./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/aws-c-common/aws_array_list_erase_harness_negated.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8fc3dc66 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_negated.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 5aa4df3bf07993e90fd6085d301926d2fe237de2ffd3a09881087885f4330551 --- Real Ultimate output --- This is Ultimate 0.3.0-?-8fc3dc6-m [2025-03-17 06:52:24,566 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-17 06:52:24,625 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2025-03-17 06:52:24,630 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-17 06:52:24,631 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-17 06:52:24,652 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-17 06:52:24,654 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-17 06:52:24,654 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-17 06:52:24,654 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-17 06:52:24,655 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-17 06:52:24,655 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-17 06:52:24,656 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-17 06:52:24,656 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-17 06:52:24,656 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-17 06:52:24,656 INFO L153 SettingsManager]: * Use SBE=true [2025-03-17 06:52:24,657 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-17 06:52:24,657 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-17 06:52:24,657 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-17 06:52:24,657 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-17 06:52:24,657 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-17 06:52:24,657 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-17 06:52:24,657 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-17 06:52:24,657 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-17 06:52:24,658 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-17 06:52:24,658 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-17 06:52:24,658 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-17 06:52:24,658 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-17 06:52:24,658 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-17 06:52:24,658 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-17 06:52:24,658 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-17 06:52:24,659 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-17 06:52:24,659 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-17 06:52:24,659 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-17 06:52:24,659 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-17 06:52:24,659 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-17 06:52:24,659 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-17 06:52:24,659 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-17 06:52:24,659 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-17 06:52:24,659 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-17 06:52:24,660 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-17 06:52:24,660 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 -> 5aa4df3bf07993e90fd6085d301926d2fe237de2ffd3a09881087885f4330551 [2025-03-17 06:52:24,886 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-17 06:52:24,894 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-17 06:52:24,896 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-17 06:52:24,897 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-17 06:52:24,897 INFO L274 PluginConnector]: CDTParser initialized [2025-03-17 06:52:24,901 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_array_list_erase_harness_negated.i [2025-03-17 06:52:26,089 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9b276f747/32d7c434dbd04bd2a6691b4c93f33343/FLAGe6fab62b8 [2025-03-17 06:52:26,644 INFO L384 CDTParser]: Found 1 translation units. [2025-03-17 06:52:26,647 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_array_list_erase_harness_negated.i [2025-03-17 06:52:26,687 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9b276f747/32d7c434dbd04bd2a6691b4c93f33343/FLAGe6fab62b8 [2025-03-17 06:52:26,701 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9b276f747/32d7c434dbd04bd2a6691b4c93f33343 [2025-03-17 06:52:26,703 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-17 06:52:26,705 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-17 06:52:26,706 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-17 06:52:26,706 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-17 06:52:26,709 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-17 06:52:26,710 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.03 06:52:26" (1/1) ... [2025-03-17 06:52:26,711 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3b6fd936 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 06:52:26, skipping insertion in model container [2025-03-17 06:52:26,711 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.03 06:52:26" (1/1) ... [2025-03-17 06:52:26,772 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-17 06:52:27,025 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_negated.i[4494,4507] [2025-03-17 06:52:27,035 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_negated.i[4554,4567] [2025-03-17 06:52:27,759 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 06:52:27,760 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 06:52:27,760 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 06:52:27,761 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 06:52:27,761 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 06:52:27,769 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 06:52:27,770 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 06:52:27,773 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 06:52:27,773 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 06:52:27,775 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 06:52:27,775 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 06:52:27,776 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 06:52:27,776 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 06:52:28,092 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 06:52:28,092 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 06:52:28,102 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 06:52:28,102 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 06:52:28,110 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 06:52:28,110 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 06:52:28,118 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 06:52:28,122 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 06:52:28,164 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 06:52:28,165 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 06:52:28,169 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-17 06:52:28,193 INFO L200 MainTranslator]: Completed pre-run [2025-03-17 06:52:28,207 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_negated.i[4494,4507] [2025-03-17 06:52:28,208 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_negated.i[4554,4567] [2025-03-17 06:52:28,269 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 06:52:28,270 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 06:52:28,270 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 06:52:28,270 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 06:52:28,271 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 06:52:28,277 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 06:52:28,277 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 06:52:28,278 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 06:52:28,278 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 06:52:28,279 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 06:52:28,283 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 06:52:28,283 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 06:52:28,284 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 06:52:28,404 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 06:52:28,408 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 06:52:28,409 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 06:52:28,410 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 06:52:28,411 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 06:52:28,411 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 06:52:28,412 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 06:52:28,415 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 06:52:28,424 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [7793-7804] [2025-03-17 06:52:28,442 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 06:52:28,446 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 06:52:28,446 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-17 06:52:28,627 INFO L204 MainTranslator]: Completed translation [2025-03-17 06:52:28,628 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 06:52:28 WrapperNode [2025-03-17 06:52:28,629 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-17 06:52:28,630 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-17 06:52:28,630 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-17 06:52:28,630 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-17 06:52:28,635 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 06:52:28" (1/1) ... [2025-03-17 06:52:28,695 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 06:52:28" (1/1) ... [2025-03-17 06:52:28,753 INFO L138 Inliner]: procedures = 678, calls = 1677, calls flagged for inlining = 52, calls inlined = 11, statements flattened = 734 [2025-03-17 06:52:28,754 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-17 06:52:28,754 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-17 06:52:28,754 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-17 06:52:28,755 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-17 06:52:28,765 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 06:52:28" (1/1) ... [2025-03-17 06:52:28,766 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 06:52:28" (1/1) ... [2025-03-17 06:52:28,775 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 06:52:28" (1/1) ... [2025-03-17 06:52:28,838 INFO L175 MemorySlicer]: Split 331 memory accesses to 6 slices as follows [238, 2, 73, 3, 6, 9]. 72 percent of accesses are in the largest equivalence class. The 24 initializations are split as follows [6, 2, 10, 1, 0, 5]. The 243 writes are split as follows [232, 0, 6, 1, 2, 2]. [2025-03-17 06:52:28,838 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 06:52:28" (1/1) ... [2025-03-17 06:52:28,839 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 06:52:28" (1/1) ... [2025-03-17 06:52:28,882 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 06:52:28" (1/1) ... [2025-03-17 06:52:28,887 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 06:52:28" (1/1) ... [2025-03-17 06:52:28,893 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 06:52:28" (1/1) ... [2025-03-17 06:52:28,897 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 06:52:28" (1/1) ... [2025-03-17 06:52:28,907 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-17 06:52:28,908 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-17 06:52:28,908 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-17 06:52:28,908 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-17 06:52:28,909 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 06:52:28" (1/1) ... [2025-03-17 06:52:28,915 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-17 06:52:28,927 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 06:52:28,953 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) [2025-03-17 06:52:28,956 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 [2025-03-17 06:52:28,977 INFO L130 BoogieDeclarations]: Found specification of procedure memmove_impl [2025-03-17 06:52:28,977 INFO L138 BoogieDeclarations]: Found implementation of procedure memmove_impl [2025-03-17 06:52:28,977 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-03-17 06:52:28,977 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_bounded [2025-03-17 06:52:28,977 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_bounded [2025-03-17 06:52:28,978 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_valid [2025-03-17 06:52:28,978 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_valid [2025-03-17 06:52:28,978 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2025-03-17 06:52:28,978 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2025-03-17 06:52:28,978 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2025-03-17 06:52:28,978 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2025-03-17 06:52:28,978 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2025-03-17 06:52:28,978 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2025-03-17 06:52:28,978 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2025-03-17 06:52:28,978 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2025-03-17 06:52:28,978 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-03-17 06:52:28,978 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-03-17 06:52:28,978 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2025-03-17 06:52:28,978 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2025-03-17 06:52:28,978 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2025-03-17 06:52:28,978 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2025-03-17 06:52:28,978 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2025-03-17 06:52:28,978 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2025-03-17 06:52:28,978 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2025-03-17 06:52:28,978 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2025-03-17 06:52:28,978 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-03-17 06:52:28,978 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-17 06:52:28,978 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint8_t [2025-03-17 06:52:28,978 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint8_t [2025-03-17 06:52:28,978 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2025-03-17 06:52:28,978 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2025-03-17 06:52:28,978 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2025-03-17 06:52:28,978 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2025-03-17 06:52:28,978 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2025-03-17 06:52:28,978 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2025-03-17 06:52:28,978 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-17 06:52:28,978 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-17 06:52:28,978 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2025-03-17 06:52:28,978 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2025-03-17 06:52:28,978 INFO L130 BoogieDeclarations]: Found specification of procedure assert_byte_from_buffer_matches [2025-03-17 06:52:28,978 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_byte_from_buffer_matches [2025-03-17 06:52:28,978 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_size_t [2025-03-17 06:52:28,979 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_size_t [2025-03-17 06:52:28,979 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2025-03-17 06:52:28,979 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2025-03-17 06:52:28,979 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2025-03-17 06:52:28,979 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2025-03-17 06:52:28,979 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2025-03-17 06:52:28,979 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2025-03-17 06:52:28,979 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2025-03-17 06:52:28,979 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2025-03-17 06:52:28,979 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_length [2025-03-17 06:52:28,979 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_length [2025-03-17 06:52:28,979 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2025-03-17 06:52:28,979 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2025-03-17 06:52:28,979 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_pop_back [2025-03-17 06:52:28,979 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_pop_back [2025-03-17 06:52:28,979 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-03-17 06:52:28,979 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2025-03-17 06:52:28,979 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2025-03-17 06:52:28,979 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2025-03-17 06:52:28,979 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2025-03-17 06:52:28,979 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2025-03-17 06:52:28,979 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2025-03-17 06:52:28,979 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2025-03-17 06:52:28,979 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2025-03-17 06:52:28,979 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2025-03-17 06:52:28,979 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2025-03-17 06:52:28,979 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2025-03-17 06:52:28,979 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2025-03-17 06:52:28,979 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2025-03-17 06:52:28,979 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2025-03-17 06:52:28,979 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2025-03-17 06:52:28,981 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2025-03-17 06:52:28,981 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-03-17 06:52:28,981 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-03-17 06:52:28,981 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2025-03-17 06:52:28,981 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2025-03-17 06:52:28,981 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2025-03-17 06:52:28,981 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2025-03-17 06:52:28,981 INFO L130 BoogieDeclarations]: Found specification of procedure my_memmove [2025-03-17 06:52:28,981 INFO L138 BoogieDeclarations]: Found implementation of procedure my_memmove [2025-03-17 06:52:28,981 INFO L130 BoogieDeclarations]: Found specification of procedure memset_impl [2025-03-17 06:52:28,982 INFO L138 BoogieDeclarations]: Found implementation of procedure memset_impl [2025-03-17 06:52:28,982 INFO L130 BoogieDeclarations]: Found specification of procedure my_memset [2025-03-17 06:52:28,982 INFO L138 BoogieDeclarations]: Found implementation of procedure my_memset [2025-03-17 06:52:28,982 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_array_list_has_allocated_data_member [2025-03-17 06:52:28,982 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_array_list_has_allocated_data_member [2025-03-17 06:52:28,982 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-17 06:52:28,982 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-03-17 06:52:28,982 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-03-17 06:52:28,982 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2025-03-17 06:52:28,982 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2025-03-17 06:52:28,982 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2025-03-17 06:52:29,260 INFO L256 CfgBuilder]: Building ICFG [2025-03-17 06:52:29,262 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-17 06:52:29,312 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L2782: havoc #t~malloc77.base, #t~malloc77.offset; [2025-03-17 06:52:29,316 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L267: havoc #t~nondet10; [2025-03-17 06:52:29,335 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L263: havoc #t~nondet6; [2025-03-17 06:52:29,364 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L2588: havoc #t~ret57#1; [2025-03-17 06:52:29,372 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L7414: havoc #t~ret688.base, #t~ret688.offset; [2025-03-17 06:52:29,472 INFO L1322 $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; [2025-03-17 06:52:29,475 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L261: havoc #t~nondet4; [2025-03-17 06:52:29,481 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L7361: havoc #t~ret682.base, #t~ret682.offset; [2025-03-17 06:52:35,057 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L3355: havoc aws_array_list_pop_front_#t~ret182#1; [2025-03-17 06:52:35,057 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L3387: havoc aws_array_list_erase_#t~ret196#1; [2025-03-17 06:52:35,297 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L3445: havoc #t~ret230; [2025-03-17 06:52:35,297 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L3432: havoc ~last_item_offset~1; [2025-03-17 06:52:35,413 INFO L? ?]: Removed 140 outVars from TransFormulas that were not future-live. [2025-03-17 06:52:35,413 INFO L307 CfgBuilder]: Performing block encoding [2025-03-17 06:52:35,425 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-17 06:52:35,426 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-17 06:52:35,426 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.03 06:52:35 BoogieIcfgContainer [2025-03-17 06:52:35,426 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-17 06:52:35,429 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-17 06:52:35,429 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-17 06:52:35,438 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-17 06:52:35,438 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.03 06:52:26" (1/3) ... [2025-03-17 06:52:35,439 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c01da0c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.03 06:52:35, skipping insertion in model container [2025-03-17 06:52:35,439 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 06:52:28" (2/3) ... [2025-03-17 06:52:35,439 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c01da0c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.03 06:52:35, skipping insertion in model container [2025-03-17 06:52:35,439 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.03 06:52:35" (3/3) ... [2025-03-17 06:52:35,440 INFO L128 eAbstractionObserver]: Analyzing ICFG aws_array_list_erase_harness_negated.i [2025-03-17 06:52:35,455 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-17 06:52:35,457 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG aws_array_list_erase_harness_negated.i that has 21 procedures, 249 locations, 1 initial locations, 0 loop locations, and 1 error locations. [2025-03-17 06:52:35,512 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-17 06:52:35,522 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;@49ed341e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-17 06:52:35,523 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-03-17 06:52:35,528 INFO L276 IsEmpty]: Start isEmpty. Operand has 249 states, 139 states have (on average 1.1942446043165467) internal successors, (166), 140 states have internal predecessors, (166), 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) [2025-03-17 06:52:35,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2025-03-17 06:52:35,535 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 06:52:35,536 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] [2025-03-17 06:52:35,537 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-17 06:52:35,542 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 06:52:35,543 INFO L85 PathProgramCache]: Analyzing trace with hash 523168789, now seen corresponding path program 1 times [2025-03-17 06:52:35,548 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 06:52:35,549 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [75678854] [2025-03-17 06:52:35,549 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 06:52:35,550 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 06:52:40,047 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 86 statements into 1 equivalence classes. [2025-03-17 06:52:40,422 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 86 of 86 statements. [2025-03-17 06:52:40,423 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 06:52:40,423 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 06:52:40,852 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 74 trivial. 0 not checked. [2025-03-17 06:52:40,855 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 06:52:40,855 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [75678854] [2025-03-17 06:52:40,856 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [75678854] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 06:52:40,857 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [23787759] [2025-03-17 06:52:40,857 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 06:52:40,857 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 06:52:40,857 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 06:52:40,859 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) [2025-03-17 06:52:40,896 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-03-17 06:52:45,650 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 86 statements into 1 equivalence classes. [2025-03-17 06:52:46,142 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 86 of 86 statements. [2025-03-17 06:52:46,142 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 06:52:46,142 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 06:52:46,171 INFO L256 TraceCheckSpWp]: Trace formula consists of 4132 conjuncts, 1 conjuncts are in the unsatisfiable core [2025-03-17 06:52:46,178 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 06:52:46,190 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 74 trivial. 0 not checked. [2025-03-17 06:52:46,192 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-17 06:52:46,192 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [23787759] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 06:52:46,192 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-17 06:52:46,193 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2025-03-17 06:52:46,195 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [190236709] [2025-03-17 06:52:46,195 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 06:52:46,199 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-03-17 06:52:46,200 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 06:52:46,217 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-03-17 06:52:46,218 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-03-17 06:52:46,220 INFO L87 Difference]: Start difference. First operand has 249 states, 139 states have (on average 1.1942446043165467) internal successors, (166), 140 states have internal predecessors, (166), 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 17.0) internal successors, (34), 2 states have internal predecessors, (34), 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) [2025-03-17 06:52:46,268 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 06:52:46,268 INFO L93 Difference]: Finished difference Result 490 states and 730 transitions. [2025-03-17 06:52:46,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-17 06:52:46,270 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 17.0) internal successors, (34), 2 states have internal predecessors, (34), 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 86 [2025-03-17 06:52:46,270 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 06:52:46,280 INFO L225 Difference]: With dead ends: 490 [2025-03-17 06:52:46,280 INFO L226 Difference]: Without dead ends: 246 [2025-03-17 06:52:46,286 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 87 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-03-17 06:52:46,288 INFO L435 NwaCegarLoop]: 340 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, 340 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 [2025-03-17 06:52:46,289 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 340 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-17 06:52:46,300 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 246 states. [2025-03-17 06:52:46,338 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 246 to 246. [2025-03-17 06:52:46,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 246 states, 137 states have (on average 1.1824817518248176) internal successors, (162), 138 states have internal predecessors, (162), 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) [2025-03-17 06:52:46,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 246 states to 246 states and 337 transitions. [2025-03-17 06:52:46,355 INFO L78 Accepts]: Start accepts. Automaton has 246 states and 337 transitions. Word has length 86 [2025-03-17 06:52:46,356 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 06:52:46,357 INFO L471 AbstractCegarLoop]: Abstraction has 246 states and 337 transitions. [2025-03-17 06:52:46,357 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 17.0) internal successors, (34), 2 states have internal predecessors, (34), 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) [2025-03-17 06:52:46,357 INFO L276 IsEmpty]: Start isEmpty. Operand 246 states and 337 transitions. [2025-03-17 06:52:46,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2025-03-17 06:52:46,360 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 06:52:46,360 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] [2025-03-17 06:52:46,374 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2025-03-17 06:52:46,561 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 [2025-03-17 06:52:46,561 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-17 06:52:46,562 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 06:52:46,562 INFO L85 PathProgramCache]: Analyzing trace with hash -640366573, now seen corresponding path program 1 times [2025-03-17 06:52:46,562 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 06:52:46,562 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1771010459] [2025-03-17 06:52:46,562 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 06:52:46,562 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 06:52:50,311 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 86 statements into 1 equivalence classes. [2025-03-17 06:52:50,561 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 86 of 86 statements. [2025-03-17 06:52:50,561 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 06:52:50,562 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 06:52:53,309 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 11 proven. 10 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2025-03-17 06:52:53,313 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 06:52:53,314 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1771010459] [2025-03-17 06:52:53,314 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1771010459] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 06:52:53,314 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [31596023] [2025-03-17 06:52:53,314 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 06:52:53,314 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 06:52:53,314 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 06:52:53,319 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) [2025-03-17 06:52:53,322 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-03-17 06:52:57,674 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 86 statements into 1 equivalence classes. [2025-03-17 06:52:58,111 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 86 of 86 statements. [2025-03-17 06:52:58,111 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 06:52:58,111 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 06:52:58,132 INFO L256 TraceCheckSpWp]: Trace formula consists of 4132 conjuncts, 59 conjuncts are in the unsatisfiable core [2025-03-17 06:52:58,143 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 06:53:01,389 WARN L873 $PredicateComparison]: unable to prove that (exists ((v_ensure_array_list_has_allocated_data_member_~list.offset_8 Int)) (and (= (store |c_old(#memory_$Pointer$#2.base)| |c_ensure_array_list_has_allocated_data_member_#in~list.base| (store (select |c_old(#memory_$Pointer$#2.base)| |c_ensure_array_list_has_allocated_data_member_#in~list.base|) v_ensure_array_list_has_allocated_data_member_~list.offset_8 (select (select |c_#memory_$Pointer$#2.base| |c_ensure_array_list_has_allocated_data_member_#in~list.base|) v_ensure_array_list_has_allocated_data_member_~list.offset_8))) |c_#memory_$Pointer$#2.base|) (<= v_ensure_array_list_has_allocated_data_member_~list.offset_8 |c_ensure_array_list_has_allocated_data_member_#in~list.offset|) (= (store |c_old(#memory_$Pointer$#2.offset)| |c_ensure_array_list_has_allocated_data_member_#in~list.base| (store (select |c_old(#memory_$Pointer$#2.offset)| |c_ensure_array_list_has_allocated_data_member_#in~list.base|) v_ensure_array_list_has_allocated_data_member_~list.offset_8 (select (select |c_#memory_$Pointer$#2.offset| |c_ensure_array_list_has_allocated_data_member_#in~list.base|) v_ensure_array_list_has_allocated_data_member_~list.offset_8))) |c_#memory_$Pointer$#2.offset|))) is different from true [2025-03-17 06:53:01,554 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-17 06:53:01,559 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 [2025-03-17 06:53:01,619 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-17 06:53:01,621 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 [2025-03-17 06:53:05,627 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 47 proven. 16 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2025-03-17 06:53:05,629 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 06:53:12,099 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [31596023] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 06:53:12,100 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-03-17 06:53:12,100 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 13] total 16 [2025-03-17 06:53:12,100 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [843710629] [2025-03-17 06:53:12,100 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-03-17 06:53:12,101 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2025-03-17 06:53:12,101 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 06:53:12,102 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2025-03-17 06:53:12,103 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=536, Unknown=1, NotChecked=46, Total=650 [2025-03-17 06:53:12,103 INFO L87 Difference]: Start difference. First operand 246 states and 337 transitions. Second operand has 16 states, 14 states have (on average 5.0) internal successors, (70), 13 states have internal predecessors, (70), 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) [2025-03-17 06:53:16,180 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2025-03-17 06:53:20,629 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.45s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2025-03-17 06:53:25,008 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.38s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2025-03-17 06:53:29,419 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.41s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2025-03-17 06:53:33,851 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.43s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers []