./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/seq-mthreaded/rekh_aso.2.M4-2.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.2.M4-2.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 20976b2d8a648a632a55cb7b6a072d8c835d658a3592a366af91723667ead694 --- Real Ultimate output --- This is Ultimate 0.3.0-?-c00e63d-m [2025-02-05 16:23:58,118 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-05 16:23:58,176 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2025-02-05 16:23:58,183 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-05 16:23:58,184 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-05 16:23:58,203 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-05 16:23:58,205 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-05 16:23:58,205 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-05 16:23:58,205 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-05 16:23:58,205 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-05 16:23:58,206 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-05 16:23:58,206 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-05 16:23:58,207 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-05 16:23:58,207 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-05 16:23:58,207 INFO L153 SettingsManager]: * Use SBE=true [2025-02-05 16:23:58,207 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-05 16:23:58,207 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-05 16:23:58,207 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-05 16:23:58,208 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-05 16:23:58,208 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-05 16:23:58,208 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-05 16:23:58,208 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-05 16:23:58,208 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-05 16:23:58,208 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-05 16:23:58,208 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-05 16:23:58,208 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-05 16:23:58,208 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-05 16:23:58,208 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-05 16:23:58,208 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-05 16:23:58,208 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-05 16:23:58,208 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-05 16:23:58,209 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-05 16:23:58,209 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-05 16:23:58,209 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-05 16:23:58,209 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-05 16:23:58,209 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-02-05 16:23:58,209 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-02-05 16:23:58,210 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-05 16:23:58,210 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-05 16:23:58,210 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-05 16:23:58,210 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-05 16:23:58,210 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-05 16:23:58,210 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-05 16:23:58,210 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 -> 20976b2d8a648a632a55cb7b6a072d8c835d658a3592a366af91723667ead694 [2025-02-05 16:23:58,449 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-05 16:23:58,457 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-05 16:23:58,458 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-05 16:23:58,460 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-05 16:23:58,460 INFO L274 PluginConnector]: CDTParser initialized [2025-02-05 16:23:58,461 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded/rekh_aso.2.M4-2.c [2025-02-05 16:23:59,584 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/ec940964f/525c1efee3bd483ea7de774d00d5a3d7/FLAGc3614e68e [2025-02-05 16:24:00,058 INFO L384 CDTParser]: Found 1 translation units. [2025-02-05 16:24:00,060 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/rekh_aso.2.M4-2.c [2025-02-05 16:24:00,081 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/ec940964f/525c1efee3bd483ea7de774d00d5a3d7/FLAGc3614e68e [2025-02-05 16:24:00,179 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/ec940964f/525c1efee3bd483ea7de774d00d5a3d7 [2025-02-05 16:24:00,181 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-05 16:24:00,182 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-05 16:24:00,183 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-05 16:24:00,183 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-05 16:24:00,186 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-05 16:24:00,186 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.02 04:24:00" (1/1) ... [2025-02-05 16:24:00,187 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@514ee6d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 04:24:00, skipping insertion in model container [2025-02-05 16:24:00,187 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.02 04:24:00" (1/1) ... [2025-02-05 16:24:00,247 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-05 16:24:00,423 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.2.M4-2.c[1807,1820] [2025-02-05 16:24:00,924 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-05 16:24:00,975 INFO L200 MainTranslator]: Completed pre-run [2025-02-05 16:24:00,982 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"/tmp/aaaa/aso.ok2.i","-S") [39] [2025-02-05 16:24:00,986 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.2.M4-2.c[1807,1820] [2025-02-05 16:24:01,271 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-05 16:24:01,293 INFO L204 MainTranslator]: Completed translation [2025-02-05 16:24:01,293 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 04:24:01 WrapperNode [2025-02-05 16:24:01,294 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-05 16:24:01,294 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-05 16:24:01,294 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-05 16:24:01,295 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-05 16:24:01,299 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 04:24:01" (1/1) ... [2025-02-05 16:24:01,376 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 04:24:01" (1/1) ... [2025-02-05 16:24:01,770 INFO L138 Inliner]: procedures = 70, calls = 5777, calls flagged for inlining = 25, calls inlined = 25, statements flattened = 12724 [2025-02-05 16:24:01,771 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-05 16:24:01,775 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-05 16:24:01,775 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-05 16:24:01,775 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-05 16:24:01,800 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 04:24:01" (1/1) ... [2025-02-05 16:24:01,801 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 04:24:01" (1/1) ... [2025-02-05 16:24:01,891 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 04:24:01" (1/1) ... [2025-02-05 16:24:01,990 INFO L175 MemorySlicer]: Split 4205 memory accesses to 27 slices as follows [2, 2, 379, 455, 113, 113, 186, 203, 186, 203, 186, 203, 186, 8, 203, 186, 203, 186, 203, 186, 7, 203, 186, 203, 2, 8, 4]. 11 percent of accesses are in the largest equivalence class. The 544 initializations are split as follows [0, 2, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 0, 27, 27, 27, 27, 27, 27, 2, 27, 27, 27, 0, 0, 0]. The 577 writes are split as follows [1, 0, 27, 27, 27, 27, 31, 26, 31, 26, 31, 26, 31, 4, 26, 31, 26, 31, 26, 31, 3, 26, 31, 26, 1, 4, 0]. [2025-02-05 16:24:01,991 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 04:24:01" (1/1) ... [2025-02-05 16:24:01,991 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 04:24:01" (1/1) ... [2025-02-05 16:24:02,175 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 04:24:01" (1/1) ... [2025-02-05 16:24:02,192 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 04:24:01" (1/1) ... [2025-02-05 16:24:02,218 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 04:24:01" (1/1) ... [2025-02-05 16:24:02,310 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 04:24:01" (1/1) ... [2025-02-05 16:24:02,352 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-05 16:24:02,354 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-05 16:24:02,354 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-05 16:24:02,354 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-05 16:24:02,355 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 04:24:01" (1/1) ... [2025-02-05 16:24:02,359 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-05 16:24:02,369 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-05 16:24:02,381 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 16:24:02,384 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 16:24:02,397 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-05 16:24:02,397 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_trans [2025-02-05 16:24:02,397 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_trans [2025-02-05 16:24:02,398 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_cmd_forward [2025-02-05 16:24:02,398 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_cmd_forward [2025-02-05 16:24:02,398 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t2 [2025-02-05 16:24:02,398 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t2 [2025-02-05 16:24:02,398 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_nxtway_gs_mode [2025-02-05 16:24:02,398 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_nxtway_gs_mode [2025-02-05 16:24:02,398 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-02-05 16:24:02,398 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t0 [2025-02-05 16:24:02,398 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t0 [2025-02-05 16:24:02,398 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t1 [2025-02-05 16:24:02,398 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t1 [2025-02-05 16:24:02,398 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read___startrek_current_priority [2025-02-05 16:24:02,398 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read___startrek_current_priority [2025-02-05 16:24:02,398 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_obstacle_flag [2025-02-05 16:24:02,398 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_obstacle_flag [2025-02-05 16:24:02,398 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-02-05 16:24:02,398 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-02-05 16:24:02,398 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2025-02-05 16:24:02,398 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2025-02-05 16:24:02,398 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2025-02-05 16:24:02,398 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2025-02-05 16:24:02,398 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2025-02-05 16:24:02,398 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2025-02-05 16:24:02,398 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#8 [2025-02-05 16:24:02,398 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#9 [2025-02-05 16:24:02,398 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#10 [2025-02-05 16:24:02,398 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#11 [2025-02-05 16:24:02,399 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#12 [2025-02-05 16:24:02,399 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#13 [2025-02-05 16:24:02,399 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#14 [2025-02-05 16:24:02,399 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#15 [2025-02-05 16:24:02,399 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#16 [2025-02-05 16:24:02,399 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#17 [2025-02-05 16:24:02,399 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#18 [2025-02-05 16:24:02,399 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#19 [2025-02-05 16:24:02,399 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#20 [2025-02-05 16:24:02,399 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#21 [2025-02-05 16:24:02,399 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#22 [2025-02-05 16:24:02,399 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#23 [2025-02-05 16:24:02,399 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#24 [2025-02-05 16:24:02,399 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#25 [2025-02-05 16:24:02,399 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#26 [2025-02-05 16:24:02,399 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_count [2025-02-05 16:24:02,399 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_count [2025-02-05 16:24:02,399 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_gyro_sensor [2025-02-05 16:24:02,399 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_gyro_sensor [2025-02-05 16:24:02,399 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_cmd_turn [2025-02-05 16:24:02,399 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_cmd_turn [2025-02-05 16:24:02,399 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write___startrek_current_priority [2025-02-05 16:24:02,399 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write___startrek_current_priority [2025-02-05 16:24:02,399 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts1 [2025-02-05 16:24:02,399 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts1 [2025-02-05 16:24:02,399 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts2 [2025-02-05 16:24:02,399 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts2 [2025-02-05 16:24:02,399 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts3 [2025-02-05 16:24:02,399 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts3 [2025-02-05 16:24:02,399 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-02-05 16:24:02,399 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_hyperperiod [2025-02-05 16:24:02,399 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_hyperperiod [2025-02-05 16:24:02,399 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-02-05 16:24:02,400 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-02-05 16:24:02,400 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2025-02-05 16:24:02,400 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2025-02-05 16:24:02,400 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2025-02-05 16:24:02,400 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2025-02-05 16:24:02,400 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2025-02-05 16:24:02,400 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2025-02-05 16:24:02,400 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#8 [2025-02-05 16:24:02,400 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#9 [2025-02-05 16:24:02,400 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#10 [2025-02-05 16:24:02,400 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#11 [2025-02-05 16:24:02,400 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#12 [2025-02-05 16:24:02,400 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#13 [2025-02-05 16:24:02,400 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#14 [2025-02-05 16:24:02,400 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#15 [2025-02-05 16:24:02,400 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#16 [2025-02-05 16:24:02,400 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#17 [2025-02-05 16:24:02,400 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#18 [2025-02-05 16:24:02,400 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#19 [2025-02-05 16:24:02,400 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#20 [2025-02-05 16:24:02,400 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#21 [2025-02-05 16:24:02,400 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#22 [2025-02-05 16:24:02,400 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#23 [2025-02-05 16:24:02,400 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#24 [2025-02-05 16:24:02,400 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#25 [2025-02-05 16:24:02,400 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#26 [2025-02-05 16:24:02,400 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2025-02-05 16:24:02,401 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2025-02-05 16:24:02,401 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_speed [2025-02-05 16:24:02,401 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_speed [2025-02-05 16:24:02,401 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_cmd_forward [2025-02-05 16:24:02,401 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_cmd_forward [2025-02-05 16:24:02,401 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_obstacle_flag [2025-02-05 16:24:02,401 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_obstacle_flag [2025-02-05 16:24:02,401 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2025-02-05 16:24:02,401 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2025-02-05 16:24:02,401 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-02-05 16:24:02,401 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-02-05 16:24:02,401 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-02-05 16:24:02,401 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2025-02-05 16:24:02,401 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2025-02-05 16:24:02,401 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2025-02-05 16:24:02,401 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2025-02-05 16:24:02,401 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2025-02-05 16:24:02,401 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2025-02-05 16:24:02,401 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2025-02-05 16:24:02,401 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#10 [2025-02-05 16:24:02,401 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#11 [2025-02-05 16:24:02,401 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#12 [2025-02-05 16:24:02,401 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#13 [2025-02-05 16:24:02,401 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#14 [2025-02-05 16:24:02,402 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#15 [2025-02-05 16:24:02,402 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#16 [2025-02-05 16:24:02,402 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#17 [2025-02-05 16:24:02,402 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#18 [2025-02-05 16:24:02,402 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#19 [2025-02-05 16:24:02,402 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#20 [2025-02-05 16:24:02,402 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#21 [2025-02-05 16:24:02,402 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#22 [2025-02-05 16:24:02,402 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#23 [2025-02-05 16:24:02,402 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#24 [2025-02-05 16:24:02,402 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#25 [2025-02-05 16:24:02,402 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#26 [2025-02-05 16:24:02,402 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-05 16:24:02,402 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-05 16:24:02,402 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_systick_ms [2025-02-05 16:24:02,402 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_systick_ms [2025-02-05 16:24:02,402 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_get_count [2025-02-05 16:24:02,402 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_get_count [2025-02-05 16:24:02,402 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_nxtway_gs_mode [2025-02-05 16:24:02,402 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtway_gs_mode [2025-02-05 16:24:02,402 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_cmd_turn [2025-02-05 16:24:02,402 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_cmd_turn [2025-02-05 16:24:03,011 INFO L257 CfgBuilder]: Building ICFG [2025-02-05 16:24:03,013 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-05 16:24:03,352 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 16:24:03,353 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 16:24:12,948 INFO L? ?]: Removed 503 outVars from TransFormulas that were not future-live. [2025-02-05 16:24:12,949 INFO L308 CfgBuilder]: Performing block encoding [2025-02-05 16:24:13,004 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-05 16:24:13,005 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-05 16:24:13,005 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 05.02 04:24:13 BoogieIcfgContainer [2025-02-05 16:24:13,005 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-05 16:24:13,007 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-05 16:24:13,007 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-05 16:24:13,011 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-05 16:24:13,012 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.02 04:24:00" (1/3) ... [2025-02-05 16:24:13,012 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ef22653 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.02 04:24:13, skipping insertion in model container [2025-02-05 16:24:13,013 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 04:24:01" (2/3) ... [2025-02-05 16:24:13,013 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ef22653 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.02 04:24:13, skipping insertion in model container [2025-02-05 16:24:13,013 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 05.02 04:24:13" (3/3) ... [2025-02-05 16:24:13,015 INFO L128 eAbstractionObserver]: Analyzing ICFG rekh_aso.2.M4-2.c [2025-02-05 16:24:13,025 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-05 16:24:13,028 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG rekh_aso.2.M4-2.c that has 26 procedures, 3454 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2025-02-05 16:24:13,160 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-05 16:24:13,170 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;@1cf0096f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-05 16:24:13,171 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-02-05 16:24:13,185 INFO L276 IsEmpty]: Start isEmpty. Operand has 3454 states, 1919 states have (on average 1.1756122980719124) internal successors, (2256), 2049 states have internal predecessors, (2256), 1508 states have call successors, (1508), 25 states have call predecessors, (1508), 25 states have return successors, (1508), 1408 states have call predecessors, (1508), 1508 states have call successors, (1508) [2025-02-05 16:24:13,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1379 [2025-02-05 16:24:13,256 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 16:24:13,257 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 16:24:13,257 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 16:24:13,261 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 16:24:13,262 INFO L85 PathProgramCache]: Analyzing trace with hash 20013124, now seen corresponding path program 1 times [2025-02-05 16:24:13,267 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 16:24:13,267 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2083165752] [2025-02-05 16:24:13,268 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 16:24:13,268 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 16:24:15,049 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1378 statements into 1 equivalence classes. [2025-02-05 16:24:15,181 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1378 of 1378 statements. [2025-02-05 16:24:15,182 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 16:24:15,182 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 16:24:16,391 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 16:24:16,392 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 16:24:16,392 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2083165752] [2025-02-05 16:24:16,393 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2083165752] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-05 16:24:16,393 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1488346460] [2025-02-05 16:24:16,393 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 16:24:16,393 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-05 16:24:16,394 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-05 16:24:16,396 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 16:24:16,397 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 16:24:18,509 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1378 statements into 1 equivalence classes. [2025-02-05 16:24:19,074 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1378 of 1378 statements. [2025-02-05 16:24:19,074 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 16:24:19,074 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 16:24:19,099 INFO L256 TraceCheckSpWp]: Trace formula consists of 5933 conjuncts, 1 conjuncts are in the unsatisfiable core [2025-02-05 16:24:19,143 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-05 16:24:19,214 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 16:24:19,215 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-05 16:24:19,215 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1488346460] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 16:24:19,215 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-05 16:24:19,216 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2025-02-05 16:24:19,217 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1728920891] [2025-02-05 16:24:19,218 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 16:24:19,222 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-02-05 16:24:19,222 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 16:24:19,238 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-02-05 16:24:19,238 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-02-05 16:24:19,247 INFO L87 Difference]: Start difference. First operand has 3454 states, 1919 states have (on average 1.1756122980719124) internal successors, (2256), 2049 states have internal predecessors, (2256), 1508 states have call successors, (1508), 25 states have call predecessors, (1508), 25 states have return successors, (1508), 1408 states have call predecessors, (1508), 1508 states have call successors, (1508) 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 16:24:19,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 16:24:19,982 INFO L93 Difference]: Finished difference Result 6903 states and 12018 transitions. [2025-02-05 16:24:19,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-02-05 16:24:19,989 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 16:24:19,990 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 16:24:20,085 INFO L225 Difference]: With dead ends: 6903 [2025-02-05 16:24:20,090 INFO L226 Difference]: Without dead ends: 3449 [2025-02-05 16:24:20,210 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 16:24:20,212 INFO L435 NwaCegarLoop]: 5270 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, 5270 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 16:24:20,213 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 5270 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-05 16:24:20,247 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3449 states. [2025-02-05 16:24:21,442 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3449 to 3449. [2025-02-05 16:24:21,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3449 states, 1915 states have (on average 1.174934725848564) internal successors, (2250), 2045 states have internal predecessors, (2250), 1508 states have call successors, (1508), 25 states have call predecessors, (1508), 25 states have return successors, (1507), 1407 states have call predecessors, (1507), 1507 states have call successors, (1507) [2025-02-05 16:24:21,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3449 states to 3449 states and 5265 transitions. [2025-02-05 16:24:21,495 INFO L78 Accepts]: Start accepts. Automaton has 3449 states and 5265 transitions. Word has length 1378 [2025-02-05 16:24:21,496 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 16:24:21,496 INFO L471 AbstractCegarLoop]: Abstraction has 3449 states and 5265 transitions. [2025-02-05 16:24:21,497 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 16:24:21,497 INFO L276 IsEmpty]: Start isEmpty. Operand 3449 states and 5265 transitions. [2025-02-05 16:24:21,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1379 [2025-02-05 16:24:21,528 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 16:24:21,528 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 16:24:21,549 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 16:24:21,729 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 16:24:21,730 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 16:24:21,731 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 16:24:21,731 INFO L85 PathProgramCache]: Analyzing trace with hash -1290213920, now seen corresponding path program 1 times [2025-02-05 16:24:21,731 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 16:24:21,731 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [281916084] [2025-02-05 16:24:21,732 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 16:24:21,732 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 16:24:23,215 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1378 statements into 1 equivalence classes. [2025-02-05 16:24:23,773 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1378 of 1378 statements. [2025-02-05 16:24:23,775 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 16:24:23,776 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 16:24:25,561 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 16:24:25,565 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 16:24:25,565 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [281916084] [2025-02-05 16:24:25,568 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [281916084] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-05 16:24:25,568 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [266934825] [2025-02-05 16:24:25,569 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 16:24:25,569 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-05 16:24:25,569 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-05 16:24:25,571 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 16:24:25,575 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 16:24:28,184 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1378 statements into 1 equivalence classes. [2025-02-05 16:24:28,719 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1378 of 1378 statements. [2025-02-05 16:24:28,719 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 16:24:28,719 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 16:24:28,742 INFO L256 TraceCheckSpWp]: Trace formula consists of 5933 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-02-05 16:24:28,757 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-05 16:24:28,804 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 16:24:28,805 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-05 16:24:28,805 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [266934825] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 16:24:28,805 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-05 16:24:28,805 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 4 [2025-02-05 16:24:28,805 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [706737033] [2025-02-05 16:24:28,805 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 16:24:28,807 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-05 16:24:28,810 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 16:24:28,812 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-05 16:24:28,812 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-05 16:24:28,813 INFO L87 Difference]: Start difference. First operand 3449 states and 5265 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 16:24:36,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 16:24:36,981 INFO L93 Difference]: Finished difference Result 6893 states and 10553 transitions. [2025-02-05 16:24:36,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-05 16:24:36,982 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 16:24:36,985 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 16:24:37,026 INFO L225 Difference]: With dead ends: 6893 [2025-02-05 16:24:37,026 INFO L226 Difference]: Without dead ends: 3447 [2025-02-05 16:24:37,068 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 16:24:37,070 INFO L435 NwaCegarLoop]: 3897 mSDtfsCounter, 1 mSDsluCounter, 5061 mSDsCounter, 0 mSdLazyCounter, 6822 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 8958 SdHoareTripleChecker+Invalid, 6826 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 6822 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.7s IncrementalHoareTripleChecker+Time [2025-02-05 16:24:37,070 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 8958 Invalid, 6826 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4 Valid, 6822 Invalid, 0 Unknown, 0 Unchecked, 7.7s Time] [2025-02-05 16:24:37,076 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3447 states. [2025-02-05 16:24:38,001 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3447 to 3445. [2025-02-05 16:24:38,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3445 states, 1913 states have (on average 1.1740721380031365) internal successors, (2246), 2043 states have internal predecessors, (2246), 1506 states have call successors, (1506), 25 states have call predecessors, (1506), 25 states have return successors, (1505), 1405 states have call predecessors, (1505), 1505 states have call successors, (1505) [2025-02-05 16:24:38,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3445 states to 3445 states and 5257 transitions. [2025-02-05 16:24:38,030 INFO L78 Accepts]: Start accepts. Automaton has 3445 states and 5257 transitions. Word has length 1378 [2025-02-05 16:24:38,033 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 16:24:38,036 INFO L471 AbstractCegarLoop]: Abstraction has 3445 states and 5257 transitions. [2025-02-05 16:24:38,037 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 16:24:38,037 INFO L276 IsEmpty]: Start isEmpty. Operand 3445 states and 5257 transitions. [2025-02-05 16:24:38,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1416 [2025-02-05 16:24:38,066 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 16:24:38,067 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 16:24:38,107 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2025-02-05 16:24:38,268 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 16:24:38,268 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 16:24:38,269 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 16:24:38,269 INFO L85 PathProgramCache]: Analyzing trace with hash -54455656, now seen corresponding path program 1 times [2025-02-05 16:24:38,269 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 16:24:38,269 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1257809603] [2025-02-05 16:24:38,270 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 16:24:38,270 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 16:24:39,768 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1415 statements into 1 equivalence classes. [2025-02-05 16:24:39,964 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1415 of 1415 statements. [2025-02-05 16:24:39,964 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 16:24:39,964 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 16:24:40,485 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 16:24:40,486 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 16:24:40,486 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1257809603] [2025-02-05 16:24:40,486 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1257809603] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 16:24:40,486 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-05 16:24:40,486 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-05 16:24:40,487 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1060282228] [2025-02-05 16:24:40,487 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 16:24:40,490 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-05 16:24:40,490 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 16:24:40,490 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-05 16:24:40,491 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-05 16:24:40,495 INFO L87 Difference]: Start difference. First operand 3445 states and 5257 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 16:24:40,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 16:24:40,613 INFO L93 Difference]: Finished difference Result 6885 states and 10535 transitions. [2025-02-05 16:24:40,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-05 16:24:40,614 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 16:24:40,616 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 16:24:40,648 INFO L225 Difference]: With dead ends: 6885 [2025-02-05 16:24:40,649 INFO L226 Difference]: Without dead ends: 3445 [2025-02-05 16:24:40,668 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 16:24:40,669 INFO L435 NwaCegarLoop]: 5255 mSDtfsCounter, 0 mSDsluCounter, 5245 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 10500 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 16:24:40,670 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 10500 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-05 16:24:40,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3445 states. [2025-02-05 16:24:41,460 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3445 to 3445. [2025-02-05 16:24:41,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3445 states, 1913 states have (on average 1.173549398849974) internal successors, (2245), 2043 states have internal predecessors, (2245), 1506 states have call successors, (1506), 25 states have call predecessors, (1506), 25 states have return successors, (1505), 1405 states have call predecessors, (1505), 1505 states have call successors, (1505) [2025-02-05 16:24:41,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3445 states to 3445 states and 5256 transitions. [2025-02-05 16:24:41,497 INFO L78 Accepts]: Start accepts. Automaton has 3445 states and 5256 transitions. Word has length 1415 [2025-02-05 16:24:41,499 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 16:24:41,501 INFO L471 AbstractCegarLoop]: Abstraction has 3445 states and 5256 transitions. [2025-02-05 16:24:41,501 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 16:24:41,501 INFO L276 IsEmpty]: Start isEmpty. Operand 3445 states and 5256 transitions. [2025-02-05 16:24:41,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1424 [2025-02-05 16:24:41,521 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 16:24:41,522 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 16:24:41,522 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-02-05 16:24:41,522 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 16:24:41,523 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 16:24:41,523 INFO L85 PathProgramCache]: Analyzing trace with hash 71419223, now seen corresponding path program 1 times [2025-02-05 16:24:41,523 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 16:24:41,523 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [273776186] [2025-02-05 16:24:41,523 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 16:24:41,523 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 16:24:43,133 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1423 statements into 1 equivalence classes. [2025-02-05 16:24:43,413 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1423 of 1423 statements. [2025-02-05 16:24:43,413 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 16:24:43,413 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 16:24:46,122 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 16:24:46,122 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 16:24:46,123 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [273776186] [2025-02-05 16:24:46,123 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [273776186] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 16:24:46,123 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-05 16:24:46,123 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-05 16:24:46,123 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [508874075] [2025-02-05 16:24:46,123 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 16:24:46,124 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-05 16:24:46,124 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 16:24:46,125 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-05 16:24:46,125 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-02-05 16:24:46,128 INFO L87 Difference]: Start difference. First operand 3445 states and 5256 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 16:24:52,881 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 16:24:52,881 INFO L93 Difference]: Finished difference Result 7898 states and 12058 transitions. [2025-02-05 16:24:52,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-05 16:24:52,883 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 16:24:52,888 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 16:24:52,960 INFO L225 Difference]: With dead ends: 7898 [2025-02-05 16:24:52,960 INFO L226 Difference]: Without dead ends: 4458 [2025-02-05 16:24:52,977 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 16:24:52,977 INFO L435 NwaCegarLoop]: 6709 mSDtfsCounter, 6747 mSDsluCounter, 4528 mSDsCounter, 0 mSdLazyCounter, 6047 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6747 SdHoareTripleChecker+Valid, 11237 SdHoareTripleChecker+Invalid, 6075 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 6047 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.4s IncrementalHoareTripleChecker+Time [2025-02-05 16:24:52,978 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [6747 Valid, 11237 Invalid, 6075 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [28 Valid, 6047 Invalid, 0 Unknown, 0 Unchecked, 6.4s Time] [2025-02-05 16:24:52,985 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4458 states. [2025-02-05 16:24:53,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4458 to 4455. [2025-02-05 16:24:53,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4455 states, 2551 states have (on average 1.1920815366522932) internal successors, (3041), 2681 states have internal predecessors, (3041), 1868 states have call successors, (1868), 36 states have call predecessors, (1868), 35 states have return successors, (1867), 1766 states have call predecessors, (1867), 1867 states have call successors, (1867) [2025-02-05 16:24:53,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4455 states to 4455 states and 6776 transitions. [2025-02-05 16:24:53,873 INFO L78 Accepts]: Start accepts. Automaton has 4455 states and 6776 transitions. Word has length 1423 [2025-02-05 16:24:53,875 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 16:24:53,875 INFO L471 AbstractCegarLoop]: Abstraction has 4455 states and 6776 transitions. [2025-02-05 16:24:53,875 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 16:24:53,875 INFO L276 IsEmpty]: Start isEmpty. Operand 4455 states and 6776 transitions. [2025-02-05 16:24:53,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1428 [2025-02-05 16:24:53,891 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 16:24:53,892 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 16:24:53,892 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-02-05 16:24:53,892 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 16:24:53,892 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 16:24:53,893 INFO L85 PathProgramCache]: Analyzing trace with hash 413938304, now seen corresponding path program 1 times [2025-02-05 16:24:53,893 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 16:24:53,893 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [331952173] [2025-02-05 16:24:53,893 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 16:24:53,893 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 16:24:55,097 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1427 statements into 1 equivalence classes. [2025-02-05 16:24:55,233 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1427 of 1427 statements. [2025-02-05 16:24:55,233 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 16:24:55,233 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 16:24:56,304 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 16:24:56,305 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 16:24:56,305 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [331952173] [2025-02-05 16:24:56,305 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [331952173] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-05 16:24:56,305 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2007438780] [2025-02-05 16:24:56,306 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 16:24:56,306 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-05 16:24:56,307 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-05 16:24:56,309 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 16:24:56,314 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 16:24:58,309 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1427 statements into 1 equivalence classes. [2025-02-05 16:24:58,872 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1427 of 1427 statements. [2025-02-05 16:24:58,872 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 16:24:58,872 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 16:24:58,903 INFO L256 TraceCheckSpWp]: Trace formula consists of 6110 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-02-05 16:24:58,927 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-05 16:24:59,038 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 16:24:59,039 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-05 16:24:59,039 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2007438780] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 16:24:59,039 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-05 16:24:59,039 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [6] total 8 [2025-02-05 16:24:59,039 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [188303840] [2025-02-05 16:24:59,039 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 16:24:59,040 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-05 16:24:59,040 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 16:24:59,041 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-05 16:24:59,041 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2025-02-05 16:24:59,042 INFO L87 Difference]: Start difference. First operand 4455 states and 6776 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 16:25:07,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 16:25:07,480 INFO L93 Difference]: Finished difference Result 11395 states and 17371 transitions. [2025-02-05 16:25:07,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-05 16:25:07,481 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 16:25:07,483 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 16:25:07,556 INFO L225 Difference]: With dead ends: 11395 [2025-02-05 16:25:07,556 INFO L226 Difference]: Without dead ends: 7650 [2025-02-05 16:25:07,587 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 1432 GetRequests, 1426 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2025-02-05 16:25:07,589 INFO L435 NwaCegarLoop]: 7614 mSDtfsCounter, 5161 mSDsluCounter, 11167 mSDsCounter, 0 mSdLazyCounter, 6291 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5161 SdHoareTripleChecker+Valid, 18781 SdHoareTripleChecker+Invalid, 6293 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 6291 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.0s IncrementalHoareTripleChecker+Time [2025-02-05 16:25:07,589 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5161 Valid, 18781 Invalid, 6293 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 6291 Invalid, 0 Unknown, 0 Unchecked, 8.0s Time] [2025-02-05 16:25:07,600 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7650 states. [2025-02-05 16:25:09,782 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7650 to 7620. [2025-02-05 16:25:09,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7620 states, 4371 states have (on average 1.1935483870967742) internal successors, (5217), 4604 states have internal predecessors, (5217), 3182 states have call successors, (3182), 63 states have call predecessors, (3182), 66 states have return successors, (3213), 3007 states have call predecessors, (3213), 3180 states have call successors, (3213) [2025-02-05 16:25:09,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7620 states to 7620 states and 11612 transitions. [2025-02-05 16:25:09,851 INFO L78 Accepts]: Start accepts. Automaton has 7620 states and 11612 transitions. Word has length 1427 [2025-02-05 16:25:09,852 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 16:25:09,852 INFO L471 AbstractCegarLoop]: Abstraction has 7620 states and 11612 transitions. [2025-02-05 16:25:09,852 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 16:25:09,853 INFO L276 IsEmpty]: Start isEmpty. Operand 7620 states and 11612 transitions. [2025-02-05 16:25:09,870 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1429 [2025-02-05 16:25:09,871 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 16:25:09,871 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 16:25:09,892 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2025-02-05 16:25:10,072 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 16:25:10,073 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 16:25:10,073 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 16:25:10,074 INFO L85 PathProgramCache]: Analyzing trace with hash 482367535, now seen corresponding path program 1 times [2025-02-05 16:25:10,074 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 16:25:10,074 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [787335102] [2025-02-05 16:25:10,074 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 16:25:10,074 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 16:25:11,574 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1428 statements into 1 equivalence classes. [2025-02-05 16:25:11,693 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1428 of 1428 statements. [2025-02-05 16:25:11,693 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 16:25:11,693 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 16:25:12,888 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 16:25:12,889 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 16:25:12,889 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [787335102] [2025-02-05 16:25:12,889 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [787335102] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-05 16:25:12,889 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [522894004] [2025-02-05 16:25:12,889 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 16:25:12,889 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-05 16:25:12,890 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-05 16:25:12,891 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 16:25:12,893 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2025-02-05 16:25:14,864 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1428 statements into 1 equivalence classes.