./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/aws-c-common/aws_array_list_back_harness_negated.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version c00e63dc Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/aws-c-common/aws_array_list_back_harness_negated.i -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 5d9c9690ebf4d597a96d56bea07230a5398e6c36b9eab0d2fba1dbd8091088b4 --- Real Ultimate output --- This is Ultimate 0.3.0-?-c00e63d-m [2025-02-06 04:48:13,765 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-06 04:48:13,831 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2025-02-06 04:48:13,840 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-06 04:48:13,841 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-06 04:48:13,862 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-06 04:48:13,863 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-06 04:48:13,863 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-06 04:48:13,864 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-06 04:48:13,864 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-06 04:48:13,864 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-06 04:48:13,864 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-06 04:48:13,864 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-06 04:48:13,864 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-06 04:48:13,864 INFO L153 SettingsManager]: * Use SBE=true [2025-02-06 04:48:13,865 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-06 04:48:13,865 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-06 04:48:13,865 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-06 04:48:13,865 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-06 04:48:13,865 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-06 04:48:13,865 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-06 04:48:13,865 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-06 04:48:13,866 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-06 04:48:13,866 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-06 04:48:13,866 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-06 04:48:13,866 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-06 04:48:13,866 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-06 04:48:13,866 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-06 04:48:13,866 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-06 04:48:13,866 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 04:48:13,867 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-06 04:48:13,867 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-06 04:48:13,867 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-02-06 04:48:13,867 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-02-06 04:48:13,867 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-06 04:48:13,867 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-06 04:48:13,867 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-06 04:48:13,867 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-06 04:48:13,867 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-06 04:48:13,867 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-06 04:48:13,867 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5d9c9690ebf4d597a96d56bea07230a5398e6c36b9eab0d2fba1dbd8091088b4 [2025-02-06 04:48:14,203 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-06 04:48:14,214 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-06 04:48:14,217 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-06 04:48:14,218 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-06 04:48:14,218 INFO L274 PluginConnector]: CDTParser initialized [2025-02-06 04:48:14,220 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_array_list_back_harness_negated.i [2025-02-06 04:48:15,595 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/ba86e467a/f9ab45c32e7143ceb8b0d477bdd4c39f/FLAGf2b8cf2c6 [2025-02-06 04:48:16,201 INFO L384 CDTParser]: Found 1 translation units. [2025-02-06 04:48:16,202 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_array_list_back_harness_negated.i [2025-02-06 04:48:16,247 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/ba86e467a/f9ab45c32e7143ceb8b0d477bdd4c39f/FLAGf2b8cf2c6 [2025-02-06 04:48:16,268 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/ba86e467a/f9ab45c32e7143ceb8b0d477bdd4c39f [2025-02-06 04:48:16,271 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-06 04:48:16,273 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-06 04:48:16,274 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-06 04:48:16,275 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-06 04:48:16,280 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-06 04:48:16,281 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 04:48:16" (1/1) ... [2025-02-06 04:48:16,281 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@755a91b7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 04:48:16, skipping insertion in model container [2025-02-06 04:48:16,283 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 04:48:16" (1/1) ... [2025-02-06 04:48:16,361 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-06 04:48:16,682 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_array_list_back_harness_negated.i[4493,4506] [2025-02-06 04:48:16,692 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_array_list_back_harness_negated.i[4553,4566] [2025-02-06 04:48:17,420 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 04:48:17,421 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 04:48:17,421 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 04:48:17,422 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 04:48:17,423 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 04:48:17,433 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 04:48:17,433 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 04:48:17,435 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 04:48:17,435 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 04:48:17,436 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 04:48:17,437 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 04:48:17,437 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 04:48:17,438 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 04:48:17,782 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 04:48:17,788 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 04:48:17,837 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 04:48:17,872 INFO L200 MainTranslator]: Completed pre-run [2025-02-06 04:48:17,885 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_array_list_back_harness_negated.i[4493,4506] [2025-02-06 04:48:17,885 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_array_list_back_harness_negated.i[4553,4566] [2025-02-06 04:48:17,948 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 04:48:17,949 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 04:48:17,949 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 04:48:17,949 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 04:48:17,950 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 04:48:17,961 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 04:48:17,962 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 04:48:17,966 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 04:48:17,966 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 04:48:17,967 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 04:48:17,968 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 04:48:17,968 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 04:48:17,968 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 04:48:18,076 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 04:48:18,083 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 04:48:18,093 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [7737-7748] [2025-02-06 04:48:18,118 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 04:48:18,285 INFO L204 MainTranslator]: Completed translation [2025-02-06 04:48:18,286 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 04:48:18 WrapperNode [2025-02-06 04:48:18,287 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-06 04:48:18,288 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-06 04:48:18,288 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-06 04:48:18,288 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-06 04:48:18,293 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 04:48:18" (1/1) ... [2025-02-06 04:48:18,374 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 04:48:18" (1/1) ... [2025-02-06 04:48:18,433 INFO L138 Inliner]: procedures = 680, calls = 1678, calls flagged for inlining = 52, calls inlined = 8, statements flattened = 656 [2025-02-06 04:48:18,433 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-06 04:48:18,434 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-06 04:48:18,434 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-06 04:48:18,434 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-06 04:48:18,442 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 04:48:18" (1/1) ... [2025-02-06 04:48:18,442 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 04:48:18" (1/1) ... [2025-02-06 04:48:18,448 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 04:48:18" (1/1) ... [2025-02-06 04:48:18,517 INFO L175 MemorySlicer]: Split 313 memory accesses to 6 slices as follows [238, 2, 9, 3, 6, 55]. 76 percent of accesses are in the largest equivalence class. The 24 initializations are split as follows [6, 2, 5, 1, 0, 10]. The 239 writes are split as follows [232, 0, 1, 1, 2, 3]. [2025-02-06 04:48:18,522 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 04:48:18" (1/1) ... [2025-02-06 04:48:18,522 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 04:48:18" (1/1) ... [2025-02-06 04:48:18,565 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 04:48:18" (1/1) ... [2025-02-06 04:48:18,567 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 04:48:18" (1/1) ... [2025-02-06 04:48:18,579 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 04:48:18" (1/1) ... [2025-02-06 04:48:18,585 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 04:48:18" (1/1) ... [2025-02-06 04:48:18,602 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-06 04:48:18,603 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-06 04:48:18,604 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-06 04:48:18,604 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-06 04:48:18,605 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 04:48:18" (1/1) ... [2025-02-06 04:48:18,611 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 04:48:18,624 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 04:48:18,644 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) [2025-02-06 04:48:18,653 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 [2025-02-06 04:48:18,672 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-02-06 04:48:18,673 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_bounded [2025-02-06 04:48:18,673 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_bounded [2025-02-06 04:48:18,674 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_valid [2025-02-06 04:48:18,674 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_valid [2025-02-06 04:48:18,674 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2025-02-06 04:48:18,675 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2025-02-06 04:48:18,675 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2025-02-06 04:48:18,675 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2025-02-06 04:48:18,675 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2025-02-06 04:48:18,675 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2025-02-06 04:48:18,675 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2025-02-06 04:48:18,675 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2025-02-06 04:48:18,675 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-02-06 04:48:18,675 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-02-06 04:48:18,675 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2025-02-06 04:48:18,675 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2025-02-06 04:48:18,676 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2025-02-06 04:48:18,676 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2025-02-06 04:48:18,676 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2025-02-06 04:48:18,676 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2025-02-06 04:48:18,676 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2025-02-06 04:48:18,676 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2025-02-06 04:48:18,676 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-02-06 04:48:18,676 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-06 04:48:18,676 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2025-02-06 04:48:18,676 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2025-02-06 04:48:18,676 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2025-02-06 04:48:18,676 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2025-02-06 04:48:18,676 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2025-02-06 04:48:18,676 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2025-02-06 04:48:18,676 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_impl [2025-02-06 04:48:18,676 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_impl [2025-02-06 04:48:18,676 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-06 04:48:18,676 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-06 04:48:18,676 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2025-02-06 04:48:18,676 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2025-02-06 04:48:18,676 INFO L130 BoogieDeclarations]: Found specification of procedure assert_byte_from_buffer_matches [2025-02-06 04:48:18,676 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_byte_from_buffer_matches [2025-02-06 04:48:18,676 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_size_t [2025-02-06 04:48:18,676 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_size_t [2025-02-06 04:48:18,676 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2025-02-06 04:48:18,676 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2025-02-06 04:48:18,676 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2025-02-06 04:48:18,677 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2025-02-06 04:48:18,677 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2025-02-06 04:48:18,677 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2025-02-06 04:48:18,677 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2025-02-06 04:48:18,677 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2025-02-06 04:48:18,677 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_malloc [2025-02-06 04:48:18,677 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_malloc [2025-02-06 04:48:18,677 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_length [2025-02-06 04:48:18,677 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_length [2025-02-06 04:48:18,677 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2025-02-06 04:48:18,677 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2025-02-06 04:48:18,677 INFO L130 BoogieDeclarations]: Found specification of procedure my_memcpy [2025-02-06 04:48:18,677 INFO L138 BoogieDeclarations]: Found implementation of procedure my_memcpy [2025-02-06 04:48:18,677 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-02-06 04:48:18,677 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2025-02-06 04:48:18,677 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2025-02-06 04:48:18,677 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2025-02-06 04:48:18,677 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2025-02-06 04:48:18,677 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2025-02-06 04:48:18,677 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2025-02-06 04:48:18,677 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2025-02-06 04:48:18,677 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2025-02-06 04:48:18,677 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2025-02-06 04:48:18,680 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2025-02-06 04:48:18,680 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2025-02-06 04:48:18,680 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2025-02-06 04:48:18,681 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2025-02-06 04:48:18,681 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2025-02-06 04:48:18,681 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2025-02-06 04:48:18,681 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2025-02-06 04:48:18,681 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-02-06 04:48:18,681 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-02-06 04:48:18,681 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2025-02-06 04:48:18,681 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2025-02-06 04:48:18,681 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2025-02-06 04:48:18,681 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2025-02-06 04:48:18,681 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_array_list_has_allocated_data_member [2025-02-06 04:48:18,682 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_array_list_has_allocated_data_member [2025-02-06 04:48:18,682 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-02-06 04:48:18,683 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-02-06 04:48:18,683 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-02-06 04:48:18,683 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2025-02-06 04:48:18,683 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2025-02-06 04:48:18,683 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2025-02-06 04:48:19,026 INFO L257 CfgBuilder]: Building ICFG [2025-02-06 04:48:19,029 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-06 04:48:19,075 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L2782: havoc #t~malloc77.base, #t~malloc77.offset; [2025-02-06 04:48:19,098 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L263: havoc #t~nondet6; [2025-02-06 04:48:19,137 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L2588: havoc #t~ret57#1; [2025-02-06 04:48:19,198 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L2796: havoc #t~ret81;havoc #t~ite83.base, #t~ite83.offset;havoc #t~ret82.base, #t~ret82.offset; [2025-02-06 04:48:19,313 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L3268: call ULTIMATE.dealloc(~#required_size~0.base, ~#required_size~0.offset);havoc ~#required_size~0.base, ~#required_size~0.offset; [2025-02-06 04:48:19,317 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L261: havoc #t~nondet4; [2025-02-06 04:48:19,345 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L7358: havoc #t~ret683.base, #t~ret683.offset; [2025-02-06 04:48:24,843 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L3417: havoc aws_array_list_back_~last_item_offset~0#1; [2025-02-06 04:48:24,844 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L3426: havoc aws_array_list_back_#t~ret217#1; [2025-02-06 04:48:24,923 INFO L? ?]: Removed 125 outVars from TransFormulas that were not future-live. [2025-02-06 04:48:24,923 INFO L308 CfgBuilder]: Performing block encoding [2025-02-06 04:48:24,938 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-06 04:48:24,938 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-06 04:48:24,939 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 04:48:24 BoogieIcfgContainer [2025-02-06 04:48:24,939 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-06 04:48:24,941 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-06 04:48:24,941 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-06 04:48:24,945 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-06 04:48:24,945 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.02 04:48:16" (1/3) ... [2025-02-06 04:48:24,946 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b670a62 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.02 04:48:24, skipping insertion in model container [2025-02-06 04:48:24,946 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 04:48:18" (2/3) ... [2025-02-06 04:48:24,946 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b670a62 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.02 04:48:24, skipping insertion in model container [2025-02-06 04:48:24,946 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 04:48:24" (3/3) ... [2025-02-06 04:48:24,947 INFO L128 eAbstractionObserver]: Analyzing ICFG aws_array_list_back_harness_negated.i [2025-02-06 04:48:24,959 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-06 04:48:24,961 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG aws_array_list_back_harness_negated.i that has 18 procedures, 184 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2025-02-06 04:48:25,015 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-06 04:48:25,052 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;@18c7ed89, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-06 04:48:25,052 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-02-06 04:48:25,056 INFO L276 IsEmpty]: Start isEmpty. Operand has 184 states, 110 states have (on average 1.2) internal successors, (132), 111 states have internal predecessors, (132), 55 states have call successors, (55), 17 states have call predecessors, (55), 17 states have return successors, (55), 55 states have call predecessors, (55), 55 states have call successors, (55) [2025-02-06 04:48:25,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2025-02-06 04:48:25,067 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 04:48:25,067 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 04:48:25,068 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-06 04:48:25,074 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 04:48:25,074 INFO L85 PathProgramCache]: Analyzing trace with hash -702525341, now seen corresponding path program 1 times [2025-02-06 04:48:25,084 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 04:48:25,084 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1680280483] [2025-02-06 04:48:25,084 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 04:48:25,085 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 04:48:30,100 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 129 statements into 1 equivalence classes. [2025-02-06 04:48:30,533 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 129 of 129 statements. [2025-02-06 04:48:30,534 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 04:48:30,534 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 04:48:31,068 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 202 trivial. 0 not checked. [2025-02-06 04:48:31,068 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 04:48:31,069 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1680280483] [2025-02-06 04:48:31,069 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1680280483] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 04:48:31,071 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1055186896] [2025-02-06 04:48:31,071 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 04:48:31,071 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 04:48:31,071 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 04:48:31,075 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) [2025-02-06 04:48:31,077 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 [2025-02-06 04:48:35,904 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 129 statements into 1 equivalence classes. [2025-02-06 04:48:36,500 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 129 of 129 statements. [2025-02-06 04:48:36,500 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 04:48:36,500 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 04:48:36,532 INFO L256 TraceCheckSpWp]: Trace formula consists of 4267 conjuncts, 1 conjuncts are in the unsatisfiable core [2025-02-06 04:48:36,542 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 04:48:36,559 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 202 trivial. 0 not checked. [2025-02-06 04:48:36,560 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 04:48:36,560 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1055186896] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 04:48:36,561 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-06 04:48:36,561 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2025-02-06 04:48:36,565 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1473622303] [2025-02-06 04:48:36,565 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 04:48:36,568 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-02-06 04:48:36,568 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 04:48:36,586 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-02-06 04:48:36,587 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-02-06 04:48:36,589 INFO L87 Difference]: Start difference. First operand has 184 states, 110 states have (on average 1.2) internal successors, (132), 111 states have internal predecessors, (132), 55 states have call successors, (55), 17 states have call predecessors, (55), 17 states have return successors, (55), 55 states have call predecessors, (55), 55 states have call successors, (55) Second operand has 2 states, 2 states have (on average 24.0) internal successors, (48), 2 states have internal predecessors, (48), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2025-02-06 04:48:36,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 04:48:36,673 INFO L93 Difference]: Finished difference Result 361 states and 512 transitions. [2025-02-06 04:48:36,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-02-06 04:48:36,676 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 24.0) internal successors, (48), 2 states have internal predecessors, (48), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 129 [2025-02-06 04:48:36,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 04:48:36,683 INFO L225 Difference]: With dead ends: 361 [2025-02-06 04:48:36,683 INFO L226 Difference]: Without dead ends: 175 [2025-02-06 04:48:36,690 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 130 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-02-06 04:48:36,692 INFO L435 NwaCegarLoop]: 240 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 240 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-06 04:48:36,693 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 240 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-06 04:48:36,704 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 175 states. [2025-02-06 04:48:36,731 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 175 to 175. [2025-02-06 04:48:36,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 175 states, 103 states have (on average 1.1650485436893203) internal successors, (120), 104 states have internal predecessors, (120), 55 states have call successors, (55), 17 states have call predecessors, (55), 16 states have return successors, (53), 53 states have call predecessors, (53), 53 states have call successors, (53) [2025-02-06 04:48:36,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 175 states to 175 states and 228 transitions. [2025-02-06 04:48:36,746 INFO L78 Accepts]: Start accepts. Automaton has 175 states and 228 transitions. Word has length 129 [2025-02-06 04:48:36,746 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 04:48:36,746 INFO L471 AbstractCegarLoop]: Abstraction has 175 states and 228 transitions. [2025-02-06 04:48:36,746 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 24.0) internal successors, (48), 2 states have internal predecessors, (48), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2025-02-06 04:48:36,747 INFO L276 IsEmpty]: Start isEmpty. Operand 175 states and 228 transitions. [2025-02-06 04:48:36,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2025-02-06 04:48:36,750 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 04:48:36,750 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 04:48:36,768 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2025-02-06 04:48:36,954 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2025-02-06 04:48:36,954 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-06 04:48:36,955 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 04:48:36,955 INFO L85 PathProgramCache]: Analyzing trace with hash -673010331, now seen corresponding path program 1 times [2025-02-06 04:48:36,955 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 04:48:36,955 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2041737142] [2025-02-06 04:48:36,955 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 04:48:36,955 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 04:48:41,039 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 129 statements into 1 equivalence classes. [2025-02-06 04:48:41,196 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 129 of 129 statements. [2025-02-06 04:48:41,197 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 04:48:41,197 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 04:48:42,480 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 208 trivial. 0 not checked. [2025-02-06 04:48:42,480 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 04:48:42,480 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2041737142] [2025-02-06 04:48:42,480 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2041737142] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 04:48:42,480 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1439338813] [2025-02-06 04:48:42,480 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 04:48:42,480 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 04:48:42,481 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 04:48:42,484 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) [2025-02-06 04:48:42,486 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 [2025-02-06 04:48:46,742 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 129 statements into 1 equivalence classes. [2025-02-06 04:48:47,314 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 129 of 129 statements. [2025-02-06 04:48:47,315 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 04:48:47,315 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 04:48:47,331 INFO L256 TraceCheckSpWp]: Trace formula consists of 4267 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-02-06 04:48:47,346 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 04:48:47,974 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 80 proven. 0 refuted. 0 times theorem prover too weak. 140 trivial. 0 not checked. [2025-02-06 04:48:47,975 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 04:48:47,975 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1439338813] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 04:48:47,975 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-06 04:48:47,975 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [5] total 9 [2025-02-06 04:48:47,977 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1572872364] [2025-02-06 04:48:47,977 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 04:48:47,978 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-06 04:48:47,979 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 04:48:47,980 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-06 04:48:47,981 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2025-02-06 04:48:47,981 INFO L87 Difference]: Start difference. First operand 175 states and 228 transitions. Second operand has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 6 states have internal predecessors, (52), 3 states have call successors, (23), 2 states have call predecessors, (23), 3 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) [2025-02-06 04:48:50,267 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 04:48:50,267 INFO L93 Difference]: Finished difference Result 323 states and 427 transitions. [2025-02-06 04:48:50,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-06 04:48:50,268 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 6 states have internal predecessors, (52), 3 states have call successors, (23), 2 states have call predecessors, (23), 3 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) Word has length 129 [2025-02-06 04:48:50,268 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 04:48:50,272 INFO L225 Difference]: With dead ends: 323 [2025-02-06 04:48:50,272 INFO L226 Difference]: Without dead ends: 177 [2025-02-06 04:48:50,273 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 136 GetRequests, 126 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2025-02-06 04:48:50,274 INFO L435 NwaCegarLoop]: 176 mSDtfsCounter, 240 mSDsluCounter, 474 mSDsCounter, 0 mSdLazyCounter, 177 mSolverCounterSat, 74 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 242 SdHoareTripleChecker+Valid, 650 SdHoareTripleChecker+Invalid, 251 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 74 IncrementalHoareTripleChecker+Valid, 177 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2025-02-06 04:48:50,274 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [242 Valid, 650 Invalid, 251 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [74 Valid, 177 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2025-02-06 04:48:50,275 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 177 states. [2025-02-06 04:48:50,301 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 177 to 177. [2025-02-06 04:48:50,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 177 states, 104 states have (on average 1.1634615384615385) internal successors, (121), 106 states have internal predecessors, (121), 55 states have call successors, (55), 17 states have call predecessors, (55), 17 states have return successors, (58), 53 states have call predecessors, (58), 53 states have call successors, (58) [2025-02-06 04:48:50,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177 states to 177 states and 234 transitions. [2025-02-06 04:48:50,306 INFO L78 Accepts]: Start accepts. Automaton has 177 states and 234 transitions. Word has length 129 [2025-02-06 04:48:50,307 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 04:48:50,307 INFO L471 AbstractCegarLoop]: Abstraction has 177 states and 234 transitions. [2025-02-06 04:48:50,307 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 6 states have internal predecessors, (52), 3 states have call successors, (23), 2 states have call predecessors, (23), 3 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) [2025-02-06 04:48:50,308 INFO L276 IsEmpty]: Start isEmpty. Operand 177 states and 234 transitions. [2025-02-06 04:48:50,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2025-02-06 04:48:50,312 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 04:48:50,313 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 5, 5, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 04:48:50,333 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2025-02-06 04:48:50,513 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 04:48:50,513 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-06 04:48:50,514 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 04:48:50,514 INFO L85 PathProgramCache]: Analyzing trace with hash -1804562303, now seen corresponding path program 1 times [2025-02-06 04:48:50,514 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 04:48:50,514 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [189324038] [2025-02-06 04:48:50,514 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 04:48:50,514 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 04:48:54,122 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 159 statements into 1 equivalence classes. [2025-02-06 04:48:54,380 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 159 of 159 statements. [2025-02-06 04:48:54,384 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 04:48:54,385 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 04:48:57,815 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 3 proven. 24 refuted. 0 times theorem prover too weak. 208 trivial. 0 not checked. [2025-02-06 04:48:57,816 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 04:48:57,817 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [189324038] [2025-02-06 04:48:57,817 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [189324038] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 04:48:57,817 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1513787316] [2025-02-06 04:48:57,817 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 04:48:57,817 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 04:48:57,817 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 04:48:57,819 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) [2025-02-06 04:48:57,821 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 [2025-02-06 04:49:01,884 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 159 statements into 1 equivalence classes. [2025-02-06 04:49:02,377 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 159 of 159 statements. [2025-02-06 04:49:02,378 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 04:49:02,378 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 04:49:02,396 INFO L256 TraceCheckSpWp]: Trace formula consists of 4521 conjuncts, 7 conjuncts are in the unsatisfiable core [2025-02-06 04:49:02,402 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 04:49:03,822 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 126 proven. 0 refuted. 0 times theorem prover too weak. 109 trivial. 0 not checked. [2025-02-06 04:49:03,822 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 04:49:03,822 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1513787316] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 04:49:03,822 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-06 04:49:03,822 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [10] total 15 [2025-02-06 04:49:03,822 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1804844850] [2025-02-06 04:49:03,822 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 04:49:03,823 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-02-06 04:49:03,823 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 04:49:03,823 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-02-06 04:49:03,824 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=176, Unknown=0, NotChecked=0, Total=210 [2025-02-06 04:49:03,824 INFO L87 Difference]: Start difference. First operand 177 states and 234 transitions. Second operand has 7 states, 6 states have (on average 11.0) internal successors, (66), 7 states have internal predecessors, (66), 4 states have call successors, (25), 2 states have call predecessors, (25), 3 states have return successors, (23), 3 states have call predecessors, (23), 4 states have call successors, (23) [2025-02-06 04:49:06,822 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 04:49:06,823 INFO L93 Difference]: Finished difference Result 285 states and 377 transitions. [2025-02-06 04:49:06,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-02-06 04:49:06,823 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 11.0) internal successors, (66), 7 states have internal predecessors, (66), 4 states have call successors, (25), 2 states have call predecessors, (25), 3 states have return successors, (23), 3 states have call predecessors, (23), 4 states have call successors, (23) Word has length 159 [2025-02-06 04:49:06,824 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 04:49:06,826 INFO L225 Difference]: With dead ends: 285 [2025-02-06 04:49:06,826 INFO L226 Difference]: Without dead ends: 177 [2025-02-06 04:49:06,827 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 174 GetRequests, 157 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=55, Invalid=287, Unknown=0, NotChecked=0, Total=342 [2025-02-06 04:49:06,827 INFO L435 NwaCegarLoop]: 173 mSDtfsCounter, 243 mSDsluCounter, 632 mSDsCounter, 0 mSdLazyCounter, 227 mSolverCounterSat, 71 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 245 SdHoareTripleChecker+Valid, 805 SdHoareTripleChecker+Invalid, 298 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 71 IncrementalHoareTripleChecker+Valid, 227 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2025-02-06 04:49:06,827 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [245 Valid, 805 Invalid, 298 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [71 Valid, 227 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2025-02-06 04:49:06,828 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 177 states. [2025-02-06 04:49:06,847 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 177 to 177. [2025-02-06 04:49:06,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 177 states, 104 states have (on average 1.1634615384615385) internal successors, (121), 106 states have internal predecessors, (121), 55 states have call successors, (55), 17 states have call predecessors, (55), 17 states have return successors, (55), 53 states have call predecessors, (55), 53 states have call successors, (55) [2025-02-06 04:49:06,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177 states to 177 states and 231 transitions. [2025-02-06 04:49:06,853 INFO L78 Accepts]: Start accepts. Automaton has 177 states and 231 transitions. Word has length 159 [2025-02-06 04:49:06,854 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 04:49:06,854 INFO L471 AbstractCegarLoop]: Abstraction has 177 states and 231 transitions. [2025-02-06 04:49:06,855 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 11.0) internal successors, (66), 7 states have internal predecessors, (66), 4 states have call successors, (25), 2 states have call predecessors, (25), 3 states have return successors, (23), 3 states have call predecessors, (23), 4 states have call successors, (23) [2025-02-06 04:49:06,855 INFO L276 IsEmpty]: Start isEmpty. Operand 177 states and 231 transitions. [2025-02-06 04:49:06,857 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2025-02-06 04:49:06,857 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 04:49:06,857 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 04:49:06,875 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2025-02-06 04:49:07,057 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 04:49:07,058 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-06 04:49:07,058 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 04:49:07,058 INFO L85 PathProgramCache]: Analyzing trace with hash 319784652, now seen corresponding path program 2 times [2025-02-06 04:49:07,059 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 04:49:07,059 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1654258661] [2025-02-06 04:49:07,059 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-06 04:49:07,059 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 04:49:10,937 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 174 statements into 2 equivalence classes. [2025-02-06 04:49:11,067 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 21 of 174 statements. [2025-02-06 04:49:11,068 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-02-06 04:49:11,068 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 04:49:13,494 INFO L134 CoverageAnalysis]: Checked inductivity of 265 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 257 trivial. 0 not checked. [2025-02-06 04:49:13,494 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 04:49:13,494 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1654258661] [2025-02-06 04:49:13,495 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1654258661] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 04:49:13,495 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 04:49:13,496 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-02-06 04:49:13,496 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1634100257] [2025-02-06 04:49:13,496 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 04:49:13,497 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-06 04:49:13,497 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 04:49:13,497 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-06 04:49:13,498 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-02-06 04:49:13,498 INFO L87 Difference]: Start difference. First operand 177 states and 231 transitions. Second operand has 6 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (23), 2 states have call predecessors, (23), 1 states have call successors, (23) [2025-02-06 04:49:13,866 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 04:49:13,866 INFO L93 Difference]: Finished difference Result 185 states and 239 transitions. [2025-02-06 04:49:13,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-06 04:49:13,866 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (23), 2 states have call predecessors, (23), 1 states have call successors, (23) Word has length 174 [2025-02-06 04:49:13,867 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 04:49:13,869 INFO L225 Difference]: With dead ends: 185 [2025-02-06 04:49:13,869 INFO L226 Difference]: Without dead ends: 183 [2025-02-06 04:49:13,869 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2025-02-06 04:49:13,870 INFO L435 NwaCegarLoop]: 225 mSDtfsCounter, 3 mSDsluCounter, 886 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 1111 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-02-06 04:49:13,870 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 1111 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-02-06 04:49:13,871 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 183 states. [2025-02-06 04:49:13,886 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 183 to 182. [2025-02-06 04:49:13,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 182 states, 107 states have (on average 1.158878504672897) internal successors, (124), 109 states have internal predecessors, (124), 56 states have call successors, (56), 18 states have call predecessors, (56), 18 states have return successors, (56), 54 states have call predecessors, (56), 54 states have call successors, (56) [2025-02-06 04:49:13,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 236 transitions. [2025-02-06 04:49:13,891 INFO L78 Accepts]: Start accepts. Automaton has 182 states and 236 transitions. Word has length 174 [2025-02-06 04:49:13,891 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 04:49:13,891 INFO L471 AbstractCegarLoop]: Abstraction has 182 states and 236 transitions. [2025-02-06 04:49:13,892 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (23), 2 states have call predecessors, (23), 1 states have call successors, (23) [2025-02-06 04:49:13,892 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 236 transitions. [2025-02-06 04:49:13,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2025-02-06 04:49:13,894 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 04:49:13,894 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 04:49:13,894 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-02-06 04:49:13,894 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-06 04:49:13,895 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 04:49:13,895 INFO L85 PathProgramCache]: Analyzing trace with hash 784023101, now seen corresponding path program 3 times [2025-02-06 04:49:13,895 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 04:49:13,895 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1971922139] [2025-02-06 04:49:13,895 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-02-06 04:49:13,895 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 04:49:17,466 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 189 statements into 10 equivalence classes. [2025-02-06 04:49:18,577 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) and asserted 47 of 189 statements. [2025-02-06 04:49:18,577 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2025-02-06 04:49:18,577 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 04:49:20,965 INFO L134 CoverageAnalysis]: Checked inductivity of 310 backedges. 33 proven. 2 refuted. 0 times theorem prover too weak. 275 trivial. 0 not checked. [2025-02-06 04:49:20,965 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 04:49:20,965 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1971922139] [2025-02-06 04:49:20,966 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1971922139] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 04:49:20,966 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [703916252] [2025-02-06 04:49:20,966 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-02-06 04:49:20,966 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 04:49:20,966 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 04:49:20,971 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) [2025-02-06 04:49:20,973 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 [2025-02-06 04:49:25,458 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 189 statements into 10 equivalence classes.