./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/seq-mthreaded/rekh_nxt.3.M4.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 551b0097 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/seq-mthreaded/rekh_nxt.3.M4.c -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 5816b6ee4c54982d6c4f363e51f69070026ee50b2ef95cedbe859f62dcbecd24 --- Real Ultimate output --- This is Ultimate 0.3.0-?-551b009-m [2025-01-09 04:34:43,596 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-01-09 04:34:43,658 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2025-01-09 04:34:43,665 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-01-09 04:34:43,665 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-01-09 04:34:43,693 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-01-09 04:34:43,695 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-01-09 04:34:43,695 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-01-09 04:34:43,695 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-01-09 04:34:43,695 INFO L153 SettingsManager]: * Use memory slicer=true [2025-01-09 04:34:43,696 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-01-09 04:34:43,696 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-01-09 04:34:43,697 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-01-09 04:34:43,697 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-01-09 04:34:43,697 INFO L153 SettingsManager]: * Use SBE=true [2025-01-09 04:34:43,697 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-01-09 04:34:43,697 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-01-09 04:34:43,697 INFO L153 SettingsManager]: * sizeof long=4 [2025-01-09 04:34:43,697 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-01-09 04:34:43,697 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-01-09 04:34:43,697 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-01-09 04:34:43,698 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-01-09 04:34:43,698 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-01-09 04:34:43,698 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-01-09 04:34:43,698 INFO L153 SettingsManager]: * sizeof long double=12 [2025-01-09 04:34:43,698 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-01-09 04:34:43,698 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-01-09 04:34:43,698 INFO L153 SettingsManager]: * Use constant arrays=true [2025-01-09 04:34:43,698 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-01-09 04:34:43,699 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 04:34:43,699 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-09 04:34:43,699 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 04:34:43,699 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 04:34:43,699 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-01-09 04:34:43,699 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 04:34:43,699 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-09 04:34:43,700 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 04:34:43,700 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 04:34:43,700 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-01-09 04:34:43,700 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-01-09 04:34:43,700 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-01-09 04:34:43,700 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-01-09 04:34:43,700 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-01-09 04:34:43,700 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-01-09 04:34:43,700 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-01-09 04:34:43,700 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-01-09 04:34:43,700 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-01-09 04:34:43,700 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-01-09 04:34:43,700 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 -> 5816b6ee4c54982d6c4f363e51f69070026ee50b2ef95cedbe859f62dcbecd24 [2025-01-09 04:34:43,941 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-01-09 04:34:43,947 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-01-09 04:34:43,948 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-01-09 04:34:43,949 INFO L270 PluginConnector]: Initializing CDTParser... [2025-01-09 04:34:43,949 INFO L274 PluginConnector]: CDTParser initialized [2025-01-09 04:34:43,950 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded/rekh_nxt.3.M4.c [2025-01-09 04:34:45,134 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/c9fdab22d/f57c7b133fcf436da33c34023ff1f639/FLAGd150b568c [2025-01-09 04:34:45,476 INFO L384 CDTParser]: Found 1 translation units. [2025-01-09 04:34:45,478 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/rekh_nxt.3.M4.c [2025-01-09 04:34:45,502 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/c9fdab22d/f57c7b133fcf436da33c34023ff1f639/FLAGd150b568c [2025-01-09 04:34:45,518 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/c9fdab22d/f57c7b133fcf436da33c34023ff1f639 [2025-01-09 04:34:45,520 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-01-09 04:34:45,521 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-01-09 04:34:45,523 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-01-09 04:34:45,523 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-01-09 04:34:45,527 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-01-09 04:34:45,528 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 04:34:45" (1/1) ... [2025-01-09 04:34:45,528 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2ccf3e2d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 04:34:45, skipping insertion in model container [2025-01-09 04:34:45,528 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 04:34:45" (1/1) ... [2025-01-09 04:34:45,572 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-01-09 04:34:45,690 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_nxt.3.M4.c[1762,1775] [2025-01-09 04:34:45,955 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 04:34:45,969 INFO L200 MainTranslator]: Completed pre-run [2025-01-09 04:34:45,975 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"/tmp/aaaa/nxt.ok3.i","-S") [42] [2025-01-09 04:34:45,980 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_nxt.3.M4.c[1762,1775] [2025-01-09 04:34:46,161 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 04:34:46,188 INFO L204 MainTranslator]: Completed translation [2025-01-09 04:34:46,190 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 04:34:46 WrapperNode [2025-01-09 04:34:46,191 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-01-09 04:34:46,192 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-01-09 04:34:46,192 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-01-09 04:34:46,192 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-01-09 04:34:46,196 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 04:34:46" (1/1) ... [2025-01-09 04:34:46,236 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 04:34:46" (1/1) ... [2025-01-09 04:34:46,412 INFO L138 Inliner]: procedures = 60, calls = 2813, calls flagged for inlining = 21, calls inlined = 21, statements flattened = 6102 [2025-01-09 04:34:46,413 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-01-09 04:34:46,413 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-01-09 04:34:46,414 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-01-09 04:34:46,414 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-01-09 04:34:46,420 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 04:34:46" (1/1) ... [2025-01-09 04:34:46,421 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 04:34:46" (1/1) ... [2025-01-09 04:34:46,446 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 04:34:46" (1/1) ... [2025-01-09 04:34:46,506 INFO L175 MemorySlicer]: Split 1988 memory accesses to 17 slices as follows [2, 2, 277, 285, 113, 113, 186, 203, 186, 8, 203, 186, 203, 2, 4, 8, 7]. 14 percent of accesses are in the largest equivalence class. The 274 initializations are split as follows [0, 2, 27, 27, 27, 27, 27, 27, 27, 0, 27, 27, 27, 0, 0, 0, 2]. The 292 writes are split as follows [1, 0, 27, 27, 27, 27, 31, 26, 31, 4, 26, 31, 26, 1, 0, 4, 3]. [2025-01-09 04:34:46,507 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 04:34:46" (1/1) ... [2025-01-09 04:34:46,507 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 04:34:46" (1/1) ... [2025-01-09 04:34:46,631 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 04:34:46" (1/1) ... [2025-01-09 04:34:46,647 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 04:34:46" (1/1) ... [2025-01-09 04:34:46,660 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 04:34:46" (1/1) ... [2025-01-09 04:34:46,680 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 04:34:46" (1/1) ... [2025-01-09 04:34:46,698 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 04:34:46" (1/1) ... [2025-01-09 04:34:46,736 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-01-09 04:34:46,738 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-01-09 04:34:46,738 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-01-09 04:34:46,738 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-01-09 04:34:46,739 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 04:34:46" (1/1) ... [2025-01-09 04:34:46,742 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 04:34:46,751 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 04:34:46,763 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-01-09 04:34:46,767 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-01-09 04:34:46,782 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-01-09 04:34:46,783 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t2 [2025-01-09 04:34:46,783 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t2 [2025-01-09 04:34:46,783 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_nxtway_gs_mode [2025-01-09 04:34:46,783 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_nxtway_gs_mode [2025-01-09 04:34:46,783 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-01-09 04:34:46,783 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t0 [2025-01-09 04:34:46,783 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t0 [2025-01-09 04:34:46,783 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t1 [2025-01-09 04:34:46,783 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t1 [2025-01-09 04:34:46,783 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_observer_obstacle_flag [2025-01-09 04:34:46,783 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_observer_obstacle_flag [2025-01-09 04:34:46,784 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_obstacle_flag [2025-01-09 04:34:46,784 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_obstacle_flag [2025-01-09 04:34:46,784 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-01-09 04:34:46,784 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-01-09 04:34:46,784 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2025-01-09 04:34:46,785 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2025-01-09 04:34:46,785 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2025-01-09 04:34:46,785 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2025-01-09 04:34:46,785 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2025-01-09 04:34:46,785 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2025-01-09 04:34:46,785 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#8 [2025-01-09 04:34:46,785 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#9 [2025-01-09 04:34:46,785 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#10 [2025-01-09 04:34:46,785 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#11 [2025-01-09 04:34:46,785 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#12 [2025-01-09 04:34:46,785 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#13 [2025-01-09 04:34:46,785 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#14 [2025-01-09 04:34:46,786 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#15 [2025-01-09 04:34:46,786 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#16 [2025-01-09 04:34:46,786 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_count [2025-01-09 04:34:46,786 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_count [2025-01-09 04:34:46,786 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_gyro_sensor [2025-01-09 04:34:46,786 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_gyro_sensor [2025-01-09 04:34:46,786 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts1 [2025-01-09 04:34:46,786 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts1 [2025-01-09 04:34:46,786 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts2 [2025-01-09 04:34:46,786 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts2 [2025-01-09 04:34:46,786 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-01-09 04:34:46,786 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_hyperperiod [2025-01-09 04:34:46,786 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_hyperperiod [2025-01-09 04:34:46,786 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_Background [2025-01-09 04:34:46,786 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_Background [2025-01-09 04:34:46,786 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-01-09 04:34:46,786 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-01-09 04:34:46,786 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2025-01-09 04:34:46,786 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2025-01-09 04:34:46,786 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2025-01-09 04:34:46,786 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2025-01-09 04:34:46,786 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2025-01-09 04:34:46,786 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2025-01-09 04:34:46,786 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#8 [2025-01-09 04:34:46,786 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#9 [2025-01-09 04:34:46,786 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#10 [2025-01-09 04:34:46,786 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#11 [2025-01-09 04:34:46,786 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#12 [2025-01-09 04:34:46,786 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#13 [2025-01-09 04:34:46,786 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#14 [2025-01-09 04:34:46,786 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#15 [2025-01-09 04:34:46,786 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#16 [2025-01-09 04:34:46,786 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2025-01-09 04:34:46,786 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2025-01-09 04:34:46,786 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_speed [2025-01-09 04:34:46,787 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_speed [2025-01-09 04:34:46,787 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_obstacle_flag [2025-01-09 04:34:46,787 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_obstacle_flag [2025-01-09 04:34:46,787 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2025-01-09 04:34:46,787 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2025-01-09 04:34:46,787 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-01-09 04:34:46,787 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-01-09 04:34:46,787 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-01-09 04:34:46,787 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2025-01-09 04:34:46,787 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2025-01-09 04:34:46,787 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2025-01-09 04:34:46,787 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2025-01-09 04:34:46,787 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2025-01-09 04:34:46,787 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2025-01-09 04:34:46,787 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2025-01-09 04:34:46,787 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#10 [2025-01-09 04:34:46,787 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#11 [2025-01-09 04:34:46,787 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#12 [2025-01-09 04:34:46,787 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#13 [2025-01-09 04:34:46,787 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#14 [2025-01-09 04:34:46,787 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#15 [2025-01-09 04:34:46,787 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#16 [2025-01-09 04:34:46,787 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-01-09 04:34:46,787 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-01-09 04:34:46,787 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_systick_ms [2025-01-09 04:34:46,787 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_systick_ms [2025-01-09 04:34:46,787 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_get_count [2025-01-09 04:34:46,787 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_get_count [2025-01-09 04:34:46,788 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_nxtway_gs_mode [2025-01-09 04:34:46,788 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtway_gs_mode [2025-01-09 04:34:47,147 INFO L234 CfgBuilder]: Building ICFG [2025-01-09 04:34:47,148 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-01-09 04:34:55,102 INFO L? ?]: Removed 377 outVars from TransFormulas that were not future-live. [2025-01-09 04:34:55,103 INFO L283 CfgBuilder]: Performing block encoding [2025-01-09 04:34:55,137 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-01-09 04:34:55,137 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2025-01-09 04:34:55,138 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 04:34:55 BoogieIcfgContainer [2025-01-09 04:34:55,138 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-01-09 04:34:55,139 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-01-09 04:34:55,139 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-01-09 04:34:55,143 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-01-09 04:34:55,143 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.01 04:34:45" (1/3) ... [2025-01-09 04:34:55,144 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8537bd6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 04:34:55, skipping insertion in model container [2025-01-09 04:34:55,144 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 04:34:46" (2/3) ... [2025-01-09 04:34:55,144 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8537bd6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 04:34:55, skipping insertion in model container [2025-01-09 04:34:55,144 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 04:34:55" (3/3) ... [2025-01-09 04:34:55,145 INFO L128 eAbstractionObserver]: Analyzing ICFG rekh_nxt.3.M4.c [2025-01-09 04:34:55,156 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-01-09 04:34:55,159 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG rekh_nxt.3.M4.c that has 20 procedures, 1819 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2025-01-09 04:34:55,240 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-01-09 04:34:55,250 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;@3321b13e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-01-09 04:34:55,250 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-01-09 04:34:55,265 INFO L276 IsEmpty]: Start isEmpty. Operand has 1819 states, 1024 states have (on average 1.2265625) internal successors, (1256), 1152 states have internal predecessors, (1256), 774 states have call successors, (774), 19 states have call predecessors, (774), 19 states have return successors, (774), 675 states have call predecessors, (774), 774 states have call successors, (774) [2025-01-09 04:34:55,339 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1311 [2025-01-09 04:34:55,339 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 04:34:55,340 INFO L218 NwaCegarLoop]: trace histogram [209, 209, 209, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 04:34:55,341 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 04:34:55,345 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 04:34:55,346 INFO L85 PathProgramCache]: Analyzing trace with hash -431190571, now seen corresponding path program 1 times [2025-01-09 04:34:55,351 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 04:34:55,351 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [404556910] [2025-01-09 04:34:55,352 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 04:34:55,352 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 04:34:55,996 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1310 statements into 1 equivalence classes. [2025-01-09 04:34:56,549 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1310 of 1310 statements. [2025-01-09 04:34:56,550 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 04:34:56,550 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 04:34:57,856 INFO L134 CoverageAnalysis]: Checked inductivity of 86944 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 86944 trivial. 0 not checked. [2025-01-09 04:34:57,857 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 04:34:57,858 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [404556910] [2025-01-09 04:34:57,858 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [404556910] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 04:34:57,858 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 04:34:57,859 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-01-09 04:34:57,860 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1836095049] [2025-01-09 04:34:57,860 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 04:34:57,865 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-09 04:34:57,867 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 04:34:57,887 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-09 04:34:57,887 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-09 04:34:57,893 INFO L87 Difference]: Start difference. First operand has 1819 states, 1024 states have (on average 1.2265625) internal successors, (1256), 1152 states have internal predecessors, (1256), 774 states have call successors, (774), 19 states have call predecessors, (774), 19 states have return successors, (774), 675 states have call predecessors, (774), 774 states have call successors, (774) Second operand has 3 states, 3 states have (on average 87.33333333333333) internal successors, (262), 3 states have internal predecessors, (262), 2 states have call successors, (213), 2 states have call predecessors, (213), 2 states have return successors, (211), 2 states have call predecessors, (211), 2 states have call successors, (211) [2025-01-09 04:34:58,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 04:34:58,208 INFO L93 Difference]: Finished difference Result 3633 states and 6358 transitions. [2025-01-09 04:34:58,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-09 04:34:58,210 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 87.33333333333333) internal successors, (262), 3 states have internal predecessors, (262), 2 states have call successors, (213), 2 states have call predecessors, (213), 2 states have return successors, (211), 2 states have call predecessors, (211), 2 states have call successors, (211) Word has length 1310 [2025-01-09 04:34:58,213 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 04:34:58,244 INFO L225 Difference]: With dead ends: 3633 [2025-01-09 04:34:58,245 INFO L226 Difference]: Without dead ends: 1814 [2025-01-09 04:34:58,273 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 [2025-01-09 04:34:58,275 INFO L435 NwaCegarLoop]: 2800 mSDtfsCounter, 0 mSDsluCounter, 2790 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 5590 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 [2025-01-09 04:34:58,276 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 5590 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 04:34:58,290 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1814 states. [2025-01-09 04:34:58,717 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1814 to 1814. [2025-01-09 04:34:58,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1814 states, 1020 states have (on average 1.2245098039215687) internal successors, (1249), 1148 states have internal predecessors, (1249), 774 states have call successors, (774), 19 states have call predecessors, (774), 19 states have return successors, (773), 674 states have call predecessors, (773), 773 states have call successors, (773) [2025-01-09 04:34:58,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1814 states to 1814 states and 2796 transitions. [2025-01-09 04:34:58,760 INFO L78 Accepts]: Start accepts. Automaton has 1814 states and 2796 transitions. Word has length 1310 [2025-01-09 04:34:58,764 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 04:34:58,765 INFO L471 AbstractCegarLoop]: Abstraction has 1814 states and 2796 transitions. [2025-01-09 04:34:58,765 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 87.33333333333333) internal successors, (262), 3 states have internal predecessors, (262), 2 states have call successors, (213), 2 states have call predecessors, (213), 2 states have return successors, (211), 2 states have call predecessors, (211), 2 states have call successors, (211) [2025-01-09 04:34:58,765 INFO L276 IsEmpty]: Start isEmpty. Operand 1814 states and 2796 transitions. [2025-01-09 04:34:58,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1319 [2025-01-09 04:34:58,807 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 04:34:58,808 INFO L218 NwaCegarLoop]: trace histogram [209, 209, 209, 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] [2025-01-09 04:34:58,808 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-01-09 04:34:58,808 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 04:34:58,810 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 04:34:58,811 INFO L85 PathProgramCache]: Analyzing trace with hash 1995859929, now seen corresponding path program 1 times [2025-01-09 04:34:58,811 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 04:34:58,812 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [361346296] [2025-01-09 04:34:58,812 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 04:34:58,812 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 04:34:59,298 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1318 statements into 1 equivalence classes. [2025-01-09 04:34:59,519 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1318 of 1318 statements. [2025-01-09 04:34:59,520 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 04:34:59,520 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 04:35:02,799 INFO L134 CoverageAnalysis]: Checked inductivity of 86947 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 86947 trivial. 0 not checked. [2025-01-09 04:35:02,800 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 04:35:02,800 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [361346296] [2025-01-09 04:35:02,800 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [361346296] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 04:35:02,800 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 04:35:02,800 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-01-09 04:35:02,800 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [635414832] [2025-01-09 04:35:02,800 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 04:35:02,802 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-01-09 04:35:02,803 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 04:35:02,803 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-01-09 04:35:02,803 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-01-09 04:35:02,804 INFO L87 Difference]: Start difference. First operand 1814 states and 2796 transitions. Second operand has 5 states, 4 states have (on average 66.0) internal successors, (264), 5 states have internal predecessors, (264), 4 states have call successors, (215), 2 states have call predecessors, (215), 2 states have return successors, (213), 3 states have call predecessors, (213), 4 states have call successors, (213) [2025-01-09 04:35:07,721 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 04:35:07,721 INFO L93 Difference]: Finished difference Result 4334 states and 6675 transitions. [2025-01-09 04:35:07,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-09 04:35:07,722 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 66.0) internal successors, (264), 5 states have internal predecessors, (264), 4 states have call successors, (215), 2 states have call predecessors, (215), 2 states have return successors, (213), 3 states have call predecessors, (213), 4 states have call successors, (213) Word has length 1318 [2025-01-09 04:35:07,724 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 04:35:07,748 INFO L225 Difference]: With dead ends: 4334 [2025-01-09 04:35:07,748 INFO L226 Difference]: Without dead ends: 2525 [2025-01-09 04:35:07,765 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 [2025-01-09 04:35:07,766 INFO L435 NwaCegarLoop]: 3831 mSDtfsCounter, 3824 mSDsluCounter, 2636 mSDsCounter, 0 mSdLazyCounter, 3419 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3824 SdHoareTripleChecker+Valid, 6467 SdHoareTripleChecker+Invalid, 3447 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 3419 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2025-01-09 04:35:07,766 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3824 Valid, 6467 Invalid, 3447 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [28 Valid, 3419 Invalid, 0 Unknown, 0 Unchecked, 4.5s Time] [2025-01-09 04:35:07,772 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2525 states. [2025-01-09 04:35:08,128 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2525 to 2522. [2025-01-09 04:35:08,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2522 states, 1444 states have (on average 1.2105263157894737) internal successors, (1748), 1572 states have internal predecessors, (1748), 1053 states have call successors, (1053), 25 states have call predecessors, (1053), 24 states have return successors, (1052), 952 states have call predecessors, (1052), 1052 states have call successors, (1052) [2025-01-09 04:35:08,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2522 states to 2522 states and 3853 transitions. [2025-01-09 04:35:08,151 INFO L78 Accepts]: Start accepts. Automaton has 2522 states and 3853 transitions. Word has length 1318 [2025-01-09 04:35:08,153 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 04:35:08,154 INFO L471 AbstractCegarLoop]: Abstraction has 2522 states and 3853 transitions. [2025-01-09 04:35:08,154 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 66.0) internal successors, (264), 5 states have internal predecessors, (264), 4 states have call successors, (215), 2 states have call predecessors, (215), 2 states have return successors, (213), 3 states have call predecessors, (213), 4 states have call successors, (213) [2025-01-09 04:35:08,154 INFO L276 IsEmpty]: Start isEmpty. Operand 2522 states and 3853 transitions. [2025-01-09 04:35:08,167 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1323 [2025-01-09 04:35:08,167 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 04:35:08,169 INFO L218 NwaCegarLoop]: trace histogram [209, 209, 209, 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] [2025-01-09 04:35:08,170 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-01-09 04:35:08,170 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 04:35:08,171 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 04:35:08,172 INFO L85 PathProgramCache]: Analyzing trace with hash -2126799921, now seen corresponding path program 1 times [2025-01-09 04:35:08,172 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 04:35:08,172 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1639693328] [2025-01-09 04:35:08,172 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 04:35:08,172 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 04:35:08,597 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1322 statements into 1 equivalence classes. [2025-01-09 04:35:08,825 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1322 of 1322 statements. [2025-01-09 04:35:08,826 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 04:35:08,826 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 04:35:10,116 INFO L134 CoverageAnalysis]: Checked inductivity of 86947 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 86947 trivial. 0 not checked. [2025-01-09 04:35:10,117 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 04:35:10,117 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1639693328] [2025-01-09 04:35:10,117 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1639693328] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 04:35:10,117 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 04:35:10,117 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-01-09 04:35:10,117 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1369008382] [2025-01-09 04:35:10,117 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 04:35:10,119 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-01-09 04:35:10,119 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 04:35:10,120 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-01-09 04:35:10,120 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-01-09 04:35:10,121 INFO L87 Difference]: Start difference. First operand 2522 states and 3853 transitions. Second operand has 5 states, 4 states have (on average 66.5) internal successors, (266), 5 states have internal predecessors, (266), 4 states have call successors, (216), 2 states have call predecessors, (216), 2 states have return successors, (214), 3 states have call predecessors, (214), 4 states have call successors, (214) [2025-01-09 04:35:13,951 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 04:35:13,952 INFO L93 Difference]: Finished difference Result 4570 states and 7021 transitions. [2025-01-09 04:35:13,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-09 04:35:13,953 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 66.5) internal successors, (266), 5 states have internal predecessors, (266), 4 states have call successors, (216), 2 states have call predecessors, (216), 2 states have return successors, (214), 3 states have call predecessors, (214), 4 states have call successors, (214) Word has length 1322 [2025-01-09 04:35:13,955 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 04:35:13,980 INFO L225 Difference]: With dead ends: 4570 [2025-01-09 04:35:13,980 INFO L226 Difference]: Without dead ends: 2521 [2025-01-09 04:35:13,995 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2025-01-09 04:35:13,997 INFO L435 NwaCegarLoop]: 3824 mSDtfsCounter, 4573 mSDsluCounter, 1692 mSDsCounter, 0 mSdLazyCounter, 2180 mSolverCounterSat, 946 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4573 SdHoareTripleChecker+Valid, 5516 SdHoareTripleChecker+Invalid, 3126 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 946 IncrementalHoareTripleChecker+Valid, 2180 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2025-01-09 04:35:13,998 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4573 Valid, 5516 Invalid, 3126 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [946 Valid, 2180 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2025-01-09 04:35:14,003 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2521 states. [2025-01-09 04:35:14,297 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2521 to 2518. [2025-01-09 04:35:14,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2518 states, 1442 states have (on average 1.2094313453536754) internal successors, (1744), 1570 states have internal predecessors, (1744), 1051 states have call successors, (1051), 25 states have call predecessors, (1051), 24 states have return successors, (1050), 950 states have call predecessors, (1050), 1050 states have call successors, (1050) [2025-01-09 04:35:14,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2518 states to 2518 states and 3845 transitions. [2025-01-09 04:35:14,316 INFO L78 Accepts]: Start accepts. Automaton has 2518 states and 3845 transitions. Word has length 1322 [2025-01-09 04:35:14,319 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 04:35:14,319 INFO L471 AbstractCegarLoop]: Abstraction has 2518 states and 3845 transitions. [2025-01-09 04:35:14,319 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 66.5) internal successors, (266), 5 states have internal predecessors, (266), 4 states have call successors, (216), 2 states have call predecessors, (216), 2 states have return successors, (214), 3 states have call predecessors, (214), 4 states have call successors, (214) [2025-01-09 04:35:14,320 INFO L276 IsEmpty]: Start isEmpty. Operand 2518 states and 3845 transitions. [2025-01-09 04:35:14,329 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1324 [2025-01-09 04:35:14,330 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 04:35:14,330 INFO L218 NwaCegarLoop]: trace histogram [209, 209, 209, 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] [2025-01-09 04:35:14,330 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-01-09 04:35:14,330 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 04:35:14,331 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 04:35:14,332 INFO L85 PathProgramCache]: Analyzing trace with hash 957401909, now seen corresponding path program 1 times [2025-01-09 04:35:14,332 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 04:35:14,332 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [149157377] [2025-01-09 04:35:14,332 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 04:35:14,332 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 04:35:14,662 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1323 statements into 1 equivalence classes. [2025-01-09 04:35:14,952 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1323 of 1323 statements. [2025-01-09 04:35:14,953 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 04:35:14,953 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 04:35:17,294 INFO L134 CoverageAnalysis]: Checked inductivity of 86947 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 86947 trivial. 0 not checked. [2025-01-09 04:35:17,295 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 04:35:17,295 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [149157377] [2025-01-09 04:35:17,295 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [149157377] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 04:35:17,295 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 04:35:17,296 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-01-09 04:35:17,298 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1029296297] [2025-01-09 04:35:17,298 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 04:35:17,299 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-01-09 04:35:17,299 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 04:35:17,300 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-01-09 04:35:17,300 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2025-01-09 04:35:17,300 INFO L87 Difference]: Start difference. First operand 2518 states and 3845 transitions. Second operand has 6 states, 6 states have (on average 44.5) internal successors, (267), 5 states have internal predecessors, (267), 3 states have call successors, (216), 3 states have call predecessors, (216), 2 states have return successors, (214), 3 states have call predecessors, (214), 3 states have call successors, (214) [2025-01-09 04:35:22,860 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 04:35:22,860 INFO L93 Difference]: Finished difference Result 4475 states and 6866 transitions. [2025-01-09 04:35:22,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-01-09 04:35:22,861 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 44.5) internal successors, (267), 5 states have internal predecessors, (267), 3 states have call successors, (216), 3 states have call predecessors, (216), 2 states have return successors, (214), 3 states have call predecessors, (214), 3 states have call successors, (214) Word has length 1323 [2025-01-09 04:35:22,863 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 04:35:22,898 INFO L225 Difference]: With dead ends: 4475 [2025-01-09 04:35:22,898 INFO L226 Difference]: Without dead ends: 4473 [2025-01-09 04:35:22,903 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2025-01-09 04:35:22,905 INFO L435 NwaCegarLoop]: 2786 mSDtfsCounter, 4587 mSDsluCounter, 6816 mSDsCounter, 0 mSdLazyCounter, 1515 mSolverCounterSat, 2313 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4905 SdHoareTripleChecker+Valid, 9602 SdHoareTripleChecker+Invalid, 3828 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2313 IncrementalHoareTripleChecker+Valid, 1515 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2025-01-09 04:35:22,906 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4905 Valid, 9602 Invalid, 3828 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2313 Valid, 1515 Invalid, 0 Unknown, 0 Unchecked, 5.2s Time] [2025-01-09 04:35:22,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4473 states. [2025-01-09 04:35:23,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4473 to 4445. [2025-01-09 04:35:23,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4445 states, 2562 states have (on average 1.2240437158469946) internal successors, (3136), 2813 states have internal predecessors, (3136), 1837 states have call successors, (1837), 45 states have call predecessors, (1837), 45 states have return successors, (1864), 1639 states have call predecessors, (1864), 1835 states have call successors, (1864) [2025-01-09 04:35:23,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4445 states to 4445 states and 6837 transitions. [2025-01-09 04:35:23,574 INFO L78 Accepts]: Start accepts. Automaton has 4445 states and 6837 transitions. Word has length 1323 [2025-01-09 04:35:23,576 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 04:35:23,576 INFO L471 AbstractCegarLoop]: Abstraction has 4445 states and 6837 transitions. [2025-01-09 04:35:23,577 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 44.5) internal successors, (267), 5 states have internal predecessors, (267), 3 states have call successors, (216), 3 states have call predecessors, (216), 2 states have return successors, (214), 3 states have call predecessors, (214), 3 states have call successors, (214) [2025-01-09 04:35:23,577 INFO L276 IsEmpty]: Start isEmpty. Operand 4445 states and 6837 transitions. [2025-01-09 04:35:23,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1376 [2025-01-09 04:35:23,596 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 04:35:23,597 INFO L218 NwaCegarLoop]: trace histogram [209, 209, 209, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 04:35:23,597 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-01-09 04:35:23,597 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 04:35:23,598 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 04:35:23,598 INFO L85 PathProgramCache]: Analyzing trace with hash 1063483883, now seen corresponding path program 1 times [2025-01-09 04:35:23,598 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 04:35:23,598 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1125987343] [2025-01-09 04:35:23,598 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 04:35:23,599 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 04:35:23,955 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1375 statements into 1 equivalence classes. [2025-01-09 04:35:24,073 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1375 of 1375 statements. [2025-01-09 04:35:24,075 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 04:35:24,075 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 04:35:25,337 INFO L134 CoverageAnalysis]: Checked inductivity of 86957 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 86957 trivial. 0 not checked. [2025-01-09 04:35:25,338 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 04:35:25,338 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1125987343] [2025-01-09 04:35:25,338 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1125987343] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 04:35:25,338 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 04:35:25,338 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-01-09 04:35:25,338 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1549943718] [2025-01-09 04:35:25,338 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 04:35:25,339 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-01-09 04:35:25,339 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 04:35:25,340 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-01-09 04:35:25,340 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-01-09 04:35:25,341 INFO L87 Difference]: Start difference. First operand 4445 states and 6837 transitions. Second operand has 5 states, 5 states have (on average 60.2) internal successors, (301), 5 states have internal predecessors, (301), 3 states have call successors, (221), 2 states have call predecessors, (221), 3 states have return successors, (219), 3 states have call predecessors, (219), 3 states have call successors, (219) [2025-01-09 04:35:27,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 04:35:27,571 INFO L93 Difference]: Finished difference Result 9622 states and 14906 transitions. [2025-01-09 04:35:27,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-09 04:35:27,571 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 60.2) internal successors, (301), 5 states have internal predecessors, (301), 3 states have call successors, (221), 2 states have call predecessors, (221), 3 states have return successors, (219), 3 states have call predecessors, (219), 3 states have call successors, (219) Word has length 1375 [2025-01-09 04:35:27,573 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 04:35:27,631 INFO L225 Difference]: With dead ends: 9622 [2025-01-09 04:35:27,631 INFO L226 Difference]: Without dead ends: 5650 [2025-01-09 04:35:27,666 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2025-01-09 04:35:27,667 INFO L435 NwaCegarLoop]: 3803 mSDtfsCounter, 3928 mSDsluCounter, 5459 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 1581 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3928 SdHoareTripleChecker+Valid, 9262 SdHoareTripleChecker+Invalid, 1647 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1581 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2025-01-09 04:35:27,668 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3928 Valid, 9262 Invalid, 1647 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1581 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2025-01-09 04:35:27,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5650 states. [2025-01-09 04:35:28,662 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5650 to 5643. [2025-01-09 04:35:28,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5643 states, 3294 states have (on average 1.2468123861566485) internal successors, (4107), 3647 states have internal predecessors, (4107), 2285 states have call successors, (2285), 57 states have call predecessors, (2285), 63 states have return successors, (2322), 1991 states have call predecessors, (2322), 2283 states have call successors, (2322) [2025-01-09 04:35:28,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5643 states to 5643 states and 8714 transitions. [2025-01-09 04:35:28,723 INFO L78 Accepts]: Start accepts. Automaton has 5643 states and 8714 transitions. Word has length 1375 [2025-01-09 04:35:28,725 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 04:35:28,725 INFO L471 AbstractCegarLoop]: Abstraction has 5643 states and 8714 transitions. [2025-01-09 04:35:28,725 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 60.2) internal successors, (301), 5 states have internal predecessors, (301), 3 states have call successors, (221), 2 states have call predecessors, (221), 3 states have return successors, (219), 3 states have call predecessors, (219), 3 states have call successors, (219) [2025-01-09 04:35:28,725 INFO L276 IsEmpty]: Start isEmpty. Operand 5643 states and 8714 transitions. [2025-01-09 04:35:28,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1380 [2025-01-09 04:35:28,751 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 04:35:28,751 INFO L218 NwaCegarLoop]: trace histogram [209, 209, 209, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 04:35:28,751 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-01-09 04:35:28,752 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 04:35:28,752 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 04:35:28,752 INFO L85 PathProgramCache]: Analyzing trace with hash 27459310, now seen corresponding path program 1 times [2025-01-09 04:35:28,752 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 04:35:28,753 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [212118513] [2025-01-09 04:35:28,753 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 04:35:28,753 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 04:35:29,187 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1379 statements into 1 equivalence classes. [2025-01-09 04:35:29,272 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1379 of 1379 statements. [2025-01-09 04:35:29,272 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 04:35:29,272 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 04:35:30,478 INFO L134 CoverageAnalysis]: Checked inductivity of 86957 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 86957 trivial. 0 not checked. [2025-01-09 04:35:30,478 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 04:35:30,479 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [212118513] [2025-01-09 04:35:30,479 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [212118513] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 04:35:30,479 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 04:35:30,480 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-01-09 04:35:30,480 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1185994429] [2025-01-09 04:35:30,480 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 04:35:30,481 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-01-09 04:35:30,481 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 04:35:30,482 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-01-09 04:35:30,482 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-01-09 04:35:30,482 INFO L87 Difference]: Start difference. First operand 5643 states and 8714 transitions. Second operand has 5 states, 5 states have (on average 60.6) internal successors, (303), 5 states have internal predecessors, (303), 3 states have call successors, (222), 2 states have call predecessors, (222), 3 states have return successors, (220), 3 states have call predecessors, (220), 3 states have call successors, (220) [2025-01-09 04:35:30,785 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 04:35:30,785 INFO L93 Difference]: Finished difference Result 11395 states and 17682 transitions. [2025-01-09 04:35:30,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-09 04:35:30,787 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 60.6) internal successors, (303), 5 states have internal predecessors, (303), 3 states have call successors, (222), 2 states have call predecessors, (222), 3 states have return successors, (220), 3 states have call predecessors, (220), 3 states have call successors, (220) Word has length 1379 [2025-01-09 04:35:30,789 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 04:35:30,837 INFO L225 Difference]: With dead ends: 11395 [2025-01-09 04:35:30,837 INFO L226 Difference]: Without dead ends: 6225 [2025-01-09 04:35:30,877 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2025-01-09 04:35:30,877 INFO L435 NwaCegarLoop]: 3754 mSDtfsCounter, 2744 mSDsluCounter, 6075 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2744 SdHoareTripleChecker+Valid, 9829 SdHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-01-09 04:35:30,878 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2744 Valid, 9829 Invalid, 79 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-01-09 04:35:30,885 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6225 states. [2025-01-09 04:35:31,650 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6225 to 6221. [2025-01-09 04:35:31,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6221 states, 3649 states have (on average 1.2537681556590847) internal successors, (4575), 4052 states have internal predecessors, (4575), 2500 states have call successors, (2500), 63 states have call predecessors, (2500), 71 states have return successors, (2541), 2158 states have call predecessors, (2541), 2498 states have call successors, (2541) [2025-01-09 04:35:31,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6221 states to 6221 states and 9616 transitions. [2025-01-09 04:35:31,708 INFO L78 Accepts]: Start accepts. Automaton has 6221 states and 9616 transitions. Word has length 1379 [2025-01-09 04:35:31,709 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 04:35:31,710 INFO L471 AbstractCegarLoop]: Abstraction has 6221 states and 9616 transitions. [2025-01-09 04:35:31,710 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 60.6) internal successors, (303), 5 states have internal predecessors, (303), 3 states have call successors, (222), 2 states have call predecessors, (222), 3 states have return successors, (220), 3 states have call predecessors, (220), 3 states have call successors, (220) [2025-01-09 04:35:31,710 INFO L276 IsEmpty]: Start isEmpty. Operand 6221 states and 9616 transitions. [2025-01-09 04:35:31,724 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1381 [2025-01-09 04:35:31,724 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 04:35:31,725 INFO L218 NwaCegarLoop]: trace histogram [209, 209, 209, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 04:35:31,725 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-01-09 04:35:31,725 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 04:35:31,726 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 04:35:31,726 INFO L85 PathProgramCache]: Analyzing trace with hash -1253362926, now seen corresponding path program 1 times [2025-01-09 04:35:31,726 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 04:35:31,726 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [708435478] [2025-01-09 04:35:31,726 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 04:35:31,726 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 04:35:32,036 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1380 statements into 1 equivalence classes. [2025-01-09 04:35:32,130 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1380 of 1380 statements. [2025-01-09 04:35:32,130 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 04:35:32,130 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 04:35:33,234 INFO L134 CoverageAnalysis]: Checked inductivity of 86960 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 86956 trivial. 0 not checked. [2025-01-09 04:35:33,235 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 04:35:33,235 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [708435478] [2025-01-09 04:35:33,235 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [708435478] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 04:35:33,235 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1984577505] [2025-01-09 04:35:33,235 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 04:35:33,235 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 04:35:33,236 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 04:35:33,237 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-09 04:35:33,239 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-01-09 04:35:34,004 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1380 statements into 1 equivalence classes. [2025-01-09 04:35:34,435 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1380 of 1380 statements. [2025-01-09 04:35:34,435 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 04:35:34,435 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 04:35:34,457 INFO L256 TraceCheckSpWp]: Trace formula consists of 4596 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-01-09 04:35:34,490 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 04:35:34,679 INFO L134 CoverageAnalysis]: Checked inductivity of 86960 backedges. 836 proven. 0 refuted. 0 times theorem prover too weak. 86124 trivial. 0 not checked. [2025-01-09 04:35:34,679 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 04:35:34,679 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1984577505] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 04:35:34,679 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-09 04:35:34,680 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [6] total 8 [2025-01-09 04:35:34,680 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1657624716] [2025-01-09 04:35:34,680 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 04:35:34,681 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-01-09 04:35:34,681 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 04:35:34,682 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-01-09 04:35:34,682 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2025-01-09 04:35:34,683 INFO L87 Difference]: Start difference. First operand 6221 states and 9616 transitions. Second operand has 5 states, 5 states have (on average 61.8) internal successors, (309), 5 states have internal predecessors, (309), 3 states have call successors, (222), 3 states have call predecessors, (222), 3 states have return successors, (220), 3 states have call predecessors, (220), 3 states have call successors, (220) [2025-01-09 04:35:38,546 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 04:35:38,546 INFO L93 Difference]: Finished difference Result 11976 states and 18589 transitions. [2025-01-09 04:35:38,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-01-09 04:35:38,547 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 61.8) internal successors, (309), 5 states have internal predecessors, (309), 3 states have call successors, (222), 3 states have call predecessors, (222), 3 states have return successors, (220), 3 states have call predecessors, (220), 3 states have call successors, (220) Word has length 1380 [2025-01-09 04:35:38,549 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 04:35:38,601 INFO L225 Difference]: With dead ends: 11976 [2025-01-09 04:35:38,601 INFO L226 Difference]: Without dead ends: 6228 [2025-01-09 04:35:38,659 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 1386 GetRequests, 1379 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2025-01-09 04:35:38,659 INFO L435 NwaCegarLoop]: 3797 mSDtfsCounter, 2710 mSDsluCounter, 6117 mSDsCounter, 0 mSdLazyCounter, 3224 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2710 SdHoareTripleChecker+Valid, 9914 SdHoareTripleChecker+Invalid, 3249 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 3224 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2025-01-09 04:35:38,660 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2710 Valid, 9914 Invalid, 3249 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 3224 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2025-01-09 04:35:38,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6228 states. [2025-01-09 04:35:39,518 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6228 to 6221. [2025-01-09 04:35:39,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6221 states, 3649 states have (on average 1.2532200602904906) internal successors, (4573), 4052 states have internal predecessors, (4573), 2500 states have call successors, (2500), 63 states have call predecessors, (2500), 71 states have return successors, (2541), 2158 states have call predecessors, (2541), 2498 states have call successors, (2541) [2025-01-09 04:35:39,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6221 states to 6221 states and 9614 transitions. [2025-01-09 04:35:39,571 INFO L78 Accepts]: Start accepts. Automaton has 6221 states and 9614 transitions. Word has length 1380 [2025-01-09 04:35:39,572 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 04:35:39,572 INFO L471 AbstractCegarLoop]: Abstraction has 6221 states and 9614 transitions. [2025-01-09 04:35:39,573 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 61.8) internal successors, (309), 5 states have internal predecessors, (309), 3 states have call successors, (222), 3 states have call predecessors, (222), 3 states have return successors, (220), 3 states have call predecessors, (220), 3 states have call successors, (220) [2025-01-09 04:35:39,573 INFO L276 IsEmpty]: Start isEmpty. Operand 6221 states and 9614 transitions. [2025-01-09 04:35:39,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1389 [2025-01-09 04:35:39,587 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 04:35:39,587 INFO L218 NwaCegarLoop]: trace histogram [209, 209, 209, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 04:35:39,603 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2025-01-09 04:35:39,792 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,2 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 04:35:39,793 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 04:35:39,794 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 04:35:39,794 INFO L85 PathProgramCache]: Analyzing trace with hash -1458588366, now seen corresponding path program 1 times [2025-01-09 04:35:39,794 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 04:35:39,795 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1072738974] [2025-01-09 04:35:39,795 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 04:35:39,795 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 04:35:40,132 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1388 statements into 1 equivalence classes. [2025-01-09 04:35:40,321 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1388 of 1388 statements. [2025-01-09 04:35:40,321 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 04:35:40,321 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 04:35:41,310 INFO L134 CoverageAnalysis]: Checked inductivity of 86964 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 86958 trivial. 0 not checked. [2025-01-09 04:35:41,310 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 04:35:41,310 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1072738974] [2025-01-09 04:35:41,310 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1072738974] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 04:35:41,310 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1037339659] [2025-01-09 04:35:41,310 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 04:35:41,311 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 04:35:41,311 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 04:35:41,316 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-09 04:35:41,317 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-01-09 04:35:42,119 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1388 statements into 1 equivalence classes. [2025-01-09 04:35:42,582 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1388 of 1388 statements. [2025-01-09 04:35:42,582 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 04:35:42,582 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 04:35:42,606 INFO L256 TraceCheckSpWp]: Trace formula consists of 4620 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-01-09 04:35:42,628 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 04:35:42,766 INFO L134 CoverageAnalysis]: Checked inductivity of 86964 backedges. 834 proven. 0 refuted. 0 times theorem prover too weak. 86130 trivial. 0 not checked. [2025-01-09 04:35:42,766 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 04:35:42,766 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1037339659] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 04:35:42,767 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-09 04:35:42,767 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [6] total 8 [2025-01-09 04:35:42,767 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [889268254] [2025-01-09 04:35:42,767 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 04:35:42,768 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-01-09 04:35:42,768 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 04:35:42,769 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-01-09 04:35:42,769 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2025-01-09 04:35:42,770 INFO L87 Difference]: Start difference. First operand 6221 states and 9614 transitions. Second operand has 5 states, 5 states have (on average 61.8) internal successors, (309), 5 states have internal predecessors, (309), 3 states have call successors, (223), 3 states have call predecessors, (223), 3 states have return successors, (221), 3 states have call predecessors, (221), 3 states have call successors, (221) [2025-01-09 04:35:46,799 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 04:35:46,800 INFO L93 Difference]: Finished difference Result 11851 states and 18405 transitions. [2025-01-09 04:35:46,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-01-09 04:35:46,800 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 61.8) internal successors, (309), 5 states have internal predecessors, (309), 3 states have call successors, (223), 3 states have call predecessors, (223), 3 states have return successors, (221), 3 states have call predecessors, (221), 3 states have call successors, (221) Word has length 1388 [2025-01-09 04:35:46,801 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 04:35:46,829 INFO L225 Difference]: With dead ends: 11851 [2025-01-09 04:35:46,829 INFO L226 Difference]: Without dead ends: 6103 [2025-01-09 04:35:46,861 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 1394 GetRequests, 1387 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2025-01-09 04:35:46,861 INFO L435 NwaCegarLoop]: 3746 mSDtfsCounter, 2720 mSDsluCounter, 4522 mSDsCounter, 0 mSdLazyCounter, 3208 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2720 SdHoareTripleChecker+Valid, 8268 SdHoareTripleChecker+Invalid, 3235 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 3208 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2025-01-09 04:35:46,861 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2720 Valid, 8268 Invalid, 3235 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 3208 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2025-01-09 04:35:46,866 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6103 states. [2025-01-09 04:35:47,612 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6103 to 6099. [2025-01-09 04:35:47,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6099 states, 3560 states have (on average 1.25) internal successors, (4450), 3963 states have internal predecessors, (4450), 2468 states have call successors, (2468), 62 states have call predecessors, (2468), 70 states have return successors, (2509), 2126 states have call predecessors, (2509), 2466 states have call successors, (2509) [2025-01-09 04:35:47,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6099 states to 6099 states and 9427 transitions. [2025-01-09 04:35:47,664 INFO L78 Accepts]: Start accepts. Automaton has 6099 states and 9427 transitions. Word has length 1388 [2025-01-09 04:35:47,665 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 04:35:47,665 INFO L471 AbstractCegarLoop]: Abstraction has 6099 states and 9427 transitions. [2025-01-09 04:35:47,665 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 61.8) internal successors, (309), 5 states have internal predecessors, (309), 3 states have call successors, (223), 3 states have call predecessors, (223), 3 states have return successors, (221), 3 states have call predecessors, (221), 3 states have call successors, (221) [2025-01-09 04:35:47,665 INFO L276 IsEmpty]: Start isEmpty. Operand 6099 states and 9427 transitions. [2025-01-09 04:35:47,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1391 [2025-01-09 04:35:47,678 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 04:35:47,679 INFO L218 NwaCegarLoop]: trace histogram [209, 209, 209, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 04:35:47,696 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2025-01-09 04:35:47,883 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,3 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 04:35:47,883 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 04:35:47,888 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 04:35:47,889 INFO L85 PathProgramCache]: Analyzing trace with hash 510028488, now seen corresponding path program 1 times [2025-01-09 04:35:47,889 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 04:35:47,889 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1446093148] [2025-01-09 04:35:47,889 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 04:35:47,889 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 04:35:48,220 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1390 statements into 1 equivalence classes. [2025-01-09 04:35:55,845 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1390 of 1390 statements. [2025-01-09 04:35:55,845 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 04:35:55,845 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat