./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/aws-c-common/aws_array_list_erase_harness.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_erase_harness.i -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash d31a3c72327f82612c1df0b26c3fcc0fecf0a10b67b9a605f782e4835b0f6e1b --- Real Ultimate output --- This is Ultimate 0.3.0-?-c00e63d-m [2025-02-06 04:49:51,327 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-06 04:49:51,385 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2025-02-06 04:49:51,390 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-06 04:49:51,393 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-06 04:49:51,416 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-06 04:49:51,417 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-06 04:49:51,417 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-06 04:49:51,417 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-06 04:49:51,417 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-06 04:49:51,418 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-06 04:49:51,418 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-06 04:49:51,418 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-06 04:49:51,418 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-06 04:49:51,419 INFO L153 SettingsManager]: * Use SBE=true [2025-02-06 04:49:51,419 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-06 04:49:51,419 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-06 04:49:51,419 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-06 04:49:51,419 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-06 04:49:51,419 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-06 04:49:51,419 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-06 04:49:51,420 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-06 04:49:51,420 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-06 04:49:51,420 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-06 04:49:51,420 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-06 04:49:51,420 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-06 04:49:51,420 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-06 04:49:51,420 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-06 04:49:51,420 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-06 04:49:51,420 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 04:49:51,420 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-06 04:49:51,420 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-06 04:49:51,420 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-02-06 04:49:51,420 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-02-06 04:49:51,420 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-06 04:49:51,420 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-06 04:49:51,420 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-06 04:49:51,420 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-06 04:49:51,420 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-06 04:49:51,421 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-06 04:49:51,421 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 -> d31a3c72327f82612c1df0b26c3fcc0fecf0a10b67b9a605f782e4835b0f6e1b [2025-02-06 04:49:51,677 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-06 04:49:51,686 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-06 04:49:51,689 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-06 04:49:51,690 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-06 04:49:51,690 INFO L274 PluginConnector]: CDTParser initialized [2025-02-06 04:49:51,692 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_array_list_erase_harness.i [2025-02-06 04:49:52,901 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/c9f7375ff/de6021c2022648498843e86c97b48b9d/FLAG4bf0a9e52 [2025-02-06 04:49:53,275 INFO L384 CDTParser]: Found 1 translation units. [2025-02-06 04:49:53,275 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_array_list_erase_harness.i [2025-02-06 04:49:53,300 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/c9f7375ff/de6021c2022648498843e86c97b48b9d/FLAG4bf0a9e52 [2025-02-06 04:49:53,314 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/c9f7375ff/de6021c2022648498843e86c97b48b9d [2025-02-06 04:49:53,316 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-06 04:49:53,317 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-06 04:49:53,318 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-06 04:49:53,318 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-06 04:49:53,321 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-06 04:49:53,322 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 04:49:53" (1/1) ... [2025-02-06 04:49:53,324 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@64e7f772 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 04:49:53, skipping insertion in model container [2025-02-06 04:49:53,324 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 04:49:53" (1/1) ... [2025-02-06 04:49:53,396 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-06 04:49:53,580 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_erase_harness.i[4494,4507] [2025-02-06 04:49:53,587 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_erase_harness.i[4554,4567] [2025-02-06 04:49:54,131 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 04:49:54,131 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 04:49:54,132 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 04:49:54,132 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 04:49:54,133 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 04:49:54,149 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 04:49:54,149 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 04:49:54,150 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 04:49:54,151 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 04:49:54,152 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 04:49:54,152 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 04:49:54,152 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 04:49:54,153 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 04:49:54,457 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 04:49:54,457 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 04:49:54,464 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 04:49:54,464 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 04:49:54,476 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 04:49:54,476 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 04:49:54,482 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 04:49:54,486 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 04:49:54,531 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 04:49:54,532 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 04:49:54,535 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 04:49:54,558 INFO L200 MainTranslator]: Completed pre-run [2025-02-06 04:49:54,577 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_erase_harness.i[4494,4507] [2025-02-06 04:49:54,578 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_erase_harness.i[4554,4567] [2025-02-06 04:49:54,611 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 04:49:54,612 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 04:49:54,612 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 04:49:54,612 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 04:49:54,613 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 04:49:54,617 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 04:49:54,617 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 04:49:54,618 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 04:49:54,618 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 04:49:54,618 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 04:49:54,619 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 04:49:54,619 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 04:49:54,619 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 04:49:54,678 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 04:49:54,678 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 04:49:54,682 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 04:49:54,683 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 04:49:54,683 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 04:49:54,683 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 04:49:54,684 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 04:49:54,689 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 04:49:54,694 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [7825-7836] [2025-02-06 04:49:54,709 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 04:49:54,709 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 04:49:54,710 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 04:49:54,873 INFO L204 MainTranslator]: Completed translation [2025-02-06 04:49:54,874 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 04:49:54 WrapperNode [2025-02-06 04:49:54,874 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-06 04:49:54,875 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-06 04:49:54,875 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-06 04:49:54,875 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-06 04:49:54,880 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 04:49:54" (1/1) ... [2025-02-06 04:49:54,943 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 04:49:54" (1/1) ... [2025-02-06 04:49:54,986 INFO L138 Inliner]: procedures = 678, calls = 1677, calls flagged for inlining = 52, calls inlined = 11, statements flattened = 734 [2025-02-06 04:49:54,991 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-06 04:49:54,992 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-06 04:49:54,992 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-06 04:49:54,992 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-06 04:49:54,999 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 04:49:54" (1/1) ... [2025-02-06 04:49:55,000 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 04:49:54" (1/1) ... [2025-02-06 04:49:55,011 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 04:49:54" (1/1) ... [2025-02-06 04:49:55,073 INFO L175 MemorySlicer]: Split 331 memory accesses to 6 slices as follows [238, 3, 2, 9, 6, 73]. 72 percent of accesses are in the largest equivalence class. The 24 initializations are split as follows [6, 1, 2, 5, 0, 10]. The 243 writes are split as follows [232, 1, 0, 2, 2, 6]. [2025-02-06 04:49:55,075 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 04:49:54" (1/1) ... [2025-02-06 04:49:55,076 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 04:49:54" (1/1) ... [2025-02-06 04:49:55,114 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 04:49:54" (1/1) ... [2025-02-06 04:49:55,119 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 04:49:54" (1/1) ... [2025-02-06 04:49:55,133 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 04:49:54" (1/1) ... [2025-02-06 04:49:55,140 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 04:49:54" (1/1) ... [2025-02-06 04:49:55,152 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-06 04:49:55,153 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-06 04:49:55,153 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-06 04:49:55,154 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-06 04:49:55,154 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 04:49:54" (1/1) ... [2025-02-06 04:49:55,159 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 04:49:55,170 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 04:49:55,189 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 04:49:55,196 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 04:49:55,213 INFO L130 BoogieDeclarations]: Found specification of procedure memmove_impl [2025-02-06 04:49:55,213 INFO L138 BoogieDeclarations]: Found implementation of procedure memmove_impl [2025-02-06 04:49:55,213 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-02-06 04:49:55,213 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_bounded [2025-02-06 04:49:55,213 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_bounded [2025-02-06 04:49:55,213 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_valid [2025-02-06 04:49:55,213 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_valid [2025-02-06 04:49:55,213 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2025-02-06 04:49:55,213 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2025-02-06 04:49:55,214 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2025-02-06 04:49:55,214 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2025-02-06 04:49:55,214 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2025-02-06 04:49:55,214 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2025-02-06 04:49:55,214 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2025-02-06 04:49:55,214 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2025-02-06 04:49:55,214 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-02-06 04:49:55,214 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-02-06 04:49:55,214 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2025-02-06 04:49:55,214 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2025-02-06 04:49:55,214 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2025-02-06 04:49:55,214 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2025-02-06 04:49:55,214 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2025-02-06 04:49:55,214 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2025-02-06 04:49:55,214 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2025-02-06 04:49:55,214 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2025-02-06 04:49:55,214 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-02-06 04:49:55,214 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-06 04:49:55,214 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint8_t [2025-02-06 04:49:55,214 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint8_t [2025-02-06 04:49:55,214 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2025-02-06 04:49:55,214 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2025-02-06 04:49:55,214 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2025-02-06 04:49:55,214 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2025-02-06 04:49:55,214 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2025-02-06 04:49:55,214 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2025-02-06 04:49:55,214 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-06 04:49:55,215 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-06 04:49:55,215 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2025-02-06 04:49:55,215 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2025-02-06 04:49:55,215 INFO L130 BoogieDeclarations]: Found specification of procedure assert_byte_from_buffer_matches [2025-02-06 04:49:55,215 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_byte_from_buffer_matches [2025-02-06 04:49:55,215 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_size_t [2025-02-06 04:49:55,215 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_size_t [2025-02-06 04:49:55,215 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2025-02-06 04:49:55,215 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2025-02-06 04:49:55,215 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2025-02-06 04:49:55,215 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2025-02-06 04:49:55,215 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2025-02-06 04:49:55,215 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2025-02-06 04:49:55,215 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2025-02-06 04:49:55,215 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2025-02-06 04:49:55,215 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_length [2025-02-06 04:49:55,215 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_length [2025-02-06 04:49:55,215 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2025-02-06 04:49:55,215 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2025-02-06 04:49:55,215 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_pop_back [2025-02-06 04:49:55,215 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_pop_back [2025-02-06 04:49:55,215 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-02-06 04:49:55,215 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2025-02-06 04:49:55,215 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2025-02-06 04:49:55,215 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2025-02-06 04:49:55,215 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2025-02-06 04:49:55,215 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2025-02-06 04:49:55,215 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2025-02-06 04:49:55,215 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2025-02-06 04:49:55,215 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2025-02-06 04:49:55,215 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2025-02-06 04:49:55,215 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2025-02-06 04:49:55,215 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2025-02-06 04:49:55,215 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2025-02-06 04:49:55,215 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2025-02-06 04:49:55,215 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2025-02-06 04:49:55,215 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2025-02-06 04:49:55,215 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2025-02-06 04:49:55,215 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-02-06 04:49:55,215 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-02-06 04:49:55,215 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2025-02-06 04:49:55,216 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2025-02-06 04:49:55,216 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2025-02-06 04:49:55,216 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2025-02-06 04:49:55,219 INFO L130 BoogieDeclarations]: Found specification of procedure my_memmove [2025-02-06 04:49:55,220 INFO L138 BoogieDeclarations]: Found implementation of procedure my_memmove [2025-02-06 04:49:55,220 INFO L130 BoogieDeclarations]: Found specification of procedure memset_impl [2025-02-06 04:49:55,220 INFO L138 BoogieDeclarations]: Found implementation of procedure memset_impl [2025-02-06 04:49:55,220 INFO L130 BoogieDeclarations]: Found specification of procedure my_memset [2025-02-06 04:49:55,220 INFO L138 BoogieDeclarations]: Found implementation of procedure my_memset [2025-02-06 04:49:55,220 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_array_list_has_allocated_data_member [2025-02-06 04:49:55,220 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_array_list_has_allocated_data_member [2025-02-06 04:49:55,220 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-02-06 04:49:55,220 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-02-06 04:49:55,220 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-02-06 04:49:55,220 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2025-02-06 04:49:55,220 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2025-02-06 04:49:55,220 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2025-02-06 04:49:55,445 INFO L257 CfgBuilder]: Building ICFG [2025-02-06 04:49:55,447 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-06 04:49:55,476 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L2782: havoc #t~malloc77.base, #t~malloc77.offset; [2025-02-06 04:49:55,478 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L267: havoc #t~nondet10; [2025-02-06 04:49:55,492 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L263: havoc #t~nondet6; [2025-02-06 04:49:55,522 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L2588: havoc #t~ret57#1; [2025-02-06 04:49:55,526 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L7446: havoc #t~ret688.base, #t~ret688.offset; [2025-02-06 04:49:55,600 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 04:49:55,603 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L261: havoc #t~nondet4; [2025-02-06 04:49:55,607 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L7393: havoc #t~ret682.base, #t~ret682.offset; [2025-02-06 04:50:01,939 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L3355: havoc aws_array_list_pop_front_#t~ret182#1; [2025-02-06 04:50:01,939 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L3387: havoc aws_array_list_erase_#t~ret196#1; [2025-02-06 04:50:02,178 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L3445: havoc #t~ret230; [2025-02-06 04:50:02,178 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L3432: havoc ~last_item_offset~1; [2025-02-06 04:50:02,266 INFO L? ?]: Removed 142 outVars from TransFormulas that were not future-live. [2025-02-06 04:50:02,266 INFO L308 CfgBuilder]: Performing block encoding [2025-02-06 04:50:02,280 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-06 04:50:02,283 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-06 04:50:02,284 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 04:50:02 BoogieIcfgContainer [2025-02-06 04:50:02,284 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-06 04:50:02,286 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-06 04:50:02,287 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-06 04:50:02,291 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-06 04:50:02,291 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.02 04:49:53" (1/3) ... [2025-02-06 04:50:02,292 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@197bc0be and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.02 04:50:02, skipping insertion in model container [2025-02-06 04:50:02,292 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 04:49:54" (2/3) ... [2025-02-06 04:50:02,292 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@197bc0be and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.02 04:50:02, skipping insertion in model container [2025-02-06 04:50:02,293 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 04:50:02" (3/3) ... [2025-02-06 04:50:02,294 INFO L128 eAbstractionObserver]: Analyzing ICFG aws_array_list_erase_harness.i [2025-02-06 04:50:02,307 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-06 04:50:02,308 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG aws_array_list_erase_harness.i that has 21 procedures, 254 locations, 1 initial locations, 0 loop locations, and 1 error locations. [2025-02-06 04:50:02,348 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-06 04:50:02,356 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;@2321bf18, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-06 04:50:02,357 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-02-06 04:50:02,360 INFO L276 IsEmpty]: Start isEmpty. Operand has 254 states, 144 states have (on average 1.1875) internal successors, (171), 145 states have internal predecessors, (171), 88 states have call successors, (88), 20 states have call predecessors, (88), 20 states have return successors, (88), 88 states have call predecessors, (88), 88 states have call successors, (88) [2025-02-06 04:50:02,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2025-02-06 04:50:02,367 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 04:50:02,368 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 04:50:02,368 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-06 04:50:02,371 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 04:50:02,371 INFO L85 PathProgramCache]: Analyzing trace with hash -453061669, now seen corresponding path program 1 times [2025-02-06 04:50:02,377 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 04:50:02,377 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1339975617] [2025-02-06 04:50:02,378 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 04:50:02,378 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 04:50:07,107 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 87 statements into 1 equivalence classes. [2025-02-06 04:50:07,452 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 87 of 87 statements. [2025-02-06 04:50:07,452 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 04:50:07,452 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 04:50:07,861 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 74 trivial. 0 not checked. [2025-02-06 04:50:07,862 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 04:50:07,862 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1339975617] [2025-02-06 04:50:07,863 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1339975617] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 04:50:07,864 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [485357612] [2025-02-06 04:50:07,865 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 04:50:07,865 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 04:50:07,865 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 04:50:07,868 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 04:50:07,869 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 04:50:12,207 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 87 statements into 1 equivalence classes. [2025-02-06 04:50:12,647 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 87 of 87 statements. [2025-02-06 04:50:12,648 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 04:50:12,648 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 04:50:12,672 INFO L256 TraceCheckSpWp]: Trace formula consists of 4132 conjuncts, 1 conjuncts are in the unsatisfiable core [2025-02-06 04:50:12,679 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 04:50:12,690 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 74 trivial. 0 not checked. [2025-02-06 04:50:12,690 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 04:50:12,690 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [485357612] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 04:50:12,690 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-06 04:50:12,690 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2025-02-06 04:50:12,692 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1619803611] [2025-02-06 04:50:12,692 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 04:50:12,695 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-02-06 04:50:12,695 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 04:50:12,707 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-02-06 04:50:12,708 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-02-06 04:50:12,710 INFO L87 Difference]: Start difference. First operand has 254 states, 144 states have (on average 1.1875) internal successors, (171), 145 states have internal predecessors, (171), 88 states have call successors, (88), 20 states have call predecessors, (88), 20 states have return successors, (88), 88 states have call predecessors, (88), 88 states have call successors, (88) Second operand has 2 states, 2 states have (on average 17.5) internal successors, (35), 2 states have internal predecessors, (35), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2025-02-06 04:50:12,768 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 04:50:12,769 INFO L93 Difference]: Finished difference Result 499 states and 739 transitions. [2025-02-06 04:50:12,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-02-06 04:50:12,771 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 17.5) internal successors, (35), 2 states have internal predecessors, (35), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 87 [2025-02-06 04:50:12,771 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 04:50:12,777 INFO L225 Difference]: With dead ends: 499 [2025-02-06 04:50:12,777 INFO L226 Difference]: Without dead ends: 249 [2025-02-06 04:50:12,782 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 88 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 04:50:12,784 INFO L435 NwaCegarLoop]: 345 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, 345 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 04:50:12,785 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 345 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-06 04:50:12,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 249 states. [2025-02-06 04:50:12,831 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 249 to 249. [2025-02-06 04:50:12,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 249 states, 140 states have (on average 1.1785714285714286) internal successors, (165), 141 states have internal predecessors, (165), 88 states have call successors, (88), 20 states have call predecessors, (88), 20 states have return successors, (87), 87 states have call predecessors, (87), 87 states have call successors, (87) [2025-02-06 04:50:12,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 249 states to 249 states and 340 transitions. [2025-02-06 04:50:12,842 INFO L78 Accepts]: Start accepts. Automaton has 249 states and 340 transitions. Word has length 87 [2025-02-06 04:50:12,843 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 04:50:12,843 INFO L471 AbstractCegarLoop]: Abstraction has 249 states and 340 transitions. [2025-02-06 04:50:12,844 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 17.5) internal successors, (35), 2 states have internal predecessors, (35), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2025-02-06 04:50:12,844 INFO L276 IsEmpty]: Start isEmpty. Operand 249 states and 340 transitions. [2025-02-06 04:50:12,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2025-02-06 04:50:12,846 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 04:50:12,846 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 04:50:12,860 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 04:50:13,047 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 04:50:13,047 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-06 04:50:13,048 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 04:50:13,048 INFO L85 PathProgramCache]: Analyzing trace with hash -1616597031, now seen corresponding path program 1 times [2025-02-06 04:50:13,048 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 04:50:13,048 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1934419430] [2025-02-06 04:50:13,048 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 04:50:13,049 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 04:50:16,972 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 87 statements into 1 equivalence classes. [2025-02-06 04:50:17,131 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 87 of 87 statements. [2025-02-06 04:50:17,132 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 04:50:17,132 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 04:50:19,477 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 11 proven. 10 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2025-02-06 04:50:19,478 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 04:50:19,478 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1934419430] [2025-02-06 04:50:19,478 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1934419430] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 04:50:19,478 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [717198557] [2025-02-06 04:50:19,478 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 04:50:19,478 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 04:50:19,478 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 04:50:19,480 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 04:50:19,482 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 04:50:24,123 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 87 statements into 1 equivalence classes. [2025-02-06 04:50:24,526 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 87 of 87 statements. [2025-02-06 04:50:24,526 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 04:50:24,526 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 04:50:24,544 INFO L256 TraceCheckSpWp]: Trace formula consists of 4132 conjuncts, 57 conjuncts are in the unsatisfiable core [2025-02-06 04:50:24,555 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 04:50:27,207 WARN L873 $PredicateComparison]: unable to prove that (exists ((v_ensure_array_list_has_allocated_data_member_~list.offset_8 Int)) (and (= |c_#memory_$Pointer$#5.base| (store |c_old(#memory_$Pointer$#5.base)| |c_ensure_array_list_has_allocated_data_member_#in~list.base| (store (select |c_old(#memory_$Pointer$#5.base)| |c_ensure_array_list_has_allocated_data_member_#in~list.base|) v_ensure_array_list_has_allocated_data_member_~list.offset_8 (select (select |c_#memory_$Pointer$#5.base| |c_ensure_array_list_has_allocated_data_member_#in~list.base|) v_ensure_array_list_has_allocated_data_member_~list.offset_8)))) (<= v_ensure_array_list_has_allocated_data_member_~list.offset_8 |c_ensure_array_list_has_allocated_data_member_#in~list.offset|) (= |c_#memory_$Pointer$#5.offset| (store |c_old(#memory_$Pointer$#5.offset)| |c_ensure_array_list_has_allocated_data_member_#in~list.base| (store (select |c_old(#memory_$Pointer$#5.offset)| |c_ensure_array_list_has_allocated_data_member_#in~list.base|) v_ensure_array_list_has_allocated_data_member_~list.offset_8 (select (select |c_#memory_$Pointer$#5.offset| |c_ensure_array_list_has_allocated_data_member_#in~list.base|) v_ensure_array_list_has_allocated_data_member_~list.offset_8)))))) is different from true [2025-02-06 04:50:27,326 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-02-06 04:50:27,331 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2025-02-06 04:50:27,386 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-02-06 04:50:27,387 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2025-02-06 04:50:31,027 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 47 proven. 16 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2025-02-06 04:50:31,027 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-06 04:50:36,839 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [717198557] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 04:50:36,840 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-02-06 04:50:36,840 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 13] total 16 [2025-02-06 04:50:36,840 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [920711913] [2025-02-06 04:50:36,840 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-02-06 04:50:36,841 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2025-02-06 04:50:36,841 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 04:50:36,842 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2025-02-06 04:50:36,842 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=536, Unknown=1, NotChecked=46, Total=650 [2025-02-06 04:50:36,842 INFO L87 Difference]: Start difference. First operand 249 states and 340 transitions. Second operand has 16 states, 14 states have (on average 5.071428571428571) internal successors, (71), 13 states have internal predecessors, (71), 7 states have call successors, (31), 5 states have call predecessors, (31), 7 states have return successors, (28), 6 states have call predecessors, (28), 7 states have call successors, (28) [2025-02-06 04:51:17,788 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 04:51:17,789 INFO L93 Difference]: Finished difference Result 680 states and 975 transitions. [2025-02-06 04:51:17,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2025-02-06 04:51:17,790 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 14 states have (on average 5.071428571428571) internal successors, (71), 13 states have internal predecessors, (71), 7 states have call successors, (31), 5 states have call predecessors, (31), 7 states have return successors, (28), 6 states have call predecessors, (28), 7 states have call successors, (28) Word has length 87 [2025-02-06 04:51:17,790 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 04:51:17,795 INFO L225 Difference]: With dead ends: 680 [2025-02-06 04:51:17,795 INFO L226 Difference]: Without dead ends: 480 [2025-02-06 04:51:17,797 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 166 GetRequests, 114 SyntacticMatches, 15 SemanticMatches, 37 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 220 ImplicationChecksByTransitivity, 10.3s TimeCoverageRelationStatistics Valid=174, Invalid=1235, Unknown=1, NotChecked=72, Total=1482 [2025-02-06 04:51:17,797 INFO L435 NwaCegarLoop]: 305 mSDtfsCounter, 382 mSDsluCounter, 2019 mSDsCounter, 0 mSdLazyCounter, 4031 mSolverCounterSat, 356 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 36.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 428 SdHoareTripleChecker+Valid, 2324 SdHoareTripleChecker+Invalid, 5112 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 356 IncrementalHoareTripleChecker+Valid, 4031 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 720 IncrementalHoareTripleChecker+Unchecked, 37.2s IncrementalHoareTripleChecker+Time [2025-02-06 04:51:17,798 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [428 Valid, 2324 Invalid, 5112 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [356 Valid, 4031 Invalid, 5 Unknown, 720 Unchecked, 37.2s Time] [2025-02-06 04:51:17,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 480 states. [2025-02-06 04:51:17,861 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 480 to 476. [2025-02-06 04:51:17,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 476 states, 265 states have (on average 1.1773584905660377) internal successors, (312), 272 states have internal predecessors, (312), 169 states have call successors, (169), 37 states have call predecessors, (169), 41 states have return successors, (207), 166 states have call predecessors, (207), 167 states have call successors, (207) [2025-02-06 04:51:17,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 476 states to 476 states and 688 transitions. [2025-02-06 04:51:17,870 INFO L78 Accepts]: Start accepts. Automaton has 476 states and 688 transitions. Word has length 87 [2025-02-06 04:51:17,870 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 04:51:17,870 INFO L471 AbstractCegarLoop]: Abstraction has 476 states and 688 transitions. [2025-02-06 04:51:17,870 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 14 states have (on average 5.071428571428571) internal successors, (71), 13 states have internal predecessors, (71), 7 states have call successors, (31), 5 states have call predecessors, (31), 7 states have return successors, (28), 6 states have call predecessors, (28), 7 states have call successors, (28) [2025-02-06 04:51:17,871 INFO L276 IsEmpty]: Start isEmpty. Operand 476 states and 688 transitions. [2025-02-06 04:51:17,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2025-02-06 04:51:17,873 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 04:51:17,873 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 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, 1, 1, 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 04:51:17,889 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 04:51:18,074 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 04:51:18,074 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-06 04:51:18,075 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 04:51:18,075 INFO L85 PathProgramCache]: Analyzing trace with hash -1346536218, now seen corresponding path program 1 times [2025-02-06 04:51:18,075 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 04:51:18,075 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [829075171] [2025-02-06 04:51:18,075 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 04:51:18,075 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 04:51:21,890 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 102 statements into 1 equivalence classes. [2025-02-06 04:51:21,995 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 102 of 102 statements. [2025-02-06 04:51:21,996 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 04:51:21,996 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 04:51:23,049 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2025-02-06 04:51:23,049 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 04:51:23,049 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [829075171] [2025-02-06 04:51:23,049 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [829075171] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 04:51:23,050 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2093953069] [2025-02-06 04:51:23,050 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 04:51:23,051 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 04:51:23,051 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 04:51:23,052 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 04:51:23,054 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