./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/aws-c-common/aws_linked_list_push_front_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_push_front_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 21fc7c48ba3810a0e594494bae8b55e00a43dfc3f9be173ed5371437deb91c4d --- Real Ultimate output --- This is Ultimate 0.3.0-?-551b009-m [2025-01-09 17:22:19,965 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-01-09 17:22:20,027 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2025-01-09 17:22:20,031 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-01-09 17:22:20,031 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-01-09 17:22:20,045 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-01-09 17:22:20,045 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-01-09 17:22:20,046 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-01-09 17:22:20,046 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-01-09 17:22:20,046 INFO L153 SettingsManager]: * Use memory slicer=true [2025-01-09 17:22:20,047 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-01-09 17:22:20,047 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-01-09 17:22:20,047 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-01-09 17:22:20,047 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-01-09 17:22:20,047 INFO L153 SettingsManager]: * Use SBE=true [2025-01-09 17:22:20,047 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-01-09 17:22:20,047 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-01-09 17:22:20,047 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-01-09 17:22:20,047 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-01-09 17:22:20,047 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-01-09 17:22:20,047 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-01-09 17:22:20,047 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-01-09 17:22:20,047 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-01-09 17:22:20,047 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-01-09 17:22:20,047 INFO L153 SettingsManager]: * Use constant arrays=true [2025-01-09 17:22:20,047 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-01-09 17:22:20,048 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 17:22:20,048 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-09 17:22:20,048 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 17:22:20,048 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 17:22:20,048 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-01-09 17:22:20,048 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 17:22:20,048 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-09 17:22:20,048 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 17:22:20,048 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 17:22:20,048 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-01-09 17:22:20,048 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-01-09 17:22:20,048 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-01-09 17:22:20,048 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-01-09 17:22:20,048 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-01-09 17:22:20,048 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-01-09 17:22:20,048 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-01-09 17:22:20,048 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-01-09 17:22:20,048 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-01-09 17:22:20,048 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-01-09 17:22:20,048 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 -> 21fc7c48ba3810a0e594494bae8b55e00a43dfc3f9be173ed5371437deb91c4d [2025-01-09 17:22:20,268 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-01-09 17:22:20,273 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-01-09 17:22:20,275 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-01-09 17:22:20,276 INFO L270 PluginConnector]: Initializing CDTParser... [2025-01-09 17:22:20,276 INFO L274 PluginConnector]: CDTParser initialized [2025-01-09 17:22:20,277 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_linked_list_push_front_harness.i [2025-01-09 17:22:21,455 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/29a289409/6ba93c0d19164f119911f1dcb142a27a/FLAGbb1cdcaca [2025-01-09 17:22:21,910 INFO L384 CDTParser]: Found 1 translation units. [2025-01-09 17:22:21,910 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_linked_list_push_front_harness.i [2025-01-09 17:22:21,934 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/29a289409/6ba93c0d19164f119911f1dcb142a27a/FLAGbb1cdcaca [2025-01-09 17:22:22,019 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/29a289409/6ba93c0d19164f119911f1dcb142a27a [2025-01-09 17:22:22,023 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-01-09 17:22:22,024 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-01-09 17:22:22,029 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-01-09 17:22:22,029 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-01-09 17:22:22,032 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-01-09 17:22:22,033 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 05:22:22" (1/1) ... [2025-01-09 17:22:22,034 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@45bb565c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:22:22, skipping insertion in model container [2025-01-09 17:22:22,034 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 05:22:22" (1/1) ... [2025-01-09 17:22:22,078 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-01-09 17:22:22,238 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_push_front_harness.i[4500,4513] [2025-01-09 17:22:22,245 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_push_front_harness.i[4560,4573] [2025-01-09 17:22:22,687 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:22:22,687 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:22:22,687 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:22:22,688 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:22:22,688 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:22:22,697 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:22:22,697 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:22:22,698 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:22:22,699 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:22:22,701 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:22:22,701 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:22:22,702 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:22:22,702 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:22:23,026 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_push_front_harness.i[150811,150824] [2025-01-09 17:22:23,027 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 17:22:23,045 INFO L200 MainTranslator]: Completed pre-run [2025-01-09 17:22:23,054 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_push_front_harness.i[4500,4513] [2025-01-09 17:22:23,055 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_push_front_harness.i[4560,4573] [2025-01-09 17:22:23,093 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:22:23,094 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:22:23,094 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:22:23,094 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:22:23,095 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:22:23,103 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:22:23,103 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:22:23,104 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:22:23,105 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:22:23,106 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:22:23,106 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:22:23,107 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:22:23,107 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:22:23,186 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_push_front_harness.i[150811,150824] [2025-01-09 17:22:23,186 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 17:22:23,348 INFO L204 MainTranslator]: Completed translation [2025-01-09 17:22:23,349 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:22:23 WrapperNode [2025-01-09 17:22:23,349 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-01-09 17:22:23,351 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-01-09 17:22:23,351 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-01-09 17:22:23,351 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-01-09 17:22:23,355 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:22:23" (1/1) ... [2025-01-09 17:22:23,393 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:22:23" (1/1) ... [2025-01-09 17:22:23,419 INFO L138 Inliner]: procedures = 668, calls = 1046, calls flagged for inlining = 53, calls inlined = 6, statements flattened = 147 [2025-01-09 17:22:23,419 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-01-09 17:22:23,420 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-01-09 17:22:23,420 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-01-09 17:22:23,420 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-01-09 17:22:23,426 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:22:23" (1/1) ... [2025-01-09 17:22:23,426 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:22:23" (1/1) ... [2025-01-09 17:22:23,429 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:22:23" (1/1) ... [2025-01-09 17:22:23,451 INFO L175 MemorySlicer]: Split 36 memory accesses to 3 slices as follows [2, 5, 29]. 81 percent of accesses are in the largest equivalence class. The 7 initializations are split as follows [2, 5, 0]. The 10 writes are split as follows [0, 0, 10]. [2025-01-09 17:22:23,455 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:22:23" (1/1) ... [2025-01-09 17:22:23,456 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:22:23" (1/1) ... [2025-01-09 17:22:23,464 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:22:23" (1/1) ... [2025-01-09 17:22:23,465 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:22:23" (1/1) ... [2025-01-09 17:22:23,467 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:22:23" (1/1) ... [2025-01-09 17:22:23,469 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:22:23" (1/1) ... [2025-01-09 17:22:23,470 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:22:23" (1/1) ... [2025-01-09 17:22:23,475 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-01-09 17:22:23,475 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-01-09 17:22:23,475 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-01-09 17:22:23,481 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-01-09 17:22:23,482 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:22:23" (1/1) ... [2025-01-09 17:22:23,486 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 17:22:23,500 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 17:22:23,510 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 17:22:23,517 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 17:22:23,535 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-01-09 17:22:23,536 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2025-01-09 17:22:23,536 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2025-01-09 17:22:23,536 INFO L130 BoogieDeclarations]: Found specification of procedure aws_linked_list_node_next_is_valid [2025-01-09 17:22:23,536 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_linked_list_node_next_is_valid [2025-01-09 17:22:23,536 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-01-09 17:22:23,536 INFO L130 BoogieDeclarations]: Found specification of procedure aws_linked_list_is_valid [2025-01-09 17:22:23,536 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_linked_list_is_valid [2025-01-09 17:22:23,536 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-01-09 17:22:23,536 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2025-01-09 17:22:23,536 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2025-01-09 17:22:23,536 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2025-01-09 17:22:23,537 INFO L130 BoogieDeclarations]: Found specification of procedure aws_linked_list_insert_before [2025-01-09 17:22:23,537 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_linked_list_insert_before [2025-01-09 17:22:23,537 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-01-09 17:22:23,537 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-01-09 17:22:23,537 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2025-01-09 17:22:23,537 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2025-01-09 17:22:23,537 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-01-09 17:22:23,537 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2025-01-09 17:22:23,537 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2025-01-09 17:22:23,537 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2025-01-09 17:22:23,537 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2025-01-09 17:22:23,537 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2025-01-09 17:22:23,537 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2025-01-09 17:22:23,537 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2025-01-09 17:22:23,537 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2025-01-09 17:22:23,537 INFO L130 BoogieDeclarations]: Found specification of procedure aws_linked_list_node_prev_is_valid [2025-01-09 17:22:23,537 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_linked_list_node_prev_is_valid [2025-01-09 17:22:23,537 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-01-09 17:22:23,537 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-01-09 17:22:23,537 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-01-09 17:22:23,721 INFO L234 CfgBuilder]: Building ICFG [2025-01-09 17:22:23,722 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-01-09 17:22:23,946 INFO L? ?]: Removed 66 outVars from TransFormulas that were not future-live. [2025-01-09 17:22:23,946 INFO L283 CfgBuilder]: Performing block encoding [2025-01-09 17:22:23,953 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-01-09 17:22:23,953 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2025-01-09 17:22:23,953 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 05:22:23 BoogieIcfgContainer [2025-01-09 17:22:23,954 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-01-09 17:22:23,955 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-01-09 17:22:23,955 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-01-09 17:22:23,958 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-01-09 17:22:23,958 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.01 05:22:22" (1/3) ... [2025-01-09 17:22:23,958 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4980f2f1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 05:22:23, skipping insertion in model container [2025-01-09 17:22:23,958 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:22:23" (2/3) ... [2025-01-09 17:22:23,959 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4980f2f1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 05:22:23, skipping insertion in model container [2025-01-09 17:22:23,959 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 05:22:23" (3/3) ... [2025-01-09 17:22:23,960 INFO L128 eAbstractionObserver]: Analyzing ICFG aws_linked_list_push_front_harness.i [2025-01-09 17:22:23,969 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-01-09 17:22:23,970 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG aws_linked_list_push_front_harness.i that has 8 procedures, 102 locations, 1 initial locations, 2 loop locations, and 1 error locations. [2025-01-09 17:22:24,009 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-01-09 17:22:24,017 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;@5d1e2e53, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-01-09 17:22:24,017 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-01-09 17:22:24,020 INFO L276 IsEmpty]: Start isEmpty. Operand has 102 states, 65 states have (on average 1.2615384615384615) internal successors, (82), 66 states have internal predecessors, (82), 28 states have call successors, (28), 7 states have call predecessors, (28), 7 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) [2025-01-09 17:22:24,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2025-01-09 17:22:24,026 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 17:22:24,027 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 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] [2025-01-09 17:22:24,027 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 17:22:24,043 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 17:22:24,043 INFO L85 PathProgramCache]: Analyzing trace with hash 1024099258, now seen corresponding path program 1 times [2025-01-09 17:22:24,048 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 17:22:24,048 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1684549912] [2025-01-09 17:22:24,048 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 17:22:24,049 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 17:22:24,143 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 73 statements into 1 equivalence classes. [2025-01-09 17:22:24,162 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 73 of 73 statements. [2025-01-09 17:22:24,163 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 17:22:24,163 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 17:22:24,308 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2025-01-09 17:22:24,309 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 17:22:24,309 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1684549912] [2025-01-09 17:22:24,310 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1684549912] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 17:22:24,310 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [688851888] [2025-01-09 17:22:24,310 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 17:22:24,310 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 17:22:24,310 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 17:22:24,312 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 17:22:24,314 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 17:22:24,444 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 73 statements into 1 equivalence classes. [2025-01-09 17:22:24,512 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 73 of 73 statements. [2025-01-09 17:22:24,512 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 17:22:24,512 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 17:22:24,515 INFO L256 TraceCheckSpWp]: Trace formula consists of 426 conjuncts, 1 conjuncts are in the unsatisfiable core [2025-01-09 17:22:24,529 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 17:22:24,552 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2025-01-09 17:22:24,553 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 17:22:24,553 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [688851888] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 17:22:24,553 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-09 17:22:24,553 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2025-01-09 17:22:24,555 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [676415338] [2025-01-09 17:22:24,555 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 17:22:24,558 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-01-09 17:22:24,558 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 17:22:24,571 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-01-09 17:22:24,572 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-01-09 17:22:24,574 INFO L87 Difference]: Start difference. First operand has 102 states, 65 states have (on average 1.2615384615384615) internal successors, (82), 66 states have internal predecessors, (82), 28 states have call successors, (28), 7 states have call predecessors, (28), 7 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) Second operand has 2 states, 2 states have (on average 18.5) internal successors, (37), 2 states have internal predecessors, (37), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2025-01-09 17:22:24,603 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 17:22:24,603 INFO L93 Difference]: Finished difference Result 196 states and 284 transitions. [2025-01-09 17:22:24,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-09 17:22:24,606 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 18.5) internal successors, (37), 2 states have internal predecessors, (37), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 73 [2025-01-09 17:22:24,606 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 17:22:24,611 INFO L225 Difference]: With dead ends: 196 [2025-01-09 17:22:24,612 INFO L226 Difference]: Without dead ends: 97 [2025-01-09 17:22:24,616 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 74 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 17:22:24,619 INFO L435 NwaCegarLoop]: 136 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, 136 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 17:22:24,621 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 136 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 17:22:24,629 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states. [2025-01-09 17:22:24,647 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 97. [2025-01-09 17:22:24,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 97 states, 61 states have (on average 1.2459016393442623) internal successors, (76), 62 states have internal predecessors, (76), 28 states have call successors, (28), 7 states have call predecessors, (28), 7 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2025-01-09 17:22:24,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 131 transitions. [2025-01-09 17:22:24,656 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 131 transitions. Word has length 73 [2025-01-09 17:22:24,657 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 17:22:24,657 INFO L471 AbstractCegarLoop]: Abstraction has 97 states and 131 transitions. [2025-01-09 17:22:24,657 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 18.5) internal successors, (37), 2 states have internal predecessors, (37), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2025-01-09 17:22:24,657 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 131 transitions. [2025-01-09 17:22:24,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2025-01-09 17:22:24,658 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 17:22:24,659 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 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] [2025-01-09 17:22:24,666 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 17:22:24,860 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 17:22:24,861 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 17:22:24,862 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 17:22:24,862 INFO L85 PathProgramCache]: Analyzing trace with hash 1383712880, now seen corresponding path program 1 times [2025-01-09 17:22:24,862 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 17:22:24,862 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [209928655] [2025-01-09 17:22:24,862 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 17:22:24,863 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 17:22:24,916 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 73 statements into 1 equivalence classes. [2025-01-09 17:22:24,940 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 73 of 73 statements. [2025-01-09 17:22:24,940 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 17:22:24,940 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 17:22:25,155 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2025-01-09 17:22:25,155 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 17:22:25,155 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [209928655] [2025-01-09 17:22:25,155 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [209928655] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 17:22:25,156 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 17:22:25,156 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-01-09 17:22:25,156 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [711179645] [2025-01-09 17:22:25,156 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 17:22:25,157 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-09 17:22:25,158 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 17:22:25,158 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-09 17:22:25,158 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-01-09 17:22:25,159 INFO L87 Difference]: Start difference. First operand 97 states and 131 transitions. Second operand has 4 states, 4 states have (on average 8.75) internal successors, (35), 4 states have internal predecessors, (35), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2025-01-09 17:22:25,197 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 17:22:25,199 INFO L93 Difference]: Finished difference Result 185 states and 254 transitions. [2025-01-09 17:22:25,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-09 17:22:25,200 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.75) internal successors, (35), 4 states have internal predecessors, (35), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 73 [2025-01-09 17:22:25,200 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 17:22:25,201 INFO L225 Difference]: With dead ends: 185 [2025-01-09 17:22:25,201 INFO L226 Difference]: Without dead ends: 100 [2025-01-09 17:22:25,202 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-01-09 17:22:25,202 INFO L435 NwaCegarLoop]: 128 mSDtfsCounter, 1 mSDsluCounter, 248 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 376 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-01-09 17:22:25,202 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 376 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 17:22:25,203 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100 states. [2025-01-09 17:22:25,214 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 99. [2025-01-09 17:22:25,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 99 states, 63 states have (on average 1.2380952380952381) internal successors, (78), 64 states have internal predecessors, (78), 28 states have call successors, (28), 7 states have call predecessors, (28), 7 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2025-01-09 17:22:25,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 133 transitions. [2025-01-09 17:22:25,217 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 133 transitions. Word has length 73 [2025-01-09 17:22:25,218 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 17:22:25,219 INFO L471 AbstractCegarLoop]: Abstraction has 99 states and 133 transitions. [2025-01-09 17:22:25,219 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.75) internal successors, (35), 4 states have internal predecessors, (35), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2025-01-09 17:22:25,219 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 133 transitions. [2025-01-09 17:22:25,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2025-01-09 17:22:25,222 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 17:22:25,222 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 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] [2025-01-09 17:22:25,222 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-01-09 17:22:25,222 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 17:22:25,223 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 17:22:25,223 INFO L85 PathProgramCache]: Analyzing trace with hash -1372914386, now seen corresponding path program 1 times [2025-01-09 17:22:25,223 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 17:22:25,223 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1470700717] [2025-01-09 17:22:25,224 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 17:22:25,224 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 17:22:25,267 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 73 statements into 1 equivalence classes. [2025-01-09 17:22:25,278 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 73 of 73 statements. [2025-01-09 17:22:25,279 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 17:22:25,279 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 17:22:25,443 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2025-01-09 17:22:25,443 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 17:22:25,443 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1470700717] [2025-01-09 17:22:25,443 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1470700717] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 17:22:25,443 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 17:22:25,443 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-01-09 17:22:25,443 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [297120165] [2025-01-09 17:22:25,444 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 17:22:25,444 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-09 17:22:25,444 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 17:22:25,446 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-09 17:22:25,446 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-01-09 17:22:25,446 INFO L87 Difference]: Start difference. First operand 99 states and 133 transitions. Second operand has 4 states, 4 states have (on average 8.75) internal successors, (35), 4 states have internal predecessors, (35), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2025-01-09 17:22:25,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 17:22:25,481 INFO L93 Difference]: Finished difference Result 189 states and 259 transitions. [2025-01-09 17:22:25,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-09 17:22:25,482 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.75) internal successors, (35), 4 states have internal predecessors, (35), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 73 [2025-01-09 17:22:25,482 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 17:22:25,483 INFO L225 Difference]: With dead ends: 189 [2025-01-09 17:22:25,484 INFO L226 Difference]: Without dead ends: 102 [2025-01-09 17:22:25,485 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-01-09 17:22:25,486 INFO L435 NwaCegarLoop]: 128 mSDtfsCounter, 1 mSDsluCounter, 250 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 378 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-01-09 17:22:25,487 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 378 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 17:22:25,488 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102 states. [2025-01-09 17:22:25,495 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102 to 102. [2025-01-09 17:22:25,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 102 states, 66 states have (on average 1.2272727272727273) internal successors, (81), 67 states have internal predecessors, (81), 28 states have call successors, (28), 7 states have call predecessors, (28), 7 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2025-01-09 17:22:25,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 136 transitions. [2025-01-09 17:22:25,498 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 136 transitions. Word has length 73 [2025-01-09 17:22:25,499 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 17:22:25,499 INFO L471 AbstractCegarLoop]: Abstraction has 102 states and 136 transitions. [2025-01-09 17:22:25,499 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.75) internal successors, (35), 4 states have internal predecessors, (35), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2025-01-09 17:22:25,500 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 136 transitions. [2025-01-09 17:22:25,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2025-01-09 17:22:25,502 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 17:22:25,502 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 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] [2025-01-09 17:22:25,502 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-01-09 17:22:25,502 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 17:22:25,502 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 17:22:25,503 INFO L85 PathProgramCache]: Analyzing trace with hash -1853994644, now seen corresponding path program 1 times [2025-01-09 17:22:25,503 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 17:22:25,503 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1021735337] [2025-01-09 17:22:25,503 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 17:22:25,503 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 17:22:25,538 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 73 statements into 1 equivalence classes. [2025-01-09 17:22:25,552 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 73 of 73 statements. [2025-01-09 17:22:25,553 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 17:22:25,553 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 17:22:26,224 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2025-01-09 17:22:26,225 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 17:22:26,225 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1021735337] [2025-01-09 17:22:26,225 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1021735337] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 17:22:26,225 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 17:22:26,226 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2025-01-09 17:22:26,226 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [276205858] [2025-01-09 17:22:26,226 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 17:22:26,226 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-01-09 17:22:26,226 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 17:22:26,227 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-01-09 17:22:26,227 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2025-01-09 17:22:26,228 INFO L87 Difference]: Start difference. First operand 102 states and 136 transitions. Second operand has 10 states, 9 states have (on average 3.888888888888889) internal successors, (35), 10 states have internal predecessors, (35), 3 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (9), 2 states have call predecessors, (9), 3 states have call successors, (9) [2025-01-09 17:22:26,551 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 17:22:26,551 INFO L93 Difference]: Finished difference Result 204 states and 275 transitions. [2025-01-09 17:22:26,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2025-01-09 17:22:26,551 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.888888888888889) internal successors, (35), 10 states have internal predecessors, (35), 3 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (9), 2 states have call predecessors, (9), 3 states have call successors, (9) Word has length 73 [2025-01-09 17:22:26,552 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 17:22:26,553 INFO L225 Difference]: With dead ends: 204 [2025-01-09 17:22:26,553 INFO L226 Difference]: Without dead ends: 114 [2025-01-09 17:22:26,554 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=193, Unknown=0, NotChecked=0, Total=240 [2025-01-09 17:22:26,554 INFO L435 NwaCegarLoop]: 116 mSDtfsCounter, 30 mSDsluCounter, 804 mSDsCounter, 0 mSdLazyCounter, 239 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 920 SdHoareTripleChecker+Invalid, 250 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 239 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-01-09 17:22:26,554 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 920 Invalid, 250 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 239 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-01-09 17:22:26,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2025-01-09 17:22:26,564 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 111. [2025-01-09 17:22:26,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 111 states, 74 states have (on average 1.2162162162162162) internal successors, (90), 76 states have internal predecessors, (90), 28 states have call successors, (28), 7 states have call predecessors, (28), 8 states have return successors, (29), 27 states have call predecessors, (29), 27 states have call successors, (29) [2025-01-09 17:22:26,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 147 transitions. [2025-01-09 17:22:26,566 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 147 transitions. Word has length 73 [2025-01-09 17:22:26,566 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 17:22:26,566 INFO L471 AbstractCegarLoop]: Abstraction has 111 states and 147 transitions. [2025-01-09 17:22:26,566 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.888888888888889) internal successors, (35), 10 states have internal predecessors, (35), 3 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (9), 2 states have call predecessors, (9), 3 states have call successors, (9) [2025-01-09 17:22:26,566 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 147 transitions. [2025-01-09 17:22:26,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2025-01-09 17:22:26,567 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 17:22:26,567 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 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] [2025-01-09 17:22:26,567 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-01-09 17:22:26,567 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 17:22:26,567 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 17:22:26,567 INFO L85 PathProgramCache]: Analyzing trace with hash 507693874, now seen corresponding path program 1 times [2025-01-09 17:22:26,568 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 17:22:26,568 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2109092774] [2025-01-09 17:22:26,568 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 17:22:26,568 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 17:22:26,600 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 73 statements into 1 equivalence classes. [2025-01-09 17:22:26,667 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 73 of 73 statements. [2025-01-09 17:22:26,669 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 17:22:26,669 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 17:22:26,928 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 3 proven. 9 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2025-01-09 17:22:26,928 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 17:22:26,928 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2109092774] [2025-01-09 17:22:26,928 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2109092774] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 17:22:26,929 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1822360595] [2025-01-09 17:22:26,929 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 17:22:26,929 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 17:22:26,929 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 17:22:26,933 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 17:22:26,939 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 17:22:27,054 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 73 statements into 1 equivalence classes. [2025-01-09 17:22:27,111 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 73 of 73 statements. [2025-01-09 17:22:27,111 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 17:22:27,111 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 17:22:27,114 INFO L256 TraceCheckSpWp]: Trace formula consists of 431 conjuncts, 136 conjuncts are in the unsatisfiable core [2025-01-09 17:22:27,121 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 17:22:27,169 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 17:22:27,288 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 15 [2025-01-09 17:22:27,321 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 15 [2025-01-09 17:22:27,959 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 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 15 treesize of output 7 [2025-01-09 17:22:28,500 INFO L349 Elim1Store]: treesize reduction 247, result has 21.3 percent of original size [2025-01-09 17:22:28,501 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 6 new quantified variables, introduced 7 case distinctions, treesize of input 159 treesize of output 202 [2025-01-09 17:22:28,508 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-01-09 17:22:28,512 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 93 treesize of output 80 [2025-01-09 17:22:28,534 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-01-09 17:22:28,595 INFO L349 Elim1Store]: treesize reduction 146, result has 15.6 percent of original size [2025-01-09 17:22:28,596 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 6 new quantified variables, introduced 9 case distinctions, treesize of input 693 treesize of output 701 [2025-01-09 17:22:28,641 INFO L173 IndexEqualityManager]: detected equality via solver [2025-01-09 17:22:28,647 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-01-09 17:22:28,649 INFO L173 IndexEqualityManager]: detected equality via solver [2025-01-09 17:22:28,706 INFO L349 Elim1Store]: treesize reduction 116, result has 21.1 percent of original size [2025-01-09 17:22:28,707 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 3 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 352 treesize of output 429 [2025-01-09 17:22:28,742 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 255 treesize of output 234 [2025-01-09 17:22:29,180 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 128 treesize of output 104 [2025-01-09 17:22:29,213 INFO L349 Elim1Store]: treesize reduction 32, result has 38.5 percent of original size [2025-01-09 17:22:29,213 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 136 treesize of output 127 [2025-01-09 17:22:29,248 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 89 treesize of output 67 [2025-01-09 17:22:29,258 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 0 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 27 [2025-01-09 17:22:29,277 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 352 treesize of output 286 [2025-01-09 17:22:29,288 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 169 treesize of output 139 [2025-01-09 17:22:29,293 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 11 treesize of output 7 [2025-01-09 17:22:29,318 INFO L349 Elim1Store]: treesize reduction 32, result has 38.5 percent of original size [2025-01-09 17:22:29,318 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 126 treesize of output 117 [2025-01-09 17:22:29,404 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 0 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 29 [2025-01-09 17:22:29,416 WARN L320 FreeRefinementEngine]: Global settings require throwing the following exception [2025-01-09 17:22:29,423 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 17:22:29,620 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 17:22:29,621 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: no need to replace index at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.DerPreprocessor.constructReplacementForSelectCase(DerPreprocessor.java:331) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.DerPreprocessor.constructDerEnabler(DerPreprocessor.java:186) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.DerPreprocessor.(DerPreprocessor.java:144) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.ElimStorePlain.applyComplexEliminationRules(ElimStorePlain.java:153) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminate(DualJunctionSaa.java:190) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminateOne3(DualJunctionSaa.java:172) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminateOne2(DualJunctionSaa.java:151) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminateOne1(DualJunctionSaa.java:140) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminateOne0(DualJunctionSaa.java:122) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminateOne(DualJunctionSaa.java:108) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryExhaustivelyToEliminate(DualJunctionSaa.java:93) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminate(DualJunctionSaa.java:88) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.tryToEliminateOne(QuantifierPusher.java:542) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.applyNewEliminationTechniquesExhaustively(QuantifierPusher.java:521) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.applyDualJunctionEliminationTechniques(QuantifierPusher.java:514) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.tryToPushOverDualFiniteConnective(QuantifierPusher.java:325) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:189) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:1) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine$ApplicationTermTask.doStep(TermContextTransformationEngine.java:209) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:100) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:84) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.eliminate(QuantifierPushTermWalker.java:297) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.eliminate(QuantifierPushTermWalker.java:283) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.PartialQuantifierElimination.eliminate(PartialQuantifierElimination.java:51) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer$QuantifierEliminationPostprocessor.postprocess(IterativePredicateTransformer.java:234) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.applyPostprocessors(IterativePredicateTransformer.java:416) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.computeStrongestPostconditionSequence(IterativePredicateTransformer.java:195) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolantsUsingUnsatCore(TraceCheckSpWp.java:291) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolants(TraceCheckSpWp.java:181) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.(TraceCheckSpWp.java:160) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:106) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:77) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:267) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:148) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:137) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:82) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:317) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:407) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:342) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:324) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:428) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:314) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseSequentialProgram(TraceAbstractionStarter.java:275) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:167) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:140) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:132) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:150) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:127) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:233) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:227) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:144) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2025-01-09 17:22:29,626 INFO L158 Benchmark]: Toolchain (without parser) took 7601.37ms. Allocated memory was 142.6MB in the beginning and 402.7MB in the end (delta: 260.0MB). Free memory was 99.8MB in the beginning and 188.8MB in the end (delta: -89.0MB). Peak memory consumption was 206.1MB. Max. memory is 16.1GB. [2025-01-09 17:22:29,626 INFO L158 Benchmark]: CDTParser took 0.21ms. Allocated memory is still 201.3MB. Free memory is still 115.9MB. There was no memory consumed. Max. memory is 16.1GB. [2025-01-09 17:22:29,626 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1320.64ms. Allocated memory is still 142.6MB. Free memory was 99.8MB in the beginning and 92.3MB in the end (delta: 7.5MB). Peak memory consumption was 95.0MB. Max. memory is 16.1GB. [2025-01-09 17:22:29,626 INFO L158 Benchmark]: Boogie Procedure Inliner took 68.13ms. Allocated memory is still 142.6MB. Free memory was 92.3MB in the beginning and 86.9MB in the end (delta: 5.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-01-09 17:22:29,627 INFO L158 Benchmark]: Boogie Preprocessor took 55.14ms. Allocated memory is still 142.6MB. Free memory was 86.9MB in the beginning and 82.3MB in the end (delta: 4.6MB). There was no memory consumed. Max. memory is 16.1GB. [2025-01-09 17:22:29,627 INFO L158 Benchmark]: RCFGBuilder took 478.35ms. Allocated memory is still 142.6MB. Free memory was 82.3MB in the beginning and 53.3MB in the end (delta: 29.0MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2025-01-09 17:22:29,627 INFO L158 Benchmark]: TraceAbstraction took 5670.31ms. Allocated memory was 142.6MB in the beginning and 402.7MB in the end (delta: 260.0MB). Free memory was 52.5MB in the beginning and 188.8MB in the end (delta: -136.2MB). Peak memory consumption was 159.0MB. Max. memory is 16.1GB. [2025-01-09 17:22:29,629 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21ms. Allocated memory is still 201.3MB. Free memory is still 115.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1320.64ms. Allocated memory is still 142.6MB. Free memory was 99.8MB in the beginning and 92.3MB in the end (delta: 7.5MB). Peak memory consumption was 95.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 68.13ms. Allocated memory is still 142.6MB. Free memory was 92.3MB in the beginning and 86.9MB in the end (delta: 5.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 55.14ms. Allocated memory is still 142.6MB. Free memory was 86.9MB in the beginning and 82.3MB in the end (delta: 4.6MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 478.35ms. Allocated memory is still 142.6MB. Free memory was 82.3MB in the beginning and 53.3MB in the end (delta: 29.0MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. * TraceAbstraction took 5670.31ms. Allocated memory was 142.6MB in the beginning and 402.7MB in the end (delta: 260.0MB). Free memory was 52.5MB in the beginning and 188.8MB in the end (delta: -136.2MB). Peak memory consumption was 159.0MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: no need to replace index de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: no need to replace index: de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.DerPreprocessor.constructReplacementForSelectCase(DerPreprocessor.java:331) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2025-01-09 17:22:29,640 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### 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_push_front_harness.i -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Bitvector.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 21fc7c48ba3810a0e594494bae8b55e00a43dfc3f9be173ed5371437deb91c4d --- Real Ultimate output --- This is Ultimate 0.3.0-?-551b009-m [2025-01-09 17:22:31,489 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-01-09 17:22:31,562 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2025-01-09 17:22:31,565 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-01-09 17:22:31,568 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-01-09 17:22:31,617 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-01-09 17:22:31,621 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-01-09 17:22:31,622 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-01-09 17:22:31,623 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-01-09 17:22:31,623 INFO L153 SettingsManager]: * Use memory slicer=true [2025-01-09 17:22:31,623 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-01-09 17:22:31,623 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-01-09 17:22:31,623 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-01-09 17:22:31,623 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-01-09 17:22:31,623 INFO L153 SettingsManager]: * Use SBE=true [2025-01-09 17:22:31,623 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-01-09 17:22:31,623 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-01-09 17:22:31,623 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-01-09 17:22:31,623 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-01-09 17:22:31,623 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-01-09 17:22:31,623 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-01-09 17:22:31,623 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-01-09 17:22:31,623 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2025-01-09 17:22:31,623 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2025-01-09 17:22:31,624 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-01-09 17:22:31,624 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-01-09 17:22:31,624 INFO L153 SettingsManager]: * Use constant arrays=true [2025-01-09 17:22:31,624 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-01-09 17:22:31,624 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 17:22:31,624 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-09 17:22:31,624 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 17:22:31,624 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 17:22:31,624 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-01-09 17:22:31,624 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 17:22:31,624 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-09 17:22:31,624 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 17:22:31,624 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 17:22:31,624 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-01-09 17:22:31,624 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-01-09 17:22:31,624 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-01-09 17:22:31,624 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-01-09 17:22:31,624 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2025-01-09 17:22:31,625 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2025-01-09 17:22:31,625 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-01-09 17:22:31,625 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-01-09 17:22:31,625 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-01-09 17:22:31,625 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-01-09 17:22:31,625 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 -> 21fc7c48ba3810a0e594494bae8b55e00a43dfc3f9be173ed5371437deb91c4d [2025-01-09 17:22:31,866 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-01-09 17:22:31,871 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-01-09 17:22:31,873 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-01-09 17:22:31,873 INFO L270 PluginConnector]: Initializing CDTParser... [2025-01-09 17:22:31,874 INFO L274 PluginConnector]: CDTParser initialized [2025-01-09 17:22:31,874 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_linked_list_push_front_harness.i [2025-01-09 17:22:33,152 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/c0b6edba7/fe64c515b73a4644ba3c1a912fbb268c/FLAG5292a45d7 [2025-01-09 17:22:33,553 INFO L384 CDTParser]: Found 1 translation units. [2025-01-09 17:22:33,553 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_linked_list_push_front_harness.i [2025-01-09 17:22:33,587 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/c0b6edba7/fe64c515b73a4644ba3c1a912fbb268c/FLAG5292a45d7 [2025-01-09 17:22:33,718 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/c0b6edba7/fe64c515b73a4644ba3c1a912fbb268c [2025-01-09 17:22:33,720 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-01-09 17:22:33,725 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-01-09 17:22:33,726 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-01-09 17:22:33,726 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-01-09 17:22:33,734 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-01-09 17:22:33,734 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 05:22:33" (1/1) ... [2025-01-09 17:22:33,738 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5b675924 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:22:33, skipping insertion in model container [2025-01-09 17:22:33,739 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 05:22:33" (1/1) ... [2025-01-09 17:22:33,809 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-01-09 17:22:33,973 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_push_front_harness.i[4500,4513] [2025-01-09 17:22:33,979 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_push_front_harness.i[4560,4573] [2025-01-09 17:22:34,271 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-09 17:22:34,344 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-09 17:22:34,347 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-09 17:22:34,348 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-09 17:22:34,360 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-09 17:22:34,364 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:22:34,365 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:22:34,366 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:22:34,366 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-09 17:22:34,367 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:22:34,368 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:22:34,372 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-09 17:22:34,373 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-09 17:22:34,374 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-09 17:22:34,375 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-09 17:22:34,380 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:22:34,383 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-09 17:22:34,383 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:22:34,383 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-09 17:22:34,384 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:22:34,385 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-09 17:22:34,385 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:22:34,385 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-09 17:22:34,386 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:22:34,387 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-09 17:22:34,387 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:22:34,387 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-09 17:22:34,387 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:22:34,388 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:22:34,594 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-09 17:22:34,594 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-09 17:22:34,595 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-09 17:22:34,595 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-09 17:22:34,680 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-09 17:22:34,692 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_push_front_harness.i[150811,150824] [2025-01-09 17:22:34,693 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 17:22:34,713 INFO L197 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2025-01-09 17:22:34,729 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-01-09 17:22:34,733 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_push_front_harness.i[4500,4513] [2025-01-09 17:22:34,733 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_push_front_harness.i[4560,4573] [2025-01-09 17:22:34,757 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-09 17:22:34,766 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-09 17:22:34,767 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-09 17:22:34,767 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-09 17:22:34,771 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-09 17:22:34,771 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:22:34,771 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:22:34,772 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:22:34,772 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-09 17:22:34,772 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:22:34,772 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:22:34,773 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-09 17:22:34,774 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-09 17:22:34,774 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-09 17:22:34,775 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-09 17:22:34,777 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:22:34,778 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-09 17:22:34,778 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:22:34,778 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-09 17:22:34,779 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:22:34,779 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-09 17:22:34,779 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:22:34,779 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-09 17:22:34,780 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:22:34,780 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-09 17:22:34,780 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:22:34,781 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-09 17:22:34,781 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:22:34,781 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:22:34,834 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-09 17:22:34,834 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-09 17:22:34,834 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-09 17:22:34,834 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-09 17:22:34,853 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-09 17:22:34,857 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_push_front_harness.i[150811,150824] [2025-01-09 17:22:34,858 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 17:22:34,861 INFO L200 MainTranslator]: Completed pre-run [2025-01-09 17:22:34,869 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_push_front_harness.i[4500,4513] [2025-01-09 17:22:34,869 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_push_front_harness.i[4560,4573] [2025-01-09 17:22:34,889 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:22:34,889 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:22:34,889 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:22:34,889 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:22:34,890 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:22:34,894 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:22:34,894 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:22:34,894 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:22:34,894 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:22:34,895 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:22:34,895 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:22:34,895 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:22:34,895 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:22:34,941 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_push_front_harness.i[150811,150824] [2025-01-09 17:22:34,942 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 17:22:35,171 INFO L204 MainTranslator]: Completed translation [2025-01-09 17:22:35,173 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:22:35 WrapperNode [2025-01-09 17:22:35,177 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-01-09 17:22:35,178 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-01-09 17:22:35,178 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-01-09 17:22:35,178 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-01-09 17:22:35,187 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:22:35" (1/1) ... [2025-01-09 17:22:35,230 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:22:35" (1/1) ... [2025-01-09 17:22:35,248 INFO L138 Inliner]: procedures = 687, calls = 1046, calls flagged for inlining = 53, calls inlined = 6, statements flattened = 148 [2025-01-09 17:22:35,249 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-01-09 17:22:35,249 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-01-09 17:22:35,249 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-01-09 17:22:35,249 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-01-09 17:22:35,255 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:22:35" (1/1) ... [2025-01-09 17:22:35,255 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:22:35" (1/1) ... [2025-01-09 17:22:35,258 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:22:35" (1/1) ... [2025-01-09 17:22:35,286 INFO L175 MemorySlicer]: Split 36 memory accesses to 3 slices as follows [2, 5, 29]. 81 percent of accesses are in the largest equivalence class. The 7 initializations are split as follows [2, 5, 0]. The 10 writes are split as follows [0, 0, 10]. [2025-01-09 17:22:35,286 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:22:35" (1/1) ... [2025-01-09 17:22:35,286 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:22:35" (1/1) ... [2025-01-09 17:22:35,301 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:22:35" (1/1) ... [2025-01-09 17:22:35,302 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:22:35" (1/1) ... [2025-01-09 17:22:35,309 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:22:35" (1/1) ... [2025-01-09 17:22:35,317 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:22:35" (1/1) ... [2025-01-09 17:22:35,318 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:22:35" (1/1) ... [2025-01-09 17:22:35,325 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-01-09 17:22:35,326 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-01-09 17:22:35,329 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-01-09 17:22:35,329 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-01-09 17:22:35,330 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:22:35" (1/1) ... [2025-01-09 17:22:35,334 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 17:22:35,347 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 17:22:35,357 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 17:22:35,367 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 17:22:35,386 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-01-09 17:22:35,386 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2025-01-09 17:22:35,386 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2025-01-09 17:22:35,386 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2025-01-09 17:22:35,386 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2025-01-09 17:22:35,386 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2025-01-09 17:22:35,386 INFO L130 BoogieDeclarations]: Found specification of procedure aws_linked_list_node_next_is_valid [2025-01-09 17:22:35,386 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_linked_list_node_next_is_valid [2025-01-09 17:22:35,386 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-01-09 17:22:35,386 INFO L130 BoogieDeclarations]: Found specification of procedure aws_linked_list_is_valid [2025-01-09 17:22:35,387 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_linked_list_is_valid [2025-01-09 17:22:35,387 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-01-09 17:22:35,387 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2025-01-09 17:22:35,387 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2025-01-09 17:22:35,387 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2025-01-09 17:22:35,387 INFO L130 BoogieDeclarations]: Found specification of procedure aws_linked_list_insert_before [2025-01-09 17:22:35,387 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_linked_list_insert_before [2025-01-09 17:22:35,387 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-01-09 17:22:35,387 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-01-09 17:22:35,387 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2025-01-09 17:22:35,387 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2025-01-09 17:22:35,389 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-01-09 17:22:35,389 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2025-01-09 17:22:35,389 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2025-01-09 17:22:35,389 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2025-01-09 17:22:35,390 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2025-01-09 17:22:35,390 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2025-01-09 17:22:35,390 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2025-01-09 17:22:35,390 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2025-01-09 17:22:35,390 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2025-01-09 17:22:35,390 INFO L130 BoogieDeclarations]: Found specification of procedure aws_linked_list_node_prev_is_valid [2025-01-09 17:22:35,390 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_linked_list_node_prev_is_valid [2025-01-09 17:22:35,607 INFO L234 CfgBuilder]: Building ICFG [2025-01-09 17:22:35,609 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-01-09 17:22:36,013 INFO L? ?]: Removed 66 outVars from TransFormulas that were not future-live. [2025-01-09 17:22:36,013 INFO L283 CfgBuilder]: Performing block encoding [2025-01-09 17:22:36,020 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-01-09 17:22:36,020 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2025-01-09 17:22:36,025 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 05:22:36 BoogieIcfgContainer [2025-01-09 17:22:36,025 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-01-09 17:22:36,026 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-01-09 17:22:36,026 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-01-09 17:22:36,034 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-01-09 17:22:36,034 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.01 05:22:33" (1/3) ... [2025-01-09 17:22:36,035 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f6f8dc9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 05:22:36, skipping insertion in model container [2025-01-09 17:22:36,035 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:22:35" (2/3) ... [2025-01-09 17:22:36,035 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f6f8dc9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 05:22:36, skipping insertion in model container [2025-01-09 17:22:36,035 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 05:22:36" (3/3) ... [2025-01-09 17:22:36,036 INFO L128 eAbstractionObserver]: Analyzing ICFG aws_linked_list_push_front_harness.i [2025-01-09 17:22:36,051 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-01-09 17:22:36,052 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG aws_linked_list_push_front_harness.i that has 8 procedures, 102 locations, 1 initial locations, 2 loop locations, and 1 error locations. [2025-01-09 17:22:36,100 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-01-09 17:22:36,112 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;@142c02a9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-01-09 17:22:36,112 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-01-09 17:22:36,115 INFO L276 IsEmpty]: Start isEmpty. Operand has 102 states, 65 states have (on average 1.2615384615384615) internal successors, (82), 66 states have internal predecessors, (82), 28 states have call successors, (28), 7 states have call predecessors, (28), 7 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) [2025-01-09 17:22:36,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2025-01-09 17:22:36,122 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 17:22:36,123 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 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] [2025-01-09 17:22:36,123 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 17:22:36,128 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 17:22:36,129 INFO L85 PathProgramCache]: Analyzing trace with hash 1024099258, now seen corresponding path program 1 times [2025-01-09 17:22:36,139 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-01-09 17:22:36,139 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [833176606] [2025-01-09 17:22:36,140 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 17:22:36,140 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 17:22:36,140 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 17:22:36,145 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 17:22:36,151 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 17:22:36,299 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 73 statements into 1 equivalence classes. [2025-01-09 17:22:36,357 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 73 of 73 statements. [2025-01-09 17:22:36,357 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 17:22:36,357 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 17:22:36,362 INFO L256 TraceCheckSpWp]: Trace formula consists of 257 conjuncts, 1 conjuncts are in the unsatisfiable core [2025-01-09 17:22:36,366 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 17:22:36,385 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2025-01-09 17:22:36,386 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 17:22:36,387 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-01-09 17:22:36,387 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [833176606] [2025-01-09 17:22:36,387 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [833176606] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 17:22:36,387 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 17:22:36,388 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-01-09 17:22:36,389 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1090429181] [2025-01-09 17:22:36,390 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 17:22:36,392 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-01-09 17:22:36,393 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-01-09 17:22:36,406 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-01-09 17:22:36,406 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-01-09 17:22:36,408 INFO L87 Difference]: Start difference. First operand has 102 states, 65 states have (on average 1.2615384615384615) internal successors, (82), 66 states have internal predecessors, (82), 28 states have call successors, (28), 7 states have call predecessors, (28), 7 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) Second operand has 2 states, 2 states have (on average 18.5) internal successors, (37), 2 states have internal predecessors, (37), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2025-01-09 17:22:36,432 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 17:22:36,432 INFO L93 Difference]: Finished difference Result 196 states and 284 transitions. [2025-01-09 17:22:36,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-09 17:22:36,434 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 18.5) internal successors, (37), 2 states have internal predecessors, (37), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 73 [2025-01-09 17:22:36,434 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 17:22:36,438 INFO L225 Difference]: With dead ends: 196 [2025-01-09 17:22:36,438 INFO L226 Difference]: Without dead ends: 97 [2025-01-09 17:22:36,444 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 72 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 17:22:36,446 INFO L435 NwaCegarLoop]: 136 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, 136 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 17:22:36,446 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 136 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 17:22:36,462 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states. [2025-01-09 17:22:36,489 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 97. [2025-01-09 17:22:36,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 97 states, 61 states have (on average 1.2459016393442623) internal successors, (76), 62 states have internal predecessors, (76), 28 states have call successors, (28), 7 states have call predecessors, (28), 7 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2025-01-09 17:22:36,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 131 transitions. [2025-01-09 17:22:36,494 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 131 transitions. Word has length 73 [2025-01-09 17:22:36,494 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 17:22:36,494 INFO L471 AbstractCegarLoop]: Abstraction has 97 states and 131 transitions. [2025-01-09 17:22:36,494 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 18.5) internal successors, (37), 2 states have internal predecessors, (37), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2025-01-09 17:22:36,494 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 131 transitions. [2025-01-09 17:22:36,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2025-01-09 17:22:36,496 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 17:22:36,496 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 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] [2025-01-09 17:22:36,505 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 17:22:36,698 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 [2025-01-09 17:22:36,699 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 17:22:36,699 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 17:22:36,700 INFO L85 PathProgramCache]: Analyzing trace with hash 1383712880, now seen corresponding path program 1 times [2025-01-09 17:22:36,701 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-01-09 17:22:36,701 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [177642922] [2025-01-09 17:22:36,701 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 17:22:36,701 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 17:22:36,701 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 17:22:36,703 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 17:22:36,705 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 17:22:36,841 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 73 statements into 1 equivalence classes. [2025-01-09 17:22:36,879 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 73 of 73 statements. [2025-01-09 17:22:36,880 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 17:22:36,880 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 17:22:36,882 INFO L256 TraceCheckSpWp]: Trace formula consists of 257 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-01-09 17:22:36,884 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 17:22:36,909 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2025-01-09 17:22:36,909 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 17:22:36,909 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-01-09 17:22:36,909 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [177642922] [2025-01-09 17:22:36,910 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [177642922] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 17:22:36,910 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 17:22:36,910 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-01-09 17:22:36,910 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [523517885] [2025-01-09 17:22:36,910 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 17:22:36,911 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-09 17:22:36,911 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-01-09 17:22:36,911 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-09 17:22:36,911 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-01-09 17:22:36,911 INFO L87 Difference]: Start difference. First operand 97 states and 131 transitions. Second operand has 4 states, 4 states have (on average 9.5) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2025-01-09 17:22:36,937 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 17:22:36,937 INFO L93 Difference]: Finished difference Result 185 states and 254 transitions. [2025-01-09 17:22:36,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-09 17:22:36,938 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.5) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 73 [2025-01-09 17:22:36,938 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 17:22:36,939 INFO L225 Difference]: With dead ends: 185 [2025-01-09 17:22:36,939 INFO L226 Difference]: Without dead ends: 100 [2025-01-09 17:22:36,939 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 70 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-01-09 17:22:36,940 INFO L435 NwaCegarLoop]: 128 mSDtfsCounter, 1 mSDsluCounter, 248 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 376 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-01-09 17:22:36,940 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 376 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 17:22:36,940 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100 states. [2025-01-09 17:22:36,948 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 99. [2025-01-09 17:22:36,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 99 states, 63 states have (on average 1.2380952380952381) internal successors, (78), 64 states have internal predecessors, (78), 28 states have call successors, (28), 7 states have call predecessors, (28), 7 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2025-01-09 17:22:36,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 133 transitions. [2025-01-09 17:22:36,950 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 133 transitions. Word has length 73 [2025-01-09 17:22:36,950 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 17:22:36,951 INFO L471 AbstractCegarLoop]: Abstraction has 99 states and 133 transitions. [2025-01-09 17:22:36,951 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.5) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2025-01-09 17:22:36,951 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 133 transitions. [2025-01-09 17:22:36,952 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2025-01-09 17:22:36,952 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 17:22:36,952 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 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] [2025-01-09 17:22:36,960 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2025-01-09 17:22:37,152 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 17:22:37,153 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 17:22:37,153 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 17:22:37,154 INFO L85 PathProgramCache]: Analyzing trace with hash -1372914386, now seen corresponding path program 1 times [2025-01-09 17:22:37,154 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-01-09 17:22:37,154 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [837190671] [2025-01-09 17:22:37,154 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 17:22:37,154 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 17:22:37,155 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 17:22:37,158 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 17:22:37,159 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 17:22:37,281 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 73 statements into 1 equivalence classes. [2025-01-09 17:22:37,321 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 73 of 73 statements. [2025-01-09 17:22:37,321 