./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/aws-c-common/aws_priority_queue_s_sift_either_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_priority_queue_s_sift_either_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 3b33a1dc558667a4fcb18529533ebc713d63e8618dba1b7e6d3f152565826fd1 --- Real Ultimate output --- This is Ultimate 0.3.0-?-c00e63d-m [2025-02-06 05:22:18,277 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-06 05:22:18,361 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2025-02-06 05:22:18,366 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-06 05:22:18,367 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-06 05:22:18,399 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-06 05:22:18,400 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-06 05:22:18,400 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-06 05:22:18,402 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-06 05:22:18,402 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-06 05:22:18,403 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-06 05:22:18,403 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-06 05:22:18,404 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-06 05:22:18,404 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-06 05:22:18,404 INFO L153 SettingsManager]: * Use SBE=true [2025-02-06 05:22:18,405 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-06 05:22:18,405 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-06 05:22:18,405 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-06 05:22:18,405 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-06 05:22:18,405 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-06 05:22:18,405 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-06 05:22:18,405 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-06 05:22:18,405 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-06 05:22:18,406 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-06 05:22:18,406 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-06 05:22:18,406 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-06 05:22:18,406 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-06 05:22:18,406 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-06 05:22:18,406 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-06 05:22:18,406 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 05:22:18,406 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-06 05:22:18,406 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-06 05:22:18,406 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-02-06 05:22:18,406 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-02-06 05:22:18,406 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-06 05:22:18,406 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-06 05:22:18,406 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-06 05:22:18,406 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-06 05:22:18,406 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-06 05:22:18,407 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-06 05:22:18,407 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 -> 3b33a1dc558667a4fcb18529533ebc713d63e8618dba1b7e6d3f152565826fd1 [2025-02-06 05:22:18,723 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-06 05:22:18,736 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-06 05:22:18,738 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-06 05:22:18,740 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-06 05:22:18,741 INFO L274 PluginConnector]: CDTParser initialized [2025-02-06 05:22:18,742 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_priority_queue_s_sift_either_harness.i [2025-02-06 05:22:20,133 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/8b0e9fb59/54202401fcf24dbf857ad7cd6f3ce08c/FLAG6ff058512 [2025-02-06 05:22:20,723 INFO L384 CDTParser]: Found 1 translation units. [2025-02-06 05:22:20,723 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_priority_queue_s_sift_either_harness.i [2025-02-06 05:22:20,772 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/8b0e9fb59/54202401fcf24dbf857ad7cd6f3ce08c/FLAG6ff058512 [2025-02-06 05:22:20,788 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/8b0e9fb59/54202401fcf24dbf857ad7cd6f3ce08c [2025-02-06 05:22:20,790 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-06 05:22:20,791 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-06 05:22:20,793 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-06 05:22:20,793 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-06 05:22:20,797 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-06 05:22:20,797 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 05:22:20" (1/1) ... [2025-02-06 05:22:20,799 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@158ce8db and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 05:22:20, skipping insertion in model container [2025-02-06 05:22:20,799 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 05:22:20" (1/1) ... [2025-02-06 05:22:20,873 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-06 05:22:21,127 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_priority_queue_s_sift_either_harness.i[4506,4519] [2025-02-06 05:22:21,138 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_priority_queue_s_sift_either_harness.i[4566,4579] [2025-02-06 05:22:21,707 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:22:21,708 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:22:21,708 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:22:21,709 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:22:21,710 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:22:21,722 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:22:21,723 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:22:21,725 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:22:21,725 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:22:21,730 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:22:21,731 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:22:21,732 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:22:21,732 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:22:22,093 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:22:22,094 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:22:22,100 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:22:22,106 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:22:22,184 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:22:22,185 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:22:22,185 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:22:22,186 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:22:22,186 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:22:22,187 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:22:22,187 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:22:22,188 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:22:22,188 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:22:22,188 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:22:22,188 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:22:22,188 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:22:22,188 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:22:22,193 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:22:22,194 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:22:22,195 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:22:22,195 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:22:22,198 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:22:22,201 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:22:22,207 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:22:22,208 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:22:22,208 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:22:22,237 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 05:22:22,274 INFO L200 MainTranslator]: Completed pre-run [2025-02-06 05:22:22,292 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_priority_queue_s_sift_either_harness.i[4506,4519] [2025-02-06 05:22:22,293 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_priority_queue_s_sift_either_harness.i[4566,4579] [2025-02-06 05:22:22,354 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:22:22,354 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:22:22,355 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:22:22,356 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:22:22,357 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:22:22,402 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:22:22,408 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:22:22,410 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:22:22,410 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:22:22,411 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:22:22,411 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:22:22,412 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:22:22,412 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:22:22,491 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:22:22,491 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:22:22,492 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:22:22,499 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:22:22,505 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [7776-7787] [2025-02-06 05:22:22,533 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:22:22,534 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:22:22,534 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:22:22,535 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:22:22,535 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:22:22,536 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:22:22,537 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:22:22,537 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:22:22,537 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:22:22,537 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:22:22,538 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:22:22,538 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:22:22,538 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:22:22,538 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:22:22,539 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:22:22,540 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:22:22,540 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:22:22,541 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:22:22,542 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:22:22,548 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:22:22,548 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:22:22,548 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:22:22,556 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 05:22:22,785 INFO L204 MainTranslator]: Completed translation [2025-02-06 05:22:22,785 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 05:22:22 WrapperNode [2025-02-06 05:22:22,785 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-06 05:22:22,786 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-06 05:22:22,786 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-06 05:22:22,786 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-06 05:22:22,791 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 05:22:22" (1/1) ... [2025-02-06 05:22:22,859 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 05:22:22" (1/1) ... [2025-02-06 05:22:22,944 INFO L138 Inliner]: procedures = 686, calls = 1900, calls flagged for inlining = 59, calls inlined = 15, statements flattened = 947 [2025-02-06 05:22:22,944 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-06 05:22:22,945 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-06 05:22:22,945 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-06 05:22:22,945 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-06 05:22:22,953 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 05:22:22" (1/1) ... [2025-02-06 05:22:22,953 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 05:22:22" (1/1) ... [2025-02-06 05:22:22,961 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 05:22:22" (1/1) ... [2025-02-06 05:22:23,057 INFO L175 MemorySlicer]: Split 347 memory accesses to 6 slices as follows [69, 238, 2, 18, 3, 17]. 69 percent of accesses are in the largest equivalence class. The 18 initializations are split as follows [0, 6, 2, 5, 1, 4]. The 259 writes are split as follows [17, 232, 0, 6, 1, 3]. [2025-02-06 05:22:23,058 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 05:22:22" (1/1) ... [2025-02-06 05:22:23,058 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 05:22:22" (1/1) ... [2025-02-06 05:22:23,095 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 05:22:22" (1/1) ... [2025-02-06 05:22:23,098 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 05:22:22" (1/1) ... [2025-02-06 05:22:23,115 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 05:22:22" (1/1) ... [2025-02-06 05:22:23,122 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 05:22:22" (1/1) ... [2025-02-06 05:22:23,140 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-06 05:22:23,144 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-06 05:22:23,145 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-06 05:22:23,145 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-06 05:22:23,145 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 05:22:22" (1/1) ... [2025-02-06 05:22:23,151 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 05:22:23,164 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 05:22:23,179 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 05:22:23,184 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 05:22:23,204 INFO L130 BoogieDeclarations]: Found specification of procedure s_sift_either [2025-02-06 05:22:23,205 INFO L138 BoogieDeclarations]: Found implementation of procedure s_sift_either [2025-02-06 05:22:23,205 INFO L130 BoogieDeclarations]: Found specification of procedure s_swap [2025-02-06 05:22:23,205 INFO L138 BoogieDeclarations]: Found implementation of procedure s_swap [2025-02-06 05:22:23,205 INFO L130 BoogieDeclarations]: Found specification of procedure aws_is_mem_zeroed [2025-02-06 05:22:23,206 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_is_mem_zeroed [2025-02-06 05:22:23,206 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-02-06 05:22:23,206 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_bounded [2025-02-06 05:22:23,206 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_bounded [2025-02-06 05:22:23,206 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_valid [2025-02-06 05:22:23,206 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_valid [2025-02-06 05:22:23,206 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2025-02-06 05:22:23,207 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2025-02-06 05:22:23,207 INFO L130 BoogieDeclarations]: Found specification of procedure s_sift_up [2025-02-06 05:22:23,207 INFO L138 BoogieDeclarations]: Found implementation of procedure s_sift_up [2025-02-06 05:22:23,207 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2025-02-06 05:22:23,207 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2025-02-06 05:22:23,207 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2025-02-06 05:22:23,207 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2025-02-06 05:22:23,207 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2025-02-06 05:22:23,207 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2025-02-06 05:22:23,207 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-02-06 05:22:23,208 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-02-06 05:22:23,208 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2025-02-06 05:22:23,208 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2025-02-06 05:22:23,208 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2025-02-06 05:22:23,208 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2025-02-06 05:22:23,208 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2025-02-06 05:22:23,208 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2025-02-06 05:22:23,208 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2025-02-06 05:22:23,208 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2025-02-06 05:22:23,208 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-02-06 05:22:23,209 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-06 05:22:23,209 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2025-02-06 05:22:23,209 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2025-02-06 05:22:23,209 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2025-02-06 05:22:23,209 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2025-02-06 05:22:23,209 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2025-02-06 05:22:23,209 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2025-02-06 05:22:23,209 INFO L130 BoogieDeclarations]: Found specification of procedure my_abort [2025-02-06 05:22:23,210 INFO L138 BoogieDeclarations]: Found implementation of procedure my_abort [2025-02-06 05:22:23,210 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_impl [2025-02-06 05:22:23,210 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_impl [2025-02-06 05:22:23,210 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-06 05:22:23,210 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-06 05:22:23,210 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2025-02-06 05:22:23,210 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2025-02-06 05:22:23,210 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_size_t [2025-02-06 05:22:23,210 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_size_t [2025-02-06 05:22:23,210 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2025-02-06 05:22:23,210 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2025-02-06 05:22:23,211 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2025-02-06 05:22:23,211 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2025-02-06 05:22:23,211 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2025-02-06 05:22:23,211 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2025-02-06 05:22:23,211 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2025-02-06 05:22:23,211 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2025-02-06 05:22:23,211 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_malloc [2025-02-06 05:22:23,211 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_malloc [2025-02-06 05:22:23,211 INFO L130 BoogieDeclarations]: Found specification of procedure aws_priority_queue_is_valid [2025-02-06 05:22:23,212 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_priority_queue_is_valid [2025-02-06 05:22:23,212 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_length [2025-02-06 05:22:23,212 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_length [2025-02-06 05:22:23,212 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2025-02-06 05:22:23,212 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2025-02-06 05:22:23,212 INFO L130 BoogieDeclarations]: Found specification of procedure my_memcpy [2025-02-06 05:22:23,213 INFO L138 BoogieDeclarations]: Found implementation of procedure my_memcpy [2025-02-06 05:22:23,213 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-02-06 05:22:23,213 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2025-02-06 05:22:23,213 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2025-02-06 05:22:23,213 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2025-02-06 05:22:23,213 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2025-02-06 05:22:23,213 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2025-02-06 05:22:23,213 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2025-02-06 05:22:23,213 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2025-02-06 05:22:23,213 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2025-02-06 05:22:23,213 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2025-02-06 05:22:23,214 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2025-02-06 05:22:23,214 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2025-02-06 05:22:23,214 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2025-02-06 05:22:23,214 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_get_at_ptr [2025-02-06 05:22:23,214 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_get_at_ptr [2025-02-06 05:22:23,214 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2025-02-06 05:22:23,214 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2025-02-06 05:22:23,214 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2025-02-06 05:22:23,214 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2025-02-06 05:22:23,215 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-02-06 05:22:23,215 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-02-06 05:22:23,215 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2025-02-06 05:22:23,215 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2025-02-06 05:22:23,215 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2025-02-06 05:22:23,215 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2025-02-06 05:22:23,215 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_array_list_has_allocated_data_member [2025-02-06 05:22:23,215 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_array_list_has_allocated_data_member [2025-02-06 05:22:23,215 INFO L130 BoogieDeclarations]: Found specification of procedure aws_priority_queue_backpointer_index_valid [2025-02-06 05:22:23,215 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_priority_queue_backpointer_index_valid [2025-02-06 05:22:23,215 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2025-02-06 05:22:23,215 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2025-02-06 05:22:23,215 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-02-06 05:22:23,215 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-02-06 05:22:23,215 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-02-06 05:22:23,215 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2025-02-06 05:22:23,215 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2025-02-06 05:22:23,215 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2025-02-06 05:22:23,592 INFO L257 CfgBuilder]: Building ICFG [2025-02-06 05:22:23,594 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-06 05:22:23,628 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L6935: havoc #t~malloc583.base, #t~malloc583.offset; [2025-02-06 05:22:23,638 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L263: havoc #t~nondet6; [2025-02-06 05:22:23,674 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L2590: havoc #t~ret57#1; [2025-02-06 05:22:23,751 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L267: havoc nondet_uint8_t_#t~nondet10#1; [2025-02-06 05:22:23,763 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L6949: havoc #t~ret587;havoc #t~ite589.base, #t~ite589.offset;havoc #t~ret588.base, #t~ret588.offset; [2025-02-06 05:22:23,856 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L8277: havoc aws_priority_queue_backpointers_valid_#t~ret875#1;havoc aws_priority_queue_backpointers_valid_#t~short876#1; [2025-02-06 05:22:24,047 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L2944: call ULTIMATE.dealloc(~#required_size~0.base, ~#required_size~0.offset);havoc ~#required_size~0.base, ~#required_size~0.offset; [2025-02-06 05:22:24,051 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L261: havoc #t~nondet4; [2025-02-06 05:22:24,065 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L8191: havoc ~node~1.base, ~node~1.offset; [2025-02-06 05:22:24,094 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L262: havoc nondet_int_#t~nondet5#1; [2025-02-06 05:22:24,094 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L7268: havoc nondet_compare_#t~ret668#1; [2025-02-06 05:22:24,119 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L3203: havoc #t~ret243; [2025-02-06 05:22:24,127 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L7397: havoc #t~ret682.base, #t~ret682.offset; [2025-02-06 05:22:24,190 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L8087: call ULTIMATE.dealloc(~#parent_item~0.base, ~#parent_item~0.offset);havoc ~#parent_item~0.base, ~#parent_item~0.offset;call ULTIMATE.dealloc(~#child_item~0.base, ~#child_item~0.offset);havoc ~#child_item~0.base, ~#child_item~0.offset; [2025-02-06 05:22:29,946 INFO L? ?]: Removed 216 outVars from TransFormulas that were not future-live. [2025-02-06 05:22:29,946 INFO L308 CfgBuilder]: Performing block encoding [2025-02-06 05:22:29,966 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-06 05:22:29,966 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-06 05:22:29,967 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 05:22:29 BoogieIcfgContainer [2025-02-06 05:22:29,967 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-06 05:22:29,969 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-06 05:22:29,969 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-06 05:22:29,973 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-06 05:22:29,973 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.02 05:22:20" (1/3) ... [2025-02-06 05:22:29,974 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78bc761c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.02 05:22:29, skipping insertion in model container [2025-02-06 05:22:29,974 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 05:22:22" (2/3) ... [2025-02-06 05:22:29,975 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78bc761c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.02 05:22:29, skipping insertion in model container [2025-02-06 05:22:29,975 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 05:22:29" (3/3) ... [2025-02-06 05:22:29,976 INFO L128 eAbstractionObserver]: Analyzing ICFG aws_priority_queue_s_sift_either_harness.i [2025-02-06 05:22:29,988 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-06 05:22:29,990 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG aws_priority_queue_s_sift_either_harness.i that has 26 procedures, 363 locations, 1 initial locations, 6 loop locations, and 2 error locations. [2025-02-06 05:22:30,057 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-06 05:22:30,069 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;@3bf63c18, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-06 05:22:30,069 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2025-02-06 05:22:30,076 INFO L276 IsEmpty]: Start isEmpty. Operand has 363 states, 215 states have (on average 1.2325581395348837) internal successors, (265), 218 states have internal predecessors, (265), 120 states have call successors, (120), 25 states have call predecessors, (120), 25 states have return successors, (120), 120 states have call predecessors, (120), 120 states have call successors, (120) [2025-02-06 05:22:30,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2025-02-06 05:22:30,092 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 05:22:30,093 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 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] [2025-02-06 05:22:30,094 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-06 05:22:30,099 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 05:22:30,100 INFO L85 PathProgramCache]: Analyzing trace with hash -1699224695, now seen corresponding path program 1 times [2025-02-06 05:22:30,106 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 05:22:30,107 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [624307465] [2025-02-06 05:22:30,107 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 05:22:30,107 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 05:22:35,382 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 138 statements into 1 equivalence classes. [2025-02-06 05:22:35,948 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 138 of 138 statements. [2025-02-06 05:22:35,949 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 05:22:35,949 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 05:22:36,538 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 162 trivial. 0 not checked. [2025-02-06 05:22:36,540 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 05:22:36,541 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [624307465] [2025-02-06 05:22:36,541 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [624307465] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 05:22:36,542 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1826665279] [2025-02-06 05:22:36,542 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 05:22:36,543 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 05:22:36,543 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 05:22:36,547 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 05:22:36,548 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 05:22:41,174 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 138 statements into 1 equivalence classes. [2025-02-06 05:22:41,789 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 138 of 138 statements. [2025-02-06 05:22:41,789 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 05:22:41,789 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 05:22:41,808 INFO L256 TraceCheckSpWp]: Trace formula consists of 4408 conjuncts, 1 conjuncts are in the unsatisfiable core [2025-02-06 05:22:41,818 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 05:22:41,841 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2025-02-06 05:22:41,843 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 05:22:41,844 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1826665279] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 05:22:41,844 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-06 05:22:41,844 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2025-02-06 05:22:41,846 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1318872577] [2025-02-06 05:22:41,846 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 05:22:41,850 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-02-06 05:22:41,850 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 05:22:41,867 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-02-06 05:22:41,868 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-02-06 05:22:41,871 INFO L87 Difference]: Start difference. First operand has 363 states, 215 states have (on average 1.2325581395348837) internal successors, (265), 218 states have internal predecessors, (265), 120 states have call successors, (120), 25 states have call predecessors, (120), 25 states have return successors, (120), 120 states have call predecessors, (120), 120 states have call successors, (120) Second operand has 2 states, 2 states have (on average 24.0) internal successors, (48), 2 states have internal predecessors, (48), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2025-02-06 05:22:41,946 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 05:22:41,947 INFO L93 Difference]: Finished difference Result 701 states and 1052 transitions. [2025-02-06 05:22:41,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-02-06 05:22:41,950 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 24.0) internal successors, (48), 2 states have internal predecessors, (48), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 138 [2025-02-06 05:22:41,953 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 05:22:41,967 INFO L225 Difference]: With dead ends: 701 [2025-02-06 05:22:41,967 INFO L226 Difference]: Without dead ends: 356 [2025-02-06 05:22:41,973 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 139 GetRequests, 139 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 05:22:41,975 INFO L435 NwaCegarLoop]: 498 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 498 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-06 05:22:41,976 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 498 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-06 05:22:41,992 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 356 states. [2025-02-06 05:22:42,047 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 356 to 356. [2025-02-06 05:22:42,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 356 states, 210 states have (on average 1.2142857142857142) internal successors, (255), 212 states have internal predecessors, (255), 120 states have call successors, (120), 25 states have call predecessors, (120), 24 states have return successors, (118), 118 states have call predecessors, (118), 118 states have call successors, (118) [2025-02-06 05:22:42,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 356 states to 356 states and 493 transitions. [2025-02-06 05:22:42,065 INFO L78 Accepts]: Start accepts. Automaton has 356 states and 493 transitions. Word has length 138 [2025-02-06 05:22:42,067 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 05:22:42,067 INFO L471 AbstractCegarLoop]: Abstraction has 356 states and 493 transitions. [2025-02-06 05:22:42,067 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 24.0) internal successors, (48), 2 states have internal predecessors, (48), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2025-02-06 05:22:42,067 INFO L276 IsEmpty]: Start isEmpty. Operand 356 states and 493 transitions. [2025-02-06 05:22:42,073 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2025-02-06 05:22:42,073 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 05:22:42,074 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 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] [2025-02-06 05:22:42,088 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2025-02-06 05:22:42,274 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 05:22:42,275 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-06 05:22:42,276 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 05:22:42,276 INFO L85 PathProgramCache]: Analyzing trace with hash 416501516, now seen corresponding path program 1 times [2025-02-06 05:22:42,276 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 05:22:42,276 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1527133848] [2025-02-06 05:22:42,276 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 05:22:42,276 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 05:22:46,210 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 138 statements into 1 equivalence classes. [2025-02-06 05:22:46,423 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 138 of 138 statements. [2025-02-06 05:22:46,423 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 05:22:46,423 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 05:22:47,790 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 168 trivial. 0 not checked. [2025-02-06 05:22:47,790 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 05:22:47,791 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1527133848] [2025-02-06 05:22:47,792 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1527133848] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 05:22:47,792 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1120572771] [2025-02-06 05:22:47,792 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 05:22:47,792 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 05:22:47,793 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 05:22:47,795 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 05:22:47,797 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 05:22:52,090 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 138 statements into 1 equivalence classes. [2025-02-06 05:22:52,601 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 138 of 138 statements. [2025-02-06 05:22:52,601 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 05:22:52,601 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 05:22:52,622 INFO L256 TraceCheckSpWp]: Trace formula consists of 4408 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-02-06 05:22:52,631 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 05:22:52,758 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 166 trivial. 0 not checked. [2025-02-06 05:22:52,759 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 05:22:52,759 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1120572771] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 05:22:52,759 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-06 05:22:52,759 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2025-02-06 05:22:52,759 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1912575573] [2025-02-06 05:22:52,759 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 05:22:52,762 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-06 05:22:52,762 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 05:22:52,763 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-06 05:22:52,763 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-02-06 05:22:52,763 INFO L87 Difference]: Start difference. First operand 356 states and 493 transitions. Second operand has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2025-02-06 05:22:52,871 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 05:22:52,871 INFO L93 Difference]: Finished difference Result 440 states and 601 transitions. [2025-02-06 05:22:52,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-06 05:22:52,873 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 138 [2025-02-06 05:22:52,874 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 05:22:52,877 INFO L225 Difference]: With dead ends: 440 [2025-02-06 05:22:52,877 INFO L226 Difference]: Without dead ends: 357 [2025-02-06 05:22:52,878 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 138 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-02-06 05:22:52,879 INFO L435 NwaCegarLoop]: 492 mSDtfsCounter, 0 mSDsluCounter, 487 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 979 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-02-06 05:22:52,879 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 979 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-06 05:22:52,880 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 357 states. [2025-02-06 05:22:52,911 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 357 to 357. [2025-02-06 05:22:52,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 357 states, 211 states have (on average 1.2132701421800949) internal successors, (256), 213 states have internal predecessors, (256), 120 states have call successors, (120), 25 states have call predecessors, (120), 24 states have return successors, (118), 118 states have call predecessors, (118), 118 states have call successors, (118) [2025-02-06 05:22:52,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 357 states to 357 states and 494 transitions. [2025-02-06 05:22:52,918 INFO L78 Accepts]: Start accepts. Automaton has 357 states and 494 transitions. Word has length 138 [2025-02-06 05:22:52,919 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 05:22:52,919 INFO L471 AbstractCegarLoop]: Abstraction has 357 states and 494 transitions. [2025-02-06 05:22:52,919 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2025-02-06 05:22:52,919 INFO L276 IsEmpty]: Start isEmpty. Operand 357 states and 494 transitions. [2025-02-06 05:22:52,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2025-02-06 05:22:52,925 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 05:22:52,925 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 7, 7, 4, 4, 4, 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] [2025-02-06 05:22:52,942 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2025-02-06 05:22:53,126 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 05:22:53,127 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-06 05:22:53,127 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 05:22:53,127 INFO L85 PathProgramCache]: Analyzing trace with hash -1214115799, now seen corresponding path program 1 times [2025-02-06 05:22:53,127 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 05:22:53,127 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1023504430] [2025-02-06 05:22:53,128 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 05:22:53,128 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 05:22:57,135 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 157 statements into 1 equivalence classes. [2025-02-06 05:22:57,290 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 157 of 157 statements. [2025-02-06 05:22:57,290 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 05:22:57,290 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 05:22:58,556 INFO L134 CoverageAnalysis]: Checked inductivity of 246 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 237 trivial. 0 not checked. [2025-02-06 05:22:58,557 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 05:22:58,557 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1023504430] [2025-02-06 05:22:58,557 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1023504430] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 05:22:58,557 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [472486515] [2025-02-06 05:22:58,557 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 05:22:58,557 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 05:22:58,558 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 05:22:58,560 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 05:22:58,562 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 05:23:02,918 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 157 statements into 1 equivalence classes. [2025-02-06 05:23:03,407 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 157 of 157 statements. [2025-02-06 05:23:03,408 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 05:23:03,408 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 05:23:03,431 INFO L256 TraceCheckSpWp]: Trace formula consists of 4532 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-02-06 05:23:03,438 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 05:23:04,509 INFO L134 CoverageAnalysis]: Checked inductivity of 246 backedges. 102 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2025-02-06 05:23:04,509 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 05:23:04,509 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [472486515] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 05:23:04,509 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-06 05:23:04,509 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [5] total 9 [2025-02-06 05:23:04,510 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [252212383] [2025-02-06 05:23:04,510 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 05:23:04,510 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-06 05:23:04,510 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 05:23:04,511 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-06 05:23:04,511 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2025-02-06 05:23:04,511 INFO L87 Difference]: Start difference. First operand 357 states and 494 transitions. Second operand has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 6 states have internal predecessors, (55), 3 states have call successors, (27), 2 states have call predecessors, (27), 3 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) [2025-02-06 05:23:06,986 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 05:23:06,986 INFO L93 Difference]: Finished difference Result 668 states and 934 transitions. [2025-02-06 05:23:06,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-06 05:23:06,987 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 6 states have internal predecessors, (55), 3 states have call successors, (27), 2 states have call predecessors, (27), 3 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) Word has length 157 [2025-02-06 05:23:06,987 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 05:23:06,992 INFO L225 Difference]: With dead ends: 668 [2025-02-06 05:23:06,992 INFO L226 Difference]: Without dead ends: 359 [2025-02-06 05:23:06,994 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 164 GetRequests, 154 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2025-02-06 05:23:06,995 INFO L435 NwaCegarLoop]: 442 mSDtfsCounter, 492 mSDsluCounter, 1284 mSDsCounter, 0 mSdLazyCounter, 189 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 500 SdHoareTripleChecker+Valid, 1726 SdHoareTripleChecker+Invalid, 222 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 189 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2025-02-06 05:23:06,995 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [500 Valid, 1726 Invalid, 222 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 189 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2025-02-06 05:23:06,997 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 359 states. [2025-02-06 05:23:07,017 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 359 to 359. [2025-02-06 05:23:07,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 359 states, 212 states have (on average 1.2122641509433962) internal successors, (257), 215 states have internal predecessors, (257), 120 states have call successors, (120), 25 states have call predecessors, (120), 25 states have return successors, (126), 118 states have call predecessors, (126), 118 states have call successors, (126) [2025-02-06 05:23:07,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 359 states to 359 states and 503 transitions. [2025-02-06 05:23:07,023 INFO L78 Accepts]: Start accepts. Automaton has 359 states and 503 transitions. Word has length 157 [2025-02-06 05:23:07,024 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 05:23:07,024 INFO L471 AbstractCegarLoop]: Abstraction has 359 states and 503 transitions. [2025-02-06 05:23:07,024 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 6 states have internal predecessors, (55), 3 states have call successors, (27), 2 states have call predecessors, (27), 3 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) [2025-02-06 05:23:07,024 INFO L276 IsEmpty]: Start isEmpty. Operand 359 states and 503 transitions. [2025-02-06 05:23:07,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2025-02-06 05:23:07,028 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 05:23:07,029 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 7, 7, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 05:23:07,049 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 05:23:07,229 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 05:23:07,229 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-06 05:23:07,230 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 05:23:07,230 INFO L85 PathProgramCache]: Analyzing trace with hash -1136208583, now seen corresponding path program 1 times [2025-02-06 05:23:07,230 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 05:23:07,230 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1896788613] [2025-02-06 05:23:07,230 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 05:23:07,230 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 05:23:10,848 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 165 statements into 1 equivalence classes. [2025-02-06 05:23:10,991 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 165 of 165 statements. [2025-02-06 05:23:10,992 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 05:23:10,992 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 05:23:12,694 INFO L134 CoverageAnalysis]: Checked inductivity of 246 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 237 trivial. 0 not checked. [2025-02-06 05:23:12,694 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 05:23:12,694 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1896788613] [2025-02-06 05:23:12,695 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1896788613] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 05:23:12,695 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [617184186] [2025-02-06 05:23:12,695 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 05:23:12,695 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 05:23:12,695 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 05:23:12,697 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 05:23:12,699 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 05:23:17,224 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 165 statements into 1 equivalence classes. [2025-02-06 05:23:17,690 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 165 of 165 statements. [2025-02-06 05:23:17,691 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 05:23:17,691 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 05:23:17,711 INFO L256 TraceCheckSpWp]: Trace formula consists of 4582 conjuncts, 7 conjuncts are in the unsatisfiable core [2025-02-06 05:23:17,717 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 05:23:19,360 INFO L134 CoverageAnalysis]: Checked inductivity of 246 backedges. 102 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2025-02-06 05:23:19,360 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 05:23:19,360 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [617184186] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 05:23:19,360 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-06 05:23:19,360 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [7] total 13 [2025-02-06 05:23:19,360 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1007402492] [2025-02-06 05:23:19,360 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 05:23:19,362 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-02-06 05:23:19,362 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 05:23:19,363 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-02-06 05:23:19,363 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2025-02-06 05:23:19,363 INFO L87 Difference]: Start difference. First operand 359 states and 503 transitions. Second operand has 8 states, 8 states have (on average 7.625) internal successors, (61), 8 states have internal predecessors, (61), 4 states have call successors, (28), 2 states have call predecessors, (28), 4 states have return successors, (25), 4 states have call predecessors, (25), 4 states have call successors, (25) [2025-02-06 05:23:24,332 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 05:23:24,333 INFO L93 Difference]: Finished difference Result 691 states and 989 transitions. [2025-02-06 05:23:24,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-02-06 05:23:24,334 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.625) internal successors, (61), 8 states have internal predecessors, (61), 4 states have call successors, (28), 2 states have call predecessors, (28), 4 states have return successors, (25), 4 states have call predecessors, (25), 4 states have call successors, (25) Word has length 165 [2025-02-06 05:23:24,335 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 05:23:24,340 INFO L225 Difference]: With dead ends: 691 [2025-02-06 05:23:24,341 INFO L226 Difference]: Without dead ends: 380 [2025-02-06 05:23:24,343 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 177 GetRequests, 160 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=56, Invalid=286, Unknown=0, NotChecked=0, Total=342 [2025-02-06 05:23:24,345 INFO L435 NwaCegarLoop]: 425 mSDtfsCounter, 542 mSDsluCounter, 2057 mSDsCounter, 0 mSdLazyCounter, 406 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 559 SdHoareTripleChecker+Valid, 2482 SdHoareTripleChecker+Invalid, 450 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 406 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2025-02-06 05:23:24,346 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [559 Valid, 2482 Invalid, 450 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 406 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2025-02-06 05:23:24,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 380 states. [2025-02-06 05:23:24,375 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 380 to 378. [2025-02-06 05:23:24,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 378 states, 228 states have (on average 1.2236842105263157) internal successors, (279), 231 states have internal predecessors, (279), 122 states have call successors, (122), 25 states have call predecessors, (122), 26 states have return successors, (139), 121 states have call predecessors, (139), 120 states have call successors, (139) [2025-02-06 05:23:24,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 378 states to 378 states and 540 transitions. [2025-02-06 05:23:24,383 INFO L78 Accepts]: Start accepts. Automaton has 378 states and 540 transitions. Word has length 165 [2025-02-06 05:23:24,383 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 05:23:24,383 INFO L471 AbstractCegarLoop]: Abstraction has 378 states and 540 transitions. [2025-02-06 05:23:24,384 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.625) internal successors, (61), 8 states have internal predecessors, (61), 4 states have call successors, (28), 2 states have call predecessors, (28), 4 states have return successors, (25), 4 states have call predecessors, (25), 4 states have call successors, (25) [2025-02-06 05:23:24,384 INFO L276 IsEmpty]: Start isEmpty. Operand 378 states and 540 transitions. [2025-02-06 05:23:24,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2025-02-06 05:23:24,388 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 05:23:24,388 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 7, 7, 4, 4, 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, 1, 1, 1, 1, 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 05:23:24,411 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 05:23:24,588 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 05:23:24,589 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-06 05:23:24,589 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 05:23:24,590 INFO L85 PathProgramCache]: Analyzing trace with hash 60619573, now seen corresponding path program 1 times [2025-02-06 05:23:24,590 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 05:23:24,590 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1841694713] [2025-02-06 05:23:24,590 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 05:23:24,590 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 05:23:28,281 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 180 statements into 1 equivalence classes. [2025-02-06 05:23:28,450 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 180 of 180 statements. [2025-02-06 05:23:28,450 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 05:23:28,450 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 05:23:30,221 INFO L134 CoverageAnalysis]: Checked inductivity of 246 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 237 trivial. 0 not checked. [2025-02-06 05:23:30,222 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 05:23:30,222 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1841694713] [2025-02-06 05:23:30,222 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1841694713] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 05:23:30,222 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [279547538] [2025-02-06 05:23:30,222 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 05:23:30,223 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 05:23:30,223 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 05:23:30,226 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 05:23:30,228 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 05:23:34,833 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 180 statements into 1 equivalence classes. [2025-02-06 05:23:35,418 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 180 of 180 statements. [2025-02-06 05:23:35,418 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 05:23:35,418 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 05:23:35,438 INFO L256 TraceCheckSpWp]: Trace formula consists of 4709 conjuncts, 7 conjuncts are in the unsatisfiable core [2025-02-06 05:23:35,444 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 05:23:36,755 INFO L134 CoverageAnalysis]: Checked inductivity of 246 backedges. 102 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2025-02-06 05:23:36,756 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 05:23:36,756 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [279547538] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 05:23:36,756 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-06 05:23:36,756 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [6] total 11 [2025-02-06 05:23:36,756 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1189287854] [2025-02-06 05:23:36,756 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 05:23:36,756 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-02-06 05:23:36,756 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 05:23:36,757 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-02-06 05:23:36,757 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2025-02-06 05:23:36,757 INFO L87 Difference]: Start difference. First operand 378 states and 540 transitions. Second operand has 7 states, 7 states have (on average 10.285714285714286) internal successors, (72), 7 states have internal predecessors, (72), 4 states have call successors, (30), 2 states have call predecessors, (30), 3 states have return successors, (27), 4 states have call predecessors, (27), 4 states have call successors, (27) [2025-02-06 05:23:40,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 05:23:40,171 INFO L93 Difference]: Finished difference Result 714 states and 1037 transitions. [2025-02-06 05:23:40,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-02-06 05:23:40,172 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.285714285714286) internal successors, (72), 7 states have internal predecessors, (72), 4 states have call successors, (30), 2 states have call predecessors, (30), 3 states have return successors, (27), 4 states have call predecessors, (27), 4 states have call successors, (27) Word has length 180 [2025-02-06 05:23:40,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 05:23:40,178 INFO L225 Difference]: With dead ends: 714 [2025-02-06 05:23:40,178 INFO L226 Difference]: Without dead ends: 384 [2025-02-06 05:23:40,180 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 189 GetRequests, 176 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=40, Invalid=170, Unknown=0, NotChecked=0, Total=210 [2025-02-06 05:23:40,182 INFO L435 NwaCegarLoop]: 434 mSDtfsCounter, 508 mSDsluCounter, 1668 mSDsCounter, 0 mSdLazyCounter, 288 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 516 SdHoareTripleChecker+Valid, 2102 SdHoareTripleChecker+Invalid, 325 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 288 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2025-02-06 05:23:40,182 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [516 Valid, 2102 Invalid, 325 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 288 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2025-02-06 05:23:40,183 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 384 states. [2025-02-06 05:23:40,206 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 384 to 378. [2025-02-06 05:23:40,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 378 states, 228 states have (on average 1.2236842105263157) internal successors, (279), 231 states have internal predecessors, (279), 122 states have call successors, (122), 25 states have call predecessors, (122), 26 states have return successors, (139), 121 states have call predecessors, (139), 120 states have call successors, (139) [2025-02-06 05:23:40,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 378 states to 378 states and 540 transitions. [2025-02-06 05:23:40,211 INFO L78 Accepts]: Start accepts. Automaton has 378 states and 540 transitions. Word has length 180 [2025-02-06 05:23:40,212 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 05:23:40,213 INFO L471 AbstractCegarLoop]: Abstraction has 378 states and 540 transitions. [2025-02-06 05:23:40,213 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.285714285714286) internal successors, (72), 7 states have internal predecessors, (72), 4 states have call successors, (30), 2 states have call predecessors, (30), 3 states have return successors, (27), 4 states have call predecessors, (27), 4 states have call successors, (27) [2025-02-06 05:23:40,213 INFO L276 IsEmpty]: Start isEmpty. Operand 378 states and 540 transitions. [2025-02-06 05:23:40,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2025-02-06 05:23:40,217 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 05:23:40,218 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 7, 7, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:23:40,242 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 05:23:40,418 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 05:23:40,418 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-06 05:23:40,419 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 05:23:40,419 INFO L85 PathProgramCache]: Analyzing trace with hash 1287504403, now seen corresponding path program 1 times [2025-02-06 05:23:40,419 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 05:23:40,419 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1956705800] [2025-02-06 05:23:40,419 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 05:23:40,419 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 05:23:44,104 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 196 statements into 1 equivalence classes. [2025-02-06 05:23:44,258 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 196 of 196 statements. [2025-02-06 05:23:44,259 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 05:23:44,259 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat