./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/aws-c-common/aws_hash_table_swap_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version c00e63dc 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_hash_table_swap_harness.i -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 6882eeeeda078376f05bcbd4b1762ced588254a85bc5f57e76099cec8f6bde3a --- Real Ultimate output --- This is Ultimate 0.3.0-?-c00e63d-m [2025-02-06 05:14:15,564 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-06 05:14:15,602 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2025-02-06 05:14:15,606 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-06 05:14:15,606 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-06 05:14:15,624 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-06 05:14:15,624 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-06 05:14:15,624 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-06 05:14:15,624 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-06 05:14:15,625 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-06 05:14:15,625 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-06 05:14:15,625 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-06 05:14:15,625 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-06 05:14:15,625 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-06 05:14:15,625 INFO L153 SettingsManager]: * Use SBE=true [2025-02-06 05:14:15,625 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-06 05:14:15,625 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-06 05:14:15,625 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-06 05:14:15,625 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-06 05:14:15,625 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-06 05:14:15,627 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-06 05:14:15,627 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-06 05:14:15,627 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-06 05:14:15,627 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-06 05:14:15,627 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-06 05:14:15,627 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-06 05:14:15,628 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-06 05:14:15,628 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-06 05:14:15,628 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-06 05:14:15,628 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 05:14:15,628 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-06 05:14:15,628 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-06 05:14:15,628 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-02-06 05:14:15,629 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-02-06 05:14:15,629 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-06 05:14:15,629 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-06 05:14:15,629 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-06 05:14:15,629 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-06 05:14:15,629 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-06 05:14:15,629 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-06 05:14:15,629 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 -> 6882eeeeda078376f05bcbd4b1762ced588254a85bc5f57e76099cec8f6bde3a [2025-02-06 05:14:15,839 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-06 05:14:15,846 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-06 05:14:15,847 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-06 05:14:15,848 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-06 05:14:15,848 INFO L274 PluginConnector]: CDTParser initialized [2025-02-06 05:14:15,849 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_hash_table_swap_harness.i [2025-02-06 05:14:17,047 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/4380fba6f/55ab854aebf94ada96d8f1424de49280/FLAG4919b7337 [2025-02-06 05:14:17,578 INFO L384 CDTParser]: Found 1 translation units. [2025-02-06 05:14:17,579 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_hash_table_swap_harness.i [2025-02-06 05:14:17,621 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/4380fba6f/55ab854aebf94ada96d8f1424de49280/FLAG4919b7337 [2025-02-06 05:14:18,129 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/4380fba6f/55ab854aebf94ada96d8f1424de49280 [2025-02-06 05:14:18,130 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-06 05:14:18,131 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-06 05:14:18,132 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-06 05:14:18,132 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-06 05:14:18,135 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-06 05:14:18,135 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 05:14:18" (1/1) ... [2025-02-06 05:14:18,136 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@49c785c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 05:14:18, skipping insertion in model container [2025-02-06 05:14:18,136 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 05:14:18" (1/1) ... [2025-02-06 05:14:18,186 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-06 05:14:18,344 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_hash_table_swap_harness.i[4493,4506] [2025-02-06 05:14:18,348 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_hash_table_swap_harness.i[4553,4566] [2025-02-06 05:14:18,883 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:14:18,884 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:14:18,884 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:14:18,885 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:14:18,885 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:14:18,896 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:14:18,896 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:14:18,897 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:14:18,898 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:14:18,899 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:14:18,899 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:14:18,899 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:14:18,900 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:14:19,605 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:14:19,607 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:14:19,632 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:14:19,633 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:14:19,640 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:14:19,642 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:14:19,659 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:14:19,661 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:14:19,662 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:14:19,662 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:14:19,662 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:14:19,662 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:14:19,663 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:14:19,710 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_hash_table_swap_harness.i[228095,228108] [2025-02-06 05:14:19,711 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 05:14:19,743 INFO L200 MainTranslator]: Completed pre-run [2025-02-06 05:14:19,754 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_hash_table_swap_harness.i[4493,4506] [2025-02-06 05:14:19,756 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_hash_table_swap_harness.i[4553,4566] [2025-02-06 05:14:19,801 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:14:19,801 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:14:19,802 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:14:19,802 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:14:19,803 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:14:19,810 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:14:19,810 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:14:19,811 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:14:19,811 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:14:19,814 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:14:19,814 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:14:19,814 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:14:19,814 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:14:19,878 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [7558-7569] [2025-02-06 05:14:19,990 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:14:19,991 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:14:19,999 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:14:20,003 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:14:20,004 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:14:20,005 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:14:20,016 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:14:20,020 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:14:20,021 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:14:20,021 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:14:20,021 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:14:20,022 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:14:20,023 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:14:20,040 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_hash_table_swap_harness.i[228095,228108] [2025-02-06 05:14:20,040 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 05:14:20,176 INFO L204 MainTranslator]: Completed translation [2025-02-06 05:14:20,177 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 05:14:20 WrapperNode [2025-02-06 05:14:20,178 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-06 05:14:20,178 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-06 05:14:20,178 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-06 05:14:20,179 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-06 05:14:20,183 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 05:14:20" (1/1) ... [2025-02-06 05:14:20,243 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 05:14:20" (1/1) ... [2025-02-06 05:14:20,293 INFO L138 Inliner]: procedures = 763, calls = 2436, calls flagged for inlining = 67, calls inlined = 9, statements flattened = 598 [2025-02-06 05:14:20,294 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-06 05:14:20,295 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-06 05:14:20,295 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-06 05:14:20,295 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-06 05:14:20,330 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 05:14:20" (1/1) ... [2025-02-06 05:14:20,330 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 05:14:20" (1/1) ... [2025-02-06 05:14:20,336 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 05:14:20" (1/1) ... [2025-02-06 05:14:20,396 INFO L175 MemorySlicer]: Split 284 memory accesses to 9 slices as follows [2, 238, 6, 2, 3, 2, 9, 17, 5]. 84 percent of accesses are in the largest equivalence class. The 14 initializations are split as follows [2, 6, 0, 0, 0, 1, 0, 0, 5]. The 240 writes are split as follows [0, 232, 2, 1, 1, 0, 3, 1, 0]. [2025-02-06 05:14:20,397 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 05:14:20" (1/1) ... [2025-02-06 05:14:20,397 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 05:14:20" (1/1) ... [2025-02-06 05:14:20,416 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 05:14:20" (1/1) ... [2025-02-06 05:14:20,418 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 05:14:20" (1/1) ... [2025-02-06 05:14:20,422 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 05:14:20" (1/1) ... [2025-02-06 05:14:20,424 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 05:14:20" (1/1) ... [2025-02-06 05:14:20,430 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-06 05:14:20,431 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-06 05:14:20,431 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-06 05:14:20,431 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-06 05:14:20,432 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 05:14:20" (1/1) ... [2025-02-06 05:14:20,435 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 05:14:20,451 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 05:14:20,465 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) [2025-02-06 05:14:20,469 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 [2025-02-06 05:14:20,494 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#0 [2025-02-06 05:14:20,494 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#1 [2025-02-06 05:14:20,495 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#2 [2025-02-06 05:14:20,495 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#3 [2025-02-06 05:14:20,495 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#4 [2025-02-06 05:14:20,495 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#5 [2025-02-06 05:14:20,495 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#6 [2025-02-06 05:14:20,496 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#7 [2025-02-06 05:14:20,496 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#8 [2025-02-06 05:14:20,496 INFO L130 BoogieDeclarations]: Found specification of procedure save_byte_from_hash_table [2025-02-06 05:14:20,496 INFO L138 BoogieDeclarations]: Found implementation of procedure save_byte_from_hash_table [2025-02-06 05:14:20,496 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-02-06 05:14:20,496 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2025-02-06 05:14:20,496 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2025-02-06 05:14:20,496 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2025-02-06 05:14:20,496 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2025-02-06 05:14:20,496 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2025-02-06 05:14:20,496 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2025-02-06 05:14:20,496 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#6 [2025-02-06 05:14:20,496 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#7 [2025-02-06 05:14:20,496 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#8 [2025-02-06 05:14:20,496 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-02-06 05:14:20,496 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-02-06 05:14:20,496 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2025-02-06 05:14:20,496 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2025-02-06 05:14:20,496 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2025-02-06 05:14:20,497 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2025-02-06 05:14:20,497 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2025-02-06 05:14:20,497 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2025-02-06 05:14:20,497 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#8 [2025-02-06 05:14:20,497 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2025-02-06 05:14:20,497 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2025-02-06 05:14:20,497 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2025-02-06 05:14:20,497 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2025-02-06 05:14:20,497 INFO L130 BoogieDeclarations]: Found specification of procedure hash_table_state_is_valid [2025-02-06 05:14:20,497 INFO L138 BoogieDeclarations]: Found implementation of procedure hash_table_state_is_valid [2025-02-06 05:14:20,497 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-02-06 05:14:20,497 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-06 05:14:20,497 INFO L130 BoogieDeclarations]: Found specification of procedure hash_table_state_required_bytes [2025-02-06 05:14:20,497 INFO L138 BoogieDeclarations]: Found implementation of procedure hash_table_state_required_bytes [2025-02-06 05:14:20,497 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2025-02-06 05:14:20,497 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2025-02-06 05:14:20,497 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2025-02-06 05:14:20,497 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2025-02-06 05:14:20,497 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2025-02-06 05:14:20,497 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2025-02-06 05:14:20,497 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2025-02-06 05:14:20,497 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#7 [2025-02-06 05:14:20,497 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#8 [2025-02-06 05:14:20,497 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-06 05:14:20,497 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-06 05:14:20,497 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2025-02-06 05:14:20,497 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2025-02-06 05:14:20,497 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2025-02-06 05:14:20,497 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2025-02-06 05:14:20,497 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2025-02-06 05:14:20,497 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2025-02-06 05:14:20,497 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2025-02-06 05:14:20,497 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2025-02-06 05:14:20,497 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2025-02-06 05:14:20,497 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2025-02-06 05:14:20,497 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#6 [2025-02-06 05:14:20,497 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#7 [2025-02-06 05:14:20,499 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#8 [2025-02-06 05:14:20,499 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2025-02-06 05:14:20,499 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2025-02-06 05:14:20,499 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-02-06 05:14:20,500 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_plus [2025-02-06 05:14:20,500 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_plus [2025-02-06 05:14:20,500 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2025-02-06 05:14:20,500 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2025-02-06 05:14:20,500 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2025-02-06 05:14:20,500 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2025-02-06 05:14:20,500 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2025-02-06 05:14:20,500 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2025-02-06 05:14:20,500 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2025-02-06 05:14:20,500 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#7 [2025-02-06 05:14:20,500 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#8 [2025-02-06 05:14:20,500 INFO L130 BoogieDeclarations]: Found specification of procedure aws_hash_table_is_valid [2025-02-06 05:14:20,500 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_hash_table_is_valid [2025-02-06 05:14:20,500 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2025-02-06 05:14:20,500 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2025-02-06 05:14:20,500 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2025-02-06 05:14:20,500 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2025-02-06 05:14:20,500 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2025-02-06 05:14:20,500 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2025-02-06 05:14:20,500 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#6 [2025-02-06 05:14:20,500 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#7 [2025-02-06 05:14:20,500 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#8 [2025-02-06 05:14:20,500 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_allocated_hash_table [2025-02-06 05:14:20,500 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_allocated_hash_table [2025-02-06 05:14:20,500 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2025-02-06 05:14:20,500 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2025-02-06 05:14:20,500 INFO L130 BoogieDeclarations]: Found specification of procedure aws_add_size_checked [2025-02-06 05:14:20,500 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_add_size_checked [2025-02-06 05:14:20,500 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2025-02-06 05:14:20,500 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2025-02-06 05:14:20,500 INFO L130 BoogieDeclarations]: Found specification of procedure check_hash_table_unchanged [2025-02-06 05:14:20,500 INFO L138 BoogieDeclarations]: Found implementation of procedure check_hash_table_unchanged [2025-02-06 05:14:20,500 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-02-06 05:14:20,500 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-02-06 05:14:20,500 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2025-02-06 05:14:20,500 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2025-02-06 05:14:20,500 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2025-02-06 05:14:20,501 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2025-02-06 05:14:20,501 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2025-02-06 05:14:20,501 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2025-02-06 05:14:20,501 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#8 [2025-02-06 05:14:20,501 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-02-06 05:14:20,501 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-02-06 05:14:20,501 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-02-06 05:14:20,501 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2025-02-06 05:14:20,501 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2025-02-06 05:14:20,501 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2025-02-06 05:14:20,501 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2025-02-06 05:14:20,501 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2025-02-06 05:14:20,501 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2025-02-06 05:14:20,501 INFO L130 BoogieDeclarations]: Found specification of procedure aws_is_power_of_two [2025-02-06 05:14:20,501 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_is_power_of_two [2025-02-06 05:14:20,790 INFO L257 CfgBuilder]: Building ICFG [2025-02-06 05:14:20,791 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-06 05:14:20,813 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L6947: havoc #t~malloc588.base, #t~malloc588.offset; [2025-02-06 05:14:20,834 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L2590: havoc #t~ret57#1; [2025-02-06 05:14:20,835 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L266: havoc #t~nondet9; [2025-02-06 05:14:20,904 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L263: havoc nondet_size_t_#t~nondet6#1; [2025-02-06 05:14:20,981 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L10103: call ULTIMATE.dealloc(~#elemsize~0.base, ~#elemsize~0.offset);havoc ~#elemsize~0.base, ~#elemsize~0.offset; [2025-02-06 05:14:21,056 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L9990: havoc #t~mem1489.base, #t~mem1489.offset;havoc #t~short1490;havoc #t~mem1491.base, #t~mem1491.offset;havoc #t~ret1492;havoc #t~short1493; [2025-02-06 05:14:21,132 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L2630: havoc #t~bitwise60;havoc #t~short61; [2025-02-06 05:14:21,146 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L2617: havoc #t~ret59#1; [2025-02-06 05:14:26,252 INFO L? ?]: Removed 117 outVars from TransFormulas that were not future-live. [2025-02-06 05:14:26,253 INFO L308 CfgBuilder]: Performing block encoding [2025-02-06 05:14:26,264 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-06 05:14:26,264 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-06 05:14:26,265 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 05:14:26 BoogieIcfgContainer [2025-02-06 05:14:26,265 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-06 05:14:26,267 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-06 05:14:26,267 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-06 05:14:26,270 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-06 05:14:26,270 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.02 05:14:18" (1/3) ... [2025-02-06 05:14:26,271 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64284fe0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.02 05:14:26, skipping insertion in model container [2025-02-06 05:14:26,271 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 05:14:20" (2/3) ... [2025-02-06 05:14:26,271 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64284fe0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.02 05:14:26, skipping insertion in model container [2025-02-06 05:14:26,271 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 05:14:26" (3/3) ... [2025-02-06 05:14:26,272 INFO L128 eAbstractionObserver]: Analyzing ICFG aws_hash_table_swap_harness.i [2025-02-06 05:14:26,281 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-06 05:14:26,282 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG aws_hash_table_swap_harness.i that has 17 procedures, 142 locations, 1 initial locations, 0 loop locations, and 1 error locations. [2025-02-06 05:14:26,336 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-06 05:14:26,343 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;@5120906e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-06 05:14:26,344 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-02-06 05:14:26,347 INFO L276 IsEmpty]: Start isEmpty. Operand has 142 states, 89 states have (on average 1.202247191011236) internal successors, (107), 94 states have internal predecessors, (107), 35 states have call successors, (35), 16 states have call predecessors, (35), 16 states have return successors, (35), 35 states have call predecessors, (35), 35 states have call successors, (35) [2025-02-06 05:14:26,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2025-02-06 05:14:26,352 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 05:14:26,352 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 05:14:26,353 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-06 05:14:26,356 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 05:14:26,356 INFO L85 PathProgramCache]: Analyzing trace with hash -1081493422, now seen corresponding path program 1 times [2025-02-06 05:14:26,361 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 05:14:26,362 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [960120185] [2025-02-06 05:14:26,362 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 05:14:26,362 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 05:14:30,836 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 25 statements into 1 equivalence classes. [2025-02-06 05:14:31,130 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 25 of 25 statements. [2025-02-06 05:14:31,131 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 05:14:31,131 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 05:14:31,515 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 05:14:31,516 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 05:14:31,516 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [960120185] [2025-02-06 05:14:31,517 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [960120185] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 05:14:31,517 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 05:14:31,518 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-06 05:14:31,519 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1621040499] [2025-02-06 05:14:31,519 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 05:14:31,522 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-02-06 05:14:31,523 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 05:14:31,539 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-02-06 05:14:31,540 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-02-06 05:14:31,543 INFO L87 Difference]: Start difference. First operand has 142 states, 89 states have (on average 1.202247191011236) internal successors, (107), 94 states have internal predecessors, (107), 35 states have call successors, (35), 16 states have call predecessors, (35), 16 states have return successors, (35), 35 states have call predecessors, (35), 35 states have call successors, (35) Second operand has 2 states, 2 states have (on average 10.0) internal successors, (20), 2 states have internal predecessors, (20), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2025-02-06 05:14:31,585 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 05:14:31,586 INFO L93 Difference]: Finished difference Result 280 states and 374 transitions. [2025-02-06 05:14:31,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-02-06 05:14:31,588 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 10.0) internal successors, (20), 2 states have internal predecessors, (20), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 25 [2025-02-06 05:14:31,588 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 05:14:31,593 INFO L225 Difference]: With dead ends: 280 [2025-02-06 05:14:31,593 INFO L226 Difference]: Without dead ends: 137 [2025-02-06 05:14:31,596 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-02-06 05:14:31,598 INFO L435 NwaCegarLoop]: 173 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 173 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-06 05:14:31,599 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 173 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-06 05:14:31,608 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137 states. [2025-02-06 05:14:31,634 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137 to 137. [2025-02-06 05:14:31,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 137 states, 85 states have (on average 1.1647058823529413) internal successors, (99), 89 states have internal predecessors, (99), 35 states have call successors, (35), 16 states have call predecessors, (35), 16 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2025-02-06 05:14:31,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 168 transitions. [2025-02-06 05:14:31,645 INFO L78 Accepts]: Start accepts. Automaton has 137 states and 168 transitions. Word has length 25 [2025-02-06 05:14:31,646 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 05:14:31,646 INFO L471 AbstractCegarLoop]: Abstraction has 137 states and 168 transitions. [2025-02-06 05:14:31,646 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 10.0) internal successors, (20), 2 states have internal predecessors, (20), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2025-02-06 05:14:31,647 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 168 transitions. [2025-02-06 05:14:31,648 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2025-02-06 05:14:31,648 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 05:14:31,648 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 05:14:31,648 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-02-06 05:14:31,648 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-06 05:14:31,649 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 05:14:31,649 INFO L85 PathProgramCache]: Analyzing trace with hash -2078565775, now seen corresponding path program 1 times [2025-02-06 05:14:31,649 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 05:14:31,649 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [117405177] [2025-02-06 05:14:31,649 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 05:14:31,649 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 05:14:35,641 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 25 statements into 1 equivalence classes. [2025-02-06 05:14:35,746 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 25 of 25 statements. [2025-02-06 05:14:35,748 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 05:14:35,748 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 05:14:36,229 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 05:14:36,229 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 05:14:36,229 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [117405177] [2025-02-06 05:14:36,229 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [117405177] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 05:14:36,229 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 05:14:36,229 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-06 05:14:36,230 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1774944025] [2025-02-06 05:14:36,230 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 05:14:36,230 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-06 05:14:36,230 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 05:14:36,234 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-06 05:14:36,234 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-06 05:14:36,235 INFO L87 Difference]: Start difference. First operand 137 states and 168 transitions. Second operand has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2025-02-06 05:14:36,335 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 05:14:36,335 INFO L93 Difference]: Finished difference Result 192 states and 238 transitions. [2025-02-06 05:14:36,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-06 05:14:36,337 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 25 [2025-02-06 05:14:36,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 05:14:36,338 INFO L225 Difference]: With dead ends: 192 [2025-02-06 05:14:36,338 INFO L226 Difference]: Without dead ends: 148 [2025-02-06 05:14:36,339 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-06 05:14:36,339 INFO L435 NwaCegarLoop]: 166 mSDtfsCounter, 2 mSDsluCounter, 162 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 328 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-02-06 05:14:36,339 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 328 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-06 05:14:36,340 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states. [2025-02-06 05:14:36,354 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 148. [2025-02-06 05:14:36,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 148 states, 91 states have (on average 1.164835164835165) internal successors, (106), 95 states have internal predecessors, (106), 40 states have call successors, (40), 16 states have call predecessors, (40), 16 states have return successors, (39), 39 states have call predecessors, (39), 39 states have call successors, (39) [2025-02-06 05:14:36,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 185 transitions. [2025-02-06 05:14:36,362 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 185 transitions. Word has length 25 [2025-02-06 05:14:36,362 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 05:14:36,362 INFO L471 AbstractCegarLoop]: Abstraction has 148 states and 185 transitions. [2025-02-06 05:14:36,363 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2025-02-06 05:14:36,363 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 185 transitions. [2025-02-06 05:14:36,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2025-02-06 05:14:36,363 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 05:14:36,363 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 05:14:36,364 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-02-06 05:14:36,364 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-06 05:14:36,364 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 05:14:36,364 INFO L85 PathProgramCache]: Analyzing trace with hash -1629139524, now seen corresponding path program 1 times [2025-02-06 05:14:36,364 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 05:14:36,364 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1425877601] [2025-02-06 05:14:36,364 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 05:14:36,364 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 05:14:39,895 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 26 statements into 1 equivalence classes. [2025-02-06 05:14:39,977 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 26 of 26 statements. [2025-02-06 05:14:39,978 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 05:14:39,978 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 05:14:40,325 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 05:14:40,326 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 05:14:40,326 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1425877601] [2025-02-06 05:14:40,326 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1425877601] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 05:14:40,326 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 05:14:40,326 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-06 05:14:40,326 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1598008863] [2025-02-06 05:14:40,326 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 05:14:40,326 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-06 05:14:40,327 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 05:14:40,328 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-06 05:14:40,328 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-06 05:14:40,328 INFO L87 Difference]: Start difference. First operand 148 states and 185 transitions. Second operand has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2025-02-06 05:14:40,398 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 05:14:40,399 INFO L93 Difference]: Finished difference Result 202 states and 250 transitions. [2025-02-06 05:14:40,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-06 05:14:40,399 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 26 [2025-02-06 05:14:40,399 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 05:14:40,401 INFO L225 Difference]: With dead ends: 202 [2025-02-06 05:14:40,401 INFO L226 Difference]: Without dead ends: 157 [2025-02-06 05:14:40,401 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-06 05:14:40,402 INFO L435 NwaCegarLoop]: 167 mSDtfsCounter, 2 mSDsluCounter, 163 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 330 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-02-06 05:14:40,402 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 330 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-06 05:14:40,402 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 157 states. [2025-02-06 05:14:40,415 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 157 to 157. [2025-02-06 05:14:40,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 157 states, 96 states have (on average 1.1458333333333333) internal successors, (110), 99 states have internal predecessors, (110), 44 states have call successors, (44), 16 states have call predecessors, (44), 16 states have return successors, (42), 42 states have call predecessors, (42), 42 states have call successors, (42) [2025-02-06 05:14:40,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 157 states and 196 transitions. [2025-02-06 05:14:40,420 INFO L78 Accepts]: Start accepts. Automaton has 157 states and 196 transitions. Word has length 26 [2025-02-06 05:14:40,421 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 05:14:40,421 INFO L471 AbstractCegarLoop]: Abstraction has 157 states and 196 transitions. [2025-02-06 05:14:40,421 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2025-02-06 05:14:40,421 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 196 transitions. [2025-02-06 05:14:40,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2025-02-06 05:14:40,424 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 05:14:40,425 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 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] [2025-02-06 05:14:40,425 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-02-06 05:14:40,425 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-06 05:14:40,425 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 05:14:40,428 INFO L85 PathProgramCache]: Analyzing trace with hash -1327688218, now seen corresponding path program 1 times [2025-02-06 05:14:40,428 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 05:14:40,428 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1154123689] [2025-02-06 05:14:40,428 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 05:14:40,428 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 05:14:44,202 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 129 statements into 1 equivalence classes. [2025-02-06 05:14:44,329 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 129 of 129 statements. [2025-02-06 05:14:44,329 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 05:14:44,329 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 05:14:45,409 INFO L134 CoverageAnalysis]: Checked inductivity of 106 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2025-02-06 05:14:45,410 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 05:14:45,410 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1154123689] [2025-02-06 05:14:45,410 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1154123689] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 05:14:45,410 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1251220776] [2025-02-06 05:14:45,410 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 05:14:45,410 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 05:14:45,410 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 05:14:45,412 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) [2025-02-06 05:14:45,415 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 [2025-02-06 05:14:49,675 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 129 statements into 1 equivalence classes. [2025-02-06 05:14:50,191 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 129 of 129 statements. [2025-02-06 05:14:50,191 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 05:14:50,191 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 05:14:50,211 INFO L256 TraceCheckSpWp]: Trace formula consists of 4485 conjuncts, 7 conjuncts are in the unsatisfiable core [2025-02-06 05:14:50,219 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 05:14:50,344 INFO L134 CoverageAnalysis]: Checked inductivity of 106 backedges. 54 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2025-02-06 05:14:50,344 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 05:14:50,344 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1251220776] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 05:14:50,344 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-06 05:14:50,344 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 5 [2025-02-06 05:14:50,344 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1300224147] [2025-02-06 05:14:50,344 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 05:14:50,345 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-06 05:14:50,345 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 05:14:50,345 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-06 05:14:50,345 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-02-06 05:14:50,352 INFO L87 Difference]: Start difference. First operand 157 states and 196 transitions. Second operand has 5 states, 5 states have (on average 13.8) internal successors, (69), 5 states have internal predecessors, (69), 2 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (19), 3 states have call predecessors, (19), 2 states have call successors, (19) [2025-02-06 05:14:50,578 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 05:14:50,578 INFO L93 Difference]: Finished difference Result 313 states and 397 transitions. [2025-02-06 05:14:50,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-06 05:14:50,579 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 5 states have internal predecessors, (69), 2 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (19), 3 states have call predecessors, (19), 2 states have call successors, (19) Word has length 129 [2025-02-06 05:14:50,580 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 05:14:50,582 INFO L225 Difference]: With dead ends: 313 [2025-02-06 05:14:50,582 INFO L226 Difference]: Without dead ends: 162 [2025-02-06 05:14:50,583 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 133 GetRequests, 130 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-02-06 05:14:50,583 INFO L435 NwaCegarLoop]: 164 mSDtfsCounter, 0 mSDsluCounter, 488 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 652 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-02-06 05:14:50,587 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 652 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-02-06 05:14:50,588 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162 states. [2025-02-06 05:14:50,597 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 162 to 162. [2025-02-06 05:14:50,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 162 states, 100 states have (on average 1.14) internal successors, (114), 103 states have internal predecessors, (114), 44 states have call successors, (44), 16 states have call predecessors, (44), 17 states have return successors, (43), 43 states have call predecessors, (43), 42 states have call successors, (43) [2025-02-06 05:14:50,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 162 states and 201 transitions. [2025-02-06 05:14:50,601 INFO L78 Accepts]: Start accepts. Automaton has 162 states and 201 transitions. Word has length 129 [2025-02-06 05:14:50,602 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 05:14:50,603 INFO L471 AbstractCegarLoop]: Abstraction has 162 states and 201 transitions. [2025-02-06 05:14:50,604 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 5 states have internal predecessors, (69), 2 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (19), 3 states have call predecessors, (19), 2 states have call successors, (19) [2025-02-06 05:14:50,604 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 201 transitions. [2025-02-06 05:14:50,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2025-02-06 05:14:50,608 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 05:14:50,608 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 05:14:50,635 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 [2025-02-06 05:14:50,812 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 05:14:50,812 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-06 05:14:50,813 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 05:14:50,816 INFO L85 PathProgramCache]: Analyzing trace with hash 246150362, now seen corresponding path program 1 times [2025-02-06 05:14:50,817 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 05:14:50,817 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [332816301] [2025-02-06 05:14:50,817 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 05:14:50,817 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 05:14:54,744 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 140 statements into 1 equivalence classes. [2025-02-06 05:14:54,831 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 140 of 140 statements. [2025-02-06 05:14:54,832 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 05:14:54,832 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 05:14:58,212 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 106 trivial. 0 not checked. [2025-02-06 05:14:58,212 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 05:14:58,212 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [332816301] [2025-02-06 05:14:58,212 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [332816301] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 05:14:58,212 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1505986527] [2025-02-06 05:14:58,212 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 05:14:58,212 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 05:14:58,213 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 05:14:58,215 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) [2025-02-06 05:14:58,216 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 [2025-02-06 05:15:02,704 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 140 statements into 1 equivalence classes. [2025-02-06 05:15:03,291 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 140 of 140 statements. [2025-02-06 05:15:03,291 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 05:15:03,291 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 05:15:03,318 INFO L256 TraceCheckSpWp]: Trace formula consists of 4491 conjuncts, 32 conjuncts are in the unsatisfiable core [2025-02-06 05:15:03,328 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 05:15:03,913 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2025-02-06 05:15:05,671 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 76 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2025-02-06 05:15:05,672 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 05:15:05,672 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1505986527] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 05:15:05,672 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-06 05:15:05,672 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [11] total 16 [2025-02-06 05:15:05,672 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1537832447] [2025-02-06 05:15:05,672 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 05:15:05,672 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2025-02-06 05:15:05,672 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 05:15:05,673 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2025-02-06 05:15:05,673 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=194, Unknown=0, NotChecked=0, Total=240 [2025-02-06 05:15:05,673 INFO L87 Difference]: Start difference. First operand 162 states and 201 transitions. Second operand has 12 states, 11 states have (on average 7.2727272727272725) internal successors, (80), 9 states have internal predecessors, (80), 4 states have call successors, (23), 3 states have call predecessors, (23), 5 states have return successors, (22), 5 states have call predecessors, (22), 4 states have call successors, (22) [2025-02-06 05:15:11,685 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 05:15:11,685 INFO L93 Difference]: Finished difference Result 390 states and 481 transitions. [2025-02-06 05:15:11,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2025-02-06 05:15:11,686 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 7.2727272727272725) internal successors, (80), 9 states have internal predecessors, (80), 4 states have call successors, (23), 3 states have call predecessors, (23), 5 states have return successors, (22), 5 states have call predecessors, (22), 4 states have call successors, (22) Word has length 140 [2025-02-06 05:15:11,687 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 05:15:11,689 INFO L225 Difference]: With dead ends: 390 [2025-02-06 05:15:11,690 INFO L226 Difference]: Without dead ends: 244 [2025-02-06 05:15:11,690 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 156 GetRequests, 136 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=87, Invalid=375, Unknown=0, NotChecked=0, Total=462 [2025-02-06 05:15:11,691 INFO L435 NwaCegarLoop]: 224 mSDtfsCounter, 161 mSDsluCounter, 1175 mSDsCounter, 0 mSdLazyCounter, 524 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 172 SdHoareTripleChecker+Valid, 1399 SdHoareTripleChecker+Invalid, 538 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 524 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2025-02-06 05:15:11,691 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [172 Valid, 1399 Invalid, 538 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 524 Invalid, 0 Unknown, 0 Unchecked, 5.1s Time] [2025-02-06 05:15:11,692 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 244 states. [2025-02-06 05:15:11,704 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 244 to 240. [2025-02-06 05:15:11,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 240 states, 152 states have (on average 1.138157894736842) internal successors, (173), 156 states have internal predecessors, (173), 58 states have call successors, (58), 27 states have call predecessors, (58), 29 states have return successors, (63), 57 states have call predecessors, (63), 56 states have call successors, (63) [2025-02-06 05:15:11,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 240 states to 240 states and 294 transitions. [2025-02-06 05:15:11,707 INFO L78 Accepts]: Start accepts. Automaton has 240 states and 294 transitions. Word has length 140 [2025-02-06 05:15:11,707 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 05:15:11,707 INFO L471 AbstractCegarLoop]: Abstraction has 240 states and 294 transitions. [2025-02-06 05:15:11,707 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 7.2727272727272725) internal successors, (80), 9 states have internal predecessors, (80), 4 states have call successors, (23), 3 states have call predecessors, (23), 5 states have return successors, (22), 5 states have call predecessors, (22), 4 states have call successors, (22) [2025-02-06 05:15:11,708 INFO L276 IsEmpty]: Start isEmpty. Operand 240 states and 294 transitions. [2025-02-06 05:15:11,710 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2025-02-06 05:15:11,710 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 05:15:11,710 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 05:15:11,730 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2025-02-06 05:15:11,913 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 05:15:11,913 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-06 05:15:11,914 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 05:15:11,914 INFO L85 PathProgramCache]: Analyzing trace with hash -92949376, now seen corresponding path program 1 times [2025-02-06 05:15:11,914 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 05:15:11,914 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [16339272] [2025-02-06 05:15:11,914 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 05:15:11,914 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 05:15:15,591 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 141 statements into 1 equivalence classes. [2025-02-06 05:15:15,689 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 141 of 141 statements. [2025-02-06 05:15:15,689 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 05:15:15,689 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 05:15:18,842 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 106 trivial. 0 not checked. [2025-02-06 05:15:18,842 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 05:15:18,842 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [16339272] [2025-02-06 05:15:18,842 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [16339272] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 05:15:18,842 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1730422820] [2025-02-06 05:15:18,842 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 05:15:18,842 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 05:15:18,842 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 05:15:18,844 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) [2025-02-06 05:15:18,846 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 [2025-02-06 05:15:23,447 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 141 statements into 1 equivalence classes. [2025-02-06 05:15:23,870 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 141 of 141 statements. [2025-02-06 05:15:23,870 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 05:15:23,870 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 05:15:23,894 INFO L256 TraceCheckSpWp]: Trace formula consists of 4493 conjuncts, 34 conjuncts are in the unsatisfiable core [2025-02-06 05:15:23,900 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 05:15:24,437 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2025-02-06 05:15:25,927 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 76 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2025-02-06 05:15:25,928 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 05:15:25,929 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1730422820] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 05:15:25,929 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-06 05:15:25,929 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [11] total 16 [2025-02-06 05:15:25,929 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [640526763] [2025-02-06 05:15:25,929 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 05:15:25,929 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2025-02-06 05:15:25,929 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 05:15:25,931 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2025-02-06 05:15:25,931 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=194, Unknown=0, NotChecked=0, Total=240 [2025-02-06 05:15:25,931 INFO L87 Difference]: Start difference. First operand 240 states and 294 transitions. Second operand has 12 states, 11 states have (on average 7.363636363636363) internal successors, (81), 9 states have internal predecessors, (81), 4 states have call successors, (23), 3 states have call predecessors, (23), 5 states have return successors, (22), 5 states have call predecessors, (22), 4 states have call successors, (22) [2025-02-06 05:15:31,833 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 05:15:31,833 INFO L93 Difference]: Finished difference Result 365 states and 447 transitions. [2025-02-06 05:15:31,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2025-02-06 05:15:31,834 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 7.363636363636363) internal successors, (81), 9 states have internal predecessors, (81), 4 states have call successors, (23), 3 states have call predecessors, (23), 5 states have return successors, (22), 5 states have call predecessors, (22), 4 states have call successors, (22) Word has length 141 [2025-02-06 05:15:31,836 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 05:15:31,838 INFO L225 Difference]: With dead ends: 365 [2025-02-06 05:15:31,838 INFO L226 Difference]: Without dead ends: 244 [2025-02-06 05:15:31,839 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 157 GetRequests, 137 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=87, Invalid=375, Unknown=0, NotChecked=0, Total=462 [2025-02-06 05:15:31,840 INFO L435 NwaCegarLoop]: 221 mSDtfsCounter, 151 mSDsluCounter, 1535 mSDsCounter, 0 mSdLazyCounter, 534 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 161 SdHoareTripleChecker+Valid, 1756 SdHoareTripleChecker+Invalid, 548 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 534 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2025-02-06 05:15:31,840 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [161 Valid, 1756 Invalid, 548 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 534 Invalid, 0 Unknown, 0 Unchecked, 5.0s Time] [2025-02-06 05:15:31,840 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 244 states. [2025-02-06 05:15:31,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 244 to 240. [2025-02-06 05:15:31,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 240 states, 152 states have (on average 1.138157894736842) internal successors, (173), 156 states have internal predecessors, (173), 58 states have call successors, (58), 27 states have call predecessors, (58), 29 states have return successors, (61), 57 states have call predecessors, (61), 56 states have call successors, (61) [2025-02-06 05:15:31,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 240 states to 240 states and 292 transitions. [2025-02-06 05:15:31,854 INFO L78 Accepts]: Start accepts. Automaton has 240 states and 292 transitions. Word has length 141 [2025-02-06 05:15:31,854 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 05:15:31,854 INFO L471 AbstractCegarLoop]: Abstraction has 240 states and 292 transitions. [2025-02-06 05:15:31,854 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 7.363636363636363) internal successors, (81), 9 states have internal predecessors, (81), 4 states have call successors, (23), 3 states have call predecessors, (23), 5 states have return successors, (22), 5 states have call predecessors, (22), 4 states have call successors, (22) [2025-02-06 05:15:31,854 INFO L276 IsEmpty]: Start isEmpty. Operand 240 states and 292 transitions. [2025-02-06 05:15:31,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2025-02-06 05:15:31,855 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 05:15:31,856 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 05:15:31,875 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2025-02-06 05:15:32,056 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 05:15:32,057 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-06 05:15:32,057 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 05:15:32,058 INFO L85 PathProgramCache]: Analyzing trace with hash -162725, now seen corresponding path program 1 times [2025-02-06 05:15:32,058 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 05:15:32,058 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2598421] [2025-02-06 05:15:32,058 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 05:15:32,058 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 05:15:36,081 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 140 statements into 1 equivalence classes. [2025-02-06 05:15:36,157 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 140 of 140 statements. [2025-02-06 05:15:36,157 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 05:15:36,157 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 05:15:37,034 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 106 trivial. 0 not checked. [2025-02-06 05:15:37,034 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 05:15:37,034 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2598421] [2025-02-06 05:15:37,034 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2598421] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 05:15:37,034 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [900193979] [2025-02-06 05:15:37,034 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 05:15:37,034 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 05:15:37,034 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 05:15:37,036 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) [2025-02-06 05:15:37,038 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 [2025-02-06 05:15:41,862 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 140 statements into 1 equivalence classes. [2025-02-06 05:15:42,281 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 140 of 140 statements. [2025-02-06 05:15:42,281 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 05:15:42,281 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 05:15:42,298 INFO L256 TraceCheckSpWp]: Trace formula consists of 4486 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-02-06 05:15:42,303 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 05:15:42,913 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 76 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2025-02-06 05:15:42,913 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 05:15:42,913 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [900193979] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 05:15:42,913 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-06 05:15:42,913 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [5] total 9 [2025-02-06 05:15:42,913 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [971371837] [2025-02-06 05:15:42,913 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 05:15:42,913 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-06 05:15:42,913 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 05:15:42,915 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-06 05:15:42,915 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2025-02-06 05:15:42,915 INFO L87 Difference]: Start difference. First operand 240 states and 292 transitions. Second operand has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 6 states have internal predecessors, (80), 3 states have call successors, (23), 2 states have call predecessors, (23), 3 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2025-02-06 05:15:43,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 05:15:43,983 INFO L93 Difference]: Finished difference Result 396 states and 488 transitions. [2025-02-06 05:15:43,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-06 05:15:43,984 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 6 states have internal predecessors, (80), 3 states have call successors, (23), 2 states have call predecessors, (23), 3 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) Word has length 140 [2025-02-06 05:15:43,984 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 05:15:43,985 INFO L225 Difference]: With dead ends: 396 [2025-02-06 05:15:43,985 INFO L226 Difference]: Without dead ends: 245 [2025-02-06 05:15:43,986 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 147 GetRequests, 137 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2025-02-06 05:15:43,986 INFO L435 NwaCegarLoop]: 149 mSDtfsCounter, 169 mSDsluCounter, 415 mSDsCounter, 0 mSdLazyCounter, 93 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 169 SdHoareTripleChecker+Valid, 564 SdHoareTripleChecker+Invalid, 125 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 93 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2025-02-06 05:15:43,987 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [169 Valid, 564 Invalid, 125 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 93 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2025-02-06 05:15:43,987 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 245 states. [2025-02-06 05:15:44,005 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 245 to 245. [2025-02-06 05:15:44,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 245 states, 155 states have (on average 1.135483870967742) internal successors, (176), 160 states have internal predecessors, (176), 59 states have call successors, (59), 27 states have call predecessors, (59), 30 states have return successors, (66), 58 states have call predecessors, (66), 57 states have call successors, (66) [2025-02-06 05:15:44,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 245 states to 245 states and 301 transitions. [2025-02-06 05:15:44,009 INFO L78 Accepts]: Start accepts. Automaton has 245 states and 301 transitions. Word has length 140 [2025-02-06 05:15:44,009 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 05:15:44,009 INFO L471 AbstractCegarLoop]: Abstraction has 245 states and 301 transitions. [2025-02-06 05:15:44,009 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 6 states have internal predecessors, (80), 3 states have call successors, (23), 2 states have call predecessors, (23), 3 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2025-02-06 05:15:44,009 INFO L276 IsEmpty]: Start isEmpty. Operand 245 states and 301 transitions. [2025-02-06 05:15:44,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2025-02-06 05:15:44,012 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 05:15:44,012 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 05:15:44,030 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2025-02-06 05:15:44,212 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2025-02-06 05:15:44,213 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-06 05:15:44,213 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 05:15:44,214 INFO L85 PathProgramCache]: Analyzing trace with hash 1778405291, now seen corresponding path program 1 times [2025-02-06 05:15:44,214 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 05:15:44,214 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2027603271] [2025-02-06 05:15:44,214 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 05:15:44,214 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 05:15:48,153 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 146 statements into 1 equivalence classes. [2025-02-06 05:15:48,223 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 146 of 146 statements. [2025-02-06 05:15:48,224 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 05:15:48,224 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 05:15:49,808 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 107 trivial. 0 not checked. [2025-02-06 05:15:49,808 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 05:15:49,808 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2027603271] [2025-02-06 05:15:49,808 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2027603271] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 05:15:49,808 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [944624339] [2025-02-06 05:15:49,808 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 05:15:49,808 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 05:15:49,808 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 05:15:49,810 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 05:15:49,811 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process