./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/seq-mthreaded/rekh_aso.4.M4.c --full-output --architecture 32bit -------------------------------------------------------------------------------- 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/seq-mthreaded/rekh_aso.4.M4.c -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-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 32bit --witnessprinter.graph.data.programhash 057eb0aaa167d4a282deedb942f5c49b15cbcbec76af173c98e3ad8ae158d7c4 --- Real Ultimate output --- This is Ultimate 0.3.0-?-c00e63d-m [2025-02-05 16:24:28,433 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-05 16:24:28,478 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2025-02-05 16:24:28,482 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-05 16:24:28,482 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-05 16:24:28,495 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-05 16:24:28,496 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-05 16:24:28,496 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-05 16:24:28,496 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-05 16:24:28,496 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-05 16:24:28,496 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-05 16:24:28,497 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-05 16:24:28,497 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-05 16:24:28,497 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-05 16:24:28,497 INFO L153 SettingsManager]: * Use SBE=true [2025-02-05 16:24:28,497 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-05 16:24:28,497 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-05 16:24:28,497 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-05 16:24:28,497 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-05 16:24:28,497 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-05 16:24:28,497 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-05 16:24:28,498 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-05 16:24:28,498 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-05 16:24:28,498 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-05 16:24:28,498 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-05 16:24:28,498 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-05 16:24:28,498 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-05 16:24:28,498 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-05 16:24:28,498 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-05 16:24:28,498 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-05 16:24:28,498 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-05 16:24:28,498 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-05 16:24:28,498 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-05 16:24:28,499 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-05 16:24:28,499 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-05 16:24:28,499 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-02-05 16:24:28,499 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-02-05 16:24:28,499 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-05 16:24:28,499 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-05 16:24:28,499 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-05 16:24:28,499 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-05 16:24:28,499 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-05 16:24:28,499 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-05 16:24:28,499 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 -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 057eb0aaa167d4a282deedb942f5c49b15cbcbec76af173c98e3ad8ae158d7c4 [2025-02-05 16:24:28,707 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-05 16:24:28,712 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-05 16:24:28,714 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-05 16:24:28,714 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-05 16:24:28,715 INFO L274 PluginConnector]: CDTParser initialized [2025-02-05 16:24:28,715 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded/rekh_aso.4.M4.c [2025-02-05 16:24:29,949 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/a694921a4/5316cdf50e0f4b6d8ed0ab2db42c177f/FLAG753b0929e [2025-02-05 16:24:30,323 INFO L384 CDTParser]: Found 1 translation units. [2025-02-05 16:24:30,324 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/rekh_aso.4.M4.c [2025-02-05 16:24:30,351 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/a694921a4/5316cdf50e0f4b6d8ed0ab2db42c177f/FLAG753b0929e [2025-02-05 16:24:30,362 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/a694921a4/5316cdf50e0f4b6d8ed0ab2db42c177f [2025-02-05 16:24:30,364 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-05 16:24:30,366 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-05 16:24:30,367 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-05 16:24:30,367 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-05 16:24:30,370 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-05 16:24:30,370 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.02 04:24:30" (1/1) ... [2025-02-05 16:24:30,373 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5ea24f20 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 04:24:30, skipping insertion in model container [2025-02-05 16:24:30,373 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.02 04:24:30" (1/1) ... [2025-02-05 16:24:30,416 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-05 16:24:30,574 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/seq-mthreaded/rekh_aso.4.M4.c[1806,1819] [2025-02-05 16:24:31,022 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-05 16:24:31,067 INFO L200 MainTranslator]: Completed pre-run [2025-02-05 16:24:31,082 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"/tmp/aaaa/aso.bug4.i","-S") [39] [2025-02-05 16:24:31,092 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/seq-mthreaded/rekh_aso.4.M4.c[1806,1819] [2025-02-05 16:24:31,366 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-05 16:24:31,400 INFO L204 MainTranslator]: Completed translation [2025-02-05 16:24:31,401 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 04:24:31 WrapperNode [2025-02-05 16:24:31,402 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-05 16:24:31,403 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-05 16:24:31,404 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-05 16:24:31,404 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-05 16:24:31,409 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 04:24:31" (1/1) ... [2025-02-05 16:24:31,544 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 04:24:31" (1/1) ... [2025-02-05 16:24:31,966 INFO L138 Inliner]: procedures = 70, calls = 5776, calls flagged for inlining = 26, calls inlined = 26, statements flattened = 12751 [2025-02-05 16:24:31,966 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-05 16:24:31,967 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-05 16:24:31,967 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-05 16:24:31,967 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-05 16:24:31,974 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 04:24:31" (1/1) ... [2025-02-05 16:24:31,974 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 04:24:31" (1/1) ... [2025-02-05 16:24:32,019 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 04:24:31" (1/1) ... [2025-02-05 16:24:32,142 INFO L175 MemorySlicer]: Split 4205 memory accesses to 27 slices as follows [2, 8, 7, 2, 8, 379, 455, 113, 113, 186, 203, 186, 203, 186, 203, 186, 2, 203, 4, 186, 203, 186, 203, 186, 203, 186, 203]. 11 percent of accesses are in the largest equivalence class. The 544 initializations are split as follows [0, 0, 2, 2, 0, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 0, 27, 0, 27, 27, 27, 27, 27, 27, 27, 27]. The 577 writes are split as follows [1, 4, 3, 0, 4, 27, 27, 27, 27, 31, 26, 31, 26, 31, 26, 31, 1, 26, 0, 31, 26, 31, 26, 31, 26, 31, 26]. [2025-02-05 16:24:32,142 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 04:24:31" (1/1) ... [2025-02-05 16:24:32,142 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 04:24:31" (1/1) ... [2025-02-05 16:24:32,389 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 04:24:31" (1/1) ... [2025-02-05 16:24:32,426 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 04:24:31" (1/1) ... [2025-02-05 16:24:32,461 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 04:24:31" (1/1) ... [2025-02-05 16:24:32,491 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 04:24:31" (1/1) ... [2025-02-05 16:24:32,545 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-05 16:24:32,546 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-05 16:24:32,547 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-05 16:24:32,547 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-05 16:24:32,548 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 04:24:31" (1/1) ... [2025-02-05 16:24:32,553 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-05 16:24:32,565 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-05 16:24:32,579 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) [2025-02-05 16:24:32,584 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 [2025-02-05 16:24:32,604 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-05 16:24:32,604 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_cmd_forward [2025-02-05 16:24:32,604 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_cmd_forward [2025-02-05 16:24:32,605 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t2 [2025-02-05 16:24:32,605 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t2 [2025-02-05 16:24:32,605 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_nxtway_gs_mode [2025-02-05 16:24:32,605 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_nxtway_gs_mode [2025-02-05 16:24:32,605 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-02-05 16:24:32,605 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t0 [2025-02-05 16:24:32,605 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t0 [2025-02-05 16:24:32,605 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t1 [2025-02-05 16:24:32,605 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t1 [2025-02-05 16:24:32,605 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read___startrek_current_priority [2025-02-05 16:24:32,605 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read___startrek_current_priority [2025-02-05 16:24:32,605 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_obstacle_flag [2025-02-05 16:24:32,605 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_obstacle_flag [2025-02-05 16:24:32,605 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-02-05 16:24:32,605 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-02-05 16:24:32,605 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2025-02-05 16:24:32,605 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2025-02-05 16:24:32,605 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2025-02-05 16:24:32,606 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2025-02-05 16:24:32,606 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2025-02-05 16:24:32,606 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2025-02-05 16:24:32,606 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#8 [2025-02-05 16:24:32,606 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#9 [2025-02-05 16:24:32,606 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#10 [2025-02-05 16:24:32,606 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#11 [2025-02-05 16:24:32,606 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#12 [2025-02-05 16:24:32,606 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#13 [2025-02-05 16:24:32,606 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#14 [2025-02-05 16:24:32,606 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#15 [2025-02-05 16:24:32,606 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#16 [2025-02-05 16:24:32,607 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#17 [2025-02-05 16:24:32,607 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#18 [2025-02-05 16:24:32,607 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#19 [2025-02-05 16:24:32,607 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#20 [2025-02-05 16:24:32,607 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#21 [2025-02-05 16:24:32,607 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#22 [2025-02-05 16:24:32,607 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#23 [2025-02-05 16:24:32,607 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#24 [2025-02-05 16:24:32,607 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#25 [2025-02-05 16:24:32,607 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#26 [2025-02-05 16:24:32,607 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_count [2025-02-05 16:24:32,607 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_count [2025-02-05 16:24:32,607 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_gyro_sensor [2025-02-05 16:24:32,607 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_gyro_sensor [2025-02-05 16:24:32,608 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_cmd_turn [2025-02-05 16:24:32,608 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_cmd_turn [2025-02-05 16:24:32,608 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write___startrek_current_priority [2025-02-05 16:24:32,608 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write___startrek_current_priority [2025-02-05 16:24:32,608 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts1 [2025-02-05 16:24:32,608 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts1 [2025-02-05 16:24:32,608 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts2 [2025-02-05 16:24:32,608 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts2 [2025-02-05 16:24:32,608 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts3 [2025-02-05 16:24:32,608 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts3 [2025-02-05 16:24:32,608 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-02-05 16:24:32,608 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_hyperperiod [2025-02-05 16:24:32,608 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_hyperperiod [2025-02-05 16:24:32,608 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-02-05 16:24:32,608 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-02-05 16:24:32,608 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2025-02-05 16:24:32,608 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2025-02-05 16:24:32,608 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2025-02-05 16:24:32,608 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2025-02-05 16:24:32,608 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2025-02-05 16:24:32,608 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2025-02-05 16:24:32,608 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#8 [2025-02-05 16:24:32,608 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#9 [2025-02-05 16:24:32,608 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#10 [2025-02-05 16:24:32,608 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#11 [2025-02-05 16:24:32,608 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#12 [2025-02-05 16:24:32,608 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#13 [2025-02-05 16:24:32,608 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#14 [2025-02-05 16:24:32,608 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#15 [2025-02-05 16:24:32,608 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#16 [2025-02-05 16:24:32,609 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#17 [2025-02-05 16:24:32,609 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#18 [2025-02-05 16:24:32,609 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#19 [2025-02-05 16:24:32,609 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#20 [2025-02-05 16:24:32,609 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#21 [2025-02-05 16:24:32,609 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#22 [2025-02-05 16:24:32,609 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#23 [2025-02-05 16:24:32,609 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#24 [2025-02-05 16:24:32,609 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#25 [2025-02-05 16:24:32,609 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#26 [2025-02-05 16:24:32,609 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2025-02-05 16:24:32,609 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2025-02-05 16:24:32,609 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_speed [2025-02-05 16:24:32,609 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_speed [2025-02-05 16:24:32,609 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_cmd_forward [2025-02-05 16:24:32,609 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_cmd_forward [2025-02-05 16:24:32,609 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_obstacle_flag [2025-02-05 16:24:32,609 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_obstacle_flag [2025-02-05 16:24:32,609 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2025-02-05 16:24:32,609 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2025-02-05 16:24:32,609 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-02-05 16:24:32,609 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-02-05 16:24:32,609 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-02-05 16:24:32,609 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2025-02-05 16:24:32,609 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2025-02-05 16:24:32,609 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2025-02-05 16:24:32,610 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2025-02-05 16:24:32,610 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2025-02-05 16:24:32,610 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2025-02-05 16:24:32,610 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2025-02-05 16:24:32,610 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#10 [2025-02-05 16:24:32,611 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#11 [2025-02-05 16:24:32,611 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#12 [2025-02-05 16:24:32,611 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#13 [2025-02-05 16:24:32,611 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#14 [2025-02-05 16:24:32,611 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#15 [2025-02-05 16:24:32,611 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#16 [2025-02-05 16:24:32,611 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#17 [2025-02-05 16:24:32,611 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#18 [2025-02-05 16:24:32,611 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#19 [2025-02-05 16:24:32,611 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#20 [2025-02-05 16:24:32,611 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#21 [2025-02-05 16:24:32,611 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#22 [2025-02-05 16:24:32,611 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#23 [2025-02-05 16:24:32,611 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#24 [2025-02-05 16:24:32,612 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#25 [2025-02-05 16:24:32,612 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#26 [2025-02-05 16:24:32,612 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-05 16:24:32,612 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-05 16:24:32,612 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_systick_ms [2025-02-05 16:24:32,613 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_systick_ms [2025-02-05 16:24:32,613 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_get_count [2025-02-05 16:24:32,613 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_get_count [2025-02-05 16:24:32,613 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_nxtway_gs_mode [2025-02-05 16:24:32,613 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtway_gs_mode [2025-02-05 16:24:32,613 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_cmd_turn [2025-02-05 16:24:32,613 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_cmd_turn [2025-02-05 16:24:33,283 INFO L257 CfgBuilder]: Building ICFG [2025-02-05 16:24:33,286 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-05 16:24:33,614 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L234: call ULTIMATE.dealloc(OSEK_Task_ts1_~#pwm_l~0#1.base, OSEK_Task_ts1_~#pwm_l~0#1.offset);havoc OSEK_Task_ts1_~#pwm_l~0#1.base, OSEK_Task_ts1_~#pwm_l~0#1.offset;call ULTIMATE.dealloc(OSEK_Task_ts1_~#pwm_r~0#1.base, OSEK_Task_ts1_~#pwm_r~0#1.offset);havoc OSEK_Task_ts1_~#pwm_r~0#1.base, OSEK_Task_ts1_~#pwm_r~0#1.offset; [2025-02-05 16:24:33,614 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L96: call ULTIMATE.dealloc(balance_control_~#tmp~0#1.base, balance_control_~#tmp~0#1.offset);havoc balance_control_~#tmp~0#1.base, balance_control_~#tmp~0#1.offset;call ULTIMATE.dealloc(balance_control_~#tmp_theta_0~0#1.base, balance_control_~#tmp_theta_0~0#1.offset);havoc balance_control_~#tmp_theta_0~0#1.base, balance_control_~#tmp_theta_0~0#1.offset; [2025-02-05 16:24:43,082 INFO L? ?]: Removed 504 outVars from TransFormulas that were not future-live. [2025-02-05 16:24:43,082 INFO L308 CfgBuilder]: Performing block encoding [2025-02-05 16:24:43,182 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-05 16:24:43,185 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-05 16:24:43,186 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 05.02 04:24:43 BoogieIcfgContainer [2025-02-05 16:24:43,186 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-05 16:24:43,189 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-05 16:24:43,189 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-05 16:24:43,197 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-05 16:24:43,201 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.02 04:24:30" (1/3) ... [2025-02-05 16:24:43,201 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@62badec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.02 04:24:43, skipping insertion in model container [2025-02-05 16:24:43,201 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 04:24:31" (2/3) ... [2025-02-05 16:24:43,201 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@62badec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.02 04:24:43, skipping insertion in model container [2025-02-05 16:24:43,201 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 05.02 04:24:43" (3/3) ... [2025-02-05 16:24:43,202 INFO L128 eAbstractionObserver]: Analyzing ICFG rekh_aso.4.M4.c [2025-02-05 16:24:43,227 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-05 16:24:43,235 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG rekh_aso.4.M4.c that has 25 procedures, 3451 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2025-02-05 16:24:43,378 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-05 16:24:43,389 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;@3d2bb5f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-05 16:24:43,389 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-02-05 16:24:43,411 INFO L276 IsEmpty]: Start isEmpty. Operand has 3451 states, 1919 states have (on average 1.1756122980719124) internal successors, (2256), 2048 states have internal predecessors, (2256), 1506 states have call successors, (1506), 24 states have call predecessors, (1506), 24 states have return successors, (1506), 1406 states have call predecessors, (1506), 1506 states have call successors, (1506) [2025-02-05 16:24:43,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1379 [2025-02-05 16:24:43,550 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 16:24:43,552 INFO L218 NwaCegarLoop]: trace histogram [210, 210, 210, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-05 16:24:43,553 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 16:24:43,558 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 16:24:43,559 INFO L85 PathProgramCache]: Analyzing trace with hash 2136988256, now seen corresponding path program 1 times [2025-02-05 16:24:43,565 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 16:24:43,567 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1502475901] [2025-02-05 16:24:43,568 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 16:24:43,569 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 16:24:45,312 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1378 statements into 1 equivalence classes. [2025-02-05 16:24:45,517 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1378 of 1378 statements. [2025-02-05 16:24:45,520 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 16:24:45,520 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 16:24:46,567 INFO L134 CoverageAnalysis]: Checked inductivity of 87780 backedges. 0 proven. 418 refuted. 0 times theorem prover too weak. 87362 trivial. 0 not checked. [2025-02-05 16:24:46,567 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 16:24:46,568 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1502475901] [2025-02-05 16:24:46,568 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1502475901] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-05 16:24:46,568 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019882792] [2025-02-05 16:24:46,569 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 16:24:46,572 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-05 16:24:46,573 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-05 16:24:46,579 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) [2025-02-05 16:24:46,583 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 [2025-02-05 16:24:48,512 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1378 statements into 1 equivalence classes. [2025-02-05 16:24:49,037 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1378 of 1378 statements. [2025-02-05 16:24:49,037 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 16:24:49,037 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 16:24:49,060 INFO L256 TraceCheckSpWp]: Trace formula consists of 5933 conjuncts, 1 conjuncts are in the unsatisfiable core [2025-02-05 16:24:49,084 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-05 16:24:49,160 INFO L134 CoverageAnalysis]: Checked inductivity of 87780 backedges. 418 proven. 0 refuted. 0 times theorem prover too weak. 87362 trivial. 0 not checked. [2025-02-05 16:24:49,160 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-05 16:24:49,160 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2019882792] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 16:24:49,160 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-05 16:24:49,161 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2025-02-05 16:24:49,163 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [417543746] [2025-02-05 16:24:49,163 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 16:24:49,168 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-02-05 16:24:49,169 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 16:24:49,187 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-02-05 16:24:49,188 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-02-05 16:24:49,197 INFO L87 Difference]: Start difference. First operand has 3451 states, 1919 states have (on average 1.1756122980719124) internal successors, (2256), 2048 states have internal predecessors, (2256), 1506 states have call successors, (1506), 24 states have call predecessors, (1506), 24 states have return successors, (1506), 1406 states have call predecessors, (1506), 1506 states have call successors, (1506) Second operand has 2 states, 2 states have (on average 163.5) internal successors, (327), 2 states have internal predecessors, (327), 2 states have call successors, (214), 2 states have call predecessors, (214), 1 states have return successors, (212), 1 states have call predecessors, (212), 2 states have call successors, (212) [2025-02-05 16:24:49,595 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 16:24:49,596 INFO L93 Difference]: Finished difference Result 6897 states and 12008 transitions. [2025-02-05 16:24:49,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-02-05 16:24:49,598 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 163.5) internal successors, (327), 2 states have internal predecessors, (327), 2 states have call successors, (214), 2 states have call predecessors, (214), 1 states have return successors, (212), 1 states have call predecessors, (212), 2 states have call successors, (212) Word has length 1378 [2025-02-05 16:24:49,598 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 16:24:49,631 INFO L225 Difference]: With dead ends: 6897 [2025-02-05 16:24:49,632 INFO L226 Difference]: Without dead ends: 3446 [2025-02-05 16:24:49,678 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 1379 GetRequests, 1379 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-02-05 16:24:49,680 INFO L435 NwaCegarLoop]: 5266 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, 5266 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 [2025-02-05 16:24:49,680 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 5266 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-05 16:24:49,697 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3446 states. [2025-02-05 16:24:50,771 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3446 to 3446. [2025-02-05 16:24:50,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3446 states, 1915 states have (on average 1.174934725848564) internal successors, (2250), 2044 states have internal predecessors, (2250), 1506 states have call successors, (1506), 24 states have call predecessors, (1506), 24 states have return successors, (1505), 1405 states have call predecessors, (1505), 1505 states have call successors, (1505) [2025-02-05 16:24:50,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3446 states to 3446 states and 5261 transitions. [2025-02-05 16:24:50,817 INFO L78 Accepts]: Start accepts. Automaton has 3446 states and 5261 transitions. Word has length 1378 [2025-02-05 16:24:50,818 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 16:24:50,818 INFO L471 AbstractCegarLoop]: Abstraction has 3446 states and 5261 transitions. [2025-02-05 16:24:50,819 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 163.5) internal successors, (327), 2 states have internal predecessors, (327), 2 states have call successors, (214), 2 states have call predecessors, (214), 1 states have return successors, (212), 1 states have call predecessors, (212), 2 states have call successors, (212) [2025-02-05 16:24:50,819 INFO L276 IsEmpty]: Start isEmpty. Operand 3446 states and 5261 transitions. [2025-02-05 16:24:50,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1379 [2025-02-05 16:24:50,859 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 16:24:50,860 INFO L218 NwaCegarLoop]: trace histogram [210, 210, 210, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-05 16:24:50,878 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2025-02-05 16:24:51,065 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 [2025-02-05 16:24:51,066 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 16:24:51,066 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 16:24:51,067 INFO L85 PathProgramCache]: Analyzing trace with hash 826761212, now seen corresponding path program 1 times [2025-02-05 16:24:51,067 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 16:24:51,067 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1269283260] [2025-02-05 16:24:51,067 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 16:24:51,067 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 16:24:52,445 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1378 statements into 1 equivalence classes. [2025-02-05 16:24:52,798 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1378 of 1378 statements. [2025-02-05 16:24:52,798 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 16:24:52,798 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 16:24:54,704 INFO L134 CoverageAnalysis]: Checked inductivity of 87780 backedges. 624 proven. 3 refuted. 0 times theorem prover too weak. 87153 trivial. 0 not checked. [2025-02-05 16:24:54,705 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 16:24:54,705 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1269283260] [2025-02-05 16:24:54,705 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1269283260] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-05 16:24:54,705 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [639352585] [2025-02-05 16:24:54,705 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 16:24:54,710 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-05 16:24:54,710 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-05 16:24:54,715 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) [2025-02-05 16:24:54,720 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 [2025-02-05 16:24:56,902 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1378 statements into 1 equivalence classes. [2025-02-05 16:24:57,464 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1378 of 1378 statements. [2025-02-05 16:24:57,464 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 16:24:57,465 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 16:24:57,491 INFO L256 TraceCheckSpWp]: Trace formula consists of 5933 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-02-05 16:24:57,544 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-05 16:24:57,654 INFO L134 CoverageAnalysis]: Checked inductivity of 87780 backedges. 1460 proven. 0 refuted. 0 times theorem prover too weak. 86320 trivial. 0 not checked. [2025-02-05 16:24:57,654 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-05 16:24:57,654 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [639352585] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 16:24:57,654 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-05 16:24:57,655 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 4 [2025-02-05 16:24:57,655 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [515314977] [2025-02-05 16:24:57,655 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 16:24:57,657 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-05 16:24:57,658 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 16:24:57,664 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-05 16:24:57,664 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-05 16:24:57,665 INFO L87 Difference]: Start difference. First operand 3446 states and 5261 transitions. Second operand has 4 states, 4 states have (on average 82.75) internal successors, (331), 4 states have internal predecessors, (331), 2 states have call successors, (214), 2 states have call predecessors, (214), 3 states have return successors, (212), 2 states have call predecessors, (212), 2 states have call successors, (212) [2025-02-05 16:25:05,982 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 16:25:05,982 INFO L93 Difference]: Finished difference Result 6887 states and 10545 transitions. [2025-02-05 16:25:05,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-05 16:25:05,986 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 82.75) internal successors, (331), 4 states have internal predecessors, (331), 2 states have call successors, (214), 2 states have call predecessors, (214), 3 states have return successors, (212), 2 states have call predecessors, (212), 2 states have call successors, (212) Word has length 1378 [2025-02-05 16:25:05,989 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 16:25:06,062 INFO L225 Difference]: With dead ends: 6887 [2025-02-05 16:25:06,062 INFO L226 Difference]: Without dead ends: 3444 [2025-02-05 16:25:06,211 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 1382 GetRequests, 1379 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-02-05 16:25:06,215 INFO L435 NwaCegarLoop]: 3893 mSDtfsCounter, 1 mSDsluCounter, 5053 mSDsCounter, 0 mSdLazyCounter, 6822 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 8946 SdHoareTripleChecker+Invalid, 6826 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 6822 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.9s IncrementalHoareTripleChecker+Time [2025-02-05 16:25:06,215 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 8946 Invalid, 6826 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4 Valid, 6822 Invalid, 0 Unknown, 0 Unchecked, 7.9s Time] [2025-02-05 16:25:06,226 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3444 states. [2025-02-05 16:25:07,073 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3444 to 3442. [2025-02-05 16:25:07,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3442 states, 1913 states have (on average 1.1740721380031365) internal successors, (2246), 2042 states have internal predecessors, (2246), 1504 states have call successors, (1504), 24 states have call predecessors, (1504), 24 states have return successors, (1503), 1403 states have call predecessors, (1503), 1503 states have call successors, (1503) [2025-02-05 16:25:07,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3442 states to 3442 states and 5253 transitions. [2025-02-05 16:25:07,100 INFO L78 Accepts]: Start accepts. Automaton has 3442 states and 5253 transitions. Word has length 1378 [2025-02-05 16:25:07,104 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 16:25:07,104 INFO L471 AbstractCegarLoop]: Abstraction has 3442 states and 5253 transitions. [2025-02-05 16:25:07,105 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 82.75) internal successors, (331), 4 states have internal predecessors, (331), 2 states have call successors, (214), 2 states have call predecessors, (214), 3 states have return successors, (212), 2 states have call predecessors, (212), 2 states have call successors, (212) [2025-02-05 16:25:07,105 INFO L276 IsEmpty]: Start isEmpty. Operand 3442 states and 5253 transitions. [2025-02-05 16:25:07,118 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1416 [2025-02-05 16:25:07,119 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 16:25:07,119 INFO L218 NwaCegarLoop]: trace histogram [209, 209, 209, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-05 16:25:07,138 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 [2025-02-05 16:25:07,324 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 [2025-02-05 16:25:07,325 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 16:25:07,325 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 16:25:07,326 INFO L85 PathProgramCache]: Analyzing trace with hash -36060924, now seen corresponding path program 1 times [2025-02-05 16:25:07,326 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 16:25:07,326 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2031670203] [2025-02-05 16:25:07,326 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 16:25:07,327 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 16:25:08,624 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1415 statements into 1 equivalence classes. [2025-02-05 16:25:08,800 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1415 of 1415 statements. [2025-02-05 16:25:08,801 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 16:25:08,801 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 16:25:09,701 INFO L134 CoverageAnalysis]: Checked inductivity of 86951 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 86951 trivial. 0 not checked. [2025-02-05 16:25:09,702 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 16:25:09,702 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2031670203] [2025-02-05 16:25:09,702 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2031670203] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 16:25:09,702 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-05 16:25:09,702 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-05 16:25:09,702 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1217478184] [2025-02-05 16:25:09,702 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 16:25:09,707 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-05 16:25:09,707 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 16:25:09,708 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-05 16:25:09,708 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-05 16:25:09,709 INFO L87 Difference]: Start difference. First operand 3442 states and 5253 transitions. Second operand has 3 states, 3 states have (on average 118.33333333333333) internal successors, (355), 3 states have internal predecessors, (355), 2 states have call successors, (216), 2 states have call predecessors, (216), 2 states have return successors, (214), 2 states have call predecessors, (214), 2 states have call successors, (214) [2025-02-05 16:25:09,852 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 16:25:09,852 INFO L93 Difference]: Finished difference Result 6879 states and 10527 transitions. [2025-02-05 16:25:09,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-05 16:25:09,857 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 118.33333333333333) internal successors, (355), 3 states have internal predecessors, (355), 2 states have call successors, (216), 2 states have call predecessors, (216), 2 states have return successors, (214), 2 states have call predecessors, (214), 2 states have call successors, (214) Word has length 1415 [2025-02-05 16:25:09,859 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 16:25:09,891 INFO L225 Difference]: With dead ends: 6879 [2025-02-05 16:25:09,891 INFO L226 Difference]: Without dead ends: 3442 [2025-02-05 16:25:09,911 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-05 16:25:09,913 INFO L435 NwaCegarLoop]: 5251 mSDtfsCounter, 0 mSDsluCounter, 5241 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 10492 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-05 16:25:09,914 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 10492 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-05 16:25:09,919 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3442 states. [2025-02-05 16:25:10,659 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3442 to 3442. [2025-02-05 16:25:10,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3442 states, 1913 states have (on average 1.173549398849974) internal successors, (2245), 2042 states have internal predecessors, (2245), 1504 states have call successors, (1504), 24 states have call predecessors, (1504), 24 states have return successors, (1503), 1403 states have call predecessors, (1503), 1503 states have call successors, (1503) [2025-02-05 16:25:10,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3442 states to 3442 states and 5252 transitions. [2025-02-05 16:25:10,691 INFO L78 Accepts]: Start accepts. Automaton has 3442 states and 5252 transitions. Word has length 1415 [2025-02-05 16:25:10,693 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 16:25:10,695 INFO L471 AbstractCegarLoop]: Abstraction has 3442 states and 5252 transitions. [2025-02-05 16:25:10,695 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 118.33333333333333) internal successors, (355), 3 states have internal predecessors, (355), 2 states have call successors, (216), 2 states have call predecessors, (216), 2 states have return successors, (214), 2 states have call predecessors, (214), 2 states have call successors, (214) [2025-02-05 16:25:10,698 INFO L276 IsEmpty]: Start isEmpty. Operand 3442 states and 5252 transitions. [2025-02-05 16:25:10,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1424 [2025-02-05 16:25:10,714 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 16:25:10,714 INFO L218 NwaCegarLoop]: trace histogram [209, 209, 209, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-05 16:25:10,715 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-02-05 16:25:10,715 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 16:25:10,715 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 16:25:10,716 INFO L85 PathProgramCache]: Analyzing trace with hash -841091389, now seen corresponding path program 1 times [2025-02-05 16:25:10,716 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 16:25:10,718 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1079531922] [2025-02-05 16:25:10,718 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 16:25:10,718 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 16:25:12,093 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1423 statements into 1 equivalence classes. [2025-02-05 16:25:12,333 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1423 of 1423 statements. [2025-02-05 16:25:12,334 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 16:25:12,334 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 16:25:15,670 INFO L134 CoverageAnalysis]: Checked inductivity of 86954 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 86954 trivial. 0 not checked. [2025-02-05 16:25:15,674 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 16:25:15,674 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1079531922] [2025-02-05 16:25:15,674 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1079531922] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 16:25:15,674 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-05 16:25:15,674 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-05 16:25:15,674 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [561259789] [2025-02-05 16:25:15,674 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 16:25:15,675 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-05 16:25:15,675 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 16:25:15,676 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-05 16:25:15,676 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-02-05 16:25:15,676 INFO L87 Difference]: Start difference. First operand 3442 states and 5252 transitions. Second operand has 5 states, 4 states have (on average 89.25) internal successors, (357), 5 states have internal predecessors, (357), 4 states have call successors, (218), 2 states have call predecessors, (218), 2 states have return successors, (216), 3 states have call predecessors, (216), 4 states have call successors, (216) [2025-02-05 16:25:24,063 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 16:25:24,064 INFO L93 Difference]: Finished difference Result 7892 states and 12050 transitions. [2025-02-05 16:25:24,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-05 16:25:24,066 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 89.25) internal successors, (357), 5 states have internal predecessors, (357), 4 states have call successors, (218), 2 states have call predecessors, (218), 2 states have return successors, (216), 3 states have call predecessors, (216), 4 states have call successors, (216) Word has length 1423 [2025-02-05 16:25:24,067 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 16:25:24,103 INFO L225 Difference]: With dead ends: 7892 [2025-02-05 16:25:24,104 INFO L226 Difference]: Without dead ends: 4455 [2025-02-05 16:25:24,124 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2025-02-05 16:25:24,125 INFO L435 NwaCegarLoop]: 6705 mSDtfsCounter, 8134 mSDsluCounter, 2942 mSDsCounter, 0 mSdLazyCounter, 3903 mSolverCounterSat, 1681 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8134 SdHoareTripleChecker+Valid, 9647 SdHoareTripleChecker+Invalid, 5584 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1681 IncrementalHoareTripleChecker+Valid, 3903 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.9s IncrementalHoareTripleChecker+Time [2025-02-05 16:25:24,125 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [8134 Valid, 9647 Invalid, 5584 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1681 Valid, 3903 Invalid, 0 Unknown, 0 Unchecked, 7.9s Time] [2025-02-05 16:25:24,132 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4455 states. [2025-02-05 16:25:25,215 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4455 to 4452. [2025-02-05 16:25:25,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4452 states, 2551 states have (on average 1.1920815366522932) internal successors, (3041), 2680 states have internal predecessors, (3041), 1866 states have call successors, (1866), 35 states have call predecessors, (1866), 34 states have return successors, (1865), 1764 states have call predecessors, (1865), 1865 states have call successors, (1865) [2025-02-05 16:25:25,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4452 states to 4452 states and 6772 transitions. [2025-02-05 16:25:25,297 INFO L78 Accepts]: Start accepts. Automaton has 4452 states and 6772 transitions. Word has length 1423 [2025-02-05 16:25:25,299 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 16:25:25,302 INFO L471 AbstractCegarLoop]: Abstraction has 4452 states and 6772 transitions. [2025-02-05 16:25:25,303 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 89.25) internal successors, (357), 5 states have internal predecessors, (357), 4 states have call successors, (218), 2 states have call predecessors, (218), 2 states have return successors, (216), 3 states have call predecessors, (216), 4 states have call successors, (216) [2025-02-05 16:25:25,303 INFO L276 IsEmpty]: Start isEmpty. Operand 4452 states and 6772 transitions. [2025-02-05 16:25:25,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1428 [2025-02-05 16:25:25,335 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 16:25:25,336 INFO L218 NwaCegarLoop]: trace histogram [209, 209, 209, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-05 16:25:25,336 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-02-05 16:25:25,337 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 16:25:25,338 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 16:25:25,338 INFO L85 PathProgramCache]: Analyzing trace with hash 1384771940, now seen corresponding path program 1 times [2025-02-05 16:25:25,338 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 16:25:25,339 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [967394588] [2025-02-05 16:25:25,339 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 16:25:25,339 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 16:25:26,959 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1427 statements into 1 equivalence classes. [2025-02-05 16:25:27,136 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1427 of 1427 statements. [2025-02-05 16:25:27,137 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 16:25:27,137 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 16:25:28,372 INFO L134 CoverageAnalysis]: Checked inductivity of 86954 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 86948 trivial. 0 not checked. [2025-02-05 16:25:28,373 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 16:25:28,373 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [967394588] [2025-02-05 16:25:28,373 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [967394588] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-05 16:25:28,373 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1911021886] [2025-02-05 16:25:28,373 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 16:25:28,374 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-05 16:25:28,374 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-05 16:25:28,376 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) [2025-02-05 16:25:28,381 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 [2025-02-05 16:25:30,664 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1427 statements into 1 equivalence classes. [2025-02-05 16:25:31,233 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1427 of 1427 statements. [2025-02-05 16:25:31,234 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 16:25:31,234 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 16:25:31,264 INFO L256 TraceCheckSpWp]: Trace formula consists of 6110 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-02-05 16:25:31,289 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-05 16:25:31,405 INFO L134 CoverageAnalysis]: Checked inductivity of 86954 backedges. 834 proven. 0 refuted. 0 times theorem prover too weak. 86120 trivial. 0 not checked. [2025-02-05 16:25:31,405 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-05 16:25:31,406 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1911021886] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 16:25:31,406 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-05 16:25:31,407 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [6] total 8 [2025-02-05 16:25:31,407 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [942286526] [2025-02-05 16:25:31,407 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 16:25:31,408 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-05 16:25:31,408 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 16:25:31,409 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-05 16:25:31,409 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2025-02-05 16:25:31,410 INFO L87 Difference]: Start difference. First operand 4452 states and 6772 transitions. Second operand has 5 states, 5 states have (on average 72.8) internal successors, (364), 5 states have internal predecessors, (364), 3 states have call successors, (219), 3 states have call predecessors, (219), 3 states have return successors, (217), 3 states have call predecessors, (217), 3 states have call successors, (217) [2025-02-05 16:25:40,966 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 16:25:40,967 INFO L93 Difference]: Finished difference Result 11386 states and 17359 transitions. [2025-02-05 16:25:40,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-05 16:25:40,968 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 72.8) internal successors, (364), 5 states have internal predecessors, (364), 3 states have call successors, (219), 3 states have call predecessors, (219), 3 states have return successors, (217), 3 states have call predecessors, (217), 3 states have call successors, (217) Word has length 1427 [2025-02-05 16:25:40,969 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 16:25:41,043 INFO L225 Difference]: With dead ends: 11386 [2025-02-05 16:25:41,043 INFO L226 Difference]: Without dead ends: 7644 [2025-02-05 16:25:41,076 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 1432 GetRequests, 1426 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2025-02-05 16:25:41,077 INFO L435 NwaCegarLoop]: 6937 mSDtfsCounter, 5157 mSDsluCounter, 10495 mSDsCounter, 0 mSdLazyCounter, 6273 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5157 SdHoareTripleChecker+Valid, 17432 SdHoareTripleChecker+Invalid, 6275 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 6273 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.1s IncrementalHoareTripleChecker+Time [2025-02-05 16:25:41,077 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5157 Valid, 17432 Invalid, 6275 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 6273 Invalid, 0 Unknown, 0 Unchecked, 9.1s Time] [2025-02-05 16:25:41,088 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7644 states. [2025-02-05 16:25:43,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7644 to 7614. [2025-02-05 16:25:43,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7614 states, 4371 states have (on average 1.1935483870967742) internal successors, (5217), 4602 states have internal predecessors, (5217), 3178 states have call successors, (3178), 61 states have call predecessors, (3178), 64 states have return successors, (3209), 3003 states have call predecessors, (3209), 3176 states have call successors, (3209) [2025-02-05 16:25:43,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7614 states to 7614 states and 11604 transitions. [2025-02-05 16:25:43,301 INFO L78 Accepts]: Start accepts. Automaton has 7614 states and 11604 transitions. Word has length 1427 [2025-02-05 16:25:43,303 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 16:25:43,303 INFO L471 AbstractCegarLoop]: Abstraction has 7614 states and 11604 transitions. [2025-02-05 16:25:43,303 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 72.8) internal successors, (364), 5 states have internal predecessors, (364), 3 states have call successors, (219), 3 states have call predecessors, (219), 3 states have return successors, (217), 3 states have call predecessors, (217), 3 states have call successors, (217) [2025-02-05 16:25:43,303 INFO L276 IsEmpty]: Start isEmpty. Operand 7614 states and 11604 transitions. [2025-02-05 16:25:43,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1429 [2025-02-05 16:25:43,319 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 16:25:43,320 INFO L218 NwaCegarLoop]: trace histogram [209, 209, 209, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-05 16:25:43,338 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2025-02-05 16:25:43,520 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-05 16:25:43,520 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 16:25:43,521 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 16:25:43,521 INFO L85 PathProgramCache]: Analyzing trace with hash 1143875545, now seen corresponding path program 1 times [2025-02-05 16:25:43,521 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 16:25:43,521 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [117859653] [2025-02-05 16:25:43,521 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 16:25:43,522 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 16:25:44,692 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1428 statements into 1 equivalence classes. [2025-02-05 16:25:44,810 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1428 of 1428 statements. [2025-02-05 16:25:44,811 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 16:25:44,811 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 16:25:46,228 INFO L134 CoverageAnalysis]: Checked inductivity of 86954 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 86949 trivial. 0 not checked. [2025-02-05 16:25:46,228 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 16:25:46,228 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [117859653] [2025-02-05 16:25:46,228 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [117859653] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-05 16:25:46,228 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1523730155] [2025-02-05 16:25:46,229 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 16:25:46,229 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-05 16:25:46,229 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-05 16:25:46,233 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) [2025-02-05 16:25:46,238 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