./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/aws-c-common/aws_array_list_copy_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_copy_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 222962222638f0fcfd5888fac8242f8ce08239110602155fe31bfd0578d28673 --- Real Ultimate output --- This is Ultimate 0.3.0-?-551b009-m [2025-01-09 16:54:34,363 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-01-09 16:54:34,417 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2025-01-09 16:54:34,423 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-01-09 16:54:34,423 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-01-09 16:54:34,441 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-01-09 16:54:34,442 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-01-09 16:54:34,442 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-01-09 16:54:34,443 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-01-09 16:54:34,443 INFO L153 SettingsManager]: * Use memory slicer=true [2025-01-09 16:54:34,443 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-01-09 16:54:34,444 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-01-09 16:54:34,444 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-01-09 16:54:34,445 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-01-09 16:54:34,445 INFO L153 SettingsManager]: * Use SBE=true [2025-01-09 16:54:34,445 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-01-09 16:54:34,445 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-01-09 16:54:34,445 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-01-09 16:54:34,445 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-01-09 16:54:34,445 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-01-09 16:54:34,445 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-01-09 16:54:34,445 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-01-09 16:54:34,445 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-01-09 16:54:34,445 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-01-09 16:54:34,445 INFO L153 SettingsManager]: * Use constant arrays=true [2025-01-09 16:54:34,445 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-01-09 16:54:34,445 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 16:54:34,445 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-09 16:54:34,445 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 16:54:34,445 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 16:54:34,445 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-01-09 16:54:34,445 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 16:54:34,445 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-09 16:54:34,445 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 16:54:34,446 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 16:54:34,446 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-01-09 16:54:34,446 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-01-09 16:54:34,446 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-01-09 16:54:34,446 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-01-09 16:54:34,446 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-01-09 16:54:34,446 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-01-09 16:54:34,446 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-01-09 16:54:34,446 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-01-09 16:54:34,446 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-01-09 16:54:34,446 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-01-09 16:54:34,446 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 -> 222962222638f0fcfd5888fac8242f8ce08239110602155fe31bfd0578d28673 [2025-01-09 16:54:34,679 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-01-09 16:54:34,689 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-01-09 16:54:34,692 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-01-09 16:54:34,693 INFO L270 PluginConnector]: Initializing CDTParser... [2025-01-09 16:54:34,693 INFO L274 PluginConnector]: CDTParser initialized [2025-01-09 16:54:34,695 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_array_list_copy_harness_negated.i [2025-01-09 16:54:35,858 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/3af0add61/202815abe4e34f1ca39630c1547a9d4f/FLAG888d7424f [2025-01-09 16:54:36,369 INFO L384 CDTParser]: Found 1 translation units. [2025-01-09 16:54:36,371 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_array_list_copy_harness_negated.i [2025-01-09 16:54:36,409 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/3af0add61/202815abe4e34f1ca39630c1547a9d4f/FLAG888d7424f [2025-01-09 16:54:36,453 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/3af0add61/202815abe4e34f1ca39630c1547a9d4f [2025-01-09 16:54:36,455 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-01-09 16:54:36,456 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-01-09 16:54:36,457 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-01-09 16:54:36,457 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-01-09 16:54:36,460 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-01-09 16:54:36,461 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 04:54:36" (1/1) ... [2025-01-09 16:54:36,461 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1563d38 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 04:54:36, skipping insertion in model container [2025-01-09 16:54:36,462 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 04:54:36" (1/1) ... [2025-01-09 16:54:36,518 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-01-09 16:54:36,720 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_copy_harness_negated.i[4493,4506] [2025-01-09 16:54:36,728 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_copy_harness_negated.i[4553,4566] [2025-01-09 16:54:37,261 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 16:54:37,261 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 16:54:37,262 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 16:54:37,262 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 16:54:37,263 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 16:54:37,274 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 16:54:37,275 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 16:54:37,276 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 16:54:37,276 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 16:54:37,278 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 16:54:37,278 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 16:54:37,278 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 16:54:37,279 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 16:54:37,637 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 16:54:37,637 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 16:54:37,643 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 16:54:37,647 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 16:54:37,685 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 16:54:37,715 INFO L200 MainTranslator]: Completed pre-run [2025-01-09 16:54:37,724 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_copy_harness_negated.i[4493,4506] [2025-01-09 16:54:37,725 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_copy_harness_negated.i[4553,4566] [2025-01-09 16:54:37,773 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 16:54:37,775 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 16:54:37,775 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 16:54:37,775 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 16:54:37,776 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 16:54:37,784 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 16:54:37,785 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 16:54:37,786 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 16:54:37,787 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 16:54:37,787 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 16:54:37,788 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 16:54:37,788 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 16:54:37,788 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 16:54:37,903 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 16:54:37,903 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 16:54:37,904 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 16:54:37,911 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 16:54:37,915 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [7743-7754] [2025-01-09 16:54:37,934 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 16:54:38,059 INFO L204 MainTranslator]: Completed translation [2025-01-09 16:54:38,060 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 04:54:38 WrapperNode [2025-01-09 16:54:38,060 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-01-09 16:54:38,061 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-01-09 16:54:38,061 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-01-09 16:54:38,061 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-01-09 16:54:38,065 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 04:54:38" (1/1) ... [2025-01-09 16:54:38,107 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 04:54:38" (1/1) ... [2025-01-09 16:54:38,145 INFO L138 Inliner]: procedures = 680, calls = 1678, calls flagged for inlining = 52, calls inlined = 7, statements flattened = 718 [2025-01-09 16:54:38,145 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-01-09 16:54:38,146 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-01-09 16:54:38,146 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-01-09 16:54:38,146 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-01-09 16:54:38,153 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 04:54:38" (1/1) ... [2025-01-09 16:54:38,153 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 04:54:38" (1/1) ... [2025-01-09 16:54:38,158 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 04:54:38" (1/1) ... [2025-01-09 16:54:38,215 INFO L175 MemorySlicer]: Split 313 memory accesses to 5 slices as follows [238, 2, 9, 57, 7]. 76 percent of accesses are in the largest equivalence class. The 24 initializations are split as follows [6, 2, 1, 10, 5]. The 241 writes are split as follows [232, 0, 1, 7, 1]. [2025-01-09 16:54:38,217 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 04:54:38" (1/1) ... [2025-01-09 16:54:38,217 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 04:54:38" (1/1) ... [2025-01-09 16:54:38,249 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 04:54:38" (1/1) ... [2025-01-09 16:54:38,255 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 04:54:38" (1/1) ... [2025-01-09 16:54:38,257 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 04:54:38" (1/1) ... [2025-01-09 16:54:38,270 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 04:54:38" (1/1) ... [2025-01-09 16:54:38,277 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 04:54:38" (1/1) ... [2025-01-09 16:54:38,290 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-01-09 16:54:38,293 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-01-09 16:54:38,293 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-01-09 16:54:38,293 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-01-09 16:54:38,294 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 04:54:38" (1/1) ... [2025-01-09 16:54:38,298 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 16:54:38,308 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 16:54:38,322 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 16:54:38,325 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 16:54:38,343 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-01-09 16:54:38,344 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_bounded [2025-01-09 16:54:38,344 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_bounded [2025-01-09 16:54:38,344 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_valid [2025-01-09 16:54:38,344 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_valid [2025-01-09 16:54:38,344 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2025-01-09 16:54:38,344 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2025-01-09 16:54:38,344 INFO L130 BoogieDeclarations]: Found specification of procedure aws_allocator_is_valid [2025-01-09 16:54:38,344 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_allocator_is_valid [2025-01-09 16:54:38,344 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2025-01-09 16:54:38,344 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2025-01-09 16:54:38,344 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2025-01-09 16:54:38,344 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2025-01-09 16:54:38,345 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2025-01-09 16:54:38,345 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-01-09 16:54:38,345 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-01-09 16:54:38,345 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2025-01-09 16:54:38,345 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2025-01-09 16:54:38,345 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2025-01-09 16:54:38,345 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2025-01-09 16:54:38,345 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2025-01-09 16:54:38,345 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2025-01-09 16:54:38,345 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2025-01-09 16:54:38,345 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-01-09 16:54:38,345 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-01-09 16:54:38,345 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2025-01-09 16:54:38,345 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2025-01-09 16:54:38,345 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2025-01-09 16:54:38,345 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2025-01-09 16:54:38,346 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2025-01-09 16:54:38,346 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_impl [2025-01-09 16:54:38,346 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_impl [2025-01-09 16:54:38,346 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-01-09 16:54:38,346 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-01-09 16:54:38,346 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2025-01-09 16:54:38,346 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2025-01-09 16:54:38,346 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2025-01-09 16:54:38,346 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2025-01-09 16:54:38,346 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2025-01-09 16:54:38,346 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2025-01-09 16:54:38,346 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2025-01-09 16:54:38,346 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2025-01-09 16:54:38,346 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2025-01-09 16:54:38,346 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_malloc [2025-01-09 16:54:38,346 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_malloc [2025-01-09 16:54:38,346 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mem_release [2025-01-09 16:54:38,346 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mem_release [2025-01-09 16:54:38,346 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2025-01-09 16:54:38,346 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2025-01-09 16:54:38,346 INFO L130 BoogieDeclarations]: Found specification of procedure my_memcpy [2025-01-09 16:54:38,346 INFO L138 BoogieDeclarations]: Found implementation of procedure my_memcpy [2025-01-09 16:54:38,346 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mem_acquire [2025-01-09 16:54:38,346 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mem_acquire [2025-01-09 16:54:38,346 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-01-09 16:54:38,346 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2025-01-09 16:54:38,346 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2025-01-09 16:54:38,346 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2025-01-09 16:54:38,346 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2025-01-09 16:54:38,346 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2025-01-09 16:54:38,346 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2025-01-09 16:54:38,346 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2025-01-09 16:54:38,346 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2025-01-09 16:54:38,346 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2025-01-09 16:54:38,346 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2025-01-09 16:54:38,346 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2025-01-09 16:54:38,347 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2025-01-09 16:54:38,347 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2025-01-09 16:54:38,347 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2025-01-09 16:54:38,347 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-01-09 16:54:38,347 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-01-09 16:54:38,347 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2025-01-09 16:54:38,347 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2025-01-09 16:54:38,347 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2025-01-09 16:54:38,347 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_array_list_has_allocated_data_member [2025-01-09 16:54:38,347 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_array_list_has_allocated_data_member [2025-01-09 16:54:38,347 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-01-09 16:54:38,347 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-01-09 16:54:38,347 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-01-09 16:54:38,347 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2025-01-09 16:54:38,347 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2025-01-09 16:54:38,578 INFO L234 CfgBuilder]: Building ICFG [2025-01-09 16:54:38,580 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-01-09 16:54:44,614 INFO L? ?]: Removed 94 outVars from TransFormulas that were not future-live. [2025-01-09 16:54:44,615 INFO L283 CfgBuilder]: Performing block encoding [2025-01-09 16:54:44,632 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-01-09 16:54:44,632 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2025-01-09 16:54:44,633 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 04:54:44 BoogieIcfgContainer [2025-01-09 16:54:44,633 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-01-09 16:54:44,635 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-01-09 16:54:44,635 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-01-09 16:54:44,638 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-01-09 16:54:44,639 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.01 04:54:36" (1/3) ... [2025-01-09 16:54:44,639 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b1e7316 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 04:54:44, skipping insertion in model container [2025-01-09 16:54:44,639 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 04:54:38" (2/3) ... [2025-01-09 16:54:44,639 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b1e7316 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 04:54:44, skipping insertion in model container [2025-01-09 16:54:44,640 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 04:54:44" (3/3) ... [2025-01-09 16:54:44,641 INFO L128 eAbstractionObserver]: Analyzing ICFG aws_array_list_copy_harness_negated.i [2025-01-09 16:54:44,652 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-01-09 16:54:44,653 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG aws_array_list_copy_harness_negated.i that has 18 procedures, 209 locations, 1 initial locations, 0 loop locations, and 1 error locations. [2025-01-09 16:54:44,695 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-01-09 16:54:44,705 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;@65db8ca2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-01-09 16:54:44,706 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-01-09 16:54:44,710 INFO L276 IsEmpty]: Start isEmpty. Operand has 209 states, 119 states have (on average 1.184873949579832) internal successors, (141), 120 states have internal predecessors, (141), 71 states have call successors, (71), 17 states have call predecessors, (71), 17 states have return successors, (71), 71 states have call predecessors, (71), 71 states have call successors, (71) [2025-01-09 16:54:44,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2025-01-09 16:54:44,721 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 16:54:44,721 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 5, 5, 5, 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] [2025-01-09 16:54:44,722 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 16:54:44,728 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 16:54:44,728 INFO L85 PathProgramCache]: Analyzing trace with hash -1329126664, now seen corresponding path program 1 times [2025-01-09 16:54:44,734 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 16:54:44,734 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [97751035] [2025-01-09 16:54:44,734 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 16:54:44,735 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 16:54:49,145 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 145 statements into 1 equivalence classes. [2025-01-09 16:54:49,474 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 145 of 145 statements. [2025-01-09 16:54:49,475 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 16:54:49,475 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 16:54:49,922 INFO L134 CoverageAnalysis]: Checked inductivity of 319 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 297 trivial. 0 not checked. [2025-01-09 16:54:49,923 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 16:54:49,923 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [97751035] [2025-01-09 16:54:49,924 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [97751035] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 16:54:49,925 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [606105826] [2025-01-09 16:54:49,925 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 16:54:49,925 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 16:54:49,926 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 16:54:49,932 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 16:54:49,940 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 16:54:54,227 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 145 statements into 1 equivalence classes. [2025-01-09 16:54:54,679 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 145 of 145 statements. [2025-01-09 16:54:54,679 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 16:54:54,679 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 16:54:54,698 INFO L256 TraceCheckSpWp]: Trace formula consists of 4363 conjuncts, 1 conjuncts are in the unsatisfiable core [2025-01-09 16:54:54,706 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 16:54:54,720 INFO L134 CoverageAnalysis]: Checked inductivity of 319 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 294 trivial. 0 not checked. [2025-01-09 16:54:54,720 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 16:54:54,720 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [606105826] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 16:54:54,720 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-09 16:54:54,721 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2025-01-09 16:54:54,722 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [774799183] [2025-01-09 16:54:54,722 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 16:54:54,729 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-01-09 16:54:54,729 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 16:54:54,745 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-01-09 16:54:54,750 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-01-09 16:54:54,752 INFO L87 Difference]: Start difference. First operand has 209 states, 119 states have (on average 1.184873949579832) internal successors, (141), 120 states have internal predecessors, (141), 71 states have call successors, (71), 17 states have call predecessors, (71), 17 states have return successors, (71), 71 states have call predecessors, (71), 71 states have call successors, (71) Second operand has 2 states, 2 states have (on average 21.5) internal successors, (43), 2 states have internal predecessors, (43), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2025-01-09 16:54:54,791 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 16:54:54,791 INFO L93 Difference]: Finished difference Result 414 states and 603 transitions. [2025-01-09 16:54:54,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-09 16:54:54,793 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 21.5) internal successors, (43), 2 states have internal predecessors, (43), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 145 [2025-01-09 16:54:54,793 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 16:54:54,799 INFO L225 Difference]: With dead ends: 414 [2025-01-09 16:54:54,799 INFO L226 Difference]: Without dead ends: 204 [2025-01-09 16:54:54,803 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 146 GetRequests, 146 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 16:54:54,805 INFO L435 NwaCegarLoop]: 281 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, 281 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 16:54:54,805 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 281 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 16:54:54,814 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 204 states. [2025-01-09 16:54:54,834 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 204 to 204. [2025-01-09 16:54:54,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 204 states, 115 states have (on average 1.173913043478261) internal successors, (135), 116 states have internal predecessors, (135), 71 states have call successors, (71), 17 states have call predecessors, (71), 17 states have return successors, (70), 70 states have call predecessors, (70), 70 states have call successors, (70) [2025-01-09 16:54:54,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 204 states to 204 states and 276 transitions. [2025-01-09 16:54:54,841 INFO L78 Accepts]: Start accepts. Automaton has 204 states and 276 transitions. Word has length 145 [2025-01-09 16:54:54,846 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 16:54:54,846 INFO L471 AbstractCegarLoop]: Abstraction has 204 states and 276 transitions. [2025-01-09 16:54:54,846 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 21.5) internal successors, (43), 2 states have internal predecessors, (43), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2025-01-09 16:54:54,846 INFO L276 IsEmpty]: Start isEmpty. Operand 204 states and 276 transitions. [2025-01-09 16:54:54,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2025-01-09 16:54:54,848 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 16:54:54,848 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 5, 5, 5, 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] [2025-01-09 16:54:54,863 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 16:54:55,053 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 16:54:55,053 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 16:54:55,054 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 16:54:55,054 INFO L85 PathProgramCache]: Analyzing trace with hash -433130932, now seen corresponding path program 1 times [2025-01-09 16:54:55,054 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 16:54:55,054 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1402624573] [2025-01-09 16:54:55,054 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 16:54:55,055 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 16:54:58,935 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 145 statements into 1 equivalence classes. [2025-01-09 16:54:59,056 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 145 of 145 statements. [2025-01-09 16:54:59,057 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 16:54:59,057 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 16:54:59,517 INFO L134 CoverageAnalysis]: Checked inductivity of 319 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2025-01-09 16:54:59,518 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 16:54:59,518 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1402624573] [2025-01-09 16:54:59,519 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1402624573] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 16:54:59,519 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [236214] [2025-01-09 16:54:59,519 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 16:54:59,519 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 16:54:59,519 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 16:54:59,521 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 16:54:59,523 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 16:55:03,742 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 145 statements into 1 equivalence classes. [2025-01-09 16:55:04,161 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 145 of 145 statements. [2025-01-09 16:55:04,161 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 16:55:04,161 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 16:55:04,179 INFO L256 TraceCheckSpWp]: Trace formula consists of 4363 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-01-09 16:55:04,186 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 16:55:04,221 INFO L134 CoverageAnalysis]: Checked inductivity of 319 backedges. 50 proven. 0 refuted. 0 times theorem prover too weak. 269 trivial. 0 not checked. [2025-01-09 16:55:04,221 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 16:55:04,221 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [236214] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 16:55:04,221 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-09 16:55:04,222 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 3 [2025-01-09 16:55:04,222 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1615389365] [2025-01-09 16:55:04,222 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 16:55:04,223 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-09 16:55:04,223 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 16:55:04,223 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-09 16:55:04,223 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-09 16:55:04,224 INFO L87 Difference]: Start difference. First operand 204 states and 276 transitions. Second operand has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2025-01-09 16:55:04,293 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 16:55:04,294 INFO L93 Difference]: Finished difference Result 403 states and 547 transitions. [2025-01-09 16:55:04,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-09 16:55:04,294 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 145 [2025-01-09 16:55:04,294 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 16:55:04,296 INFO L225 Difference]: With dead ends: 403 [2025-01-09 16:55:04,296 INFO L226 Difference]: Without dead ends: 205 [2025-01-09 16:55:04,301 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 147 GetRequests, 146 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-09 16:55:04,302 INFO L435 NwaCegarLoop]: 275 mSDtfsCounter, 0 mSDsluCounter, 271 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 546 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-01-09 16:55:04,302 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 546 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 16:55:04,302 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 205 states. [2025-01-09 16:55:04,321 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 205 to 205. [2025-01-09 16:55:04,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 205 states, 116 states have (on average 1.1724137931034482) internal successors, (136), 117 states have internal predecessors, (136), 71 states have call successors, (71), 17 states have call predecessors, (71), 17 states have return successors, (70), 70 states have call predecessors, (70), 70 states have call successors, (70) [2025-01-09 16:55:04,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 205 states to 205 states and 277 transitions. [2025-01-09 16:55:04,328 INFO L78 Accepts]: Start accepts. Automaton has 205 states and 277 transitions. Word has length 145 [2025-01-09 16:55:04,329 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 16:55:04,329 INFO L471 AbstractCegarLoop]: Abstraction has 205 states and 277 transitions. [2025-01-09 16:55:04,329 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2025-01-09 16:55:04,329 INFO L276 IsEmpty]: Start isEmpty. Operand 205 states and 277 transitions. [2025-01-09 16:55:04,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2025-01-09 16:55:04,331 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 16:55:04,332 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 5, 5, 5, 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] [2025-01-09 16:55:04,345 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 16:55:04,535 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 16:55:04,535 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 16:55:04,537 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 16:55:04,537 INFO L85 PathProgramCache]: Analyzing trace with hash 995250632, now seen corresponding path program 1 times [2025-01-09 16:55:04,537 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 16:55:04,538 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [975778837] [2025-01-09 16:55:04,538 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 16:55:04,538 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 16:55:08,345 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 145 statements into 1 equivalence classes. [2025-01-09 16:55:08,473 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 145 of 145 statements. [2025-01-09 16:55:08,474 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 16:55:08,474 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 16:55:09,443 INFO L134 CoverageAnalysis]: Checked inductivity of 319 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 307 trivial. 0 not checked. [2025-01-09 16:55:09,444 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 16:55:09,444 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [975778837] [2025-01-09 16:55:09,444 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [975778837] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 16:55:09,444 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [95006052] [2025-01-09 16:55:09,444 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 16:55:09,444 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 16:55:09,444 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 16:55:09,449 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 16:55:09,450 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 16:55:13,588 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 145 statements into 1 equivalence classes. [2025-01-09 16:55:14,003 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 145 of 145 statements. [2025-01-09 16:55:14,004 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 16:55:14,004 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 16:55:14,021 INFO L256 TraceCheckSpWp]: Trace formula consists of 4369 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-01-09 16:55:14,026 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 16:55:14,591 INFO L134 CoverageAnalysis]: Checked inductivity of 319 backedges. 111 proven. 0 refuted. 0 times theorem prover too weak. 208 trivial. 0 not checked. [2025-01-09 16:55:14,592 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 16:55:14,592 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [95006052] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 16:55:14,592 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-09 16:55:14,592 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [5] total 9 [2025-01-09 16:55:14,592 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1671682212] [2025-01-09 16:55:14,592 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 16:55:14,593 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-01-09 16:55:14,593 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 16:55:14,593 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-01-09 16:55:14,593 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2025-01-09 16:55:14,593 INFO L87 Difference]: Start difference. First operand 205 states and 277 transitions. Second operand has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 6 states have internal predecessors, (55), 3 states have call successors, (26), 2 states have call predecessors, (26), 3 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) [2025-01-09 16:55:17,503 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 16:55:17,504 INFO L93 Difference]: Finished difference Result 405 states and 558 transitions. [2025-01-09 16:55:17,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-01-09 16:55:17,504 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 6 states have internal predecessors, (55), 3 states have call successors, (26), 2 states have call predecessors, (26), 3 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) Word has length 145 [2025-01-09 16:55:17,505 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 16:55:17,508 INFO L225 Difference]: With dead ends: 405 [2025-01-09 16:55:17,508 INFO L226 Difference]: Without dead ends: 207 [2025-01-09 16:55:17,509 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 152 GetRequests, 142 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2025-01-09 16:55:17,509 INFO L435 NwaCegarLoop]: 213 mSDtfsCounter, 282 mSDsluCounter, 566 mSDsCounter, 0 mSdLazyCounter, 220 mSolverCounterSat, 117 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 282 SdHoareTripleChecker+Valid, 779 SdHoareTripleChecker+Invalid, 337 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 117 IncrementalHoareTripleChecker+Valid, 220 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2025-01-09 16:55:17,510 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [282 Valid, 779 Invalid, 337 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [117 Valid, 220 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2025-01-09 16:55:17,510 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 207 states. [2025-01-09 16:55:17,521 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 207 to 207. [2025-01-09 16:55:17,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 207 states, 117 states have (on average 1.170940170940171) internal successors, (137), 119 states have internal predecessors, (137), 71 states have call successors, (71), 17 states have call predecessors, (71), 18 states have return successors, (82), 70 states have call predecessors, (82), 70 states have call successors, (82) [2025-01-09 16:55:17,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 207 states to 207 states and 290 transitions. [2025-01-09 16:55:17,524 INFO L78 Accepts]: Start accepts. Automaton has 207 states and 290 transitions. Word has length 145 [2025-01-09 16:55:17,524 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 16:55:17,524 INFO L471 AbstractCegarLoop]: Abstraction has 207 states and 290 transitions. [2025-01-09 16:55:17,525 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 6 states have internal predecessors, (55), 3 states have call successors, (26), 2 states have call predecessors, (26), 3 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) [2025-01-09 16:55:17,525 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states and 290 transitions. [2025-01-09 16:55:17,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2025-01-09 16:55:17,526 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 16:55:17,526 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 5, 5, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 16:55:17,546 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 16:55:17,731 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 16:55:17,731 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 16:55:17,731 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 16:55:17,731 INFO L85 PathProgramCache]: Analyzing trace with hash -139108393, now seen corresponding path program 1 times [2025-01-09 16:55:17,732 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 16:55:17,732 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1378752038] [2025-01-09 16:55:17,732 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 16:55:17,732 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 16:55:21,270 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 160 statements into 1 equivalence classes. [2025-01-09 16:55:21,356 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 160 of 160 statements. [2025-01-09 16:55:21,356 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 16:55:21,356 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 16:55:22,245 INFO L134 CoverageAnalysis]: Checked inductivity of 328 backedges. 3 proven. 9 refuted. 0 times theorem prover too weak. 316 trivial. 0 not checked. [2025-01-09 16:55:22,245 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 16:55:22,245 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1378752038] [2025-01-09 16:55:22,245 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1378752038] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 16:55:22,245 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [560385470] [2025-01-09 16:55:22,245 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 16:55:22,245 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 16:55:22,246 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 16:55:22,247 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 16:55:22,254 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 16:55:26,655 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 160 statements into 1 equivalence classes. [2025-01-09 16:55:27,062 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 160 of 160 statements. [2025-01-09 16:55:27,062 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 16:55:27,062 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 16:55:27,080 INFO L256 TraceCheckSpWp]: Trace formula consists of 4496 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-01-09 16:55:27,085 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 16:55:27,844 INFO L134 CoverageAnalysis]: Checked inductivity of 328 backedges. 176 proven. 0 refuted. 0 times theorem prover too weak. 152 trivial. 0 not checked. [2025-01-09 16:55:27,849 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 16:55:27,850 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [560385470] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 16:55:27,850 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-09 16:55:27,850 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [5] total 9 [2025-01-09 16:55:27,850 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1293731469] [2025-01-09 16:55:27,850 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 16:55:27,850 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-01-09 16:55:27,851 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 16:55:27,851 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-01-09 16:55:27,856 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2025-01-09 16:55:27,856 INFO L87 Difference]: Start difference. First operand 207 states and 290 transitions. Second operand has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 6 states have internal predecessors, (59), 3 states have call successors, (26), 2 states have call predecessors, (26), 3 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) [2025-01-09 16:55:30,743 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 16:55:30,743 INFO L93 Difference]: Finished difference Result 380 states and 530 transitions. [2025-01-09 16:55:30,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-01-09 16:55:30,744 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 6 states have internal predecessors, (59), 3 states have call successors, (26), 2 states have call predecessors, (26), 3 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) Word has length 160 [2025-01-09 16:55:30,744 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 16:55:30,746 INFO L225 Difference]: With dead ends: 380 [2025-01-09 16:55:30,746 INFO L226 Difference]: Without dead ends: 207 [2025-01-09 16:55:30,747 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 169 GetRequests, 159 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 16:55:30,747 INFO L435 NwaCegarLoop]: 214 mSDtfsCounter, 280 mSDsluCounter, 568 mSDsCounter, 0 mSdLazyCounter, 217 mSolverCounterSat, 108 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 280 SdHoareTripleChecker+Valid, 782 SdHoareTripleChecker+Invalid, 325 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 108 IncrementalHoareTripleChecker+Valid, 217 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2025-01-09 16:55:30,748 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [280 Valid, 782 Invalid, 325 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [108 Valid, 217 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2025-01-09 16:55:30,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 207 states. [2025-01-09 16:55:30,771 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 207 to 207. [2025-01-09 16:55:30,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 207 states, 117 states have (on average 1.170940170940171) internal successors, (137), 119 states have internal predecessors, (137), 71 states have call successors, (71), 17 states have call predecessors, (71), 18 states have return successors, (80), 70 states have call predecessors, (80), 70 states have call successors, (80) [2025-01-09 16:55:30,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 207 states to 207 states and 288 transitions. [2025-01-09 16:55:30,776 INFO L78 Accepts]: Start accepts. Automaton has 207 states and 288 transitions. Word has length 160 [2025-01-09 16:55:30,777 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 16:55:30,777 INFO L471 AbstractCegarLoop]: Abstraction has 207 states and 288 transitions. [2025-01-09 16:55:30,777 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 6 states have internal predecessors, (59), 3 states have call successors, (26), 2 states have call predecessors, (26), 3 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) [2025-01-09 16:55:30,777 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states and 288 transitions. [2025-01-09 16:55:30,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2025-01-09 16:55:30,779 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 16:55:30,779 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:55:30,797 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2025-01-09 16:55:30,980 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 16:55:30,980 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 16:55:30,980 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 16:55:30,980 INFO L85 PathProgramCache]: Analyzing trace with hash -1577477002, now seen corresponding path program 2 times [2025-01-09 16:55:30,980 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 16:55:30,980 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1686508374] [2025-01-09 16:55:30,981 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-01-09 16:55:30,981 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 16:55:34,614 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 175 statements into 2 equivalence classes. [2025-01-09 16:55:34,675 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 33 of 175 statements. [2025-01-09 16:55:34,675 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-01-09 16:55:34,675 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 16:55:35,241 INFO L134 CoverageAnalysis]: Checked inductivity of 352 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 346 trivial. 0 not checked. [2025-01-09 16:55:35,241 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 16:55:35,241 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1686508374] [2025-01-09 16:55:35,241 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1686508374] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 16:55:35,242 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 16:55:35,242 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-01-09 16:55:35,242 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1397092537] [2025-01-09 16:55:35,243 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 16:55:35,243 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-01-09 16:55:35,243 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 16:55:35,243 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-01-09 16:55:35,244 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-01-09 16:55:35,244 INFO L87 Difference]: Start difference. First operand 207 states and 288 transitions. Second operand has 5 states, 5 states have (on average 9.6) internal successors, (48), 5 states have internal predecessors, (48), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (24), 3 states have call predecessors, (24), 2 states have call successors, (24) [2025-01-09 16:55:35,409 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 16:55:35,409 INFO L93 Difference]: Finished difference Result 266 states and 364 transitions. [2025-01-09 16:55:35,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-09 16:55:35,410 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 5 states have internal predecessors, (48), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (24), 3 states have call predecessors, (24), 2 states have call successors, (24) Word has length 175 [2025-01-09 16:55:35,411 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 16:55:35,414 INFO L225 Difference]: With dead ends: 266 [2025-01-09 16:55:35,414 INFO L226 Difference]: Without dead ends: 212 [2025-01-09 16:55:35,414 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-01-09 16:55:35,415 INFO L435 NwaCegarLoop]: 273 mSDtfsCounter, 0 mSDsluCounter, 813 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1086 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-01-09 16:55:35,416 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1086 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-01-09 16:55:35,416 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 212 states. [2025-01-09 16:55:35,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 212 to 212. [2025-01-09 16:55:35,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 212 states, 121 states have (on average 1.165289256198347) internal successors, (141), 123 states have internal predecessors, (141), 71 states have call successors, (71), 17 states have call predecessors, (71), 19 states have return successors, (82), 71 states have call predecessors, (82), 70 states have call successors, (82) [2025-01-09 16:55:35,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 212 states to 212 states and 294 transitions. [2025-01-09 16:55:35,429 INFO L78 Accepts]: Start accepts. Automaton has 212 states and 294 transitions. Word has length 175 [2025-01-09 16:55:35,429 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 16:55:35,429 INFO L471 AbstractCegarLoop]: Abstraction has 212 states and 294 transitions. [2025-01-09 16:55:35,429 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 5 states have internal predecessors, (48), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (24), 3 states have call predecessors, (24), 2 states have call successors, (24) [2025-01-09 16:55:35,429 INFO L276 IsEmpty]: Start isEmpty. Operand 212 states and 294 transitions. [2025-01-09 16:55:35,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2025-01-09 16:55:35,431 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 16:55:35,431 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:55:35,431 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-01-09 16:55:35,431 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 16:55:35,432 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 16:55:35,432 INFO L85 PathProgramCache]: Analyzing trace with hash 1443434910, now seen corresponding path program 1 times [2025-01-09 16:55:35,432 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 16:55:35,432 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [368083552] [2025-01-09 16:55:35,432 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 16:55:35,432 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 16:55:38,942 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 181 statements into 1 equivalence classes. [2025-01-09 16:55:39,028 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 181 of 181 statements. [2025-01-09 16:55:39,028 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 16:55:39,028 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 16:55:40,051 INFO L134 CoverageAnalysis]: Checked inductivity of 352 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 340 trivial. 0 not checked. [2025-01-09 16:55:40,051 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 16:55:40,051 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [368083552] [2025-01-09 16:55:40,051 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [368083552] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 16:55:40,051 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1063151216] [2025-01-09 16:55:40,051 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 16:55:40,051 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 16:55:40,051 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 16:55:40,054 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 16:55:40,055 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 16:55:44,490 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 181 statements into 1 equivalence classes. [2025-01-09 16:55:44,900 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 181 of 181 statements. [2025-01-09 16:55:44,900 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 16:55:44,900 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 16:55:44,918 INFO L256 TraceCheckSpWp]: Trace formula consists of 4627 conjuncts, 7 conjuncts are in the unsatisfiable core [2025-01-09 16:55:44,924 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 16:55:46,124 INFO L134 CoverageAnalysis]: Checked inductivity of 352 backedges. 128 proven. 0 refuted. 0 times theorem prover too weak. 224 trivial. 0 not checked. [2025-01-09 16:55:46,124 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 16:55:46,124 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1063151216] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 16:55:46,124 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-09 16:55:46,124 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [6] total 11 [2025-01-09 16:55:46,124 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [678462435] [2025-01-09 16:55:46,124 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 16:55:46,125 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-01-09 16:55:46,125 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 16:55:46,125 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-01-09 16:55:46,126 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2025-01-09 16:55:46,127 INFO L87 Difference]: Start difference. First operand 212 states and 294 transitions. Second operand has 7 states, 7 states have (on average 9.0) internal successors, (63), 7 states have internal predecessors, (63), 4 states have call successors, (27), 2 states have call predecessors, (27), 3 states have return successors, (26), 4 states have call predecessors, (26), 4 states have call successors, (26) [2025-01-09 16:55:49,469 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 16:55:49,470 INFO L93 Difference]: Finished difference Result 379 states and 521 transitions. [2025-01-09 16:55:49,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-01-09 16:55:49,470 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.0) internal successors, (63), 7 states have internal predecessors, (63), 4 states have call successors, (27), 2 states have call predecessors, (27), 3 states have return successors, (26), 4 states have call predecessors, (26), 4 states have call successors, (26) Word has length 181 [2025-01-09 16:55:49,471 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 16:55:49,472 INFO L225 Difference]: With dead ends: 379 [2025-01-09 16:55:49,472 INFO L226 Difference]: Without dead ends: 212 [2025-01-09 16:55:49,473 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 192 GetRequests, 179 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 16:55:49,475 INFO L435 NwaCegarLoop]: 208 mSDtfsCounter, 308 mSDsluCounter, 737 mSDsCounter, 0 mSdLazyCounter, 269 mSolverCounterSat, 128 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 308 SdHoareTripleChecker+Valid, 945 SdHoareTripleChecker+Invalid, 397 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 128 IncrementalHoareTripleChecker+Valid, 269 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2025-01-09 16:55:49,476 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [308 Valid, 945 Invalid, 397 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [128 Valid, 269 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2025-01-09 16:55:49,477 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 212 states. [2025-01-09 16:55:49,493 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 212 to 212. [2025-01-09 16:55:49,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 212 states, 121 states have (on average 1.165289256198347) internal successors, (141), 123 states have internal predecessors, (141), 71 states have call successors, (71), 17 states have call predecessors, (71), 19 states have return successors, (77), 71 states have call predecessors, (77), 70 states have call successors, (77) [2025-01-09 16:55:49,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 212 states to 212 states and 289 transitions. [2025-01-09 16:55:49,497 INFO L78 Accepts]: Start accepts. Automaton has 212 states and 289 transitions. Word has length 181 [2025-01-09 16:55:49,498 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 16:55:49,498 INFO L471 AbstractCegarLoop]: Abstraction has 212 states and 289 transitions. [2025-01-09 16:55:49,498 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.0) internal successors, (63), 7 states have internal predecessors, (63), 4 states have call successors, (27), 2 states have call predecessors, (27), 3 states have return successors, (26), 4 states have call predecessors, (26), 4 states have call successors, (26) [2025-01-09 16:55:49,498 INFO L276 IsEmpty]: Start isEmpty. Operand 212 states and 289 transitions. [2025-01-09 16:55:49,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2025-01-09 16:55:49,500 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 16:55:49,500 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2025-01-09 16:55:49,517 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2025-01-09 16:55:49,700 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,6 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 16:55:49,700 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 16:55:49,701 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 16:55:49,701 INFO L85 PathProgramCache]: Analyzing trace with hash 447772293, now seen corresponding path program 1 times [2025-01-09 16:55:49,701 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 16:55:49,701 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [273279398] [2025-01-09 16:55:49,701 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 16:55:49,701 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 16:55:53,409 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 195 statements into 1 equivalence classes. [2025-01-09 16:55:53,485 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 195 of 195 statements. [2025-01-09 16:55:53,485 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 16:55:53,485 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 16:55:54,351 INFO L134 CoverageAnalysis]: Checked inductivity of 375 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 366 trivial. 0 not checked. [2025-01-09 16:55:54,351 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 16:55:54,351 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [273279398] [2025-01-09 16:55:54,351 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [273279398] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 16:55:54,351 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 16:55:54,352 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-01-09 16:55:54,352 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1940463389] [2025-01-09 16:55:54,352 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 16:55:54,352 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-01-09 16:55:54,352 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 16:55:54,352 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-01-09 16:55:54,353 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2025-01-09 16:55:54,354 INFO L87 Difference]: Start difference. First operand 212 states and 289 transitions. Second operand has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 6 states have internal predecessors, (55), 4 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (24), 4 states have call predecessors, (24), 4 states have call successors, (24) [2025-01-09 16:55:55,509 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 16:55:55,509 INFO L93 Difference]: Finished difference Result 376 states and 506 transitions. [2025-01-09 16:55:55,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-01-09 16:55:55,510 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 6 states have internal predecessors, (55), 4 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (24), 4 states have call predecessors, (24), 4 states have call successors, (24) Word has length 195 [2025-01-09 16:55:55,510 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 16:55:55,512 INFO L225 Difference]: With dead ends: 376 [2025-01-09 16:55:55,512 INFO L226 Difference]: Without dead ends: 210 [2025-01-09 16:55:55,513 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2025-01-09 16:55:55,513 INFO L435 NwaCegarLoop]: 256 mSDtfsCounter, 46 mSDsluCounter, 836 mSDsCounter, 0 mSdLazyCounter, 122 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 1092 SdHoareTripleChecker+Invalid, 126 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 122 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2025-01-09 16:55:55,513 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [77 Valid, 1092 Invalid, 126 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 122 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2025-01-09 16:55:55,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 210 states. [2025-01-09 16:55:55,524 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 210 to 210. [2025-01-09 16:55:55,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 210 states, 120 states have (on average 1.1583333333333334) internal successors, (139), 121 states have internal predecessors, (139), 71 states have call successors, (71), 17 states have call predecessors, (71), 18 states have return successors, (72), 71 states have call predecessors, (72), 70 states have call successors, (72) [2025-01-09 16:55:55,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 210 states to 210 states and 282 transitions. [2025-01-09 16:55:55,527 INFO L78 Accepts]: Start accepts. Automaton has 210 states and 282 transitions. Word has length 195 [2025-01-09 16:55:55,527 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 16:55:55,527 INFO L471 AbstractCegarLoop]: Abstraction has 210 states and 282 transitions. [2025-01-09 16:55:55,527 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 6 states have internal predecessors, (55), 4 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (24), 4 states have call predecessors, (24), 4 states have call successors, (24) [2025-01-09 16:55:55,527 INFO L276 IsEmpty]: Start isEmpty. Operand 210 states and 282 transitions. [2025-01-09 16:55:55,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2025-01-09 16:55:55,529 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 16:55:55,529 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2025-01-09 16:55:55,529 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-01-09 16:55:55,529 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 16:55:55,529 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 16:55:55,529 INFO L85 PathProgramCache]: Analyzing trace with hash 1713877896, now seen corresponding path program 1 times [2025-01-09 16:55:55,530 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 16:55:55,530 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1567003768] [2025-01-09 16:55:55,530 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 16:55:55,530 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 16:55:59,316 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 210 statements into 1 equivalence classes. [2025-01-09 16:55:59,452 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 210 of 210 statements. [2025-01-09 16:55:59,453 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 16:55:59,453 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 16:56:02,488 INFO L134 CoverageAnalysis]: Checked inductivity of 429 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 419 trivial. 0 not checked. [2025-01-09 16:56:02,489 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 16:56:02,489 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1567003768] [2025-01-09 16:56:02,489 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1567003768] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 16:56:02,489 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 16:56:02,489 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2025-01-09 16:56:02,489 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1506171577] [2025-01-09 16:56:02,489 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 16:56:02,490 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-01-09 16:56:02,490 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 16:56:02,490 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-01-09 16:56:02,490 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2025-01-09 16:56:02,491 INFO L87 Difference]: Start difference. First operand 210 states and 282 transitions. Second operand has 10 states, 10 states have (on average 6.0) internal successors, (60), 9 states have internal predecessors, (60), 6 states have call successors, (27), 2 states have call predecessors, (27), 3 states have return successors, (26), 7 states have call predecessors, (26), 6 states have call successors, (26) [2025-01-09 16:56:06,556 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers []