./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 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_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-?-e2fb8be-m [2025-03-08 17:44:34,061 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-08 17:44:34,103 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2025-03-08 17:44:34,108 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-08 17:44:34,108 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-08 17:44:34,128 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-08 17:44:34,128 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-08 17:44:34,129 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-08 17:44:34,129 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-08 17:44:34,129 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-08 17:44:34,130 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-08 17:44:34,130 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-08 17:44:34,130 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-08 17:44:34,131 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-08 17:44:34,131 INFO L153 SettingsManager]: * Use SBE=true [2025-03-08 17:44:34,131 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-08 17:44:34,131 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-08 17:44:34,131 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-08 17:44:34,131 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-08 17:44:34,131 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-08 17:44:34,131 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-08 17:44:34,131 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-08 17:44:34,131 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-08 17:44:34,132 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-08 17:44:34,132 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-08 17:44:34,132 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-08 17:44:34,132 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-08 17:44:34,132 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-08 17:44:34,132 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-08 17:44:34,132 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-08 17:44:34,132 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-08 17:44:34,133 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-08 17:44:34,133 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-08 17:44:34,133 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-08 17:44:34,133 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-08 17:44:34,133 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-08 17:44:34,133 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-08 17:44:34,133 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-08 17:44:34,133 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-08 17:44:34,133 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-08 17:44:34,133 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 [2025-03-08 17:44:34,339 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-08 17:44:34,345 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-08 17:44:34,346 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-08 17:44:34,347 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-08 17:44:34,347 INFO L274 PluginConnector]: CDTParser initialized [2025-03-08 17:44:34,347 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_array_list_erase_harness_negated.i [2025-03-08 17:44:35,500 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/42d42e9bf/d041369a74cd4b269b91a722470941a8/FLAG847bd6bbe [2025-03-08 17:44:35,983 INFO L384 CDTParser]: Found 1 translation units. [2025-03-08 17:44:35,984 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_array_list_erase_harness_negated.i [2025-03-08 17:44:36,019 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/42d42e9bf/d041369a74cd4b269b91a722470941a8/FLAG847bd6bbe [2025-03-08 17:44:36,031 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/42d42e9bf/d041369a74cd4b269b91a722470941a8 [2025-03-08 17:44:36,033 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-08 17:44:36,035 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-08 17:44:36,037 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-08 17:44:36,037 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-08 17:44:36,040 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-08 17:44:36,041 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.03 05:44:36" (1/1) ... [2025-03-08 17:44:36,042 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@19da86e6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:44:36, skipping insertion in model container [2025-03-08 17:44:36,042 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.03 05:44:36" (1/1) ... [2025-03-08 17:44:36,102 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-08 17:44:36,261 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] [2025-03-08 17:44:36,268 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] [2025-03-08 17:44:36,685 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:44:36,685 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:44:36,686 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:44:36,686 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:44:36,687 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:44:36,695 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:44:36,695 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:44:36,696 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:44:36,696 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:44:36,700 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:44:36,701 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:44:36,702 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:44:36,702 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:44:36,975 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:44:36,976 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:44:36,980 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:44:36,984 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:44:36,988 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:44:36,989 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:44:36,992 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:44:36,996 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:44:37,030 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:44:37,031 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:44:37,036 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-08 17:44:37,055 INFO L200 MainTranslator]: Completed pre-run [2025-03-08 17:44:37,065 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] [2025-03-08 17:44:37,065 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] [2025-03-08 17:44:37,104 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:44:37,104 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:44:37,104 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:44:37,104 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:44:37,105 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:44:37,112 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:44:37,113 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:44:37,114 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:44:37,114 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:44:37,115 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:44:37,118 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:44:37,118 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:44:37,118 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:44:37,184 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:44:37,187 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:44:37,189 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:44:37,189 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:44:37,190 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:44:37,190 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:44:37,191 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:44:37,194 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:44:37,201 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [7793-7804] [2025-03-08 17:44:37,217 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:44:37,220 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:44:37,221 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-08 17:44:37,382 INFO L204 MainTranslator]: Completed translation [2025-03-08 17:44:37,383 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:44:37 WrapperNode [2025-03-08 17:44:37,383 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-08 17:44:37,384 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-08 17:44:37,384 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-08 17:44:37,384 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-08 17:44:37,388 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:44:37" (1/1) ... [2025-03-08 17:44:37,447 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:44:37" (1/1) ... [2025-03-08 17:44:37,523 INFO L138 Inliner]: procedures = 678, calls = 1677, calls flagged for inlining = 52, calls inlined = 11, statements flattened = 734 [2025-03-08 17:44:37,527 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-08 17:44:37,530 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-08 17:44:37,530 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-08 17:44:37,530 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-08 17:44:37,537 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:44:37" (1/1) ... [2025-03-08 17:44:37,537 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:44:37" (1/1) ... [2025-03-08 17:44:37,542 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:44:37" (1/1) ... [2025-03-08 17:44:37,582 INFO L175 MemorySlicer]: Split 331 memory accesses to 6 slices as follows [238, 2, 73, 6, 3, 9]. 72 percent of accesses are in the largest equivalence class. The 24 initializations are split as follows [6, 2, 10, 0, 1, 5]. The 243 writes are split as follows [232, 0, 6, 2, 1, 2]. [2025-03-08 17:44:37,582 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:44:37" (1/1) ... [2025-03-08 17:44:37,582 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:44:37" (1/1) ... [2025-03-08 17:44:37,610 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:44:37" (1/1) ... [2025-03-08 17:44:37,612 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:44:37" (1/1) ... [2025-03-08 17:44:37,616 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:44:37" (1/1) ... [2025-03-08 17:44:37,618 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:44:37" (1/1) ... [2025-03-08 17:44:37,624 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-08 17:44:37,625 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-08 17:44:37,625 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-08 17:44:37,625 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-08 17:44:37,626 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:44:37" (1/1) ... [2025-03-08 17:44:37,632 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-08 17:44:37,646 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 17:44:37,657 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 17:44:37,659 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 17:44:37,679 INFO L130 BoogieDeclarations]: Found specification of procedure memmove_impl [2025-03-08 17:44:37,679 INFO L138 BoogieDeclarations]: Found implementation of procedure memmove_impl [2025-03-08 17:44:37,679 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-03-08 17:44:37,679 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_bounded [2025-03-08 17:44:37,679 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_bounded [2025-03-08 17:44:37,680 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_valid [2025-03-08 17:44:37,680 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_valid [2025-03-08 17:44:37,680 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2025-03-08 17:44:37,680 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2025-03-08 17:44:37,680 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2025-03-08 17:44:37,680 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2025-03-08 17:44:37,680 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2025-03-08 17:44:37,680 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2025-03-08 17:44:37,680 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2025-03-08 17:44:37,681 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2025-03-08 17:44:37,681 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-03-08 17:44:37,681 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-03-08 17:44:37,681 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2025-03-08 17:44:37,681 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2025-03-08 17:44:37,683 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2025-03-08 17:44:37,683 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2025-03-08 17:44:37,683 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2025-03-08 17:44:37,683 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2025-03-08 17:44:37,683 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2025-03-08 17:44:37,683 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2025-03-08 17:44:37,683 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-03-08 17:44:37,683 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-08 17:44:37,683 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint8_t [2025-03-08 17:44:37,683 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint8_t [2025-03-08 17:44:37,683 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2025-03-08 17:44:37,684 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2025-03-08 17:44:37,684 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2025-03-08 17:44:37,684 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2025-03-08 17:44:37,684 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2025-03-08 17:44:37,684 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2025-03-08 17:44:37,684 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-08 17:44:37,684 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-08 17:44:37,684 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2025-03-08 17:44:37,684 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2025-03-08 17:44:37,684 INFO L130 BoogieDeclarations]: Found specification of procedure assert_byte_from_buffer_matches [2025-03-08 17:44:37,685 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_byte_from_buffer_matches [2025-03-08 17:44:37,685 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_size_t [2025-03-08 17:44:37,685 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_size_t [2025-03-08 17:44:37,685 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2025-03-08 17:44:37,685 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2025-03-08 17:44:37,685 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2025-03-08 17:44:37,685 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2025-03-08 17:44:37,685 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2025-03-08 17:44:37,685 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2025-03-08 17:44:37,685 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2025-03-08 17:44:37,685 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2025-03-08 17:44:37,685 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_length [2025-03-08 17:44:37,685 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_length [2025-03-08 17:44:37,685 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2025-03-08 17:44:37,685 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2025-03-08 17:44:37,685 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_pop_back [2025-03-08 17:44:37,685 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_pop_back [2025-03-08 17:44:37,685 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-03-08 17:44:37,685 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2025-03-08 17:44:37,685 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2025-03-08 17:44:37,685 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2025-03-08 17:44:37,685 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2025-03-08 17:44:37,685 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2025-03-08 17:44:37,685 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2025-03-08 17:44:37,685 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2025-03-08 17:44:37,685 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2025-03-08 17:44:37,685 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2025-03-08 17:44:37,685 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2025-03-08 17:44:37,685 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2025-03-08 17:44:37,685 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2025-03-08 17:44:37,686 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2025-03-08 17:44:37,686 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2025-03-08 17:44:37,686 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2025-03-08 17:44:37,686 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2025-03-08 17:44:37,686 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-03-08 17:44:37,686 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-03-08 17:44:37,686 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2025-03-08 17:44:37,686 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2025-03-08 17:44:37,686 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2025-03-08 17:44:37,686 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2025-03-08 17:44:37,686 INFO L130 BoogieDeclarations]: Found specification of procedure my_memmove [2025-03-08 17:44:37,686 INFO L138 BoogieDeclarations]: Found implementation of procedure my_memmove [2025-03-08 17:44:37,686 INFO L130 BoogieDeclarations]: Found specification of procedure memset_impl [2025-03-08 17:44:37,686 INFO L138 BoogieDeclarations]: Found implementation of procedure memset_impl [2025-03-08 17:44:37,686 INFO L130 BoogieDeclarations]: Found specification of procedure my_memset [2025-03-08 17:44:37,686 INFO L138 BoogieDeclarations]: Found implementation of procedure my_memset [2025-03-08 17:44:37,686 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_array_list_has_allocated_data_member [2025-03-08 17:44:37,686 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_array_list_has_allocated_data_member [2025-03-08 17:44:37,686 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-08 17:44:37,686 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-03-08 17:44:37,686 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-03-08 17:44:37,686 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2025-03-08 17:44:37,686 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2025-03-08 17:44:37,686 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2025-03-08 17:44:37,909 INFO L256 CfgBuilder]: Building ICFG [2025-03-08 17:44:37,911 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-08 17:44:37,944 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L2782: havoc #t~malloc77.base, #t~malloc77.offset; [2025-03-08 17:44:37,947 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L267: havoc #t~nondet10; [2025-03-08 17:44:37,967 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L263: havoc #t~nondet6; [2025-03-08 17:44:37,994 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L2588: havoc #t~ret57#1; [2025-03-08 17:44:38,001 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L7414: havoc #t~ret688.base, #t~ret688.offset; [2025-03-08 17:44:38,073 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 17:44:38,076 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L261: havoc #t~nondet4; [2025-03-08 17:44:38,080 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L7361: havoc #t~ret682.base, #t~ret682.offset; [2025-03-08 17:44:44,373 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L3355: havoc aws_array_list_pop_front_#t~ret182#1; [2025-03-08 17:44:44,373 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L3387: havoc aws_array_list_erase_#t~ret196#1; [2025-03-08 17:44:44,629 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L3445: havoc #t~ret230; [2025-03-08 17:44:44,629 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L3432: havoc ~last_item_offset~1; [2025-03-08 17:44:44,710 INFO L? ?]: Removed 142 outVars from TransFormulas that were not future-live. [2025-03-08 17:44:44,710 INFO L307 CfgBuilder]: Performing block encoding [2025-03-08 17:44:44,720 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-08 17:44:44,720 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-08 17:44:44,721 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.03 05:44:44 BoogieIcfgContainer [2025-03-08 17:44:44,721 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-08 17:44:44,722 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-08 17:44:44,722 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-08 17:44:44,726 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-08 17:44:44,726 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.03 05:44:36" (1/3) ... [2025-03-08 17:44:44,727 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@63ef0685 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.03 05:44:44, skipping insertion in model container [2025-03-08 17:44:44,727 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:44:37" (2/3) ... [2025-03-08 17:44:44,727 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@63ef0685 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.03 05:44:44, skipping insertion in model container [2025-03-08 17:44:44,727 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.03 05:44:44" (3/3) ... [2025-03-08 17:44:44,728 INFO L128 eAbstractionObserver]: Analyzing ICFG aws_array_list_erase_harness_negated.i [2025-03-08 17:44:44,740 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-08 17:44:44,743 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG aws_array_list_erase_harness_negated.i that has 21 procedures, 254 locations, 1 initial locations, 0 loop locations, and 1 error locations. [2025-03-08 17:44:44,803 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-08 17:44:44,813 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;@27609a3a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-08 17:44:44,814 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-03-08 17:44:44,818 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 17:44:44,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2025-03-08 17:44:44,827 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 17:44:44,828 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 17:44:44,828 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 17:44:44,833 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 17:44:44,833 INFO L85 PathProgramCache]: Analyzing trace with hash -453061669, now seen corresponding path program 1 times [2025-03-08 17:44:44,839 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 17:44:44,840 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1196725138] [2025-03-08 17:44:44,840 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 17:44:44,840 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 17:44:49,104 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 87 statements into 1 equivalence classes. [2025-03-08 17:44:49,416 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 87 of 87 statements. [2025-03-08 17:44:49,417 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 17:44:49,417 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 17:44:49,806 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 17:44:49,808 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 17:44:49,808 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1196725138] [2025-03-08 17:44:49,808 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1196725138] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-08 17:44:49,809 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [181086499] [2025-03-08 17:44:49,809 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 17:44:49,809 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 17:44:49,810 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 17:44:49,811 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 17:44:49,813 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 17:44:53,936 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 87 statements into 1 equivalence classes. [2025-03-08 17:44:54,374 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 87 of 87 statements. [2025-03-08 17:44:54,374 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 17:44:54,374 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 17:44:54,395 INFO L256 TraceCheckSpWp]: Trace formula consists of 4132 conjuncts, 1 conjuncts are in the unsatisfiable core [2025-03-08 17:44:54,402 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-08 17:44:54,418 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 17:44:54,419 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-08 17:44:54,419 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [181086499] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 17:44:54,419 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-08 17:44:54,419 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2025-03-08 17:44:54,421 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2041243431] [2025-03-08 17:44:54,421 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 17:44:54,424 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-03-08 17:44:54,425 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 17:44:54,440 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-03-08 17:44:54,441 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-03-08 17:44:54,443 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 17:44:54,487 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 17:44:54,487 INFO L93 Difference]: Finished difference Result 499 states and 739 transitions. [2025-03-08 17:44:54,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-08 17:44:54,489 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 17:44:54,489 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 17:44:54,498 INFO L225 Difference]: With dead ends: 499 [2025-03-08 17:44:54,498 INFO L226 Difference]: Without dead ends: 249 [2025-03-08 17:44:54,505 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 17:44:54,510 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 17:44:54,512 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 17:44:54,522 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 249 states. [2025-03-08 17:44:54,549 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 249 to 249. [2025-03-08 17:44:54,551 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 17:44:54,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 249 states to 249 states and 340 transitions. [2025-03-08 17:44:54,560 INFO L78 Accepts]: Start accepts. Automaton has 249 states and 340 transitions. Word has length 87 [2025-03-08 17:44:54,561 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 17:44:54,562 INFO L471 AbstractCegarLoop]: Abstraction has 249 states and 340 transitions. [2025-03-08 17:44:54,562 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 17:44:54,562 INFO L276 IsEmpty]: Start isEmpty. Operand 249 states and 340 transitions. [2025-03-08 17:44:54,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2025-03-08 17:44:54,564 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 17:44:54,565 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 17:44:54,579 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 17:44:54,765 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 17:44:54,765 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 17:44:54,766 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 17:44:54,766 INFO L85 PathProgramCache]: Analyzing trace with hash -1616597031, now seen corresponding path program 1 times [2025-03-08 17:44:54,766 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 17:44:54,766 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1415175623] [2025-03-08 17:44:54,766 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 17:44:54,766 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 17:44:58,319 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 87 statements into 1 equivalence classes. [2025-03-08 17:44:58,549 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 87 of 87 statements. [2025-03-08 17:44:58,549 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 17:44:58,549 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 17:45:01,036 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2025-03-08 17:45:01,038 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 17:45:01,038 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1415175623] [2025-03-08 17:45:01,038 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1415175623] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 17:45:01,038 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 17:45:01,038 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-03-08 17:45:01,038 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1487881787] [2025-03-08 17:45:01,039 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 17:45:01,040 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-08 17:45:01,040 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 17:45:01,041 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-08 17:45:01,041 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-03-08 17:45:01,041 INFO L87 Difference]: Start difference. First operand 249 states and 340 transitions. Second operand has 6 states, 5 states have (on average 7.0) internal successors, (35), 4 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), 1 states have call successors, (14) [2025-03-08 17:45:01,538 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 17:45:01,538 INFO L93 Difference]: Finished difference Result 259 states and 367 transitions. [2025-03-08 17:45:01,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-08 17:45:01,539 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 7.0) internal successors, (35), 4 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), 1 states have call successors, (14) Word has length 87 [2025-03-08 17:45:01,539 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 17:45:01,542 INFO L225 Difference]: With dead ends: 259 [2025-03-08 17:45:01,542 INFO L226 Difference]: Without dead ends: 257 [2025-03-08 17:45:01,544 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2025-03-08 17:45:01,544 INFO L435 NwaCegarLoop]: 337 mSDtfsCounter, 3 mSDsluCounter, 1324 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 1661 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2025-03-08 17:45:01,544 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 1661 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2025-03-08 17:45:01,545 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 257 states. [2025-03-08 17:45:01,561 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 257 to 256. [2025-03-08 17:45:01,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 256 states, 144 states have (on average 1.1736111111111112) internal successors, (169), 146 states have internal predecessors, (169), 89 states have call successors, (89), 21 states have call predecessors, (89), 22 states have return successors, (106), 88 states have call predecessors, (106), 88 states have call successors, (106) [2025-03-08 17:45:01,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 256 states to 256 states and 364 transitions. [2025-03-08 17:45:01,566 INFO L78 Accepts]: Start accepts. Automaton has 256 states and 364 transitions. Word has length 87 [2025-03-08 17:45:01,566 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 17:45:01,566 INFO L471 AbstractCegarLoop]: Abstraction has 256 states and 364 transitions. [2025-03-08 17:45:01,566 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 7.0) internal successors, (35), 4 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), 1 states have call successors, (14) [2025-03-08 17:45:01,566 INFO L276 IsEmpty]: Start isEmpty. Operand 256 states and 364 transitions. [2025-03-08 17:45:01,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2025-03-08 17:45:01,568 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 17:45:01,569 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 17:45:01,569 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-03-08 17:45:01,569 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 17:45:01,569 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 17:45:01,569 INFO L85 PathProgramCache]: Analyzing trace with hash -250056441, now seen corresponding path program 1 times [2025-03-08 17:45:01,570 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 17:45:01,570 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1482181790] [2025-03-08 17:45:01,570 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 17:45:01,570 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 17:45:05,080 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 102 statements into 1 equivalence classes. [2025-03-08 17:45:05,167 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 102 of 102 statements. [2025-03-08 17:45:05,167 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 17:45:05,168 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 17:45:06,636 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2025-03-08 17:45:06,636 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 17:45:06,636 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1482181790] [2025-03-08 17:45:06,636 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1482181790] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 17:45:06,636 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 17:45:06,636 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2025-03-08 17:45:06,637 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [486313517] [2025-03-08 17:45:06,637 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 17:45:06,637 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-03-08 17:45:06,637 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 17:45:06,638 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-03-08 17:45:06,639 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2025-03-08 17:45:06,639 INFO L87 Difference]: Start difference. First operand 256 states and 364 transitions. Second operand has 8 states, 8 states have (on average 5.875) internal successors, (47), 7 states have internal predecessors, (47), 6 states have call successors, (18), 3 states have call predecessors, (18), 2 states have return successors, (16), 6 states have call predecessors, (16), 5 states have call successors, (16) [2025-03-08 17:45:09,429 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 17:45:09,429 INFO L93 Difference]: Finished difference Result 485 states and 699 transitions. [2025-03-08 17:45:09,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-03-08 17:45:09,430 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.875) internal successors, (47), 7 states have internal predecessors, (47), 6 states have call successors, (18), 3 states have call predecessors, (18), 2 states have return successors, (16), 6 states have call predecessors, (16), 5 states have call successors, (16) Word has length 102 [2025-03-08 17:45:09,430 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 17:45:09,433 INFO L225 Difference]: With dead ends: 485 [2025-03-08 17:45:09,433 INFO L226 Difference]: Without dead ends: 268 [2025-03-08 17:45:09,434 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2025-03-08 17:45:09,435 INFO L435 NwaCegarLoop]: 321 mSDtfsCounter, 119 mSDsluCounter, 1699 mSDsCounter, 0 mSdLazyCounter, 231 mSolverCounterSat, 76 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 133 SdHoareTripleChecker+Valid, 2020 SdHoareTripleChecker+Invalid, 307 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 76 IncrementalHoareTripleChecker+Valid, 231 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2025-03-08 17:45:09,435 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [133 Valid, 2020 Invalid, 307 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [76 Valid, 231 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2025-03-08 17:45:09,436 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 268 states. [2025-03-08 17:45:09,462 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 268 to 268. [2025-03-08 17:45:09,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 268 states, 150 states have (on average 1.1733333333333333) internal successors, (176), 152 states have internal predecessors, (176), 94 states have call successors, (94), 22 states have call predecessors, (94), 23 states have return successors, (106), 93 states have call predecessors, (106), 93 states have call successors, (106) [2025-03-08 17:45:09,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 268 states to 268 states and 376 transitions. [2025-03-08 17:45:09,465 INFO L78 Accepts]: Start accepts. Automaton has 268 states and 376 transitions. Word has length 102 [2025-03-08 17:45:09,465 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 17:45:09,465 INFO L471 AbstractCegarLoop]: Abstraction has 268 states and 376 transitions. [2025-03-08 17:45:09,465 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.875) internal successors, (47), 7 states have internal predecessors, (47), 6 states have call successors, (18), 3 states have call predecessors, (18), 2 states have return successors, (16), 6 states have call predecessors, (16), 5 states have call successors, (16) [2025-03-08 17:45:09,465 INFO L276 IsEmpty]: Start isEmpty. Operand 268 states and 376 transitions. [2025-03-08 17:45:09,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2025-03-08 17:45:09,469 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 17:45:09,470 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 5, 5, 5, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 17:45:09,470 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-03-08 17:45:09,470 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 17:45:09,471 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 17:45:09,471 INFO L85 PathProgramCache]: Analyzing trace with hash 783121123, now seen corresponding path program 1 times [2025-03-08 17:45:09,471 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 17:45:09,471 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [19725884] [2025-03-08 17:45:09,471 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 17:45:09,471 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 17:45:13,097 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 102 statements into 1 equivalence classes. [2025-03-08 17:45:13,230 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 102 of 102 statements. [2025-03-08 17:45:13,231 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 17:45:13,231 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 17:45:15,152 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2025-03-08 17:45:15,152 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 17:45:15,152 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [19725884] [2025-03-08 17:45:15,152 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [19725884] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 17:45:15,152 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 17:45:15,153 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-03-08 17:45:15,153 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [341747556] [2025-03-08 17:45:15,153 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 17:45:15,153 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-08 17:45:15,153 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 17:45:15,153 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-08 17:45:15,153 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-03-08 17:45:15,154 INFO L87 Difference]: Start difference. First operand 268 states and 376 transitions. Second operand has 6 states, 5 states have (on average 8.4) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (17), 2 states have call predecessors, (17), 1 states have call successors, (17) [2025-03-08 17:45:15,675 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 17:45:15,676 INFO L93 Difference]: Finished difference Result 274 states and 381 transitions. [2025-03-08 17:45:15,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-08 17:45:15,676 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 8.4) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (17), 2 states have call predecessors, (17), 1 states have call successors, (17) Word has length 102 [2025-03-08 17:45:15,677 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 17:45:15,678 INFO L225 Difference]: With dead ends: 274 [2025-03-08 17:45:15,678 INFO L226 Difference]: Without dead ends: 272 [2025-03-08 17:45:15,679 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2025-03-08 17:45:15,680 INFO L435 NwaCegarLoop]: 340 mSDtfsCounter, 3 mSDsluCounter, 1327 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 1667 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2025-03-08 17:45:15,680 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 1667 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2025-03-08 17:45:15,681 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 272 states. [2025-03-08 17:45:15,697 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 272 to 272. [2025-03-08 17:45:15,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 272 states, 153 states have (on average 1.1699346405228759) internal successors, (179), 155 states have internal predecessors, (179), 94 states have call successors, (94), 23 states have call predecessors, (94), 24 states have return successors, (106), 93 states have call predecessors, (106), 93 states have call successors, (106) [2025-03-08 17:45:15,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 272 states to 272 states and 379 transitions. [2025-03-08 17:45:15,700 INFO L78 Accepts]: Start accepts. Automaton has 272 states and 379 transitions. Word has length 102 [2025-03-08 17:45:15,701 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 17:45:15,701 INFO L471 AbstractCegarLoop]: Abstraction has 272 states and 379 transitions. [2025-03-08 17:45:15,701 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 8.4) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (17), 2 states have call predecessors, (17), 1 states have call successors, (17) [2025-03-08 17:45:15,701 INFO L276 IsEmpty]: Start isEmpty. Operand 272 states and 379 transitions. [2025-03-08 17:45:15,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2025-03-08 17:45:15,704 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 17:45:15,704 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 5, 5, 5, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 17:45:15,705 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-03-08 17:45:15,705 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 17:45:15,705 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 17:45:15,705 INFO L85 PathProgramCache]: Analyzing trace with hash -278898653, now seen corresponding path program 1 times [2025-03-08 17:45:15,706 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 17:45:15,706 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [288360191] [2025-03-08 17:45:15,706 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 17:45:15,706 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 17:45:19,044 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 116 statements into 1 equivalence classes. [2025-03-08 17:45:19,134 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 116 of 116 statements. [2025-03-08 17:45:19,135 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 17:45:19,135 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 17:45:19,972 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2025-03-08 17:45:19,973 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 17:45:19,973 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [288360191] [2025-03-08 17:45:19,973 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [288360191] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 17:45:19,973 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 17:45:19,973 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-03-08 17:45:19,973 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [20400776] [2025-03-08 17:45:19,973 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 17:45:19,973 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-08 17:45:19,973 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 17:45:19,974 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-08 17:45:19,974 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-03-08 17:45:19,974 INFO L87 Difference]: Start difference. First operand 272 states and 379 transitions. Second operand has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 5 states have internal predecessors, (47), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (19), 2 states have call predecessors, (19), 1 states have call successors, (19) [2025-03-08 17:45:20,179 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 17:45:20,180 INFO L93 Difference]: Finished difference Result 321 states and 437 transitions. [2025-03-08 17:45:20,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-08 17:45:20,181 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 5 states have internal predecessors, (47), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (19), 2 states have call predecessors, (19), 1 states have call successors, (19) Word has length 116 [2025-03-08 17:45:20,183 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 17:45:20,184 INFO L225 Difference]: With dead ends: 321 [2025-03-08 17:45:20,187 INFO L226 Difference]: Without dead ends: 274 [2025-03-08 17:45:20,188 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-03-08 17:45:20,189 INFO L435 NwaCegarLoop]: 337 mSDtfsCounter, 0 mSDsluCounter, 1340 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1677 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-08 17:45:20,189 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1677 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-08 17:45:20,189 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 274 states. [2025-03-08 17:45:20,202 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 274 to 274. [2025-03-08 17:45:20,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 274 states, 155 states have (on average 1.167741935483871) internal successors, (181), 157 states have internal predecessors, (181), 94 states have call successors, (94), 23 states have call predecessors, (94), 24 states have return successors, (106), 93 states have call predecessors, (106), 93 states have call successors, (106) [2025-03-08 17:45:20,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 274 states to 274 states and 381 transitions. [2025-03-08 17:45:20,205 INFO L78 Accepts]: Start accepts. Automaton has 274 states and 381 transitions. Word has length 116 [2025-03-08 17:45:20,206 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 17:45:20,206 INFO L471 AbstractCegarLoop]: Abstraction has 274 states and 381 transitions. [2025-03-08 17:45:20,206 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 5 states have internal predecessors, (47), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (19), 2 states have call predecessors, (19), 1 states have call successors, (19) [2025-03-08 17:45:20,206 INFO L276 IsEmpty]: Start isEmpty. Operand 274 states and 381 transitions. [2025-03-08 17:45:20,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2025-03-08 17:45:20,207 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 17:45:20,208 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 5, 5, 5, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 17:45:20,208 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-03-08 17:45:20,208 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 17:45:20,209 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 17:45:20,210 INFO L85 PathProgramCache]: Analyzing trace with hash 330229283, now seen corresponding path program 1 times [2025-03-08 17:45:20,210 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 17:45:20,210 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1155932602] [2025-03-08 17:45:20,210 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 17:45:20,210 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 17:45:23,621 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 117 statements into 1 equivalence classes. [2025-03-08 17:45:23,778 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 117 of 117 statements. [2025-03-08 17:45:23,778 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 17:45:23,778 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 17:45:25,337 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 15 proven. 12 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2025-03-08 17:45:25,337 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 17:45:25,337 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1155932602] [2025-03-08 17:45:25,337 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1155932602] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-08 17:45:25,337 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1961490116] [2025-03-08 17:45:25,337 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 17:45:25,337 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 17:45:25,338 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 17:45:25,339 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 17:45:25,340 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 17:45:29,319 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 117 statements into 1 equivalence classes. [2025-03-08 17:46:05,658 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 117 of 117 statements. [2025-03-08 17:46:05,658 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 17:46:05,658 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 17:46:05,684 INFO L256 TraceCheckSpWp]: Trace formula consists of 4242 conjuncts, 17 conjuncts are in the unsatisfiable core [2025-03-08 17:46:05,691 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-08 17:46:06,095 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 58 proven. 0 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2025-03-08 17:46:06,095 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-08 17:46:06,095 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1961490116] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 17:46:06,095 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-08 17:46:06,095 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 8 [2025-03-08 17:46:06,095 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [107400865] [2025-03-08 17:46:06,095 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 17:46:06,095 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-08 17:46:06,095 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 17:46:06,096 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-08 17:46:06,096 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2025-03-08 17:46:06,096 INFO L87 Difference]: Start difference. First operand 274 states and 381 transitions. Second operand has 6 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 3 states have call successors, (20), 2 states have call predecessors, (20), 4 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2025-03-08 17:46:06,375 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 17:46:06,376 INFO L93 Difference]: Finished difference Result 310 states and 418 transitions. [2025-03-08 17:46:06,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-08 17:46:06,377 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 3 states have call successors, (20), 2 states have call predecessors, (20), 4 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) Word has length 117 [2025-03-08 17:46:06,377 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 17:46:06,378 INFO L225 Difference]: With dead ends: 310 [2025-03-08 17:46:06,378 INFO L226 Difference]: Without dead ends: 0 [2025-03-08 17:46:06,379 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 116 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2025-03-08 17:46:06,380 INFO L435 NwaCegarLoop]: 81 mSDtfsCounter, 0 mSDsluCounter, 309 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 390 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-03-08 17:46:06,380 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 390 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-03-08 17:46:06,381 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2025-03-08 17:46:06,382 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2025-03-08 17:46:06,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 17:46:06,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2025-03-08 17:46:06,382 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 117 [2025-03-08 17:46:06,382 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 17:46:06,382 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-03-08 17:46:06,382 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 3 states have call successors, (20), 2 states have call predecessors, (20), 4 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2025-03-08 17:46:06,382 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2025-03-08 17:46:06,383 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2025-03-08 17:46:06,385 INFO L782 garLoopResultBuilder]: Registering result SAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2025-03-08 17:46:06,585 WARN L435 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forcibly destroying the process [2025-03-08 17:46:06,628 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2025-03-08 17:46:06,628 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,SelfDestructingSolverStorable5 [2025-03-08 17:46:06,630 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2025-03-08 17:46:06,632 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2025-03-08 17:46:07,852 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-03-08 17:46:07,857 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.03 05:46:07 BoogieIcfgContainer [2025-03-08 17:46:07,857 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-03-08 17:46:07,858 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-03-08 17:46:07,858 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-03-08 17:46:07,858 INFO L274 PluginConnector]: Witness Printer initialized [2025-03-08 17:46:07,858 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.03 05:44:44" (3/4) ... [2025-03-08 17:46:07,860 INFO L146 WitnessPrinter]: Generating witness for correct program [2025-03-08 17:46:07,865 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure bounded_malloc [2025-03-08 17:46:07,865 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure ensure_array_list_has_allocated_data_member [2025-03-08 17:46:07,865 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure my_memset [2025-03-08 17:46:07,865 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure memset_impl [2025-03-08 17:46:07,865 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure nondet_uint8_t [2025-03-08 17:46:07,865 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure aws_array_list_is_bounded [2025-03-08 17:46:07,865 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure aws_array_list_is_valid [2025-03-08 17:46:07,865 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure nondet_bool [2025-03-08 17:46:07,865 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2025-03-08 17:46:07,865 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure aws_raise_error [2025-03-08 17:46:07,865 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure can_fail_allocator [2025-03-08 17:46:07,865 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure __CPROVER_overflow_mult [2025-03-08 17:46:07,865 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure assert_byte_from_buffer_matches [2025-03-08 17:46:07,865 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure nondet_size_t [2025-03-08 17:46:07,865 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure my_memmove [2025-03-08 17:46:07,865 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure memmove_impl [2025-03-08 17:46:07,865 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure aws_mul_size_checked [2025-03-08 17:46:07,866 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure aws_array_list_length [2025-03-08 17:46:07,866 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure aws_array_list_pop_back [2025-03-08 17:46:07,866 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2025-03-08 17:46:07,875 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 146 nodes and edges [2025-03-08 17:46:07,876 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 65 nodes and edges [2025-03-08 17:46:07,877 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 25 nodes and edges [2025-03-08 17:46:07,878 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2025-03-08 17:46:07,879 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2025-03-08 17:46:07,879 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2025-03-08 17:46:07,880 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2025-03-08 17:46:07,881 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2025-03-08 17:46:08,290 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-03-08 17:46:08,291 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2025-03-08 17:46:08,291 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-03-08 17:46:08,292 INFO L158 Benchmark]: Toolchain (without parser) took 92257.20ms. Allocated memory was 167.8MB in the beginning and 2.8GB in the end (delta: 2.6GB). Free memory was 116.9MB in the beginning and 1.2GB in the end (delta: -1.1GB). Peak memory consumption was 1.5GB. Max. memory is 16.1GB. [2025-03-08 17:46:08,292 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 201.3MB. Free memory is still 116.3MB. There was no memory consumed. Max. memory is 16.1GB. [2025-03-08 17:46:08,292 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1347.01ms. Allocated memory is still 167.8MB. Free memory was 116.9MB in the beginning and 50.9MB in the end (delta: 66.0MB). Peak memory consumption was 107.3MB. Max. memory is 16.1GB. [2025-03-08 17:46:08,293 INFO L158 Benchmark]: Boogie Procedure Inliner took 145.39ms. Allocated memory is still 167.8MB. Free memory was 50.9MB in the beginning and 115.9MB in the end (delta: -65.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-08 17:46:08,293 INFO L158 Benchmark]: Boogie Preprocessor took 94.38ms. Allocated memory is still 167.8MB. Free memory was 115.9MB in the beginning and 99.9MB in the end (delta: 16.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-03-08 17:46:08,293 INFO L158 Benchmark]: IcfgBuilder took 7095.70ms. Allocated memory was 167.8MB in the beginning and 369.1MB in the end (delta: 201.3MB). Free memory was 99.9MB in the beginning and 217.6MB in the end (delta: -117.7MB). Peak memory consumption was 80.2MB. Max. memory is 16.1GB. [2025-03-08 17:46:08,293 INFO L158 Benchmark]: TraceAbstraction took 83134.72ms. Allocated memory was 369.1MB in the beginning and 2.8GB in the end (delta: 2.4GB). Free memory was 216.5MB in the beginning and 1.4GB in the end (delta: -1.2GB). Peak memory consumption was 1.3GB. Max. memory is 16.1GB. [2025-03-08 17:46:08,294 INFO L158 Benchmark]: Witness Printer took 433.52ms. Allocated memory is still 2.8GB. Free memory was 1.4GB in the beginning and 1.2GB in the end (delta: 133.8MB). Peak memory consumption was 134.2MB. Max. memory is 16.1GB. [2025-03-08 17:46:08,294 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 201.3MB. Free memory is still 116.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1347.01ms. Allocated memory is still 167.8MB. Free memory was 116.9MB in the beginning and 50.9MB in the end (delta: 66.0MB). Peak memory consumption was 107.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 145.39ms. Allocated memory is still 167.8MB. Free memory was 50.9MB in the beginning and 115.9MB in the end (delta: -65.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 94.38ms. Allocated memory is still 167.8MB. Free memory was 115.9MB in the beginning and 99.9MB in the end (delta: 16.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * IcfgBuilder took 7095.70ms. Allocated memory was 167.8MB in the beginning and 369.1MB in the end (delta: 201.3MB). Free memory was 99.9MB in the beginning and 217.6MB in the end (delta: -117.7MB). Peak memory consumption was 80.2MB. Max. memory is 16.1GB. * TraceAbstraction took 83134.72ms. Allocated memory was 369.1MB in the beginning and 2.8GB in the end (delta: 2.4GB). Free memory was 216.5MB in the beginning and 1.4GB in the end (delta: -1.2GB). Peak memory consumption was 1.3GB. Max. memory is 16.1GB. * Witness Printer took 433.52ms. Allocated memory is still 2.8GB. Free memory was 1.4GB in the beginning and 1.2GB in the end (delta: 133.8MB). Peak memory consumption was 134.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 7793]: Unsoundness Warning Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [7793-7804] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 223]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 21 procedures, 254 locations, 435 edges, 1 error locations. Started 1 CEGAR loops. OverallTime: 81.9s, OverallIterations: 6, TraceHistogramMax: 6, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 4.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 141 SdHoareTripleChecker+Valid, 3.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 125 mSDsluCounter, 7760 SdHoareTripleChecker+Invalid, 3.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 5999 mSDsCounter, 76 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 358 IncrementalHoareTripleChecker+Invalid, 434 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 76 mSolverCounterUnsat, 1761 mSDtfsCounter, 358 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 241 GetRequests, 212 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 2.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=274occurred in iteration=5, InterpolantAutomatonStates: 35, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 6 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.4s SsaConstructionTime, 37.8s SatisfiabilityAnalysisTime, 9.1s InterpolantComputationTime, 815 NumberOfCodeBlocks, 815 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 807 ConstructedInterpolants, 0 QuantifiedInterpolants, 978 SizeOfPredicates, 0 NumberOfNonLiveVariables, 8374 ConjunctsInSsa, 18 ConjunctsInUnsatCore, 8 InterpolantComputations, 6 PerfectInterpolantSequences, 740/762 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct!