./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 e2fb8bed Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/aws-c-common/aws_array_list_erase_harness.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/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-?-e2fb8be-m [2025-03-08 17:44:04,283 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-08 17:44:04,338 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2025-03-08 17:44:04,342 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-08 17:44:04,343 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-08 17:44:04,359 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-08 17:44:04,359 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-08 17:44:04,359 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-08 17:44:04,360 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-08 17:44:04,360 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-08 17:44:04,360 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-08 17:44:04,360 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-08 17:44:04,360 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-08 17:44:04,360 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-08 17:44:04,360 INFO L153 SettingsManager]: * Use SBE=true [2025-03-08 17:44:04,360 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-08 17:44:04,360 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-08 17:44:04,360 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-08 17:44:04,360 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-08 17:44:04,362 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-08 17:44:04,362 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-08 17:44:04,362 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-08 17:44:04,362 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-08 17:44:04,362 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-08 17:44:04,362 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-08 17:44:04,362 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-08 17:44:04,362 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-08 17:44:04,362 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-08 17:44:04,363 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-08 17:44:04,363 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-08 17:44:04,363 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-08 17:44:04,363 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-08 17:44:04,363 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-08 17:44:04,363 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-08 17:44:04,363 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-08 17:44:04,363 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-08 17:44:04,363 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-08 17:44:04,364 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-08 17:44:04,364 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-08 17:44:04,364 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-08 17:44:04,364 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/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 [2025-03-08 17:44:04,579 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-08 17:44:04,584 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-08 17:44:04,586 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-08 17:44:04,586 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-08 17:44:04,587 INFO L274 PluginConnector]: CDTParser initialized [2025-03-08 17:44:04,588 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_array_list_erase_harness.i [2025-03-08 17:44:05,708 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1a8d1f187/0df8ba9dc5b3425eaae1979b58eae100/FLAGa610091ca [2025-03-08 17:44:06,172 INFO L384 CDTParser]: Found 1 translation units. [2025-03-08 17:44:06,173 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_array_list_erase_harness.i [2025-03-08 17:44:06,203 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1a8d1f187/0df8ba9dc5b3425eaae1979b58eae100/FLAGa610091ca [2025-03-08 17:44:06,263 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1a8d1f187/0df8ba9dc5b3425eaae1979b58eae100 [2025-03-08 17:44:06,265 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-08 17:44:06,266 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-08 17:44:06,267 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-08 17:44:06,267 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-08 17:44:06,270 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-08 17:44:06,271 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.03 05:44:06" (1/1) ... [2025-03-08 17:44:06,272 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@14a36679 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:44:06, skipping insertion in model container [2025-03-08 17:44:06,273 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.03 05:44:06" (1/1) ... [2025-03-08 17:44:06,330 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-08 17:44:06,504 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_array_list_erase_harness.i[4494,4507] [2025-03-08 17:44:06,513 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_array_list_erase_harness.i[4554,4567] [2025-03-08 17:44:07,062 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:44:07,065 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:44:07,066 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:44:07,066 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:44:07,067 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:44:07,080 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:44:07,083 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:44:07,084 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:44:07,085 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:44:07,086 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:44:07,086 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:44:07,087 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:44:07,087 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:44:07,402 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:44:07,402 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:44:07,408 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:44:07,409 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:44:07,413 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:44:07,413 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:44:07,417 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:44:07,420 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:44:07,463 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:44:07,464 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:44:07,466 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-08 17:44:07,486 INFO L200 MainTranslator]: Completed pre-run [2025-03-08 17:44:07,501 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_array_list_erase_harness.i[4494,4507] [2025-03-08 17:44:07,502 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_array_list_erase_harness.i[4554,4567] [2025-03-08 17:44:07,547 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:44:07,547 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:44:07,547 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:44:07,548 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:44:07,548 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:44:07,553 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:44:07,554 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:44:07,554 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:44:07,555 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:44:07,555 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:44:07,556 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:44:07,556 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:44:07,556 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:44:07,648 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:44:07,648 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:44:07,650 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:44:07,650 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:44:07,651 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:44:07,651 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:44:07,652 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:44:07,654 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:44:07,660 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [7825-7836] [2025-03-08 17:44:07,674 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:44:07,674 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:44:07,675 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-08 17:44:07,826 INFO L204 MainTranslator]: Completed translation [2025-03-08 17:44:07,827 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:44:07 WrapperNode [2025-03-08 17:44:07,827 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-08 17:44:07,828 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-08 17:44:07,828 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-08 17:44:07,829 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-08 17:44:07,833 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:44:07" (1/1) ... [2025-03-08 17:44:07,884 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:44:07" (1/1) ... [2025-03-08 17:44:07,936 INFO L138 Inliner]: procedures = 678, calls = 1677, calls flagged for inlining = 52, calls inlined = 11, statements flattened = 734 [2025-03-08 17:44:07,936 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-08 17:44:07,937 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-08 17:44:07,937 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-08 17:44:07,937 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-08 17:44:07,943 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:44:07" (1/1) ... [2025-03-08 17:44:07,944 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:44:07" (1/1) ... [2025-03-08 17:44:07,954 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:44:07" (1/1) ... [2025-03-08 17:44:08,016 INFO L175 MemorySlicer]: Split 331 memory accesses to 6 slices as follows [238, 2, 6, 3, 9, 73]. 72 percent of accesses are in the largest equivalence class. The 24 initializations are split as follows [6, 2, 0, 1, 5, 10]. The 243 writes are split as follows [232, 0, 2, 1, 2, 6]. [2025-03-08 17:44:08,017 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:44:07" (1/1) ... [2025-03-08 17:44:08,017 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:44:07" (1/1) ... [2025-03-08 17:44:08,036 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:44:07" (1/1) ... [2025-03-08 17:44:08,038 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:44:07" (1/1) ... [2025-03-08 17:44:08,043 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:44:07" (1/1) ... [2025-03-08 17:44:08,048 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:44:07" (1/1) ... [2025-03-08 17:44:08,058 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-08 17:44:08,058 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-08 17:44:08,058 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-08 17:44:08,058 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-08 17:44:08,061 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:44:07" (1/1) ... [2025-03-08 17:44:08,064 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-08 17:44:08,073 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 17:44:08,087 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-03-08 17:44:08,109 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-03-08 17:44:08,123 INFO L130 BoogieDeclarations]: Found specification of procedure memmove_impl [2025-03-08 17:44:08,123 INFO L138 BoogieDeclarations]: Found implementation of procedure memmove_impl [2025-03-08 17:44:08,123 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-03-08 17:44:08,123 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_bounded [2025-03-08 17:44:08,124 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_bounded [2025-03-08 17:44:08,124 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_valid [2025-03-08 17:44:08,124 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_valid [2025-03-08 17:44:08,124 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2025-03-08 17:44:08,124 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2025-03-08 17:44:08,124 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2025-03-08 17:44:08,124 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2025-03-08 17:44:08,124 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2025-03-08 17:44:08,124 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2025-03-08 17:44:08,124 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2025-03-08 17:44:08,124 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2025-03-08 17:44:08,125 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-03-08 17:44:08,125 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-03-08 17:44:08,125 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2025-03-08 17:44:08,125 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2025-03-08 17:44:08,125 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2025-03-08 17:44:08,125 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2025-03-08 17:44:08,125 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2025-03-08 17:44:08,126 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2025-03-08 17:44:08,126 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2025-03-08 17:44:08,126 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2025-03-08 17:44:08,126 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-03-08 17:44:08,126 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-08 17:44:08,126 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint8_t [2025-03-08 17:44:08,126 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint8_t [2025-03-08 17:44:08,126 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2025-03-08 17:44:08,126 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2025-03-08 17:44:08,126 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2025-03-08 17:44:08,126 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2025-03-08 17:44:08,126 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2025-03-08 17:44:08,126 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2025-03-08 17:44:08,126 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-08 17:44:08,126 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-08 17:44:08,126 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2025-03-08 17:44:08,126 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2025-03-08 17:44:08,126 INFO L130 BoogieDeclarations]: Found specification of procedure assert_byte_from_buffer_matches [2025-03-08 17:44:08,126 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_byte_from_buffer_matches [2025-03-08 17:44:08,126 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_size_t [2025-03-08 17:44:08,126 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_size_t [2025-03-08 17:44:08,127 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2025-03-08 17:44:08,127 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2025-03-08 17:44:08,127 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2025-03-08 17:44:08,127 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2025-03-08 17:44:08,127 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2025-03-08 17:44:08,127 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2025-03-08 17:44:08,127 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2025-03-08 17:44:08,127 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2025-03-08 17:44:08,127 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_length [2025-03-08 17:44:08,127 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_length [2025-03-08 17:44:08,127 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2025-03-08 17:44:08,127 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2025-03-08 17:44:08,127 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_pop_back [2025-03-08 17:44:08,127 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_pop_back [2025-03-08 17:44:08,127 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-03-08 17:44:08,127 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2025-03-08 17:44:08,127 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2025-03-08 17:44:08,127 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2025-03-08 17:44:08,127 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2025-03-08 17:44:08,127 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2025-03-08 17:44:08,127 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2025-03-08 17:44:08,127 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2025-03-08 17:44:08,127 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2025-03-08 17:44:08,127 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2025-03-08 17:44:08,127 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2025-03-08 17:44:08,127 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2025-03-08 17:44:08,127 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2025-03-08 17:44:08,127 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2025-03-08 17:44:08,127 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2025-03-08 17:44:08,127 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2025-03-08 17:44:08,127 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2025-03-08 17:44:08,127 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-03-08 17:44:08,127 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-03-08 17:44:08,127 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2025-03-08 17:44:08,127 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2025-03-08 17:44:08,127 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2025-03-08 17:44:08,127 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2025-03-08 17:44:08,127 INFO L130 BoogieDeclarations]: Found specification of procedure my_memmove [2025-03-08 17:44:08,127 INFO L138 BoogieDeclarations]: Found implementation of procedure my_memmove [2025-03-08 17:44:08,127 INFO L130 BoogieDeclarations]: Found specification of procedure memset_impl [2025-03-08 17:44:08,127 INFO L138 BoogieDeclarations]: Found implementation of procedure memset_impl [2025-03-08 17:44:08,127 INFO L130 BoogieDeclarations]: Found specification of procedure my_memset [2025-03-08 17:44:08,127 INFO L138 BoogieDeclarations]: Found implementation of procedure my_memset [2025-03-08 17:44:08,127 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_array_list_has_allocated_data_member [2025-03-08 17:44:08,127 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_array_list_has_allocated_data_member [2025-03-08 17:44:08,127 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-08 17:44:08,128 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-03-08 17:44:08,128 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-03-08 17:44:08,128 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2025-03-08 17:44:08,128 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2025-03-08 17:44:08,128 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2025-03-08 17:44:08,378 INFO L256 CfgBuilder]: Building ICFG [2025-03-08 17:44:08,380 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-08 17:44:08,407 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L2782: havoc #t~malloc77.base, #t~malloc77.offset; [2025-03-08 17:44:08,408 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L267: havoc #t~nondet10; [2025-03-08 17:44:08,421 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L263: havoc #t~nondet6; [2025-03-08 17:44:08,438 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L2588: havoc #t~ret57#1; [2025-03-08 17:44:08,447 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L7446: havoc #t~ret688.base, #t~ret688.offset; [2025-03-08 17:44:08,535 INFO L1307 $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; [2025-03-08 17:44:08,538 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L261: havoc #t~nondet4; [2025-03-08 17:44:08,545 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L7393: havoc #t~ret682.base, #t~ret682.offset; [2025-03-08 17:44:14,900 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L3355: havoc aws_array_list_pop_front_#t~ret182#1; [2025-03-08 17:44:14,901 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L3387: havoc aws_array_list_erase_#t~ret196#1; [2025-03-08 17:44:15,148 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L3445: havoc #t~ret230; [2025-03-08 17:44:15,148 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L3432: havoc ~last_item_offset~1; [2025-03-08 17:44:15,219 INFO L? ?]: Removed 142 outVars from TransFormulas that were not future-live. [2025-03-08 17:44:15,219 INFO L307 CfgBuilder]: Performing block encoding [2025-03-08 17:44:15,233 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-08 17:44:15,233 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-08 17:44:15,233 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.03 05:44:15 BoogieIcfgContainer [2025-03-08 17:44:15,233 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-08 17:44:15,235 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-08 17:44:15,235 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-08 17:44:15,240 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-08 17:44:15,240 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.03 05:44:06" (1/3) ... [2025-03-08 17:44:15,240 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1133c4fc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.03 05:44:15, skipping insertion in model container [2025-03-08 17:44:15,241 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:44:07" (2/3) ... [2025-03-08 17:44:15,241 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1133c4fc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.03 05:44:15, skipping insertion in model container [2025-03-08 17:44:15,241 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.03 05:44:15" (3/3) ... [2025-03-08 17:44:15,242 INFO L128 eAbstractionObserver]: Analyzing ICFG aws_array_list_erase_harness.i [2025-03-08 17:44:15,253 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-08 17:44:15,254 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. [2025-03-08 17:44:15,300 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-08 17:44:15,310 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;@7d6a7e8b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-08 17:44:15,311 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-03-08 17:44:15,314 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) [2025-03-08 17:44:15,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2025-03-08 17:44:15,323 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 17:44:15,323 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] [2025-03-08 17:44:15,324 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 17:44:15,327 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 17:44:15,328 INFO L85 PathProgramCache]: Analyzing trace with hash -453061669, now seen corresponding path program 1 times [2025-03-08 17:44:15,333 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 17:44:15,333 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1330745881] [2025-03-08 17:44:15,333 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 17:44:15,334 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 17:44:19,475 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 87 statements into 1 equivalence classes. [2025-03-08 17:44:19,725 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 87 of 87 statements. [2025-03-08 17:44:19,725 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 17:44:19,725 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 17:44:20,091 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 74 trivial. 0 not checked. [2025-03-08 17:44:20,092 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 17:44:20,092 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1330745881] [2025-03-08 17:44:20,093 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1330745881] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-08 17:44:20,093 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1326102417] [2025-03-08 17:44:20,095 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 17:44:20,095 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 17:44:20,095 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 17:44:20,097 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-08 17:44:20,099 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-03-08 17:44:24,138 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 87 statements into 1 equivalence classes. [2025-03-08 17:44:24,540 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 87 of 87 statements. [2025-03-08 17:44:24,540 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 17:44:24,540 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 17:44:24,558 INFO L256 TraceCheckSpWp]: Trace formula consists of 4132 conjuncts, 1 conjuncts are in the unsatisfiable core [2025-03-08 17:44:24,567 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-08 17:44:24,582 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 74 trivial. 0 not checked. [2025-03-08 17:44:24,582 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-08 17:44:24,583 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1326102417] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 17:44:24,583 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-08 17:44:24,583 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2025-03-08 17:44:24,584 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [686348465] [2025-03-08 17:44:24,585 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 17:44:24,587 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-03-08 17:44:24,587 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 17:44:24,600 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-03-08 17:44:24,600 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-03-08 17:44:24,602 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) [2025-03-08 17:44:24,639 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 17:44:24,639 INFO L93 Difference]: Finished difference Result 499 states and 739 transitions. [2025-03-08 17:44:24,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-08 17:44:24,641 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 [2025-03-08 17:44:24,641 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 17:44:24,646 INFO L225 Difference]: With dead ends: 499 [2025-03-08 17:44:24,647 INFO L226 Difference]: Without dead ends: 249 [2025-03-08 17:44:24,650 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 [2025-03-08 17:44:24,652 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 [2025-03-08 17:44:24,652 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] [2025-03-08 17:44:24,661 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 249 states. [2025-03-08 17:44:24,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 249 to 249. [2025-03-08 17:44:24,685 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) [2025-03-08 17:44:24,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 249 states to 249 states and 340 transitions. [2025-03-08 17:44:24,691 INFO L78 Accepts]: Start accepts. Automaton has 249 states and 340 transitions. Word has length 87 [2025-03-08 17:44:24,692 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 17:44:24,692 INFO L471 AbstractCegarLoop]: Abstraction has 249 states and 340 transitions. [2025-03-08 17:44:24,692 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) [2025-03-08 17:44:24,692 INFO L276 IsEmpty]: Start isEmpty. Operand 249 states and 340 transitions. [2025-03-08 17:44:24,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2025-03-08 17:44:24,694 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 17:44:24,694 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] [2025-03-08 17:44:24,709 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2025-03-08 17:44:24,895 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2025-03-08 17:44:24,895 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 17:44:24,896 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 17:44:24,896 INFO L85 PathProgramCache]: Analyzing trace with hash -1616597031, now seen corresponding path program 1 times [2025-03-08 17:44:24,896 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 17:44:24,896 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [582238137] [2025-03-08 17:44:24,896 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 17:44:24,896 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 17:44:28,580 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 87 statements into 1 equivalence classes. [2025-03-08 17:44:28,753 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 87 of 87 statements. [2025-03-08 17:44:28,754 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 17:44:28,754 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 17:44:31,015 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 11 proven. 10 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2025-03-08 17:44:31,016 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 17:44:31,016 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [582238137] [2025-03-08 17:44:31,016 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [582238137] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-08 17:44:31,016 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1260071315] [2025-03-08 17:44:31,016 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 17:44:31,016 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 17:44:31,016 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 17:44:31,018 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-08 17:44:31,020 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-03-08 17:44:34,981 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 87 statements into 1 equivalence classes. [2025-03-08 17:44:35,381 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 87 of 87 statements. [2025-03-08 17:44:35,382 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 17:44:35,382 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 17:44:35,401 INFO L256 TraceCheckSpWp]: Trace formula consists of 4132 conjuncts, 57 conjuncts are in the unsatisfiable core [2025-03-08 17:44:35,411 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-08 17:44:38,076 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 [2025-03-08 17:44:38,177 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-08 17:44:38,182 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 [2025-03-08 17:44:38,230 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-08 17:44:38,231 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 [2025-03-08 17:44:41,835 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 47 proven. 16 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2025-03-08 17:44:41,835 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-08 17:44:47,906 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1260071315] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-08 17:44:47,906 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-03-08 17:44:47,906 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 13] total 16 [2025-03-08 17:44:47,907 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1858123318] [2025-03-08 17:44:47,907 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-03-08 17:44:47,907 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2025-03-08 17:44:47,907 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 17:44:47,908 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2025-03-08 17:44:47,909 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=536, Unknown=1, NotChecked=46, Total=650 [2025-03-08 17:44:47,909 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) [2025-03-08 17:45:32,346 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 17:45:32,346 INFO L93 Difference]: Finished difference Result 680 states and 975 transitions. [2025-03-08 17:45:32,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2025-03-08 17:45:32,347 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 [2025-03-08 17:45:32,347 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 17:45:32,354 INFO L225 Difference]: With dead ends: 680 [2025-03-08 17:45:32,354 INFO L226 Difference]: Without dead ends: 480 [2025-03-08 17:45:32,356 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 166 GetRequests, 114 SyntacticMatches, 15 SemanticMatches, 37 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 220 ImplicationChecksByTransitivity, 10.7s TimeCoverageRelationStatistics Valid=174, Invalid=1235, Unknown=1, NotChecked=72, Total=1482 [2025-03-08 17:45:32,356 INFO L435 NwaCegarLoop]: 305 mSDtfsCounter, 382 mSDsluCounter, 2019 mSDsCounter, 0 mSdLazyCounter, 4031 mSolverCounterSat, 356 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 39.6s 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, 40.4s IncrementalHoareTripleChecker+Time [2025-03-08 17:45:32,356 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [428 Valid, 2324 Invalid, 5112 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [356 Valid, 4031 Invalid, 5 Unknown, 720 Unchecked, 40.4s Time] [2025-03-08 17:45:32,357 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 480 states. [2025-03-08 17:45:32,410 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 480 to 476. [2025-03-08 17:45:32,411 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) [2025-03-08 17:45:32,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 476 states to 476 states and 688 transitions. [2025-03-08 17:45:32,415 INFO L78 Accepts]: Start accepts. Automaton has 476 states and 688 transitions. Word has length 87 [2025-03-08 17:45:32,416 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 17:45:32,416 INFO L471 AbstractCegarLoop]: Abstraction has 476 states and 688 transitions. [2025-03-08 17:45:32,416 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) [2025-03-08 17:45:32,416 INFO L276 IsEmpty]: Start isEmpty. Operand 476 states and 688 transitions. [2025-03-08 17:45:32,418 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2025-03-08 17:45:32,418 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 17:45:32,418 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] [2025-03-08 17:45:32,435 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2025-03-08 17:45:32,619 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2025-03-08 17:45:32,619 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 17:45:32,619 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 17:45:32,620 INFO L85 PathProgramCache]: Analyzing trace with hash -1346536218, now seen corresponding path program 1 times [2025-03-08 17:45:32,620 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 17:45:32,620 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [665364414] [2025-03-08 17:45:32,620 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 17:45:32,620 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 17:45:36,234 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 102 statements into 1 equivalence classes. [2025-03-08 17:45:36,330 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 102 of 102 statements. [2025-03-08 17:45:36,331 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 17:45:36,331 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 17:45:37,386 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2025-03-08 17:45:37,387 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 17:45:37,387 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [665364414] [2025-03-08 17:45:37,387 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [665364414] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-08 17:45:37,387 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1184576395] [2025-03-08 17:45:37,387 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 17:45:37,387 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 17:45:37,387 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 17:45:37,389 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-08 17:45:37,390 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2025-03-08 17:45:41,236 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 102 statements into 1 equivalence classes. [2025-03-08 17:45:41,588 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 102 of 102 statements. [2025-03-08 17:45:41,588 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 17:45:41,588 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 17:45:41,608 INFO L256 TraceCheckSpWp]: Trace formula consists of 4260 conjuncts, 7 conjuncts are in the unsatisfiable core [2025-03-08 17:45:41,613 INFO L279 TraceCheckSpWp]: Computing forward predicates...