./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/aws-c-common/aws_priority_queue_size_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 551b0097 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/aws-c-common/aws_priority_queue_size_harness.i -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 717a04d93cdb05e0e1badb8a5b5a815e5ffe711ba3ffceb407a0dd65280ab4bb --- Real Ultimate output --- This is Ultimate 0.3.0-?-551b009-m [2025-01-09 17:27:51,070 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-01-09 17:27:51,132 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2025-01-09 17:27:51,138 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-01-09 17:27:51,139 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-01-09 17:27:51,165 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-01-09 17:27:51,167 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-01-09 17:27:51,167 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-01-09 17:27:51,168 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-01-09 17:27:51,168 INFO L153 SettingsManager]: * Use memory slicer=true [2025-01-09 17:27:51,168 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-01-09 17:27:51,168 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-01-09 17:27:51,168 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-01-09 17:27:51,168 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-01-09 17:27:51,168 INFO L153 SettingsManager]: * Use SBE=true [2025-01-09 17:27:51,168 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-01-09 17:27:51,168 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-01-09 17:27:51,169 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-01-09 17:27:51,169 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-01-09 17:27:51,169 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-01-09 17:27:51,169 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-01-09 17:27:51,169 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-01-09 17:27:51,169 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-01-09 17:27:51,169 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-01-09 17:27:51,169 INFO L153 SettingsManager]: * Use constant arrays=true [2025-01-09 17:27:51,169 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-01-09 17:27:51,169 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 17:27:51,169 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-09 17:27:51,169 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 17:27:51,169 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 17:27:51,169 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-01-09 17:27:51,170 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 17:27:51,170 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-09 17:27:51,170 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 17:27:51,170 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 17:27:51,170 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-01-09 17:27:51,170 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-01-09 17:27:51,170 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-01-09 17:27:51,170 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-01-09 17:27:51,170 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-01-09 17:27:51,170 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-01-09 17:27:51,170 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-01-09 17:27:51,170 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-01-09 17:27:51,173 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-01-09 17:27:51,173 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-01-09 17:27:51,173 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 717a04d93cdb05e0e1badb8a5b5a815e5ffe711ba3ffceb407a0dd65280ab4bb [2025-01-09 17:27:51,455 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-01-09 17:27:51,464 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-01-09 17:27:51,467 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-01-09 17:27:51,468 INFO L270 PluginConnector]: Initializing CDTParser... [2025-01-09 17:27:51,469 INFO L274 PluginConnector]: CDTParser initialized [2025-01-09 17:27:51,471 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_priority_queue_size_harness.i [2025-01-09 17:27:52,714 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/cb5cba224/d9a279b74bbe4bb3b210f0a687f6ff61/FLAG8ed8604ea [2025-01-09 17:27:53,298 INFO L384 CDTParser]: Found 1 translation units. [2025-01-09 17:27:53,300 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_priority_queue_size_harness.i [2025-01-09 17:27:53,338 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/cb5cba224/d9a279b74bbe4bb3b210f0a687f6ff61/FLAG8ed8604ea [2025-01-09 17:27:53,356 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/cb5cba224/d9a279b74bbe4bb3b210f0a687f6ff61 [2025-01-09 17:27:53,359 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-01-09 17:27:53,360 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-01-09 17:27:53,362 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-01-09 17:27:53,362 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-01-09 17:27:53,367 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-01-09 17:27:53,368 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 05:27:53" (1/1) ... [2025-01-09 17:27:53,368 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@54c0f257 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:27:53, skipping insertion in model container [2025-01-09 17:27:53,369 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 05:27:53" (1/1) ... [2025-01-09 17:27:53,439 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-01-09 17:27:53,656 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_priority_queue_size_harness.i[4497,4510] [2025-01-09 17:27:53,664 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_priority_queue_size_harness.i[4557,4570] [2025-01-09 17:27:54,253 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:27:54,254 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:27:54,254 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:27:54,254 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:27:54,255 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:27:54,267 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:27:54,268 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:27:54,269 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:27:54,270 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:27:54,616 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:27:54,617 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:27:54,667 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 17:27:54,700 INFO L200 MainTranslator]: Completed pre-run [2025-01-09 17:27:54,710 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_priority_queue_size_harness.i[4497,4510] [2025-01-09 17:27:54,711 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_priority_queue_size_harness.i[4557,4570] [2025-01-09 17:27:54,763 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:27:54,763 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:27:54,764 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:27:54,764 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:27:54,764 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:27:54,774 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:27:54,778 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:27:54,780 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:27:54,780 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:27:54,866 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:27:54,866 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:27:54,875 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [7703-7714] [2025-01-09 17:27:54,897 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 17:27:55,113 INFO L204 MainTranslator]: Completed translation [2025-01-09 17:27:55,114 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:27:55 WrapperNode [2025-01-09 17:27:55,115 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-01-09 17:27:55,116 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-01-09 17:27:55,116 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-01-09 17:27:55,117 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-01-09 17:27:55,123 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:27:55" (1/1) ... [2025-01-09 17:27:55,192 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:27:55" (1/1) ... [2025-01-09 17:27:55,282 INFO L138 Inliner]: procedures = 678, calls = 1543, calls flagged for inlining = 54, calls inlined = 9, statements flattened = 673 [2025-01-09 17:27:55,282 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-01-09 17:27:55,283 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-01-09 17:27:55,283 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-01-09 17:27:55,283 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-01-09 17:27:55,299 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:27:55" (1/1) ... [2025-01-09 17:27:55,299 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:27:55" (1/1) ... [2025-01-09 17:27:55,309 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:27:55" (1/1) ... [2025-01-09 17:27:55,386 INFO L175 MemorySlicer]: Split 335 memory accesses to 6 slices as follows [238, 2, 6, 79, 3, 7]. 71 percent of accesses are in the largest equivalence class. The 24 initializations are split as follows [6, 2, 0, 10, 1, 5]. The 252 writes are split as follows [232, 0, 2, 17, 1, 0]. [2025-01-09 17:27:55,386 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:27:55" (1/1) ... [2025-01-09 17:27:55,386 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:27:55" (1/1) ... [2025-01-09 17:27:55,436 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:27:55" (1/1) ... [2025-01-09 17:27:55,442 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:27:55" (1/1) ... [2025-01-09 17:27:55,449 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:27:55" (1/1) ... [2025-01-09 17:27:55,467 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:27:55" (1/1) ... [2025-01-09 17:27:55,474 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:27:55" (1/1) ... [2025-01-09 17:27:55,486 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-01-09 17:27:55,489 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-01-09 17:27:55,489 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-01-09 17:27:55,489 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-01-09 17:27:55,490 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:27:55" (1/1) ... [2025-01-09 17:27:55,496 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 17:27:55,509 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 17:27:55,524 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-01-09 17:27:55,529 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-01-09 17:27:55,552 INFO L130 BoogieDeclarations]: Found specification of procedure aws_is_mem_zeroed [2025-01-09 17:27:55,554 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_is_mem_zeroed [2025-01-09 17:27:55,554 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-01-09 17:27:55,554 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_bounded [2025-01-09 17:27:55,554 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_bounded [2025-01-09 17:27:55,554 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_valid [2025-01-09 17:27:55,554 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_valid [2025-01-09 17:27:55,554 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2025-01-09 17:27:55,554 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2025-01-09 17:27:55,554 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2025-01-09 17:27:55,555 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2025-01-09 17:27:55,555 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2025-01-09 17:27:55,555 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2025-01-09 17:27:55,555 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2025-01-09 17:27:55,555 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2025-01-09 17:27:55,555 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-01-09 17:27:55,555 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-01-09 17:27:55,555 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2025-01-09 17:27:55,555 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2025-01-09 17:27:55,555 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2025-01-09 17:27:55,555 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2025-01-09 17:27:55,556 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2025-01-09 17:27:55,556 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2025-01-09 17:27:55,556 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2025-01-09 17:27:55,556 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2025-01-09 17:27:55,558 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-01-09 17:27:55,558 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-01-09 17:27:55,558 INFO L130 BoogieDeclarations]: Found specification of procedure save_byte_from_array [2025-01-09 17:27:55,558 INFO L138 BoogieDeclarations]: Found implementation of procedure save_byte_from_array [2025-01-09 17:27:55,558 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2025-01-09 17:27:55,558 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2025-01-09 17:27:55,558 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2025-01-09 17:27:55,558 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2025-01-09 17:27:55,558 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2025-01-09 17:27:55,558 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2025-01-09 17:27:55,558 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-01-09 17:27:55,558 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-01-09 17:27:55,558 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2025-01-09 17:27:55,558 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2025-01-09 17:27:55,558 INFO L130 BoogieDeclarations]: Found specification of procedure assert_byte_from_buffer_matches [2025-01-09 17:27:55,558 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_byte_from_buffer_matches [2025-01-09 17:27:55,558 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_size_t [2025-01-09 17:27:55,558 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_size_t [2025-01-09 17:27:55,558 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2025-01-09 17:27:55,558 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2025-01-09 17:27:55,559 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2025-01-09 17:27:55,559 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2025-01-09 17:27:55,559 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2025-01-09 17:27:55,559 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2025-01-09 17:27:55,559 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2025-01-09 17:27:55,559 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2025-01-09 17:27:55,559 INFO L130 BoogieDeclarations]: Found specification of procedure aws_priority_queue_is_valid [2025-01-09 17:27:55,559 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_priority_queue_is_valid [2025-01-09 17:27:55,559 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_length [2025-01-09 17:27:55,559 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_length [2025-01-09 17:27:55,559 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2025-01-09 17:27:55,559 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2025-01-09 17:27:55,559 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-01-09 17:27:55,559 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2025-01-09 17:27:55,559 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2025-01-09 17:27:55,559 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2025-01-09 17:27:55,559 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2025-01-09 17:27:55,559 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2025-01-09 17:27:55,559 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2025-01-09 17:27:55,559 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2025-01-09 17:27:55,559 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2025-01-09 17:27:55,559 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2025-01-09 17:27:55,559 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2025-01-09 17:27:55,559 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2025-01-09 17:27:55,559 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2025-01-09 17:27:55,559 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2025-01-09 17:27:55,559 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2025-01-09 17:27:55,560 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2025-01-09 17:27:55,560 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2025-01-09 17:27:55,560 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-01-09 17:27:55,560 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-01-09 17:27:55,560 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2025-01-09 17:27:55,560 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2025-01-09 17:27:55,560 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2025-01-09 17:27:55,560 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2025-01-09 17:27:55,560 INFO L130 BoogieDeclarations]: Found specification of procedure assert_array_list_equivalence [2025-01-09 17:27:55,560 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_array_list_equivalence [2025-01-09 17:27:55,560 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_array_list_has_allocated_data_member [2025-01-09 17:27:55,560 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_array_list_has_allocated_data_member [2025-01-09 17:27:55,560 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-01-09 17:27:55,560 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-01-09 17:27:55,560 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-01-09 17:27:55,560 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2025-01-09 17:27:55,560 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2025-01-09 17:27:55,560 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2025-01-09 17:27:55,916 INFO L234 CfgBuilder]: Building ICFG [2025-01-09 17:27:55,920 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-01-09 17:28:01,901 INFO L? ?]: Removed 144 outVars from TransFormulas that were not future-live. [2025-01-09 17:28:01,901 INFO L283 CfgBuilder]: Performing block encoding [2025-01-09 17:28:01,916 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-01-09 17:28:01,916 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2025-01-09 17:28:01,917 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 05:28:01 BoogieIcfgContainer [2025-01-09 17:28:01,917 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-01-09 17:28:01,922 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-01-09 17:28:01,922 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-01-09 17:28:01,926 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-01-09 17:28:01,926 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.01 05:27:53" (1/3) ... [2025-01-09 17:28:01,928 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6529c404 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 05:28:01, skipping insertion in model container [2025-01-09 17:28:01,928 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:27:55" (2/3) ... [2025-01-09 17:28:01,929 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6529c404 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 05:28:01, skipping insertion in model container [2025-01-09 17:28:01,929 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 05:28:01" (3/3) ... [2025-01-09 17:28:01,930 INFO L128 eAbstractionObserver]: Analyzing ICFG aws_priority_queue_size_harness.i [2025-01-09 17:28:01,947 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-01-09 17:28:01,949 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG aws_priority_queue_size_harness.i that has 19 procedures, 185 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2025-01-09 17:28:02,015 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-01-09 17:28:02,025 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;@57db3135, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-01-09 17:28:02,025 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-01-09 17:28:02,030 INFO L276 IsEmpty]: Start isEmpty. Operand has 185 states, 119 states have (on average 1.2100840336134453) internal successors, (144), 120 states have internal predecessors, (144), 46 states have call successors, (46), 18 states have call predecessors, (46), 18 states have return successors, (46), 46 states have call predecessors, (46), 46 states have call successors, (46) [2025-01-09 17:28:02,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2025-01-09 17:28:02,047 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 17:28:02,048 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2025-01-09 17:28:02,049 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 17:28:02,054 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 17:28:02,056 INFO L85 PathProgramCache]: Analyzing trace with hash -1049880562, now seen corresponding path program 1 times [2025-01-09 17:28:02,065 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 17:28:02,066 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1144002248] [2025-01-09 17:28:02,066 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 17:28:02,066 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 17:28:07,154 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 137 statements into 1 equivalence classes. [2025-01-09 17:28:07,685 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 137 of 137 statements. [2025-01-09 17:28:07,685 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 17:28:07,685 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 17:28:08,295 INFO L134 CoverageAnalysis]: Checked inductivity of 128 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 118 trivial. 0 not checked. [2025-01-09 17:28:08,297 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 17:28:08,297 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1144002248] [2025-01-09 17:28:08,298 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1144002248] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 17:28:08,298 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1691625095] [2025-01-09 17:28:08,299 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 17:28:08,299 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 17:28:08,299 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 17:28:08,303 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-09 17:28:08,304 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-01-09 17:28:13,210 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 137 statements into 1 equivalence classes. [2025-01-09 17:28:13,862 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 137 of 137 statements. [2025-01-09 17:28:13,863 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 17:28:13,863 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 17:28:13,884 INFO L256 TraceCheckSpWp]: Trace formula consists of 4515 conjuncts, 1 conjuncts are in the unsatisfiable core [2025-01-09 17:28:13,895 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 17:28:13,920 INFO L134 CoverageAnalysis]: Checked inductivity of 128 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 118 trivial. 0 not checked. [2025-01-09 17:28:13,921 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 17:28:13,921 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1691625095] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 17:28:13,921 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-09 17:28:13,921 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2025-01-09 17:28:13,926 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1016118589] [2025-01-09 17:28:13,927 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 17:28:13,931 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-01-09 17:28:13,932 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 17:28:13,952 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-01-09 17:28:13,953 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-01-09 17:28:13,956 INFO L87 Difference]: Start difference. First operand has 185 states, 119 states have (on average 1.2100840336134453) internal successors, (144), 120 states have internal predecessors, (144), 46 states have call successors, (46), 18 states have call predecessors, (46), 18 states have return successors, (46), 46 states have call predecessors, (46), 46 states have call successors, (46) Second operand has 2 states, 2 states have (on average 25.0) internal successors, (50), 2 states have internal predecessors, (50), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2025-01-09 17:28:13,996 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 17:28:13,997 INFO L93 Difference]: Finished difference Result 347 states and 465 transitions. [2025-01-09 17:28:13,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-09 17:28:14,000 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 25.0) internal successors, (50), 2 states have internal predecessors, (50), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 137 [2025-01-09 17:28:14,000 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 17:28:14,009 INFO L225 Difference]: With dead ends: 347 [2025-01-09 17:28:14,010 INFO L226 Difference]: Without dead ends: 180 [2025-01-09 17:28:14,014 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 138 GetRequests, 138 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-01-09 17:28:14,018 INFO L435 NwaCegarLoop]: 234 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, 234 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-01-09 17:28:14,019 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 234 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 17:28:14,033 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 180 states. [2025-01-09 17:28:14,068 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 180 to 180. [2025-01-09 17:28:14,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 180 states, 115 states have (on average 1.2) internal successors, (138), 116 states have internal predecessors, (138), 46 states have call successors, (46), 18 states have call predecessors, (46), 18 states have return successors, (45), 45 states have call predecessors, (45), 45 states have call successors, (45) [2025-01-09 17:28:14,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 180 states to 180 states and 229 transitions. [2025-01-09 17:28:14,082 INFO L78 Accepts]: Start accepts. Automaton has 180 states and 229 transitions. Word has length 137 [2025-01-09 17:28:14,083 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 17:28:14,084 INFO L471 AbstractCegarLoop]: Abstraction has 180 states and 229 transitions. [2025-01-09 17:28:14,084 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 25.0) internal successors, (50), 2 states have internal predecessors, (50), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2025-01-09 17:28:14,085 INFO L276 IsEmpty]: Start isEmpty. Operand 180 states and 229 transitions. [2025-01-09 17:28:14,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2025-01-09 17:28:14,088 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 17:28:14,088 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2025-01-09 17:28:14,102 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2025-01-09 17:28:14,289 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2025-01-09 17:28:14,289 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 17:28:14,291 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 17:28:14,291 INFO L85 PathProgramCache]: Analyzing trace with hash -1025135922, now seen corresponding path program 1 times [2025-01-09 17:28:14,291 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 17:28:14,291 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2125948471] [2025-01-09 17:28:14,291 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 17:28:14,291 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 17:28:19,082 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 137 statements into 1 equivalence classes. [2025-01-09 17:28:19,273 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 137 of 137 statements. [2025-01-09 17:28:19,275 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 17:28:19,275 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 17:28:20,603 INFO L134 CoverageAnalysis]: Checked inductivity of 128 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 128 trivial. 0 not checked. [2025-01-09 17:28:20,605 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 17:28:20,605 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2125948471] [2025-01-09 17:28:20,605 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2125948471] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 17:28:20,605 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 17:28:20,605 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-01-09 17:28:20,605 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1023029403] [2025-01-09 17:28:20,606 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 17:28:20,606 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-01-09 17:28:20,607 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 17:28:20,608 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-01-09 17:28:20,608 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-01-09 17:28:20,609 INFO L87 Difference]: Start difference. First operand 180 states and 229 transitions. Second operand has 5 states, 5 states have (on average 9.6) internal successors, (48), 5 states have internal predecessors, (48), 3 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) [2025-01-09 17:28:21,123 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 17:28:21,123 INFO L93 Difference]: Finished difference Result 306 states and 389 transitions. [2025-01-09 17:28:21,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-09 17:28:21,125 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 5 states have internal predecessors, (48), 3 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) Word has length 137 [2025-01-09 17:28:21,125 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 17:28:21,127 INFO L225 Difference]: With dead ends: 306 [2025-01-09 17:28:21,127 INFO L226 Difference]: Without dead ends: 180 [2025-01-09 17:28:21,128 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-01-09 17:28:21,131 INFO L435 NwaCegarLoop]: 216 mSDtfsCounter, 7 mSDsluCounter, 612 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 828 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2025-01-09 17:28:21,131 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 828 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2025-01-09 17:28:21,132 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 180 states. [2025-01-09 17:28:21,148 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 180 to 180. [2025-01-09 17:28:21,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 180 states, 115 states have (on average 1.191304347826087) internal successors, (137), 116 states have internal predecessors, (137), 46 states have call successors, (46), 18 states have call predecessors, (46), 18 states have return successors, (45), 45 states have call predecessors, (45), 45 states have call successors, (45) [2025-01-09 17:28:21,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 180 states to 180 states and 228 transitions. [2025-01-09 17:28:21,151 INFO L78 Accepts]: Start accepts. Automaton has 180 states and 228 transitions. Word has length 137 [2025-01-09 17:28:21,151 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 17:28:21,151 INFO L471 AbstractCegarLoop]: Abstraction has 180 states and 228 transitions. [2025-01-09 17:28:21,152 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 5 states have internal predecessors, (48), 3 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) [2025-01-09 17:28:21,152 INFO L276 IsEmpty]: Start isEmpty. Operand 180 states and 228 transitions. [2025-01-09 17:28:21,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2025-01-09 17:28:21,154 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 17:28:21,154 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2025-01-09 17:28:21,155 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-01-09 17:28:21,155 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 17:28:21,155 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 17:28:21,155 INFO L85 PathProgramCache]: Analyzing trace with hash 1838455364, now seen corresponding path program 1 times [2025-01-09 17:28:21,155 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 17:28:21,156 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1110950553] [2025-01-09 17:28:21,156 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 17:28:21,156 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 17:28:25,107 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 145 statements into 1 equivalence classes. [2025-01-09 17:28:25,268 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 145 of 145 statements. [2025-01-09 17:28:25,268 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 17:28:25,268 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 17:28:26,837 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 130 trivial. 0 not checked. [2025-01-09 17:28:26,838 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 17:28:26,838 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1110950553] [2025-01-09 17:28:26,838 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1110950553] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 17:28:26,838 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [212833479] [2025-01-09 17:28:26,838 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 17:28:26,838 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 17:28:26,838 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 17:28:26,841 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-09 17:28:26,843 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-01-09 17:28:30,980 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 145 statements into 1 equivalence classes. [2025-01-09 17:28:31,630 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 145 of 145 statements. [2025-01-09 17:28:31,630 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 17:28:31,630 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 17:28:31,654 INFO L256 TraceCheckSpWp]: Trace formula consists of 4565 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-01-09 17:28:31,662 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 17:28:33,266 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2025-01-09 17:28:33,266 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 17:28:33,266 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [212833479] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 17:28:33,266 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-09 17:28:33,267 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [7] total 12 [2025-01-09 17:28:33,267 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1650053752] [2025-01-09 17:28:33,267 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 17:28:33,268 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-01-09 17:28:33,268 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 17:28:33,268 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-01-09 17:28:33,268 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2025-01-09 17:28:33,269 INFO L87 Difference]: Start difference. First operand 180 states and 228 transitions. Second operand has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 4 states have call successors, (24), 2 states have call predecessors, (24), 4 states have return successors, (22), 4 states have call predecessors, (22), 4 states have call successors, (22) [2025-01-09 17:28:34,936 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 17:28:34,939 INFO L93 Difference]: Finished difference Result 325 states and 418 transitions. [2025-01-09 17:28:34,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-01-09 17:28:34,940 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 4 states have call successors, (24), 2 states have call predecessors, (24), 4 states have return successors, (22), 4 states have call predecessors, (22), 4 states have call successors, (22) Word has length 145 [2025-01-09 17:28:34,941 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 17:28:34,948 INFO L225 Difference]: With dead ends: 325 [2025-01-09 17:28:34,948 INFO L226 Difference]: Without dead ends: 182 [2025-01-09 17:28:34,949 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 152 GetRequests, 141 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=25, Invalid=131, Unknown=0, NotChecked=0, Total=156 [2025-01-09 17:28:34,950 INFO L435 NwaCegarLoop]: 205 mSDtfsCounter, 34 mSDsluCounter, 973 mSDsCounter, 0 mSdLazyCounter, 136 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 1178 SdHoareTripleChecker+Invalid, 137 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 136 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2025-01-09 17:28:34,951 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 1178 Invalid, 137 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 136 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2025-01-09 17:28:34,951 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 182 states. [2025-01-09 17:28:34,963 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 182 to 182. [2025-01-09 17:28:34,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 182 states, 116 states have (on average 1.1896551724137931) internal successors, (138), 118 states have internal predecessors, (138), 46 states have call successors, (46), 18 states have call predecessors, (46), 19 states have return successors, (48), 45 states have call predecessors, (48), 45 states have call successors, (48) [2025-01-09 17:28:34,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 232 transitions. [2025-01-09 17:28:34,966 INFO L78 Accepts]: Start accepts. Automaton has 182 states and 232 transitions. Word has length 145 [2025-01-09 17:28:34,966 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 17:28:34,966 INFO L471 AbstractCegarLoop]: Abstraction has 182 states and 232 transitions. [2025-01-09 17:28:34,966 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 4 states have call successors, (24), 2 states have call predecessors, (24), 4 states have return successors, (22), 4 states have call predecessors, (22), 4 states have call successors, (22) [2025-01-09 17:28:34,967 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 232 transitions. [2025-01-09 17:28:34,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2025-01-09 17:28:34,969 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 17:28:34,969 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 17:28:34,987 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2025-01-09 17:28:35,169 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 17:28:35,170 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 17:28:35,170 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 17:28:35,170 INFO L85 PathProgramCache]: Analyzing trace with hash 374527140, now seen corresponding path program 1 times [2025-01-09 17:28:35,170 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 17:28:35,171 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1575274527] [2025-01-09 17:28:35,171 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 17:28:35,171 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 17:28:38,780 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 160 statements into 1 equivalence classes. [2025-01-09 17:28:38,927 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 160 of 160 statements. [2025-01-09 17:28:38,928 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 17:28:38,928 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 17:28:40,656 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2025-01-09 17:28:40,657 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 17:28:40,657 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1575274527] [2025-01-09 17:28:40,658 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1575274527] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 17:28:40,658 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 17:28:40,658 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-01-09 17:28:40,658 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2065148560] [2025-01-09 17:28:40,658 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 17:28:40,658 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-01-09 17:28:40,659 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 17:28:40,659 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-01-09 17:28:40,660 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-01-09 17:28:40,661 INFO L87 Difference]: Start difference. First operand 182 states and 232 transitions. Second operand has 6 states, 6 states have (on average 10.5) internal successors, (63), 6 states have internal predecessors, (63), 4 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (24), 4 states have call predecessors, (24), 4 states have call successors, (24) [2025-01-09 17:28:42,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 17:28:42,021 INFO L93 Difference]: Finished difference Result 311 states and 396 transitions. [2025-01-09 17:28:42,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-01-09 17:28:42,022 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.5) internal successors, (63), 6 states have internal predecessors, (63), 4 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (24), 4 states have call predecessors, (24), 4 states have call successors, (24) Word has length 160 [2025-01-09 17:28:42,024 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 17:28:42,026 INFO L225 Difference]: With dead ends: 311 [2025-01-09 17:28:42,027 INFO L226 Difference]: Without dead ends: 182 [2025-01-09 17:28:42,028 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-01-09 17:28:42,028 INFO L435 NwaCegarLoop]: 210 mSDtfsCounter, 24 mSDsluCounter, 779 mSDsCounter, 0 mSdLazyCounter, 92 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 989 SdHoareTripleChecker+Invalid, 93 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 92 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2025-01-09 17:28:42,029 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 989 Invalid, 93 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 92 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2025-01-09 17:28:42,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 182 states. [2025-01-09 17:28:42,039 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 182 to 182. [2025-01-09 17:28:42,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 182 states, 116 states have (on average 1.1810344827586208) internal successors, (137), 118 states have internal predecessors, (137), 46 states have call successors, (46), 18 states have call predecessors, (46), 19 states have return successors, (48), 45 states have call predecessors, (48), 45 states have call successors, (48) [2025-01-09 17:28:42,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 231 transitions. [2025-01-09 17:28:42,042 INFO L78 Accepts]: Start accepts. Automaton has 182 states and 231 transitions. Word has length 160 [2025-01-09 17:28:42,042 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 17:28:42,042 INFO L471 AbstractCegarLoop]: Abstraction has 182 states and 231 transitions. [2025-01-09 17:28:42,042 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.5) internal successors, (63), 6 states have internal predecessors, (63), 4 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (24), 4 states have call predecessors, (24), 4 states have call successors, (24) [2025-01-09 17:28:42,043 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 231 transitions. [2025-01-09 17:28:42,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2025-01-09 17:28:42,047 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 17:28:42,048 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 17:28:42,048 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-01-09 17:28:42,048 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 17:28:42,048 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 17:28:42,048 INFO L85 PathProgramCache]: Analyzing trace with hash -1568475205, now seen corresponding path program 1 times [2025-01-09 17:28:42,048 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 17:28:42,048 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1726998140] [2025-01-09 17:28:42,049 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 17:28:42,049 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 17:28:45,716 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 176 statements into 1 equivalence classes. [2025-01-09 17:28:45,874 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 176 of 176 statements. [2025-01-09 17:28:45,875 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 17:28:45,875 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 17:28:47,980 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 139 trivial. 0 not checked. [2025-01-09 17:28:47,981 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 17:28:47,981 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1726998140] [2025-01-09 17:28:47,981 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1726998140] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 17:28:47,981 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [995612201] [2025-01-09 17:28:47,981 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 17:28:47,981 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 17:28:47,981 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 17:28:47,983 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-09 17:28:47,985 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2025-01-09 17:28:52,409 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 176 statements into 1 equivalence classes. [2025-01-09 17:28:52,896 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 176 of 176 statements. [2025-01-09 17:28:52,896 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 17:28:52,896 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 17:28:52,915 INFO L256 TraceCheckSpWp]: Trace formula consists of 4759 conjuncts, 8 conjuncts are in the unsatisfiable core [2025-01-09 17:28:52,922 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 17:28:55,009 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 55 proven. 0 refuted. 0 times theorem prover too weak. 93 trivial. 0 not checked. [2025-01-09 17:28:55,009 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 17:28:55,009 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [995612201] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 17:28:55,009 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-09 17:28:55,010 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [8] total 14 [2025-01-09 17:28:55,010 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [88030545] [2025-01-09 17:28:55,010 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 17:28:55,010 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-01-09 17:28:55,010 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 17:28:55,011 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-01-09 17:28:55,011 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=157, Unknown=0, NotChecked=0, Total=182 [2025-01-09 17:28:55,011 INFO L87 Difference]: Start difference. First operand 182 states and 231 transitions. Second operand has 8 states, 8 states have (on average 10.25) internal successors, (82), 8 states have internal predecessors, (82), 5 states have call successors, (27), 2 states have call predecessors, (27), 4 states have return successors, (25), 5 states have call predecessors, (25), 5 states have call successors, (25) [2025-01-09 17:28:56,933 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 17:28:56,934 INFO L93 Difference]: Finished difference Result 324 states and 413 transitions. [2025-01-09 17:28:56,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-01-09 17:28:56,935 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.25) internal successors, (82), 8 states have internal predecessors, (82), 5 states have call successors, (27), 2 states have call predecessors, (27), 4 states have return successors, (25), 5 states have call predecessors, (25), 5 states have call successors, (25) Word has length 176 [2025-01-09 17:28:56,935 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 17:28:56,936 INFO L225 Difference]: With dead ends: 324 [2025-01-09 17:28:56,937 INFO L226 Difference]: Without dead ends: 182 [2025-01-09 17:28:56,937 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 184 GetRequests, 171 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=29, Invalid=181, Unknown=0, NotChecked=0, Total=210 [2025-01-09 17:28:56,939 INFO L435 NwaCegarLoop]: 199 mSDtfsCounter, 56 mSDsluCounter, 1121 mSDsCounter, 0 mSdLazyCounter, 194 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 1320 SdHoareTripleChecker+Invalid, 197 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 194 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2025-01-09 17:28:56,939 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [68 Valid, 1320 Invalid, 197 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 194 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2025-01-09 17:28:56,940 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 182 states. [2025-01-09 17:28:56,952 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 182 to 182. [2025-01-09 17:28:56,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 182 states, 116 states have (on average 1.1810344827586208) internal successors, (137), 118 states have internal predecessors, (137), 46 states have call successors, (46), 18 states have call predecessors, (46), 19 states have return successors, (47), 45 states have call predecessors, (47), 45 states have call successors, (47) [2025-01-09 17:28:56,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 230 transitions. [2025-01-09 17:28:56,958 INFO L78 Accepts]: Start accepts. Automaton has 182 states and 230 transitions. Word has length 176 [2025-01-09 17:28:56,958 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 17:28:56,960 INFO L471 AbstractCegarLoop]: Abstraction has 182 states and 230 transitions. [2025-01-09 17:28:56,960 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.25) internal successors, (82), 8 states have internal predecessors, (82), 5 states have call successors, (27), 2 states have call predecessors, (27), 4 states have return successors, (25), 5 states have call predecessors, (25), 5 states have call successors, (25) [2025-01-09 17:28:56,960 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 230 transitions. [2025-01-09 17:28:56,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2025-01-09 17:28:56,962 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 17:28:56,962 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 17:28:56,983 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2025-01-09 17:28:57,163 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 17:28:57,163 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 17:28:57,163 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 17:28:57,164 INFO L85 PathProgramCache]: Analyzing trace with hash -1652898951, now seen corresponding path program 2 times [2025-01-09 17:28:57,164 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 17:28:57,164 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [908260707] [2025-01-09 17:28:57,164 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-01-09 17:28:57,164 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 17:29:00,840 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 191 statements into 2 equivalence classes. [2025-01-09 17:29:01,539 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 191 of 191 statements. [2025-01-09 17:29:01,539 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-01-09 17:29:01,539 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 17:29:03,499 INFO L134 CoverageAnalysis]: Checked inductivity of 163 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 154 trivial. 0 not checked. [2025-01-09 17:29:03,499 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 17:29:03,499 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [908260707] [2025-01-09 17:29:03,499 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [908260707] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 17:29:03,499 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 17:29:03,499 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2025-01-09 17:29:03,499 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [640643303] [2025-01-09 17:29:03,499 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 17:29:03,499 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-01-09 17:29:03,500 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 17:29:03,500 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-01-09 17:29:03,500 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2025-01-09 17:29:03,500 INFO L87 Difference]: Start difference. First operand 182 states and 230 transitions. Second operand has 8 states, 7 states have (on average 11.0) internal successors, (77), 7 states have internal predecessors, (77), 5 states have call successors, (27), 3 states have call predecessors, (27), 2 states have return successors, (25), 4 states have call predecessors, (25), 3 states have call successors, (25) [2025-01-09 17:29:05,018 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 17:29:05,020 INFO L93 Difference]: Finished difference Result 285 states and 357 transitions. [2025-01-09 17:29:05,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-01-09 17:29:05,021 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 11.0) internal successors, (77), 7 states have internal predecessors, (77), 5 states have call successors, (27), 3 states have call predecessors, (27), 2 states have return successors, (25), 4 states have call predecessors, (25), 3 states have call successors, (25) Word has length 191 [2025-01-09 17:29:05,021 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 17:29:05,023 INFO L225 Difference]: With dead ends: 285 [2025-01-09 17:29:05,023 INFO L226 Difference]: Without dead ends: 180 [2025-01-09 17:29:05,024 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2025-01-09 17:29:05,025 INFO L435 NwaCegarLoop]: 206 mSDtfsCounter, 25 mSDsluCounter, 1171 mSDsCounter, 0 mSdLazyCounter, 133 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 1377 SdHoareTripleChecker+Invalid, 143 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 133 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2025-01-09 17:29:05,026 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 1377 Invalid, 143 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 133 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2025-01-09 17:29:05,027 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 180 states. [2025-01-09 17:29:05,038 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 180 to 180. [2025-01-09 17:29:05,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 180 states, 115 states have (on average 1.173913043478261) internal successors, (135), 116 states have internal predecessors, (135), 46 states have call successors, (46), 18 states have call predecessors, (46), 18 states have return successors, (45), 45 states have call predecessors, (45), 45 states have call successors, (45) [2025-01-09 17:29:05,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 180 states to 180 states and 226 transitions. [2025-01-09 17:29:05,040 INFO L78 Accepts]: Start accepts. Automaton has 180 states and 226 transitions. Word has length 191 [2025-01-09 17:29:05,041 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 17:29:05,041 INFO L471 AbstractCegarLoop]: Abstraction has 180 states and 226 transitions. [2025-01-09 17:29:05,041 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 11.0) internal successors, (77), 7 states have internal predecessors, (77), 5 states have call successors, (27), 3 states have call predecessors, (27), 2 states have return successors, (25), 4 states have call predecessors, (25), 3 states have call successors, (25) [2025-01-09 17:29:05,043 INFO L276 IsEmpty]: Start isEmpty. Operand 180 states and 226 transitions. [2025-01-09 17:29:05,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 222 [2025-01-09 17:29:05,045 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 17:29:05,045 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 17:29:05,045 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-01-09 17:29:05,046 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 17:29:05,046 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 17:29:05,046 INFO L85 PathProgramCache]: Analyzing trace with hash -648852555, now seen corresponding path program 1 times [2025-01-09 17:29:05,046 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 17:29:05,046 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1710212371] [2025-01-09 17:29:05,046 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 17:29:05,046 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 17:29:08,635 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 221 statements into 1 equivalence classes. [2025-01-09 17:29:12,395 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 221 of 221 statements. [2025-01-09 17:29:12,395 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 17:29:12,395 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat