./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 551b0097 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-?-551b009-m [2025-01-09 16:54:53,435 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-01-09 16:54:53,493 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2025-01-09 16:54:53,498 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-01-09 16:54:53,499 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-01-09 16:54:53,513 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-01-09 16:54:53,513 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-01-09 16:54:53,514 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-01-09 16:54:53,514 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-01-09 16:54:53,514 INFO L153 SettingsManager]: * Use memory slicer=true [2025-01-09 16:54:53,514 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-01-09 16:54:53,514 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-01-09 16:54:53,514 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-01-09 16:54:53,514 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-01-09 16:54:53,514 INFO L153 SettingsManager]: * Use SBE=true [2025-01-09 16:54:53,515 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-01-09 16:54:53,515 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-01-09 16:54:53,515 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-01-09 16:54:53,515 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-01-09 16:54:53,515 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-01-09 16:54:53,515 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-01-09 16:54:53,515 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-01-09 16:54:53,515 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-01-09 16:54:53,515 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-01-09 16:54:53,515 INFO L153 SettingsManager]: * Use constant arrays=true [2025-01-09 16:54:53,515 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-01-09 16:54:53,515 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 16:54:53,515 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-09 16:54:53,516 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 16:54:53,516 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 16:54:53,516 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-01-09 16:54:53,516 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 16:54:53,516 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-09 16:54:53,516 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 16:54:53,516 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 16:54:53,516 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-01-09 16:54:53,516 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-01-09 16:54:53,516 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-01-09 16:54:53,516 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-01-09 16:54:53,516 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-01-09 16:54:53,516 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-01-09 16:54:53,516 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-01-09 16:54:53,516 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-01-09 16:54:53,516 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-01-09 16:54:53,516 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-01-09 16:54:53,516 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 [2025-01-09 16:54:53,771 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-01-09 16:54:53,781 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-01-09 16:54:53,783 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-01-09 16:54:53,788 INFO L270 PluginConnector]: Initializing CDTParser... [2025-01-09 16:54:53,789 INFO L274 PluginConnector]: CDTParser initialized [2025-01-09 16:54:53,790 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_array_list_erase_harness.i [2025-01-09 16:54:54,950 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/aa6db16ad/a79a571328c54824ae18e964b2ee1c90/FLAGdd65cca3e [2025-01-09 16:54:55,466 INFO L384 CDTParser]: Found 1 translation units. [2025-01-09 16:54:55,467 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_array_list_erase_harness.i [2025-01-09 16:54:55,498 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/aa6db16ad/a79a571328c54824ae18e964b2ee1c90/FLAGdd65cca3e [2025-01-09 16:54:55,524 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/aa6db16ad/a79a571328c54824ae18e964b2ee1c90 [2025-01-09 16:54:55,526 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-01-09 16:54:55,528 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-01-09 16:54:55,529 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-01-09 16:54:55,529 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-01-09 16:54:55,531 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-01-09 16:54:55,532 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 04:54:55" (1/1) ... [2025-01-09 16:54:55,532 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@b70be81 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 04:54:55, skipping insertion in model container [2025-01-09 16:54:55,533 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 04:54:55" (1/1) ... [2025-01-09 16:54:55,596 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-01-09 16:54:55,769 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] [2025-01-09 16:54:55,776 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] [2025-01-09 16:54:56,247 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 16:54:56,248 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 16:54:56,249 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 16:54:56,250 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 16:54:56,251 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 16:54:56,264 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 16:54:56,266 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 16:54:56,267 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 16:54:56,269 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 16:54:56,270 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 16:54:56,270 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 16:54:56,270 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 16:54:56,271 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 16:54:56,593 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 16:54:56,594 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 16:54:56,601 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 16:54:56,601 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 16:54:56,609 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 16:54:56,610 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 16:54:56,618 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 16:54:56,623 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 16:54:56,665 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 16:54:56,666 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 16:54:56,670 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 16:54:56,700 INFO L200 MainTranslator]: Completed pre-run [2025-01-09 16:54:56,711 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] [2025-01-09 16:54:56,716 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] [2025-01-09 16:54:56,782 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 16:54:56,783 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 16:54:56,783 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 16:54:56,784 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 16:54:56,784 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 16:54:56,791 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 16:54:56,791 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 16:54:56,824 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 16:54:56,825 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 16:54:56,826 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 16:54:56,826 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 16:54:56,826 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 16:54:56,826 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 16:54:56,886 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 16:54:56,890 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 16:54:56,891 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 16:54:56,895 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 16:54:56,896 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 16:54:56,896 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 16:54:56,896 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 16:54:56,899 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 16:54:56,910 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [7825-7836] [2025-01-09 16:54:56,928 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 16:54:56,929 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 16:54:56,929 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 16:54:57,085 INFO L204 MainTranslator]: Completed translation [2025-01-09 16:54:57,085 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 04:54:57 WrapperNode [2025-01-09 16:54:57,087 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-01-09 16:54:57,088 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-01-09 16:54:57,089 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-01-09 16:54:57,089 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-01-09 16:54:57,094 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 04:54:57" (1/1) ... [2025-01-09 16:54:57,154 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 04:54:57" (1/1) ... [2025-01-09 16:54:57,212 INFO L138 Inliner]: procedures = 678, calls = 1677, calls flagged for inlining = 52, calls inlined = 11, statements flattened = 734 [2025-01-09 16:54:57,213 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-01-09 16:54:57,213 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-01-09 16:54:57,213 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-01-09 16:54:57,213 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-01-09 16:54:57,220 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 04:54:57" (1/1) ... [2025-01-09 16:54:57,220 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 04:54:57" (1/1) ... [2025-01-09 16:54:57,225 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 04:54:57" (1/1) ... [2025-01-09 16:54:57,276 INFO L175 MemorySlicer]: Split 331 memory accesses to 6 slices as follows [73, 238, 2, 9, 6, 3]. 72 percent of accesses are in the largest equivalence class. The 24 initializations are split as follows [10, 6, 2, 5, 0, 1]. The 243 writes are split as follows [6, 232, 0, 2, 2, 1]. [2025-01-09 16:54:57,276 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 04:54:57" (1/1) ... [2025-01-09 16:54:57,276 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 04:54:57" (1/1) ... [2025-01-09 16:54:57,306 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 04:54:57" (1/1) ... [2025-01-09 16:54:57,307 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 04:54:57" (1/1) ... [2025-01-09 16:54:57,309 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 04:54:57" (1/1) ... [2025-01-09 16:54:57,340 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 04:54:57" (1/1) ... [2025-01-09 16:54:57,343 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 04:54:57" (1/1) ... [2025-01-09 16:54:57,356 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-01-09 16:54:57,356 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-01-09 16:54:57,356 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-01-09 16:54:57,356 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-01-09 16:54:57,357 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 04:54:57" (1/1) ... [2025-01-09 16:54:57,361 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 16:54:57,371 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 16:54:57,383 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) [2025-01-09 16:54:57,391 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 [2025-01-09 16:54:57,405 INFO L130 BoogieDeclarations]: Found specification of procedure memmove_impl [2025-01-09 16:54:57,405 INFO L138 BoogieDeclarations]: Found implementation of procedure memmove_impl [2025-01-09 16:54:57,405 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-01-09 16:54:57,405 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_bounded [2025-01-09 16:54:57,405 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_bounded [2025-01-09 16:54:57,406 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_valid [2025-01-09 16:54:57,406 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_valid [2025-01-09 16:54:57,406 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2025-01-09 16:54:57,406 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2025-01-09 16:54:57,406 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2025-01-09 16:54:57,406 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2025-01-09 16:54:57,407 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2025-01-09 16:54:57,407 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2025-01-09 16:54:57,407 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2025-01-09 16:54:57,407 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2025-01-09 16:54:57,407 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-01-09 16:54:57,407 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-01-09 16:54:57,407 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2025-01-09 16:54:57,407 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2025-01-09 16:54:57,407 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2025-01-09 16:54:57,407 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2025-01-09 16:54:57,407 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2025-01-09 16:54:57,407 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2025-01-09 16:54:57,408 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2025-01-09 16:54:57,408 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2025-01-09 16:54:57,408 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-01-09 16:54:57,408 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-01-09 16:54:57,408 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint8_t [2025-01-09 16:54:57,409 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint8_t [2025-01-09 16:54:57,409 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2025-01-09 16:54:57,409 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2025-01-09 16:54:57,409 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2025-01-09 16:54:57,409 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2025-01-09 16:54:57,409 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2025-01-09 16:54:57,409 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2025-01-09 16:54:57,409 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-01-09 16:54:57,409 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-01-09 16:54:57,409 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2025-01-09 16:54:57,409 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2025-01-09 16:54:57,409 INFO L130 BoogieDeclarations]: Found specification of procedure assert_byte_from_buffer_matches [2025-01-09 16:54:57,409 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_byte_from_buffer_matches [2025-01-09 16:54:57,409 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_size_t [2025-01-09 16:54:57,409 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_size_t [2025-01-09 16:54:57,409 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2025-01-09 16:54:57,410 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2025-01-09 16:54:57,410 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2025-01-09 16:54:57,411 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2025-01-09 16:54:57,411 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2025-01-09 16:54:57,411 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2025-01-09 16:54:57,411 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2025-01-09 16:54:57,411 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2025-01-09 16:54:57,411 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_length [2025-01-09 16:54:57,411 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_length [2025-01-09 16:54:57,411 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2025-01-09 16:54:57,411 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2025-01-09 16:54:57,411 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_pop_back [2025-01-09 16:54:57,411 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_pop_back [2025-01-09 16:54:57,411 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-01-09 16:54:57,411 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2025-01-09 16:54:57,411 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2025-01-09 16:54:57,411 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2025-01-09 16:54:57,412 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2025-01-09 16:54:57,412 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2025-01-09 16:54:57,412 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2025-01-09 16:54:57,412 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2025-01-09 16:54:57,412 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2025-01-09 16:54:57,412 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2025-01-09 16:54:57,412 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2025-01-09 16:54:57,412 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2025-01-09 16:54:57,412 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2025-01-09 16:54:57,412 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2025-01-09 16:54:57,412 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2025-01-09 16:54:57,413 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2025-01-09 16:54:57,413 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2025-01-09 16:54:57,413 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-01-09 16:54:57,413 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-01-09 16:54:57,413 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2025-01-09 16:54:57,413 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2025-01-09 16:54:57,413 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2025-01-09 16:54:57,413 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2025-01-09 16:54:57,413 INFO L130 BoogieDeclarations]: Found specification of procedure my_memmove [2025-01-09 16:54:57,413 INFO L138 BoogieDeclarations]: Found implementation of procedure my_memmove [2025-01-09 16:54:57,413 INFO L130 BoogieDeclarations]: Found specification of procedure memset_impl [2025-01-09 16:54:57,414 INFO L138 BoogieDeclarations]: Found implementation of procedure memset_impl [2025-01-09 16:54:57,414 INFO L130 BoogieDeclarations]: Found specification of procedure my_memset [2025-01-09 16:54:57,414 INFO L138 BoogieDeclarations]: Found implementation of procedure my_memset [2025-01-09 16:54:57,414 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_array_list_has_allocated_data_member [2025-01-09 16:54:57,414 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_array_list_has_allocated_data_member [2025-01-09 16:54:57,414 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-01-09 16:54:57,414 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-01-09 16:54:57,414 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-01-09 16:54:57,414 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2025-01-09 16:54:57,414 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2025-01-09 16:54:57,414 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2025-01-09 16:54:57,681 INFO L234 CfgBuilder]: Building ICFG [2025-01-09 16:54:57,683 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-01-09 16:55:03,846 INFO L? ?]: Removed 142 outVars from TransFormulas that were not future-live. [2025-01-09 16:55:03,846 INFO L283 CfgBuilder]: Performing block encoding [2025-01-09 16:55:03,863 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-01-09 16:55:03,863 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2025-01-09 16:55:03,864 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 04:55:03 BoogieIcfgContainer [2025-01-09 16:55:03,864 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-01-09 16:55:03,865 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-01-09 16:55:03,865 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-01-09 16:55:03,869 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-01-09 16:55:03,869 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.01 04:54:55" (1/3) ... [2025-01-09 16:55:03,869 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e5bcba9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 04:55:03, skipping insertion in model container [2025-01-09 16:55:03,870 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 04:54:57" (2/3) ... [2025-01-09 16:55:03,870 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e5bcba9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 04:55:03, skipping insertion in model container [2025-01-09 16:55:03,870 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 04:55:03" (3/3) ... [2025-01-09 16:55:03,871 INFO L128 eAbstractionObserver]: Analyzing ICFG aws_array_list_erase_harness.i [2025-01-09 16:55:03,881 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-01-09 16:55:03,882 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. [2025-01-09 16:55:03,947 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-01-09 16:55:03,966 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;@42a4e2d2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-01-09 16:55:03,970 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-01-09 16:55:03,974 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) [2025-01-09 16:55:03,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2025-01-09 16:55:03,980 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 16:55:03,981 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] [2025-01-09 16:55:03,981 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 16:55:03,984 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 16:55:03,984 INFO L85 PathProgramCache]: Analyzing trace with hash 939077441, now seen corresponding path program 1 times [2025-01-09 16:55:03,990 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 16:55:03,990 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1073124159] [2025-01-09 16:55:03,990 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 16:55:03,990 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 16:55:08,421 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 87 statements into 1 equivalence classes. [2025-01-09 16:55:08,756 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 87 of 87 statements. [2025-01-09 16:55:08,757 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 16:55:08,757 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 16:55:09,150 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 74 trivial. 0 not checked. [2025-01-09 16:55:09,151 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 16:55:09,151 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1073124159] [2025-01-09 16:55:09,152 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1073124159] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 16:55:09,152 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [980400060] [2025-01-09 16:55:09,152 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 16:55:09,152 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 16:55:09,153 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 16:55:09,158 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) [2025-01-09 16:55:09,159 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 [2025-01-09 16:55:13,846 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 87 statements into 1 equivalence classes. [2025-01-09 16:55:14,315 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 87 of 87 statements. [2025-01-09 16:55:14,316 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 16:55:14,316 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 16:55:14,338 INFO L256 TraceCheckSpWp]: Trace formula consists of 4127 conjuncts, 1 conjuncts are in the unsatisfiable core [2025-01-09 16:55:14,349 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 16:55:14,359 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 74 trivial. 0 not checked. [2025-01-09 16:55:14,360 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 16:55:14,360 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [980400060] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 16:55:14,360 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-09 16:55:14,360 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2025-01-09 16:55:14,362 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1113166556] [2025-01-09 16:55:14,362 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 16:55:14,368 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-01-09 16:55:14,368 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 16:55:14,381 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-01-09 16:55:14,382 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-01-09 16:55:14,384 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) [2025-01-09 16:55:14,423 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 16:55:14,424 INFO L93 Difference]: Finished difference Result 499 states and 739 transitions. [2025-01-09 16:55:14,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-09 16:55:14,425 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 [2025-01-09 16:55:14,425 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 16:55:14,432 INFO L225 Difference]: With dead ends: 499 [2025-01-09 16:55:14,432 INFO L226 Difference]: Without dead ends: 249 [2025-01-09 16:55:14,436 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 [2025-01-09 16:55:14,437 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 [2025-01-09 16:55:14,437 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] [2025-01-09 16:55:14,447 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 249 states. [2025-01-09 16:55:14,474 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 249 to 249. [2025-01-09 16:55:14,475 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) [2025-01-09 16:55:14,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 249 states to 249 states and 340 transitions. [2025-01-09 16:55:14,486 INFO L78 Accepts]: Start accepts. Automaton has 249 states and 340 transitions. Word has length 87 [2025-01-09 16:55:14,487 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 16:55:14,488 INFO L471 AbstractCegarLoop]: Abstraction has 249 states and 340 transitions. [2025-01-09 16:55:14,488 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) [2025-01-09 16:55:14,488 INFO L276 IsEmpty]: Start isEmpty. Operand 249 states and 340 transitions. [2025-01-09 16:55:14,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2025-01-09 16:55:14,490 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 16:55:14,490 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] [2025-01-09 16:55:14,504 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2025-01-09 16:55:14,696 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 [2025-01-09 16:55:14,696 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 16:55:14,697 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 16:55:14,698 INFO L85 PathProgramCache]: Analyzing trace with hash -1387993283, now seen corresponding path program 1 times [2025-01-09 16:55:14,698 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 16:55:14,698 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [427845943] [2025-01-09 16:55:14,698 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 16:55:14,698 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 16:55:18,488 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 87 statements into 1 equivalence classes. [2025-01-09 16:55:18,628 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 87 of 87 statements. [2025-01-09 16:55:18,628 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 16:55:18,629 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 16:55:20,586 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 11 proven. 10 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2025-01-09 16:55:20,586 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 16:55:20,586 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [427845943] [2025-01-09 16:55:20,586 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [427845943] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 16:55:20,586 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1143750886] [2025-01-09 16:55:20,586 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 16:55:20,587 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 16:55:20,587 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 16:55:20,589 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) [2025-01-09 16:55:20,590 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 [2025-01-09 16:55:24,640 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 87 statements into 1 equivalence classes. [2025-01-09 16:55:25,101 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 87 of 87 statements. [2025-01-09 16:55:25,101 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 16:55:25,101 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 16:55:25,119 INFO L256 TraceCheckSpWp]: Trace formula consists of 4127 conjuncts, 20 conjuncts are in the unsatisfiable core [2025-01-09 16:55:25,123 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 16:55:25,797 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 40 proven. 0 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2025-01-09 16:55:25,797 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 16:55:25,797 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1143750886] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 16:55:25,797 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-09 16:55:25,797 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [6] total 9 [2025-01-09 16:55:25,797 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [979183415] [2025-01-09 16:55:25,797 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 16:55:25,798 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-01-09 16:55:25,798 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 16:55:25,799 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-01-09 16:55:25,799 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2025-01-09 16:55:25,799 INFO L87 Difference]: Start difference. First operand 249 states and 340 transitions. Second operand has 7 states, 5 states have (on average 8.2) internal successors, (41), 6 states have internal predecessors, (41), 4 states have call successors, (16), 2 states have call predecessors, (16), 4 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) [2025-01-09 16:55:27,658 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 16:55:27,658 INFO L93 Difference]: Finished difference Result 450 states and 644 transitions. [2025-01-09 16:55:27,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-01-09 16:55:27,659 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 5 states have (on average 8.2) internal successors, (41), 6 states have internal predecessors, (41), 4 states have call successors, (16), 2 states have call predecessors, (16), 4 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) Word has length 87 [2025-01-09 16:55:27,659 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 16:55:27,667 INFO L225 Difference]: With dead ends: 450 [2025-01-09 16:55:27,667 INFO L226 Difference]: Without dead ends: 254 [2025-01-09 16:55:27,669 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 85 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2025-01-09 16:55:27,673 INFO L435 NwaCegarLoop]: 321 mSDtfsCounter, 1 mSDsluCounter, 1559 mSDsCounter, 0 mSdLazyCounter, 163 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 1880 SdHoareTripleChecker+Invalid, 165 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 163 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2025-01-09 16:55:27,673 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 1880 Invalid, 165 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 163 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2025-01-09 16:55:27,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 254 states. [2025-01-09 16:55:27,688 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 254 to 251. [2025-01-09 16:55:27,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 251 states, 141 states have (on average 1.177304964539007) internal successors, (166), 143 states have internal predecessors, (166), 88 states have call successors, (88), 20 states have call predecessors, (88), 21 states have return successors, (104), 87 states have call predecessors, (104), 87 states have call successors, (104) [2025-01-09 16:55:27,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 251 states to 251 states and 358 transitions. [2025-01-09 16:55:27,694 INFO L78 Accepts]: Start accepts. Automaton has 251 states and 358 transitions. Word has length 87 [2025-01-09 16:55:27,695 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 16:55:27,695 INFO L471 AbstractCegarLoop]: Abstraction has 251 states and 358 transitions. [2025-01-09 16:55:27,695 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 5 states have (on average 8.2) internal successors, (41), 6 states have internal predecessors, (41), 4 states have call successors, (16), 2 states have call predecessors, (16), 4 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) [2025-01-09 16:55:27,695 INFO L276 IsEmpty]: Start isEmpty. Operand 251 states and 358 transitions. [2025-01-09 16:55:27,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2025-01-09 16:55:27,698 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 16:55:27,699 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] [2025-01-09 16:55:27,726 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2025-01-09 16:55:27,902 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 [2025-01-09 16:55:27,902 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 16:55:27,903 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 16:55:27,903 INFO L85 PathProgramCache]: Analyzing trace with hash 2039878225, now seen corresponding path program 1 times [2025-01-09 16:55:27,903 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 16:55:27,903 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2107413313] [2025-01-09 16:55:27,903 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 16:55:27,903 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 16:55:31,581 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 102 statements into 1 equivalence classes. [2025-01-09 16:55:31,661 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 102 of 102 statements. [2025-01-09 16:55:31,664 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 16:55:31,664 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 16:55:33,038 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2025-01-09 16:55:33,038 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 16:55:33,038 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2107413313] [2025-01-09 16:55:33,038 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2107413313] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 16:55:33,038 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1996726492] [2025-01-09 16:55:33,038 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 16:55:33,039 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 16:55:33,039 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 16:55:33,042 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) [2025-01-09 16:55:33,044 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 [2025-01-09 16:55:37,273 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 102 statements into 1 equivalence classes. [2025-01-09 16:55:37,688 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 102 of 102 statements. [2025-01-09 16:55:37,689 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 16:55:37,689 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 16:55:37,708 INFO L256 TraceCheckSpWp]: Trace formula consists of 4260 conjuncts, 9 conjuncts are in the unsatisfiable core [2025-01-09 16:55:37,713 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 16:55:39,593 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 38 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2025-01-09 16:55:39,594 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 16:55:39,594 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1996726492] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 16:55:39,594 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-09 16:55:39,594 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [8] total 15 [2025-01-09 16:55:39,594 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [941650894] [2025-01-09 16:55:39,594 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 16:55:39,594 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-01-09 16:55:39,594 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 16:55:39,595 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-01-09 16:55:39,596 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=177, Unknown=0, NotChecked=0, Total=210 [2025-01-09 16:55:39,596 INFO L87 Difference]: Start difference. First operand 251 states and 358 transitions. Second operand has 9 states, 9 states have (on average 5.888888888888889) internal successors, (53), 8 states have internal predecessors, (53), 6 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (16), 6 states have call predecessors, (16), 6 states have call successors, (16) [2025-01-09 16:55:42,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 16:55:42,269 INFO L93 Difference]: Finished difference Result 304 states and 423 transitions. [2025-01-09 16:55:42,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-01-09 16:55:42,270 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.888888888888889) internal successors, (53), 8 states have internal predecessors, (53), 6 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (16), 6 states have call predecessors, (16), 6 states have call successors, (16) Word has length 102 [2025-01-09 16:55:42,270 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 16:55:42,271 INFO L225 Difference]: With dead ends: 304 [2025-01-09 16:55:42,271 INFO L226 Difference]: Without dead ends: 0 [2025-01-09 16:55:42,272 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 117 GetRequests, 97 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=74, Invalid=388, Unknown=0, NotChecked=0, Total=462 [2025-01-09 16:55:42,273 INFO L435 NwaCegarLoop]: 85 mSDtfsCounter, 119 mSDsluCounter, 478 mSDsCounter, 0 mSdLazyCounter, 147 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 119 SdHoareTripleChecker+Valid, 563 SdHoareTripleChecker+Invalid, 169 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 147 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2025-01-09 16:55:42,273 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [119 Valid, 563 Invalid, 169 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 147 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2025-01-09 16:55:42,274 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2025-01-09 16:55:42,274 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2025-01-09 16:55:42,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 16:55:42,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2025-01-09 16:55:42,274 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 102 [2025-01-09 16:55:42,274 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 16:55:42,275 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-01-09 16:55:42,275 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.888888888888889) internal successors, (53), 8 states have internal predecessors, (53), 6 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (16), 6 states have call predecessors, (16), 6 states have call successors, (16) [2025-01-09 16:55:42,275 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2025-01-09 16:55:42,275 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2025-01-09 16:55:42,277 INFO L782 garLoopResultBuilder]: Registering result SAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2025-01-09 16:55:42,299 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2025-01-09 16:55:42,478 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 16:55:42,480 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2025-01-09 16:55:42,482 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2025-01-09 16:55:47,606 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-01-09 16:55:47,610 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.01 04:55:47 BoogieIcfgContainer [2025-01-09 16:55:47,610 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-01-09 16:55:47,611 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-01-09 16:55:47,611 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-01-09 16:55:47,611 INFO L274 PluginConnector]: Witness Printer initialized [2025-01-09 16:55:47,612 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 04:55:03" (3/4) ... [2025-01-09 16:55:47,613 INFO L146 WitnessPrinter]: Generating witness for correct program [2025-01-09 16:55:47,622 INFO L362 RCFGBacktranslator]: Ignoring RootEdge to procedure bounded_malloc [2025-01-09 16:55:47,622 INFO L362 RCFGBacktranslator]: Ignoring RootEdge to procedure ensure_array_list_has_allocated_data_member [2025-01-09 16:55:47,622 INFO L362 RCFGBacktranslator]: Ignoring RootEdge to procedure my_memset [2025-01-09 16:55:47,622 INFO L362 RCFGBacktranslator]: Ignoring RootEdge to procedure memset_impl [2025-01-09 16:55:47,622 INFO L362 RCFGBacktranslator]: Ignoring RootEdge to procedure nondet_uint8_t [2025-01-09 16:55:47,622 INFO L362 RCFGBacktranslator]: Ignoring RootEdge to procedure aws_array_list_is_bounded [2025-01-09 16:55:47,622 INFO L362 RCFGBacktranslator]: Ignoring RootEdge to procedure aws_array_list_is_valid [2025-01-09 16:55:47,623 INFO L362 RCFGBacktranslator]: Ignoring RootEdge to procedure nondet_bool [2025-01-09 16:55:47,623 INFO L362 RCFGBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2025-01-09 16:55:47,623 INFO L362 RCFGBacktranslator]: Ignoring RootEdge to procedure aws_raise_error [2025-01-09 16:55:47,623 INFO L362 RCFGBacktranslator]: Ignoring RootEdge to procedure can_fail_allocator [2025-01-09 16:55:47,623 INFO L362 RCFGBacktranslator]: Ignoring RootEdge to procedure __CPROVER_overflow_mult [2025-01-09 16:55:47,623 INFO L362 RCFGBacktranslator]: Ignoring RootEdge to procedure assert_byte_from_buffer_matches [2025-01-09 16:55:47,623 INFO L362 RCFGBacktranslator]: Ignoring RootEdge to procedure nondet_size_t [2025-01-09 16:55:47,623 INFO L362 RCFGBacktranslator]: Ignoring RootEdge to procedure my_memmove [2025-01-09 16:55:47,623 INFO L362 RCFGBacktranslator]: Ignoring RootEdge to procedure memmove_impl [2025-01-09 16:55:47,623 INFO L362 RCFGBacktranslator]: Ignoring RootEdge to procedure aws_mul_size_checked [2025-01-09 16:55:47,623 INFO L362 RCFGBacktranslator]: Ignoring RootEdge to procedure aws_array_list_length [2025-01-09 16:55:47,623 INFO L362 RCFGBacktranslator]: Ignoring RootEdge to procedure aws_array_list_pop_back [2025-01-09 16:55:47,623 INFO L362 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2025-01-09 16:55:47,634 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 147 nodes and edges [2025-01-09 16:55:47,635 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 65 nodes and edges [2025-01-09 16:55:47,636 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 25 nodes and edges [2025-01-09 16:55:47,636 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2025-01-09 16:55:47,637 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2025-01-09 16:55:47,638 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2025-01-09 16:55:47,639 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2025-01-09 16:55:47,639 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2025-01-09 16:55:48,091 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-01-09 16:55:48,091 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.yml [2025-01-09 16:55:48,092 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-01-09 16:55:48,093 INFO L158 Benchmark]: Toolchain (without parser) took 52564.67ms. Allocated memory was 142.6MB in the beginning and 3.4GB in the end (delta: 3.3GB). Free memory was 101.2MB in the beginning and 2.0GB in the end (delta: -1.9GB). Peak memory consumption was 1.4GB. Max. memory is 16.1GB. [2025-01-09 16:55:48,093 INFO L158 Benchmark]: CDTParser took 0.23ms. Allocated memory is still 226.5MB. Free memory is still 148.9MB. There was no memory consumed. Max. memory is 16.1GB. [2025-01-09 16:55:48,093 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1559.11ms. Allocated memory is still 142.6MB. Free memory was 100.2MB in the beginning and 68.8MB in the end (delta: 31.3MB). Peak memory consumption was 95.6MB. Max. memory is 16.1GB. [2025-01-09 16:55:48,096 INFO L158 Benchmark]: Boogie Procedure Inliner took 124.51ms. Allocated memory is still 142.6MB. Free memory was 68.8MB in the beginning and 59.7MB in the end (delta: 9.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-01-09 16:55:48,097 INFO L158 Benchmark]: Boogie Preprocessor took 142.70ms. Allocated memory was 142.6MB in the beginning and 411.0MB in the end (delta: 268.4MB). Free memory was 59.7MB in the beginning and 355.5MB in the end (delta: -295.8MB). Peak memory consumption was 24.5MB. Max. memory is 16.1GB. [2025-01-09 16:55:48,097 INFO L158 Benchmark]: RCFGBuilder took 6507.60ms. Allocated memory is still 411.0MB. Free memory was 355.5MB in the beginning and 152.6MB in the end (delta: 202.9MB). Peak memory consumption was 201.3MB. Max. memory is 16.1GB. [2025-01-09 16:55:48,097 INFO L158 Benchmark]: TraceAbstraction took 43745.21ms. Allocated memory was 411.0MB in the beginning and 3.4GB in the end (delta: 3.0GB). Free memory was 152.6MB in the beginning and 2.2GB in the end (delta: -2.0GB). Peak memory consumption was 1.0GB. Max. memory is 16.1GB. [2025-01-09 16:55:48,097 INFO L158 Benchmark]: Witness Printer took 480.60ms. Allocated memory is still 3.4GB. Free memory was 2.2GB in the beginning and 2.0GB in the end (delta: 134.0MB). Peak memory consumption was 125.8MB. Max. memory is 16.1GB. [2025-01-09 16:55:48,098 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23ms. Allocated memory is still 226.5MB. Free memory is still 148.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1559.11ms. Allocated memory is still 142.6MB. Free memory was 100.2MB in the beginning and 68.8MB in the end (delta: 31.3MB). Peak memory consumption was 95.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 124.51ms. Allocated memory is still 142.6MB. Free memory was 68.8MB in the beginning and 59.7MB in the end (delta: 9.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 142.70ms. Allocated memory was 142.6MB in the beginning and 411.0MB in the end (delta: 268.4MB). Free memory was 59.7MB in the beginning and 355.5MB in the end (delta: -295.8MB). Peak memory consumption was 24.5MB. Max. memory is 16.1GB. * RCFGBuilder took 6507.60ms. Allocated memory is still 411.0MB. Free memory was 355.5MB in the beginning and 152.6MB in the end (delta: 202.9MB). Peak memory consumption was 201.3MB. Max. memory is 16.1GB. * TraceAbstraction took 43745.21ms. Allocated memory was 411.0MB in the beginning and 3.4GB in the end (delta: 3.0GB). Free memory was 152.6MB in the beginning and 2.2GB in the end (delta: -2.0GB). Peak memory consumption was 1.0GB. Max. memory is 16.1GB. * Witness Printer took 480.60ms. Allocated memory is still 3.4GB. Free memory was 2.2GB in the beginning and 2.0GB in the end (delta: 134.0MB). Peak memory consumption was 125.8MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 7825]: Unsoundness Warning Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [7825-7836] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 223]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 21 procedures, 254 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 38.6s, OverallIterations: 3, TraceHistogramMax: 6, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 4.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 121 SdHoareTripleChecker+Valid, 3.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 120 mSDsluCounter, 2788 SdHoareTripleChecker+Invalid, 3.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2037 mSDsCounter, 24 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 310 IncrementalHoareTripleChecker+Invalid, 334 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 24 mSolverCounterUnsat, 751 mSDtfsCounter, 310 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 298 GetRequests, 270 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 3.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=254occurred in iteration=0, InterpolantAutomatonStates: 20, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 3 MinimizatonAttempts, 3 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.4s SsaConstructionTime, 1.9s SatisfiabilityAnalysisTime, 6.4s InterpolantComputationTime, 552 NumberOfCodeBlocks, 552 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 546 ConstructedInterpolants, 0 QuantifiedInterpolants, 728 SizeOfPredicates, 5 NumberOfNonLiveVariables, 12514 ConjunctsInSsa, 30 ConjunctsInUnsatCore, 6 InterpolantComputations, 3 PerfectInterpolantSequences, 481/504 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2025-01-09 16:55:48,256 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE