./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/aws-c-common/aws_array_list_init_static_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 551b0097 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/aws-c-common/aws_array_list_init_static_harness.i -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 5218740bc18d67a03fb6ada79d678262e4837698e28e927d44dbd2d60e2f84aa --- Real Ultimate output --- This is Ultimate 0.3.0-?-551b009-m [2025-01-09 16:55:58,510 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-01-09 16:55:58,565 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2025-01-09 16:55:58,569 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-01-09 16:55:58,569 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-01-09 16:55:58,591 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-01-09 16:55:58,592 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-01-09 16:55:58,592 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-01-09 16:55:58,592 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-01-09 16:55:58,592 INFO L153 SettingsManager]: * Use memory slicer=true [2025-01-09 16:55:58,592 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-01-09 16:55:58,593 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-01-09 16:55:58,593 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-01-09 16:55:58,593 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-01-09 16:55:58,593 INFO L153 SettingsManager]: * Use SBE=true [2025-01-09 16:55:58,593 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-01-09 16:55:58,593 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-01-09 16:55:58,593 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-01-09 16:55:58,593 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-01-09 16:55:58,593 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-01-09 16:55:58,594 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-01-09 16:55:58,594 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-01-09 16:55:58,594 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-01-09 16:55:58,594 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-01-09 16:55:58,594 INFO L153 SettingsManager]: * Use constant arrays=true [2025-01-09 16:55:58,594 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-01-09 16:55:58,594 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 16:55:58,594 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-09 16:55:58,594 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 16:55:58,594 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 16:55:58,595 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-01-09 16:55:58,595 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 16:55:58,595 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-09 16:55:58,595 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 16:55:58,595 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 16:55:58,595 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-01-09 16:55:58,595 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-01-09 16:55:58,595 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-01-09 16:55:58,595 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-01-09 16:55:58,595 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-01-09 16:55:58,595 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-01-09 16:55:58,596 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-01-09 16:55:58,596 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-01-09 16:55:58,596 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-01-09 16:55:58,596 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-01-09 16:55:58,596 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 -> 5218740bc18d67a03fb6ada79d678262e4837698e28e927d44dbd2d60e2f84aa [2025-01-09 16:55:58,848 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-01-09 16:55:58,860 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-01-09 16:55:58,862 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-01-09 16:55:58,863 INFO L270 PluginConnector]: Initializing CDTParser... [2025-01-09 16:55:58,863 INFO L274 PluginConnector]: CDTParser initialized [2025-01-09 16:55:58,865 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_array_list_init_static_harness.i [2025-01-09 16:56:00,062 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/0ea29d83d/8b3e80c421724d73aa54c889eb509e3d/FLAG0e1e64824 [2025-01-09 16:56:00,491 INFO L384 CDTParser]: Found 1 translation units. [2025-01-09 16:56:00,492 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_array_list_init_static_harness.i [2025-01-09 16:56:00,525 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/0ea29d83d/8b3e80c421724d73aa54c889eb509e3d/FLAG0e1e64824 [2025-01-09 16:56:00,540 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/0ea29d83d/8b3e80c421724d73aa54c889eb509e3d [2025-01-09 16:56:00,542 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-01-09 16:56:00,543 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-01-09 16:56:00,545 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-01-09 16:56:00,545 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-01-09 16:56:00,548 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-01-09 16:56:00,548 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 04:56:00" (1/1) ... [2025-01-09 16:56:00,549 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@58d9e5c1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 04:56:00, skipping insertion in model container [2025-01-09 16:56:00,549 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 04:56:00" (1/1) ... [2025-01-09 16:56:00,603 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-01-09 16:56:00,785 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_init_static_harness.i[4500,4513] [2025-01-09 16:56:00,791 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_init_static_harness.i[4560,4573] [2025-01-09 16:56:01,306 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 16:56:01,306 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 16:56:01,306 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 16:56:01,307 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 16:56:01,307 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 16:56:01,315 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 16:56:01,316 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 16:56:01,317 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 16:56:01,317 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 16:56:01,319 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 16:56:01,319 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 16:56:01,320 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 16:56:01,320 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 16:56:01,613 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 16:56:01,620 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 16:56:01,647 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 16:56:01,663 INFO L200 MainTranslator]: Completed pre-run [2025-01-09 16:56:01,674 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_init_static_harness.i[4500,4513] [2025-01-09 16:56:01,675 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_init_static_harness.i[4560,4573] [2025-01-09 16:56:01,720 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 16:56:01,720 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 16:56:01,720 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 16:56:01,721 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 16:56:01,721 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 16:56:01,727 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 16:56:01,730 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 16:56:01,730 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 16:56:01,731 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 16:56:01,731 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 16:56:01,731 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 16:56:01,732 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 16:56:01,732 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 16:56:01,801 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 16:56:01,808 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 16:56:01,817 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 16:56:01,956 INFO L204 MainTranslator]: Completed translation [2025-01-09 16:56:01,957 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 04:56:01 WrapperNode [2025-01-09 16:56:01,957 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-01-09 16:56:01,958 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-01-09 16:56:01,958 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-01-09 16:56:01,958 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-01-09 16:56:01,962 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 04:56:01" (1/1) ... [2025-01-09 16:56:02,023 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 04:56:01" (1/1) ... [2025-01-09 16:56:02,052 INFO L138 Inliner]: procedures = 670, calls = 1248, calls flagged for inlining = 52, calls inlined = 8, statements flattened = 162 [2025-01-09 16:56:02,052 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-01-09 16:56:02,057 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-01-09 16:56:02,057 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-01-09 16:56:02,057 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-01-09 16:56:02,068 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 04:56:01" (1/1) ... [2025-01-09 16:56:02,068 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 04:56:01" (1/1) ... [2025-01-09 16:56:02,074 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 04:56:01" (1/1) ... [2025-01-09 16:56:02,095 INFO L175 MemorySlicer]: Split 45 memory accesses to 5 slices as follows [2, 6, 5, 28, 4]. 62 percent of accesses are in the largest equivalence class. The 13 initializations are split as follows [2, 0, 5, 6, 0]. The 7 writes are split as follows [0, 2, 0, 5, 0]. [2025-01-09 16:56:02,096 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 04:56:01" (1/1) ... [2025-01-09 16:56:02,096 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 04:56:01" (1/1) ... [2025-01-09 16:56:02,105 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 04:56:01" (1/1) ... [2025-01-09 16:56:02,106 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 04:56:01" (1/1) ... [2025-01-09 16:56:02,108 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 04:56:01" (1/1) ... [2025-01-09 16:56:02,111 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 04:56:01" (1/1) ... [2025-01-09 16:56:02,112 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 04:56:01" (1/1) ... [2025-01-09 16:56:02,116 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-01-09 16:56:02,117 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-01-09 16:56:02,117 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-01-09 16:56:02,117 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-01-09 16:56:02,118 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 04:56:01" (1/1) ... [2025-01-09 16:56:02,122 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 16:56:02,140 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 16:56:02,159 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 16:56:02,163 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 16:56:02,182 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-01-09 16:56:02,183 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_valid [2025-01-09 16:56:02,183 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_valid [2025-01-09 16:56:02,183 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-01-09 16:56:02,183 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-01-09 16:56:02,183 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2025-01-09 16:56:02,183 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2025-01-09 16:56:02,183 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2025-01-09 16:56:02,183 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2025-01-09 16:56:02,183 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2025-01-09 16:56:02,183 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2025-01-09 16:56:02,184 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2025-01-09 16:56:02,184 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-01-09 16:56:02,184 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-01-09 16:56:02,184 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2025-01-09 16:56:02,184 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2025-01-09 16:56:02,184 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2025-01-09 16:56:02,184 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2025-01-09 16:56:02,184 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2025-01-09 16:56:02,184 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-01-09 16:56:02,184 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-01-09 16:56:02,184 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2025-01-09 16:56:02,184 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2025-01-09 16:56:02,184 INFO L130 BoogieDeclarations]: Found specification of procedure assert_byte_from_buffer_matches [2025-01-09 16:56:02,184 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_byte_from_buffer_matches [2025-01-09 16:56:02,185 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_size_t [2025-01-09 16:56:02,185 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_size_t [2025-01-09 16:56:02,185 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2025-01-09 16:56:02,185 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2025-01-09 16:56:02,185 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2025-01-09 16:56:02,185 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2025-01-09 16:56:02,185 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-01-09 16:56:02,185 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2025-01-09 16:56:02,185 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2025-01-09 16:56:02,185 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2025-01-09 16:56:02,185 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2025-01-09 16:56:02,185 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2025-01-09 16:56:02,185 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2025-01-09 16:56:02,185 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2025-01-09 16:56:02,186 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2025-01-09 16:56:02,186 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2025-01-09 16:56:02,186 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2025-01-09 16:56:02,186 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2025-01-09 16:56:02,186 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2025-01-09 16:56:02,186 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2025-01-09 16:56:02,186 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2025-01-09 16:56:02,186 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-01-09 16:56:02,186 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-01-09 16:56:02,186 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2025-01-09 16:56:02,186 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2025-01-09 16:56:02,186 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2025-01-09 16:56:02,186 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-01-09 16:56:02,186 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-01-09 16:56:02,187 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-01-09 16:56:02,187 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2025-01-09 16:56:02,187 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2025-01-09 16:56:02,399 INFO L234 CfgBuilder]: Building ICFG [2025-01-09 16:56:02,402 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-01-09 16:56:02,740 INFO L? ?]: Removed 96 outVars from TransFormulas that were not future-live. [2025-01-09 16:56:02,740 INFO L283 CfgBuilder]: Performing block encoding [2025-01-09 16:56:02,752 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-01-09 16:56:02,753 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2025-01-09 16:56:02,753 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 04:56:02 BoogieIcfgContainer [2025-01-09 16:56:02,754 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-01-09 16:56:02,755 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-01-09 16:56:02,755 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-01-09 16:56:02,758 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-01-09 16:56:02,759 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.01 04:56:00" (1/3) ... [2025-01-09 16:56:02,759 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@23142c3c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 04:56:02, skipping insertion in model container [2025-01-09 16:56:02,760 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 04:56:01" (2/3) ... [2025-01-09 16:56:02,760 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@23142c3c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 04:56:02, skipping insertion in model container [2025-01-09 16:56:02,760 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 04:56:02" (3/3) ... [2025-01-09 16:56:02,761 INFO L128 eAbstractionObserver]: Analyzing ICFG aws_array_list_init_static_harness.i [2025-01-09 16:56:02,772 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-01-09 16:56:02,776 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG aws_array_list_init_static_harness.i that has 11 procedures, 113 locations, 1 initial locations, 0 loop locations, and 1 error locations. [2025-01-09 16:56:02,823 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-01-09 16:56:02,833 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;@f55394e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-01-09 16:56:02,834 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-01-09 16:56:02,838 INFO L276 IsEmpty]: Start isEmpty. Operand has 113 states, 68 states have (on average 1.161764705882353) internal successors, (79), 69 states have internal predecessors, (79), 33 states have call successors, (33), 10 states have call predecessors, (33), 10 states have return successors, (33), 33 states have call predecessors, (33), 33 states have call successors, (33) [2025-01-09 16:56:02,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2025-01-09 16:56:02,846 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 16:56:02,846 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 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] [2025-01-09 16:56:02,847 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 16:56:02,851 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 16:56:02,852 INFO L85 PathProgramCache]: Analyzing trace with hash -1380798734, now seen corresponding path program 1 times [2025-01-09 16:56:02,857 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 16:56:02,857 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2111828120] [2025-01-09 16:56:02,857 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 16:56:02,858 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 16:56:03,011 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 99 statements into 1 equivalence classes. [2025-01-09 16:56:03,091 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 99 of 99 statements. [2025-01-09 16:56:03,092 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 16:56:03,092 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 16:56:03,551 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 156 trivial. 0 not checked. [2025-01-09 16:56:03,551 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 16:56:03,552 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2111828120] [2025-01-09 16:56:03,552 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2111828120] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 16:56:03,552 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 16:56:03,552 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-01-09 16:56:03,554 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [776866178] [2025-01-09 16:56:03,554 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 16:56:03,557 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-01-09 16:56:03,557 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 16:56:03,570 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-01-09 16:56:03,570 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-01-09 16:56:03,572 INFO L87 Difference]: Start difference. First operand has 113 states, 68 states have (on average 1.161764705882353) internal successors, (79), 69 states have internal predecessors, (79), 33 states have call successors, (33), 10 states have call predecessors, (33), 10 states have return successors, (33), 33 states have call predecessors, (33), 33 states have call successors, (33) Second operand has 6 states, 6 states have (on average 5.333333333333333) internal successors, (32), 6 states have internal predecessors, (32), 4 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (16), 4 states have call predecessors, (16), 3 states have call successors, (16) [2025-01-09 16:56:03,743 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 16:56:03,744 INFO L93 Difference]: Finished difference Result 221 states and 305 transitions. [2025-01-09 16:56:03,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-01-09 16:56:03,746 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.333333333333333) internal successors, (32), 6 states have internal predecessors, (32), 4 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (16), 4 states have call predecessors, (16), 3 states have call successors, (16) Word has length 99 [2025-01-09 16:56:03,747 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 16:56:03,756 INFO L225 Difference]: With dead ends: 221 [2025-01-09 16:56:03,757 INFO L226 Difference]: Without dead ends: 105 [2025-01-09 16:56:03,761 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2025-01-09 16:56:03,765 INFO L435 NwaCegarLoop]: 127 mSDtfsCounter, 31 mSDsluCounter, 436 mSDsCounter, 0 mSdLazyCounter, 71 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 563 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 71 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-01-09 16:56:03,768 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 563 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 71 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-01-09 16:56:03,778 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105 states. [2025-01-09 16:56:03,812 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105 to 105. [2025-01-09 16:56:03,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 105 states, 62 states have (on average 1.1129032258064515) internal successors, (69), 63 states have internal predecessors, (69), 33 states have call successors, (33), 10 states have call predecessors, (33), 9 states have return successors, (31), 31 states have call predecessors, (31), 31 states have call successors, (31) [2025-01-09 16:56:03,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 133 transitions. [2025-01-09 16:56:03,824 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 133 transitions. Word has length 99 [2025-01-09 16:56:03,825 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 16:56:03,826 INFO L471 AbstractCegarLoop]: Abstraction has 105 states and 133 transitions. [2025-01-09 16:56:03,826 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.333333333333333) internal successors, (32), 6 states have internal predecessors, (32), 4 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (16), 4 states have call predecessors, (16), 3 states have call successors, (16) [2025-01-09 16:56:03,826 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 133 transitions. [2025-01-09 16:56:03,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2025-01-09 16:56:03,830 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 16:56:03,830 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2025-01-09 16:56:03,831 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-01-09 16:56:03,831 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 16:56:03,832 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 16:56:03,832 INFO L85 PathProgramCache]: Analyzing trace with hash 254287568, now seen corresponding path program 1 times [2025-01-09 16:56:03,832 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 16:56:03,832 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2113530690] [2025-01-09 16:56:03,832 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 16:56:03,832 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 16:56:03,889 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 114 statements into 1 equivalence classes. [2025-01-09 16:56:04,183 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 114 of 114 statements. [2025-01-09 16:56:04,183 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 16:56:04,183 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 16:56:07,035 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 162 trivial. 0 not checked. [2025-01-09 16:56:07,037 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 16:56:07,037 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2113530690] [2025-01-09 16:56:07,037 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2113530690] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 16:56:07,037 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 16:56:07,037 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2025-01-09 16:56:07,038 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1471785936] [2025-01-09 16:56:07,038 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 16:56:07,039 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2025-01-09 16:56:07,039 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 16:56:07,039 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2025-01-09 16:56:07,040 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=368, Unknown=0, NotChecked=0, Total=420 [2025-01-09 16:56:07,040 INFO L87 Difference]: Start difference. First operand 105 states and 133 transitions. Second operand has 21 states, 19 states have (on average 2.1578947368421053) internal successors, (41), 18 states have internal predecessors, (41), 9 states have call successors, (19), 5 states have call predecessors, (19), 4 states have return successors, (18), 9 states have call predecessors, (18), 8 states have call successors, (18) [2025-01-09 16:56:08,857 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 16:56:08,858 INFO L93 Difference]: Finished difference Result 214 states and 277 transitions. [2025-01-09 16:56:08,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2025-01-09 16:56:08,859 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 19 states have (on average 2.1578947368421053) internal successors, (41), 18 states have internal predecessors, (41), 9 states have call successors, (19), 5 states have call predecessors, (19), 4 states have return successors, (18), 9 states have call predecessors, (18), 8 states have call successors, (18) Word has length 114 [2025-01-09 16:56:08,859 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 16:56:08,863 INFO L225 Difference]: With dead ends: 214 [2025-01-09 16:56:08,864 INFO L226 Difference]: Without dead ends: 147 [2025-01-09 16:56:08,865 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 221 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=168, Invalid=1164, Unknown=0, NotChecked=0, Total=1332 [2025-01-09 16:56:08,867 INFO L435 NwaCegarLoop]: 91 mSDtfsCounter, 189 mSDsluCounter, 476 mSDsCounter, 0 mSdLazyCounter, 1896 mSolverCounterSat, 177 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 190 SdHoareTripleChecker+Valid, 567 SdHoareTripleChecker+Invalid, 2073 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 177 IncrementalHoareTripleChecker+Valid, 1896 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2025-01-09 16:56:08,867 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [190 Valid, 567 Invalid, 2073 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [177 Valid, 1896 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2025-01-09 16:56:08,868 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 147 states. [2025-01-09 16:56:08,883 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 147 to 108. [2025-01-09 16:56:08,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 108 states, 64 states have (on average 1.109375) internal successors, (71), 66 states have internal predecessors, (71), 33 states have call successors, (33), 10 states have call predecessors, (33), 10 states have return successors, (32), 31 states have call predecessors, (32), 31 states have call successors, (32) [2025-01-09 16:56:08,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 136 transitions. [2025-01-09 16:56:08,885 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 136 transitions. Word has length 114 [2025-01-09 16:56:08,886 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 16:56:08,886 INFO L471 AbstractCegarLoop]: Abstraction has 108 states and 136 transitions. [2025-01-09 16:56:08,886 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 19 states have (on average 2.1578947368421053) internal successors, (41), 18 states have internal predecessors, (41), 9 states have call successors, (19), 5 states have call predecessors, (19), 4 states have return successors, (18), 9 states have call predecessors, (18), 8 states have call successors, (18) [2025-01-09 16:56:08,886 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 136 transitions. [2025-01-09 16:56:08,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2025-01-09 16:56:08,887 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 16:56:08,887 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2025-01-09 16:56:08,887 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-01-09 16:56:08,888 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 16:56:08,888 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 16:56:08,888 INFO L85 PathProgramCache]: Analyzing trace with hash -303983254, now seen corresponding path program 1 times [2025-01-09 16:56:08,888 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 16:56:08,888 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2032079820] [2025-01-09 16:56:08,888 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 16:56:08,889 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 16:56:08,918 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 116 statements into 1 equivalence classes. [2025-01-09 16:56:09,042 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 116 of 116 statements. [2025-01-09 16:56:09,042 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 16:56:09,042 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-01-09 16:56:09,047 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1950475158] [2025-01-09 16:56:09,047 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 16:56:09,048 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 16:56:09,048 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 16:56:09,050 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 16:56:09,052 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 16:56:09,186 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 116 statements into 1 equivalence classes. [2025-01-09 16:56:09,328 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 116 of 116 statements. [2025-01-09 16:56:09,328 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 16:56:09,328 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 16:56:09,335 INFO L256 TraceCheckSpWp]: Trace formula consists of 688 conjuncts, 159 conjuncts are in the unsatisfiable core [2025-01-09 16:56:09,350 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 16:56:09,385 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2025-01-09 16:56:09,593 INFO L349 Elim1Store]: treesize reduction 20, result has 33.3 percent of original size [2025-01-09 16:56:09,594 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 19 treesize of output 16 [2025-01-09 16:56:10,125 INFO L349 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2025-01-09 16:56:10,125 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 7 [2025-01-09 16:56:10,196 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-01-09 16:56:10,198 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-01-09 16:56:10,200 INFO L349 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2025-01-09 16:56:10,201 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 17 [2025-01-09 16:56:10,266 INFO L349 Elim1Store]: treesize reduction 48, result has 28.4 percent of original size [2025-01-09 16:56:10,267 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 24 treesize of output 28 [2025-01-09 16:56:11,024 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2025-01-09 16:56:16,272 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 30 [2025-01-09 16:56:20,032 INFO L349 Elim1Store]: treesize reduction 320, result has 27.1 percent of original size [2025-01-09 16:56:20,033 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 7 new quantified variables, introduced 17 case distinctions, treesize of input 151 treesize of output 248 [2025-01-09 16:56:20,177 INFO L349 Elim1Store]: treesize reduction 36, result has 55.6 percent of original size [2025-01-09 16:56:20,178 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 107 treesize of output 141 [2025-01-09 16:56:20,494 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 3 proven. 134 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2025-01-09 16:56:20,494 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-09 16:56:22,056 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 16:56:22,056 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2032079820] [2025-01-09 16:56:22,057 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-01-09 16:56:22,057 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1950475158] [2025-01-09 16:56:22,057 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1950475158] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 16:56:22,057 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2025-01-09 16:56:22,057 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [39] total 39 [2025-01-09 16:56:22,057 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1787759803] [2025-01-09 16:56:22,057 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2025-01-09 16:56:22,058 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 39 states [2025-01-09 16:56:22,058 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 16:56:22,059 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 39 interpolants. [2025-01-09 16:56:22,059 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=138, Invalid=1668, Unknown=0, NotChecked=0, Total=1806 [2025-01-09 16:56:22,059 INFO L87 Difference]: Start difference. First operand 108 states and 136 transitions. Second operand has 39 states, 33 states have (on average 1.9090909090909092) internal successors, (63), 32 states have internal predecessors, (63), 13 states have call successors, (20), 8 states have call predecessors, (20), 11 states have return successors, (19), 13 states have call predecessors, (19), 12 states have call successors, (19) [2025-01-09 16:56:31,928 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2025-01-09 16:56:36,308 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 16:56:36,309 INFO L93 Difference]: Finished difference Result 227 states and 285 transitions. [2025-01-09 16:56:36,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2025-01-09 16:56:36,309 INFO L78 Accepts]: Start accepts. Automaton has has 39 states, 33 states have (on average 1.9090909090909092) internal successors, (63), 32 states have internal predecessors, (63), 13 states have call successors, (20), 8 states have call predecessors, (20), 11 states have return successors, (19), 13 states have call predecessors, (19), 12 states have call successors, (19) Word has length 116 [2025-01-09 16:56:36,310 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 16:56:36,311 INFO L225 Difference]: With dead ends: 227 [2025-01-09 16:56:36,311 INFO L226 Difference]: Without dead ends: 157 [2025-01-09 16:56:36,313 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 153 GetRequests, 62 SyntacticMatches, 18 SemanticMatches, 73 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1717 ImplicationChecksByTransitivity, 12.3s TimeCoverageRelationStatistics Valid=528, Invalid=5019, Unknown=3, NotChecked=0, Total=5550 [2025-01-09 16:56:36,314 INFO L435 NwaCegarLoop]: 77 mSDtfsCounter, 231 mSDsluCounter, 814 mSDsCounter, 0 mSdLazyCounter, 3212 mSolverCounterSat, 226 mSolverCounterUnsat, 25 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 247 SdHoareTripleChecker+Valid, 891 SdHoareTripleChecker+Invalid, 3463 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 226 IncrementalHoareTripleChecker+Valid, 3212 IncrementalHoareTripleChecker+Invalid, 25 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.1s IncrementalHoareTripleChecker+Time [2025-01-09 16:56:36,314 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [247 Valid, 891 Invalid, 3463 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [226 Valid, 3212 Invalid, 25 Unknown, 0 Unchecked, 10.1s Time] [2025-01-09 16:56:36,314 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 157 states. [2025-01-09 16:56:36,340 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 157 to 141. [2025-01-09 16:56:36,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 141 states, 87 states have (on average 1.1149425287356323) internal successors, (97), 90 states have internal predecessors, (97), 38 states have call successors, (38), 13 states have call predecessors, (38), 15 states have return successors, (43), 37 states have call predecessors, (43), 36 states have call successors, (43) [2025-01-09 16:56:36,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141 states to 141 states and 178 transitions. [2025-01-09 16:56:36,342 INFO L78 Accepts]: Start accepts. Automaton has 141 states and 178 transitions. Word has length 116 [2025-01-09 16:56:36,343 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 16:56:36,343 INFO L471 AbstractCegarLoop]: Abstraction has 141 states and 178 transitions. [2025-01-09 16:56:36,343 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 39 states, 33 states have (on average 1.9090909090909092) internal successors, (63), 32 states have internal predecessors, (63), 13 states have call successors, (20), 8 states have call predecessors, (20), 11 states have return successors, (19), 13 states have call predecessors, (19), 12 states have call successors, (19) [2025-01-09 16:56:36,343 INFO L276 IsEmpty]: Start isEmpty. Operand 141 states and 178 transitions. [2025-01-09 16:56:36,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2025-01-09 16:56:36,347 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 16:56:36,347 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2025-01-09 16:56:36,357 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 16:56:36,547 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 16:56:36,548 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 16:56:36,548 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 16:56:36,548 INFO L85 PathProgramCache]: Analyzing trace with hash -45817816, now seen corresponding path program 1 times [2025-01-09 16:56:36,548 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 16:56:36,548 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [892047504] [2025-01-09 16:56:36,548 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 16:56:36,548 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 16:56:36,575 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 116 statements into 1 equivalence classes. [2025-01-09 16:56:36,651 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 116 of 116 statements. [2025-01-09 16:56:36,652 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 16:56:36,652 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 16:56:36,913 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 174 trivial. 0 not checked. [2025-01-09 16:56:36,913 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 16:56:36,913 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [892047504] [2025-01-09 16:56:36,913 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [892047504] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 16:56:36,913 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 16:56:36,913 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-01-09 16:56:36,914 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [808954519] [2025-01-09 16:56:36,914 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 16:56:36,914 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-01-09 16:56:36,915 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 16:56:36,915 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-01-09 16:56:36,916 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-01-09 16:56:36,916 INFO L87 Difference]: Start difference. First operand 141 states and 178 transitions. Second operand has 5 states, 5 states have (on average 7.8) internal successors, (39), 5 states have internal predecessors, (39), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (17), 2 states have call predecessors, (17), 1 states have call successors, (17) [2025-01-09 16:56:37,005 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 16:56:37,007 INFO L93 Difference]: Finished difference Result 229 states and 285 transitions. [2025-01-09 16:56:37,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-09 16:56:37,008 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.8) internal successors, (39), 5 states have internal predecessors, (39), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (17), 2 states have call predecessors, (17), 1 states have call successors, (17) Word has length 116 [2025-01-09 16:56:37,009 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 16:56:37,010 INFO L225 Difference]: With dead ends: 229 [2025-01-09 16:56:37,010 INFO L226 Difference]: Without dead ends: 147 [2025-01-09 16:56:37,010 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2025-01-09 16:56:37,011 INFO L435 NwaCegarLoop]: 133 mSDtfsCounter, 4 mSDsluCounter, 359 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 492 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-01-09 16:56:37,011 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 492 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-01-09 16:56:37,011 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 147 states. [2025-01-09 16:56:37,034 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 147 to 144. [2025-01-09 16:56:37,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 144 states, 90 states have (on average 1.1222222222222222) internal successors, (101), 93 states have internal predecessors, (101), 38 states have call successors, (38), 13 states have call predecessors, (38), 15 states have return successors, (43), 37 states have call predecessors, (43), 36 states have call successors, (43) [2025-01-09 16:56:37,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 182 transitions. [2025-01-09 16:56:37,038 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 182 transitions. Word has length 116 [2025-01-09 16:56:37,038 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 16:56:37,039 INFO L471 AbstractCegarLoop]: Abstraction has 144 states and 182 transitions. [2025-01-09 16:56:37,039 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.8) internal successors, (39), 5 states have internal predecessors, (39), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (17), 2 states have call predecessors, (17), 1 states have call successors, (17) [2025-01-09 16:56:37,040 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 182 transitions. [2025-01-09 16:56:37,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2025-01-09 16:56:37,041 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 16:56:37,042 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 16:56:37,042 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-01-09 16:56:37,042 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 16:56:37,043 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 16:56:37,043 INFO L85 PathProgramCache]: Analyzing trace with hash -578494890, now seen corresponding path program 1 times [2025-01-09 16:56:37,043 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 16:56:37,043 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [483770819] [2025-01-09 16:56:37,043 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 16:56:37,043 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 16:56:37,078 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 122 statements into 1 equivalence classes. [2025-01-09 16:56:37,147 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 122 of 122 statements. [2025-01-09 16:56:37,147 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 16:56:37,147 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 16:56:37,503 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 27 proven. 3 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2025-01-09 16:56:37,504 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 16:56:37,504 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [483770819] [2025-01-09 16:56:37,504 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [483770819] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 16:56:37,504 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1332935967] [2025-01-09 16:56:37,504 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 16:56:37,504 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 16:56:37,504 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 16:56:37,507 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 16:56:37,508 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 16:56:37,629 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 122 statements into 1 equivalence classes. [2025-01-09 16:56:37,713 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 122 of 122 statements. [2025-01-09 16:56:37,713 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 16:56:37,713 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 16:56:37,717 INFO L256 TraceCheckSpWp]: Trace formula consists of 692 conjuncts, 12 conjuncts are in the unsatisfiable core [2025-01-09 16:56:37,723 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 16:56:37,764 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 45 proven. 0 refuted. 0 times theorem prover too weak. 129 trivial. 0 not checked. [2025-01-09 16:56:37,765 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 16:56:37,765 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1332935967] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 16:56:37,766 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-09 16:56:37,766 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [10] total 11 [2025-01-09 16:56:37,766 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1680599269] [2025-01-09 16:56:37,766 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 16:56:37,766 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-01-09 16:56:37,767 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 16:56:37,767 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-01-09 16:56:37,767 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2025-01-09 16:56:37,767 INFO L87 Difference]: Start difference. First operand 144 states and 182 transitions. Second operand has 10 states, 9 states have (on average 6.111111111111111) internal successors, (55), 8 states have internal predecessors, (55), 3 states have call successors, (20), 2 states have call predecessors, (20), 5 states have return successors, (19), 4 states have call predecessors, (19), 3 states have call successors, (19) [2025-01-09 16:56:37,937 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 16:56:37,937 INFO L93 Difference]: Finished difference Result 229 states and 282 transitions. [2025-01-09 16:56:37,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-01-09 16:56:37,938 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 6.111111111111111) internal successors, (55), 8 states have internal predecessors, (55), 3 states have call successors, (20), 2 states have call predecessors, (20), 5 states have return successors, (19), 4 states have call predecessors, (19), 3 states have call successors, (19) Word has length 122 [2025-01-09 16:56:37,939 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 16:56:37,940 INFO L225 Difference]: With dead ends: 229 [2025-01-09 16:56:37,940 INFO L226 Difference]: Without dead ends: 140 [2025-01-09 16:56:37,940 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 122 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2025-01-09 16:56:37,941 INFO L435 NwaCegarLoop]: 125 mSDtfsCounter, 0 mSDsluCounter, 956 mSDsCounter, 0 mSdLazyCounter, 168 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1081 SdHoareTripleChecker+Invalid, 168 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 168 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-01-09 16:56:37,941 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1081 Invalid, 168 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 168 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-01-09 16:56:37,942 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2025-01-09 16:56:37,954 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 140. [2025-01-09 16:56:37,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 140 states, 88 states have (on average 1.125) internal successors, (99), 91 states have internal predecessors, (99), 36 states have call successors, (36), 13 states have call predecessors, (36), 15 states have return successors, (39), 35 states have call predecessors, (39), 34 states have call successors, (39) [2025-01-09 16:56:37,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 174 transitions. [2025-01-09 16:56:37,956 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 174 transitions. Word has length 122 [2025-01-09 16:56:37,956 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 16:56:37,956 INFO L471 AbstractCegarLoop]: Abstraction has 140 states and 174 transitions. [2025-01-09 16:56:37,957 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 6.111111111111111) internal successors, (55), 8 states have internal predecessors, (55), 3 states have call successors, (20), 2 states have call predecessors, (20), 5 states have return successors, (19), 4 states have call predecessors, (19), 3 states have call successors, (19) [2025-01-09 16:56:37,957 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 174 transitions. [2025-01-09 16:56:37,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2025-01-09 16:56:37,958 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 16:56:37,958 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2025-01-09 16:56:37,967 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2025-01-09 16:56:38,158 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 16:56:38,159 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 16:56:38,159 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 16:56:38,160 INFO L85 PathProgramCache]: Analyzing trace with hash 634240554, now seen corresponding path program 1 times [2025-01-09 16:56:38,160 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 16:56:38,160 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2087593106] [2025-01-09 16:56:38,160 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 16:56:38,160 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 16:56:38,180 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 116 statements into 1 equivalence classes. [2025-01-09 16:56:38,298 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 116 of 116 statements. [2025-01-09 16:56:38,299 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 16:56:38,301 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-01-09 16:56:38,307 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2062850843] [2025-01-09 16:56:38,308 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 16:56:38,309 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 16:56:38,309 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 16:56:38,311 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 16:56:38,314 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 16:56:38,458 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 116 statements into 1 equivalence classes. [2025-01-09 16:56:38,611 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 116 of 116 statements. [2025-01-09 16:56:38,612 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 16:56:38,612 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 16:56:38,618 INFO L256 TraceCheckSpWp]: Trace formula consists of 688 conjuncts, 157 conjuncts are in the unsatisfiable core [2025-01-09 16:56:38,624 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 16:56:38,637 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2025-01-09 16:56:38,720 INFO L349 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2025-01-09 16:56:38,720 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 12 treesize of output 14 [2025-01-09 16:56:38,967 INFO L349 Elim1Store]: treesize reduction 20, result has 33.3 percent of original size [2025-01-09 16:56:38,967 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 19 treesize of output 16 [2025-01-09 16:56:38,998 INFO L349 Elim1Store]: treesize reduction 20, result has 33.3 percent of original size [2025-01-09 16:56:38,998 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 19 treesize of output 16 [2025-01-09 16:56:39,401 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2025-01-09 16:56:39,582 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-01-09 16:56:39,586 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 9 [2025-01-09 16:56:39,594 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2025-01-09 16:56:43,135 INFO L349 Elim1Store]: treesize reduction 16, result has 67.3 percent of original size [2025-01-09 16:56:43,137 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 146 treesize of output 170 [2025-01-09 16:56:43,159 INFO L349 Elim1Store]: treesize reduction 21, result has 4.5 percent of original size [2025-01-09 16:56:43,159 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 152 treesize of output 170 [2025-01-09 16:56:43,207 INFO L349 Elim1Store]: treesize reduction 54, result has 31.6 percent of original size [2025-01-09 16:56:43,207 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 142 treesize of output 183 [2025-01-09 16:56:43,690 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 46 proven. 42 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2025-01-09 16:56:43,690 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-09 16:56:46,118 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 16:56:46,118 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2087593106] [2025-01-09 16:56:46,118 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-01-09 16:56:46,118 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2062850843] [2025-01-09 16:56:46,118 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2062850843] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 16:56:46,118 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2025-01-09 16:56:46,118 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [32] total 32 [2025-01-09 16:56:46,118 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1336040020] [2025-01-09 16:56:46,118 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2025-01-09 16:56:46,118 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2025-01-09 16:56:46,118 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 16:56:46,119 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2025-01-09 16:56:46,119 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=96, Invalid=1164, Unknown=0, NotChecked=0, Total=1260 [2025-01-09 16:56:46,119 INFO L87 Difference]: Start difference. First operand 140 states and 174 transitions. Second operand has 32 states, 27 states have (on average 1.962962962962963) internal successors, (53), 26 states have internal predecessors, (53), 11 states have call successors, (20), 6 states have call predecessors, (20), 6 states have return successors, (19), 11 states have call predecessors, (19), 10 states have call successors, (19) [2025-01-09 16:56:55,104 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2025-01-09 16:56:59,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 16:56:59,292 INFO L93 Difference]: Finished difference Result 163 states and 199 transitions. [2025-01-09 16:56:59,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2025-01-09 16:56:59,292 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 27 states have (on average 1.962962962962963) internal successors, (53), 26 states have internal predecessors, (53), 11 states have call successors, (20), 6 states have call predecessors, (20), 6 states have return successors, (19), 11 states have call predecessors, (19), 10 states have call successors, (19) Word has length 116 [2025-01-09 16:56:59,293 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 16:56:59,294 INFO L225 Difference]: With dead ends: 163 [2025-01-09 16:56:59,294 INFO L226 Difference]: Without dead ends: 161 [2025-01-09 16:56:59,295 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 155 GetRequests, 68 SyntacticMatches, 21 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1139 ImplicationChecksByTransitivity, 9.0s TimeCoverageRelationStatistics Valid=388, Invalid=4168, Unknown=0, NotChecked=0, Total=4556 [2025-01-09 16:56:59,295 INFO L435 NwaCegarLoop]: 78 mSDtfsCounter, 246 mSDsluCounter, 737 mSDsCounter, 0 mSdLazyCounter, 2336 mSolverCounterSat, 194 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 257 SdHoareTripleChecker+Valid, 815 SdHoareTripleChecker+Invalid, 2532 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 194 IncrementalHoareTripleChecker+Valid, 2336 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.9s IncrementalHoareTripleChecker+Time [2025-01-09 16:56:59,296 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [257 Valid, 815 Invalid, 2532 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [194 Valid, 2336 Invalid, 2 Unknown, 0 Unchecked, 7.9s Time] [2025-01-09 16:56:59,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 161 states. [2025-01-09 16:56:59,315 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 161 to 143. [2025-01-09 16:56:59,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 143 states, 91 states have (on average 1.1318681318681318) internal successors, (103), 94 states have internal predecessors, (103), 36 states have call successors, (36), 13 states have call predecessors, (36), 15 states have return successors, (39), 35 states have call predecessors, (39), 34 states have call successors, (39) [2025-01-09 16:56:59,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 143 states and 178 transitions. [2025-01-09 16:56:59,316 INFO L78 Accepts]: Start accepts. Automaton has 143 states and 178 transitions. Word has length 116 [2025-01-09 16:56:59,317 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 16:56:59,317 INFO L471 AbstractCegarLoop]: Abstraction has 143 states and 178 transitions. [2025-01-09 16:56:59,317 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 27 states have (on average 1.962962962962963) internal successors, (53), 26 states have internal predecessors, (53), 11 states have call successors, (20), 6 states have call predecessors, (20), 6 states have return successors, (19), 11 states have call predecessors, (19), 10 states have call successors, (19) [2025-01-09 16:56:59,317 INFO L276 IsEmpty]: Start isEmpty. Operand 143 states and 178 transitions. [2025-01-09 16:56:59,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2025-01-09 16:56:59,318 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 16:56:59,318 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 16:56:59,328 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 16:56:59,523 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 16:56:59,523 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 16:56:59,523 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 16:56:59,524 INFO L85 PathProgramCache]: Analyzing trace with hash 1063784086, now seen corresponding path program 2 times [2025-01-09 16:56:59,524 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 16:56:59,524 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2018721869] [2025-01-09 16:56:59,524 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-01-09 16:56:59,524 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 16:56:59,546 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 122 statements into 2 equivalence classes. [2025-01-09 16:56:59,639 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 122 of 122 statements. [2025-01-09 16:56:59,640 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-01-09 16:56:59,640 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-01-09 16:56:59,642 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1482854050] [2025-01-09 16:56:59,642 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-01-09 16:56:59,643 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 16:56:59,643 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 16:56:59,645 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 16:56:59,646 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 16:56:59,782 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 122 statements into 2 equivalence classes. [2025-01-09 16:56:59,817 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 45 of 122 statements. [2025-01-09 16:56:59,817 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-01-09 16:56:59,817 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 16:56:59,819 INFO L256 TraceCheckSpWp]: Trace formula consists of 323 conjuncts, 40 conjuncts are in the unsatisfiable core [2025-01-09 16:56:59,823 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 16:56:59,829 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 9 [2025-01-09 16:57:00,761 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 158 trivial. 0 not checked. [2025-01-09 16:57:00,761 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 16:57:00,761 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 16:57:00,761 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2018721869] [2025-01-09 16:57:00,761 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-01-09 16:57:00,761 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1482854050] [2025-01-09 16:57:00,761 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1482854050] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 16:57:00,761 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 16:57:00,761 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2025-01-09 16:57:00,761 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1957605446] [2025-01-09 16:57:00,761 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 16:57:00,761 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2025-01-09 16:57:00,761 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 16:57:00,762 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2025-01-09 16:57:00,762 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2025-01-09 16:57:00,762 INFO L87 Difference]: Start difference. First operand 143 states and 178 transitions. Second operand has 11 states, 8 states have (on average 6.125) internal successors, (49), 9 states have internal predecessors, (49), 6 states have call successors, (20), 3 states have call predecessors, (20), 4 states have return successors, (19), 5 states have call predecessors, (19), 5 states have call successors, (19) [2025-01-09 16:57:03,075 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 16:57:03,075 INFO L93 Difference]: Finished difference Result 233 states and 283 transitions. [2025-01-09 16:57:03,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2025-01-09 16:57:03,075 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 8 states have (on average 6.125) internal successors, (49), 9 states have internal predecessors, (49), 6 states have call successors, (20), 3 states have call predecessors, (20), 4 states have return successors, (19), 5 states have call predecessors, (19), 5 states have call successors, (19) Word has length 122 [2025-01-09 16:57:03,076 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 16:57:03,077 INFO L225 Difference]: With dead ends: 233 [2025-01-09 16:57:03,077 INFO L226 Difference]: Without dead ends: 145 [2025-01-09 16:57:03,077 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 112 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=57, Invalid=215, Unknown=0, NotChecked=0, Total=272 [2025-01-09 16:57:03,078 INFO L435 NwaCegarLoop]: 111 mSDtfsCounter, 42 mSDsluCounter, 267 mSDsCounter, 0 mSdLazyCounter, 635 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 378 SdHoareTripleChecker+Invalid, 667 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 635 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2025-01-09 16:57:03,078 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 378 Invalid, 667 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 635 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2025-01-09 16:57:03,083 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 145 states. [2025-01-09 16:57:03,098 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 145 to 139. [2025-01-09 16:57:03,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 139 states, 89 states have (on average 1.1348314606741574) internal successors, (101), 91 states have internal predecessors, (101), 35 states have call successors, (35), 13 states have call predecessors, (35), 14 states have return successors, (36), 34 states have call predecessors, (36), 33 states have call successors, (36) [2025-01-09 16:57:03,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139 states to 139 states and 172 transitions. [2025-01-09 16:57:03,100 INFO L78 Accepts]: Start accepts. Automaton has 139 states and 172 transitions. Word has length 122 [2025-01-09 16:57:03,100 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 16:57:03,100 INFO L471 AbstractCegarLoop]: Abstraction has 139 states and 172 transitions. [2025-01-09 16:57:03,100 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 8 states have (on average 6.125) internal successors, (49), 9 states have internal predecessors, (49), 6 states have call successors, (20), 3 states have call predecessors, (20), 4 states have return successors, (19), 5 states have call predecessors, (19), 5 states have call successors, (19) [2025-01-09 16:57:03,100 INFO L276 IsEmpty]: Start isEmpty. Operand 139 states and 172 transitions. [2025-01-09 16:57:03,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2025-01-09 16:57:03,101 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 16:57:03,101 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2025-01-09 16:57:03,109 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2025-01-09 16:57:03,302 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2025-01-09 16:57:03,302 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 16:57:03,303 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 16:57:03,303 INFO L85 PathProgramCache]: Analyzing trace with hash 562116, now seen corresponding path program 1 times [2025-01-09 16:57:03,303 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 16:57:03,303 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1059769812] [2025-01-09 16:57:03,303 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 16:57:03,303 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 16:57:03,405 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 143 statements into 1 equivalence classes. [2025-01-09 16:57:03,507 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 143 of 143 statements. [2025-01-09 16:57:03,507 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 16:57:03,507 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 16:57:06,086 INFO L134 CoverageAnalysis]: Checked inductivity of 213 backedges. 28 proven. 7 refuted. 0 times theorem prover too weak. 178 trivial. 0 not checked. [2025-01-09 16:57:06,087 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 16:57:06,087 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1059769812] [2025-01-09 16:57:06,087 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1059769812] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 16:57:06,087 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [500710194] [2025-01-09 16:57:06,087 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 16:57:06,087 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 16:57:06,087 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 16:57:06,089 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 16:57:06,090 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 16:57:06,236 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 143 statements into 1 equivalence classes. [2025-01-09 16:57:06,318 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 143 of 143 statements. [2025-01-09 16:57:06,319 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 16:57:06,319 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 16:57:06,323 INFO L256 TraceCheckSpWp]: Trace formula consists of 859 conjuncts, 65 conjuncts are in the unsatisfiable core [2025-01-09 16:57:06,327 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 16:57:06,526 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2025-01-09 16:57:06,656 WARN L873 $PredicateComparison]: unable to prove that (exists ((|v_aws_mul_size_checked_aws_mul_u64_checked_~r#1.base_17| Int) (|v_aws_mul_size_checked_aws_mul_u64_checked_~r#1.offset_22| Int)) (and (<= |v_aws_mul_size_checked_aws_mul_u64_checked_~r#1.offset_22| |c_aws_mul_size_checked_#in~r#1.offset|) (= (store |c_old(#memory_$Pointer$#3.base)| |v_aws_mul_size_checked_aws_mul_u64_checked_~r#1.base_17| (store (select |c_old(#memory_$Pointer$#3.base)| |v_aws_mul_size_checked_aws_mul_u64_checked_~r#1.base_17|) |v_aws_mul_size_checked_aws_mul_u64_checked_~r#1.offset_22| (select (select |c_#memory_$Pointer$#3.base| |v_aws_mul_size_checked_aws_mul_u64_checked_~r#1.base_17|) |v_aws_mul_size_checked_aws_mul_u64_checked_~r#1.offset_22|))) |c_#memory_$Pointer$#3.base|))) is different from true [2025-01-09 16:57:06,732 WARN L873 $PredicateComparison]: unable to prove that (exists ((|v_aws_mul_size_checked_aws_mul_u64_checked_~r#1.base_17| Int) (|v_aws_mul_size_checked_aws_mul_u64_checked_~r#1.offset_22| Int)) (and (= (store |c_old(#memory_$Pointer$#3.base)| |v_aws_mul_size_checked_aws_mul_u64_checked_~r#1.base_17| (store (select |c_old(#memory_$Pointer$#3.base)| |v_aws_mul_size_checked_aws_mul_u64_checked_~r#1.base_17|) |v_aws_mul_size_checked_aws_mul_u64_checked_~r#1.offset_22| (select (select |c_#memory_$Pointer$#3.base| |v_aws_mul_size_checked_aws_mul_u64_checked_~r#1.base_17|) |v_aws_mul_size_checked_aws_mul_u64_checked_~r#1.offset_22|))) |c_#memory_$Pointer$#3.base|) (<= |v_aws_mul_size_checked_aws_mul_u64_checked_~r#1.offset_22| 0))) is different from true [2025-01-09 16:57:06,759 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-01-09 16:57:06,759 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 14