:29,833 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:23:29,834 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:23:29,834 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:23:30,170 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_linked_list_swap_contents_harness.i[151109,151122] [2025-01-09 17:23:30,171 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 17:23:30,188 INFO L200 MainTranslator]: Completed pre-run [2025-01-09 17:23:30,197 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_linked_list_swap_contents_harness.i[4503,4516] [2025-01-09 17:23:30,197 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_linked_list_swap_contents_harness.i[4563,4576] [2025-01-09 17:23:30,228 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:23:30,229 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:23:30,230 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:23:30,230 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:23:30,231 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:23:30,240 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:23:30,241 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:23:30,242 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:23:30,243 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:23:30,243 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:23:30,244 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:23:30,244 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:23:30,244 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:23:30,311 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_linked_list_swap_contents_harness.i[151109,151122] [2025-01-09 17:23:30,312 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 17:23:30,466 INFO L204 MainTranslator]: Completed translation [2025-01-09 17:23:30,467 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:23:30 WrapperNode [2025-01-09 17:23:30,467 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-01-09 17:23:30,468 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-01-09 17:23:30,468 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-01-09 17:23:30,468 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-01-09 17:23:30,472 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:23:30" (1/1) ... [2025-01-09 17:23:30,507 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:23:30" (1/1) ... [2025-01-09 17:23:30,541 INFO L138 Inliner]: procedures = 668, calls = 1078, calls flagged for inlining = 52, calls inlined = 5, statements flattened = 210 [2025-01-09 17:23:30,542 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-01-09 17:23:30,542 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-01-09 17:23:30,542 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-01-09 17:23:30,542 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-01-09 17:23:30,551 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:23:30" (1/1) ... [2025-01-09 17:23:30,552 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:23:30" (1/1) ... [2025-01-09 17:23:30,556 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:23:30" (1/1) ... [2025-01-09 17:23:30,579 INFO L175 MemorySlicer]: Split 68 memory accesses to 5 slices as follows [2, 47, 5, 7, 7]. 69 percent of accesses are in the largest equivalence class. The 15 initializations are split as follows [2, 0, 5, 4, 4]. The 18 writes are split as follows [0, 18, 0, 0, 0]. [2025-01-09 17:23:30,580 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:23:30" (1/1) ... [2025-01-09 17:23:30,580 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:23:30" (1/1) ... [2025-01-09 17:23:30,595 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:23:30" (1/1) ... [2025-01-09 17:23:30,597 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:23:30" (1/1) ... [2025-01-09 17:23:30,600 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:23:30" (1/1) ... [2025-01-09 17:23:30,602 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:23:30" (1/1) ... [2025-01-09 17:23:30,604 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:23:30" (1/1) ... [2025-01-09 17:23:30,610 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-01-09 17:23:30,611 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-01-09 17:23:30,612 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-01-09 17:23:30,612 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-01-09 17:23:30,613 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:23:30" (1/1) ... [2025-01-09 17:23:30,622 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 17:23:30,631 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 17:23:30,643 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 17:23:30,649 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 17:23:30,663 INFO L130 BoogieDeclarations]: Found specification of procedure aws_linked_list_init [2025-01-09 17:23:30,664 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_linked_list_init [2025-01-09 17:23:30,664 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-01-09 17:23:30,664 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2025-01-09 17:23:30,664 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2025-01-09 17:23:30,664 INFO L130 BoogieDeclarations]: Found specification of procedure aws_linked_list_node_next_is_valid [2025-01-09 17:23:30,664 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_linked_list_node_next_is_valid [2025-01-09 17:23:30,664 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_linked_list_is_allocated [2025-01-09 17:23:30,664 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_linked_list_is_allocated [2025-01-09 17:23:30,664 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-01-09 17:23:30,664 INFO L130 BoogieDeclarations]: Found specification of procedure aws_linked_list_is_valid [2025-01-09 17:23:30,664 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_linked_list_is_valid [2025-01-09 17:23:30,664 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-01-09 17:23:30,664 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2025-01-09 17:23:30,664 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2025-01-09 17:23:30,664 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2025-01-09 17:23:30,664 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2025-01-09 17:23:30,665 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2025-01-09 17:23:30,665 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-01-09 17:23:30,665 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-01-09 17:23:30,665 INFO L130 BoogieDeclarations]: Found specification of procedure aws_linked_list_empty [2025-01-09 17:23:30,665 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_linked_list_empty [2025-01-09 17:23:30,665 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2025-01-09 17:23:30,665 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2025-01-09 17:23:30,665 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-01-09 17:23:30,665 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2025-01-09 17:23:30,665 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2025-01-09 17:23:30,665 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2025-01-09 17:23:30,665 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2025-01-09 17:23:30,665 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2025-01-09 17:23:30,665 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2025-01-09 17:23:30,665 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2025-01-09 17:23:30,665 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2025-01-09 17:23:30,665 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2025-01-09 17:23:30,665 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2025-01-09 17:23:30,665 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2025-01-09 17:23:30,665 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2025-01-09 17:23:30,665 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-01-09 17:23:30,665 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-01-09 17:23:30,665 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-01-09 17:23:30,665 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2025-01-09 17:23:30,665 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2025-01-09 17:23:30,843 INFO L234 CfgBuilder]: Building ICFG [2025-01-09 17:23:30,844 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-01-09 17:23:31,154 INFO L? ?]: Removed 62 outVars from TransFormulas that were not future-live. [2025-01-09 17:23:31,154 INFO L283 CfgBuilder]: Performing block encoding [2025-01-09 17:23:31,165 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-01-09 17:23:31,166 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2025-01-09 17:23:31,166 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 05:23:31 BoogieIcfgContainer [2025-01-09 17:23:31,166 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-01-09 17:23:31,167 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-01-09 17:23:31,167 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-01-09 17:23:31,171 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-01-09 17:23:31,171 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.01 05:23:29" (1/3) ... [2025-01-09 17:23:31,171 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@196269cf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 05:23:31, skipping insertion in model container [2025-01-09 17:23:31,171 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:23:30" (2/3) ... [2025-01-09 17:23:31,171 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@196269cf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 05:23:31, skipping insertion in model container [2025-01-09 17:23:31,172 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 05:23:31" (3/3) ... [2025-01-09 17:23:31,172 INFO L128 eAbstractionObserver]: Analyzing ICFG aws_linked_list_swap_contents_harness.i [2025-01-09 17:23:31,194 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-01-09 17:23:31,196 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG aws_linked_list_swap_contents_harness.i that has 9 procedures, 112 locations, 1 initial locations, 2 loop locations, and 1 error locations. [2025-01-09 17:23:31,243 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-01-09 17:23:31,250 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;@1ac2b814, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-01-09 17:23:31,251 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-01-09 17:23:31,253 INFO L276 IsEmpty]: Start isEmpty. Operand has 112 states, 68 states have (on average 1.2794117647058822) internal successors, (87), 71 states have internal predecessors, (87), 34 states have call successors, (34), 8 states have call predecessors, (34), 8 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2025-01-09 17:23:31,263 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2025-01-09 17:23:31,263 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 17:23:31,264 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 17:23:31,264 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 17:23:31,267 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 17:23:31,268 INFO L85 PathProgramCache]: Analyzing trace with hash -129103497, now seen corresponding path program 1 times [2025-01-09 17:23:31,273 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 17:23:31,273 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [514175916] [2025-01-09 17:23:31,273 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 17:23:31,274 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 17:23:31,414 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 99 statements into 1 equivalence classes. [2025-01-09 17:23:31,437 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 99 of 99 statements. [2025-01-09 17:23:31,442 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 17:23:31,442 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 17:23:31,637 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2025-01-09 17:23:31,637 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 17:23:31,637 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [514175916] [2025-01-09 17:23:31,638 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [514175916] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 17:23:31,638 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1136832645] [2025-01-09 17:23:31,638 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 17:23:31,639 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 17:23:31,639 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 17:23:31,641 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 17:23:31,644 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 17:23:31,802 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 99 statements into 1 equivalence classes. [2025-01-09 17:23:31,895 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 99 of 99 statements. [2025-01-09 17:23:31,895 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 17:23:31,895 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 17:23:31,899 INFO L256 TraceCheckSpWp]: Trace formula consists of 684 conjuncts, 1 conjuncts are in the unsatisfiable core [2025-01-09 17:23:31,907 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 17:23:31,918 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2025-01-09 17:23:31,921 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 17:23:31,921 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1136832645] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 17:23:31,921 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-09 17:23:31,922 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2025-01-09 17:23:31,923 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1714779218] [2025-01-09 17:23:31,923 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 17:23:31,927 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-01-09 17:23:31,927 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 17:23:31,942 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-01-09 17:23:31,943 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-01-09 17:23:31,944 INFO L87 Difference]: Start difference. First operand has 112 states, 68 states have (on average 1.2794117647058822) internal successors, (87), 71 states have internal predecessors, (87), 34 states have call successors, (34), 8 states have call predecessors, (34), 8 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) Second operand has 2 states, 2 states have (on average 19.5) internal successors, (39), 2 states have internal predecessors, (39), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2025-01-09 17:23:31,974 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 17:23:31,975 INFO L93 Difference]: Finished difference Result 221 states and 331 transitions. [2025-01-09 17:23:31,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-09 17:23:31,976 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 19.5) internal successors, (39), 2 states have internal predecessors, (39), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 99 [2025-01-09 17:23:31,977 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 17:23:31,981 INFO L225 Difference]: With dead ends: 221 [2025-01-09 17:23:31,982 INFO L226 Difference]: Without dead ends: 105 [2025-01-09 17:23:31,987 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 100 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 17:23:31,988 INFO L435 NwaCegarLoop]: 153 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, 153 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 17:23:31,989 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 153 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 17:23:31,999 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105 states. [2025-01-09 17:23:32,019 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105 to 105. [2025-01-09 17:23:32,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 105 states, 62 states have (on average 1.2741935483870968) internal successors, (79), 66 states have internal predecessors, (79), 34 states have call successors, (34), 8 states have call predecessors, (34), 8 states have return successors, (32), 32 states have call predecessors, (32), 32 states have call successors, (32) [2025-01-09 17:23:32,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 145 transitions. [2025-01-09 17:23:32,026 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 145 transitions. Word has length 99 [2025-01-09 17:23:32,026 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 17:23:32,026 INFO L471 AbstractCegarLoop]: Abstraction has 105 states and 145 transitions. [2025-01-09 17:23:32,027 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 19.5) internal successors, (39), 2 states have internal predecessors, (39), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2025-01-09 17:23:32,027 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 145 transitions. [2025-01-09 17:23:32,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2025-01-09 17:23:32,029 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 17:23:32,029 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 17:23:32,037 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2025-01-09 17:23:32,233 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 17:23:32,233 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 17:23:32,234 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 17:23:32,234 INFO L85 PathProgramCache]: Analyzing trace with hash -1387230547, now seen corresponding path program 1 times [2025-01-09 17:23:32,234 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 17:23:32,234 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1872791756] [2025-01-09 17:23:32,234 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 17:23:32,234 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 17:23:32,303 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 99 statements into 1 equivalence classes. [2025-01-09 17:23:32,413 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 99 of 99 statements. [2025-01-09 17:23:32,413 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 17:23:32,413 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 17:23:34,362 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 1 proven. 7 refuted. 0 times theorem prover too weak. 76 trivial. 0 not checked. [2025-01-09 17:23:34,362 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 17:23:34,362 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1872791756] [2025-01-09 17:23:34,362 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1872791756] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 17:23:34,363 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1040751703] [2025-01-09 17:23:34,363 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 17:23:34,363 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 17:23:34,364 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 17:23:34,366 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 17:23:34,367 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 17:23:34,521 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 99 statements into 1 equivalence classes. [2025-01-09 17:23:34,613 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 99 of 99 statements. [2025-01-09 17:23:34,614 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 17:23:34,614 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 17:23:34,618 INFO L256 TraceCheckSpWp]: Trace formula consists of 684 conjuncts, 66 conjuncts are in the unsatisfiable core [2025-01-09 17:23:34,626 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 17:23:34,727 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 19 [2025-01-09 17:23:34,735 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2025-01-09 17:23:34,909 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 25 [2025-01-09 17:23:34,918 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 21 [2025-01-09 17:23:34,990 INFO L349 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2025-01-09 17:23:34,991 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 20 [2025-01-09 17:23:35,015 INFO L349 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2025-01-09 17:23:35,015 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 15 [2025-01-09 17:23:35,022 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2025-01-09 17:23:36,023 INFO L349 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2025-01-09 17:23:36,023 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 10 [2025-01-09 17:23:36,030 INFO L349 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2025-01-09 17:23:36,030 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 29 treesize of output 13 [2025-01-09 17:23:36,041 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 46 proven. 8 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2025-01-09 17:23:36,041 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-09 17:23:36,259 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-01-09 17:23:36,259 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 18 treesize of output 25 [2025-01-09 17:23:36,266 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-01-09 17:23:36,267 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 22 treesize of output 29 [2025-01-09 17:23:36,277 WARN L851 $PredicateComparison]: unable to prove that (and (forall ((v_arrayElimArr_3 (Array Int Int))) (= (select (select (store |c_#memory_$Pointer$#1.base| (select v_arrayElimArr_3 |c_ULTIMATE.start_aws_linked_list_swap_contents_harness_~#b~0#1.offset|) v_arrayElimArr_3) |c_ULTIMATE.start_aws_linked_list_swap_contents_harness_~#a~0#1.base|) |c_ULTIMATE.start_aws_linked_list_swap_contents_harness_~#a~0#1.offset|) |c_ULTIMATE.start_aws_linked_list_swap_contents_harness_~#a~0#1.base|)) (forall ((v_arrayElimArr_4 (Array Int Int)) (|ULTIMATE.start_aws_linked_list_swap_contents_harness_~#b~0#1.base| Int)) (or (not (= |c_ULTIMATE.start_aws_linked_list_swap_contents_harness_~#b~0#1.offset| (select v_arrayElimArr_4 (+ |c_ULTIMATE.start_aws_linked_list_swap_contents_harness_~#b~0#1.offset| 24)))) (not (= (select v_arrayElimArr_4 |c_ULTIMATE.start_aws_linked_list_swap_contents_harness_~#b~0#1.offset|) (+ |c_ULTIMATE.start_aws_linked_list_swap_contents_harness_~#b~0#1.offset| 16))) (= (select (select (store |c_#memory_$Pointer$#1.offset| |ULTIMATE.start_aws_linked_list_swap_contents_harness_~#b~0#1.base| v_arrayElimArr_4) |c_ULTIMATE.start_aws_linked_list_swap_contents_harness_~#a~0#1.base|) |c_ULTIMATE.start_aws_linked_list_swap_contents_harness_~#a~0#1.offset|) (+ |c_ULTIMATE.start_aws_linked_list_swap_contents_harness_~#a~0#1.offset| 16))))) is different from false [2025-01-09 17:23:36,279 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1040751703] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 17:23:36,279 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-01-09 17:23:36,279 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 15] total 24 [2025-01-09 17:23:36,279 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [571009717] [2025-01-09 17:23:36,279 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-01-09 17:23:36,280 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2025-01-09 17:23:36,280 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 17:23:36,281 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2025-01-09 17:23:36,281 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=88, Invalid=617, Unknown=1, NotChecked=50, Total=756 [2025-01-09 17:23:36,281 INFO L87 Difference]: Start difference. First operand 105 states and 145 transitions. Second operand has 24 states, 20 states have (on average 3.65) internal successors, (73), 19 states have internal predecessors, (73), 12 states have call successors, (23), 4 states have call predecessors, (23), 7 states have return successors, (22), 12 states have call predecessors, (22), 12 states have call successors, (22) [2025-01-09 17:23:38,302 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 17:23:38,302 INFO L93 Difference]: Finished difference Result 248 states and 345 transitions. [2025-01-09 17:23:38,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2025-01-09 17:23:38,302 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 20 states have (on average 3.65) internal successors, (73), 19 states have internal predecessors, (73), 12 states have call successors, (23), 4 states have call predecessors, (23), 7 states have return successors, (22), 12 states have call predecessors, (22), 12 states have call successors, (22) Word has length 99 [2025-01-09 17:23:38,303 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 17:23:38,305 INFO L225 Difference]: With dead ends: 248 [2025-01-09 17:23:38,305 INFO L226 Difference]: Without dead ends: 181 [2025-01-09 17:23:38,306 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 189 GetRequests, 147 SyntacticMatches, 7 SemanticMatches, 35 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 320 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=181, Invalid=1082, Unknown=1, NotChecked=68, Total=1332 [2025-01-09 17:23:38,307 INFO L435 NwaCegarLoop]: 77 mSDtfsCounter, 269 mSDsluCounter, 566 mSDsCounter, 0 mSdLazyCounter, 1541 mSolverCounterSat, 206 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 272 SdHoareTripleChecker+Valid, 643 SdHoareTripleChecker+Invalid, 1747 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 206 IncrementalHoareTripleChecker+Valid, 1541 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2025-01-09 17:23:38,307 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [272 Valid, 643 Invalid, 1747 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [206 Valid, 1541 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2025-01-09 17:23:38,308 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 181 states. [2025-01-09 17:23:38,325 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 181 to 173. [2025-01-09 17:23:38,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 173 states, 106 states have (on average 1.2924528301886793) internal successors, (137), 111 states have internal predecessors, (137), 52 states have call successors, (52), 15 states have call predecessors, (52), 14 states have return successors, (53), 49 states have call predecessors, (53), 50 states have call successors, (53) [2025-01-09 17:23:38,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 173 states to 173 states and 242 transitions. [2025-01-09 17:23:38,329 INFO L78 Accepts]: Start accepts. Automaton has 173 states and 242 transitions. Word has length 99 [2025-01-09 17:23:38,329 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 17:23:38,330 INFO L471 AbstractCegarLoop]: Abstraction has 173 states and 242 transitions. [2025-01-09 17:23:38,331 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 20 states have (on average 3.65) internal successors, (73), 19 states have internal predecessors, (73), 12 states have call successors, (23), 4 states have call predecessors, (23), 7 states have return successors, (22), 12 states have call predecessors, (22), 12 states have call successors, (22) [2025-01-09 17:23:38,331 INFO L276 IsEmpty]: Start isEmpty. Operand 173 states and 242 transitions. [2025-01-09 17:23:38,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2025-01-09 17:23:38,333 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 17:23:38,333 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 17:23:38,342 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 17:23:38,540 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 17:23:38,540 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 17:23:38,540 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 17:23:38,540 INFO L85 PathProgramCache]: Analyzing trace with hash 1880223321, now seen corresponding path program 1 times [2025-01-09 17:23:38,540 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 17:23:38,540 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1339618091] [2025-01-09 17:23:38,540 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 17:23:38,540 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 17:23:38,572 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 100 statements into 1 equivalence classes. [2025-01-09 17:23:38,620 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 100 of 100 statements. [2025-01-09 17:23:38,620 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 17:23:38,620 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 17:23:38,953 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 11 proven. 5 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2025-01-09 17:23:38,953 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 17:23:38,953 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1339618091] [2025-01-09 17:23:38,954 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1339618091] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 17:23:38,954 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1715253995] [2025-01-09 17:23:38,954 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 17:23:38,954 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 17:23:38,954 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 17:23:38,956 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 17:23:38,958 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 17:23:39,112 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 100 statements into 1 equivalence classes. [2025-01-09 17:23:39,186 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 100 of 100 statements. [2025-01-09 17:23:39,186 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 17:23:39,187 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 17:23:39,190 INFO L256 TraceCheckSpWp]: Trace formula consists of 729 conjuncts, 48 conjuncts are in the unsatisfiable core [2025-01-09 17:23:39,197 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 17:23:39,262 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 19 [2025-01-09 17:23:39,267 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2025-01-09 17:23:40,319 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 60 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2025-01-09 17:23:40,319 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 17:23:40,319 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1715253995] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 17:23:40,319 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-09 17:23:40,319 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [6] total 20 [2025-01-09 17:23:40,319 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2040637218] [2025-01-09 17:23:40,319 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 17:23:40,320 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2025-01-09 17:23:40,320 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 17:23:40,321 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2025-01-09 17:23:40,322 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=331, Unknown=0, NotChecked=0, Total=380 [2025-01-09 17:23:40,322 INFO L87 Difference]: Start difference. First operand 173 states and 242 transitions. Second operand has 16 states, 14 states have (on average 3.9285714285714284) internal successors, (55), 13 states have internal predecessors, (55), 6 states have call successors, (14), 3 states have call predecessors, (14), 6 states have return successors, (13), 8 states have call predecessors, (13), 6 states have call successors, (13) [2025-01-09 17:23:41,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 17:23:41,776 INFO L93 Difference]: Finished difference Result 259 states and 357 transitions. [2025-01-09 17:23:41,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2025-01-09 17:23:41,776 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 14 states have (on average 3.9285714285714284) internal successors, (55), 13 states have internal predecessors, (55), 6 states have call successors, (14), 3 states have call predecessors, (14), 6 states have return successors, (13), 8 states have call predecessors, (13), 6 states have call successors, (13) Word has length 100 [2025-01-09 17:23:41,777 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 17:23:41,778 INFO L225 Difference]: With dead ends: 259 [2025-01-09 17:23:41,778 INFO L226 Difference]: Without dead ends: 178 [2025-01-09 17:23:41,779 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 79 SyntacticMatches, 8 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 188 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=135, Invalid=921, Unknown=0, NotChecked=0, Total=1056 [2025-01-09 17:23:41,780 INFO L435 NwaCegarLoop]: 102 mSDtfsCounter, 213 mSDsluCounter, 797 mSDsCounter, 0 mSdLazyCounter, 539 mSolverCounterSat, 78 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 213 SdHoareTripleChecker+Valid, 899 SdHoareTripleChecker+Invalid, 617 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 78 IncrementalHoareTripleChecker+Valid, 539 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2025-01-09 17:23:41,780 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [213 Valid, 899 Invalid, 617 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [78 Valid, 539 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2025-01-09 17:23:41,780 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 178 states. [2025-01-09 17:23:41,807 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 178 to 177. [2025-01-09 17:23:41,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 177 states, 109 states have (on average 1.2660550458715596) internal successors, (138), 113 states have internal predecessors, (138), 52 states have call successors, (52), 16 states have call predecessors, (52), 15 states have return successors, (53), 49 states have call predecessors, (53), 50 states have call successors, (53) [2025-01-09 17:23:41,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177 states to 177 states and 243 transitions. [2025-01-09 17:23:41,810 INFO L78 Accepts]: Start accepts. Automaton has 177 states and 243 transitions. Word has length 100 [2025-01-09 17:23:41,810 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 17:23:41,810 INFO L471 AbstractCegarLoop]: Abstraction has 177 states and 243 transitions. [2025-01-09 17:23:41,810 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 14 states have (on average 3.9285714285714284) internal successors, (55), 13 states have internal predecessors, (55), 6 states have call successors, (14), 3 states have call predecessors, (14), 6 states have return successors, (13), 8 states have call predecessors, (13), 6 states have call successors, (13) [2025-01-09 17:23:41,810 INFO L276 IsEmpty]: Start isEmpty. Operand 177 states and 243 transitions. [2025-01-09 17:23:41,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2025-01-09 17:23:41,812 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 17:23:41,812 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 17:23:41,820 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 17:23:42,016 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 17:23:42,016 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 17:23:42,016 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 17:23:42,016 INFO L85 PathProgramCache]: Analyzing trace with hash 1770183147, now seen corresponding path program 2 times [2025-01-09 17:23:42,016 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 17:23:42,016 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1814578827] [2025-01-09 17:23:42,017 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-01-09 17:23:42,017 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 17:23:42,052 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 101 statements into 2 equivalence classes. [2025-01-09 17:23:42,220 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 101 of 101 statements. [2025-01-09 17:23:42,220 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-01-09 17:23:42,220 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 17:23:42,526 INFO L134 CoverageAnalysis]: Checked inductivity of 89 backedges. 11 proven. 5 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2025-01-09 17:23:42,526 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 17:23:42,526 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1814578827] [2025-01-09 17:23:42,526 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1814578827] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 17:23:42,526 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [530244863] [2025-01-09 17:23:42,526 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-01-09 17:23:42,526 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 17:23:42,527 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 17:23:42,528 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 17:23:42,530 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 17:23:42,719 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 101 statements into 2 equivalence classes. [2025-01-09 17:23:42,965 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 101 of 101 statements. [2025-01-09 17:23:42,966 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-01-09 17:23:42,966 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 17:23:42,972 INFO L256 TraceCheckSpWp]: Trace formula consists of 774 conjuncts, 111 conjuncts are in the unsatisfiable core [2025-01-09 17:23:42,978 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 17:23:42,988 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2025-01-09 17:23:43,041 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 19 [2025-01-09 17:23:43,050 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 9 [2025-01-09 17:23:43,081 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-01-09 17:23:43,082 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 28 [2025-01-09 17:23:43,093 INFO L349 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2025-01-09 17:23:43,093 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 22 [2025-01-09 17:23:43,098 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-01-09 17:23:43,098 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 7 [2025-01-09 17:23:43,115 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-01-09 17:23:43,116 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-01-09 17:23:43,117 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 40 [2025-01-09 17:23:43,130 INFO L349 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2025-01-09 17:23:43,130 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 34 treesize of output 29 [2025-01-09 17:23:43,137 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-01-09 17:23:43,138 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-01-09 17:23:43,138 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 10 [2025-01-09 17:23:43,188 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 20 [2025-01-09 17:23:43,192 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2025-01-09 17:23:43,200 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2025-01-09 17:23:43,241 INFO L349 Elim1Store]: treesize reduction 42, result has 31.1 percent of original size [2025-01-09 17:23:43,241 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 74 treesize of output 97 [2025-01-09 17:23:43,315 INFO L349 Elim1Store]: treesize reduction 140, result has 34.0 percent of original size [2025-01-09 17:23:43,316 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 104 treesize of output 92 [2025-01-09 17:23:43,329 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 43 [2025-01-09 17:23:43,427 INFO L173 IndexEqualityManager]: detected equality via solver [2025-01-09 17:23:43,427 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 13 [2025-01-09 17:23:43,432 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2025-01-09 17:23:43,854 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-01-09 17:23:43,855 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 155 treesize of output 153 [2025-01-09 17:23:43,867 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 149 treesize of output 129 [2025-01-09 17:23:43,934 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 14 [2025-01-09 17:23:44,030 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 17 [2025-01-09 17:23:44,034 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2025-01-09 17:23:44,122 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 20 [2025-01-09 17:23:44,685 INFO L349 Elim1Store]: treesize reduction 908, result has 12.6 percent of original size [2025-01-09 17:23:44,686 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 6 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 9 new quantified variables, introduced 27 case distinctions, treesize of input 549 treesize of output 901 [2025-01-09 17:23:44,733 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-01-09 17:23:44,741 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-01-09 17:23:44,773 INFO L349 Elim1Store]: treesize reduction 50, result has 18.0 percent of original size [2025-01-09 17:23:44,773 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 209 treesize of output 238 [2025-01-09 17:23:44,804 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 552 treesize of output 467 [2025-01-09 17:23:44,952 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 954 treesize of output 796 [2025-01-09 17:23:45,296 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-01-09 17:23:45,300 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-01-09 17:23:45,305 INFO L173 IndexEqualityManager]: detected equality via solver [2025-01-09 17:23:45,308 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 5 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 144 treesize of output 291 [2025-01-09 17:23:45,570 INFO L173 IndexEqualityManager]: detected equality via solver [2025-01-09 17:23:45,571 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 632 treesize of output 523 [2025-01-09 17:23:45,669 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 665 treesize of output 568 [2025-01-09 17:23:45,845 INFO L173 IndexEqualityManager]: detected equality via solver [2025-01-09 17:23:45,846 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 632 treesize of output 523 [2025-01-09 17:23:45,952 INFO L173 IndexEqualityManager]: detected equality via solver [2025-01-09 17:23:45,953 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 632 treesize of output 523 [2025-01-09 17:23:46,037 INFO L173 IndexEqualityManager]: detected equality via solver [2025-01-09 17:23:46,038 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 625 treesize of output 518 [2025-01-09 17:23:46,159 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 1312 treesize of output 1119 [2025-01-09 17:23:46,424 INFO L173 IndexEqualityManager]: detected equality via solver [2025-01-09 17:23:46,425 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-01-09 17:23:46,426 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-01-09 17:23:46,427 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-01-09 17:23:46,432 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-01-09 17:23:46,438 INFO L173 IndexEqualityManager]: detected equality via solver [2025-01-09 17:23:46,440 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-01-09 17:23:46,442 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-01-09 17:23:46,444 INFO L173 IndexEqualityManager]: detected equality via solver [2025-01-09 17:23:46,445 INFO L173 IndexEqualityManager]: detected equality via solver [2025-01-09 17:23:46,451 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 6 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 570 treesize of output 1157 [2025-01-09 17:23:46,662 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 665 treesize of output 568 [2025-01-09 17:23:46,839 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 977 treesize of output 823 [2025-01-09 17:23:46,883 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-01-09 17:23:46,889 INFO L173 IndexEqualityManager]: detected equality via solver [2025-01-09 17:23:46,891 INFO L173 IndexEqualityManager]: detected equality via solver [2025-01-09 17:23:46,892 INFO L173 IndexEqualityManager]: detected equality via solver [2025-01-09 17:23:46,897 INFO L173 IndexEqualityManager]: detected equality via solver [2025-01-09 17:23:46,906 INFO L173 IndexEqualityManager]: detected equality via solver [2025-01-09 17:23:46,910 INFO L173 IndexEqualityManager]: detected equality via solver [2025-01-09 17:23:46,912 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-01-09 17:23:46,918 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 5 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 277 treesize of output 560 [2025-01-09 17:23:47,703 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 231 treesize of output 187 [2025-01-09 17:24:12,987 WARN L286 SmtUtils]: Spent 5.69s on a formula simplification that was a NOOP. DAG size: 363 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2025-01-09 17:24:58,998 WARN L286 SmtUtils]: Spent 20.89s on a formula simplification that was a NOOP. DAG size: 506 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)