./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/aws-c-common/aws_hash_iter_next_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 551b0097 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/aws-c-common/aws_hash_iter_next_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 839f41a2c3e360479cb51d794d3ab0f4c035e5d91806fe8b36886ee505a3f070 --- Real Ultimate output --- This is Ultimate 0.3.0-?-551b009-m [2025-01-09 17:15:51,804 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-01-09 17:15:51,861 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2025-01-09 17:15:51,867 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-01-09 17:15:51,871 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-01-09 17:15:51,885 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-01-09 17:15:51,886 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-01-09 17:15:51,886 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-01-09 17:15:51,886 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-01-09 17:15:51,886 INFO L153 SettingsManager]: * Use memory slicer=true [2025-01-09 17:15:51,886 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-01-09 17:15:51,886 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-01-09 17:15:51,886 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-01-09 17:15:51,886 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-01-09 17:15:51,886 INFO L153 SettingsManager]: * Use SBE=true [2025-01-09 17:15:51,886 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-01-09 17:15:51,887 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-01-09 17:15:51,887 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-01-09 17:15:51,887 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-01-09 17:15:51,887 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-01-09 17:15:51,887 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-01-09 17:15:51,887 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-01-09 17:15:51,887 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-01-09 17:15:51,887 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-01-09 17:15:51,887 INFO L153 SettingsManager]: * Use constant arrays=true [2025-01-09 17:15:51,887 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-01-09 17:15:51,887 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 17:15:51,887 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-09 17:15:51,887 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 17:15:51,887 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 17:15:51,887 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-01-09 17:15:51,887 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 17:15:51,887 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-09 17:15:51,887 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 17:15:51,887 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 17:15:51,888 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-01-09 17:15:51,888 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-01-09 17:15:51,888 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-01-09 17:15:51,888 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-01-09 17:15:51,888 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-01-09 17:15:51,888 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-01-09 17:15:51,888 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-01-09 17:15:51,888 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-01-09 17:15:51,888 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-01-09 17:15:51,888 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-01-09 17:15:51,888 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 -> 839f41a2c3e360479cb51d794d3ab0f4c035e5d91806fe8b36886ee505a3f070 [2025-01-09 17:15:52,120 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-01-09 17:15:52,127 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-01-09 17:15:52,129 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-01-09 17:15:52,130 INFO L270 PluginConnector]: Initializing CDTParser... [2025-01-09 17:15:52,130 INFO L274 PluginConnector]: CDTParser initialized [2025-01-09 17:15:52,131 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_hash_iter_next_harness.i [2025-01-09 17:15:53,261 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/77dcef7e5/316fdb7b52f04a709772a6d0c60efefb/FLAG68833a650 [2025-01-09 17:15:53,757 INFO L384 CDTParser]: Found 1 translation units. [2025-01-09 17:15:53,759 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_hash_iter_next_harness.i [2025-01-09 17:15:53,793 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/77dcef7e5/316fdb7b52f04a709772a6d0c60efefb/FLAG68833a650 [2025-01-09 17:15:53,806 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/77dcef7e5/316fdb7b52f04a709772a6d0c60efefb [2025-01-09 17:15:53,808 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-01-09 17:15:53,809 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-01-09 17:15:53,811 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-01-09 17:15:53,811 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-01-09 17:15:53,814 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-01-09 17:15:53,815 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 05:15:53" (1/1) ... [2025-01-09 17:15:53,815 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@617a996c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:15:53, skipping insertion in model container [2025-01-09 17:15:53,816 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 05:15:53" (1/1) ... [2025-01-09 17:15:53,880 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-01-09 17:15:54,075 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_iter_next_harness.i[4492,4505] [2025-01-09 17:15:54,080 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_iter_next_harness.i[4552,4565] [2025-01-09 17:15:54,570 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:15:54,570 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:15:54,570 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:15:54,571 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:15:54,571 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:15:54,579 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:15:54,579 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:15:54,580 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:15:54,580 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:15:54,581 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:15:54,582 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:15:54,582 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:15:54,583 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:15:55,304 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:15:55,306 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:15:55,336 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:15:55,337 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:15:55,340 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:15:55,343 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:15:55,355 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:15:55,356 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:15:55,356 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:15:55,357 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:15:55,357 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:15:55,357 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:15:55,358 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:15:55,426 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_iter_next_harness.i[227890,227903] [2025-01-09 17:15:55,427 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 17:15:55,453 INFO L200 MainTranslator]: Completed pre-run [2025-01-09 17:15:55,463 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_iter_next_harness.i[4492,4505] [2025-01-09 17:15:55,463 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_iter_next_harness.i[4552,4565] [2025-01-09 17:15:55,496 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:15:55,497 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:15:55,497 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:15:55,497 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:15:55,498 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:15:55,501 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:15:55,504 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:15:55,505 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:15:55,505 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:15:55,507 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:15:55,507 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:15:55,507 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:15:55,507 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:15:55,561 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [7558-7569] [2025-01-09 17:15:55,616 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:15:55,616 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:15:55,621 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:15:55,621 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:15:55,622 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:15:55,622 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:15:55,629 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:15:55,630 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:15:55,630 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:15:55,630 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:15:55,630 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:15:55,630 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:15:55,631 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:15:55,645 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_iter_next_harness.i[227890,227903] [2025-01-09 17:15:55,646 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 17:15:55,795 INFO L204 MainTranslator]: Completed translation [2025-01-09 17:15:55,796 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:15:55 WrapperNode [2025-01-09 17:15:55,796 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-01-09 17:15:55,797 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-01-09 17:15:55,797 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-01-09 17:15:55,797 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-01-09 17:15:55,801 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:15:55" (1/1) ... [2025-01-09 17:15:55,888 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:15:55" (1/1) ... [2025-01-09 17:15:55,941 INFO L138 Inliner]: procedures = 763, calls = 2447, calls flagged for inlining = 68, calls inlined = 11, statements flattened = 643 [2025-01-09 17:15:55,942 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-01-09 17:15:55,942 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-01-09 17:15:55,942 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-01-09 17:15:55,943 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-01-09 17:15:55,950 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:15:55" (1/1) ... [2025-01-09 17:15:55,950 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:15:55" (1/1) ... [2025-01-09 17:15:55,962 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:15:55" (1/1) ... [2025-01-09 17:15:56,019 INFO L175 MemorySlicer]: Split 329 memory accesses to 9 slices as follows [238, 2, 22, 8, 2, 3, 6, 43, 5]. 72 percent of accesses are in the largest equivalence class. The 22 initializations are split as follows [6, 2, 0, 0, 0, 0, 0, 9, 5]. The 247 writes are split as follows [232, 0, 1, 1, 1, 1, 2, 9, 0]. [2025-01-09 17:15:56,019 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:15:55" (1/1) ... [2025-01-09 17:15:56,019 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:15:55" (1/1) ... [2025-01-09 17:15:56,050 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:15:55" (1/1) ... [2025-01-09 17:15:56,059 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:15:55" (1/1) ... [2025-01-09 17:15:56,061 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:15:55" (1/1) ... [2025-01-09 17:15:56,074 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:15:55" (1/1) ... [2025-01-09 17:15:56,076 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:15:55" (1/1) ... [2025-01-09 17:15:56,090 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-01-09 17:15:56,094 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-01-09 17:15:56,094 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-01-09 17:15:56,094 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-01-09 17:15:56,095 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:15:55" (1/1) ... [2025-01-09 17:15:56,099 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 17:15:56,108 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 17:15:56,119 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-01-09 17:15:56,122 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-01-09 17:15:56,141 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#0 [2025-01-09 17:15:56,141 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#1 [2025-01-09 17:15:56,141 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#2 [2025-01-09 17:15:56,141 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#3 [2025-01-09 17:15:56,141 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#4 [2025-01-09 17:15:56,141 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#5 [2025-01-09 17:15:56,142 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#6 [2025-01-09 17:15:56,142 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#7 [2025-01-09 17:15:56,142 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#8 [2025-01-09 17:15:56,142 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-01-09 17:15:56,142 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2025-01-09 17:15:56,142 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2025-01-09 17:15:56,142 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2025-01-09 17:15:56,142 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2025-01-09 17:15:56,142 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2025-01-09 17:15:56,142 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2025-01-09 17:15:56,143 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#6 [2025-01-09 17:15:56,143 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#7 [2025-01-09 17:15:56,143 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#8 [2025-01-09 17:15:56,143 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-01-09 17:15:56,143 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-01-09 17:15:56,143 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2025-01-09 17:15:56,143 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2025-01-09 17:15:56,143 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2025-01-09 17:15:56,143 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2025-01-09 17:15:56,143 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2025-01-09 17:15:56,143 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2025-01-09 17:15:56,144 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#8 [2025-01-09 17:15:56,144 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2025-01-09 17:15:56,144 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2025-01-09 17:15:56,144 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2025-01-09 17:15:56,144 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2025-01-09 17:15:56,144 INFO L130 BoogieDeclarations]: Found specification of procedure hash_table_state_is_valid [2025-01-09 17:15:56,145 INFO L138 BoogieDeclarations]: Found implementation of procedure hash_table_state_is_valid [2025-01-09 17:15:56,145 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-01-09 17:15:56,145 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-01-09 17:15:56,145 INFO L130 BoogieDeclarations]: Found specification of procedure aws_hash_iter_next [2025-01-09 17:15:56,145 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_hash_iter_next [2025-01-09 17:15:56,145 INFO L130 BoogieDeclarations]: Found specification of procedure hash_table_state_required_bytes [2025-01-09 17:15:56,145 INFO L138 BoogieDeclarations]: Found implementation of procedure hash_table_state_required_bytes [2025-01-09 17:15:56,145 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2025-01-09 17:15:56,146 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2025-01-09 17:15:56,146 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2025-01-09 17:15:56,146 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2025-01-09 17:15:56,146 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2025-01-09 17:15:56,146 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2025-01-09 17:15:56,146 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2025-01-09 17:15:56,147 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#7 [2025-01-09 17:15:56,147 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#8 [2025-01-09 17:15:56,147 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-01-09 17:15:56,147 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-01-09 17:15:56,147 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2025-01-09 17:15:56,147 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2025-01-09 17:15:56,147 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2025-01-09 17:15:56,147 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2025-01-09 17:15:56,147 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2025-01-09 17:15:56,147 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2025-01-09 17:15:56,147 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2025-01-09 17:15:56,147 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2025-01-09 17:15:56,147 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2025-01-09 17:15:56,147 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2025-01-09 17:15:56,147 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#6 [2025-01-09 17:15:56,147 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#7 [2025-01-09 17:15:56,147 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#8 [2025-01-09 17:15:56,147 INFO L130 BoogieDeclarations]: Found specification of procedure s_get_next_element [2025-01-09 17:15:56,148 INFO L138 BoogieDeclarations]: Found implementation of procedure s_get_next_element [2025-01-09 17:15:56,148 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2025-01-09 17:15:56,148 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2025-01-09 17:15:56,148 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-01-09 17:15:56,148 INFO L130 BoogieDeclarations]: Found specification of procedure aws_hash_iter_is_valid [2025-01-09 17:15:56,148 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_hash_iter_is_valid [2025-01-09 17:15:56,148 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_plus [2025-01-09 17:15:56,148 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_plus [2025-01-09 17:15:56,148 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2025-01-09 17:15:56,149 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2025-01-09 17:15:56,149 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2025-01-09 17:15:56,149 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2025-01-09 17:15:56,149 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2025-01-09 17:15:56,149 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2025-01-09 17:15:56,149 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2025-01-09 17:15:56,149 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#7 [2025-01-09 17:15:56,149 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#8 [2025-01-09 17:15:56,150 INFO L130 BoogieDeclarations]: Found specification of procedure aws_hash_table_is_valid [2025-01-09 17:15:56,150 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_hash_table_is_valid [2025-01-09 17:15:56,150 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2025-01-09 17:15:56,150 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2025-01-09 17:15:56,150 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2025-01-09 17:15:56,150 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2025-01-09 17:15:56,150 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2025-01-09 17:15:56,150 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2025-01-09 17:15:56,150 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#6 [2025-01-09 17:15:56,150 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#7 [2025-01-09 17:15:56,151 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#8 [2025-01-09 17:15:56,151 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2025-01-09 17:15:56,151 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2025-01-09 17:15:56,151 INFO L130 BoogieDeclarations]: Found specification of procedure aws_add_size_checked [2025-01-09 17:15:56,151 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_add_size_checked [2025-01-09 17:15:56,151 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2025-01-09 17:15:56,151 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2025-01-09 17:15:56,151 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-01-09 17:15:56,151 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-01-09 17:15:56,151 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2025-01-09 17:15:56,151 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2025-01-09 17:15:56,151 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2025-01-09 17:15:56,151 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2025-01-09 17:15:56,151 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2025-01-09 17:15:56,151 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2025-01-09 17:15:56,151 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#8 [2025-01-09 17:15:56,151 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-01-09 17:15:56,151 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-01-09 17:15:56,151 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-01-09 17:15:56,151 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2025-01-09 17:15:56,151 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2025-01-09 17:15:56,151 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2025-01-09 17:15:56,151 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2025-01-09 17:15:56,152 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2025-01-09 17:15:56,152 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2025-01-09 17:15:56,152 INFO L130 BoogieDeclarations]: Found specification of procedure aws_is_power_of_two [2025-01-09 17:15:56,152 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_is_power_of_two [2025-01-09 17:15:56,384 INFO L234 CfgBuilder]: Building ICFG [2025-01-09 17:15:56,385 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-01-09 17:16:02,129 INFO L? ?]: Removed 160 outVars from TransFormulas that were not future-live. [2025-01-09 17:16:02,130 INFO L283 CfgBuilder]: Performing block encoding [2025-01-09 17:16:02,139 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-01-09 17:16:02,139 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2025-01-09 17:16:02,140 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 05:16:02 BoogieIcfgContainer [2025-01-09 17:16:02,140 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-01-09 17:16:02,141 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-01-09 17:16:02,141 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-01-09 17:16:02,145 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-01-09 17:16:02,145 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.01 05:15:53" (1/3) ... [2025-01-09 17:16:02,145 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d2224a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 05:16:02, skipping insertion in model container [2025-01-09 17:16:02,145 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:15:55" (2/3) ... [2025-01-09 17:16:02,145 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d2224a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 05:16:02, skipping insertion in model container [2025-01-09 17:16:02,145 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 05:16:02" (3/3) ... [2025-01-09 17:16:02,146 INFO L128 eAbstractionObserver]: Analyzing ICFG aws_hash_iter_next_harness.i [2025-01-09 17:16:02,162 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-01-09 17:16:02,164 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG aws_hash_iter_next_harness.i that has 17 procedures, 171 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2025-01-09 17:16:02,209 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-01-09 17:16:02,217 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;@42abc586, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-01-09 17:16:02,219 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-01-09 17:16:02,222 INFO L276 IsEmpty]: Start isEmpty. Operand has 171 states, 110 states have (on average 1.2545454545454546) internal successors, (138), 111 states have internal predecessors, (138), 43 states have call successors, (43), 16 states have call predecessors, (43), 16 states have return successors, (43), 43 states have call predecessors, (43), 43 states have call successors, (43) [2025-01-09 17:16:02,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2025-01-09 17:16:02,233 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 17:16:02,234 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 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, 1, 1, 1, 1] [2025-01-09 17:16:02,234 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 17:16:02,238 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 17:16:02,239 INFO L85 PathProgramCache]: Analyzing trace with hash 931025047, now seen corresponding path program 1 times [2025-01-09 17:16:02,244 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 17:16:02,245 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1317961487] [2025-01-09 17:16:02,246 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 17:16:02,246 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 17:16:06,397 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 155 statements into 1 equivalence classes. [2025-01-09 17:16:06,683 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 155 of 155 statements. [2025-01-09 17:16:06,683 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 17:16:06,683 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 17:16:07,964 INFO L134 CoverageAnalysis]: Checked inductivity of 214 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 207 trivial. 0 not checked. [2025-01-09 17:16:07,966 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 17:16:07,966 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1317961487] [2025-01-09 17:16:07,967 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1317961487] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 17:16:07,967 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1243865251] [2025-01-09 17:16:07,967 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 17:16:07,967 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 17:16:07,968 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 17:16:07,973 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-09 17:16:07,974 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-01-09 17:16:12,147 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 155 statements into 1 equivalence classes. [2025-01-09 17:16:12,630 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 155 of 155 statements. [2025-01-09 17:16:12,631 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 17:16:12,631 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 17:16:12,654 INFO L256 TraceCheckSpWp]: Trace formula consists of 4566 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-01-09 17:16:12,663 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 17:16:14,769 INFO L134 CoverageAnalysis]: Checked inductivity of 214 backedges. 130 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2025-01-09 17:16:14,771 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 17:16:14,771 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1243865251] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 17:16:14,771 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-09 17:16:14,771 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [5] total 9 [2025-01-09 17:16:14,773 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [565253560] [2025-01-09 17:16:14,773 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 17:16:14,776 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-01-09 17:16:14,776 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 17:16:14,787 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-01-09 17:16:14,788 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2025-01-09 17:16:14,790 INFO L87 Difference]: Start difference. First operand has 171 states, 110 states have (on average 1.2545454545454546) internal successors, (138), 111 states have internal predecessors, (138), 43 states have call successors, (43), 16 states have call predecessors, (43), 16 states have return successors, (43), 43 states have call predecessors, (43), 43 states have call successors, (43) Second operand has 6 states, 5 states have (on average 15.4) internal successors, (77), 5 states have internal predecessors, (77), 3 states have call successors, (27), 3 states have call predecessors, (27), 3 states have return successors, (24), 2 states have call predecessors, (24), 3 states have call successors, (24) [2025-01-09 17:16:16,804 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 17:16:16,805 INFO L93 Difference]: Finished difference Result 340 states and 487 transitions. [2025-01-09 17:16:16,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-01-09 17:16:16,807 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 15.4) internal successors, (77), 5 states have internal predecessors, (77), 3 states have call successors, (27), 3 states have call predecessors, (27), 3 states have return successors, (24), 2 states have call predecessors, (24), 3 states have call successors, (24) Word has length 155 [2025-01-09 17:16:16,807 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 17:16:16,814 INFO L225 Difference]: With dead ends: 340 [2025-01-09 17:16:16,814 INFO L226 Difference]: Without dead ends: 171 [2025-01-09 17:16:16,817 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 162 GetRequests, 152 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2025-01-09 17:16:16,819 INFO L435 NwaCegarLoop]: 187 mSDtfsCounter, 185 mSDsluCounter, 521 mSDsCounter, 0 mSdLazyCounter, 146 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 191 SdHoareTripleChecker+Valid, 708 SdHoareTripleChecker+Invalid, 179 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 146 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2025-01-09 17:16:16,820 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [191 Valid, 708 Invalid, 179 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 146 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2025-01-09 17:16:16,832 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 171 states. [2025-01-09 17:16:16,856 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 171 to 167. [2025-01-09 17:16:16,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 167 states, 106 states have (on average 1.2358490566037736) internal successors, (131), 108 states have internal predecessors, (131), 43 states have call successors, (43), 16 states have call predecessors, (43), 17 states have return successors, (45), 42 states have call predecessors, (45), 42 states have call successors, (45) [2025-01-09 17:16:16,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 167 states and 219 transitions. [2025-01-09 17:16:16,871 INFO L78 Accepts]: Start accepts. Automaton has 167 states and 219 transitions. Word has length 155 [2025-01-09 17:16:16,871 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 17:16:16,871 INFO L471 AbstractCegarLoop]: Abstraction has 167 states and 219 transitions. [2025-01-09 17:16:16,872 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 15.4) internal successors, (77), 5 states have internal predecessors, (77), 3 states have call successors, (27), 3 states have call predecessors, (27), 3 states have return successors, (24), 2 states have call predecessors, (24), 3 states have call successors, (24) [2025-01-09 17:16:16,872 INFO L276 IsEmpty]: Start isEmpty. Operand 167 states and 219 transitions. [2025-01-09 17:16:16,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2025-01-09 17:16:16,879 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 17:16:16,880 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 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, 1, 1, 1, 1, 1] [2025-01-09 17:16:16,895 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2025-01-09 17:16:17,081 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2025-01-09 17:16:17,081 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 17:16:17,082 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 17:16:17,082 INFO L85 PathProgramCache]: Analyzing trace with hash -971379661, now seen corresponding path program 1 times [2025-01-09 17:16:17,082 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 17:16:17,083 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [411743776] [2025-01-09 17:16:17,083 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 17:16:17,083 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 17:16:20,817 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 156 statements into 1 equivalence classes. [2025-01-09 17:16:20,901 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 156 of 156 statements. [2025-01-09 17:16:20,901 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 17:16:20,901 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 17:16:21,739 INFO L134 CoverageAnalysis]: Checked inductivity of 214 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 207 trivial. 0 not checked. [2025-01-09 17:16:21,740 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 17:16:21,740 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [411743776] [2025-01-09 17:16:21,740 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [411743776] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 17:16:21,740 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1802510195] [2025-01-09 17:16:21,740 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 17:16:21,740 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 17:16:21,740 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 17:16:21,744 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-09 17:16:21,745 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-01-09 17:16:25,957 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 156 statements into 1 equivalence classes. [2025-01-09 17:16:26,354 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 156 of 156 statements. [2025-01-09 17:16:26,355 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 17:16:26,355 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 17:16:26,370 INFO L256 TraceCheckSpWp]: Trace formula consists of 4571 conjuncts, 7 conjuncts are in the unsatisfiable core [2025-01-09 17:16:26,376 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 17:16:28,939 INFO L134 CoverageAnalysis]: Checked inductivity of 214 backedges. 102 proven. 55 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2025-01-09 17:16:28,940 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-09 17:16:32,249 INFO L134 CoverageAnalysis]: Checked inductivity of 214 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 208 trivial. 0 not checked. [2025-01-09 17:16:32,250 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1802510195] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-09 17:16:32,253 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-09 17:16:32,253 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 8, 8] total 16 [2025-01-09 17:16:32,254 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [326923336] [2025-01-09 17:16:32,254 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-09 17:16:32,255 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2025-01-09 17:16:32,255 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 17:16:32,256 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2025-01-09 17:16:32,256 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=205, Unknown=0, NotChecked=0, Total=240 [2025-01-09 17:16:32,257 INFO L87 Difference]: Start difference. First operand 167 states and 219 transitions. Second operand has 16 states, 14 states have (on average 10.0) internal successors, (140), 14 states have internal predecessors, (140), 8 states have call successors, (63), 5 states have call predecessors, (63), 5 states have return successors, (59), 7 states have call predecessors, (59), 8 states have call successors, (59) [2025-01-09 17:16:37,675 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 17:16:37,676 INFO L93 Difference]: Finished difference Result 331 states and 439 transitions. [2025-01-09 17:16:37,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2025-01-09 17:16:37,676 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 14 states have (on average 10.0) internal successors, (140), 14 states have internal predecessors, (140), 8 states have call successors, (63), 5 states have call predecessors, (63), 5 states have return successors, (59), 7 states have call predecessors, (59), 8 states have call successors, (59) Word has length 156 [2025-01-09 17:16:37,677 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 17:16:37,679 INFO L225 Difference]: With dead ends: 331 [2025-01-09 17:16:37,679 INFO L226 Difference]: Without dead ends: 176 [2025-01-09 17:16:37,680 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 324 GetRequests, 301 SyntacticMatches, 1 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=83, Invalid=469, Unknown=0, NotChecked=0, Total=552 [2025-01-09 17:16:37,681 INFO L435 NwaCegarLoop]: 172 mSDtfsCounter, 206 mSDsluCounter, 1499 mSDsCounter, 0 mSdLazyCounter, 415 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 208 SdHoareTripleChecker+Valid, 1671 SdHoareTripleChecker+Invalid, 476 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 415 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2025-01-09 17:16:37,681 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [208 Valid, 1671 Invalid, 476 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 415 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2025-01-09 17:16:37,682 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 176 states. [2025-01-09 17:16:37,691 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 176 to 172. [2025-01-09 17:16:37,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 172 states, 110 states have (on average 1.2272727272727273) internal successors, (135), 112 states have internal predecessors, (135), 43 states have call successors, (43), 16 states have call predecessors, (43), 18 states have return successors, (44), 43 states have call predecessors, (44), 42 states have call successors, (44) [2025-01-09 17:16:37,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172 states to 172 states and 222 transitions. [2025-01-09 17:16:37,693 INFO L78 Accepts]: Start accepts. Automaton has 172 states and 222 transitions. Word has length 156 [2025-01-09 17:16:37,693 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 17:16:37,693 INFO L471 AbstractCegarLoop]: Abstraction has 172 states and 222 transitions. [2025-01-09 17:16:37,694 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 14 states have (on average 10.0) internal successors, (140), 14 states have internal predecessors, (140), 8 states have call successors, (63), 5 states have call predecessors, (63), 5 states have return successors, (59), 7 states have call predecessors, (59), 8 states have call successors, (59) [2025-01-09 17:16:37,694 INFO L276 IsEmpty]: Start isEmpty. Operand 172 states and 222 transitions. [2025-01-09 17:16:37,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2025-01-09 17:16:37,696 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 17:16:37,696 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 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, 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] [2025-01-09 17:16:37,712 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2025-01-09 17:16:37,900 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 17:16:37,900 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 17:16:37,901 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 17:16:37,901 INFO L85 PathProgramCache]: Analyzing trace with hash 1392093197, now seen corresponding path program 1 times [2025-01-09 17:16:37,901 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 17:16:37,901 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1176331086] [2025-01-09 17:16:37,901 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 17:16:37,901 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 17:16:41,322 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 169 statements into 1 equivalence classes. [2025-01-09 17:16:41,401 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 169 of 169 statements. [2025-01-09 17:16:41,401 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 17:16:41,401 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 17:16:44,571 INFO L134 CoverageAnalysis]: Checked inductivity of 221 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 215 trivial. 0 not checked. [2025-01-09 17:16:44,572 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 17:16:44,572 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1176331086] [2025-01-09 17:16:44,572 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1176331086] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 17:16:44,572 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [314688159] [2025-01-09 17:16:44,572 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 17:16:44,572 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 17:16:44,572 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 17:16:44,574 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-09 17:16:44,576 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2025-01-09 17:16:48,813 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 169 statements into 1 equivalence classes. [2025-01-09 17:16:49,247 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 169 of 169 statements. [2025-01-09 17:16:49,247 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 17:16:49,247 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 17:16:49,268 INFO L256 TraceCheckSpWp]: Trace formula consists of 4584 conjuncts, 9 conjuncts are in the unsatisfiable core [2025-01-09 17:16:49,274 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 17:16:53,093 INFO L134 CoverageAnalysis]: Checked inductivity of 221 backedges. 6 proven. 128 refuted. 0 times theorem prover too weak. 87 trivial. 0 not checked. [2025-01-09 17:16:53,094 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-09 17:16:57,873 INFO L134 CoverageAnalysis]: Checked inductivity of 221 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 215 trivial. 0 not checked. [2025-01-09 17:16:57,873 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [314688159] provided 1 perfect and 1 imperfect interpolant sequences [2025-01-09 17:16:57,873 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2025-01-09 17:16:57,873 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [10, 10] total 25 [2025-01-09 17:16:57,873 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [397608306] [2025-01-09 17:16:57,873 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 17:16:57,875 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-01-09 17:16:57,875 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 17:16:57,875 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-01-09 17:16:57,876 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=542, Unknown=0, NotChecked=0, Total=600 [2025-01-09 17:16:57,876 INFO L87 Difference]: Start difference. First operand 172 states and 222 transitions. Second operand has 10 states, 10 states have (on average 6.3) internal successors, (63), 8 states have internal predecessors, (63), 6 states have call successors, (26), 4 states have call predecessors, (26), 2 states have return successors, (23), 6 states have call predecessors, (23), 5 states have call successors, (23) [2025-01-09 17:17:02,879 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 17:17:02,879 INFO L93 Difference]: Finished difference Result 252 states and 330 transitions. [2025-01-09 17:17:02,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-01-09 17:17:02,880 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 6.3) internal successors, (63), 8 states have internal predecessors, (63), 6 states have call successors, (26), 4 states have call predecessors, (26), 2 states have return successors, (23), 6 states have call predecessors, (23), 5 states have call successors, (23) Word has length 169 [2025-01-09 17:17:02,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 17:17:02,881 INFO L225 Difference]: With dead ends: 252 [2025-01-09 17:17:02,882 INFO L226 Difference]: Without dead ends: 176 [2025-01-09 17:17:02,883 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 355 GetRequests, 324 SyntacticMatches, 1 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 91 ImplicationChecksByTransitivity, 6.8s TimeCoverageRelationStatistics Valid=92, Invalid=900, Unknown=0, NotChecked=0, Total=992 [2025-01-09 17:17:02,883 INFO L435 NwaCegarLoop]: 166 mSDtfsCounter, 229 mSDsluCounter, 959 mSDsCounter, 0 mSdLazyCounter, 318 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 229 SdHoareTripleChecker+Valid, 1125 SdHoareTripleChecker+Invalid, 382 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 318 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2025-01-09 17:17:02,883 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [229 Valid, 1125 Invalid, 382 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 318 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2025-01-09 17:17:02,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 176 states. [2025-01-09 17:17:02,900 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 176 to 170. [2025-01-09 17:17:02,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 170 states, 109 states have (on average 1.2201834862385321) internal successors, (133), 110 states have internal predecessors, (133), 43 states have call successors, (43), 16 states have call predecessors, (43), 17 states have return successors, (43), 43 states have call predecessors, (43), 42 states have call successors, (43) [2025-01-09 17:17:02,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 170 states to 170 states and 219 transitions. [2025-01-09 17:17:02,903 INFO L78 Accepts]: Start accepts. Automaton has 170 states and 219 transitions. Word has length 169 [2025-01-09 17:17:02,903 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 17:17:02,903 INFO L471 AbstractCegarLoop]: Abstraction has 170 states and 219 transitions. [2025-01-09 17:17:02,903 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 6.3) internal successors, (63), 8 states have internal predecessors, (63), 6 states have call successors, (26), 4 states have call predecessors, (26), 2 states have return successors, (23), 6 states have call predecessors, (23), 5 states have call successors, (23) [2025-01-09 17:17:02,904 INFO L276 IsEmpty]: Start isEmpty. Operand 170 states and 219 transitions. [2025-01-09 17:17:02,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2025-01-09 17:17:02,905 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 17:17:02,905 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, 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] [2025-01-09 17:17:02,921 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2025-01-09 17:17:03,109 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 17:17:03,109 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 17:17:03,110 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 17:17:03,110 INFO L85 PathProgramCache]: Analyzing trace with hash 1931181133, now seen corresponding path program 1 times [2025-01-09 17:17:03,110 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 17:17:03,110 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [93417953] [2025-01-09 17:17:03,110 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 17:17:03,110 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 17:17:06,649 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 170 statements into 1 equivalence classes. [2025-01-09 17:17:06,716 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 170 of 170 statements. [2025-01-09 17:17:06,717 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 17:17:06,717 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 17:17:09,560 INFO L134 CoverageAnalysis]: Checked inductivity of 223 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 217 trivial. 0 not checked. [2025-01-09 17:17:09,560 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 17:17:09,560 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [93417953] [2025-01-09 17:17:09,560 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [93417953] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 17:17:09,560 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [432347153] [2025-01-09 17:17:09,561 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 17:17:09,561 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 17:17:09,561 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 17:17:09,566 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-09 17:17:09,567 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2025-01-09 17:17:13,679 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 170 statements into 1 equivalence classes. [2025-01-09 17:17:14,093 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 170 of 170 statements. [2025-01-09 17:17:14,094 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 17:17:14,094 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 17:17:14,114 INFO L256 TraceCheckSpWp]: Trace formula consists of 4589 conjuncts, 15 conjuncts are in the unsatisfiable core [2025-01-09 17:17:14,119 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 17:17:14,858 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2025-01-09 17:17:16,407 INFO L134 CoverageAnalysis]: Checked inductivity of 223 backedges. 138 proven. 0 refuted. 0 times theorem prover too weak. 85 trivial. 0 not checked. [2025-01-09 17:17:16,408 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 17:17:16,408 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [432347153] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 17:17:16,408 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-09 17:17:16,408 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [10] total 17 [2025-01-09 17:17:16,408 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1745296534] [2025-01-09 17:17:16,408 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 17:17:16,409 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-01-09 17:17:16,409 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 17:17:16,409 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-01-09 17:17:16,410 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=234, Unknown=0, NotChecked=0, Total=272 [2025-01-09 17:17:16,410 INFO L87 Difference]: Start difference. First operand 170 states and 219 transitions. Second operand has 9 states, 8 states have (on average 10.875) internal successors, (87), 8 states have internal predecessors, (87), 4 states have call successors, (29), 3 states have call predecessors, (29), 3 states have return successors, (26), 3 states have call predecessors, (26), 4 states have call successors, (26) [2025-01-09 17:17:20,468 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2025-01-09 17:17:25,040 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2025-01-09 17:17:29,143 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0]