./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/aws-c-common/aws_array_list_back_harness_negated.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 551b0097 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/aws-c-common/aws_array_list_back_harness_negated.i -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 5d9c9690ebf4d597a96d56bea07230a5398e6c36b9eab0d2fba1dbd8091088b4 --- Real Ultimate output --- This is Ultimate 0.3.0-?-551b009-m [2025-01-09 16:53:10,977 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-01-09 16:53:11,037 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2025-01-09 16:53:11,041 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-01-09 16:53:11,041 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-01-09 16:53:11,054 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-01-09 16:53:11,054 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-01-09 16:53:11,054 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-01-09 16:53:11,055 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-01-09 16:53:11,055 INFO L153 SettingsManager]: * Use memory slicer=true [2025-01-09 16:53:11,055 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-01-09 16:53:11,055 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-01-09 16:53:11,055 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-01-09 16:53:11,055 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-01-09 16:53:11,055 INFO L153 SettingsManager]: * Use SBE=true [2025-01-09 16:53:11,055 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-01-09 16:53:11,055 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-01-09 16:53:11,055 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-01-09 16:53:11,055 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-01-09 16:53:11,056 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-01-09 16:53:11,056 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-01-09 16:53:11,056 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-01-09 16:53:11,056 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-01-09 16:53:11,056 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-01-09 16:53:11,056 INFO L153 SettingsManager]: * Use constant arrays=true [2025-01-09 16:53:11,056 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-01-09 16:53:11,056 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 16:53:11,056 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-09 16:53:11,056 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 16:53:11,056 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 16:53:11,056 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-01-09 16:53:11,056 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 16:53:11,056 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-09 16:53:11,056 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 16:53:11,056 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 16:53:11,056 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-01-09 16:53:11,056 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-01-09 16:53:11,056 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-01-09 16:53:11,056 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-01-09 16:53:11,057 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-01-09 16:53:11,057 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-01-09 16:53:11,057 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-01-09 16:53:11,057 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-01-09 16:53:11,057 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-01-09 16:53:11,057 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-01-09 16:53:11,057 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 -> 5d9c9690ebf4d597a96d56bea07230a5398e6c36b9eab0d2fba1dbd8091088b4 [2025-01-09 16:53:11,248 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-01-09 16:53:11,261 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-01-09 16:53:11,262 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-01-09 16:53:11,263 INFO L270 PluginConnector]: Initializing CDTParser... [2025-01-09 16:53:11,263 INFO L274 PluginConnector]: CDTParser initialized [2025-01-09 16:53:11,265 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_array_list_back_harness_negated.i [2025-01-09 16:53:12,420 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/50c89f3ef/b30f7a45126a4ad1ba413de80e0c8678/FLAGf296687ee [2025-01-09 16:53:12,859 INFO L384 CDTParser]: Found 1 translation units. [2025-01-09 16:53:12,859 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_array_list_back_harness_negated.i [2025-01-09 16:53:12,888 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/50c89f3ef/b30f7a45126a4ad1ba413de80e0c8678/FLAGf296687ee [2025-01-09 16:53:12,902 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/50c89f3ef/b30f7a45126a4ad1ba413de80e0c8678 [2025-01-09 16:53:12,903 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-01-09 16:53:12,905 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-01-09 16:53:12,906 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-01-09 16:53:12,906 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-01-09 16:53:12,908 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-01-09 16:53:12,909 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 04:53:12" (1/1) ... [2025-01-09 16:53:12,909 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@20f2fea6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 04:53:12, skipping insertion in model container [2025-01-09 16:53:12,910 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 04:53:12" (1/1) ... [2025-01-09 16:53:12,972 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-01-09 16:53:13,162 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_array_list_back_harness_negated.i[4493,4506] [2025-01-09 16:53:13,169 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_array_list_back_harness_negated.i[4553,4566] [2025-01-09 16:53:13,583 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 16:53:13,584 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 16:53:13,584 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 16:53:13,584 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 16:53:13,585 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 16:53:13,600 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 16:53:13,601 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 16:53:13,603 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 16:53:13,603 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 16:53:13,604 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 16:53:13,605 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 16:53:13,605 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 16:53:13,606 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 16:53:13,919 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 16:53:13,925 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 16:53:13,956 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 16:53:13,985 INFO L200 MainTranslator]: Completed pre-run [2025-01-09 16:53:13,996 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_array_list_back_harness_negated.i[4493,4506] [2025-01-09 16:53:14,000 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_array_list_back_harness_negated.i[4553,4566] [2025-01-09 16:53:14,055 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 16:53:14,056 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 16:53:14,057 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 16:53:14,058 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 16:53:14,058 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 16:53:14,064 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 16:53:14,066 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 16:53:14,066 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 16:53:14,067 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 16:53:14,067 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 16:53:14,068 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 16:53:14,068 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 16:53:14,068 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 16:53:14,149 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 16:53:14,153 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 16:53:14,156 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [7737-7748] [2025-01-09 16:53:14,171 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 16:53:14,307 INFO L204 MainTranslator]: Completed translation [2025-01-09 16:53:14,308 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 04:53:14 WrapperNode [2025-01-09 16:53:14,309 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-01-09 16:53:14,309 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-01-09 16:53:14,309 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-01-09 16:53:14,309 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-01-09 16:53:14,313 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 04:53:14" (1/1) ... [2025-01-09 16:53:14,359 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 04:53:14" (1/1) ... [2025-01-09 16:53:14,406 INFO L138 Inliner]: procedures = 680, calls = 1678, calls flagged for inlining = 52, calls inlined = 8, statements flattened = 656 [2025-01-09 16:53:14,410 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-01-09 16:53:14,410 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-01-09 16:53:14,410 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-01-09 16:53:14,410 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-01-09 16:53:14,421 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 04:53:14" (1/1) ... [2025-01-09 16:53:14,421 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 04:53:14" (1/1) ... [2025-01-09 16:53:14,427 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 04:53:14" (1/1) ... [2025-01-09 16:53:14,466 INFO L175 MemorySlicer]: Split 313 memory accesses to 6 slices as follows [9, 238, 2, 6, 3, 55]. 76 percent of accesses are in the largest equivalence class. The 24 initializations are split as follows [5, 6, 2, 0, 1, 10]. The 239 writes are split as follows [1, 232, 0, 2, 1, 3]. [2025-01-09 16:53:14,466 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 04:53:14" (1/1) ... [2025-01-09 16:53:14,466 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 04:53:14" (1/1) ... [2025-01-09 16:53:14,488 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 04:53:14" (1/1) ... [2025-01-09 16:53:14,489 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 04:53:14" (1/1) ... [2025-01-09 16:53:14,496 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 04:53:14" (1/1) ... [2025-01-09 16:53:14,499 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 04:53:14" (1/1) ... [2025-01-09 16:53:14,501 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 04:53:14" (1/1) ... [2025-01-09 16:53:14,506 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-01-09 16:53:14,507 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-01-09 16:53:14,507 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-01-09 16:53:14,507 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-01-09 16:53:14,508 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 04:53:14" (1/1) ... [2025-01-09 16:53:14,511 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 16:53:14,525 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 16:53:14,541 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 16:53:14,545 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 16:53:14,565 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-01-09 16:53:14,565 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_bounded [2025-01-09 16:53:14,565 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_bounded [2025-01-09 16:53:14,565 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_valid [2025-01-09 16:53:14,565 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_valid [2025-01-09 16:53:14,565 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2025-01-09 16:53:14,565 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2025-01-09 16:53:14,565 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2025-01-09 16:53:14,565 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2025-01-09 16:53:14,565 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2025-01-09 16:53:14,566 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2025-01-09 16:53:14,566 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2025-01-09 16:53:14,566 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2025-01-09 16:53:14,566 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-01-09 16:53:14,567 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-01-09 16:53:14,567 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2025-01-09 16:53:14,567 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2025-01-09 16:53:14,567 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2025-01-09 16:53:14,567 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2025-01-09 16:53:14,567 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2025-01-09 16:53:14,567 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2025-01-09 16:53:14,567 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2025-01-09 16:53:14,567 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2025-01-09 16:53:14,568 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-01-09 16:53:14,568 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-01-09 16:53:14,568 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2025-01-09 16:53:14,568 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2025-01-09 16:53:14,568 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2025-01-09 16:53:14,568 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2025-01-09 16:53:14,568 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2025-01-09 16:53:14,568 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2025-01-09 16:53:14,568 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_impl [2025-01-09 16:53:14,568 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_impl [2025-01-09 16:53:14,568 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-01-09 16:53:14,568 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-01-09 16:53:14,568 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2025-01-09 16:53:14,568 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2025-01-09 16:53:14,568 INFO L130 BoogieDeclarations]: Found specification of procedure assert_byte_from_buffer_matches [2025-01-09 16:53:14,569 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_byte_from_buffer_matches [2025-01-09 16:53:14,569 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_size_t [2025-01-09 16:53:14,570 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_size_t [2025-01-09 16:53:14,570 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2025-01-09 16:53:14,570 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2025-01-09 16:53:14,570 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2025-01-09 16:53:14,570 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2025-01-09 16:53:14,570 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2025-01-09 16:53:14,570 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2025-01-09 16:53:14,570 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2025-01-09 16:53:14,570 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2025-01-09 16:53:14,570 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_malloc [2025-01-09 16:53:14,571 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_malloc [2025-01-09 16:53:14,571 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_length [2025-01-09 16:53:14,571 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_length [2025-01-09 16:53:14,571 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2025-01-09 16:53:14,571 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2025-01-09 16:53:14,571 INFO L130 BoogieDeclarations]: Found specification of procedure my_memcpy [2025-01-09 16:53:14,571 INFO L138 BoogieDeclarations]: Found implementation of procedure my_memcpy [2025-01-09 16:53:14,571 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-01-09 16:53:14,571 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2025-01-09 16:53:14,571 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2025-01-09 16:53:14,571 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2025-01-09 16:53:14,571 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2025-01-09 16:53:14,571 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2025-01-09 16:53:14,571 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2025-01-09 16:53:14,571 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2025-01-09 16:53:14,571 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2025-01-09 16:53:14,571 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2025-01-09 16:53:14,571 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2025-01-09 16:53:14,571 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2025-01-09 16:53:14,571 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2025-01-09 16:53:14,571 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2025-01-09 16:53:14,571 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2025-01-09 16:53:14,571 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2025-01-09 16:53:14,571 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2025-01-09 16:53:14,571 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-01-09 16:53:14,571 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-01-09 16:53:14,571 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2025-01-09 16:53:14,571 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2025-01-09 16:53:14,571 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2025-01-09 16:53:14,571 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2025-01-09 16:53:14,571 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_array_list_has_allocated_data_member [2025-01-09 16:53:14,571 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_array_list_has_allocated_data_member [2025-01-09 16:53:14,571 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-01-09 16:53:14,571 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-01-09 16:53:14,572 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-01-09 16:53:14,572 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2025-01-09 16:53:14,572 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2025-01-09 16:53:14,572 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2025-01-09 16:53:14,806 INFO L234 CfgBuilder]: Building ICFG [2025-01-09 16:53:14,809 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-01-09 16:53:20,781 INFO L? ?]: Removed 125 outVars from TransFormulas that were not future-live. [2025-01-09 16:53:20,782 INFO L283 CfgBuilder]: Performing block encoding [2025-01-09 16:53:20,792 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-01-09 16:53:20,793 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2025-01-09 16:53:20,793 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 04:53:20 BoogieIcfgContainer [2025-01-09 16:53:20,793 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-01-09 16:53:20,795 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-01-09 16:53:20,795 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-01-09 16:53:20,799 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-01-09 16:53:20,800 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.01 04:53:12" (1/3) ... [2025-01-09 16:53:20,800 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6730fd53 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 04:53:20, skipping insertion in model container [2025-01-09 16:53:20,800 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 04:53:14" (2/3) ... [2025-01-09 16:53:20,800 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6730fd53 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 04:53:20, skipping insertion in model container [2025-01-09 16:53:20,801 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 04:53:20" (3/3) ... [2025-01-09 16:53:20,802 INFO L128 eAbstractionObserver]: Analyzing ICFG aws_array_list_back_harness_negated.i [2025-01-09 16:53:20,813 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-01-09 16:53:20,815 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG aws_array_list_back_harness_negated.i that has 18 procedures, 184 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2025-01-09 16:53:20,856 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-01-09 16:53:20,865 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;@1dddf002, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-01-09 16:53:20,866 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-01-09 16:53:20,869 INFO L276 IsEmpty]: Start isEmpty. Operand has 184 states, 110 states have (on average 1.2) internal successors, (132), 111 states have internal predecessors, (132), 55 states have call successors, (55), 17 states have call predecessors, (55), 17 states have return successors, (55), 55 states have call predecessors, (55), 55 states have call successors, (55) [2025-01-09 16:53:20,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2025-01-09 16:53:20,880 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 16:53:20,880 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:53:20,881 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 16:53:20,884 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 16:53:20,884 INFO L85 PathProgramCache]: Analyzing trace with hash 1246188087, now seen corresponding path program 1 times [2025-01-09 16:53:20,890 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 16:53:20,890 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [446975300] [2025-01-09 16:53:20,890 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 16:53:20,891 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 16:53:25,120 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 129 statements into 1 equivalence classes. [2025-01-09 16:53:25,403 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 129 of 129 statements. [2025-01-09 16:53:25,404 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 16:53:25,404 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 16:53:25,781 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 202 trivial. 0 not checked. [2025-01-09 16:53:25,781 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 16:53:25,782 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [446975300] [2025-01-09 16:53:25,782 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [446975300] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 16:53:25,784 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [520522055] [2025-01-09 16:53:25,784 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 16:53:25,784 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 16:53:25,784 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 16:53:25,786 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 16:53:25,787 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 16:53:29,878 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 129 statements into 1 equivalence classes. [2025-01-09 16:53:30,349 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 129 of 129 statements. [2025-01-09 16:53:30,350 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 16:53:30,350 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 16:53:30,366 INFO L256 TraceCheckSpWp]: Trace formula consists of 4262 conjuncts, 1 conjuncts are in the unsatisfiable core [2025-01-09 16:53:30,374 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 16:53:30,388 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 202 trivial. 0 not checked. [2025-01-09 16:53:30,388 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 16:53:30,388 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [520522055] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 16:53:30,388 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-09 16:53:30,388 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2025-01-09 16:53:30,389 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [944690502] [2025-01-09 16:53:30,390 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 16:53:30,392 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-01-09 16:53:30,392 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 16:53:30,403 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-01-09 16:53:30,404 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-01-09 16:53:30,405 INFO L87 Difference]: Start difference. First operand has 184 states, 110 states have (on average 1.2) internal successors, (132), 111 states have internal predecessors, (132), 55 states have call successors, (55), 17 states have call predecessors, (55), 17 states have return successors, (55), 55 states have call predecessors, (55), 55 states have call successors, (55) Second operand has 2 states, 2 states have (on average 24.0) internal successors, (48), 2 states have internal predecessors, (48), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2025-01-09 16:53:30,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 16:53:30,438 INFO L93 Difference]: Finished difference Result 361 states and 512 transitions. [2025-01-09 16:53:30,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-09 16:53:30,439 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 24.0) internal successors, (48), 2 states have internal predecessors, (48), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 129 [2025-01-09 16:53:30,439 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 16:53:30,450 INFO L225 Difference]: With dead ends: 361 [2025-01-09 16:53:30,450 INFO L226 Difference]: Without dead ends: 175 [2025-01-09 16:53:30,455 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 130 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 16:53:30,458 INFO L435 NwaCegarLoop]: 240 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, 240 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 16:53:30,460 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 240 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 16:53:30,470 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 175 states. [2025-01-09 16:53:30,495 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 175 to 175. [2025-01-09 16:53:30,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 175 states, 103 states have (on average 1.1650485436893203) internal successors, (120), 104 states have internal predecessors, (120), 55 states have call successors, (55), 17 states have call predecessors, (55), 16 states have return successors, (53), 53 states have call predecessors, (53), 53 states have call successors, (53) [2025-01-09 16:53:30,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 175 states to 175 states and 228 transitions. [2025-01-09 16:53:30,505 INFO L78 Accepts]: Start accepts. Automaton has 175 states and 228 transitions. Word has length 129 [2025-01-09 16:53:30,506 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 16:53:30,506 INFO L471 AbstractCegarLoop]: Abstraction has 175 states and 228 transitions. [2025-01-09 16:53:30,507 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 24.0) internal successors, (48), 2 states have internal predecessors, (48), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2025-01-09 16:53:30,508 INFO L276 IsEmpty]: Start isEmpty. Operand 175 states and 228 transitions. [2025-01-09 16:53:30,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2025-01-09 16:53:30,512 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 16:53:30,512 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:53:30,530 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 16:53:30,713 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 16:53:30,713 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 16:53:30,714 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 16:53:30,715 INFO L85 PathProgramCache]: Analyzing trace with hash 1305218107, now seen corresponding path program 1 times [2025-01-09 16:53:30,715 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 16:53:30,715 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1849378886] [2025-01-09 16:53:30,715 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 16:53:30,715 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 16:53:34,519 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 129 statements into 1 equivalence classes. [2025-01-09 16:53:34,607 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 129 of 129 statements. [2025-01-09 16:53:34,608 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 16:53:34,608 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 16:53:35,388 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 208 trivial. 0 not checked. [2025-01-09 16:53:35,390 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 16:53:35,390 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1849378886] [2025-01-09 16:53:35,390 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1849378886] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 16:53:35,390 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1767122487] [2025-01-09 16:53:35,390 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 16:53:35,390 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 16:53:35,390 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 16:53:35,392 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 16:53:35,394 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 16:53:39,445 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 129 statements into 1 equivalence classes. [2025-01-09 16:53:39,851 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 129 of 129 statements. [2025-01-09 16:53:39,851 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 16:53:39,851 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 16:53:39,869 INFO L256 TraceCheckSpWp]: Trace formula consists of 4262 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-01-09 16:53:39,875 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 16:53:40,503 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 80 proven. 0 refuted. 0 times theorem prover too weak. 140 trivial. 0 not checked. [2025-01-09 16:53:40,506 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 16:53:40,506 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1767122487] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 16:53:40,506 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-09 16:53:40,506 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [5] total 9 [2025-01-09 16:53:40,507 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [68818141] [2025-01-09 16:53:40,507 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 16:53:40,507 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-01-09 16:53:40,507 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 16:53:40,508 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-01-09 16:53:40,508 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2025-01-09 16:53:40,508 INFO L87 Difference]: Start difference. First operand 175 states and 228 transitions. Second operand has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 6 states have internal predecessors, (52), 3 states have call successors, (23), 2 states have call predecessors, (23), 3 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) [2025-01-09 16:53:42,915 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 16:53:42,915 INFO L93 Difference]: Finished difference Result 323 states and 427 transitions. [2025-01-09 16:53:42,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-01-09 16:53:42,916 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 6 states have internal predecessors, (52), 3 states have call successors, (23), 2 states have call predecessors, (23), 3 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) Word has length 129 [2025-01-09 16:53:42,917 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 16:53:42,919 INFO L225 Difference]: With dead ends: 323 [2025-01-09 16:53:42,921 INFO L226 Difference]: Without dead ends: 177 [2025-01-09 16:53:42,923 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 136 GetRequests, 126 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2025-01-09 16:53:42,924 INFO L435 NwaCegarLoop]: 176 mSDtfsCounter, 240 mSDsluCounter, 474 mSDsCounter, 0 mSdLazyCounter, 177 mSolverCounterSat, 74 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 242 SdHoareTripleChecker+Valid, 650 SdHoareTripleChecker+Invalid, 251 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 74 IncrementalHoareTripleChecker+Valid, 177 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2025-01-09 16:53:42,925 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [242 Valid, 650 Invalid, 251 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [74 Valid, 177 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2025-01-09 16:53:42,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 177 states. [2025-01-09 16:53:42,938 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 177 to 177. [2025-01-09 16:53:42,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 177 states, 104 states have (on average 1.1634615384615385) internal successors, (121), 106 states have internal predecessors, (121), 55 states have call successors, (55), 17 states have call predecessors, (55), 17 states have return successors, (58), 53 states have call predecessors, (58), 53 states have call successors, (58) [2025-01-09 16:53:42,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177 states to 177 states and 234 transitions. [2025-01-09 16:53:42,944 INFO L78 Accepts]: Start accepts. Automaton has 177 states and 234 transitions. Word has length 129 [2025-01-09 16:53:42,944 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 16:53:42,944 INFO L471 AbstractCegarLoop]: Abstraction has 177 states and 234 transitions. [2025-01-09 16:53:42,947 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 6 states have internal predecessors, (52), 3 states have call successors, (23), 2 states have call predecessors, (23), 3 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) [2025-01-09 16:53:42,947 INFO L276 IsEmpty]: Start isEmpty. Operand 177 states and 234 transitions. [2025-01-09 16:53:42,948 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2025-01-09 16:53:42,948 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 16:53:42,948 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 5, 5, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 16:53:42,966 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 16:53:43,149 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 16:53:43,150 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 16:53:43,150 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 16:53:43,151 INFO L85 PathProgramCache]: Analyzing trace with hash 1899998583, now seen corresponding path program 1 times [2025-01-09 16:53:43,151 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 16:53:43,152 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1609728265] [2025-01-09 16:53:43,152 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 16:53:43,152 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 16:53:47,096 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 159 statements into 1 equivalence classes. [2025-01-09 16:53:47,239 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 159 of 159 statements. [2025-01-09 16:53:47,239 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 16:53:47,239 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 16:53:48,324 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 223 trivial. 0 not checked. [2025-01-09 16:53:48,325 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 16:53:48,325 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1609728265] [2025-01-09 16:53:48,325 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1609728265] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 16:53:48,325 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [40279870] [2025-01-09 16:53:48,325 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 16:53:48,325 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 16:53:48,325 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 16:53:48,327 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 16:53:48,330 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 16:53:52,429 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 159 statements into 1 equivalence classes. [2025-01-09 16:53:52,848 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 159 of 159 statements. [2025-01-09 16:53:52,849 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 16:53:52,849 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 16:53:52,866 INFO L256 TraceCheckSpWp]: Trace formula consists of 4516 conjuncts, 7 conjuncts are in the unsatisfiable core [2025-01-09 16:53:52,872 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 16:53:54,080 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 126 proven. 0 refuted. 0 times theorem prover too weak. 109 trivial. 0 not checked. [2025-01-09 16:53:54,080 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 16:53:54,081 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [40279870] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 16:53:54,081 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-09 16:53:54,081 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [6] total 11 [2025-01-09 16:53:54,081 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1514397601] [2025-01-09 16:53:54,081 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 16:53:54,081 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-01-09 16:53:54,081 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 16:53:54,082 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-01-09 16:53:54,082 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2025-01-09 16:53:54,082 INFO L87 Difference]: Start difference. First operand 177 states and 234 transitions. Second operand has 7 states, 6 states have (on average 11.0) internal successors, (66), 7 states have internal predecessors, (66), 4 states have call successors, (25), 2 states have call predecessors, (25), 3 states have return successors, (23), 3 states have call predecessors, (23), 4 states have call successors, (23) [2025-01-09 16:53:56,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 16:53:56,932 INFO L93 Difference]: Finished difference Result 285 states and 377 transitions. [2025-01-09 16:53:56,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-01-09 16:53:56,932 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 11.0) internal successors, (66), 7 states have internal predecessors, (66), 4 states have call successors, (25), 2 states have call predecessors, (25), 3 states have return successors, (23), 3 states have call predecessors, (23), 4 states have call successors, (23) Word has length 159 [2025-01-09 16:53:56,933 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 16:53:56,934 INFO L225 Difference]: With dead ends: 285 [2025-01-09 16:53:56,935 INFO L226 Difference]: Without dead ends: 177 [2025-01-09 16:53:56,936 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 170 GetRequests, 157 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=44, Invalid=166, Unknown=0, NotChecked=0, Total=210 [2025-01-09 16:53:56,936 INFO L435 NwaCegarLoop]: 173 mSDtfsCounter, 243 mSDsluCounter, 632 mSDsCounter, 0 mSdLazyCounter, 227 mSolverCounterSat, 71 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 245 SdHoareTripleChecker+Valid, 805 SdHoareTripleChecker+Invalid, 298 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 71 IncrementalHoareTripleChecker+Valid, 227 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2025-01-09 16:53:56,938 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [245 Valid, 805 Invalid, 298 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [71 Valid, 227 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2025-01-09 16:53:56,938 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 177 states. [2025-01-09 16:53:56,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 177 to 177. [2025-01-09 16:53:56,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 177 states, 104 states have (on average 1.1634615384615385) internal successors, (121), 106 states have internal predecessors, (121), 55 states have call successors, (55), 17 states have call predecessors, (55), 17 states have return successors, (55), 53 states have call predecessors, (55), 53 states have call successors, (55) [2025-01-09 16:53:56,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177 states to 177 states and 231 transitions. [2025-01-09 16:53:56,956 INFO L78 Accepts]: Start accepts. Automaton has 177 states and 231 transitions. Word has length 159 [2025-01-09 16:53:56,957 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 16:53:56,957 INFO L471 AbstractCegarLoop]: Abstraction has 177 states and 231 transitions. [2025-01-09 16:53:56,958 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 11.0) internal successors, (66), 7 states have internal predecessors, (66), 4 states have call successors, (25), 2 states have call predecessors, (25), 3 states have return successors, (23), 3 states have call predecessors, (23), 4 states have call successors, (23) [2025-01-09 16:53:56,958 INFO L276 IsEmpty]: Start isEmpty. Operand 177 states and 231 transitions. [2025-01-09 16:53:56,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2025-01-09 16:53:56,961 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 16:53:56,961 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 16:53:56,977 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2025-01-09 16:53:57,165 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 16:53:57,165 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 16:53:57,165 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 16:53:57,165 INFO L85 PathProgramCache]: Analyzing trace with hash 1604370351, now seen corresponding path program 2 times [2025-01-09 16:53:57,165 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 16:53:57,165 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [694641488] [2025-01-09 16:53:57,166 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-01-09 16:53:57,166 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 16:54:00,716 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 174 statements into 2 equivalence classes. [2025-01-09 16:54:00,790 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 21 of 174 statements. [2025-01-09 16:54:00,790 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-01-09 16:54:00,790 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 16:54:02,356 INFO L134 CoverageAnalysis]: Checked inductivity of 265 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 257 trivial. 0 not checked. [2025-01-09 16:54:02,356 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 16:54:02,356 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [694641488] [2025-01-09 16:54:02,356 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [694641488] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 16:54:02,356 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 16:54:02,357 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-01-09 16:54:02,357 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [110282778] [2025-01-09 16:54:02,358 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 16:54:02,359 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-01-09 16:54:02,359 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 16:54:02,359 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-01-09 16:54:02,359 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-01-09 16:54:02,360 INFO L87 Difference]: Start difference. First operand 177 states and 231 transitions. Second operand has 6 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (23), 2 states have call predecessors, (23), 1 states have call successors, (23) [2025-01-09 16:54:02,770 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 16:54:02,771 INFO L93 Difference]: Finished difference Result 185 states and 239 transitions. [2025-01-09 16:54:02,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-01-09 16:54:02,771 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (23), 2 states have call predecessors, (23), 1 states have call successors, (23) Word has length 174 [2025-01-09 16:54:02,773 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 16:54:02,774 INFO L225 Difference]: With dead ends: 185 [2025-01-09 16:54:02,775 INFO L226 Difference]: Without dead ends: 183 [2025-01-09 16:54:02,775 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2025-01-09 16:54:02,778 INFO L435 NwaCegarLoop]: 225 mSDtfsCounter, 3 mSDsluCounter, 886 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 1111 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-01-09 16:54:02,779 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 1111 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-01-09 16:54:02,779 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 183 states. [2025-01-09 16:54:02,788 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 183 to 182. [2025-01-09 16:54:02,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 182 states, 107 states have (on average 1.158878504672897) internal successors, (124), 109 states have internal predecessors, (124), 56 states have call successors, (56), 18 states have call predecessors, (56), 18 states have return successors, (56), 54 states have call predecessors, (56), 54 states have call successors, (56) [2025-01-09 16:54:02,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 236 transitions. [2025-01-09 16:54:02,790 INFO L78 Accepts]: Start accepts. Automaton has 182 states and 236 transitions. Word has length 174 [2025-01-09 16:54:02,790 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 16:54:02,790 INFO L471 AbstractCegarLoop]: Abstraction has 182 states and 236 transitions. [2025-01-09 16:54:02,790 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (23), 2 states have call predecessors, (23), 1 states have call successors, (23) [2025-01-09 16:54:02,790 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 236 transitions. [2025-01-09 16:54:02,791 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2025-01-09 16:54:02,792 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 16:54:02,792 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:54:02,792 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-01-09 16:54:02,792 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 16:54:02,792 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 16:54:02,792 INFO L85 PathProgramCache]: Analyzing trace with hash -1393478333, now seen corresponding path program 3 times [2025-01-09 16:54:02,792 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 16:54:02,792 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [374556448] [2025-01-09 16:54:02,793 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-01-09 16:54:02,793 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 16:54:06,306 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 189 statements into 10 equivalence classes. [2025-01-09 16:54:07,132 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) and asserted 47 of 189 statements. [2025-01-09 16:54:07,132 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2025-01-09 16:54:07,132 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 16:54:08,682 INFO L134 CoverageAnalysis]: Checked inductivity of 310 backedges. 33 proven. 2 refuted. 0 times theorem prover too weak. 275 trivial. 0 not checked. [2025-01-09 16:54:08,683 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 16:54:08,683 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [374556448] [2025-01-09 16:54:08,683 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [374556448] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 16:54:08,683 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [884857171] [2025-01-09 16:54:08,683 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-01-09 16:54:08,683 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 16:54:08,683 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 16:54:08,690 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 16:54:08,691 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 16:54:12,937 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 189 statements into 10 equivalence classes.