./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/aws-c-common/aws_priority_queue_s_swap_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_s_swap_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 7ca632cf4d0628a0bca8581d3487333a879c201a6e38711f70e5e296a0f6c548 --- Real Ultimate output --- This is Ultimate 0.3.0-?-551b009-m [2025-01-09 17:27:42,444 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-01-09 17:27:42,496 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2025-01-09 17:27:42,502 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-01-09 17:27:42,504 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-01-09 17:27:42,523 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-01-09 17:27:42,524 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-01-09 17:27:42,524 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-01-09 17:27:42,524 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-01-09 17:27:42,525 INFO L153 SettingsManager]: * Use memory slicer=true [2025-01-09 17:27:42,525 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-01-09 17:27:42,525 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-01-09 17:27:42,526 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-01-09 17:27:42,526 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-01-09 17:27:42,526 INFO L153 SettingsManager]: * Use SBE=true [2025-01-09 17:27:42,526 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-01-09 17:27:42,526 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-01-09 17:27:42,527 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-01-09 17:27:42,527 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-01-09 17:27:42,527 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-01-09 17:27:42,527 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-01-09 17:27:42,527 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-01-09 17:27:42,527 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-01-09 17:27:42,527 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-01-09 17:27:42,527 INFO L153 SettingsManager]: * Use constant arrays=true [2025-01-09 17:27:42,527 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-01-09 17:27:42,527 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 17:27:42,527 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-09 17:27:42,527 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 17:27:42,527 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 17:27:42,528 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-01-09 17:27:42,528 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 17:27:42,528 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-09 17:27:42,528 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 17:27:42,528 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 17:27:42,528 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-01-09 17:27:42,529 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-01-09 17:27:42,529 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-01-09 17:27:42,529 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-01-09 17:27:42,529 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-01-09 17:27:42,529 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-01-09 17:27:42,529 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-01-09 17:27:42,529 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-01-09 17:27:42,529 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-01-09 17:27:42,529 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-01-09 17:27:42,529 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 -> 7ca632cf4d0628a0bca8581d3487333a879c201a6e38711f70e5e296a0f6c548 [2025-01-09 17:27:42,742 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-01-09 17:27:42,756 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-01-09 17:27:42,758 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-01-09 17:27:42,759 INFO L270 PluginConnector]: Initializing CDTParser... [2025-01-09 17:27:42,760 INFO L274 PluginConnector]: CDTParser initialized [2025-01-09 17:27:42,761 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_priority_queue_s_swap_harness_negated.i [2025-01-09 17:27:43,977 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/c7f1a4f09/46f4fa888fec4ef799fb146e547f6981/FLAG68892f4c3 [2025-01-09 17:27:44,398 INFO L384 CDTParser]: Found 1 translation units. [2025-01-09 17:27:44,399 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_priority_queue_s_swap_harness_negated.i [2025-01-09 17:27:44,431 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/c7f1a4f09/46f4fa888fec4ef799fb146e547f6981/FLAG68892f4c3 [2025-01-09 17:27:44,556 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/c7f1a4f09/46f4fa888fec4ef799fb146e547f6981 [2025-01-09 17:27:44,557 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-01-09 17:27:44,558 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-01-09 17:27:44,559 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-01-09 17:27:44,559 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-01-09 17:27:44,562 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-01-09 17:27:44,563 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 05:27:44" (1/1) ... [2025-01-09 17:27:44,567 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@321eb7c9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:27:44, skipping insertion in model container [2025-01-09 17:27:44,567 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 05:27:44" (1/1) ... [2025-01-09 17:27:44,638 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-01-09 17:27:44,879 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_s_swap_harness_negated.i[4499,4512] [2025-01-09 17:27:44,890 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_s_swap_harness_negated.i[4559,4572] [2025-01-09 17:27:45,278 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:27:45,279 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:27:45,279 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:27:45,282 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:27:45,283 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:27:45,292 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:27:45,293 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:27:45,294 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:27:45,294 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:27:45,296 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:27:45,297 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:27:45,297 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:27:45,297 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:27:45,728 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:27:45,734 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:27:45,814 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:27:45,814 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:27:45,815 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:27:45,815 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:27:45,815 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:27:45,815 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:27:45,819 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:27:45,819 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:27:45,820 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:27:45,820 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:27:45,820 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:27:45,820 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:27:45,820 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:27:45,824 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:27:45,824 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:27:45,824 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:27:45,825 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:27:45,827 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:27:45,827 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:27:45,831 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:27:45,831 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:27:45,831 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:27:45,849 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 17:27:45,874 INFO L200 MainTranslator]: Completed pre-run [2025-01-09 17:27:45,883 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_s_swap_harness_negated.i[4499,4512] [2025-01-09 17:27:45,884 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_s_swap_harness_negated.i[4559,4572] [2025-01-09 17:27:45,946 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:27:45,947 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:27:45,947 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:27:45,947 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:27:45,948 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:27:45,952 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:27:45,952 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:27:45,952 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:27:45,952 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:27:45,953 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:27:45,953 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:27:45,953 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:27:45,954 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:27:45,995 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:27:45,998 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:27:46,002 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [7738-7749] [2025-01-09 17:27:46,011 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:27:46,012 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:27:46,012 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:27:46,012 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:27:46,012 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:27:46,012 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:27:46,013 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:27:46,013 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:27:46,013 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:27:46,013 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:27:46,013 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:27:46,013 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:27:46,013 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:27:46,014 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:27:46,014 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:27:46,014 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:27:46,014 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:27:46,015 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:27:46,016 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:27:46,019 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:27:46,019 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:27:46,019 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:27:46,025 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 17:27:46,177 INFO L204 MainTranslator]: Completed translation [2025-01-09 17:27:46,178 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:27:46 WrapperNode [2025-01-09 17:27:46,178 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-01-09 17:27:46,179 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-01-09 17:27:46,179 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-01-09 17:27:46,179 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-01-09 17:27:46,183 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:27:46" (1/1) ... [2025-01-09 17:27:46,224 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:27:46" (1/1) ... [2025-01-09 17:27:46,257 INFO L138 Inliner]: procedures = 687, calls = 1963, calls flagged for inlining = 61, calls inlined = 11, statements flattened = 791 [2025-01-09 17:27:46,258 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-01-09 17:27:46,258 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-01-09 17:27:46,259 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-01-09 17:27:46,259 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-01-09 17:27:46,265 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:27:46" (1/1) ... [2025-01-09 17:27:46,265 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:27:46" (1/1) ... [2025-01-09 17:27:46,275 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:27:46" (1/1) ... [2025-01-09 17:27:46,348 INFO L175 MemorySlicer]: Split 355 memory accesses to 8 slices as follows [238, 2, 81, 3, 7, 5, 14, 5]. 67 percent of accesses are in the largest equivalence class. The 19 initializations are split as follows [6, 2, 5, 1, 0, 0, 5, 0]. The 258 writes are split as follows [232, 0, 17, 1, 2, 2, 2, 2]. [2025-01-09 17:27:46,348 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:27:46" (1/1) ... [2025-01-09 17:27:46,349 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:27:46" (1/1) ... [2025-01-09 17:27:46,388 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:27:46" (1/1) ... [2025-01-09 17:27:46,391 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:27:46" (1/1) ... [2025-01-09 17:27:46,395 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:27:46" (1/1) ... [2025-01-09 17:27:46,400 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:27:46" (1/1) ... [2025-01-09 17:27:46,407 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:27:46" (1/1) ... [2025-01-09 17:27:46,417 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-01-09 17:27:46,418 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-01-09 17:27:46,418 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-01-09 17:27:46,418 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-01-09 17:27:46,418 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:27:46" (1/1) ... [2025-01-09 17:27:46,426 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 17:27:46,434 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 17:27:46,448 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 17:27:46,451 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 17:27:46,468 INFO L130 BoogieDeclarations]: Found specification of procedure aws_is_mem_zeroed [2025-01-09 17:27:46,468 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_is_mem_zeroed [2025-01-09 17:27:46,468 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-01-09 17:27:46,468 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_bounded [2025-01-09 17:27:46,468 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_bounded [2025-01-09 17:27:46,469 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_valid [2025-01-09 17:27:46,469 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_valid [2025-01-09 17:27:46,469 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2025-01-09 17:27:46,469 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2025-01-09 17:27:46,469 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2025-01-09 17:27:46,469 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2025-01-09 17:27:46,469 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2025-01-09 17:27:46,469 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2025-01-09 17:27:46,469 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2025-01-09 17:27:46,469 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2025-01-09 17:27:46,470 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#6 [2025-01-09 17:27:46,470 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#7 [2025-01-09 17:27:46,470 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-01-09 17:27:46,470 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-01-09 17:27:46,470 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2025-01-09 17:27:46,470 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2025-01-09 17:27:46,471 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2025-01-09 17:27:46,471 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2025-01-09 17:27:46,471 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2025-01-09 17:27:46,471 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2025-01-09 17:27:46,471 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2025-01-09 17:27:46,471 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2025-01-09 17:27:46,471 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2025-01-09 17:27:46,471 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2025-01-09 17:27:46,471 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-01-09 17:27:46,471 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-01-09 17:27:46,471 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2025-01-09 17:27:46,471 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2025-01-09 17:27:46,471 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2025-01-09 17:27:46,471 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2025-01-09 17:27:46,471 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2025-01-09 17:27:46,471 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2025-01-09 17:27:46,471 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2025-01-09 17:27:46,472 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#7 [2025-01-09 17:27:46,472 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-01-09 17:27:46,472 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-01-09 17:27:46,472 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2025-01-09 17:27:46,472 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2025-01-09 17:27:46,472 INFO L130 BoogieDeclarations]: Found specification of procedure assert_byte_from_buffer_matches [2025-01-09 17:27:46,472 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_byte_from_buffer_matches [2025-01-09 17:27:46,472 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_size_t [2025-01-09 17:27:46,472 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_size_t [2025-01-09 17:27:46,473 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2025-01-09 17:27:46,473 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2025-01-09 17:27:46,473 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2025-01-09 17:27:46,473 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2025-01-09 17:27:46,473 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2025-01-09 17:27:46,473 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2025-01-09 17:27:46,473 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2025-01-09 17:27:46,473 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2025-01-09 17:27:46,473 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#6 [2025-01-09 17:27:46,473 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#7 [2025-01-09 17:27:46,473 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_malloc [2025-01-09 17:27:46,473 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_malloc [2025-01-09 17:27:46,473 INFO L130 BoogieDeclarations]: Found specification of procedure aws_priority_queue_is_valid [2025-01-09 17:27:46,473 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_priority_queue_is_valid [2025-01-09 17:27:46,473 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2025-01-09 17:27:46,473 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2025-01-09 17:27:46,474 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-01-09 17:27:46,474 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2025-01-09 17:27:46,474 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2025-01-09 17:27:46,474 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2025-01-09 17:27:46,474 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2025-01-09 17:27:46,474 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2025-01-09 17:27:46,474 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2025-01-09 17:27:46,474 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2025-01-09 17:27:46,474 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#7 [2025-01-09 17:27:46,475 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2025-01-09 17:27:46,475 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2025-01-09 17:27:46,475 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2025-01-09 17:27:46,475 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2025-01-09 17:27:46,475 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2025-01-09 17:27:46,475 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2025-01-09 17:27:46,475 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#6 [2025-01-09 17:27:46,475 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#7 [2025-01-09 17:27:46,475 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2025-01-09 17:27:46,475 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2025-01-09 17:27:46,475 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2025-01-09 17:27:46,475 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2025-01-09 17:27:46,475 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-01-09 17:27:46,475 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-01-09 17:27:46,475 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2025-01-09 17:27:46,475 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2025-01-09 17:27:46,475 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2025-01-09 17:27:46,475 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2025-01-09 17:27:46,475 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2025-01-09 17:27:46,475 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2025-01-09 17:27:46,475 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_array_list_has_allocated_data_member [2025-01-09 17:27:46,475 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_array_list_has_allocated_data_member [2025-01-09 17:27:46,475 INFO L130 BoogieDeclarations]: Found specification of procedure aws_priority_queue_backpointer_index_valid [2025-01-09 17:27:46,475 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_priority_queue_backpointer_index_valid [2025-01-09 17:27:46,475 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-01-09 17:27:46,475 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-01-09 17:27:46,475 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-01-09 17:27:46,475 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2025-01-09 17:27:46,475 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2025-01-09 17:27:46,475 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2025-01-09 17:27:46,475 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2025-01-09 17:27:46,475 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2025-01-09 17:27:46,736 INFO L234 CfgBuilder]: Building ICFG [2025-01-09 17:27:46,738 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-01-09 17:27:52,664 INFO L? ?]: Removed 186 outVars from TransFormulas that were not future-live. [2025-01-09 17:27:52,664 INFO L283 CfgBuilder]: Performing block encoding [2025-01-09 17:27:52,675 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-01-09 17:27:52,676 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2025-01-09 17:27:52,676 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 05:27:52 BoogieIcfgContainer [2025-01-09 17:27:52,677 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-01-09 17:27:52,678 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-01-09 17:27:52,678 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-01-09 17:27:52,681 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-01-09 17:27:52,681 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.01 05:27:44" (1/3) ... [2025-01-09 17:27:52,681 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a2dac7d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 05:27:52, skipping insertion in model container [2025-01-09 17:27:52,681 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:27:46" (2/3) ... [2025-01-09 17:27:52,682 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a2dac7d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 05:27:52, skipping insertion in model container [2025-01-09 17:27:52,682 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 05:27:52" (3/3) ... [2025-01-09 17:27:52,682 INFO L128 eAbstractionObserver]: Analyzing ICFG aws_priority_queue_s_swap_harness_negated.i [2025-01-09 17:27:52,692 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-01-09 17:27:52,693 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG aws_priority_queue_s_swap_harness_negated.i that has 18 procedures, 216 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2025-01-09 17:27:52,735 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-01-09 17:27:52,743 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;@4c08d222, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-01-09 17:27:52,743 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-01-09 17:27:52,748 INFO L276 IsEmpty]: Start isEmpty. Operand has 216 states, 138 states have (on average 1.2173913043478262) internal successors, (168), 139 states have internal predecessors, (168), 59 states have call successors, (59), 17 states have call predecessors, (59), 17 states have return successors, (59), 59 states have call predecessors, (59), 59 states have call successors, (59) [2025-01-09 17:27:52,758 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2025-01-09 17:27:52,758 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 17:27:52,758 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 7, 7, 7, 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] [2025-01-09 17:27:52,759 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 17:27:52,762 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 17:27:52,763 INFO L85 PathProgramCache]: Analyzing trace with hash -156511733, now seen corresponding path program 1 times [2025-01-09 17:27:52,767 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 17:27:52,768 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1895339853] [2025-01-09 17:27:52,768 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 17:27:52,769 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 17:27:56,996 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 142 statements into 1 equivalence classes. [2025-01-09 17:27:57,293 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 142 of 142 statements. [2025-01-09 17:27:57,294 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 17:27:57,294 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 17:27:57,726 INFO L134 CoverageAnalysis]: Checked inductivity of 211 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 199 trivial. 0 not checked. [2025-01-09 17:27:57,726 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 17:27:57,726 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1895339853] [2025-01-09 17:27:57,727 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1895339853] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 17:27:57,727 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1317841072] [2025-01-09 17:27:57,727 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 17:27:57,727 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 17:27:57,727 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 17:27:57,732 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 17:27:57,736 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 17:28:02,026 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 142 statements into 1 equivalence classes. [2025-01-09 17:28:02,496 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 142 of 142 statements. [2025-01-09 17:28:02,496 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 17:28:02,496 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 17:28:02,520 INFO L256 TraceCheckSpWp]: Trace formula consists of 4503 conjuncts, 1 conjuncts are in the unsatisfiable core [2025-01-09 17:28:02,529 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 17:28:02,543 INFO L134 CoverageAnalysis]: Checked inductivity of 211 backedges. 66 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2025-01-09 17:28:02,544 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 17:28:02,544 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1317841072] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 17:28:02,544 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-09 17:28:02,544 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2025-01-09 17:28:02,549 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [435363234] [2025-01-09 17:28:02,549 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 17:28:02,552 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-01-09 17:28:02,552 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 17:28:02,565 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-01-09 17:28:02,565 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-01-09 17:28:02,567 INFO L87 Difference]: Start difference. First operand has 216 states, 138 states have (on average 1.2173913043478262) internal successors, (168), 139 states have internal predecessors, (168), 59 states have call successors, (59), 17 states have call predecessors, (59), 17 states have return successors, (59), 59 states have call predecessors, (59), 59 states have call successors, (59) 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, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2025-01-09 17:28:02,600 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 17:28:02,600 INFO L93 Difference]: Finished difference Result 409 states and 572 transitions. [2025-01-09 17:28:02,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-09 17:28:02,602 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, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 142 [2025-01-09 17:28:02,603 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 17:28:02,611 INFO L225 Difference]: With dead ends: 409 [2025-01-09 17:28:02,612 INFO L226 Difference]: Without dead ends: 211 [2025-01-09 17:28:02,615 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 143 GetRequests, 143 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 17:28:02,617 INFO L435 NwaCegarLoop]: 284 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, 284 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 17:28:02,617 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 284 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 17:28:02,629 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 211 states. [2025-01-09 17:28:02,655 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 211 to 211. [2025-01-09 17:28:02,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 211 states, 134 states have (on average 1.208955223880597) internal successors, (162), 135 states have internal predecessors, (162), 59 states have call successors, (59), 17 states have call predecessors, (59), 17 states have return successors, (58), 58 states have call predecessors, (58), 58 states have call successors, (58) [2025-01-09 17:28:02,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 211 states to 211 states and 279 transitions. [2025-01-09 17:28:02,663 INFO L78 Accepts]: Start accepts. Automaton has 211 states and 279 transitions. Word has length 142 [2025-01-09 17:28:02,664 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 17:28:02,664 INFO L471 AbstractCegarLoop]: Abstraction has 211 states and 279 transitions. [2025-01-09 17:28:02,664 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, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2025-01-09 17:28:02,664 INFO L276 IsEmpty]: Start isEmpty. Operand 211 states and 279 transitions. [2025-01-09 17:28:02,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2025-01-09 17:28:02,671 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 17:28:02,671 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 7, 7, 7, 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] [2025-01-09 17:28:02,687 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2025-01-09 17:28:02,872 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 17:28:02,872 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 17:28:02,873 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 17:28:02,873 INFO L85 PathProgramCache]: Analyzing trace with hash -1054601719, now seen corresponding path program 1 times [2025-01-09 17:28:02,873 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 17:28:02,873 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1522044306] [2025-01-09 17:28:02,873 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 17:28:02,873 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 17:28:06,869 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 142 statements into 1 equivalence classes. [2025-01-09 17:28:07,294 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 142 of 142 statements. [2025-01-09 17:28:07,294 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 17:28:07,295 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 17:28:09,736 INFO L134 CoverageAnalysis]: Checked inductivity of 211 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 209 trivial. 0 not checked. [2025-01-09 17:28:09,738 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 17:28:09,738 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1522044306] [2025-01-09 17:28:09,739 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1522044306] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 17:28:09,739 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 17:28:09,739 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-01-09 17:28:09,739 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [480377508] [2025-01-09 17:28:09,739 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 17:28:09,740 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-01-09 17:28:09,740 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 17:28:09,740 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-01-09 17:28:09,742 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-01-09 17:28:09,742 INFO L87 Difference]: Start difference. First operand 211 states and 279 transitions. Second operand has 6 states, 5 states have (on average 9.6) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (22), 2 states have call predecessors, (22), 1 states have call successors, (22) [2025-01-09 17:28:10,260 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 17:28:10,260 INFO L93 Difference]: Finished difference Result 221 states and 291 transitions. [2025-01-09 17:28:10,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-01-09 17:28:10,264 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 9.6) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (22), 2 states have call predecessors, (22), 1 states have call successors, (22) Word has length 142 [2025-01-09 17:28:10,264 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 17:28:10,267 INFO L225 Difference]: With dead ends: 221 [2025-01-09 17:28:10,270 INFO L226 Difference]: Without dead ends: 219 [2025-01-09 17:28:10,271 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2025-01-09 17:28:10,271 INFO L435 NwaCegarLoop]: 276 mSDtfsCounter, 3 mSDsluCounter, 1084 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 1360 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2025-01-09 17:28:10,272 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 1360 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2025-01-09 17:28:10,272 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 219 states. [2025-01-09 17:28:10,294 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 219 to 218. [2025-01-09 17:28:10,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 218 states, 138 states have (on average 1.2028985507246377) internal successors, (166), 140 states have internal predecessors, (166), 60 states have call successors, (60), 18 states have call predecessors, (60), 19 states have return successors, (62), 59 states have call predecessors, (62), 59 states have call successors, (62) [2025-01-09 17:28:10,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 218 states to 218 states and 288 transitions. [2025-01-09 17:28:10,301 INFO L78 Accepts]: Start accepts. Automaton has 218 states and 288 transitions. Word has length 142 [2025-01-09 17:28:10,301 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 17:28:10,301 INFO L471 AbstractCegarLoop]: Abstraction has 218 states and 288 transitions. [2025-01-09 17:28:10,301 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 9.6) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (22), 2 states have call predecessors, (22), 1 states have call successors, (22) [2025-01-09 17:28:10,301 INFO L276 IsEmpty]: Start isEmpty. Operand 218 states and 288 transitions. [2025-01-09 17:28:10,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2025-01-09 17:28:10,303 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 17:28:10,303 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 7, 7, 7, 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] [2025-01-09 17:28:10,303 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-01-09 17:28:10,303 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 17:28:10,303 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 17:28:10,304 INFO L85 PathProgramCache]: Analyzing trace with hash 387173265, now seen corresponding path program 1 times [2025-01-09 17:28:10,304 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 17:28:10,304 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [308936929] [2025-01-09 17:28:10,304 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 17:28:10,304 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 17:28:14,258 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 150 statements into 1 equivalence classes. [2025-01-09 17:28:14,340 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 150 of 150 statements. [2025-01-09 17:28:14,344 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 17:28:14,344 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 17:28:15,287 INFO L134 CoverageAnalysis]: Checked inductivity of 211 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 208 trivial. 0 not checked. [2025-01-09 17:28:15,287 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 17:28:15,287 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [308936929] [2025-01-09 17:28:15,287 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [308936929] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 17:28:15,287 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 17:28:15,288 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-01-09 17:28:15,288 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [62239080] [2025-01-09 17:28:15,288 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 17:28:15,289 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-01-09 17:28:15,289 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 17:28:15,290 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-01-09 17:28:15,290 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-01-09 17:28:15,290 INFO L87 Difference]: Start difference. First operand 218 states and 288 transitions. Second operand has 6 states, 5 states have (on average 11.0) internal successors, (55), 6 states have internal predecessors, (55), 5 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (23), 4 states have call predecessors, (23), 4 states have call successors, (23) [2025-01-09 17:28:16,585 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 17:28:16,586 INFO L93 Difference]: Finished difference Result 388 states and 509 transitions. [2025-01-09 17:28:16,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-01-09 17:28:16,587 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 11.0) internal successors, (55), 6 states have internal predecessors, (55), 5 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (23), 4 states have call predecessors, (23), 4 states have call successors, (23) Word has length 150 [2025-01-09 17:28:16,587 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 17:28:16,590 INFO L225 Difference]: With dead ends: 388 [2025-01-09 17:28:16,594 INFO L226 Difference]: Without dead ends: 171 [2025-01-09 17:28:16,595 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2025-01-09 17:28:16,596 INFO L435 NwaCegarLoop]: 254 mSDtfsCounter, 60 mSDsluCounter, 893 mSDsCounter, 0 mSdLazyCounter, 109 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 76 SdHoareTripleChecker+Valid, 1147 SdHoareTripleChecker+Invalid, 130 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 109 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2025-01-09 17:28:16,596 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [76 Valid, 1147 Invalid, 130 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 109 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2025-01-09 17:28:16,596 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 171 states. [2025-01-09 17:28:16,609 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 171 to 170. [2025-01-09 17:28:16,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 170 states, 102 states have (on average 1.1568627450980393) internal successors, (118), 103 states have internal predecessors, (118), 53 states have call successors, (53), 14 states have call predecessors, (53), 14 states have return successors, (52), 52 states have call predecessors, (52), 52 states have call successors, (52) [2025-01-09 17:28:16,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 170 states to 170 states and 223 transitions. [2025-01-09 17:28:16,618 INFO L78 Accepts]: Start accepts. Automaton has 170 states and 223 transitions. Word has length 150 [2025-01-09 17:28:16,618 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 17:28:16,618 INFO L471 AbstractCegarLoop]: Abstraction has 170 states and 223 transitions. [2025-01-09 17:28:16,619 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 11.0) internal successors, (55), 6 states have internal predecessors, (55), 5 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (23), 4 states have call predecessors, (23), 4 states have call successors, (23) [2025-01-09 17:28:16,619 INFO L276 IsEmpty]: Start isEmpty. Operand 170 states and 223 transitions. [2025-01-09 17:28:16,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2025-01-09 17:28:16,624 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 17:28:16,625 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 7, 7, 7, 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] [2025-01-09 17:28:16,625 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-01-09 17:28:16,625 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 17:28:16,625 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 17:28:16,625 INFO L85 PathProgramCache]: Analyzing trace with hash 1279451469, now seen corresponding path program 1 times [2025-01-09 17:28:16,625 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 17:28:16,625 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1613660368] [2025-01-09 17:28:16,625 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 17:28:16,626 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 17:28:20,548 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 148 statements into 1 equivalence classes. [2025-01-09 17:28:21,921 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 148 of 148 statements. [2025-01-09 17:28:21,921 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 17:28:21,921 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 17:28:24,034 INFO L134 CoverageAnalysis]: Checked inductivity of 213 backedges. 11 proven. 11 refuted. 0 times theorem prover too weak. 191 trivial. 0 not checked. [2025-01-09 17:28:24,035 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 17:28:24,035 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1613660368] [2025-01-09 17:28:24,035 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1613660368] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 17:28:24,035 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [968648103] [2025-01-09 17:28:24,035 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 17:28:24,035 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 17:28:24,036 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 17:28:24,039 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 17:28:24,046 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 17:28:28,329 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 148 statements into 1 equivalence classes. [2025-01-09 17:28:28,856 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 148 of 148 statements. [2025-01-09 17:28:28,857 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 17:28:28,857 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 17:28:28,887 INFO L256 TraceCheckSpWp]: Trace formula consists of 4514 conjuncts, 65 conjuncts are in the unsatisfiable core [2025-01-09 17:28:28,896 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 17:28:28,943 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2025-01-09 17:28:28,985 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2025-01-09 17:28:31,869 WARN L873 $PredicateComparison]: unable to prove that (exists ((v_ensure_array_list_has_allocated_data_member_~list.offset_8 Int)) (and (= (store |c_old(#memory_$Pointer$#2.base)| |c_ensure_array_list_has_allocated_data_member_#in~list.base| (store (select |c_old(#memory_$Pointer$#2.base)| |c_ensure_array_list_has_allocated_data_member_#in~list.base|) v_ensure_array_list_has_allocated_data_member_~list.offset_8 (select (select |c_#memory_$Pointer$#2.base| |c_ensure_array_list_has_allocated_data_member_#in~list.base|) v_ensure_array_list_has_allocated_data_member_~list.offset_8))) |c_#memory_$Pointer$#2.base|) (<= v_ensure_array_list_has_allocated_data_member_~list.offset_8 |c_ensure_array_list_has_allocated_data_member_#in~list.offset|) (= (store |c_old(#memory_$Pointer$#2.offset)| |c_ensure_array_list_has_allocated_data_member_#in~list.base| (store (select |c_old(#memory_$Pointer$#2.offset)| |c_ensure_array_list_has_allocated_data_member_#in~list.base|) v_ensure_array_list_has_allocated_data_member_~list.offset_8 (select (select |c_#memory_$Pointer$#2.offset| |c_ensure_array_list_has_allocated_data_member_#in~list.base|) v_ensure_array_list_has_allocated_data_member_~list.offset_8))) |c_#memory_$Pointer$#2.offset|))) is different from true [2025-01-09 17:28:31,990 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-01-09 17:28:31,991 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2025-01-09 17:28:32,052 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-01-09 17:28:32,054 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2025-01-09 17:28:33,730 INFO L134 CoverageAnalysis]: Checked inductivity of 213 backedges. 114 proven. 16 refuted. 0 times theorem prover too weak. 81 trivial. 2 not checked. [2025-01-09 17:28:33,731 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-09 17:28:37,973 INFO L134 CoverageAnalysis]: Checked inductivity of 213 backedges. 11 proven. 11 refuted. 0 times theorem prover too weak. 191 trivial. 0 not checked. [2025-01-09 17:28:37,973 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [968648103] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-09 17:28:37,973 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-09 17:28:37,974 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 15, 8] total 21 [2025-01-09 17:28:37,974 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1461058877] [2025-01-09 17:28:37,974 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-09 17:28:37,974 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2025-01-09 17:28:37,975 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 17:28:37,975 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2025-01-09 17:28:37,975 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=333, Unknown=1, NotChecked=36, Total=420 [2025-01-09 17:28:37,976 INFO L87 Difference]: Start difference. First operand 170 states and 223 transitions. Second operand has 21 states, 17 states have (on average 5.588235294117647) internal successors, (95), 17 states have internal predecessors, (95), 9 states have call successors, (43), 5 states have call predecessors, (43), 9 states have return successors, (43), 8 states have call predecessors, (43), 9 states have call successors, (43) [2025-01-09 17:28:49,200 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2025-01-09 17:28:57,779 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2025-01-09 17:29:04,359 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0]