./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/aws-c-common/aws_array_list_swap_harness_negated.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 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_swap_harness_negated.i -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash f13d223fa70379f8cd684d69e06e46c80e83d85aad0c82c0b48e3125c1bca56a --- Real Ultimate output --- This is Ultimate 0.3.0-?-c00e63d-m [2025-02-06 04:53:50,359 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-06 04:53:50,411 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2025-02-06 04:53:50,415 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-06 04:53:50,415 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-06 04:53:50,437 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-06 04:53:50,437 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-06 04:53:50,437 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-06 04:53:50,437 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-06 04:53:50,437 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-06 04:53:50,438 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-06 04:53:50,438 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-06 04:53:50,438 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-06 04:53:50,438 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-06 04:53:50,438 INFO L153 SettingsManager]: * Use SBE=true [2025-02-06 04:53:50,438 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-06 04:53:50,438 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-06 04:53:50,438 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-06 04:53:50,438 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-06 04:53:50,438 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-06 04:53:50,438 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-06 04:53:50,438 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-06 04:53:50,440 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-06 04:53:50,440 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-06 04:53:50,440 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-06 04:53:50,440 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-06 04:53:50,440 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-06 04:53:50,441 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-06 04:53:50,441 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-06 04:53:50,441 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 04:53:50,441 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-06 04:53:50,441 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-06 04:53:50,441 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-02-06 04:53:50,441 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-02-06 04:53:50,441 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-06 04:53:50,441 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-06 04:53:50,441 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-06 04:53:50,442 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-06 04:53:50,442 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-06 04:53:50,442 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-06 04:53:50,442 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f13d223fa70379f8cd684d69e06e46c80e83d85aad0c82c0b48e3125c1bca56a [2025-02-06 04:53:50,663 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-06 04:53:50,668 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-06 04:53:50,670 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-06 04:53:50,671 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-06 04:53:50,671 INFO L274 PluginConnector]: CDTParser initialized [2025-02-06 04:53:50,672 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_array_list_swap_harness_negated.i [2025-02-06 04:53:51,818 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/112b6b238/a14998fd6ece44e6861d542a88c86044/FLAG24e80ef9a [2025-02-06 04:53:52,310 INFO L384 CDTParser]: Found 1 translation units. [2025-02-06 04:53:52,311 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_array_list_swap_harness_negated.i [2025-02-06 04:53:52,342 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/112b6b238/a14998fd6ece44e6861d542a88c86044/FLAG24e80ef9a [2025-02-06 04:53:52,416 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/112b6b238/a14998fd6ece44e6861d542a88c86044 [2025-02-06 04:53:52,418 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-06 04:53:52,420 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-06 04:53:52,422 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-06 04:53:52,422 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-06 04:53:52,426 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-06 04:53:52,427 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 04:53:52" (1/1) ... [2025-02-06 04:53:52,427 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@632f32bb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 04:53:52, skipping insertion in model container [2025-02-06 04:53:52,428 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 04:53:52" (1/1) ... [2025-02-06 04:53:52,488 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-06 04:53:52,740 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_array_list_swap_harness_negated.i[4493,4506] [2025-02-06 04:53:52,749 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_array_list_swap_harness_negated.i[4553,4566] [2025-02-06 04:53:53,381 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 04:53:53,382 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 04:53:53,383 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 04:53:53,384 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 04:53:53,384 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 04:53:53,392 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 04:53:53,393 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 04:53:53,394 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 04:53:53,394 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 04:53:53,395 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 04:53:53,395 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 04:53:53,396 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 04:53:53,396 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 04:53:53,738 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 04:53:53,738 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 04:53:53,746 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 04:53:53,751 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 04:53:53,791 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 04:53:53,818 INFO L200 MainTranslator]: Completed pre-run [2025-02-06 04:53:53,831 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_array_list_swap_harness_negated.i[4493,4506] [2025-02-06 04:53:53,832 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_array_list_swap_harness_negated.i[4553,4566] [2025-02-06 04:53:53,866 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 04:53:53,867 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 04:53:53,867 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 04:53:53,867 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 04:53:53,868 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 04:53:53,873 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 04:53:53,873 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 04:53:53,875 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 04:53:53,875 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 04:53:53,876 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 04:53:53,877 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 04:53:53,877 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 04:53:53,877 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 04:53:53,970 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 04:53:53,970 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 04:53:53,975 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 04:53:53,978 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 04:53:53,982 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [7743-7754] [2025-02-06 04:53:54,000 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 04:53:54,145 INFO L204 MainTranslator]: Completed translation [2025-02-06 04:53:54,146 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 04:53:54 WrapperNode [2025-02-06 04:53:54,146 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-06 04:53:54,147 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-06 04:53:54,147 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-06 04:53:54,147 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-06 04:53:54,151 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 04:53:54" (1/1) ... [2025-02-06 04:53:54,211 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 04:53:54" (1/1) ... [2025-02-06 04:53:54,256 INFO L138 Inliner]: procedures = 680, calls = 1677, calls flagged for inlining = 52, calls inlined = 8, statements flattened = 651 [2025-02-06 04:53:54,257 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-06 04:53:54,257 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-06 04:53:54,258 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-06 04:53:54,258 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-06 04:53:54,268 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 04:53:54" (1/1) ... [2025-02-06 04:53:54,268 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 04:53:54" (1/1) ... [2025-02-06 04:53:54,274 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 04:53:54" (1/1) ... [2025-02-06 04:53:54,327 INFO L175 MemorySlicer]: Split 302 memory accesses to 7 slices as follows [6, 2, 238, 39, 3, 9, 5]. 79 percent of accesses are in the largest equivalence class. The 26 initializations are split as follows [5, 2, 6, 5, 1, 5, 2]. The 238 writes are split as follows [1, 0, 232, 3, 1, 0, 1]. [2025-02-06 04:53:54,329 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 04:53:54" (1/1) ... [2025-02-06 04:53:54,329 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 04:53:54" (1/1) ... [2025-02-06 04:53:54,358 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 04:53:54" (1/1) ... [2025-02-06 04:53:54,364 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 04:53:54" (1/1) ... [2025-02-06 04:53:54,372 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 04:53:54" (1/1) ... [2025-02-06 04:53:54,374 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 04:53:54" (1/1) ... [2025-02-06 04:53:54,385 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-06 04:53:54,387 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-06 04:53:54,387 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-06 04:53:54,388 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-06 04:53:54,388 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 04:53:54" (1/1) ... [2025-02-06 04:53:54,393 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 04:53:54,403 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 04:53:54,415 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 04:53:54,417 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 04:53:54,437 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-02-06 04:53:54,438 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_bounded [2025-02-06 04:53:54,438 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_bounded [2025-02-06 04:53:54,438 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_valid [2025-02-06 04:53:54,438 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_valid [2025-02-06 04:53:54,438 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2025-02-06 04:53:54,438 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2025-02-06 04:53:54,438 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2025-02-06 04:53:54,438 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2025-02-06 04:53:54,438 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2025-02-06 04:53:54,439 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2025-02-06 04:53:54,439 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2025-02-06 04:53:54,439 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2025-02-06 04:53:54,439 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#6 [2025-02-06 04:53:54,439 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-02-06 04:53:54,439 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-02-06 04:53:54,439 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2025-02-06 04:53:54,439 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2025-02-06 04:53:54,439 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2025-02-06 04:53:54,440 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2025-02-06 04:53:54,440 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2025-02-06 04:53:54,440 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2025-02-06 04:53:54,440 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2025-02-06 04:53:54,440 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2025-02-06 04:53:54,440 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2025-02-06 04:53:54,440 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-02-06 04:53:54,440 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-06 04:53:54,440 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2025-02-06 04:53:54,440 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2025-02-06 04:53:54,440 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2025-02-06 04:53:54,441 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2025-02-06 04:53:54,441 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2025-02-06 04:53:54,441 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2025-02-06 04:53:54,441 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2025-02-06 04:53:54,441 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_impl [2025-02-06 04:53:54,441 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_impl [2025-02-06 04:53:54,441 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-06 04:53:54,441 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-06 04:53:54,441 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2025-02-06 04:53:54,442 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2025-02-06 04:53:54,442 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2025-02-06 04:53:54,442 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2025-02-06 04:53:54,442 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2025-02-06 04:53:54,442 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2025-02-06 04:53:54,442 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2025-02-06 04:53:54,442 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2025-02-06 04:53:54,443 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2025-02-06 04:53:54,443 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2025-02-06 04:53:54,443 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#6 [2025-02-06 04:53:54,443 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_length [2025-02-06 04:53:54,443 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_length [2025-02-06 04:53:54,443 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2025-02-06 04:53:54,443 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2025-02-06 04:53:54,443 INFO L130 BoogieDeclarations]: Found specification of procedure my_memcpy [2025-02-06 04:53:54,443 INFO L138 BoogieDeclarations]: Found implementation of procedure my_memcpy [2025-02-06 04:53:54,443 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-02-06 04:53:54,443 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2025-02-06 04:53:54,443 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2025-02-06 04:53:54,443 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2025-02-06 04:53:54,443 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2025-02-06 04:53:54,443 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2025-02-06 04:53:54,443 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2025-02-06 04:53:54,443 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2025-02-06 04:53:54,443 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2025-02-06 04:53:54,443 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2025-02-06 04:53:54,443 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2025-02-06 04:53:54,443 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2025-02-06 04:53:54,443 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2025-02-06 04:53:54,443 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2025-02-06 04:53:54,444 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#6 [2025-02-06 04:53:54,444 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_get_at_ptr [2025-02-06 04:53:54,444 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_get_at_ptr [2025-02-06 04:53:54,444 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2025-02-06 04:53:54,444 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2025-02-06 04:53:54,444 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2025-02-06 04:53:54,444 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2025-02-06 04:53:54,444 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-02-06 04:53:54,444 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-02-06 04:53:54,444 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2025-02-06 04:53:54,444 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2025-02-06 04:53:54,444 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2025-02-06 04:53:54,444 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2025-02-06 04:53:54,444 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2025-02-06 04:53:54,444 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_array_list_has_allocated_data_member [2025-02-06 04:53:54,444 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_array_list_has_allocated_data_member [2025-02-06 04:53:54,444 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-02-06 04:53:54,444 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-02-06 04:53:54,444 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-02-06 04:53:54,444 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2025-02-06 04:53:54,444 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2025-02-06 04:53:54,444 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2025-02-06 04:53:54,444 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2025-02-06 04:53:54,702 INFO L257 CfgBuilder]: Building ICFG [2025-02-06 04:53:54,704 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-06 04:53:54,735 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L2782: havoc #t~malloc77.base, #t~malloc77.offset; [2025-02-06 04:53:54,762 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L2588: havoc #t~ret57#1; [2025-02-06 04:53:54,786 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L267: havoc nondet_uint8_t_#t~nondet10#1; [2025-02-06 04:53:54,876 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 04:53:54,881 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L261: havoc #t~nondet4; [2025-02-06 04:53:54,913 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L3527: havoc #t~ret286; [2025-02-06 04:53:54,920 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L7364: havoc #t~ret682.base, #t~ret682.offset; [2025-02-06 04:54:00,148 INFO L? ?]: Removed 107 outVars from TransFormulas that were not future-live. [2025-02-06 04:54:00,148 INFO L308 CfgBuilder]: Performing block encoding [2025-02-06 04:54:00,159 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-06 04:54:00,159 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-06 04:54:00,159 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 04:54:00 BoogieIcfgContainer [2025-02-06 04:54:00,159 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-06 04:54:00,164 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-06 04:54:00,165 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-06 04:54:00,168 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-06 04:54:00,168 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.02 04:53:52" (1/3) ... [2025-02-06 04:54:00,169 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@926ba77 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.02 04:54:00, skipping insertion in model container [2025-02-06 04:54:00,169 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 04:53:54" (2/3) ... [2025-02-06 04:54:00,170 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@926ba77 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.02 04:54:00, skipping insertion in model container [2025-02-06 04:54:00,170 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 04:54:00" (3/3) ... [2025-02-06 04:54:00,171 INFO L128 eAbstractionObserver]: Analyzing ICFG aws_array_list_swap_harness_negated.i [2025-02-06 04:54:00,184 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-06 04:54:00,186 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG aws_array_list_swap_harness_negated.i that has 16 procedures, 178 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2025-02-06 04:54:00,229 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-06 04:54:00,237 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;@6ee68dd8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-06 04:54:00,237 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-02-06 04:54:00,240 INFO L276 IsEmpty]: Start isEmpty. Operand has 178 states, 100 states have (on average 1.16) internal successors, (116), 101 states have internal predecessors, (116), 61 states have call successors, (61), 15 states have call predecessors, (61), 15 states have return successors, (61), 61 states have call predecessors, (61), 61 states have call successors, (61) [2025-02-06 04:54:00,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2025-02-06 04:54:00,245 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 04:54:00,246 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 04:54:00,246 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-06 04:54:00,249 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 04:54:00,249 INFO L85 PathProgramCache]: Analyzing trace with hash 206988999, now seen corresponding path program 1 times [2025-02-06 04:54:00,254 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 04:54:00,255 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1215488865] [2025-02-06 04:54:00,255 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 04:54:00,255 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 04:54:04,384 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 69 statements into 1 equivalence classes. [2025-02-06 04:54:04,668 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 69 of 69 statements. [2025-02-06 04:54:04,668 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 04:54:04,668 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 04:54:05,688 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2025-02-06 04:54:05,689 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 04:54:05,689 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1215488865] [2025-02-06 04:54:05,690 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1215488865] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 04:54:05,691 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1812840165] [2025-02-06 04:54:05,691 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 04:54:05,691 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 04:54:05,691 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 04:54:05,694 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 04:54:05,717 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 04:54:09,641 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 69 statements into 1 equivalence classes. [2025-02-06 04:54:10,069 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 69 of 69 statements. [2025-02-06 04:54:10,070 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 04:54:10,070 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 04:54:10,090 INFO L256 TraceCheckSpWp]: Trace formula consists of 4018 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-02-06 04:54:10,098 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 04:54:10,706 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2025-02-06 04:54:10,707 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 04:54:10,707 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1812840165] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 04:54:10,707 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-06 04:54:10,707 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [5] total 9 [2025-02-06 04:54:10,709 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [798525254] [2025-02-06 04:54:10,709 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 04:54:10,712 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-06 04:54:10,713 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 04:54:10,726 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-06 04:54:10,728 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2025-02-06 04:54:10,730 INFO L87 Difference]: Start difference. First operand has 178 states, 100 states have (on average 1.16) internal successors, (116), 101 states have internal predecessors, (116), 61 states have call successors, (61), 15 states have call predecessors, (61), 15 states have return successors, (61), 61 states have call predecessors, (61), 61 states have call successors, (61) Second operand has 6 states, 6 states have (on average 5.5) internal successors, (33), 6 states have internal predecessors, (33), 3 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2025-02-06 04:54:13,211 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 04:54:13,212 INFO L93 Difference]: Finished difference Result 351 states and 522 transitions. [2025-02-06 04:54:13,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-06 04:54:13,214 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.5) internal successors, (33), 6 states have internal predecessors, (33), 3 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 69 [2025-02-06 04:54:13,214 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 04:54:13,220 INFO L225 Difference]: With dead ends: 351 [2025-02-06 04:54:13,220 INFO L226 Difference]: Without dead ends: 175 [2025-02-06 04:54:13,225 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 66 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 04:54:13,228 INFO L435 NwaCegarLoop]: 180 mSDtfsCounter, 239 mSDsluCounter, 491 mSDsCounter, 0 mSdLazyCounter, 198 mSolverCounterSat, 72 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 244 SdHoareTripleChecker+Valid, 671 SdHoareTripleChecker+Invalid, 270 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 72 IncrementalHoareTripleChecker+Valid, 198 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2025-02-06 04:54:13,229 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [244 Valid, 671 Invalid, 270 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [72 Valid, 198 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2025-02-06 04:54:13,241 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 175 states. [2025-02-06 04:54:13,272 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 175 to 175. [2025-02-06 04:54:13,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 175 states, 97 states have (on average 1.1443298969072164) internal successors, (111), 99 states have internal predecessors, (111), 61 states have call successors, (61), 15 states have call predecessors, (61), 16 states have return successors, (68), 60 states have call predecessors, (68), 60 states have call successors, (68) [2025-02-06 04:54:13,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 175 states to 175 states and 240 transitions. [2025-02-06 04:54:13,285 INFO L78 Accepts]: Start accepts. Automaton has 175 states and 240 transitions. Word has length 69 [2025-02-06 04:54:13,286 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 04:54:13,286 INFO L471 AbstractCegarLoop]: Abstraction has 175 states and 240 transitions. [2025-02-06 04:54:13,286 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.5) internal successors, (33), 6 states have internal predecessors, (33), 3 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2025-02-06 04:54:13,286 INFO L276 IsEmpty]: Start isEmpty. Operand 175 states and 240 transitions. [2025-02-06 04:54:13,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2025-02-06 04:54:13,288 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 04:54:13,289 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 04:54:13,305 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 04:54:13,493 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 04:54:13,493 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-06 04:54:13,494 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 04:54:13,494 INFO L85 PathProgramCache]: Analyzing trace with hash -2095157621, now seen corresponding path program 1 times [2025-02-06 04:54:13,494 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 04:54:13,494 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [558500046] [2025-02-06 04:54:13,494 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 04:54:13,494 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 04:54:17,235 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 84 statements into 1 equivalence classes. [2025-02-06 04:54:17,390 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 84 of 84 statements. [2025-02-06 04:54:17,390 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 04:54:17,390 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 04:54:18,789 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2025-02-06 04:54:18,789 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 04:54:18,789 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [558500046] [2025-02-06 04:54:18,790 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [558500046] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 04:54:18,791 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1084739171] [2025-02-06 04:54:18,791 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 04:54:18,791 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 04:54:18,791 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 04:54:18,793 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 04:54:18,795 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 04:54:22,828 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 84 statements into 1 equivalence classes. [2025-02-06 04:54:23,191 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 84 of 84 statements. [2025-02-06 04:54:23,191 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 04:54:23,191 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 04:54:23,210 INFO L256 TraceCheckSpWp]: Trace formula consists of 4145 conjuncts, 7 conjuncts are in the unsatisfiable core [2025-02-06 04:54:23,216 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 04:54:24,429 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2025-02-06 04:54:24,429 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 04:54:24,429 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1084739171] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 04:54:24,430 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-06 04:54:24,430 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [7] total 13 [2025-02-06 04:54:24,430 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [962062371] [2025-02-06 04:54:24,430 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 04:54:24,431 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-02-06 04:54:24,431 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 04:54:24,431 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-02-06 04:54:24,431 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2025-02-06 04:54:24,431 INFO L87 Difference]: Start difference. First operand 175 states and 240 transitions. Second operand has 8 states, 8 states have (on average 5.875) internal successors, (47), 7 states have internal predecessors, (47), 4 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (13), 4 states have call predecessors, (13), 4 states have call successors, (13) [2025-02-06 04:54:28,432 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 04:54:28,432 INFO L93 Difference]: Finished difference Result 322 states and 451 transitions. [2025-02-06 04:54:28,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-02-06 04:54:28,432 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.875) internal successors, (47), 7 states have internal predecessors, (47), 4 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (13), 4 states have call predecessors, (13), 4 states have call successors, (13) Word has length 84 [2025-02-06 04:54:28,433 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 04:54:28,435 INFO L225 Difference]: With dead ends: 322 [2025-02-06 04:54:28,435 INFO L226 Difference]: Without dead ends: 187 [2025-02-06 04:54:28,436 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 81 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=54, Invalid=252, Unknown=0, NotChecked=0, Total=306 [2025-02-06 04:54:28,436 INFO L435 NwaCegarLoop]: 171 mSDtfsCounter, 254 mSDsluCounter, 812 mSDsCounter, 0 mSdLazyCounter, 335 mSolverCounterSat, 86 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 259 SdHoareTripleChecker+Valid, 983 SdHoareTripleChecker+Invalid, 421 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 86 IncrementalHoareTripleChecker+Valid, 335 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2025-02-06 04:54:28,436 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [259 Valid, 983 Invalid, 421 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [86 Valid, 335 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2025-02-06 04:54:28,437 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 187 states. [2025-02-06 04:54:28,447 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 187 to 187. [2025-02-06 04:54:28,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 187 states, 103 states have (on average 1.145631067961165) internal successors, (118), 105 states have internal predecessors, (118), 66 states have call successors, (66), 16 states have call predecessors, (66), 17 states have return successors, (73), 65 states have call predecessors, (73), 65 states have call successors, (73) [2025-02-06 04:54:28,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 187 states to 187 states and 257 transitions. [2025-02-06 04:54:28,452 INFO L78 Accepts]: Start accepts. Automaton has 187 states and 257 transitions. Word has length 84 [2025-02-06 04:54:28,452 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 04:54:28,452 INFO L471 AbstractCegarLoop]: Abstraction has 187 states and 257 transitions. [2025-02-06 04:54:28,452 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.875) internal successors, (47), 7 states have internal predecessors, (47), 4 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (13), 4 states have call predecessors, (13), 4 states have call successors, (13) [2025-02-06 04:54:28,452 INFO L276 IsEmpty]: Start isEmpty. Operand 187 states and 257 transitions. [2025-02-06 04:54:28,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2025-02-06 04:54:28,454 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 04:54:28,455 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 04:54:28,471 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 04:54:28,655 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 04:54:28,656 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-06 04:54:28,656 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 04:54:28,656 INFO L85 PathProgramCache]: Analyzing trace with hash -1846006283, now seen corresponding path program 1 times [2025-02-06 04:54:28,656 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 04:54:28,656 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [643962680] [2025-02-06 04:54:28,656 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 04:54:28,656 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 04:54:32,011 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 114 statements into 1 equivalence classes. [2025-02-06 04:54:33,126 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 114 of 114 statements. [2025-02-06 04:54:33,127 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 04:54:33,127 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 04:54:40,088 INFO L134 CoverageAnalysis]: Checked inductivity of 97 backedges. 9 proven. 21 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2025-02-06 04:54:40,088 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 04:54:40,088 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [643962680] [2025-02-06 04:54:40,088 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [643962680] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 04:54:40,088 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1217824344] [2025-02-06 04:54:40,088 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 04:54:40,088 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 04:54:40,088 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 04:54:40,090 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 04:54:40,091 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 04:54:43,935 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 114 statements into 1 equivalence classes.