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 17:22:37,321 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 17:22:37,327 INFO L256 TraceCheckSpWp]: Trace formula consists of 254 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-01-09 17:22:37,328 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 17:22:37,346 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2025-01-09 17:22:37,346 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 17:22:37,346 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-01-09 17:22:37,346 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [837190671] [2025-01-09 17:22:37,346 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [837190671] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 17:22:37,346 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 17:22:37,346 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-01-09 17:22:37,347 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2129568783] [2025-01-09 17:22:37,347 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 17:22:37,347 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-09 17:22:37,347 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-01-09 17:22:37,347 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-09 17:22:37,347 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-01-09 17:22:37,347 INFO L87 Difference]: Start difference. First operand 99 states and 133 transitions. Second operand has 4 states, 4 states have (on average 9.5) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2025-01-09 17:22:37,372 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 17:22:37,372 INFO L93 Difference]: Finished difference Result 189 states and 259 transitions. [2025-01-09 17:22:37,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-09 17:22:37,373 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.5) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 73 [2025-01-09 17:22:37,373 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 17:22:37,374 INFO L225 Difference]: With dead ends: 189 [2025-01-09 17:22:37,374 INFO L226 Difference]: Without dead ends: 102 [2025-01-09 17:22:37,375 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 70 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-01-09 17:22:37,375 INFO L435 NwaCegarLoop]: 128 mSDtfsCounter, 1 mSDsluCounter, 250 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 378 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-01-09 17:22:37,375 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 378 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 17:22:37,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102 states. [2025-01-09 17:22:37,384 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102 to 102. [2025-01-09 17:22:37,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 102 states, 66 states have (on average 1.2272727272727273) internal successors, (81), 67 states have internal predecessors, (81), 28 states have call successors, (28), 7 states have call predecessors, (28), 7 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2025-01-09 17:22:37,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 136 transitions. [2025-01-09 17:22:37,385 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 136 transitions. Word has length 73 [2025-01-09 17:22:37,385 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 17:22:37,385 INFO L471 AbstractCegarLoop]: Abstraction has 102 states and 136 transitions. [2025-01-09 17:22:37,385 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.5) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2025-01-09 17:22:37,386 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 136 transitions. [2025-01-09 17:22:37,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2025-01-09 17:22:37,387 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 17:22:37,387 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 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] [2025-01-09 17:22:37,396 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2025-01-09 17:22:37,591 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 17:22:37,591 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 17:22:37,591 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 17:22:37,591 INFO L85 PathProgramCache]: Analyzing trace with hash -1853994644, now seen corresponding path program 1 times [2025-01-09 17:22:37,592 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-01-09 17:22:37,592 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1768869568] [2025-01-09 17:22:37,592 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 17:22:37,592 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 17:22:37,592 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 17:22:37,600 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 17:22:37,601 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 17:22:37,699 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 73 statements into 1 equivalence classes. [2025-01-09 17:22:37,737 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 73 of 73 statements. [2025-01-09 17:22:37,737 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 17:22:37,737 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 17:22:37,741 INFO L256 TraceCheckSpWp]: Trace formula consists of 251 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-01-09 17:22:37,743 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 17:22:37,796 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2025-01-09 17:22:37,797 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 17:22:37,797 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-01-09 17:22:37,797 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1768869568] [2025-01-09 17:22:37,797 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1768869568] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 17:22:37,797 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 17:22:37,797 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-01-09 17:22:37,797 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1310083272] [2025-01-09 17:22:37,797 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 17:22:37,797 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-01-09 17:22:37,797 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-01-09 17:22:37,798 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-01-09 17:22:37,798 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-01-09 17:22:37,798 INFO L87 Difference]: Start difference. First operand 102 states and 136 transitions. Second operand has 6 states, 5 states have (on average 8.2) internal successors, (41), 5 states have internal predecessors, (41), 3 states have call successors, (11), 2 states have call predecessors, (11), 4 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2025-01-09 17:22:37,849 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 17:22:37,849 INFO L93 Difference]: Finished difference Result 194 states and 261 transitions. [2025-01-09 17:22:37,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-01-09 17:22:37,849 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 8.2) internal successors, (41), 5 states have internal predecessors, (41), 3 states have call successors, (11), 2 states have call predecessors, (11), 4 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) Word has length 73 [2025-01-09 17:22:37,849 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 17:22:37,859 INFO L225 Difference]: With dead ends: 194 [2025-01-09 17:22:37,859 INFO L226 Difference]: Without dead ends: 104 [2025-01-09 17:22:37,859 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 68 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-01-09 17:22:37,860 INFO L435 NwaCegarLoop]: 125 mSDtfsCounter, 0 mSDsluCounter, 482 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 607 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-01-09 17:22:37,860 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 607 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 17:22:37,860 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2025-01-09 17:22:37,872 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 104. [2025-01-09 17:22:37,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 104 states, 67 states have (on average 1.2238805970149254) internal successors, (82), 69 states have internal predecessors, (82), 28 states have call successors, (28), 7 states have call predecessors, (28), 8 states have return successors, (29), 27 states have call predecessors, (29), 27 states have call successors, (29) [2025-01-09 17:22:37,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 139 transitions. [2025-01-09 17:22:37,875 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 139 transitions. Word has length 73 [2025-01-09 17:22:37,875 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 17:22:37,875 INFO L471 AbstractCegarLoop]: Abstraction has 104 states and 139 transitions. [2025-01-09 17:22:37,875 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 8.2) internal successors, (41), 5 states have internal predecessors, (41), 3 states have call successors, (11), 2 states have call predecessors, (11), 4 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2025-01-09 17:22:37,875 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 139 transitions. [2025-01-09 17:22:37,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2025-01-09 17:22:37,880 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 17:22:37,880 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 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] [2025-01-09 17:22:37,891 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2025-01-09 17:22:38,080 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 17:22:38,081 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 17:22:38,082 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 17:22:38,082 INFO L85 PathProgramCache]: Analyzing trace with hash 1947264174, now seen corresponding path program 1 times [2025-01-09 17:22:38,082 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-01-09 17:22:38,082 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1379627458] [2025-01-09 17:22:38,082 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 17:22:38,082 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 17:22:38,083 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 17:22:38,084 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-09 17:22:38,086 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2025-01-09 17:22:38,187 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 75 statements into 1 equivalence classes. [2025-01-09 17:22:38,229 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 75 of 75 statements. [2025-01-09 17:22:38,230 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 17:22:38,230 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 17:22:38,233 INFO L256 TraceCheckSpWp]: Trace formula consists of 266 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-01-09 17:22:38,235 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 17:22:38,273 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2025-01-09 17:22:38,273 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 17:22:38,273 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-01-09 17:22:38,273 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1379627458] [2025-01-09 17:22:38,273 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1379627458] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 17:22:38,273 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 17:22:38,273 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-01-09 17:22:38,273 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1469340161] [2025-01-09 17:22:38,273 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 17:22:38,274 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-01-09 17:22:38,274 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-01-09 17:22:38,274 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-01-09 17:22:38,274 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2025-01-09 17:22:38,275 INFO L87 Difference]: Start difference. First operand 104 states and 139 transitions. Second operand has 7 states, 6 states have (on average 7.166666666666667) internal successors, (43), 6 states have internal predecessors, (43), 3 states have call successors, (11), 2 states have call predecessors, (11), 4 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2025-01-09 17:22:38,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 17:22:38,343 INFO L93 Difference]: Finished difference Result 199 states and 268 transitions. [2025-01-09 17:22:38,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-01-09 17:22:38,343 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 7.166666666666667) internal successors, (43), 6 states have internal predecessors, (43), 3 states have call successors, (11), 2 states have call predecessors, (11), 4 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) Word has length 75 [2025-01-09 17:22:38,343 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 17:22:38,344 INFO L225 Difference]: With dead ends: 199 [2025-01-09 17:22:38,344 INFO L226 Difference]: Without dead ends: 107 [2025-01-09 17:22:38,345 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 69 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2025-01-09 17:22:38,345 INFO L435 NwaCegarLoop]: 124 mSDtfsCounter, 0 mSDsluCounter, 599 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 723 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-01-09 17:22:38,345 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 723 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 17:22:38,346 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2025-01-09 17:22:38,354 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 105. [2025-01-09 17:22:38,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 105 states, 68 states have (on average 1.2205882352941178) internal successors, (83), 70 states have internal predecessors, (83), 28 states have call successors, (28), 7 states have call predecessors, (28), 8 states have return successors, (29), 27 states have call predecessors, (29), 27 states have call successors, (29) [2025-01-09 17:22:38,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 140 transitions. [2025-01-09 17:22:38,356 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 140 transitions. Word has length 75 [2025-01-09 17:22:38,356 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 17:22:38,356 INFO L471 AbstractCegarLoop]: Abstraction has 105 states and 140 transitions. [2025-01-09 17:22:38,357 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 7.166666666666667) internal successors, (43), 6 states have internal predecessors, (43), 3 states have call successors, (11), 2 states have call predecessors, (11), 4 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2025-01-09 17:22:38,357 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 140 transitions. [2025-01-09 17:22:38,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2025-01-09 17:22:38,358 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 17:22:38,358 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 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] [2025-01-09 17:22:38,366 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2025-01-09 17:22:38,562 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 17:22:38,562 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 17:22:38,563 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 17:22:38,563 INFO L85 PathProgramCache]: Analyzing trace with hash -824569654, now seen corresponding path program 1 times [2025-01-09 17:22:38,563 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-01-09 17:22:38,563 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1888278686] [2025-01-09 17:22:38,563 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 17:22:38,563 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 17:22:38,564 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 17:22:38,566 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-09 17:22:38,568 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2025-01-09 17:22:38,709 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 77 statements into 1 equivalence classes. [2025-01-09 17:22:38,743 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 77 of 77 statements. [2025-01-09 17:22:38,743 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 17:22:38,743 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 17:22:38,748 INFO L256 TraceCheckSpWp]: Trace formula consists of 272 conjuncts, 8 conjuncts are in the unsatisfiable core [2025-01-09 17:22:38,750 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 17:22:38,842 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2025-01-09 17:22:38,842 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 17:22:38,842 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-01-09 17:22:38,842 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1888278686] [2025-01-09 17:22:38,842 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1888278686] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 17:22:38,842 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 17:22:38,842 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-01-09 17:22:38,842 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [928342416] [2025-01-09 17:22:38,842 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 17:22:38,843 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-01-09 17:22:38,843 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-01-09 17:22:38,843 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-01-09 17:22:38,843 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2025-01-09 17:22:38,844 INFO L87 Difference]: Start difference. First operand 105 states and 140 transitions. Second operand has 7 states, 6 states have (on average 7.0) internal successors, (42), 7 states have internal predecessors, (42), 3 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (9), 2 states have call predecessors, (9), 3 states have call successors, (9) [2025-01-09 17:22:38,924 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 17:22:38,924 INFO L93 Difference]: Finished difference Result 149 states and 190 transitions. [2025-01-09 17:22:38,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-01-09 17:22:38,925 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 7.0) internal successors, (42), 7 states have internal predecessors, (42), 3 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (9), 2 states have call predecessors, (9), 3 states have call successors, (9) Word has length 77 [2025-01-09 17:22:38,925 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 17:22:38,925 INFO L225 Difference]: With dead ends: 149 [2025-01-09 17:22:38,925 INFO L226 Difference]: Without dead ends: 0 [2025-01-09 17:22:38,926 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 71 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2025-01-09 17:22:38,926 INFO L435 NwaCegarLoop]: 44 mSDtfsCounter, 20 mSDsluCounter, 183 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 227 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-01-09 17:22:38,927 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 227 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-01-09 17:22:38,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2025-01-09 17:22:38,927 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2025-01-09 17:22:38,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 17:22:38,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2025-01-09 17:22:38,928 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 77 [2025-01-09 17:22:38,928 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 17:22:38,928 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-01-09 17:22:38,928 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 7.0) internal successors, (42), 7 states have internal predecessors, (42), 3 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (9), 2 states have call predecessors, (9), 3 states have call successors, (9) [2025-01-09 17:22:38,928 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2025-01-09 17:22:38,928 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2025-01-09 17:22:38,930 INFO L782 garLoopResultBuilder]: Registering result SAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2025-01-09 17:22:38,941 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2025-01-09 17:22:39,134 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 17:22:39,136 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2025-01-09 17:22:39,138 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2025-01-09 17:22:39,271 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-01-09 17:22:39,287 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~#list~0!base [2025-01-09 17:22:39,294 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~list!base [2025-01-09 17:22:39,294 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #in~list!base [2025-01-09 17:22:39,294 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.01 05:22:39 BoogieIcfgContainer [2025-01-09 17:22:39,294 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-01-09 17:22:39,295 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-01-09 17:22:39,295 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-01-09 17:22:39,295 INFO L274 PluginConnector]: Witness Printer initialized [2025-01-09 17:22:39,296 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 05:22:36" (3/4) ... [2025-01-09 17:22:39,297 INFO L146 WitnessPrinter]: Generating witness for correct program [2025-01-09 17:22:39,302 INFO L362 RCFGBacktranslator]: Ignoring RootEdge to procedure aws_linked_list_node_next_is_valid [2025-01-09 17:22:39,302 INFO L362 RCFGBacktranslator]: Ignoring RootEdge to procedure nondet_uint64_t [2025-01-09 17:22:39,302 INFO L362 RCFGBacktranslator]: Ignoring RootEdge to procedure aws_linked_list_node_prev_is_valid [2025-01-09 17:22:39,302 INFO L362 RCFGBacktranslator]: Ignoring RootEdge to procedure aws_linked_list_insert_before [2025-01-09 17:22:39,302 INFO L362 RCFGBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2025-01-09 17:22:39,302 INFO L362 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2025-01-09 17:22:39,302 INFO L362 RCFGBacktranslator]: Ignoring RootEdge to procedure aws_linked_list_is_valid [2025-01-09 17:22:39,306 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 24 nodes and edges [2025-01-09 17:22:39,312 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2025-01-09 17:22:39,312 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2025-01-09 17:22:39,312 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2025-01-09 17:22:39,380 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-01-09 17:22:39,381 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.yml [2025-01-09 17:22:39,381 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-01-09 17:22:39,381 INFO L158 Benchmark]: Toolchain (without parser) took 5660.03ms. Allocated memory was 142.6MB in the beginning and 218.1MB in the end (delta: 75.5MB). Free memory was 109.6MB in the beginning and 148.4MB in the end (delta: -38.8MB). Peak memory consumption was 32.2MB. Max. memory is 16.1GB. [2025-01-09 17:22:39,381 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 117.4MB. Free memory is still 82.7MB. There was no memory consumed. Max. memory is 16.1GB. [2025-01-09 17:22:39,382 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1451.47ms. Allocated memory is still 142.6MB. Free memory was 109.4MB in the beginning and 69.9MB in the end (delta: 39.5MB). Peak memory consumption was 87.6MB. Max. memory is 16.1GB. [2025-01-09 17:22:39,382 INFO L158 Benchmark]: Boogie Procedure Inliner took 70.88ms. Allocated memory is still 142.6MB. Free memory was 69.9MB in the beginning and 63.9MB in the end (delta: 6.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-01-09 17:22:39,382 INFO L158 Benchmark]: Boogie Preprocessor took 76.12ms. Allocated memory is still 142.6MB. Free memory was 63.9MB in the beginning and 58.0MB in the end (delta: 5.9MB). There was no memory consumed. Max. memory is 16.1GB. [2025-01-09 17:22:39,382 INFO L158 Benchmark]: RCFGBuilder took 699.10ms. Allocated memory is still 142.6MB. Free memory was 58.0MB in the beginning and 83.2MB in the end (delta: -25.2MB). Peak memory consumption was 33.7MB. Max. memory is 16.1GB. [2025-01-09 17:22:39,382 INFO L158 Benchmark]: TraceAbstraction took 3267.98ms. Allocated memory was 142.6MB in the beginning and 218.1MB in the end (delta: 75.5MB). Free memory was 82.1MB in the beginning and 156.3MB in the end (delta: -74.2MB). Peak memory consumption was 3.1MB. Max. memory is 16.1GB. [2025-01-09 17:22:39,383 INFO L158 Benchmark]: Witness Printer took 85.93ms. Allocated memory is still 218.1MB. Free memory was 156.3MB in the beginning and 148.4MB in the end (delta: 7.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-01-09 17:22:39,384 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22ms. Allocated memory is still 117.4MB. Free memory is still 82.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1451.47ms. Allocated memory is still 142.6MB. Free memory was 109.4MB in the beginning and 69.9MB in the end (delta: 39.5MB). Peak memory consumption was 87.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 70.88ms. Allocated memory is still 142.6MB. Free memory was 69.9MB in the beginning and 63.9MB in the end (delta: 6.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 76.12ms. Allocated memory is still 142.6MB. Free memory was 63.9MB in the beginning and 58.0MB in the end (delta: 5.9MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 699.10ms. Allocated memory is still 142.6MB. Free memory was 58.0MB in the beginning and 83.2MB in the end (delta: -25.2MB). Peak memory consumption was 33.7MB. Max. memory is 16.1GB. * TraceAbstraction took 3267.98ms. Allocated memory was 142.6MB in the beginning and 218.1MB in the end (delta: 75.5MB). Free memory was 82.1MB in the beginning and 156.3MB in the end (delta: -74.2MB). Peak memory consumption was 3.1MB. Max. memory is 16.1GB. * Witness Printer took 85.93ms. Allocated memory is still 218.1MB. Free memory was 156.3MB in the beginning and 148.4MB in the end (delta: 7.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~#list~0!base - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~list!base - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #in~list!base * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 223]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 8 procedures, 102 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 3.1s, OverallIterations: 6, TraceHistogramMax: 5, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 22 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 22 mSDsluCounter, 2447 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1762 mSDsCounter, 7 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 185 IncrementalHoareTripleChecker+Invalid, 192 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 7 mSolverCounterUnsat, 685 mSDtfsCounter, 185 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 440 GetRequests, 420 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=105occurred in iteration=5, InterpolantAutomatonStates: 31, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 6 MinimizatonAttempts, 3 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 444 NumberOfCodeBlocks, 444 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 438 ConstructedInterpolants, 0 QuantifiedInterpolants, 521 SizeOfPredicates, 2 NumberOfNonLiveVariables, 1557 ConjunctsInSsa, 26 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 282/282 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2025-01-09 17:22:39,402 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE