./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/aws-c-common/aws_array_list_get_at_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 48c9605d 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_get_at_harness.i -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 077859a827b9835fc70ffe4bef1d8360e024e130f860bf1f8321474f6266da95 --- Real Ultimate output --- This is Ultimate 0.3.0-?-48c9605-m [2025-02-08 01:27:23,501 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-08 01:27:23,560 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2025-02-08 01:27:23,565 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-08 01:27:23,565 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-08 01:27:23,583 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-08 01:27:23,588 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-08 01:27:23,588 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-08 01:27:23,588 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-08 01:27:23,588 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-08 01:27:23,589 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-08 01:27:23,589 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-08 01:27:23,589 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-08 01:27:23,589 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-08 01:27:23,589 INFO L153 SettingsManager]: * Use SBE=true [2025-02-08 01:27:23,589 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-08 01:27:23,590 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-08 01:27:23,590 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-08 01:27:23,590 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-08 01:27:23,590 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-08 01:27:23,590 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-08 01:27:23,590 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-08 01:27:23,590 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-08 01:27:23,590 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-08 01:27:23,590 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-08 01:27:23,591 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-08 01:27:23,591 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-08 01:27:23,591 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-08 01:27:23,591 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-08 01:27:23,591 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 01:27:23,591 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-08 01:27:23,591 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-08 01:27:23,591 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-02-08 01:27:23,592 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-02-08 01:27:23,592 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-08 01:27:23,592 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-08 01:27:23,592 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-08 01:27:23,592 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-08 01:27:23,592 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-08 01:27:23,592 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-08 01:27:23,592 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 -> 077859a827b9835fc70ffe4bef1d8360e024e130f860bf1f8321474f6266da95 [2025-02-08 01:27:23,934 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-08 01:27:23,940 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-08 01:27:23,942 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-08 01:27:23,942 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-08 01:27:23,942 INFO L274 PluginConnector]: CDTParser initialized [2025-02-08 01:27:23,944 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_array_list_get_at_harness.i [2025-02-08 01:27:25,152 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/f91a1b292/c63458c889b144d4a89a299b497983cc/FLAGec43af3f5 [2025-02-08 01:27:25,583 INFO L384 CDTParser]: Found 1 translation units. [2025-02-08 01:27:25,585 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_array_list_get_at_harness.i [2025-02-08 01:27:25,613 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/f91a1b292/c63458c889b144d4a89a299b497983cc/FLAGec43af3f5 [2025-02-08 01:27:25,733 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/f91a1b292/c63458c889b144d4a89a299b497983cc [2025-02-08 01:27:25,735 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-08 01:27:25,736 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-08 01:27:25,738 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-08 01:27:25,738 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-08 01:27:25,741 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-08 01:27:25,743 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 01:27:25" (1/1) ... [2025-02-08 01:27:25,743 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7d803f80 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:27:25, skipping insertion in model container [2025-02-08 01:27:25,744 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 01:27:25" (1/1) ... [2025-02-08 01:27:25,806 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-08 01:27:26,003 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_get_at_harness.i[4495,4508] [2025-02-08 01:27:26,011 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_get_at_harness.i[4555,4568] [2025-02-08 01:27:26,451 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:27:26,452 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:27:26,452 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:27:26,452 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:27:26,453 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:27:26,465 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:27:26,466 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:27:26,470 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:27:26,471 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:27:26,473 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:27:26,473 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:27:26,477 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:27:26,478 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:27:26,897 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:27:26,901 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:27:26,946 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:27:26,946 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:27:26,950 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 01:27:26,972 INFO L200 MainTranslator]: Completed pre-run [2025-02-08 01:27:26,982 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_get_at_harness.i[4495,4508] [2025-02-08 01:27:26,982 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_get_at_harness.i[4555,4568] [2025-02-08 01:27:27,036 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:27:27,038 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:27:27,038 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:27:27,038 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:27:27,039 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:27:27,049 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:27:27,051 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:27:27,052 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:27:27,053 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:27:27,053 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:27:27,054 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:27:27,054 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:27:27,054 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:27:27,135 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:27:27,142 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:27:27,151 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [7769-7780] [2025-02-08 01:27:27,170 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:27:27,170 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:27:27,171 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 01:27:27,366 INFO L204 MainTranslator]: Completed translation [2025-02-08 01:27:27,367 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:27:27 WrapperNode [2025-02-08 01:27:27,367 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-08 01:27:27,368 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-08 01:27:27,368 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-08 01:27:27,368 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-08 01:27:27,372 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:27:27" (1/1) ... [2025-02-08 01:27:27,435 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:27:27" (1/1) ... [2025-02-08 01:27:27,528 INFO L138 Inliner]: procedures = 680, calls = 1679, calls flagged for inlining = 52, calls inlined = 8, statements flattened = 656 [2025-02-08 01:27:27,528 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-08 01:27:27,529 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-08 01:27:27,529 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-08 01:27:27,529 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-08 01:27:27,535 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:27:27" (1/1) ... [2025-02-08 01:27:27,535 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:27:27" (1/1) ... [2025-02-08 01:27:27,540 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:27:27" (1/1) ... [2025-02-08 01:27:27,598 INFO L175 MemorySlicer]: Split 313 memory accesses to 6 slices as follows [238, 2, 6, 3, 55, 9]. 76 percent of accesses are in the largest equivalence class. The 24 initializations are split as follows [6, 2, 0, 1, 10, 5]. The 239 writes are split as follows [232, 0, 2, 1, 3, 1]. [2025-02-08 01:27:27,600 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:27:27" (1/1) ... [2025-02-08 01:27:27,600 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:27:27" (1/1) ... [2025-02-08 01:27:27,631 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:27:27" (1/1) ... [2025-02-08 01:27:27,633 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:27:27" (1/1) ... [2025-02-08 01:27:27,644 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:27:27" (1/1) ... [2025-02-08 01:27:27,651 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:27:27" (1/1) ... [2025-02-08 01:27:27,661 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-08 01:27:27,664 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-08 01:27:27,664 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-08 01:27:27,665 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-08 01:27:27,666 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:27:27" (1/1) ... [2025-02-08 01:27:27,671 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 01:27:27,681 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 01:27:27,693 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) [2025-02-08 01:27:27,697 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 [2025-02-08 01:27:27,714 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-02-08 01:27:27,714 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_bounded [2025-02-08 01:27:27,714 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_bounded [2025-02-08 01:27:27,714 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_valid [2025-02-08 01:27:27,714 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_valid [2025-02-08 01:27:27,714 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2025-02-08 01:27:27,715 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2025-02-08 01:27:27,715 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2025-02-08 01:27:27,715 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2025-02-08 01:27:27,715 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2025-02-08 01:27:27,715 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2025-02-08 01:27:27,715 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2025-02-08 01:27:27,715 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2025-02-08 01:27:27,716 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-02-08 01:27:27,716 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-02-08 01:27:27,716 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2025-02-08 01:27:27,716 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2025-02-08 01:27:27,716 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2025-02-08 01:27:27,716 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2025-02-08 01:27:27,716 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2025-02-08 01:27:27,716 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2025-02-08 01:27:27,716 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2025-02-08 01:27:27,716 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2025-02-08 01:27:27,716 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-02-08 01:27:27,716 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-08 01:27:27,716 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2025-02-08 01:27:27,716 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2025-02-08 01:27:27,716 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2025-02-08 01:27:27,717 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2025-02-08 01:27:27,717 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2025-02-08 01:27:27,717 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2025-02-08 01:27:27,717 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_impl [2025-02-08 01:27:27,717 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_impl [2025-02-08 01:27:27,717 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-08 01:27:27,717 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-08 01:27:27,717 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2025-02-08 01:27:27,717 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2025-02-08 01:27:27,717 INFO L130 BoogieDeclarations]: Found specification of procedure assert_byte_from_buffer_matches [2025-02-08 01:27:27,717 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_byte_from_buffer_matches [2025-02-08 01:27:27,717 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_size_t [2025-02-08 01:27:27,717 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_size_t [2025-02-08 01:27:27,717 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2025-02-08 01:27:27,717 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2025-02-08 01:27:27,717 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2025-02-08 01:27:27,717 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2025-02-08 01:27:27,717 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2025-02-08 01:27:27,717 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2025-02-08 01:27:27,717 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2025-02-08 01:27:27,717 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2025-02-08 01:27:27,717 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_malloc [2025-02-08 01:27:27,717 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_malloc [2025-02-08 01:27:27,717 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_length [2025-02-08 01:27:27,717 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_length [2025-02-08 01:27:27,717 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2025-02-08 01:27:27,717 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2025-02-08 01:27:27,717 INFO L130 BoogieDeclarations]: Found specification of procedure my_memcpy [2025-02-08 01:27:27,717 INFO L138 BoogieDeclarations]: Found implementation of procedure my_memcpy [2025-02-08 01:27:27,717 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-02-08 01:27:27,717 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2025-02-08 01:27:27,717 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2025-02-08 01:27:27,717 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2025-02-08 01:27:27,717 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2025-02-08 01:27:27,717 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2025-02-08 01:27:27,717 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2025-02-08 01:27:27,717 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2025-02-08 01:27:27,717 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2025-02-08 01:27:27,717 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2025-02-08 01:27:27,717 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2025-02-08 01:27:27,717 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2025-02-08 01:27:27,717 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2025-02-08 01:27:27,717 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2025-02-08 01:27:27,717 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2025-02-08 01:27:27,717 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2025-02-08 01:27:27,717 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2025-02-08 01:27:27,718 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-02-08 01:27:27,718 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-02-08 01:27:27,718 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2025-02-08 01:27:27,718 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2025-02-08 01:27:27,718 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2025-02-08 01:27:27,718 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2025-02-08 01:27:27,718 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_array_list_has_allocated_data_member [2025-02-08 01:27:27,718 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_array_list_has_allocated_data_member [2025-02-08 01:27:27,718 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-02-08 01:27:27,718 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-02-08 01:27:27,718 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-02-08 01:27:27,718 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2025-02-08 01:27:27,718 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2025-02-08 01:27:27,718 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2025-02-08 01:27:27,977 INFO L257 CfgBuilder]: Building ICFG [2025-02-08 01:27:27,979 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-08 01:27:28,024 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L2782: havoc #t~malloc77.base, #t~malloc77.offset; [2025-02-08 01:27:28,040 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L263: havoc #t~nondet6; [2025-02-08 01:27:28,056 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L2588: havoc #t~ret57#1; [2025-02-08 01:27:28,093 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L2796: havoc #t~ret81;havoc #t~ite83.base, #t~ite83.offset;havoc #t~ret82.base, #t~ret82.offset; [2025-02-08 01:27:28,175 INFO L1324 $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; [2025-02-08 01:27:28,180 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L261: havoc #t~nondet4; [2025-02-08 01:27:28,206 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L7390: havoc #t~ret683.base, #t~ret683.offset; [2025-02-08 01:27:33,539 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L3512: havoc aws_array_list_get_at_#t~ret279#1; [2025-02-08 01:27:33,599 INFO L? ?]: Removed 122 outVars from TransFormulas that were not future-live. [2025-02-08 01:27:33,599 INFO L308 CfgBuilder]: Performing block encoding [2025-02-08 01:27:33,618 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-08 01:27:33,618 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-08 01:27:33,618 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 01:27:33 BoogieIcfgContainer [2025-02-08 01:27:33,619 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-08 01:27:33,622 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-08 01:27:33,625 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-08 01:27:33,629 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-08 01:27:33,629 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.02 01:27:25" (1/3) ... [2025-02-08 01:27:33,634 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@350f9c2c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.02 01:27:33, skipping insertion in model container [2025-02-08 01:27:33,634 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:27:27" (2/3) ... [2025-02-08 01:27:33,634 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@350f9c2c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.02 01:27:33, skipping insertion in model container [2025-02-08 01:27:33,634 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 01:27:33" (3/3) ... [2025-02-08 01:27:33,635 INFO L128 eAbstractionObserver]: Analyzing ICFG aws_array_list_get_at_harness.i [2025-02-08 01:27:33,655 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-08 01:27:33,656 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG aws_array_list_get_at_harness.i that has 18 procedures, 181 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2025-02-08 01:27:33,703 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-08 01:27:33,711 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;@262ab5da, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-08 01:27:33,714 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-02-08 01:27:33,720 INFO L276 IsEmpty]: Start isEmpty. Operand has 181 states, 105 states have (on average 1.2095238095238094) internal successors, (127), 108 states have internal predecessors, (127), 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) [2025-02-08 01:27:33,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2025-02-08 01:27:33,731 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 01:27:33,732 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 5, 5, 5, 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] [2025-02-08 01:27:33,732 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-08 01:27:33,736 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 01:27:33,737 INFO L85 PathProgramCache]: Analyzing trace with hash -1227170942, now seen corresponding path program 1 times [2025-02-08 01:27:33,742 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 01:27:33,743 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [935505623] [2025-02-08 01:27:33,743 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 01:27:33,743 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 01:27:38,429 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 133 statements into 1 equivalence classes. [2025-02-08 01:27:38,711 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 133 of 133 statements. [2025-02-08 01:27:38,712 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 01:27:38,712 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 01:27:39,158 INFO L134 CoverageAnalysis]: Checked inductivity of 223 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 205 trivial. 0 not checked. [2025-02-08 01:27:39,159 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 01:27:39,159 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [935505623] [2025-02-08 01:27:39,160 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [935505623] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 01:27:39,161 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [900601414] [2025-02-08 01:27:39,161 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 01:27:39,161 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 01:27:39,161 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 01:27:39,171 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) [2025-02-08 01:27:39,175 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 [2025-02-08 01:27:43,438 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 133 statements into 1 equivalence classes. [2025-02-08 01:27:43,876 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 133 of 133 statements. [2025-02-08 01:27:43,876 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 01:27:43,876 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 01:27:43,896 INFO L256 TraceCheckSpWp]: Trace formula consists of 4280 conjuncts, 1 conjuncts are in the unsatisfiable core [2025-02-08 01:27:43,903 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 01:27:43,916 INFO L134 CoverageAnalysis]: Checked inductivity of 223 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 205 trivial. 0 not checked. [2025-02-08 01:27:43,916 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-08 01:27:43,917 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [900601414] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 01:27:43,917 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-08 01:27:43,917 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2025-02-08 01:27:43,918 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1949586553] [2025-02-08 01:27:43,919 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 01:27:43,921 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-02-08 01:27:43,922 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 01:27:43,933 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-02-08 01:27:43,934 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-02-08 01:27:43,936 INFO L87 Difference]: Start difference. First operand has 181 states, 105 states have (on average 1.2095238095238094) internal successors, (127), 108 states have internal predecessors, (127), 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, (24), 2 states have call predecessors, (24), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2025-02-08 01:27:43,961 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 01:27:43,962 INFO L93 Difference]: Finished difference Result 356 states and 502 transitions. [2025-02-08 01:27:43,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-02-08 01:27:43,964 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, (24), 2 states have call predecessors, (24), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 133 [2025-02-08 01:27:43,964 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 01:27:43,969 INFO L225 Difference]: With dead ends: 356 [2025-02-08 01:27:43,969 INFO L226 Difference]: Without dead ends: 170 [2025-02-08 01:27:43,972 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 134 GetRequests, 134 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-02-08 01:27:43,974 INFO L435 NwaCegarLoop]: 235 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, 235 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 [2025-02-08 01:27:43,975 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 235 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-08 01:27:43,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 170 states. [2025-02-08 01:27:44,001 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 170 to 170. [2025-02-08 01:27:44,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 170 states, 99 states have (on average 1.1616161616161615) internal successors, (115), 100 states have internal predecessors, (115), 54 states have call successors, (54), 17 states have call predecessors, (54), 16 states have return successors, (52), 52 states have call predecessors, (52), 52 states have call successors, (52) [2025-02-08 01:27:44,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 170 states to 170 states and 221 transitions. [2025-02-08 01:27:44,008 INFO L78 Accepts]: Start accepts. Automaton has 170 states and 221 transitions. Word has length 133 [2025-02-08 01:27:44,008 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 01:27:44,008 INFO L471 AbstractCegarLoop]: Abstraction has 170 states and 221 transitions. [2025-02-08 01:27:44,008 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, (24), 2 states have call predecessors, (24), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2025-02-08 01:27:44,009 INFO L276 IsEmpty]: Start isEmpty. Operand 170 states and 221 transitions. [2025-02-08 01:27:44,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2025-02-08 01:27:44,011 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 01:27:44,011 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 5, 5, 5, 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] [2025-02-08 01:27:44,025 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2025-02-08 01:27:44,214 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 [2025-02-08 01:27:44,214 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-08 01:27:44,215 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 01:27:44,215 INFO L85 PathProgramCache]: Analyzing trace with hash -439629312, now seen corresponding path program 1 times [2025-02-08 01:27:44,215 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 01:27:44,215 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2013753268] [2025-02-08 01:27:44,215 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 01:27:44,215 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 01:27:48,069 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 133 statements into 1 equivalence classes. [2025-02-08 01:27:48,164 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 133 of 133 statements. [2025-02-08 01:27:48,167 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 01:27:48,167 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 01:27:49,206 INFO L134 CoverageAnalysis]: Checked inductivity of 223 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 211 trivial. 0 not checked. [2025-02-08 01:27:49,207 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 01:27:49,207 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2013753268] [2025-02-08 01:27:49,207 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2013753268] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 01:27:49,207 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [526925398] [2025-02-08 01:27:49,207 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 01:27:49,207 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 01:27:49,207 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 01:27:49,213 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) [2025-02-08 01:27:49,214 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 [2025-02-08 01:27:53,406 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 133 statements into 1 equivalence classes. [2025-02-08 01:27:53,802 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 133 of 133 statements. [2025-02-08 01:27:53,803 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 01:27:53,803 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 01:27:53,824 INFO L256 TraceCheckSpWp]: Trace formula consists of 4280 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-02-08 01:27:53,837 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 01:27:54,333 INFO L134 CoverageAnalysis]: Checked inductivity of 223 backedges. 80 proven. 0 refuted. 0 times theorem prover too weak. 143 trivial. 0 not checked. [2025-02-08 01:27:54,334 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-08 01:27:54,334 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [526925398] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 01:27:54,334 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-08 01:27:54,334 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 8 [2025-02-08 01:27:54,334 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1432381223] [2025-02-08 01:27:54,334 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 01:27:54,335 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-08 01:27:54,335 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 01:27:54,336 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-08 01:27:54,336 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2025-02-08 01:27:54,336 INFO L87 Difference]: Start difference. First operand 170 states and 221 transitions. Second operand has 5 states, 5 states have (on average 10.4) internal successors, (52), 5 states have internal predecessors, (52), 3 states have call successors, (24), 2 states have call predecessors, (24), 3 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2025-02-08 01:27:55,226 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 01:27:55,227 INFO L93 Difference]: Finished difference Result 314 states and 414 transitions. [2025-02-08 01:27:55,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-08 01:27:55,228 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 5 states have internal predecessors, (52), 3 states have call successors, (24), 2 states have call predecessors, (24), 3 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) Word has length 133 [2025-02-08 01:27:55,228 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 01:27:55,231 INFO L225 Difference]: With dead ends: 314 [2025-02-08 01:27:55,231 INFO L226 Difference]: Without dead ends: 172 [2025-02-08 01:27:55,232 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 137 GetRequests, 131 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2025-02-08 01:27:55,233 INFO L435 NwaCegarLoop]: 202 mSDtfsCounter, 47 mSDsluCounter, 519 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 721 SdHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2025-02-08 01:27:55,233 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [81 Valid, 721 Invalid, 80 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2025-02-08 01:27:55,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 172 states. [2025-02-08 01:27:55,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 172 to 172. [2025-02-08 01:27:55,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 172 states, 100 states have (on average 1.16) internal successors, (116), 102 states have internal predecessors, (116), 54 states have call successors, (54), 17 states have call predecessors, (54), 17 states have return successors, (57), 52 states have call predecessors, (57), 52 states have call successors, (57) [2025-02-08 01:27:55,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172 states to 172 states and 227 transitions. [2025-02-08 01:27:55,254 INFO L78 Accepts]: Start accepts. Automaton has 172 states and 227 transitions. Word has length 133 [2025-02-08 01:27:55,254 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 01:27:55,254 INFO L471 AbstractCegarLoop]: Abstraction has 172 states and 227 transitions. [2025-02-08 01:27:55,254 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 5 states have internal predecessors, (52), 3 states have call successors, (24), 2 states have call predecessors, (24), 3 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2025-02-08 01:27:55,254 INFO L276 IsEmpty]: Start isEmpty. Operand 172 states and 227 transitions. [2025-02-08 01:27:55,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2025-02-08 01:27:55,256 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 01:27:55,256 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, 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] [2025-02-08 01:27:55,270 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2025-02-08 01:27:55,457 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 [2025-02-08 01:27:55,457 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-08 01:27:55,457 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 01:27:55,458 INFO L85 PathProgramCache]: Analyzing trace with hash -1231924606, now seen corresponding path program 1 times [2025-02-08 01:27:55,458 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 01:27:55,458 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1874508991] [2025-02-08 01:27:55,458 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 01:27:55,458 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 01:27:59,481 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 161 statements into 1 equivalence classes. [2025-02-08 01:27:59,657 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 161 of 161 statements. [2025-02-08 01:27:59,657 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 01:27:59,657 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 01:28:00,803 INFO L134 CoverageAnalysis]: Checked inductivity of 237 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 225 trivial. 0 not checked. [2025-02-08 01:28:00,804 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 01:28:00,804 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1874508991] [2025-02-08 01:28:00,804 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1874508991] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 01:28:00,804 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [486591121] [2025-02-08 01:28:00,804 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 01:28:00,804 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 01:28:00,804 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 01:28:00,806 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) [2025-02-08 01:28:00,808 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 [2025-02-08 01:28:04,883 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 161 statements into 1 equivalence classes. [2025-02-08 01:28:05,314 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 161 of 161 statements. [2025-02-08 01:28:05,314 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 01:28:05,315 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 01:28:05,335 INFO L256 TraceCheckSpWp]: Trace formula consists of 4534 conjuncts, 7 conjuncts are in the unsatisfiable core [2025-02-08 01:28:05,343 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 01:28:06,307 INFO L134 CoverageAnalysis]: Checked inductivity of 237 backedges. 126 proven. 0 refuted. 0 times theorem prover too weak. 111 trivial. 0 not checked. [2025-02-08 01:28:06,307 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-08 01:28:06,308 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [486591121] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 01:28:06,308 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-08 01:28:06,308 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 10 [2025-02-08 01:28:06,308 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1435687856] [2025-02-08 01:28:06,308 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 01:28:06,308 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-08 01:28:06,308 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 01:28:06,309 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-08 01:28:06,309 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2025-02-08 01:28:06,309 INFO L87 Difference]: Start difference. First operand 172 states and 227 transitions. Second operand has 6 states, 5 states have (on average 13.0) internal successors, (65), 6 states have internal predecessors, (65), 4 states have call successors, (26), 2 states have call predecessors, (26), 3 states have return successors, (24), 3 states have call predecessors, (24), 4 states have call successors, (24) [2025-02-08 01:28:07,361 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 01:28:07,362 INFO L93 Difference]: Finished difference Result 274 states and 361 transitions. [2025-02-08 01:28:07,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-08 01:28:07,362 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 13.0) internal successors, (65), 6 states have internal predecessors, (65), 4 states have call successors, (26), 2 states have call predecessors, (26), 3 states have return successors, (24), 3 states have call predecessors, (24), 4 states have call successors, (24) Word has length 161 [2025-02-08 01:28:07,363 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 01:28:07,368 INFO L225 Difference]: With dead ends: 274 [2025-02-08 01:28:07,368 INFO L226 Difference]: Without dead ends: 172 [2025-02-08 01:28:07,369 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 167 GetRequests, 158 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2025-02-08 01:28:07,370 INFO L435 NwaCegarLoop]: 203 mSDtfsCounter, 48 mSDsluCounter, 705 mSDsCounter, 0 mSdLazyCounter, 91 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 908 SdHoareTripleChecker+Invalid, 113 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 91 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2025-02-08 01:28:07,370 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [60 Valid, 908 Invalid, 113 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 91 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2025-02-08 01:28:07,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 172 states. [2025-02-08 01:28:07,382 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 172 to 172. [2025-02-08 01:28:07,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 172 states, 100 states have (on average 1.16) internal successors, (116), 102 states have internal predecessors, (116), 54 states have call successors, (54), 17 states have call predecessors, (54), 17 states have return successors, (54), 52 states have call predecessors, (54), 52 states have call successors, (54) [2025-02-08 01:28:07,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172 states to 172 states and 224 transitions. [2025-02-08 01:28:07,387 INFO L78 Accepts]: Start accepts. Automaton has 172 states and 224 transitions. Word has length 161 [2025-02-08 01:28:07,388 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 01:28:07,388 INFO L471 AbstractCegarLoop]: Abstraction has 172 states and 224 transitions. [2025-02-08 01:28:07,388 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 13.0) internal successors, (65), 6 states have internal predecessors, (65), 4 states have call successors, (26), 2 states have call predecessors, (26), 3 states have return successors, (24), 3 states have call predecessors, (24), 4 states have call successors, (24) [2025-02-08 01:28:07,389 INFO L276 IsEmpty]: Start isEmpty. Operand 172 states and 224 transitions. [2025-02-08 01:28:07,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2025-02-08 01:28:07,390 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 01:28:07,390 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, 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] [2025-02-08 01:28:07,406 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2025-02-08 01:28:07,595 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 [2025-02-08 01:28:07,596 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-08 01:28:07,596 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 01:28:07,596 INFO L85 PathProgramCache]: Analyzing trace with hash -1847551229, now seen corresponding path program 2 times [2025-02-08 01:28:07,596 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 01:28:07,596 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1904888205] [2025-02-08 01:28:07,596 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-08 01:28:07,597 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 01:28:11,231 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 175 statements into 2 equivalence classes. [2025-02-08 01:28:11,611 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 175 of 175 statements. [2025-02-08 01:28:11,611 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-02-08 01:28:11,611 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 01:28:12,959 INFO L134 CoverageAnalysis]: Checked inductivity of 265 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 253 trivial. 0 not checked. [2025-02-08 01:28:12,960 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 01:28:12,960 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1904888205] [2025-02-08 01:28:12,960 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1904888205] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 01:28:12,960 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 01:28:12,960 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2025-02-08 01:28:12,960 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [439421287] [2025-02-08 01:28:12,960 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 01:28:12,961 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-02-08 01:28:12,961 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 01:28:12,961 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-02-08 01:28:12,961 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2025-02-08 01:28:12,961 INFO L87 Difference]: Start difference. First operand 172 states and 224 transitions. Second operand has 8 states, 8 states have (on average 7.5) internal successors, (60), 7 states have internal predecessors, (60), 5 states have call successors, (26), 3 states have call predecessors, (26), 2 states have return successors, (24), 5 states have call predecessors, (24), 4 states have call successors, (24) [2025-02-08 01:28:14,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 01:28:14,478 INFO L93 Difference]: Finished difference Result 263 states and 338 transitions. [2025-02-08 01:28:14,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-02-08 01:28:14,478 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.5) internal successors, (60), 7 states have internal predecessors, (60), 5 states have call successors, (26), 3 states have call predecessors, (26), 2 states have return successors, (24), 5 states have call predecessors, (24), 4 states have call successors, (24) Word has length 175 [2025-02-08 01:28:14,479 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 01:28:14,480 INFO L225 Difference]: With dead ends: 263 [2025-02-08 01:28:14,480 INFO L226 Difference]: Without dead ends: 170 [2025-02-08 01:28:14,481 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2025-02-08 01:28:14,482 INFO L435 NwaCegarLoop]: 201 mSDtfsCounter, 55 mSDsluCounter, 1082 mSDsCounter, 0 mSdLazyCounter, 133 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 1283 SdHoareTripleChecker+Invalid, 158 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 133 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2025-02-08 01:28:14,482 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [67 Valid, 1283 Invalid, 158 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 133 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2025-02-08 01:28:14,482 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 170 states. [2025-02-08 01:28:14,492 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 170 to 170. [2025-02-08 01:28:14,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 170 states, 99 states have (on average 1.1515151515151516) internal successors, (114), 100 states have internal predecessors, (114), 54 states have call successors, (54), 17 states have call predecessors, (54), 16 states have return successors, (52), 52 states have call predecessors, (52), 52 states have call successors, (52) [2025-02-08 01:28:14,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 170 states to 170 states and 220 transitions. [2025-02-08 01:28:14,496 INFO L78 Accepts]: Start accepts. Automaton has 170 states and 220 transitions. Word has length 175 [2025-02-08 01:28:14,497 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 01:28:14,497 INFO L471 AbstractCegarLoop]: Abstraction has 170 states and 220 transitions. [2025-02-08 01:28:14,497 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.5) internal successors, (60), 7 states have internal predecessors, (60), 5 states have call successors, (26), 3 states have call predecessors, (26), 2 states have return successors, (24), 5 states have call predecessors, (24), 4 states have call successors, (24) [2025-02-08 01:28:14,497 INFO L276 IsEmpty]: Start isEmpty. Operand 170 states and 220 transitions. [2025-02-08 01:28:14,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2025-02-08 01:28:14,499 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 01:28:14,500 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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] [2025-02-08 01:28:14,500 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-02-08 01:28:14,500 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-08 01:28:14,500 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 01:28:14,501 INFO L85 PathProgramCache]: Analyzing trace with hash 1790529123, now seen corresponding path program 1 times [2025-02-08 01:28:14,501 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 01:28:14,501 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2120749527] [2025-02-08 01:28:14,501 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 01:28:14,501 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 01:28:18,080 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 203 statements into 1 equivalence classes. [2025-02-08 01:28:18,167 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 203 of 203 statements. [2025-02-08 01:28:18,168 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 01:28:18,168 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 01:28:19,902 INFO L134 CoverageAnalysis]: Checked inductivity of 363 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 363 trivial. 0 not checked. [2025-02-08 01:28:19,903 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 01:28:19,903 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2120749527] [2025-02-08 01:28:19,903 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2120749527] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 01:28:19,903 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 01:28:19,903 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-02-08 01:28:19,903 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [182804919] [2025-02-08 01:28:19,903 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 01:28:19,903 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-02-08 01:28:19,904 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 01:28:19,904 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-02-08 01:28:19,904 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2025-02-08 01:28:19,905 INFO L87 Difference]: Start difference. First operand 170 states and 220 transitions. Second operand has 7 states, 7 states have (on average 8.0) internal successors, (56), 6 states have internal predecessors, (56), 3 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (24), 4 states have call predecessors, (24), 3 states have call successors, (24) [2025-02-08 01:28:23,967 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2025-02-08 01:28:28,362 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.39s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2025-02-08 01:28:32,758 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.39s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2025-02-08 01:28:33,836 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 01:28:33,837 INFO L93 Difference]: Finished difference Result 293 states and 382 transitions. [2025-02-08 01:28:33,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-02-08 01:28:33,837 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.0) internal successors, (56), 6 states have internal predecessors, (56), 3 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (24), 4 states have call predecessors, (24), 3 states have call successors, (24) Word has length 203 [2025-02-08 01:28:33,838 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 01:28:33,840 INFO L225 Difference]: With dead ends: 293 [2025-02-08 01:28:33,841 INFO L226 Difference]: Without dead ends: 190 [2025-02-08 01:28:33,841 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2025-02-08 01:28:33,843 INFO L435 NwaCegarLoop]: 215 mSDtfsCounter, 6 mSDsluCounter, 1070 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 3 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 1285 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.8s IncrementalHoareTripleChecker+Time [2025-02-08 01:28:33,843 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 1285 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 31 Invalid, 3 Unknown, 0 Unchecked, 13.8s Time] [2025-02-08 01:28:33,844 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 190 states. [2025-02-08 01:28:33,864 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 190 to 186. [2025-02-08 01:28:33,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 186 states, 109 states have (on average 1.146788990825688) internal successors, (125), 110 states have internal predecessors, (125), 59 states have call successors, (59), 17 states have call predecessors, (59), 17 states have return successors, (58), 58 states have call predecessors, (58), 57 states have call successors, (58) [2025-02-08 01:28:33,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 186 states to 186 states and 242 transitions. [2025-02-08 01:28:33,873 INFO L78 Accepts]: Start accepts. Automaton has 186 states and 242 transitions. Word has length 203 [2025-02-08 01:28:33,873 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 01:28:33,873 INFO L471 AbstractCegarLoop]: Abstraction has 186 states and 242 transitions. [2025-02-08 01:28:33,873 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.0) internal successors, (56), 6 states have internal predecessors, (56), 3 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (24), 4 states have call predecessors, (24), 3 states have call successors, (24) [2025-02-08 01:28:33,874 INFO L276 IsEmpty]: Start isEmpty. Operand 186 states and 242 transitions. [2025-02-08 01:28:33,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2025-02-08 01:28:33,875 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 01:28:33,875 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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] [2025-02-08 01:28:33,875 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-02-08 01:28:33,875 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-08 01:28:33,875 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 01:28:33,879 INFO L85 PathProgramCache]: Analyzing trace with hash 1262163522, now seen corresponding path program 1 times [2025-02-08 01:28:33,879 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 01:28:33,879 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [993270674] [2025-02-08 01:28:33,879 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 01:28:33,880 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 01:28:37,483 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 203 statements into 1 equivalence classes. [2025-02-08 01:28:37,558 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 203 of 203 statements. [2025-02-08 01:28:37,559 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 01:28:37,559 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 01:28:39,785 INFO L134 CoverageAnalysis]: Checked inductivity of 363 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 363 trivial. 0 not checked. [2025-02-08 01:28:39,785 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 01:28:39,787 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [993270674] [2025-02-08 01:28:39,787 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [993270674] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 01:28:39,787 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 01:28:39,788 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2025-02-08 01:28:39,788 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1829741243] [2025-02-08 01:28:39,788 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 01:28:39,788 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-02-08 01:28:39,788 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 01:28:39,788 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-02-08 01:28:39,788 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2025-02-08 01:28:39,789 INFO L87 Difference]: Start difference. First operand 186 states and 242 transitions. Second operand has 8 states, 8 states have (on average 7.0) internal successors, (56), 7 states have internal predecessors, (56), 4 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (24), 5 states have call predecessors, (24), 4 states have call successors, (24) [2025-02-08 01:28:43,846 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2025-02-08 01:28:48,218 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.37s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2025-02-08 01:28:49,614 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 01:28:49,614 INFO L93 Difference]: Finished difference Result 306 states and 402 transitions. [2025-02-08 01:28:49,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-02-08 01:28:49,616 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.0) internal successors, (56), 7 states have internal predecessors, (56), 4 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (24), 5 states have call predecessors, (24), 4 states have call successors, (24) Word has length 203 [2025-02-08 01:28:49,616 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 01:28:49,618 INFO L225 Difference]: With dead ends: 306 [2025-02-08 01:28:49,618 INFO L226 Difference]: Without dead ends: 209 [2025-02-08 01:28:49,619 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2025-02-08 01:28:49,620 INFO L435 NwaCegarLoop]: 219 mSDtfsCounter, 13 mSDsluCounter, 1300 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 3 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 1519 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.6s IncrementalHoareTripleChecker+Time [2025-02-08 01:28:49,621 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 1519 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 49 Invalid, 2 Unknown, 0 Unchecked, 9.6s Time] [2025-02-08 01:28:49,621 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 209 states. [2025-02-08 01:28:49,630 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 209 to 192. [2025-02-08 01:28:49,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 192 states, 112 states have (on average 1.1428571428571428) internal successors, (128), 113 states have internal predecessors, (128), 62 states have call successors, (62), 17 states have call predecessors, (62), 17 states have return successors, (61), 61 states have call predecessors, (61), 60 states have call successors, (61) [2025-02-08 01:28:49,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 192 states to 192 states and 251 transitions. [2025-02-08 01:28:49,632 INFO L78 Accepts]: Start accepts. Automaton has 192 states and 251 transitions. Word has length 203 [2025-02-08 01:28:49,632 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 01:28:49,632 INFO L471 AbstractCegarLoop]: Abstraction has 192 states and 251 transitions. [2025-02-08 01:28:49,632 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.0) internal successors, (56), 7 states have internal predecessors, (56), 4 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (24), 5 states have call predecessors, (24), 4 states have call successors, (24) [2025-02-08 01:28:49,632 INFO L276 IsEmpty]: Start isEmpty. Operand 192 states and 251 transitions. [2025-02-08 01:28:49,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2025-02-08 01:28:49,633 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 01:28:49,634 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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] [2025-02-08 01:28:49,634 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-02-08 01:28:49,634 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-08 01:28:49,634 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 01:28:49,634 INFO L85 PathProgramCache]: Analyzing trace with hash -912516575, now seen corresponding path program 1 times [2025-02-08 01:28:49,634 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 01:28:49,634 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [319074120] [2025-02-08 01:28:49,634 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 01:28:49,635 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 01:28:53,301 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 203 statements into 1 equivalence classes. [2025-02-08 01:28:54,371 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 203 of 203 statements. [2025-02-08 01:28:54,372 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 01:28:54,372 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 01:28:56,138 INFO L134 CoverageAnalysis]: Checked inductivity of 363 backedges. 15 proven. 12 refuted. 0 times theorem prover too weak. 336 trivial. 0 not checked. [2025-02-08 01:28:56,139 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 01:28:56,139 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [319074120] [2025-02-08 01:28:56,139 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [319074120] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 01:28:56,139 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1978847179] [2025-02-08 01:28:56,139 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 01:28:56,139 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 01:28:56,139 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 01:28:56,163 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) [2025-02-08 01:28:56,165 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