./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/aws-c-common/aws_hash_table_move_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_move_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 8f8d49a5761bf3d84140233b4dcef84d471a160de32d47830642b1223a2a4e54 --- Real Ultimate output --- This is Ultimate 0.3.0-?-c00e63d-m [2025-02-06 05:13:51,547 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-06 05:13:51,612 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2025-02-06 05:13:51,617 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-06 05:13:51,617 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-06 05:13:51,642 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-06 05:13:51,643 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-06 05:13:51,644 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-06 05:13:51,644 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-06 05:13:51,644 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-06 05:13:51,645 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-06 05:13:51,645 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-06 05:13:51,645 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-06 05:13:51,645 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-06 05:13:51,646 INFO L153 SettingsManager]: * Use SBE=true [2025-02-06 05:13:51,646 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-06 05:13:51,646 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-06 05:13:51,646 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-06 05:13:51,646 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-06 05:13:51,646 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-06 05:13:51,646 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-06 05:13:51,647 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-06 05:13:51,647 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-06 05:13:51,647 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-06 05:13:51,647 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-06 05:13:51,647 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-06 05:13:51,647 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-06 05:13:51,647 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-06 05:13:51,647 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-06 05:13:51,647 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 05:13:51,648 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-06 05:13:51,648 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-06 05:13:51,648 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-02-06 05:13:51,648 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-02-06 05:13:51,648 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-06 05:13:51,648 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-06 05:13:51,648 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-06 05:13:51,649 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-06 05:13:51,649 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-06 05:13:51,649 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-06 05:13:51,649 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 -> 8f8d49a5761bf3d84140233b4dcef84d471a160de32d47830642b1223a2a4e54 [2025-02-06 05:13:51,877 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-06 05:13:51,887 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-06 05:13:51,893 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-06 05:13:51,894 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-06 05:13:51,894 INFO L274 PluginConnector]: CDTParser initialized [2025-02-06 05:13:51,898 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_hash_table_move_harness.i [2025-02-06 05:13:53,017 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/91a19bf00/dfb649de44db4effa16a6221285191b5/FLAGe024e861e [2025-02-06 05:13:53,513 INFO L384 CDTParser]: Found 1 translation units. [2025-02-06 05:13:53,514 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_hash_table_move_harness.i [2025-02-06 05:13:53,560 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/91a19bf00/dfb649de44db4effa16a6221285191b5/FLAGe024e861e [2025-02-06 05:13:53,576 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/91a19bf00/dfb649de44db4effa16a6221285191b5 [2025-02-06 05:13:53,578 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-06 05:13:53,579 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-06 05:13:53,580 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-06 05:13:53,580 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-06 05:13:53,583 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-06 05:13:53,584 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 05:13:53" (1/1) ... [2025-02-06 05:13:53,586 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@d4e4f38 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 05:13:53, skipping insertion in model container [2025-02-06 05:13:53,586 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 05:13:53" (1/1) ... [2025-02-06 05:13:53,669 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-06 05:13:53,889 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_move_harness.i[4493,4506] [2025-02-06 05:13:53,899 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_move_harness.i[4553,4566] [2025-02-06 05:13:54,530 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:13:54,531 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:13:54,531 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:13:54,532 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:13:54,532 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:13:54,541 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:13:54,541 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:13:54,542 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:13:54,543 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:13:54,544 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:13:54,545 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:13:54,545 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:13:54,545 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:13:56,001 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:13:56,002 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:13:56,039 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:13:56,040 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:13:56,049 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:13:56,051 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:13:56,071 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:13:56,072 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:13:56,073 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:13:56,074 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:13:56,074 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:13:56,074 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:13:56,075 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:13:56,145 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_move_harness.i[227509,227522] [2025-02-06 05:13:56,147 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 05:13:56,178 INFO L200 MainTranslator]: Completed pre-run [2025-02-06 05:13:56,192 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_move_harness.i[4493,4506] [2025-02-06 05:13:56,192 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_move_harness.i[4553,4566] [2025-02-06 05:13:56,218 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:13:56,219 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:13:56,219 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:13:56,220 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:13:56,220 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:13:56,225 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:13:56,229 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:13:56,230 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:13:56,230 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:13:56,232 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:13:56,233 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:13:56,233 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:13:56,233 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:13:56,293 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [7558-7569] [2025-02-06 05:13:56,348 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:13:56,349 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:13:56,353 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:13:56,354 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:13:56,355 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:13:56,355 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:13:56,361 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:13:56,361 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:13:56,362 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:13:56,362 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:13:56,362 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:13:56,363 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:13:56,363 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:13:56,376 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_move_harness.i[227509,227522] [2025-02-06 05:13:56,376 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 05:13:56,587 INFO L204 MainTranslator]: Completed translation [2025-02-06 05:13:56,588 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 05:13:56 WrapperNode [2025-02-06 05:13:56,588 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-06 05:13:56,589 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-06 05:13:56,589 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-06 05:13:56,589 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-06 05:13:56,595 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 05:13:56" (1/1) ... [2025-02-06 05:13:56,669 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 05:13:56" (1/1) ... [2025-02-06 05:13:56,720 INFO L138 Inliner]: procedures = 763, calls = 2427, calls flagged for inlining = 70, calls inlined = 12, statements flattened = 620 [2025-02-06 05:13:56,721 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-06 05:13:56,721 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-06 05:13:56,721 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-06 05:13:56,721 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-06 05:13:56,737 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 05:13:56" (1/1) ... [2025-02-06 05:13:56,737 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 05:13:56" (1/1) ... [2025-02-06 05:13:56,748 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 05:13:56" (1/1) ... [2025-02-06 05:13:56,802 INFO L175 MemorySlicer]: Split 281 memory accesses to 8 slices as follows [2, 238, 8, 3, 17, 6, 2, 5]. 85 percent of accesses are in the largest equivalence class. The 13 initializations are split as follows [2, 6, 0, 0, 0, 0, 0, 5]. The 240 writes are split as follows [0, 232, 3, 1, 1, 2, 1, 0]. [2025-02-06 05:13:56,802 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 05:13:56" (1/1) ... [2025-02-06 05:13:56,802 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 05:13:56" (1/1) ... [2025-02-06 05:13:56,837 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 05:13:56" (1/1) ... [2025-02-06 05:13:56,843 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 05:13:56" (1/1) ... [2025-02-06 05:13:56,853 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 05:13:56" (1/1) ... [2025-02-06 05:13:56,859 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 05:13:56" (1/1) ... [2025-02-06 05:13:56,867 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-06 05:13:56,868 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-06 05:13:56,868 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-06 05:13:56,868 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-06 05:13:56,869 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 05:13:56" (1/1) ... [2025-02-06 05:13:56,876 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 05:13:56,893 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 05:13:56,906 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 05:13:56,912 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 05:13:56,928 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#0 [2025-02-06 05:13:56,928 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#1 [2025-02-06 05:13:56,928 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#2 [2025-02-06 05:13:56,928 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#3 [2025-02-06 05:13:56,928 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#4 [2025-02-06 05:13:56,928 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#5 [2025-02-06 05:13:56,928 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#6 [2025-02-06 05:13:56,928 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#7 [2025-02-06 05:13:56,928 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-02-06 05:13:56,928 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2025-02-06 05:13:56,928 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2025-02-06 05:13:56,929 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2025-02-06 05:13:56,929 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2025-02-06 05:13:56,929 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2025-02-06 05:13:56,929 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2025-02-06 05:13:56,929 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#6 [2025-02-06 05:13:56,929 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#7 [2025-02-06 05:13:56,929 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-02-06 05:13:56,929 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-02-06 05:13:56,929 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2025-02-06 05:13:56,929 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2025-02-06 05:13:56,929 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2025-02-06 05:13:56,929 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2025-02-06 05:13:56,929 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2025-02-06 05:13:56,929 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2025-02-06 05:13:56,929 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2025-02-06 05:13:56,930 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2025-02-06 05:13:56,930 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2025-02-06 05:13:56,931 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2025-02-06 05:13:56,931 INFO L130 BoogieDeclarations]: Found specification of procedure hash_table_state_is_valid [2025-02-06 05:13:56,931 INFO L138 BoogieDeclarations]: Found implementation of procedure hash_table_state_is_valid [2025-02-06 05:13:56,931 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-02-06 05:13:56,931 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-06 05:13:56,931 INFO L130 BoogieDeclarations]: Found specification of procedure hash_table_state_required_bytes [2025-02-06 05:13:56,931 INFO L138 BoogieDeclarations]: Found implementation of procedure hash_table_state_required_bytes [2025-02-06 05:13:56,931 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2025-02-06 05:13:56,931 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2025-02-06 05:13:56,931 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2025-02-06 05:13:56,931 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2025-02-06 05:13:56,931 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2025-02-06 05:13:56,931 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2025-02-06 05:13:56,931 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2025-02-06 05:13:56,931 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#7 [2025-02-06 05:13:56,931 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-06 05:13:56,932 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-06 05:13:56,932 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2025-02-06 05:13:56,932 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2025-02-06 05:13:56,932 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2025-02-06 05:13:56,932 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2025-02-06 05:13:56,932 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2025-02-06 05:13:56,932 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2025-02-06 05:13:56,933 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2025-02-06 05:13:56,933 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2025-02-06 05:13:56,933 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2025-02-06 05:13:56,934 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2025-02-06 05:13:56,934 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#6 [2025-02-06 05:13:56,934 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#7 [2025-02-06 05:13:56,934 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#0 [2025-02-06 05:13:56,934 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#1 [2025-02-06 05:13:56,934 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#2 [2025-02-06 05:13:56,934 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#3 [2025-02-06 05:13:56,934 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#4 [2025-02-06 05:13:56,934 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#5 [2025-02-06 05:13:56,934 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#6 [2025-02-06 05:13:56,934 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#7 [2025-02-06 05:13:56,934 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#0 [2025-02-06 05:13:56,934 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#1 [2025-02-06 05:13:56,934 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#2 [2025-02-06 05:13:56,934 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#3 [2025-02-06 05:13:56,934 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#4 [2025-02-06 05:13:56,934 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#5 [2025-02-06 05:13:56,934 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#6 [2025-02-06 05:13:56,934 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#7 [2025-02-06 05:13:56,934 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2025-02-06 05:13:56,934 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2025-02-06 05:13:56,934 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-02-06 05:13:56,934 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_plus [2025-02-06 05:13:56,934 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_plus [2025-02-06 05:13:56,934 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2025-02-06 05:13:56,934 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2025-02-06 05:13:56,934 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2025-02-06 05:13:56,934 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2025-02-06 05:13:56,934 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2025-02-06 05:13:56,934 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2025-02-06 05:13:56,934 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2025-02-06 05:13:56,934 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#7 [2025-02-06 05:13:56,934 INFO L130 BoogieDeclarations]: Found specification of procedure aws_hash_table_is_valid [2025-02-06 05:13:56,934 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_hash_table_is_valid [2025-02-06 05:13:56,934 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2025-02-06 05:13:56,934 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2025-02-06 05:13:56,934 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2025-02-06 05:13:56,934 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2025-02-06 05:13:56,934 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2025-02-06 05:13:56,934 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2025-02-06 05:13:56,934 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#6 [2025-02-06 05:13:56,935 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#7 [2025-02-06 05:13:56,935 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2025-02-06 05:13:56,935 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2025-02-06 05:13:56,935 INFO L130 BoogieDeclarations]: Found specification of procedure aws_add_size_checked [2025-02-06 05:13:56,935 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_add_size_checked [2025-02-06 05:13:56,935 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2025-02-06 05:13:56,935 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2025-02-06 05:13:56,935 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-02-06 05:13:56,935 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-02-06 05:13:56,935 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2025-02-06 05:13:56,935 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2025-02-06 05:13:56,935 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2025-02-06 05:13:56,935 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2025-02-06 05:13:56,935 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2025-02-06 05:13:56,935 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2025-02-06 05:13:56,935 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-02-06 05:13:56,935 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-02-06 05:13:56,935 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-02-06 05:13:56,935 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2025-02-06 05:13:56,935 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2025-02-06 05:13:56,935 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2025-02-06 05:13:56,935 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2025-02-06 05:13:56,935 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2025-02-06 05:13:56,935 INFO L130 BoogieDeclarations]: Found specification of procedure aws_is_power_of_two [2025-02-06 05:13:56,935 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_is_power_of_two [2025-02-06 05:13:57,209 INFO L257 CfgBuilder]: Building ICFG [2025-02-06 05:13:57,211 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-06 05:13:57,248 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L6947: havoc #t~malloc588.base, #t~malloc588.offset; [2025-02-06 05:13:57,279 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L2590: havoc #t~ret57#1; [2025-02-06 05:13:57,281 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L266: havoc #t~nondet9; [2025-02-06 05:13:57,385 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 05:13:57,411 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 05:13:57,438 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L2630: havoc #t~bitwise60;havoc #t~short61; [2025-02-06 05:13:57,470 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L2617: havoc #t~ret59#1; [2025-02-06 05:14:02,573 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L263: havoc nondet_size_t_#t~nondet6#1; [2025-02-06 05:14:02,630 INFO L? ?]: Removed 149 outVars from TransFormulas that were not future-live. [2025-02-06 05:14:02,632 INFO L308 CfgBuilder]: Performing block encoding [2025-02-06 05:14:02,654 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-06 05:14:02,654 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-06 05:14:02,654 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 05:14:02 BoogieIcfgContainer [2025-02-06 05:14:02,654 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-06 05:14:02,656 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-06 05:14:02,659 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-06 05:14:02,667 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-06 05:14:02,668 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.02 05:13:53" (1/3) ... [2025-02-06 05:14:02,668 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6cec698b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.02 05:14:02, skipping insertion in model container [2025-02-06 05:14:02,668 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 05:13:56" (2/3) ... [2025-02-06 05:14:02,668 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6cec698b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.02 05:14:02, skipping insertion in model container [2025-02-06 05:14:02,668 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 05:14:02" (3/3) ... [2025-02-06 05:14:02,669 INFO L128 eAbstractionObserver]: Analyzing ICFG aws_hash_table_move_harness.i [2025-02-06 05:14:02,689 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-06 05:14:02,691 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG aws_hash_table_move_harness.i that has 22 procedures, 161 locations, 1 initial locations, 9 loop locations, and 1 error locations. [2025-02-06 05:14:02,739 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-06 05:14:02,749 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;@7e0b28a2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-06 05:14:02,750 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-02-06 05:14:02,754 INFO L276 IsEmpty]: Start isEmpty. Operand has 133 states, 85 states have (on average 1.2) internal successors, (102), 86 states have internal predecessors, (102), 32 states have call successors, (32), 14 states have call predecessors, (32), 14 states have return successors, (32), 32 states have call predecessors, (32), 32 states have call successors, (32) [2025-02-06 05:14:02,763 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2025-02-06 05:14:02,764 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 05:14:02,764 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 3, 3, 3, 3, 3, 3, 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] [2025-02-06 05:14:02,765 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-06 05:14:02,769 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 05:14:02,769 INFO L85 PathProgramCache]: Analyzing trace with hash 662307697, now seen corresponding path program 1 times [2025-02-06 05:14:02,774 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 05:14:02,779 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2062972271] [2025-02-06 05:14:02,779 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 05:14:02,779 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 05:14:07,334 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 141 statements into 1 equivalence classes. [2025-02-06 05:14:07,645 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 141 of 141 statements. [2025-02-06 05:14:07,646 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 05:14:07,646 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 05:14:08,067 INFO L134 CoverageAnalysis]: Checked inductivity of 216 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 198 trivial. 0 not checked. [2025-02-06 05:14:08,069 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 05:14:08,069 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2062972271] [2025-02-06 05:14:08,069 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2062972271] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 05:14:08,070 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [425657667] [2025-02-06 05:14:08,070 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 05:14:08,070 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 05:14:08,070 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 05:14:08,072 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 05:14:08,074 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 05:14:12,297 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 141 statements into 1 equivalence classes. [2025-02-06 05:14:12,871 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 141 of 141 statements. [2025-02-06 05:14:12,871 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 05:14:12,871 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 05:14:12,895 INFO L256 TraceCheckSpWp]: Trace formula consists of 4416 conjuncts, 1 conjuncts are in the unsatisfiable core [2025-02-06 05:14:12,904 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 05:14:12,919 INFO L134 CoverageAnalysis]: Checked inductivity of 216 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 198 trivial. 0 not checked. [2025-02-06 05:14:12,919 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 05:14:12,920 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [425657667] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 05:14:12,920 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-06 05:14:12,920 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2025-02-06 05:14:12,921 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [641352707] [2025-02-06 05:14:12,922 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 05:14:12,924 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-02-06 05:14:12,924 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 05:14:12,936 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-02-06 05:14:12,936 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-02-06 05:14:12,938 INFO L87 Difference]: Start difference. First operand has 133 states, 85 states have (on average 1.2) internal successors, (102), 86 states have internal predecessors, (102), 32 states have call successors, (32), 14 states have call predecessors, (32), 14 states have return successors, (32), 32 states have call predecessors, (32), 32 states have call successors, (32) Second operand has 2 states, 2 states have (on average 24.5) internal successors, (49), 2 states have internal predecessors, (49), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2025-02-06 05:14:12,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 05:14:12,972 INFO L93 Difference]: Finished difference Result 258 states and 345 transitions. [2025-02-06 05:14:12,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-02-06 05:14:12,974 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 24.5) internal successors, (49), 2 states have internal predecessors, (49), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 141 [2025-02-06 05:14:12,974 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 05:14:12,979 INFO L225 Difference]: With dead ends: 258 [2025-02-06 05:14:12,979 INFO L226 Difference]: Without dead ends: 127 [2025-02-06 05:14:12,982 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 142 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 05:14:12,984 INFO L435 NwaCegarLoop]: 160 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, 160 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 05:14:12,984 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 160 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-06 05:14:12,994 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127 states. [2025-02-06 05:14:13,009 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127 to 127. [2025-02-06 05:14:13,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 127 states, 80 states have (on average 1.15) internal successors, (92), 81 states have internal predecessors, (92), 32 states have call successors, (32), 14 states have call predecessors, (32), 14 states have return successors, (31), 31 states have call predecessors, (31), 31 states have call successors, (31) [2025-02-06 05:14:13,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 127 states and 155 transitions. [2025-02-06 05:14:13,016 INFO L78 Accepts]: Start accepts. Automaton has 127 states and 155 transitions. Word has length 141 [2025-02-06 05:14:13,016 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 05:14:13,016 INFO L471 AbstractCegarLoop]: Abstraction has 127 states and 155 transitions. [2025-02-06 05:14:13,016 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 24.5) internal successors, (49), 2 states have internal predecessors, (49), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2025-02-06 05:14:13,016 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 155 transitions. [2025-02-06 05:14:13,019 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2025-02-06 05:14:13,019 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 05:14:13,019 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 05:14:13,036 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 05:14:13,220 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2025-02-06 05:14:13,221 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-06 05:14:13,221 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 05:14:13,222 INFO L85 PathProgramCache]: Analyzing trace with hash 634608616, now seen corresponding path program 1 times [2025-02-06 05:14:13,222 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 05:14:13,222 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [186138935] [2025-02-06 05:14:13,222 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 05:14:13,222 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 05:14:17,130 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 148 statements into 1 equivalence classes. [2025-02-06 05:14:17,247 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 148 of 148 statements. [2025-02-06 05:14:17,247 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 05:14:17,247 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 05:14:18,371 INFO L134 CoverageAnalysis]: Checked inductivity of 216 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 209 trivial. 0 not checked. [2025-02-06 05:14:18,372 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 05:14:18,372 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [186138935] [2025-02-06 05:14:18,372 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [186138935] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 05:14:18,372 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [542828308] [2025-02-06 05:14:18,372 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 05:14:18,372 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 05:14:18,372 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 05:14:18,377 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 05:14:18,379 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 05:14:22,910 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 148 statements into 1 equivalence classes. [2025-02-06 05:14:23,401 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 148 of 148 statements. [2025-02-06 05:14:23,402 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 05:14:23,402 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 05:14:23,424 INFO L256 TraceCheckSpWp]: Trace formula consists of 4442 conjuncts, 7 conjuncts are in the unsatisfiable core [2025-02-06 05:14:23,430 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 05:14:23,562 INFO L134 CoverageAnalysis]: Checked inductivity of 216 backedges. 121 proven. 0 refuted. 0 times theorem prover too weak. 95 trivial. 0 not checked. [2025-02-06 05:14:23,562 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 05:14:23,562 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [542828308] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 05:14:23,562 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-06 05:14:23,562 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 5 [2025-02-06 05:14:23,562 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [983689377] [2025-02-06 05:14:23,562 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 05:14:23,563 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-06 05:14:23,563 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 05:14:23,564 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-06 05:14:23,564 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-02-06 05:14:23,564 INFO L87 Difference]: Start difference. First operand 127 states and 155 transitions. Second operand has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 2 states have call successors, (22), 2 states have call predecessors, (22), 3 states have return successors, (22), 3 states have call predecessors, (22), 2 states have call successors, (22) [2025-02-06 05:14:23,778 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 05:14:23,779 INFO L93 Difference]: Finished difference Result 247 states and 302 transitions. [2025-02-06 05:14:23,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-06 05:14:23,780 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 2 states have call successors, (22), 2 states have call predecessors, (22), 3 states have return successors, (22), 3 states have call predecessors, (22), 2 states have call successors, (22) Word has length 148 [2025-02-06 05:14:23,780 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 05:14:23,782 INFO L225 Difference]: With dead ends: 247 [2025-02-06 05:14:23,782 INFO L226 Difference]: Without dead ends: 132 [2025-02-06 05:14:23,783 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 152 GetRequests, 149 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 05:14:23,783 INFO L435 NwaCegarLoop]: 151 mSDtfsCounter, 0 mSDsluCounter, 449 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 600 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 05:14:23,783 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 600 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-02-06 05:14:23,784 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132 states. [2025-02-06 05:14:23,792 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132 to 132. [2025-02-06 05:14:23,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 132 states, 84 states have (on average 1.1428571428571428) internal successors, (96), 85 states have internal predecessors, (96), 32 states have call successors, (32), 14 states have call predecessors, (32), 15 states have return successors, (32), 32 states have call predecessors, (32), 31 states have call successors, (32) [2025-02-06 05:14:23,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 160 transitions. [2025-02-06 05:14:23,794 INFO L78 Accepts]: Start accepts. Automaton has 132 states and 160 transitions. Word has length 148 [2025-02-06 05:14:23,795 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 05:14:23,795 INFO L471 AbstractCegarLoop]: Abstraction has 132 states and 160 transitions. [2025-02-06 05:14:23,796 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 2 states have call successors, (22), 2 states have call predecessors, (22), 3 states have return successors, (22), 3 states have call predecessors, (22), 2 states have call successors, (22) [2025-02-06 05:14:23,796 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 160 transitions. [2025-02-06 05:14:23,798 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2025-02-06 05:14:23,798 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 05:14:23,798 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 3, 3, 3, 3, 3, 3, 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] [2025-02-06 05:14:23,815 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 05:14:23,998 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 05:14:23,999 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-06 05:14:24,000 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 05:14:24,004 INFO L85 PathProgramCache]: Analyzing trace with hash 2025554440, now seen corresponding path program 1 times [2025-02-06 05:14:24,004 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 05:14:24,004 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [240298827] [2025-02-06 05:14:24,004 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 05:14:24,005 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 05:14:27,882 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 160 statements into 1 equivalence classes. [2025-02-06 05:14:27,994 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 160 of 160 statements. [2025-02-06 05:14:27,995 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 05:14:27,995 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 05:14:31,498 INFO L134 CoverageAnalysis]: Checked inductivity of 222 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 210 trivial. 0 not checked. [2025-02-06 05:14:31,499 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 05:14:31,499 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [240298827] [2025-02-06 05:14:31,499 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [240298827] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 05:14:31,499 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [862232416] [2025-02-06 05:14:31,499 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 05:14:31,499 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 05:14:31,499 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 05:14:31,502 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 05:14:31,504 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 05:14:35,679 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 160 statements into 1 equivalence classes. [2025-02-06 05:14:36,133 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 160 of 160 statements. [2025-02-06 05:14:36,133 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 05:14:36,133 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 05:14:36,154 INFO L256 TraceCheckSpWp]: Trace formula consists of 4450 conjuncts, 40 conjuncts are in the unsatisfiable core [2025-02-06 05:14:36,161 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 05:14:37,557 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 05:14:44,648 INFO L134 CoverageAnalysis]: Checked inductivity of 222 backedges. 157 proven. 0 refuted. 0 times theorem prover too weak. 65 trivial. 0 not checked. [2025-02-06 05:14:44,649 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 05:14:44,649 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [862232416] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 05:14:44,649 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-06 05:14:44,649 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [10] total 19 [2025-02-06 05:14:44,649 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [969523570] [2025-02-06 05:14:44,649 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 05:14:44,649 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2025-02-06 05:14:44,649 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 05:14:44,650 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2025-02-06 05:14:44,650 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=285, Unknown=0, NotChecked=0, Total=342 [2025-02-06 05:14:44,651 INFO L87 Difference]: Start difference. First operand 132 states and 160 transitions. Second operand has 12 states, 11 states have (on average 8.0) internal successors, (88), 11 states have internal predecessors, (88), 6 states have call successors, (26), 3 states have call predecessors, (26), 5 states have return successors, (25), 7 states have call predecessors, (25), 6 states have call successors, (25) [2025-02-06 05:14:52,413 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2025-02-06 05:14:56,478 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2025-02-06 05:14:57,256 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 05:14:57,256 INFO L93 Difference]: Finished difference Result 335 states and 402 transitions. [2025-02-06 05:14:57,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-02-06 05:14:57,257 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 8.0) internal successors, (88), 11 states have internal predecessors, (88), 6 states have call successors, (26), 3 states have call predecessors, (26), 5 states have return successors, (25), 7 states have call predecessors, (25), 6 states have call successors, (25) Word has length 160 [2025-02-06 05:14:57,257 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 05:14:57,261 INFO L225 Difference]: With dead ends: 335 [2025-02-06 05:14:57,261 INFO L226 Difference]: Without dead ends: 227 [2025-02-06 05:14:57,264 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 172 GetRequests, 138 SyntacticMatches, 14 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 145 ImplicationChecksByTransitivity, 6.9s TimeCoverageRelationStatistics Valid=84, Invalid=378, Unknown=0, NotChecked=0, Total=462 [2025-02-06 05:14:57,264 INFO L435 NwaCegarLoop]: 199 mSDtfsCounter, 85 mSDsluCounter, 1022 mSDsCounter, 0 mSdLazyCounter, 370 mSolverCounterSat, 7 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 93 SdHoareTripleChecker+Valid, 1221 SdHoareTripleChecker+Invalid, 379 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 370 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.0s IncrementalHoareTripleChecker+Time [2025-02-06 05:14:57,265 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [93 Valid, 1221 Invalid, 379 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 370 Invalid, 2 Unknown, 0 Unchecked, 12.0s Time] [2025-02-06 05:14:57,266 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 227 states. [2025-02-06 05:14:57,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 227 to 222. [2025-02-06 05:14:57,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 222 states, 147 states have (on average 1.163265306122449) internal successors, (171), 150 states have internal predecessors, (171), 45 states have call successors, (45), 25 states have call predecessors, (45), 29 states have return successors, (48), 46 states have call predecessors, (48), 43 states have call successors, (48) [2025-02-06 05:14:57,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 222 states to 222 states and 264 transitions. [2025-02-06 05:14:57,284 INFO L78 Accepts]: Start accepts. Automaton has 222 states and 264 transitions. Word has length 160 [2025-02-06 05:14:57,285 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 05:14:57,285 INFO L471 AbstractCegarLoop]: Abstraction has 222 states and 264 transitions. [2025-02-06 05:14:57,285 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 8.0) internal successors, (88), 11 states have internal predecessors, (88), 6 states have call successors, (26), 3 states have call predecessors, (26), 5 states have return successors, (25), 7 states have call predecessors, (25), 6 states have call successors, (25) [2025-02-06 05:14:57,285 INFO L276 IsEmpty]: Start isEmpty. Operand 222 states and 264 transitions. [2025-02-06 05:14:57,287 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2025-02-06 05:14:57,289 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 05:14:57,289 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 3, 3, 3, 3, 3, 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] [2025-02-06 05:14:57,306 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 05:14:57,493 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 05:14:57,493 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-06 05:14:57,494 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 05:14:57,494 INFO L85 PathProgramCache]: Analyzing trace with hash -426303896, now seen corresponding path program 1 times [2025-02-06 05:14:57,494 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 05:14:57,494 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1045474548] [2025-02-06 05:14:57,494 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 05:14:57,494 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 05:15:01,254 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 160 statements into 1 equivalence classes. [2025-02-06 05:15:01,351 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 160 of 160 statements. [2025-02-06 05:15:01,351 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 05:15:01,352 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 05:15:02,200 INFO L134 CoverageAnalysis]: Checked inductivity of 222 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 210 trivial. 0 not checked. [2025-02-06 05:15:02,201 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 05:15:02,204 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1045474548] [2025-02-06 05:15:02,204 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1045474548] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 05:15:02,204 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1671761725] [2025-02-06 05:15:02,204 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 05:15:02,204 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 05:15:02,204 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 05:15:02,209 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 05:15:02,213 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 05:15:06,782 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 160 statements into 1 equivalence classes. [2025-02-06 05:15:07,266 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 160 of 160 statements. [2025-02-06 05:15:07,266 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 05:15:07,266 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 05:15:07,285 INFO L256 TraceCheckSpWp]: Trace formula consists of 4440 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-02-06 05:15:07,291 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 05:15:08,180 INFO L134 CoverageAnalysis]: Checked inductivity of 222 backedges. 131 proven. 0 refuted. 0 times theorem prover too weak. 91 trivial. 0 not checked. [2025-02-06 05:15:08,180 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 05:15:08,180 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1671761725] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 05:15:08,180 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-06 05:15:08,180 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [5] total 9 [2025-02-06 05:15:08,181 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2052899917] [2025-02-06 05:15:08,181 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 05:15:08,181 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-06 05:15:08,181 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 05:15:08,182 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-06 05:15:08,182 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2025-02-06 05:15:08,182 INFO L87 Difference]: Start difference. First operand 222 states and 264 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, (26), 2 states have call predecessors, (26), 3 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) [2025-02-06 05:15:09,394 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 05:15:09,394 INFO L93 Difference]: Finished difference Result 388 states and 469 transitions. [2025-02-06 05:15:09,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-06 05:15:09,395 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, (26), 2 states have call predecessors, (26), 3 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) Word has length 160 [2025-02-06 05:15:09,395 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 05:15:09,397 INFO L225 Difference]: With dead ends: 388 [2025-02-06 05:15:09,397 INFO L226 Difference]: Without dead ends: 234 [2025-02-06 05:15:09,398 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 167 GetRequests, 157 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2025-02-06 05:15:09,398 INFO L435 NwaCegarLoop]: 131 mSDtfsCounter, 151 mSDsluCounter, 230 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 151 SdHoareTripleChecker+Valid, 361 SdHoareTripleChecker+Invalid, 121 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 79 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2025-02-06 05:15:09,399 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [151 Valid, 361 Invalid, 121 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 79 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2025-02-06 05:15:09,400 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 234 states. [2025-02-06 05:15:09,416 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 234 to 227. [2025-02-06 05:15:09,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 227 states, 150 states have (on average 1.16) internal successors, (174), 154 states have internal predecessors, (174), 46 states have call successors, (46), 25 states have call predecessors, (46), 30 states have return successors, (52), 47 states have call predecessors, (52), 44 states have call successors, (52) [2025-02-06 05:15:09,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 227 states to 227 states and 272 transitions. [2025-02-06 05:15:09,421 INFO L78 Accepts]: Start accepts. Automaton has 227 states and 272 transitions. Word has length 160 [2025-02-06 05:15:09,422 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 05:15:09,422 INFO L471 AbstractCegarLoop]: Abstraction has 227 states and 272 transitions. [2025-02-06 05:15:09,422 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, (26), 2 states have call predecessors, (26), 3 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) [2025-02-06 05:15:09,423 INFO L276 IsEmpty]: Start isEmpty. Operand 227 states and 272 transitions. [2025-02-06 05:15:09,425 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2025-02-06 05:15:09,427 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 05:15:09,427 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 05:15:09,445 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 05:15:09,627 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 05:15:09,627 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-06 05:15:09,628 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 05:15:09,628 INFO L85 PathProgramCache]: Analyzing trace with hash 769737404, now seen corresponding path program 1 times [2025-02-06 05:15:09,628 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 05:15:09,628 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1000420433] [2025-02-06 05:15:09,628 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 05:15:09,628 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 05:15:13,667 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 166 statements into 1 equivalence classes. [2025-02-06 05:15:13,737 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 166 of 166 statements. [2025-02-06 05:15:13,737 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 05:15:13,737 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 05:15:15,977 INFO L134 CoverageAnalysis]: Checked inductivity of 222 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 212 trivial. 0 not checked. [2025-02-06 05:15:15,978 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 05:15:15,978 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1000420433] [2025-02-06 05:15:15,978 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1000420433] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 05:15:15,978 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [851540547] [2025-02-06 05:15:15,978 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 05:15:15,978 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 05:15:15,978 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 05:15:15,981 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 05:15:15,982 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 [2025-02-06 05:15:20,955 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 166 statements into 1 equivalence classes. [2025-02-06 05:15:21,420 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 166 of 166 statements. [2025-02-06 05:15:21,420 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 05:15:21,421 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 05:15:21,439 INFO L256 TraceCheckSpWp]: Trace formula consists of 4469 conjuncts, 8 conjuncts are in the unsatisfiable core [2025-02-06 05:15:21,445 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 05:15:23,057 INFO L134 CoverageAnalysis]: Checked inductivity of 222 backedges. 56 proven. 0 refuted. 0 times theorem prover too weak. 166 trivial. 0 not checked. [2025-02-06 05:15:23,057 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 05:15:23,057 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [851540547] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 05:15:23,057 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-06 05:15:23,057 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [7] total 12 [2025-02-06 05:15:23,057 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1130653510] [2025-02-06 05:15:23,057 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 05:15:23,058 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-02-06 05:15:23,058 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 05:15:23,058 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-02-06 05:15:23,058 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=110, Unknown=0, NotChecked=0, Total=132 [2025-02-06 05:15:23,059 INFO L87 Difference]: Start difference. First operand 227 states and 272 transitions. Second operand has 7 states, 6 states have (on average 12.5) internal successors, (75), 7 states have internal predecessors, (75), 4 states have call successors, (24), 2 states have call predecessors, (24), 3 states have return successors, (23), 4 states have call predecessors, (23), 4 states have call successors, (23) [2025-02-06 05:15:25,014 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 05:15:25,014 INFO L93 Difference]: Finished difference Result 337 states and 406 transitions. [2025-02-06 05:15:25,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-02-06 05:15:25,015 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 12.5) internal successors, (75), 7 states have internal predecessors, (75), 4 states have call successors, (24), 2 states have call predecessors, (24), 3 states have return successors, (23), 4 states have call predecessors, (23), 4 states have call successors, (23) Word has length 166 [2025-02-06 05:15:25,016 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 05:15:25,018 INFO L225 Difference]: With dead ends: 337 [2025-02-06 05:15:25,018 INFO L226 Difference]: Without dead ends: 234 [2025-02-06 05:15:25,018 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 177 GetRequests, 163 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=42, Invalid=198, Unknown=0, NotChecked=0, Total=240 [2025-02-06 05:15:25,019 INFO L435 NwaCegarLoop]: 130 mSDtfsCounter, 149 mSDsluCounter, 473 mSDsCounter, 0 mSdLazyCounter, 143 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 149 SdHoareTripleChecker+Valid, 603 SdHoareTripleChecker+Invalid, 183 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 143 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2025-02-06 05:15:25,019 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [149 Valid, 603 Invalid, 183 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 143 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2025-02-06 05:15:25,020 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 234 states. [2025-02-06 05:15:25,042 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 234 to 224. [2025-02-06 05:15:25,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 224 states, 148 states have (on average 1.162162162162162) internal successors, (172), 151 states have internal predecessors, (172), 46 states have call successors, (46), 25 states have call predecessors, (46), 29 states have return successors, (49), 47 states have call predecessors, (49), 44 states have call successors, (49) [2025-02-06 05:15:25,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 224 states to 224 states and 267 transitions. [2025-02-06 05:15:25,044 INFO L78 Accepts]: Start accepts. Automaton has 224 states and 267 transitions. Word has length 166 [2025-02-06 05:15:25,044 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 05:15:25,044 INFO L471 AbstractCegarLoop]: Abstraction has 224 states and 267 transitions. [2025-02-06 05:15:25,045 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 12.5) internal successors, (75), 7 states have internal predecessors, (75), 4 states have call successors, (24), 2 states have call predecessors, (24), 3 states have return successors, (23), 4 states have call predecessors, (23), 4 states have call successors, (23) [2025-02-06 05:15:25,045 INFO L276 IsEmpty]: Start isEmpty. Operand 224 states and 267 transitions. [2025-02-06 05:15:25,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2025-02-06 05:15:25,047 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 05:15:25,047 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 05:15:25,070 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2025-02-06 05:15:25,247 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 05:15:25,248 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-06 05:15:25,248 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 05:15:25,248 INFO L85 PathProgramCache]: Analyzing trace with hash -1349688792, now seen corresponding path program 1 times [2025-02-06 05:15:25,249 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 05:15:25,249 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1557027120] [2025-02-06 05:15:25,249 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 05:15:25,249 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms