./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/aws-c-common/aws_array_list_capacity_harness_negated.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_capacity_harness_negated.i -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 782de24019eece20387c3cd6e967e9eaef1d40fd6eb1a7b72eb8f6c4f97205cc --- Real Ultimate output --- This is Ultimate 0.3.0-?-48c9605-m [2025-02-08 01:25:40,596 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-08 01:25:40,678 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2025-02-08 01:25:40,688 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-08 01:25:40,688 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-08 01:25:40,721 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-08 01:25:40,722 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-08 01:25:40,722 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-08 01:25:40,723 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-08 01:25:40,723 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-08 01:25:40,724 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-08 01:25:40,724 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-08 01:25:40,724 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-08 01:25:40,725 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-08 01:25:40,725 INFO L153 SettingsManager]: * Use SBE=true [2025-02-08 01:25:40,725 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-08 01:25:40,725 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-08 01:25:40,725 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-08 01:25:40,725 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-08 01:25:40,725 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-08 01:25:40,725 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-08 01:25:40,725 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-08 01:25:40,725 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-08 01:25:40,725 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-08 01:25:40,725 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-08 01:25:40,726 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-08 01:25:40,726 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-08 01:25:40,726 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-08 01:25:40,727 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-08 01:25:40,727 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 01:25:40,727 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-08 01:25:40,727 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-08 01:25:40,728 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-02-08 01:25:40,728 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-02-08 01:25:40,728 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-08 01:25:40,728 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-08 01:25:40,728 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-08 01:25:40,728 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-08 01:25:40,728 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-08 01:25:40,728 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-08 01:25:40,728 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 -> 782de24019eece20387c3cd6e967e9eaef1d40fd6eb1a7b72eb8f6c4f97205cc [2025-02-08 01:25:41,033 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-08 01:25:41,041 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-08 01:25:41,043 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-08 01:25:41,044 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-08 01:25:41,044 INFO L274 PluginConnector]: CDTParser initialized [2025-02-08 01:25:41,046 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_array_list_capacity_harness_negated.i [2025-02-08 01:25:42,418 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/0d23a87c1/6fc39f069c66444792a1bbfe81061387/FLAGb550af1bb [2025-02-08 01:25:43,048 INFO L384 CDTParser]: Found 1 translation units. [2025-02-08 01:25:43,048 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_array_list_capacity_harness_negated.i [2025-02-08 01:25:43,083 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/0d23a87c1/6fc39f069c66444792a1bbfe81061387/FLAGb550af1bb [2025-02-08 01:25:43,098 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/0d23a87c1/6fc39f069c66444792a1bbfe81061387 [2025-02-08 01:25:43,100 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-08 01:25:43,102 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-08 01:25:43,103 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-08 01:25:43,103 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-08 01:25:43,106 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-08 01:25:43,106 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 01:25:43" (1/1) ... [2025-02-08 01:25:43,107 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@8306525 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:25:43, skipping insertion in model container [2025-02-08 01:25:43,107 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 01:25:43" (1/1) ... [2025-02-08 01:25:43,201 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-08 01:25:43,399 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_capacity_harness_negated.i[4497,4510] [2025-02-08 01:25:43,408 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_capacity_harness_negated.i[4557,4570] [2025-02-08 01:25:43,995 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:25:43,996 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:25:43,996 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:25:43,997 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:25:43,997 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:25:44,008 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:25:44,009 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:25:44,010 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:25:44,011 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:25:44,012 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:25:44,012 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:25:44,013 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:25:44,013 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:25:44,389 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:25:44,401 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:25:44,478 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 01:25:44,511 INFO L200 MainTranslator]: Completed pre-run [2025-02-08 01:25:44,527 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_capacity_harness_negated.i[4497,4510] [2025-02-08 01:25:44,528 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_capacity_harness_negated.i[4557,4570] [2025-02-08 01:25:44,614 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:25:44,614 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:25:44,615 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:25:44,615 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:25:44,615 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:25:44,627 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:25:44,627 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:25:44,628 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:25:44,629 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:25:44,629 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:25:44,632 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:25:44,633 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:25:44,633 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:25:44,706 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:25:44,718 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:25:44,725 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [7715-7726] [2025-02-08 01:25:44,749 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 01:25:44,932 INFO L204 MainTranslator]: Completed translation [2025-02-08 01:25:44,932 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:25:44 WrapperNode [2025-02-08 01:25:44,933 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-08 01:25:44,934 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-08 01:25:44,934 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-08 01:25:44,934 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-08 01:25:44,938 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:25:44" (1/1) ... [2025-02-08 01:25:44,994 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:25:44" (1/1) ... [2025-02-08 01:25:45,082 INFO L138 Inliner]: procedures = 679, calls = 1682, calls flagged for inlining = 53, calls inlined = 9, statements flattened = 617 [2025-02-08 01:25:45,086 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-08 01:25:45,089 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-08 01:25:45,090 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-08 01:25:45,090 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-08 01:25:45,100 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:25:44" (1/1) ... [2025-02-08 01:25:45,101 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:25:44" (1/1) ... [2025-02-08 01:25:45,110 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:25:44" (1/1) ... [2025-02-08 01:25:45,179 INFO L175 MemorySlicer]: Split 306 memory accesses to 6 slices as follows [2, 238, 50, 6, 7, 3]. 78 percent of accesses are in the largest equivalence class. The 24 initializations are split as follows [2, 6, 10, 0, 5, 1]. The 238 writes are split as follows [0, 232, 3, 2, 0, 1]. [2025-02-08 01:25:45,180 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:25:44" (1/1) ... [2025-02-08 01:25:45,180 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:25:44" (1/1) ... [2025-02-08 01:25:45,212 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:25:44" (1/1) ... [2025-02-08 01:25:45,215 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:25:44" (1/1) ... [2025-02-08 01:25:45,228 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:25:44" (1/1) ... [2025-02-08 01:25:45,232 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:25:44" (1/1) ... [2025-02-08 01:25:45,242 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-08 01:25:45,246 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-08 01:25:45,246 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-08 01:25:45,246 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-08 01:25:45,247 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:25:44" (1/1) ... [2025-02-08 01:25:45,253 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 01:25:45,268 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 01:25:45,286 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 01:25:45,292 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 01:25:45,315 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-02-08 01:25:45,315 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_bounded [2025-02-08 01:25:45,315 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_bounded [2025-02-08 01:25:45,315 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_valid [2025-02-08 01:25:45,316 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_valid [2025-02-08 01:25:45,316 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2025-02-08 01:25:45,316 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2025-02-08 01:25:45,316 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2025-02-08 01:25:45,317 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2025-02-08 01:25:45,317 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2025-02-08 01:25:45,317 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2025-02-08 01:25:45,317 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2025-02-08 01:25:45,317 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2025-02-08 01:25:45,318 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-02-08 01:25:45,318 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-02-08 01:25:45,318 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2025-02-08 01:25:45,318 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2025-02-08 01:25:45,318 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2025-02-08 01:25:45,319 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2025-02-08 01:25:45,319 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2025-02-08 01:25:45,319 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2025-02-08 01:25:45,319 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2025-02-08 01:25:45,319 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2025-02-08 01:25:45,319 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-02-08 01:25:45,319 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-08 01:25:45,319 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2025-02-08 01:25:45,319 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2025-02-08 01:25:45,319 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2025-02-08 01:25:45,319 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2025-02-08 01:25:45,319 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2025-02-08 01:25:45,319 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2025-02-08 01:25:45,320 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-08 01:25:45,320 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-08 01:25:45,321 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2025-02-08 01:25:45,321 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2025-02-08 01:25:45,321 INFO L130 BoogieDeclarations]: Found specification of procedure assert_byte_from_buffer_matches [2025-02-08 01:25:45,321 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_byte_from_buffer_matches [2025-02-08 01:25:45,321 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2025-02-08 01:25:45,321 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2025-02-08 01:25:45,321 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2025-02-08 01:25:45,321 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2025-02-08 01:25:45,321 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2025-02-08 01:25:45,321 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2025-02-08 01:25:45,321 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2025-02-08 01:25:45,321 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2025-02-08 01:25:45,321 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2025-02-08 01:25:45,321 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2025-02-08 01:25:45,321 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-02-08 01:25:45,321 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2025-02-08 01:25:45,321 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2025-02-08 01:25:45,321 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2025-02-08 01:25:45,322 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2025-02-08 01:25:45,322 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2025-02-08 01:25:45,322 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2025-02-08 01:25:45,322 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2025-02-08 01:25:45,322 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2025-02-08 01:25:45,322 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2025-02-08 01:25:45,322 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2025-02-08 01:25:45,322 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2025-02-08 01:25:45,322 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2025-02-08 01:25:45,322 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2025-02-08 01:25:45,322 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2025-02-08 01:25:45,322 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2025-02-08 01:25:45,322 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2025-02-08 01:25:45,322 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-02-08 01:25:45,322 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-02-08 01:25:45,322 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2025-02-08 01:25:45,322 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2025-02-08 01:25:45,322 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2025-02-08 01:25:45,322 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2025-02-08 01:25:45,322 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_array_list_has_allocated_data_member [2025-02-08 01:25:45,322 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_array_list_has_allocated_data_member [2025-02-08 01:25:45,322 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-02-08 01:25:45,322 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-02-08 01:25:45,322 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-02-08 01:25:45,322 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2025-02-08 01:25:45,322 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2025-02-08 01:25:45,322 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2025-02-08 01:25:45,651 INFO L257 CfgBuilder]: Building ICFG [2025-02-08 01:25:45,653 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-08 01:25:45,725 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L2782: havoc #t~malloc77.base, #t~malloc77.offset; [2025-02-08 01:25:45,793 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L2588: havoc #t~ret57#1; [2025-02-08 01:25:45,923 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 01:25:45,927 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L261: havoc #t~nondet4; [2025-02-08 01:25:51,387 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L263: havoc nondet_size_t_#t~nondet6#1;save_byte_from_array_#t~ret628#1 := nondet_size_t_#res#1;havoc nondet_size_t_#t~nondet6#1;assume { :end_inline_nondet_size_t } true;call write~int#3(save_byte_from_array_#t~ret628#1, save_byte_from_array_~storage#1.base, save_byte_from_array_~storage#1.offset, 8);havoc save_byte_from_array_#t~ret628#1;call save_byte_from_array_#t~mem629#1 := read~int#3(save_byte_from_array_~storage#1.base, save_byte_from_array_~storage#1.offset, 8); [2025-02-08 01:25:51,388 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L7173-1: SUMMARY for call assume_abort_if_not((if 0 == (if save_byte_from_array_#t~mem629#1 % 18446744073709551616 < save_byte_from_array_~size#1 % 18446744073709551616 then 1 else 0) then 0 else 1)); srcloc: null [2025-02-08 01:25:51,388 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L7173: havoc save_byte_from_array_#t~mem629#1;call save_byte_from_array_#t~mem630#1 := read~int#3(save_byte_from_array_~storage#1.base, save_byte_from_array_~storage#1.offset, 8);call save_byte_from_array_#t~mem631#1 := read~int#4(save_byte_from_array_~array#1.base, save_byte_from_array_~array#1.offset + (if save_byte_from_array_#t~mem630#1 % 18446744073709551616 % 18446744073709551616 <= 9223372036854775807 then save_byte_from_array_#t~mem630#1 % 18446744073709551616 % 18446744073709551616 else save_byte_from_array_#t~mem630#1 % 18446744073709551616 % 18446744073709551616 - 18446744073709551616), 1);call write~int#3(save_byte_from_array_#t~mem631#1, save_byte_from_array_~storage#1.base, 8 + save_byte_from_array_~storage#1.offset, 1);havoc save_byte_from_array_#t~mem630#1;havoc save_byte_from_array_#t~mem631#1; [2025-02-08 01:25:51,442 INFO L? ?]: Removed 101 outVars from TransFormulas that were not future-live. [2025-02-08 01:25:51,443 INFO L308 CfgBuilder]: Performing block encoding [2025-02-08 01:25:51,454 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-08 01:25:51,454 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-08 01:25:51,455 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 01:25:51 BoogieIcfgContainer [2025-02-08 01:25:51,455 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-08 01:25:51,457 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-08 01:25:51,457 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-08 01:25:51,462 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-08 01:25:51,462 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.02 01:25:43" (1/3) ... [2025-02-08 01:25:51,463 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@610a4325 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.02 01:25:51, skipping insertion in model container [2025-02-08 01:25:51,463 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:25:44" (2/3) ... [2025-02-08 01:25:51,463 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@610a4325 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.02 01:25:51, skipping insertion in model container [2025-02-08 01:25:51,463 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 01:25:51" (3/3) ... [2025-02-08 01:25:51,464 INFO L128 eAbstractionObserver]: Analyzing ICFG aws_array_list_capacity_harness_negated.i [2025-02-08 01:25:51,480 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-08 01:25:51,482 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG aws_array_list_capacity_harness_negated.i that has 13 procedures, 116 locations, 1 initial locations, 0 loop locations, and 1 error locations. [2025-02-08 01:25:51,541 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-08 01:25:51,553 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;@9ecbe5a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-08 01:25:51,554 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-02-08 01:25:51,558 INFO L276 IsEmpty]: Start isEmpty. Operand has 116 states, 69 states have (on average 1.2173913043478262) internal successors, (84), 73 states have internal predecessors, (84), 30 states have call successors, (30), 12 states have call predecessors, (30), 12 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) [2025-02-08 01:25:51,565 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2025-02-08 01:25:51,565 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 01:25:51,566 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 01:25:51,566 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-08 01:25:51,570 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 01:25:51,571 INFO L85 PathProgramCache]: Analyzing trace with hash 1833263381, now seen corresponding path program 1 times [2025-02-08 01:25:51,578 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 01:25:51,578 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1638030577] [2025-02-08 01:25:51,578 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 01:25:51,580 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 01:25:56,851 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 73 statements into 1 equivalence classes. [2025-02-08 01:25:57,252 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 73 of 73 statements. [2025-02-08 01:25:57,253 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 01:25:57,253 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 01:25:57,886 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 62 trivial. 0 not checked. [2025-02-08 01:25:57,887 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 01:25:57,887 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1638030577] [2025-02-08 01:25:57,888 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1638030577] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 01:25:57,888 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1081179188] [2025-02-08 01:25:57,888 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 01:25:57,888 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 01:25:57,889 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 01:25:57,893 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 01:25:57,895 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 01:26:02,743 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 73 statements into 1 equivalence classes. [2025-02-08 01:26:03,374 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 73 of 73 statements. [2025-02-08 01:26:03,375 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 01:26:03,375 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 01:26:03,407 INFO L256 TraceCheckSpWp]: Trace formula consists of 4068 conjuncts, 1 conjuncts are in the unsatisfiable core [2025-02-08 01:26:03,422 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 01:26:03,441 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 62 trivial. 0 not checked. [2025-02-08 01:26:03,441 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-08 01:26:03,441 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1081179188] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 01:26:03,441 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-08 01:26:03,442 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2025-02-08 01:26:03,444 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1759398702] [2025-02-08 01:26:03,444 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 01:26:03,448 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-02-08 01:26:03,448 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 01:26:03,467 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-02-08 01:26:03,468 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-02-08 01:26:03,470 INFO L87 Difference]: Start difference. First operand has 116 states, 69 states have (on average 1.2173913043478262) internal successors, (84), 73 states have internal predecessors, (84), 30 states have call successors, (30), 12 states have call predecessors, (30), 12 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) Second operand has 2 states, 2 states have (on average 14.5) internal successors, (29), 2 states have internal predecessors, (29), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2025-02-08 01:26:03,507 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 01:26:03,508 INFO L93 Difference]: Finished difference Result 226 states and 300 transitions. [2025-02-08 01:26:03,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-02-08 01:26:03,510 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 14.5) internal successors, (29), 2 states have internal predecessors, (29), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 73 [2025-02-08 01:26:03,510 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 01:26:03,519 INFO L225 Difference]: With dead ends: 226 [2025-02-08 01:26:03,519 INFO L226 Difference]: Without dead ends: 105 [2025-02-08 01:26:03,523 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 74 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 01:26:03,529 INFO L435 NwaCegarLoop]: 142 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, 142 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 01:26:03,530 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 142 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-08 01:26:03,541 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105 states. [2025-02-08 01:26:03,564 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105 to 105. [2025-02-08 01:26:03,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 105 states, 64 states have (on average 1.15625) internal successors, (74), 65 states have internal predecessors, (74), 29 states have call successors, (29), 11 states have call predecessors, (29), 11 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) [2025-02-08 01:26:03,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 131 transitions. [2025-02-08 01:26:03,580 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 131 transitions. Word has length 73 [2025-02-08 01:26:03,580 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 01:26:03,580 INFO L471 AbstractCegarLoop]: Abstraction has 105 states and 131 transitions. [2025-02-08 01:26:03,581 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 14.5) internal successors, (29), 2 states have internal predecessors, (29), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2025-02-08 01:26:03,581 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 131 transitions. [2025-02-08 01:26:03,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2025-02-08 01:26:03,586 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 01:26:03,587 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 01:26:03,602 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 01:26:03,791 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 01:26:03,791 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-08 01:26:03,792 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 01:26:03,792 INFO L85 PathProgramCache]: Analyzing trace with hash -1397576207, now seen corresponding path program 1 times [2025-02-08 01:26:03,792 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 01:26:03,792 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [171876640] [2025-02-08 01:26:03,792 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 01:26:03,792 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 01:26:08,299 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 73 statements into 1 equivalence classes. [2025-02-08 01:26:08,445 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 73 of 73 statements. [2025-02-08 01:26:08,446 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 01:26:08,446 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 01:26:09,807 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2025-02-08 01:26:09,808 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 01:26:09,808 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [171876640] [2025-02-08 01:26:09,808 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [171876640] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 01:26:09,808 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1733970195] [2025-02-08 01:26:09,808 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 01:26:09,809 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 01:26:09,809 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 01:26:09,811 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 01:26:09,812 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 01:26:14,248 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 73 statements into 1 equivalence classes. [2025-02-08 01:26:14,791 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 73 of 73 statements. [2025-02-08 01:26:14,791 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 01:26:14,792 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 01:26:14,811 INFO L256 TraceCheckSpWp]: Trace formula consists of 4068 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-02-08 01:26:14,822 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 01:26:15,280 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 40 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2025-02-08 01:26:15,280 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-08 01:26:15,280 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1733970195] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 01:26:15,280 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-08 01:26:15,280 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 8 [2025-02-08 01:26:15,280 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1595108768] [2025-02-08 01:26:15,281 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 01:26:15,281 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-08 01:26:15,281 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 01:26:15,282 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-08 01:26:15,282 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2025-02-08 01:26:15,283 INFO L87 Difference]: Start difference. First operand 105 states and 131 transitions. Second operand has 5 states, 5 states have (on average 6.6) internal successors, (33), 5 states have internal predecessors, (33), 3 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2025-02-08 01:26:15,842 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 01:26:15,842 INFO L93 Difference]: Finished difference Result 176 states and 223 transitions. [2025-02-08 01:26:15,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-08 01:26:15,843 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.6) internal successors, (33), 5 states have internal predecessors, (33), 3 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 73 [2025-02-08 01:26:15,844 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 01:26:15,848 INFO L225 Difference]: With dead ends: 176 [2025-02-08 01:26:15,850 INFO L226 Difference]: Without dead ends: 107 [2025-02-08 01:26:15,851 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 71 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 01:26:15,851 INFO L435 NwaCegarLoop]: 117 mSDtfsCounter, 28 mSDsluCounter, 302 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 419 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2025-02-08 01:26:15,852 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 419 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2025-02-08 01:26:15,853 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2025-02-08 01:26:15,869 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 107. [2025-02-08 01:26:15,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 107 states, 65 states have (on average 1.1538461538461537) internal successors, (75), 67 states have internal predecessors, (75), 29 states have call successors, (29), 11 states have call predecessors, (29), 12 states have return successors, (30), 28 states have call predecessors, (30), 28 states have call successors, (30) [2025-02-08 01:26:15,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 134 transitions. [2025-02-08 01:26:15,875 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 134 transitions. Word has length 73 [2025-02-08 01:26:15,875 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 01:26:15,875 INFO L471 AbstractCegarLoop]: Abstraction has 107 states and 134 transitions. [2025-02-08 01:26:15,875 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.6) internal successors, (33), 5 states have internal predecessors, (33), 3 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2025-02-08 01:26:15,875 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 134 transitions. [2025-02-08 01:26:15,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2025-02-08 01:26:15,880 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 01:26:15,880 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 01:26:15,900 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2025-02-08 01:26:16,080 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 01:26:16,081 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-08 01:26:16,081 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 01:26:16,081 INFO L85 PathProgramCache]: Analyzing trace with hash 349476795, now seen corresponding path program 1 times [2025-02-08 01:26:16,081 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 01:26:16,082 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [731891177] [2025-02-08 01:26:16,082 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 01:26:16,082 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 01:26:19,961 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 87 statements into 1 equivalence classes. [2025-02-08 01:26:20,126 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 87 of 87 statements. [2025-02-08 01:26:20,126 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 01:26:20,126 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 01:26:21,744 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2025-02-08 01:26:21,744 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 01:26:21,744 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [731891177] [2025-02-08 01:26:21,744 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [731891177] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 01:26:21,745 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [457446587] [2025-02-08 01:26:21,745 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 01:26:21,745 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 01:26:21,745 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 01:26:21,750 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 01:26:21,753 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 01:26:25,942 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 87 statements into 1 equivalence classes. [2025-02-08 01:26:26,403 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 87 of 87 statements. [2025-02-08 01:26:26,403 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 01:26:26,403 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 01:26:26,421 INFO L256 TraceCheckSpWp]: Trace formula consists of 4195 conjuncts, 7 conjuncts are in the unsatisfiable core [2025-02-08 01:26:26,426 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 01:26:27,287 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 31 proven. 0 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2025-02-08 01:26:27,287 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-08 01:26:27,287 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [457446587] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 01:26:27,287 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-08 01:26:27,287 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 10 [2025-02-08 01:26:27,288 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [543565230] [2025-02-08 01:26:27,288 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 01:26:27,288 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-08 01:26:27,288 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 01:26:27,289 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-08 01:26:27,289 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2025-02-08 01:26:27,289 INFO L87 Difference]: Start difference. First operand 107 states and 134 transitions. Second operand has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 6 states have internal predecessors, (46), 4 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (14), 4 states have call predecessors, (14), 4 states have call successors, (14) [2025-02-08 01:26:28,141 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 01:26:28,141 INFO L93 Difference]: Finished difference Result 169 states and 210 transitions. [2025-02-08 01:26:28,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-08 01:26:28,141 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 6 states have internal predecessors, (46), 4 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (14), 4 states have call predecessors, (14), 4 states have call successors, (14) Word has length 87 [2025-02-08 01:26:28,142 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 01:26:28,143 INFO L225 Difference]: With dead ends: 169 [2025-02-08 01:26:28,143 INFO L226 Difference]: Without dead ends: 105 [2025-02-08 01:26:28,144 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 84 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2025-02-08 01:26:28,145 INFO L435 NwaCegarLoop]: 118 mSDtfsCounter, 26 mSDsluCounter, 415 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 533 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2025-02-08 01:26:28,145 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 533 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2025-02-08 01:26:28,146 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105 states. [2025-02-08 01:26:28,153 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105 to 105. [2025-02-08 01:26:28,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 105 states, 64 states have (on average 1.140625) internal successors, (73), 65 states have internal predecessors, (73), 29 states have call successors, (29), 11 states have call predecessors, (29), 11 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) [2025-02-08 01:26:28,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 130 transitions. [2025-02-08 01:26:28,155 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 130 transitions. Word has length 87 [2025-02-08 01:26:28,155 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 01:26:28,156 INFO L471 AbstractCegarLoop]: Abstraction has 105 states and 130 transitions. [2025-02-08 01:26:28,156 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 6 states have internal predecessors, (46), 4 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (14), 4 states have call predecessors, (14), 4 states have call successors, (14) [2025-02-08 01:26:28,156 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 130 transitions. [2025-02-08 01:26:28,157 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2025-02-08 01:26:28,157 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 01:26:28,158 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 01:26:28,173 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 01:26:28,358 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 01:26:28,358 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-08 01:26:28,359 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 01:26:28,359 INFO L85 PathProgramCache]: Analyzing trace with hash -2078175237, now seen corresponding path program 1 times [2025-02-08 01:26:28,359 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 01:26:28,359 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1097867275] [2025-02-08 01:26:28,359 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 01:26:28,359 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 01:26:32,103 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 115 statements into 1 equivalence classes. [2025-02-08 01:26:38,826 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 115 of 115 statements. [2025-02-08 01:26:38,827 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 01:26:38,827 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-02-08 01:26:38,859 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [21889393] [2025-02-08 01:26:38,860 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 01:26:38,860 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 01:26:38,860 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 01:26:38,862 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 01:26:38,864 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2025-02-08 01:26:43,283 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 115 statements into 1 equivalence classes.