./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/aws-c-common/aws_priority_queue_init_dynamic_harness_negated.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_init_dynamic_harness_negated.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 175c9418701070e8128f8ed008fd30685ed8c019e1010acc82e904c5730ef842 --- Real Ultimate output --- This is Ultimate 0.3.0-?-551b009-m [2025-01-09 17:25:12,872 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-01-09 17:25:12,937 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2025-01-09 17:25:12,943 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-01-09 17:25:12,945 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-01-09 17:25:12,967 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-01-09 17:25:12,967 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-01-09 17:25:12,967 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-01-09 17:25:12,968 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-01-09 17:25:12,968 INFO L153 SettingsManager]: * Use memory slicer=true [2025-01-09 17:25:12,968 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-01-09 17:25:12,968 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-01-09 17:25:12,968 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-01-09 17:25:12,968 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-01-09 17:25:12,969 INFO L153 SettingsManager]: * Use SBE=true [2025-01-09 17:25:12,970 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-01-09 17:25:12,970 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-01-09 17:25:12,970 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-01-09 17:25:12,970 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-01-09 17:25:12,970 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-01-09 17:25:12,970 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-01-09 17:25:12,970 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-01-09 17:25:12,970 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-01-09 17:25:12,970 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-01-09 17:25:12,970 INFO L153 SettingsManager]: * Use constant arrays=true [2025-01-09 17:25:12,970 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-01-09 17:25:12,971 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 17:25:12,971 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-09 17:25:12,971 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 17:25:12,971 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 17:25:12,971 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-01-09 17:25:12,971 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 17:25:12,971 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-09 17:25:12,971 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 17:25:12,971 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 17:25:12,972 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-01-09 17:25:12,972 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-01-09 17:25:12,972 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-01-09 17:25:12,972 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-01-09 17:25:12,972 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-01-09 17:25:12,972 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-01-09 17:25:12,972 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-01-09 17:25:12,972 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-01-09 17:25:12,972 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-01-09 17:25:12,972 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-01-09 17:25:12,972 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 -> 175c9418701070e8128f8ed008fd30685ed8c019e1010acc82e904c5730ef842 [2025-01-09 17:25:13,236 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-01-09 17:25:13,243 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-01-09 17:25:13,244 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-01-09 17:25:13,245 INFO L270 PluginConnector]: Initializing CDTParser... [2025-01-09 17:25:13,246 INFO L274 PluginConnector]: CDTParser initialized [2025-01-09 17:25:13,247 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_priority_queue_init_dynamic_harness_negated.i [2025-01-09 17:25:14,454 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/30c273395/37ce3e5cc1c64dbcbec1a69b2f80925f/FLAG27315409c [2025-01-09 17:25:14,807 INFO L384 CDTParser]: Found 1 translation units. [2025-01-09 17:25:14,809 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_priority_queue_init_dynamic_harness_negated.i [2025-01-09 17:25:14,837 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/30c273395/37ce3e5cc1c64dbcbec1a69b2f80925f/FLAG27315409c [2025-01-09 17:25:14,850 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/30c273395/37ce3e5cc1c64dbcbec1a69b2f80925f [2025-01-09 17:25:14,853 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-01-09 17:25:14,853 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-01-09 17:25:14,855 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-01-09 17:25:14,855 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-01-09 17:25:14,859 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-01-09 17:25:14,859 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 05:25:14" (1/1) ... [2025-01-09 17:25:14,860 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@297bda77 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:25:14, skipping insertion in model container [2025-01-09 17:25:14,860 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 05:25:14" (1/1) ... [2025-01-09 17:25:14,911 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-01-09 17:25:15,058 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_init_dynamic_harness_negated.i[4505,4518] [2025-01-09 17:25:15,063 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_init_dynamic_harness_negated.i[4565,4578] [2025-01-09 17:25:15,492 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:25:15,493 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:25:15,493 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:25:15,494 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:25:15,494 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:25:15,506 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:25:15,508 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:25:15,509 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:25:15,509 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:25:15,776 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:25:15,779 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:25:15,826 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 17:25:15,845 INFO L200 MainTranslator]: Completed pre-run [2025-01-09 17:25:15,854 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_init_dynamic_harness_negated.i[4505,4518] [2025-01-09 17:25:15,855 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_init_dynamic_harness_negated.i[4565,4578] [2025-01-09 17:25:15,911 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:25:15,912 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:25:15,912 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:25:15,912 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:25:15,913 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:25:15,919 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:25:15,919 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:25:15,920 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:25:15,921 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:25:16,000 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:25:16,000 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:25:16,008 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [7671-7682] [2025-01-09 17:25:16,026 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 17:25:16,214 INFO L204 MainTranslator]: Completed translation [2025-01-09 17:25:16,214 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:25:16 WrapperNode [2025-01-09 17:25:16,215 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-01-09 17:25:16,216 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-01-09 17:25:16,216 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-01-09 17:25:16,216 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-01-09 17:25:16,221 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:25:16" (1/1) ... [2025-01-09 17:25:16,279 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:25:16" (1/1) ... [2025-01-09 17:25:16,359 INFO L138 Inliner]: procedures = 678, calls = 1530, calls flagged for inlining = 52, calls inlined = 9, statements flattened = 763 [2025-01-09 17:25:16,359 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-01-09 17:25:16,360 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-01-09 17:25:16,360 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-01-09 17:25:16,360 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-01-09 17:25:16,366 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:25:16" (1/1) ... [2025-01-09 17:25:16,369 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:25:16" (1/1) ... [2025-01-09 17:25:16,375 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:25:16" (1/1) ... [2025-01-09 17:25:16,434 INFO L175 MemorySlicer]: Split 301 memory accesses to 5 slices as follows [2, 238, 8, 48, 5]. 79 percent of accesses are in the largest equivalence class. The 15 initializations are split as follows [2, 6, 2, 0, 5]. The 252 writes are split as follows [0, 232, 1, 19, 0]. [2025-01-09 17:25:16,435 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:25:16" (1/1) ... [2025-01-09 17:25:16,435 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:25:16" (1/1) ... [2025-01-09 17:25:16,471 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:25:16" (1/1) ... [2025-01-09 17:25:16,472 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:25:16" (1/1) ... [2025-01-09 17:25:16,475 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:25:16" (1/1) ... [2025-01-09 17:25:16,487 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:25:16" (1/1) ... [2025-01-09 17:25:16,489 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:25:16" (1/1) ... [2025-01-09 17:25:16,502 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-01-09 17:25:16,502 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-01-09 17:25:16,502 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-01-09 17:25:16,502 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-01-09 17:25:16,505 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:25:16" (1/1) ... [2025-01-09 17:25:16,508 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 17:25:16,517 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 17:25:16,529 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 17:25:16,531 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 17:25:16,548 INFO L130 BoogieDeclarations]: Found specification of procedure aws_is_mem_zeroed [2025-01-09 17:25:16,548 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_is_mem_zeroed [2025-01-09 17:25:16,548 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-01-09 17:25:16,548 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_valid [2025-01-09 17:25:16,548 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_valid [2025-01-09 17:25:16,548 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2025-01-09 17:25:16,548 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2025-01-09 17:25:16,548 INFO L130 BoogieDeclarations]: Found specification of procedure aws_allocator_is_valid [2025-01-09 17:25:16,548 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_allocator_is_valid [2025-01-09 17:25:16,548 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2025-01-09 17:25:16,548 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2025-01-09 17:25:16,548 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2025-01-09 17:25:16,548 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2025-01-09 17:25:16,548 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2025-01-09 17:25:16,548 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-01-09 17:25:16,548 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-01-09 17:25:16,548 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2025-01-09 17:25:16,548 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2025-01-09 17:25:16,548 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2025-01-09 17:25:16,548 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2025-01-09 17:25:16,548 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2025-01-09 17:25:16,548 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2025-01-09 17:25:16,548 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2025-01-09 17:25:16,548 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-01-09 17:25:16,548 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-01-09 17:25:16,548 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2025-01-09 17:25:16,548 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2025-01-09 17:25:16,548 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2025-01-09 17:25:16,548 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2025-01-09 17:25:16,548 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2025-01-09 17:25:16,548 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-01-09 17:25:16,549 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-01-09 17:25:16,549 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2025-01-09 17:25:16,549 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2025-01-09 17:25:16,549 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_size_t [2025-01-09 17:25:16,549 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_size_t [2025-01-09 17:25:16,549 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2025-01-09 17:25:16,549 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2025-01-09 17:25:16,549 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2025-01-09 17:25:16,549 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2025-01-09 17:25:16,549 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2025-01-09 17:25:16,549 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2025-01-09 17:25:16,549 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2025-01-09 17:25:16,549 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_malloc [2025-01-09 17:25:16,549 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_malloc [2025-01-09 17:25:16,549 INFO L130 BoogieDeclarations]: Found specification of procedure aws_priority_queue_is_valid [2025-01-09 17:25:16,549 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_priority_queue_is_valid [2025-01-09 17:25:16,549 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2025-01-09 17:25:16,549 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2025-01-09 17:25:16,549 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-01-09 17:25:16,549 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2025-01-09 17:25:16,549 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2025-01-09 17:25:16,549 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2025-01-09 17:25:16,549 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2025-01-09 17:25:16,549 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2025-01-09 17:25:16,549 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2025-01-09 17:25:16,549 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2025-01-09 17:25:16,549 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2025-01-09 17:25:16,549 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2025-01-09 17:25:16,549 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2025-01-09 17:25:16,549 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2025-01-09 17:25:16,549 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2025-01-09 17:25:16,549 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2025-01-09 17:25:16,549 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2025-01-09 17:25:16,549 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-01-09 17:25:16,552 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-01-09 17:25:16,552 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2025-01-09 17:25:16,552 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2025-01-09 17:25:16,552 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2025-01-09 17:25:16,552 INFO L130 BoogieDeclarations]: Found specification of procedure memset_impl [2025-01-09 17:25:16,552 INFO L138 BoogieDeclarations]: Found implementation of procedure memset_impl [2025-01-09 17:25:16,553 INFO L130 BoogieDeclarations]: Found specification of procedure my_memset [2025-01-09 17:25:16,553 INFO L138 BoogieDeclarations]: Found implementation of procedure my_memset [2025-01-09 17:25:16,553 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-01-09 17:25:16,553 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-01-09 17:25:16,553 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-01-09 17:25:16,553 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2025-01-09 17:25:16,553 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2025-01-09 17:25:16,801 INFO L234 CfgBuilder]: Building ICFG [2025-01-09 17:25:16,804 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-01-09 17:25:22,709 INFO L? ?]: Removed 150 outVars from TransFormulas that were not future-live. [2025-01-09 17:25:22,710 INFO L283 CfgBuilder]: Performing block encoding [2025-01-09 17:25:22,718 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-01-09 17:25:22,719 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2025-01-09 17:25:22,719 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 05:25:22 BoogieIcfgContainer [2025-01-09 17:25:22,719 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-01-09 17:25:22,721 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-01-09 17:25:22,721 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-01-09 17:25:22,725 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-01-09 17:25:22,725 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.01 05:25:14" (1/3) ... [2025-01-09 17:25:22,725 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d6073de and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 05:25:22, skipping insertion in model container [2025-01-09 17:25:22,725 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:25:16" (2/3) ... [2025-01-09 17:25:22,727 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d6073de and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 05:25:22, skipping insertion in model container [2025-01-09 17:25:22,727 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 05:25:22" (3/3) ... [2025-01-09 17:25:22,728 INFO L128 eAbstractionObserver]: Analyzing ICFG aws_priority_queue_init_dynamic_harness_negated.i [2025-01-09 17:25:22,739 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-01-09 17:25:22,740 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG aws_priority_queue_init_dynamic_harness_negated.i that has 17 procedures, 215 locations, 1 initial locations, 4 loop locations, and 1 error locations. [2025-01-09 17:25:22,788 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-01-09 17:25:22,799 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;@65f125c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-01-09 17:25:22,800 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-01-09 17:25:22,803 INFO L276 IsEmpty]: Start isEmpty. Operand has 215 states, 137 states have (on average 1.2335766423357664) internal successors, (169), 137 states have internal predecessors, (169), 62 states have call successors, (62), 16 states have call predecessors, (62), 16 states have return successors, (62), 62 states have call predecessors, (62), 62 states have call successors, (62) [2025-01-09 17:25:22,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2025-01-09 17:25:22,814 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 17:25:22,815 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 9, 9, 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] [2025-01-09 17:25:22,815 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 17:25:22,819 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 17:25:22,819 INFO L85 PathProgramCache]: Analyzing trace with hash -712989929, now seen corresponding path program 1 times [2025-01-09 17:25:22,824 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 17:25:22,825 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [450304935] [2025-01-09 17:25:22,825 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 17:25:22,825 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 17:25:27,359 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 144 statements into 1 equivalence classes. [2025-01-09 17:25:27,661 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 144 of 144 statements. [2025-01-09 17:25:27,662 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 17:25:27,662 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 17:25:28,090 INFO L134 CoverageAnalysis]: Checked inductivity of 297 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 279 trivial. 0 not checked. [2025-01-09 17:25:28,091 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 17:25:28,091 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [450304935] [2025-01-09 17:25:28,091 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [450304935] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 17:25:28,091 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1810040211] [2025-01-09 17:25:28,091 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 17:25:28,091 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 17:25:28,091 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 17:25:28,096 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 17:25:28,097 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 17:25:32,402 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 144 statements into 1 equivalence classes. [2025-01-09 17:25:32,925 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 144 of 144 statements. [2025-01-09 17:25:32,926 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 17:25:32,926 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 17:25:32,949 INFO L256 TraceCheckSpWp]: Trace formula consists of 4413 conjuncts, 1 conjuncts are in the unsatisfiable core [2025-01-09 17:25:32,961 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 17:25:32,979 INFO L134 CoverageAnalysis]: Checked inductivity of 297 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 279 trivial. 0 not checked. [2025-01-09 17:25:32,980 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 17:25:32,980 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1810040211] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 17:25:32,980 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-09 17:25:32,980 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2025-01-09 17:25:32,982 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1799342729] [2025-01-09 17:25:32,982 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 17:25:32,985 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-01-09 17:25:32,985 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 17:25:32,998 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-01-09 17:25:32,999 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-01-09 17:25:33,002 INFO L87 Difference]: Start difference. First operand has 215 states, 137 states have (on average 1.2335766423357664) internal successors, (169), 137 states have internal predecessors, (169), 62 states have call successors, (62), 16 states have call predecessors, (62), 16 states have return successors, (62), 62 states have call predecessors, (62), 62 states have call successors, (62) Second operand has 2 states, 2 states have (on average 23.0) internal successors, (46), 2 states have internal predecessors, (46), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2025-01-09 17:25:33,040 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 17:25:33,041 INFO L93 Difference]: Finished difference Result 404 states and 582 transitions. [2025-01-09 17:25:33,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-09 17:25:33,043 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 23.0) internal successors, (46), 2 states have internal predecessors, (46), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) Word has length 144 [2025-01-09 17:25:33,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 17:25:33,054 INFO L225 Difference]: With dead ends: 404 [2025-01-09 17:25:33,055 INFO L226 Difference]: Without dead ends: 208 [2025-01-09 17:25:33,059 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 145 GetRequests, 145 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 17:25:33,065 INFO L435 NwaCegarLoop]: 287 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, 287 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 17:25:33,067 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 287 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 17:25:33,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 208 states. [2025-01-09 17:25:33,110 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 208 to 208. [2025-01-09 17:25:33,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 208 states, 129 states have (on average 1.2170542635658914) internal successors, (157), 131 states have internal predecessors, (157), 62 states have call successors, (62), 16 states have call predecessors, (62), 16 states have return successors, (60), 60 states have call predecessors, (60), 60 states have call successors, (60) [2025-01-09 17:25:33,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 208 states to 208 states and 279 transitions. [2025-01-09 17:25:33,120 INFO L78 Accepts]: Start accepts. Automaton has 208 states and 279 transitions. Word has length 144 [2025-01-09 17:25:33,121 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 17:25:33,121 INFO L471 AbstractCegarLoop]: Abstraction has 208 states and 279 transitions. [2025-01-09 17:25:33,121 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 23.0) internal successors, (46), 2 states have internal predecessors, (46), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2025-01-09 17:25:33,122 INFO L276 IsEmpty]: Start isEmpty. Operand 208 states and 279 transitions. [2025-01-09 17:25:33,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2025-01-09 17:25:33,123 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 17:25:33,124 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 9, 9, 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, 1] [2025-01-09 17:25:33,139 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 17:25:33,325 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 17:25:33,326 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 17:25:33,326 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 17:25:33,326 INFO L85 PathProgramCache]: Analyzing trace with hash -1467955177, now seen corresponding path program 1 times [2025-01-09 17:25:33,326 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 17:25:33,326 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [210288377] [2025-01-09 17:25:33,326 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 17:25:33,326 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 17:25:37,342 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 178 statements into 1 equivalence classes. [2025-01-09 17:25:37,542 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 178 of 178 statements. [2025-01-09 17:25:37,543 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 17:25:37,543 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 17:25:39,108 INFO L134 CoverageAnalysis]: Checked inductivity of 392 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 383 trivial. 0 not checked. [2025-01-09 17:25:39,108 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 17:25:39,108 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [210288377] [2025-01-09 17:25:39,109 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [210288377] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 17:25:39,109 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1134435523] [2025-01-09 17:25:39,109 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 17:25:39,109 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 17:25:39,109 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 17:25:39,111 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 17:25:39,112 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 17:25:43,474 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 178 statements into 1 equivalence classes. [2025-01-09 17:25:43,903 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 178 of 178 statements. [2025-01-09 17:25:43,903 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 17:25:43,903 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 17:25:43,922 INFO L256 TraceCheckSpWp]: Trace formula consists of 4561 conjuncts, 9 conjuncts are in the unsatisfiable core [2025-01-09 17:25:43,928 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 17:25:44,598 INFO L134 CoverageAnalysis]: Checked inductivity of 392 backedges. 148 proven. 0 refuted. 0 times theorem prover too weak. 244 trivial. 0 not checked. [2025-01-09 17:25:44,598 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 17:25:44,598 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1134435523] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 17:25:44,598 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-09 17:25:44,598 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 9 [2025-01-09 17:25:44,598 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [264995135] [2025-01-09 17:25:44,598 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 17:25:44,599 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-01-09 17:25:44,599 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 17:25:44,600 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-01-09 17:25:44,600 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2025-01-09 17:25:44,600 INFO L87 Difference]: Start difference. First operand 208 states and 279 transitions. Second operand has 6 states, 5 states have (on average 13.8) internal successors, (69), 6 states have internal predecessors, (69), 4 states have call successors, (32), 2 states have call predecessors, (32), 4 states have return successors, (31), 4 states have call predecessors, (31), 4 states have call successors, (31) [2025-01-09 17:25:45,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 17:25:45,247 INFO L93 Difference]: Finished difference Result 384 states and 509 transitions. [2025-01-09 17:25:45,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-01-09 17:25:45,248 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 13.8) internal successors, (69), 6 states have internal predecessors, (69), 4 states have call successors, (32), 2 states have call predecessors, (32), 4 states have return successors, (31), 4 states have call predecessors, (31), 4 states have call successors, (31) Word has length 178 [2025-01-09 17:25:45,249 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 17:25:45,251 INFO L225 Difference]: With dead ends: 384 [2025-01-09 17:25:45,251 INFO L226 Difference]: Without dead ends: 208 [2025-01-09 17:25:45,252 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 185 GetRequests, 177 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2025-01-09 17:25:45,253 INFO L435 NwaCegarLoop]: 272 mSDtfsCounter, 6 mSDsluCounter, 1074 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 1346 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2025-01-09 17:25:45,253 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 1346 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2025-01-09 17:25:45,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 208 states. [2025-01-09 17:25:45,267 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 208 to 208. [2025-01-09 17:25:45,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 208 states, 129 states have (on average 1.2093023255813953) internal successors, (156), 131 states have internal predecessors, (156), 62 states have call successors, (62), 16 states have call predecessors, (62), 16 states have return successors, (60), 60 states have call predecessors, (60), 60 states have call successors, (60) [2025-01-09 17:25:45,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 208 states to 208 states and 278 transitions. [2025-01-09 17:25:45,273 INFO L78 Accepts]: Start accepts. Automaton has 208 states and 278 transitions. Word has length 178 [2025-01-09 17:25:45,273 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 17:25:45,273 INFO L471 AbstractCegarLoop]: Abstraction has 208 states and 278 transitions. [2025-01-09 17:25:45,273 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 13.8) internal successors, (69), 6 states have internal predecessors, (69), 4 states have call successors, (32), 2 states have call predecessors, (32), 4 states have return successors, (31), 4 states have call predecessors, (31), 4 states have call successors, (31) [2025-01-09 17:25:45,274 INFO L276 IsEmpty]: Start isEmpty. Operand 208 states and 278 transitions. [2025-01-09 17:25:45,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2025-01-09 17:25:45,298 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 17:25:45,298 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 9, 9, 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, 1] [2025-01-09 17:25:45,318 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2025-01-09 17:25:45,499 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 17:25:45,500 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 17:25:45,501 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 17:25:45,501 INFO L85 PathProgramCache]: Analyzing trace with hash -2082615211, now seen corresponding path program 1 times [2025-01-09 17:25:45,502 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 17:25:45,502 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1774615776] [2025-01-09 17:25:45,502 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 17:25:45,502 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 17:25:49,353 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 180 statements into 1 equivalence classes. [2025-01-09 17:25:49,922 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 180 of 180 statements. [2025-01-09 17:25:49,923 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 17:25:49,923 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 17:25:51,665 INFO L134 CoverageAnalysis]: Checked inductivity of 393 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 383 trivial. 0 not checked. [2025-01-09 17:25:51,665 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 17:25:51,665 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1774615776] [2025-01-09 17:25:51,665 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1774615776] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 17:25:51,665 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [294910356] [2025-01-09 17:25:51,665 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 17:25:51,665 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 17:25:51,665 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 17:25:51,667 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 17:25:51,669 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 17:25:56,235 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 180 statements into 1 equivalence classes. [2025-01-09 17:26:30,678 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 180 of 180 statements. [2025-01-09 17:26:30,678 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 17:26:30,678 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 17:26:30,701 INFO L256 TraceCheckSpWp]: Trace formula consists of 4575 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-01-09 17:26:30,706 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 17:26:30,898 INFO L134 CoverageAnalysis]: Checked inductivity of 393 backedges. 143 proven. 0 refuted. 0 times theorem prover too weak. 250 trivial. 0 not checked. [2025-01-09 17:26:30,898 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 17:26:30,899 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [294910356] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 17:26:30,899 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-09 17:26:30,899 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 8 [2025-01-09 17:26:30,899 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1077418744] [2025-01-09 17:26:30,899 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 17:26:30,899 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-09 17:26:30,899 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 17:26:30,900 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-09 17:26:30,900 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2025-01-09 17:26:30,900 INFO L87 Difference]: Start difference. First operand 208 states and 278 transitions. Second operand has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 2 states have call successors, (32), 2 states have call predecessors, (32), 2 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2025-01-09 17:26:30,955 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 17:26:30,955 INFO L93 Difference]: Finished difference Result 379 states and 505 transitions. [2025-01-09 17:26:30,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-09 17:26:30,956 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 2 states have call successors, (32), 2 states have call predecessors, (32), 2 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) Word has length 180 [2025-01-09 17:26:30,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 17:26:30,958 INFO L225 Difference]: With dead ends: 379 [2025-01-09 17:26:30,959 INFO L226 Difference]: Without dead ends: 209 [2025-01-09 17:26:30,960 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 186 GetRequests, 180 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2025-01-09 17:26:30,960 INFO L435 NwaCegarLoop]: 277 mSDtfsCounter, 0 mSDsluCounter, 274 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 551 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-01-09 17:26:30,960 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 551 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 17:26:30,961 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 209 states. [2025-01-09 17:26:30,969 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 209 to 209. [2025-01-09 17:26:30,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 209 states, 130 states have (on average 1.2076923076923076) internal successors, (157), 132 states have internal predecessors, (157), 62 states have call successors, (62), 16 states have call predecessors, (62), 16 states have return successors, (60), 60 states have call predecessors, (60), 60 states have call successors, (60) [2025-01-09 17:26:30,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 209 states to 209 states and 279 transitions. [2025-01-09 17:26:30,972 INFO L78 Accepts]: Start accepts. Automaton has 209 states and 279 transitions. Word has length 180 [2025-01-09 17:26:30,972 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 17:26:30,972 INFO L471 AbstractCegarLoop]: Abstraction has 209 states and 279 transitions. [2025-01-09 17:26:30,972 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 2 states have call successors, (32), 2 states have call predecessors, (32), 2 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2025-01-09 17:26:30,972 INFO L276 IsEmpty]: Start isEmpty. Operand 209 states and 279 transitions. [2025-01-09 17:26:30,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2025-01-09 17:26:30,974 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 17:26:30,974 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 9, 9, 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, 1] [2025-01-09 17:26:31,174 WARN L435 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forcibly destroying the process [2025-01-09 17:26:31,226 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2025-01-09 17:26:31,226 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 17:26:31,227 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 17:26:31,227 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 17:26:31,227 INFO L85 PathProgramCache]: Analyzing trace with hash 1339997835, now seen corresponding path program 1 times [2025-01-09 17:26:31,227 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 17:26:31,227 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [445727423] [2025-01-09 17:26:31,227 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 17:26:31,227 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 17:26:34,879 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 182 statements into 1 equivalence classes. [2025-01-09 17:26:35,572 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 182 of 182 statements. [2025-01-09 17:26:35,572 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 17:26:35,572 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 17:26:37,731 INFO L134 CoverageAnalysis]: Checked inductivity of 398 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 384 trivial. 0 not checked. [2025-01-09 17:26:37,731 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 17:26:37,731 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [445727423] [2025-01-09 17:26:37,731 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [445727423] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 17:26:37,732 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [493745228] [2025-01-09 17:26:37,732 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 17:26:37,732 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 17:26:37,732 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 17:26:37,734 INFO L229 MonitoredProcess]: Starting monitored process 5 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 17:26:37,735 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2025-01-09 17:26:42,098 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 182 statements into 1 equivalence classes. [2025-01-09 17:26:43,287 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 182 of 182 statements. [2025-01-09 17:26:43,288 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 17:26:43,288 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 17:26:43,311 INFO L256 TraceCheckSpWp]: Trace formula consists of 4613 conjuncts, 18 conjuncts are in the unsatisfiable core [2025-01-09 17:26:43,318 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 17:26:44,692 INFO L134 CoverageAnalysis]: Checked inductivity of 398 backedges. 152 proven. 1 refuted. 0 times theorem prover too weak. 245 trivial. 0 not checked. [2025-01-09 17:26:44,692 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-09 17:26:48,307 INFO L134 CoverageAnalysis]: Checked inductivity of 398 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 384 trivial. 0 not checked. [2025-01-09 17:26:48,308 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [493745228] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-09 17:26:48,308 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-09 17:26:48,308 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 17 [2025-01-09 17:26:48,308 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [969647012] [2025-01-09 17:26:48,308 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-09 17:26:48,309 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2025-01-09 17:26:48,309 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 17:26:48,309 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2025-01-09 17:26:48,310 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=213, Unknown=0, NotChecked=0, Total=272 [2025-01-09 17:26:48,310 INFO L87 Difference]: Start difference. First operand 209 states and 279 transitions. Second operand has 17 states, 15 states have (on average 6.333333333333333) internal successors, (95), 17 states have internal predecessors, (95), 7 states have call successors, (42), 2 states have call predecessors, (42), 6 states have return successors, (43), 7 states have call predecessors, (43), 7 states have call successors, (43) [2025-01-09 17:26:49,213 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 17:26:49,214 INFO L93 Difference]: Finished difference Result 387 states and 511 transitions. [2025-01-09 17:26:49,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-01-09 17:26:49,215 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 15 states have (on average 6.333333333333333) internal successors, (95), 17 states have internal predecessors, (95), 7 states have call successors, (42), 2 states have call predecessors, (42), 6 states have return successors, (43), 7 states have call predecessors, (43), 7 states have call successors, (43) Word has length 182 [2025-01-09 17:26:49,217 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 17:26:49,219 INFO L225 Difference]: With dead ends: 387 [2025-01-09 17:26:49,221 INFO L226 Difference]: Without dead ends: 210 [2025-01-09 17:26:49,222 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 371 GetRequests, 355 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=65, Invalid=241, Unknown=0, NotChecked=0, Total=306 [2025-01-09 17:26:49,223 INFO L435 NwaCegarLoop]: 272 mSDtfsCounter, 8 mSDsluCounter, 1883 mSDsCounter, 0 mSdLazyCounter, 76 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 2155 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 76 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2025-01-09 17:26:49,223 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 2155 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 76 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2025-01-09 17:26:49,223 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 210 states. [2025-01-09 17:26:49,239 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 210 to 210. [2025-01-09 17:26:49,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 210 states, 131 states have (on average 1.2061068702290076) internal successors, (158), 133 states have internal predecessors, (158), 62 states have call successors, (62), 16 states have call predecessors, (62), 16 states have return successors, (60), 60 states have call predecessors, (60), 60 states have call successors, (60) [2025-01-09 17:26:49,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 210 states to 210 states and 280 transitions. [2025-01-09 17:26:49,241 INFO L78 Accepts]: Start accepts. Automaton has 210 states and 280 transitions. Word has length 182 [2025-01-09 17:26:49,242 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 17:26:49,242 INFO L471 AbstractCegarLoop]: Abstraction has 210 states and 280 transitions. [2025-01-09 17:26:49,242 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 15 states have (on average 6.333333333333333) internal successors, (95), 17 states have internal predecessors, (95), 7 states have call successors, (42), 2 states have call predecessors, (42), 6 states have return successors, (43), 7 states have call predecessors, (43), 7 states have call successors, (43) [2025-01-09 17:26:49,242 INFO L276 IsEmpty]: Start isEmpty. Operand 210 states and 280 transitions. [2025-01-09 17:26:49,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2025-01-09 17:26:49,244 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 17:26:49,244 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 9, 9, 4, 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, 1] [2025-01-09 17:26:49,280 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2025-01-09 17:26:49,444 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 17:26:49,444 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 17:26:49,445 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 17:26:49,445 INFO L85 PathProgramCache]: Analyzing trace with hash -1778845483, now seen corresponding path program 2 times [2025-01-09 17:26:49,445 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 17:26:49,445 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [341441630] [2025-01-09 17:26:49,445 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-01-09 17:26:49,445 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms