./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/aws-c-common/aws_array_list_swap_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_swap_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 f13d223fa70379f8cd684d69e06e46c80e83d85aad0c82c0b48e3125c1bca56a --- Real Ultimate output --- This is Ultimate 0.3.0-?-551b009-m [2025-01-09 16:58:46,935 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-01-09 16:58:46,986 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2025-01-09 16:58:46,992 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-01-09 16:58:46,992 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-01-09 16:58:47,010 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-01-09 16:58:47,011 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-01-09 16:58:47,011 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-01-09 16:58:47,011 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-01-09 16:58:47,011 INFO L153 SettingsManager]: * Use memory slicer=true [2025-01-09 16:58:47,012 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-01-09 16:58:47,012 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-01-09 16:58:47,012 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-01-09 16:58:47,012 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-01-09 16:58:47,012 INFO L153 SettingsManager]: * Use SBE=true [2025-01-09 16:58:47,012 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-01-09 16:58:47,012 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-01-09 16:58:47,012 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-01-09 16:58:47,012 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-01-09 16:58:47,012 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-01-09 16:58:47,012 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-01-09 16:58:47,012 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-01-09 16:58:47,012 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-01-09 16:58:47,012 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-01-09 16:58:47,012 INFO L153 SettingsManager]: * Use constant arrays=true [2025-01-09 16:58:47,012 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-01-09 16:58:47,013 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 16:58:47,013 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-09 16:58:47,013 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 16:58:47,013 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 16:58:47,013 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-01-09 16:58:47,013 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 16:58:47,013 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-09 16:58:47,013 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 16:58:47,013 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 16:58:47,013 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-01-09 16:58:47,013 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-01-09 16:58:47,013 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-01-09 16:58:47,013 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-01-09 16:58:47,013 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-01-09 16:58:47,013 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-01-09 16:58:47,013 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-01-09 16:58:47,013 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-01-09 16:58:47,015 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-01-09 16:58:47,015 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-01-09 16:58:47,015 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 -> f13d223fa70379f8cd684d69e06e46c80e83d85aad0c82c0b48e3125c1bca56a [2025-01-09 16:58:47,218 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-01-09 16:58:47,225 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-01-09 16:58:47,226 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-01-09 16:58:47,227 INFO L270 PluginConnector]: Initializing CDTParser... [2025-01-09 16:58:47,227 INFO L274 PluginConnector]: CDTParser initialized [2025-01-09 16:58:47,229 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_array_list_swap_harness_negated.i [2025-01-09 16:58:48,439 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/97494d3dc/3c805e129c594a17be2ad20633c5c685/FLAGc99d4ee9f [2025-01-09 16:58:48,860 INFO L384 CDTParser]: Found 1 translation units. [2025-01-09 16:58:48,861 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_array_list_swap_harness_negated.i [2025-01-09 16:58:48,884 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/97494d3dc/3c805e129c594a17be2ad20633c5c685/FLAGc99d4ee9f [2025-01-09 16:58:48,896 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/97494d3dc/3c805e129c594a17be2ad20633c5c685 [2025-01-09 16:58:48,898 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-01-09 16:58:48,900 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-01-09 16:58:48,901 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-01-09 16:58:48,901 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-01-09 16:58:48,904 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-01-09 16:58:48,904 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 04:58:48" (1/1) ... [2025-01-09 16:58:48,905 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@51f7dd28 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 04:58:48, skipping insertion in model container [2025-01-09 16:58:48,905 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 04:58:48" (1/1) ... [2025-01-09 16:58:48,952 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-01-09 16:58:49,126 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_swap_harness_negated.i[4493,4506] [2025-01-09 16:58:49,131 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_swap_harness_negated.i[4553,4566] [2025-01-09 16:58:49,588 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 16:58:49,589 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 16:58:49,590 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 16:58:49,590 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 16:58:49,591 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 16:58:49,604 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 16:58:49,605 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 16:58:49,606 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 16:58:49,608 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 16:58:49,609 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 16:58:49,609 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 16:58:49,610 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 16:58:49,611 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 16:58:49,874 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 16:58:49,874 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 16:58:49,876 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 16:58:49,880 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 16:58:49,921 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 16:58:49,945 INFO L200 MainTranslator]: Completed pre-run [2025-01-09 16:58:49,954 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_swap_harness_negated.i[4493,4506] [2025-01-09 16:58:49,954 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_swap_harness_negated.i[4553,4566] [2025-01-09 16:58:49,992 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 16:58:49,993 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 16:58:49,993 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 16:58:49,993 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 16:58:49,993 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 16:58:49,998 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 16:58:49,998 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 16:58:49,999 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 16:58:49,999 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 16:58:50,000 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 16:58:50,000 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 16:58:50,000 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 16:58:50,000 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 16:58:50,065 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 16:58:50,065 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 16:58:50,066 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 16:58:50,073 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 16:58:50,084 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [7743-7754] [2025-01-09 16:58:50,094 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 16:58:50,222 INFO L204 MainTranslator]: Completed translation [2025-01-09 16:58:50,222 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 04:58:50 WrapperNode [2025-01-09 16:58:50,223 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-01-09 16:58:50,223 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-01-09 16:58:50,224 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-01-09 16:58:50,224 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-01-09 16:58:50,227 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 04:58:50" (1/1) ... [2025-01-09 16:58:50,265 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 04:58:50" (1/1) ... [2025-01-09 16:58:50,329 INFO L138 Inliner]: procedures = 680, calls = 1677, calls flagged for inlining = 52, calls inlined = 8, statements flattened = 651 [2025-01-09 16:58:50,329 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-01-09 16:58:50,329 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-01-09 16:58:50,330 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-01-09 16:58:50,330 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-01-09 16:58:50,339 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 04:58:50" (1/1) ... [2025-01-09 16:58:50,339 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 04:58:50" (1/1) ... [2025-01-09 16:58:50,348 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 04:58:50" (1/1) ... [2025-01-09 16:58:50,399 INFO L175 MemorySlicer]: Split 302 memory accesses to 7 slices as follows [238, 2, 39, 5, 6, 3, 9]. 79 percent of accesses are in the largest equivalence class. The 26 initializations are split as follows [6, 2, 5, 2, 5, 1, 5]. The 238 writes are split as follows [232, 0, 3, 1, 1, 1, 0]. [2025-01-09 16:58:50,402 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 04:58:50" (1/1) ... [2025-01-09 16:58:50,403 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 04:58:50" (1/1) ... [2025-01-09 16:58:50,427 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 04:58:50" (1/1) ... [2025-01-09 16:58:50,428 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 04:58:50" (1/1) ... [2025-01-09 16:58:50,431 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 04:58:50" (1/1) ... [2025-01-09 16:58:50,440 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 04:58:50" (1/1) ... [2025-01-09 16:58:50,442 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 04:58:50" (1/1) ... [2025-01-09 16:58:50,448 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-01-09 16:58:50,448 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-01-09 16:58:50,448 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-01-09 16:58:50,449 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-01-09 16:58:50,449 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 04:58:50" (1/1) ... [2025-01-09 16:58:50,453 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 16:58:50,462 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 16:58:50,475 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 16:58:50,480 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 16:58:50,499 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-01-09 16:58:50,500 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_bounded [2025-01-09 16:58:50,500 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_bounded [2025-01-09 16:58:50,500 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_valid [2025-01-09 16:58:50,500 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_valid [2025-01-09 16:58:50,500 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2025-01-09 16:58:50,500 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2025-01-09 16:58:50,500 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2025-01-09 16:58:50,500 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2025-01-09 16:58:50,500 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2025-01-09 16:58:50,500 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2025-01-09 16:58:50,500 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2025-01-09 16:58:50,500 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2025-01-09 16:58:50,500 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#6 [2025-01-09 16:58:50,500 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-01-09 16:58:50,500 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-01-09 16:58:50,500 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2025-01-09 16:58:50,500 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2025-01-09 16:58:50,500 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2025-01-09 16:58:50,500 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2025-01-09 16:58:50,500 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2025-01-09 16:58:50,500 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2025-01-09 16:58:50,500 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2025-01-09 16:58:50,500 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2025-01-09 16:58:50,500 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2025-01-09 16:58:50,500 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-01-09 16:58:50,500 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-01-09 16:58:50,500 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2025-01-09 16:58:50,500 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2025-01-09 16:58:50,500 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2025-01-09 16:58:50,500 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2025-01-09 16:58:50,500 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2025-01-09 16:58:50,500 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2025-01-09 16:58:50,501 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2025-01-09 16:58:50,501 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_impl [2025-01-09 16:58:50,501 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_impl [2025-01-09 16:58:50,501 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-01-09 16:58:50,501 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-01-09 16:58:50,501 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2025-01-09 16:58:50,501 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2025-01-09 16:58:50,501 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2025-01-09 16:58:50,501 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2025-01-09 16:58:50,501 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2025-01-09 16:58:50,501 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2025-01-09 16:58:50,501 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2025-01-09 16:58:50,501 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2025-01-09 16:58:50,501 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2025-01-09 16:58:50,501 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2025-01-09 16:58:50,501 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#6 [2025-01-09 16:58:50,501 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_length [2025-01-09 16:58:50,501 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_length [2025-01-09 16:58:50,501 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2025-01-09 16:58:50,501 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2025-01-09 16:58:50,501 INFO L130 BoogieDeclarations]: Found specification of procedure my_memcpy [2025-01-09 16:58:50,501 INFO L138 BoogieDeclarations]: Found implementation of procedure my_memcpy [2025-01-09 16:58:50,501 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-01-09 16:58:50,501 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2025-01-09 16:58:50,501 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2025-01-09 16:58:50,501 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2025-01-09 16:58:50,501 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2025-01-09 16:58:50,501 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2025-01-09 16:58:50,501 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2025-01-09 16:58:50,501 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2025-01-09 16:58:50,502 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2025-01-09 16:58:50,502 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2025-01-09 16:58:50,502 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2025-01-09 16:58:50,502 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2025-01-09 16:58:50,502 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2025-01-09 16:58:50,502 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2025-01-09 16:58:50,502 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#6 [2025-01-09 16:58:50,503 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_get_at_ptr [2025-01-09 16:58:50,503 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_get_at_ptr [2025-01-09 16:58:50,503 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2025-01-09 16:58:50,503 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2025-01-09 16:58:50,503 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2025-01-09 16:58:50,503 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2025-01-09 16:58:50,503 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-01-09 16:58:50,503 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-01-09 16:58:50,503 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2025-01-09 16:58:50,503 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2025-01-09 16:58:50,503 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2025-01-09 16:58:50,503 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2025-01-09 16:58:50,503 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2025-01-09 16:58:50,503 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_array_list_has_allocated_data_member [2025-01-09 16:58:50,503 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_array_list_has_allocated_data_member [2025-01-09 16:58:50,504 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-01-09 16:58:50,504 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-01-09 16:58:50,505 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-01-09 16:58:50,505 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2025-01-09 16:58:50,505 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2025-01-09 16:58:50,505 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2025-01-09 16:58:50,506 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2025-01-09 16:58:50,758 INFO L234 CfgBuilder]: Building ICFG [2025-01-09 16:58:50,767 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-01-09 16:58:56,663 INFO L? ?]: Removed 107 outVars from TransFormulas that were not future-live. [2025-01-09 16:58:56,663 INFO L283 CfgBuilder]: Performing block encoding [2025-01-09 16:58:56,675 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-01-09 16:58:56,676 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2025-01-09 16:58:56,676 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 04:58:56 BoogieIcfgContainer [2025-01-09 16:58:56,676 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-01-09 16:58:56,678 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-01-09 16:58:56,678 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-01-09 16:58:56,681 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-01-09 16:58:56,682 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.01 04:58:48" (1/3) ... [2025-01-09 16:58:56,683 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e289a83 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 04:58:56, skipping insertion in model container [2025-01-09 16:58:56,683 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 04:58:50" (2/3) ... [2025-01-09 16:58:56,683 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e289a83 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 04:58:56, skipping insertion in model container [2025-01-09 16:58:56,683 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 04:58:56" (3/3) ... [2025-01-09 16:58:56,684 INFO L128 eAbstractionObserver]: Analyzing ICFG aws_array_list_swap_harness_negated.i [2025-01-09 16:58:56,695 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-01-09 16:58:56,696 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG aws_array_list_swap_harness_negated.i that has 16 procedures, 178 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2025-01-09 16:58:56,738 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-01-09 16:58:56,749 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;@457aeae6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-01-09 16:58:56,749 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-01-09 16:58:56,753 INFO L276 IsEmpty]: Start isEmpty. Operand has 178 states, 100 states have (on average 1.16) internal successors, (116), 101 states have internal predecessors, (116), 61 states have call successors, (61), 15 states have call predecessors, (61), 15 states have return successors, (61), 61 states have call predecessors, (61), 61 states have call successors, (61) [2025-01-09 16:58:56,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2025-01-09 16:58:56,761 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 16:58:56,761 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:58:56,762 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 16:58:56,766 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 16:58:56,767 INFO L85 PathProgramCache]: Analyzing trace with hash -385702981, now seen corresponding path program 1 times [2025-01-09 16:58:56,772 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 16:58:56,773 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1601929307] [2025-01-09 16:58:56,773 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 16:58:56,774 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 16:59:01,136 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 69 statements into 1 equivalence classes. [2025-01-09 16:59:01,397 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 69 of 69 statements. [2025-01-09 16:59:01,398 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 16:59:01,398 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 16:59:01,718 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2025-01-09 16:59:01,719 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 16:59:01,719 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1601929307] [2025-01-09 16:59:01,720 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1601929307] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 16:59:01,721 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [759819580] [2025-01-09 16:59:01,721 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 16:59:01,721 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 16:59:01,722 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 16:59:01,723 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 16:59:01,725 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 16:59:05,676 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 69 statements into 1 equivalence classes. [2025-01-09 16:59:06,100 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 69 of 69 statements. [2025-01-09 16:59:06,101 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 16:59:06,101 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 16:59:06,119 INFO L256 TraceCheckSpWp]: Trace formula consists of 4013 conjuncts, 1 conjuncts are in the unsatisfiable core [2025-01-09 16:59:06,126 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 16:59:06,134 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2025-01-09 16:59:06,135 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 16:59:06,135 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [759819580] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 16:59:06,135 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-09 16:59:06,135 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2025-01-09 16:59:06,137 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [639417615] [2025-01-09 16:59:06,137 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 16:59:06,140 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-01-09 16:59:06,140 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 16:59:06,153 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-01-09 16:59:06,153 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-01-09 16:59:06,155 INFO L87 Difference]: Start difference. First operand has 178 states, 100 states have (on average 1.16) internal successors, (116), 101 states have internal predecessors, (116), 61 states have call successors, (61), 15 states have call predecessors, (61), 15 states have return successors, (61), 61 states have call predecessors, (61), 61 states have call successors, (61) Second operand has 2 states, 2 states have (on average 14.5) internal successors, (29), 2 states have internal predecessors, (29), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2025-01-09 16:59:06,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 16:59:06,185 INFO L93 Difference]: Finished difference Result 349 states and 511 transitions. [2025-01-09 16:59:06,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-09 16:59:06,187 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 14.5) internal successors, (29), 2 states have internal predecessors, (29), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 69 [2025-01-09 16:59:06,187 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 16:59:06,193 INFO L225 Difference]: With dead ends: 349 [2025-01-09 16:59:06,193 INFO L226 Difference]: Without dead ends: 173 [2025-01-09 16:59:06,197 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 70 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 16:59:06,199 INFO L435 NwaCegarLoop]: 236 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, 236 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 16:59:06,199 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 236 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 16:59:06,209 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 173 states. [2025-01-09 16:59:06,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 173 to 173. [2025-01-09 16:59:06,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 173 states, 96 states have (on average 1.1458333333333333) internal successors, (110), 97 states have internal predecessors, (110), 61 states have call successors, (61), 15 states have call predecessors, (61), 15 states have return successors, (60), 60 states have call predecessors, (60), 60 states have call successors, (60) [2025-01-09 16:59:06,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 173 states to 173 states and 231 transitions. [2025-01-09 16:59:06,240 INFO L78 Accepts]: Start accepts. Automaton has 173 states and 231 transitions. Word has length 69 [2025-01-09 16:59:06,240 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 16:59:06,240 INFO L471 AbstractCegarLoop]: Abstraction has 173 states and 231 transitions. [2025-01-09 16:59:06,240 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 14.5) internal successors, (29), 2 states have internal predecessors, (29), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2025-01-09 16:59:06,240 INFO L276 IsEmpty]: Start isEmpty. Operand 173 states and 231 transitions. [2025-01-09 16:59:06,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2025-01-09 16:59:06,242 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 16:59:06,243 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:59:06,256 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 16:59:06,443 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 16:59:06,444 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 16:59:06,444 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 16:59:06,445 INFO L85 PathProgramCache]: Analyzing trace with hash -1245920511, now seen corresponding path program 1 times [2025-01-09 16:59:06,445 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 16:59:06,445 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1900875400] [2025-01-09 16:59:06,445 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 16:59:06,445 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 16:59:10,226 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 69 statements into 1 equivalence classes. [2025-01-09 16:59:10,350 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 69 of 69 statements. [2025-01-09 16:59:10,350 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 16:59:10,350 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 16:59:11,163 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2025-01-09 16:59:11,163 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 16:59:11,163 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1900875400] [2025-01-09 16:59:11,163 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1900875400] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 16:59:11,163 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [973203930] [2025-01-09 16:59:11,163 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 16:59:11,163 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 16:59:11,163 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 16:59:11,165 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 16:59:11,167 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 16:59:15,538 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 69 statements into 1 equivalence classes. [2025-01-09 16:59:15,912 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 69 of 69 statements. [2025-01-09 16:59:15,912 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 16:59:15,912 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 16:59:15,927 INFO L256 TraceCheckSpWp]: Trace formula consists of 4013 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-01-09 16:59:15,931 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 16:59:16,510 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2025-01-09 16:59:16,510 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 16:59:16,510 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [973203930] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 16:59:16,510 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-09 16:59:16,510 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [5] total 9 [2025-01-09 16:59:16,510 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [598674392] [2025-01-09 16:59:16,511 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 16:59:16,511 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-01-09 16:59:16,511 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 16:59:16,512 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-01-09 16:59:16,512 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2025-01-09 16:59:16,512 INFO L87 Difference]: Start difference. First operand 173 states and 231 transitions. Second operand has 6 states, 6 states have (on average 5.5) internal successors, (33), 6 states have internal predecessors, (33), 3 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2025-01-09 16:59:18,893 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 16:59:18,893 INFO L93 Difference]: Finished difference Result 311 states and 428 transitions. [2025-01-09 16:59:18,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-01-09 16:59:18,894 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.5) internal successors, (33), 6 states have internal predecessors, (33), 3 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 69 [2025-01-09 16:59:18,894 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 16:59:18,897 INFO L225 Difference]: With dead ends: 311 [2025-01-09 16:59:18,897 INFO L226 Difference]: Without dead ends: 175 [2025-01-09 16:59:18,898 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 66 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 16:59:18,898 INFO L435 NwaCegarLoop]: 177 mSDtfsCounter, 234 mSDsluCounter, 483 mSDsCounter, 0 mSdLazyCounter, 190 mSolverCounterSat, 71 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 239 SdHoareTripleChecker+Valid, 660 SdHoareTripleChecker+Invalid, 261 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 71 IncrementalHoareTripleChecker+Valid, 190 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2025-01-09 16:59:18,898 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [239 Valid, 660 Invalid, 261 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [71 Valid, 190 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2025-01-09 16:59:18,899 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 175 states. [2025-01-09 16:59:18,910 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 175 to 175. [2025-01-09 16:59:18,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 175 states, 97 states have (on average 1.1443298969072164) internal successors, (111), 99 states have internal predecessors, (111), 61 states have call successors, (61), 15 states have call predecessors, (61), 16 states have return successors, (68), 60 states have call predecessors, (68), 60 states have call successors, (68) [2025-01-09 16:59:18,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 175 states to 175 states and 240 transitions. [2025-01-09 16:59:18,912 INFO L78 Accepts]: Start accepts. Automaton has 175 states and 240 transitions. Word has length 69 [2025-01-09 16:59:18,913 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 16:59:18,913 INFO L471 AbstractCegarLoop]: Abstraction has 175 states and 240 transitions. [2025-01-09 16:59:18,913 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.5) internal successors, (33), 6 states have internal predecessors, (33), 3 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2025-01-09 16:59:18,913 INFO L276 IsEmpty]: Start isEmpty. Operand 175 states and 240 transitions. [2025-01-09 16:59:18,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2025-01-09 16:59:18,914 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 16:59:18,915 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 16:59:18,930 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 16:59:19,115 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 16:59:19,115 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 16:59:19,116 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 16:59:19,116 INFO L85 PathProgramCache]: Analyzing trace with hash 1184897343, now seen corresponding path program 1 times [2025-01-09 16:59:19,116 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 16:59:19,116 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [486574483] [2025-01-09 16:59:19,116 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 16:59:19,117 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 16:59:22,583 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 84 statements into 1 equivalence classes. [2025-01-09 16:59:22,703 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 84 of 84 statements. [2025-01-09 16:59:22,703 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 16:59:22,703 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 16:59:23,798 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2025-01-09 16:59:23,798 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 16:59:23,798 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [486574483] [2025-01-09 16:59:23,798 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [486574483] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 16:59:23,798 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1387687408] [2025-01-09 16:59:23,798 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 16:59:23,798 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 16:59:23,798 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 16:59:23,800 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 16:59:23,802 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 16:59:27,720 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 84 statements into 1 equivalence classes. [2025-01-09 16:59:28,084 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 84 of 84 statements. [2025-01-09 16:59:28,084 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 16:59:28,084 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 16:59:28,099 INFO L256 TraceCheckSpWp]: Trace formula consists of 4140 conjuncts, 7 conjuncts are in the unsatisfiable core [2025-01-09 16:59:28,104 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 16:59:29,386 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2025-01-09 16:59:29,387 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 16:59:29,387 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1387687408] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 16:59:29,387 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-09 16:59:29,387 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [7] total 13 [2025-01-09 16:59:29,387 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1653170924] [2025-01-09 16:59:29,387 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 16:59:29,387 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-01-09 16:59:29,387 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 16:59:29,388 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-01-09 16:59:29,388 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2025-01-09 16:59:29,388 INFO L87 Difference]: Start difference. First operand 175 states and 240 transitions. Second operand has 8 states, 8 states have (on average 5.875) internal successors, (47), 7 states have internal predecessors, (47), 4 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (13), 4 states have call predecessors, (13), 4 states have call successors, (13) [2025-01-09 16:59:33,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 16:59:33,556 INFO L93 Difference]: Finished difference Result 322 states and 451 transitions. [2025-01-09 16:59:33,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-01-09 16:59:33,556 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.875) internal successors, (47), 7 states have internal predecessors, (47), 4 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (13), 4 states have call predecessors, (13), 4 states have call successors, (13) Word has length 84 [2025-01-09 16:59:33,557 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 16:59:33,559 INFO L225 Difference]: With dead ends: 322 [2025-01-09 16:59:33,559 INFO L226 Difference]: Without dead ends: 187 [2025-01-09 16:59:33,560 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 81 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=54, Invalid=252, Unknown=0, NotChecked=0, Total=306 [2025-01-09 16:59:33,561 INFO L435 NwaCegarLoop]: 171 mSDtfsCounter, 254 mSDsluCounter, 812 mSDsCounter, 0 mSdLazyCounter, 335 mSolverCounterSat, 86 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 259 SdHoareTripleChecker+Valid, 983 SdHoareTripleChecker+Invalid, 421 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 86 IncrementalHoareTripleChecker+Valid, 335 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2025-01-09 16:59:33,561 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [259 Valid, 983 Invalid, 421 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [86 Valid, 335 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2025-01-09 16:59:33,561 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 187 states. [2025-01-09 16:59:33,575 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 187 to 187. [2025-01-09 16:59:33,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 187 states, 103 states have (on average 1.145631067961165) internal successors, (118), 105 states have internal predecessors, (118), 66 states have call successors, (66), 16 states have call predecessors, (66), 17 states have return successors, (73), 65 states have call predecessors, (73), 65 states have call successors, (73) [2025-01-09 16:59:33,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 187 states to 187 states and 257 transitions. [2025-01-09 16:59:33,577 INFO L78 Accepts]: Start accepts. Automaton has 187 states and 257 transitions. Word has length 84 [2025-01-09 16:59:33,577 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 16:59:33,577 INFO L471 AbstractCegarLoop]: Abstraction has 187 states and 257 transitions. [2025-01-09 16:59:33,577 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.875) internal successors, (47), 7 states have internal predecessors, (47), 4 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (13), 4 states have call predecessors, (13), 4 states have call successors, (13) [2025-01-09 16:59:33,577 INFO L276 IsEmpty]: Start isEmpty. Operand 187 states and 257 transitions. [2025-01-09 16:59:33,578 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2025-01-09 16:59:33,579 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 16:59:33,579 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:59:33,597 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 16:59:33,783 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 16:59:33,783 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 16:59:33,784 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 16:59:33,784 INFO L85 PathProgramCache]: Analyzing trace with hash 784861361, now seen corresponding path program 1 times [2025-01-09 16:59:33,784 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 16:59:33,784 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1550488487] [2025-01-09 16:59:33,784 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 16:59:33,784 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 16:59:37,591 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 114 statements into 1 equivalence classes. [2025-01-09 16:59:39,709 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 114 of 114 statements. [2025-01-09 16:59:39,709 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 16:59:39,709 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-01-09 16:59:39,724 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [784975987] [2025-01-09 16:59:39,724 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 16:59:39,724 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 16:59:39,725 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 16:59:39,726 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 16:59:39,734 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 16:59:43,854 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 114 statements into 1 equivalence classes.