./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/aws-c-common/aws_array_list_length_harness_negated.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version c00e63dc Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/aws-c-common/aws_array_list_length_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 c30c0965987318f01d5184a150d60c3184a0b961eb98f92329641a56cc773300 --- Real Ultimate output --- This is Ultimate 0.3.0-?-c00e63d-m [2025-02-06 04:51:27,505 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-06 04:51:27,582 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2025-02-06 04:51:27,588 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-06 04:51:27,589 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-06 04:51:27,612 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-06 04:51:27,613 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-06 04:51:27,614 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-06 04:51:27,614 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-06 04:51:27,614 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-06 04:51:27,615 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-06 04:51:27,615 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-06 04:51:27,615 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-06 04:51:27,615 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-06 04:51:27,616 INFO L153 SettingsManager]: * Use SBE=true [2025-02-06 04:51:27,617 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-06 04:51:27,617 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-06 04:51:27,617 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-06 04:51:27,617 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-06 04:51:27,617 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-06 04:51:27,617 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-06 04:51:27,617 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-06 04:51:27,617 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-06 04:51:27,617 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-06 04:51:27,618 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-06 04:51:27,618 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-06 04:51:27,618 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-06 04:51:27,618 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-06 04:51:27,618 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-06 04:51:27,618 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 04:51:27,618 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-06 04:51:27,618 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-06 04:51:27,618 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-02-06 04:51:27,618 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-02-06 04:51:27,618 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-06 04:51:27,618 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-06 04:51:27,618 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-06 04:51:27,619 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-06 04:51:27,619 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-06 04:51:27,619 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-06 04:51:27,619 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 -> c30c0965987318f01d5184a150d60c3184a0b961eb98f92329641a56cc773300 [2025-02-06 04:51:27,909 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-06 04:51:27,918 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-06 04:51:27,922 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-06 04:51:27,924 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-06 04:51:27,924 INFO L274 PluginConnector]: CDTParser initialized [2025-02-06 04:51:27,925 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_array_list_length_harness_negated.i [2025-02-06 04:51:29,278 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/981645dee/41fb28b166724c699be8cd78d42a8b63/FLAGa71ee51c8 [2025-02-06 04:51:29,863 INFO L384 CDTParser]: Found 1 translation units. [2025-02-06 04:51:29,864 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_array_list_length_harness_negated.i [2025-02-06 04:51:29,897 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/981645dee/41fb28b166724c699be8cd78d42a8b63/FLAGa71ee51c8 [2025-02-06 04:51:29,916 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/981645dee/41fb28b166724c699be8cd78d42a8b63 [2025-02-06 04:51:29,918 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-06 04:51:29,920 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-06 04:51:29,921 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-06 04:51:29,921 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-06 04:51:29,925 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-06 04:51:29,926 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 04:51:29" (1/1) ... [2025-02-06 04:51:29,928 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6ec0188c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 04:51:29, skipping insertion in model container [2025-02-06 04:51:29,928 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 04:51:29" (1/1) ... [2025-02-06 04:51:30,022 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-06 04:51:30,323 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_length_harness_negated.i[4495,4508] [2025-02-06 04:51:30,331 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_length_harness_negated.i[4555,4568] [2025-02-06 04:51:31,202 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 04:51:31,203 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 04:51:31,204 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 04:51:31,204 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 04:51:31,205 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 04:51:31,219 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 04:51:31,220 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 04:51:31,222 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 04:51:31,224 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 04:51:31,225 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 04:51:31,227 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 04:51:31,227 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 04:51:31,228 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 04:51:32,103 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 04:51:32,110 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 04:51:32,189 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 04:51:32,238 INFO L200 MainTranslator]: Completed pre-run [2025-02-06 04:51:32,251 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_length_harness_negated.i[4495,4508] [2025-02-06 04:51:32,252 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_length_harness_negated.i[4555,4568] [2025-02-06 04:51:32,312 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 04:51:32,312 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 04:51:32,313 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 04:51:32,313 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 04:51:32,316 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 04:51:32,327 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 04:51:32,327 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 04:51:32,328 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 04:51:32,330 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 04:51:32,333 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 04:51:32,335 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 04:51:32,335 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 04:51:32,336 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 04:51:32,483 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 04:51:32,493 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 04:51:32,500 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [7715-7726] [2025-02-06 04:51:32,515 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 04:51:32,705 INFO L204 MainTranslator]: Completed translation [2025-02-06 04:51:32,706 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 04:51:32 WrapperNode [2025-02-06 04:51:32,707 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-06 04:51:32,709 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-06 04:51:32,709 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-06 04:51:32,709 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-06 04:51:32,719 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 04:51:32" (1/1) ... [2025-02-06 04:51:32,789 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 04:51:32" (1/1) ... [2025-02-06 04:51:32,861 INFO L138 Inliner]: procedures = 679, calls = 1677, calls flagged for inlining = 52, calls inlined = 8, statements flattened = 592 [2025-02-06 04:51:32,862 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-06 04:51:32,862 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-06 04:51:32,863 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-06 04:51:32,863 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-06 04:51:32,872 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 04:51:32" (1/1) ... [2025-02-06 04:51:32,873 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 04:51:32" (1/1) ... [2025-02-06 04:51:32,880 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 04:51:32" (1/1) ... [2025-02-06 04:51:32,943 INFO L175 MemorySlicer]: Split 303 memory accesses to 6 slices as follows [2, 238, 7, 47, 3, 6]. 79 percent of accesses are in the largest equivalence class. The 24 initializations are split as follows [2, 6, 5, 10, 1, 0]. The 238 writes are split as follows [0, 232, 0, 3, 1, 2]. [2025-02-06 04:51:32,943 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 04:51:32" (1/1) ... [2025-02-06 04:51:32,944 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 04:51:32" (1/1) ... [2025-02-06 04:51:32,983 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 04:51:32" (1/1) ... [2025-02-06 04:51:32,988 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 04:51:32" (1/1) ... [2025-02-06 04:51:33,003 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 04:51:32" (1/1) ... [2025-02-06 04:51:33,010 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 04:51:32" (1/1) ... [2025-02-06 04:51:33,022 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-06 04:51:33,023 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-06 04:51:33,023 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-06 04:51:33,023 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-06 04:51:33,024 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 04:51:32" (1/1) ... [2025-02-06 04:51:33,033 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 04:51:33,049 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 04:51:33,071 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-02-06 04:51:33,076 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-02-06 04:51:33,108 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-02-06 04:51:33,108 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_bounded [2025-02-06 04:51:33,109 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_bounded [2025-02-06 04:51:33,109 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_valid [2025-02-06 04:51:33,109 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_valid [2025-02-06 04:51:33,109 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2025-02-06 04:51:33,109 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2025-02-06 04:51:33,109 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2025-02-06 04:51:33,109 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2025-02-06 04:51:33,110 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2025-02-06 04:51:33,110 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2025-02-06 04:51:33,110 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2025-02-06 04:51:33,110 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2025-02-06 04:51:33,111 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-02-06 04:51:33,111 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-02-06 04:51:33,111 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2025-02-06 04:51:33,111 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2025-02-06 04:51:33,111 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2025-02-06 04:51:33,111 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2025-02-06 04:51:33,111 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2025-02-06 04:51:33,111 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2025-02-06 04:51:33,111 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2025-02-06 04:51:33,111 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2025-02-06 04:51:33,111 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-02-06 04:51:33,111 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-06 04:51:33,111 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2025-02-06 04:51:33,111 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2025-02-06 04:51:33,111 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2025-02-06 04:51:33,111 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2025-02-06 04:51:33,111 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2025-02-06 04:51:33,111 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2025-02-06 04:51:33,111 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-06 04:51:33,111 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-06 04:51:33,111 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2025-02-06 04:51:33,111 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2025-02-06 04:51:33,111 INFO L130 BoogieDeclarations]: Found specification of procedure assert_byte_from_buffer_matches [2025-02-06 04:51:33,111 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_byte_from_buffer_matches [2025-02-06 04:51:33,111 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2025-02-06 04:51:33,111 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2025-02-06 04:51:33,111 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2025-02-06 04:51:33,111 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2025-02-06 04:51:33,111 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2025-02-06 04:51:33,111 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2025-02-06 04:51:33,112 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2025-02-06 04:51:33,112 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2025-02-06 04:51:33,112 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_length [2025-02-06 04:51:33,112 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_length [2025-02-06 04:51:33,112 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2025-02-06 04:51:33,112 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2025-02-06 04:51:33,112 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-02-06 04:51:33,112 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2025-02-06 04:51:33,112 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2025-02-06 04:51:33,112 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2025-02-06 04:51:33,112 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2025-02-06 04:51:33,112 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2025-02-06 04:51:33,112 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2025-02-06 04:51:33,112 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2025-02-06 04:51:33,112 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2025-02-06 04:51:33,112 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2025-02-06 04:51:33,112 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2025-02-06 04:51:33,112 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2025-02-06 04:51:33,112 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2025-02-06 04:51:33,112 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2025-02-06 04:51:33,112 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2025-02-06 04:51:33,112 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2025-02-06 04:51:33,112 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2025-02-06 04:51:33,112 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-02-06 04:51:33,112 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-02-06 04:51:33,112 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2025-02-06 04:51:33,115 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2025-02-06 04:51:33,115 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2025-02-06 04:51:33,116 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2025-02-06 04:51:33,116 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_array_list_has_allocated_data_member [2025-02-06 04:51:33,116 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_array_list_has_allocated_data_member [2025-02-06 04:51:33,116 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-02-06 04:51:33,116 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-02-06 04:51:33,116 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-02-06 04:51:33,116 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2025-02-06 04:51:33,116 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2025-02-06 04:51:33,116 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2025-02-06 04:51:33,469 INFO L257 CfgBuilder]: Building ICFG [2025-02-06 04:51:33,472 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-06 04:51:33,525 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L2782: havoc #t~malloc77.base, #t~malloc77.offset; [2025-02-06 04:51:33,582 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L2588: havoc #t~ret57#1; [2025-02-06 04:51:33,695 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L3268: call ULTIMATE.dealloc(~#required_size~0.base, ~#required_size~0.offset);havoc ~#required_size~0.base, ~#required_size~0.offset; [2025-02-06 04:51:33,698 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L261: havoc #t~nondet4; [2025-02-06 04:51:39,522 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L263: havoc nondet_size_t_#t~nondet6#1; [2025-02-06 04:51:39,575 INFO L? ?]: Removed 108 outVars from TransFormulas that were not future-live. [2025-02-06 04:51:39,575 INFO L308 CfgBuilder]: Performing block encoding [2025-02-06 04:51:39,597 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-06 04:51:39,597 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-06 04:51:39,600 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 04:51:39 BoogieIcfgContainer [2025-02-06 04:51:39,600 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-06 04:51:39,603 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-06 04:51:39,603 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-06 04:51:39,607 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-06 04:51:39,608 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.02 04:51:29" (1/3) ... [2025-02-06 04:51:39,608 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61dbb5a7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.02 04:51:39, skipping insertion in model container [2025-02-06 04:51:39,608 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 04:51:32" (2/3) ... [2025-02-06 04:51:39,608 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61dbb5a7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.02 04:51:39, skipping insertion in model container [2025-02-06 04:51:39,609 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 04:51:39" (3/3) ... [2025-02-06 04:51:39,610 INFO L128 eAbstractionObserver]: Analyzing ICFG aws_array_list_length_harness_negated.i [2025-02-06 04:51:39,624 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-06 04:51:39,628 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG aws_array_list_length_harness_negated.i that has 14 procedures, 123 locations, 1 initial locations, 0 loop locations, and 1 error locations. [2025-02-06 04:51:39,688 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-06 04:51:39,700 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;@2872e7d6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-06 04:51:39,700 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-02-06 04:51:39,705 INFO L276 IsEmpty]: Start isEmpty. Operand has 123 states, 78 states have (on average 1.205128205128205) internal successors, (94), 79 states have internal predecessors, (94), 30 states have call successors, (30), 13 states have call predecessors, (30), 13 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) [2025-02-06 04:51:39,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2025-02-06 04:51:39,716 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 04:51:39,717 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 04:51:39,718 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-06 04:51:39,723 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 04:51:39,724 INFO L85 PathProgramCache]: Analyzing trace with hash 1262517749, now seen corresponding path program 1 times [2025-02-06 04:51:39,732 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 04:51:39,733 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1697224636] [2025-02-06 04:51:39,733 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 04:51:39,735 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 04:51:44,489 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 71 statements into 1 equivalence classes. [2025-02-06 04:51:44,906 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 71 of 71 statements. [2025-02-06 04:51:44,907 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 04:51:44,907 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 04:51:45,419 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2025-02-06 04:51:45,420 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 04:51:45,421 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1697224636] [2025-02-06 04:51:45,422 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1697224636] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 04:51:45,422 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [213141568] [2025-02-06 04:51:45,425 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 04:51:45,425 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 04:51:45,425 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 04:51:45,429 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 04:51:45,432 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-02-06 04:51:50,186 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 71 statements into 1 equivalence classes. [2025-02-06 04:51:50,784 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 71 of 71 statements. [2025-02-06 04:51:50,784 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 04:51:50,784 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 04:51:50,802 INFO L256 TraceCheckSpWp]: Trace formula consists of 4078 conjuncts, 1 conjuncts are in the unsatisfiable core [2025-02-06 04:51:50,810 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 04:51:50,822 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2025-02-06 04:51:50,823 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 04:51:50,823 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [213141568] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 04:51:50,823 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-06 04:51:50,824 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2025-02-06 04:51:50,825 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1562231223] [2025-02-06 04:51:50,826 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 04:51:50,830 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-02-06 04:51:50,830 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 04:51:50,845 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-02-06 04:51:50,846 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-02-06 04:51:50,848 INFO L87 Difference]: Start difference. First operand has 123 states, 78 states have (on average 1.205128205128205) internal successors, (94), 79 states have internal predecessors, (94), 30 states have call successors, (30), 13 states have call predecessors, (30), 13 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 15.5) internal successors, (31), 2 states have internal predecessors, (31), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2025-02-06 04:51:50,875 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 04:51:50,876 INFO L93 Difference]: Finished difference Result 239 states and 319 transitions. [2025-02-06 04:51:50,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-02-06 04:51:50,877 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 15.5) internal successors, (31), 2 states have internal predecessors, (31), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 71 [2025-02-06 04:51:50,878 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 04:51:50,884 INFO L225 Difference]: With dead ends: 239 [2025-02-06 04:51:50,886 INFO L226 Difference]: Without dead ends: 114 [2025-02-06 04:51:50,894 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 72 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-02-06 04:51:50,896 INFO L435 NwaCegarLoop]: 152 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, 152 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-06 04:51:50,900 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 152 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-06 04:51:50,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2025-02-06 04:51:50,935 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 114. [2025-02-06 04:51:50,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 114 states, 71 states have (on average 1.1549295774647887) internal successors, (82), 72 states have internal predecessors, (82), 30 states have call successors, (30), 13 states have call predecessors, (30), 12 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) [2025-02-06 04:51:50,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 140 transitions. [2025-02-06 04:51:50,944 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 140 transitions. Word has length 71 [2025-02-06 04:51:50,944 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 04:51:50,945 INFO L471 AbstractCegarLoop]: Abstraction has 114 states and 140 transitions. [2025-02-06 04:51:50,945 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 15.5) internal successors, (31), 2 states have internal predecessors, (31), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2025-02-06 04:51:50,945 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 140 transitions. [2025-02-06 04:51:50,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2025-02-06 04:51:50,947 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 04:51:50,948 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 04:51:50,961 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2025-02-06 04:51:51,149 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2025-02-06 04:51:51,149 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-06 04:51:51,149 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 04:51:51,150 INFO L85 PathProgramCache]: Analyzing trace with hash 493357272, now seen corresponding path program 1 times [2025-02-06 04:51:51,150 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 04:51:51,150 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [337667865] [2025-02-06 04:51:51,150 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 04:51:51,150 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 04:51:55,492 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 71 statements into 1 equivalence classes. [2025-02-06 04:51:55,661 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 71 of 71 statements. [2025-02-06 04:51:55,662 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 04:51:55,663 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 04:51:56,212 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2025-02-06 04:51:56,212 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 04:51:56,212 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [337667865] [2025-02-06 04:51:56,212 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [337667865] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 04:51:56,212 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 04:51:56,212 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-06 04:51:56,212 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2076597696] [2025-02-06 04:51:56,212 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 04:51:56,213 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-06 04:51:56,213 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 04:51:56,214 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-06 04:51:56,214 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-06 04:51:56,214 INFO L87 Difference]: Start difference. First operand 114 states and 140 transitions. Second operand has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2025-02-06 04:51:56,324 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 04:51:56,324 INFO L93 Difference]: Finished difference Result 202 states and 249 transitions. [2025-02-06 04:51:56,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-06 04:51:56,326 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 71 [2025-02-06 04:51:56,326 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 04:51:56,327 INFO L225 Difference]: With dead ends: 202 [2025-02-06 04:51:56,329 INFO L226 Difference]: Without dead ends: 115 [2025-02-06 04:51:56,329 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-06 04:51:56,330 INFO L435 NwaCegarLoop]: 139 mSDtfsCounter, 0 mSDsluCounter, 135 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 274 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-02-06 04:51:56,331 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 274 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-06 04:51:56,332 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2025-02-06 04:51:56,342 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 115. [2025-02-06 04:51:56,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 115 states, 72 states have (on average 1.1527777777777777) internal successors, (83), 73 states have internal predecessors, (83), 30 states have call successors, (30), 13 states have call predecessors, (30), 12 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) [2025-02-06 04:51:56,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 141 transitions. [2025-02-06 04:51:56,347 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 141 transitions. Word has length 71 [2025-02-06 04:51:56,348 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 04:51:56,349 INFO L471 AbstractCegarLoop]: Abstraction has 115 states and 141 transitions. [2025-02-06 04:51:56,349 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2025-02-06 04:51:56,349 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 141 transitions. [2025-02-06 04:51:56,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2025-02-06 04:51:56,351 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 04:51:56,351 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 04:51:56,351 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-02-06 04:51:56,351 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-06 04:51:56,352 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 04:51:56,352 INFO L85 PathProgramCache]: Analyzing trace with hash -137101353, now seen corresponding path program 1 times [2025-02-06 04:51:56,352 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 04:51:56,352 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1691673170] [2025-02-06 04:51:56,352 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 04:51:56,352 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 04:52:00,176 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 71 statements into 1 equivalence classes. [2025-02-06 04:52:00,308 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 71 of 71 statements. [2025-02-06 04:52:00,308 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 04:52:00,308 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 04:52:01,426 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2025-02-06 04:52:01,426 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 04:52:01,426 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1691673170] [2025-02-06 04:52:01,427 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1691673170] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 04:52:01,427 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [846149327] [2025-02-06 04:52:01,427 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 04:52:01,427 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 04:52:01,427 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 04:52:01,431 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 04:52:01,432 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-02-06 04:52:05,512 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 71 statements into 1 equivalence classes. [2025-02-06 04:52:06,036 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 71 of 71 statements. [2025-02-06 04:52:06,036 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 04:52:06,036 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 04:52:06,054 INFO L256 TraceCheckSpWp]: Trace formula consists of 4081 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-02-06 04:52:06,060 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 04:52:06,681 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2025-02-06 04:52:06,682 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 04:52:06,682 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [846149327] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 04:52:06,682 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-06 04:52:06,682 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [5] total 9 [2025-02-06 04:52:06,682 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1452562682] [2025-02-06 04:52:06,682 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 04:52:06,683 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-06 04:52:06,683 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 04:52:06,684 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-06 04:52:06,684 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2025-02-06 04:52:06,685 INFO L87 Difference]: Start difference. First operand 115 states and 141 transitions. Second operand has 6 states, 6 states have (on average 5.833333333333333) internal successors, (35), 6 states have internal predecessors, (35), 3 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2025-02-06 04:52:08,054 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 04:52:08,054 INFO L93 Difference]: Finished difference Result 194 states and 241 transitions. [2025-02-06 04:52:08,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-06 04:52:08,055 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.833333333333333) internal successors, (35), 6 states have internal predecessors, (35), 3 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 71 [2025-02-06 04:52:08,055 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 04:52:08,058 INFO L225 Difference]: With dead ends: 194 [2025-02-06 04:52:08,058 INFO L226 Difference]: Without dead ends: 117 [2025-02-06 04:52:08,058 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 68 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2025-02-06 04:52:08,059 INFO L435 NwaCegarLoop]: 112 mSDtfsCounter, 149 mSDsluCounter, 307 mSDsCounter, 0 mSdLazyCounter, 97 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 151 SdHoareTripleChecker+Valid, 419 SdHoareTripleChecker+Invalid, 126 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 97 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2025-02-06 04:52:08,059 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [151 Valid, 419 Invalid, 126 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 97 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2025-02-06 04:52:08,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117 states. [2025-02-06 04:52:08,069 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117 to 117. [2025-02-06 04:52:08,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 117 states, 73 states have (on average 1.1506849315068493) internal successors, (84), 75 states have internal predecessors, (84), 30 states have call successors, (30), 13 states have call predecessors, (30), 13 states have return successors, (30), 28 states have call predecessors, (30), 28 states have call successors, (30) [2025-02-06 04:52:08,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 117 states and 144 transitions. [2025-02-06 04:52:08,071 INFO L78 Accepts]: Start accepts. Automaton has 117 states and 144 transitions. Word has length 71 [2025-02-06 04:52:08,071 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 04:52:08,071 INFO L471 AbstractCegarLoop]: Abstraction has 117 states and 144 transitions. [2025-02-06 04:52:08,071 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.833333333333333) internal successors, (35), 6 states have internal predecessors, (35), 3 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2025-02-06 04:52:08,071 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 144 transitions. [2025-02-06 04:52:08,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2025-02-06 04:52:08,074 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 04:52:08,074 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 04:52:08,091 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2025-02-06 04:52:08,275 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 04:52:08,275 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-06 04:52:08,276 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 04:52:08,276 INFO L85 PathProgramCache]: Analyzing trace with hash 1054049366, now seen corresponding path program 1 times [2025-02-06 04:52:08,276 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 04:52:08,276 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [295398542] [2025-02-06 04:52:08,276 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 04:52:08,276 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 04:52:11,783 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 86 statements into 1 equivalence classes. [2025-02-06 04:52:11,933 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 86 of 86 statements. [2025-02-06 04:52:11,935 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 04:52:11,935 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 04:52:13,427 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2025-02-06 04:52:13,429 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 04:52:13,429 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [295398542] [2025-02-06 04:52:13,429 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [295398542] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 04:52:13,429 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1739321651] [2025-02-06 04:52:13,429 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 04:52:13,430 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 04:52:13,430 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 04:52:13,432 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 04:52:13,434 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2025-02-06 04:52:17,862 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 86 statements into 1 equivalence classes. [2025-02-06 04:52:18,306 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 86 of 86 statements. [2025-02-06 04:52:18,306 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 04:52:18,306 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 04:52:18,323 INFO L256 TraceCheckSpWp]: Trace formula consists of 4208 conjuncts, 7 conjuncts are in the unsatisfiable core [2025-02-06 04:52:18,329 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 04:52:19,526 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2025-02-06 04:52:19,527 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 04:52:19,527 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1739321651] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 04:52:19,527 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-06 04:52:19,528 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [7] total 13 [2025-02-06 04:52:19,528 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [844431573] [2025-02-06 04:52:19,528 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 04:52:19,528 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-02-06 04:52:19,528 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 04:52:19,529 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-02-06 04:52:19,530 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2025-02-06 04:52:19,530 INFO L87 Difference]: Start difference. First operand 117 states and 144 transitions. Second operand has 8 states, 8 states have (on average 6.125) internal successors, (49), 7 states have internal predecessors, (49), 4 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (13), 4 states have call predecessors, (13), 4 states have call successors, (13) [2025-02-06 04:52:21,838 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 04:52:21,838 INFO L93 Difference]: Finished difference Result 183 states and 222 transitions. [2025-02-06 04:52:21,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-02-06 04:52:21,839 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.125) internal successors, (49), 7 states have internal predecessors, (49), 4 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (13), 4 states have call predecessors, (13), 4 states have call successors, (13) Word has length 86 [2025-02-06 04:52:21,839 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 04:52:21,840 INFO L225 Difference]: With dead ends: 183 [2025-02-06 04:52:21,840 INFO L226 Difference]: Without dead ends: 115 [2025-02-06 04:52:21,841 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 83 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=54, Invalid=252, Unknown=0, NotChecked=0, Total=306 [2025-02-06 04:52:21,842 INFO L435 NwaCegarLoop]: 106 mSDtfsCounter, 151 mSDsluCounter, 492 mSDsCounter, 0 mSdLazyCounter, 173 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 151 SdHoareTripleChecker+Valid, 598 SdHoareTripleChecker+Invalid, 215 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 173 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2025-02-06 04:52:21,842 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [151 Valid, 598 Invalid, 215 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 173 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2025-02-06 04:52:21,843 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2025-02-06 04:52:21,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 115. [2025-02-06 04:52:21,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 115 states, 72 states have (on average 1.1388888888888888) internal successors, (82), 73 states have internal predecessors, (82), 30 states have call successors, (30), 13 states have call predecessors, (30), 12 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) [2025-02-06 04:52:21,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 140 transitions. [2025-02-06 04:52:21,852 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 140 transitions. Word has length 86 [2025-02-06 04:52:21,853 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 04:52:21,853 INFO L471 AbstractCegarLoop]: Abstraction has 115 states and 140 transitions. [2025-02-06 04:52:21,853 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.125) internal successors, (49), 7 states have internal predecessors, (49), 4 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (13), 4 states have call predecessors, (13), 4 states have call successors, (13) [2025-02-06 04:52:21,853 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 140 transitions. [2025-02-06 04:52:21,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2025-02-06 04:52:21,854 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 04:52:21,854 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 04:52:21,870 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2025-02-06 04:52:22,054 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 04:52:22,055 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-06 04:52:22,055 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 04:52:22,056 INFO L85 PathProgramCache]: Analyzing trace with hash -771761892, now seen corresponding path program 1 times [2025-02-06 04:52:22,056 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 04:52:22,056 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1902887943] [2025-02-06 04:52:22,056 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 04:52:22,056 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 04:52:25,612 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 116 statements into 1 equivalence classes. [2025-02-06 04:52:28,299 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 116 of 116 statements. [2025-02-06 04:52:28,300 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 04:52:28,300 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 04:52:37,367 INFO L134 CoverageAnalysis]: Checked inductivity of 97 backedges. 23 proven. 3 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2025-02-06 04:52:37,367 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 04:52:37,367 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1902887943] [2025-02-06 04:52:37,367 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1902887943] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 04:52:37,367 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1494166660] [2025-02-06 04:52:37,367 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 04:52:37,367 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 04:52:37,367 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 04:52:37,369 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 04:52:37,370 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2025-02-06 04:52:42,137 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 116 statements into 1 equivalence classes.