./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/seq-mthreaded/rekh_ctm.2-2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e2fb8bed Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/seq-mthreaded/rekh_ctm.2-2.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/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 f1e7a931f8678a52ab26f5a1b74bb59e33ef4ed9c03430a4d28342e1a824b13d --- Real Ultimate output --- This is Ultimate 0.3.0-?-e2fb8be-m [2025-03-08 06:10:06,073 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-08 06:10:06,188 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2025-03-08 06:10:06,195 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-08 06:10:06,195 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-08 06:10:06,236 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-08 06:10:06,236 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-08 06:10:06,236 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-08 06:10:06,237 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-08 06:10:06,237 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-08 06:10:06,237 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-08 06:10:06,237 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-08 06:10:06,237 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-08 06:10:06,237 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-08 06:10:06,237 INFO L153 SettingsManager]: * Use SBE=true [2025-03-08 06:10:06,237 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-08 06:10:06,237 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-08 06:10:06,237 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-08 06:10:06,243 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-08 06:10:06,243 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-08 06:10:06,243 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-08 06:10:06,243 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-08 06:10:06,243 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-08 06:10:06,243 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-08 06:10:06,243 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-08 06:10:06,243 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-08 06:10:06,243 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-08 06:10:06,243 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-08 06:10:06,243 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-08 06:10:06,243 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-08 06:10:06,243 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-08 06:10:06,243 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-08 06:10:06,243 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-08 06:10:06,243 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-08 06:10:06,244 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-08 06:10:06,244 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-08 06:10:06,244 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-08 06:10:06,244 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-08 06:10:06,244 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-08 06:10:06,244 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-08 06:10:06,244 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-08 06:10:06,244 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-08 06:10:06,244 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-08 06:10:06,244 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/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 -> f1e7a931f8678a52ab26f5a1b74bb59e33ef4ed9c03430a4d28342e1a824b13d [2025-03-08 06:10:06,657 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-08 06:10:06,666 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-08 06:10:06,668 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-08 06:10:06,669 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-08 06:10:06,669 INFO L274 PluginConnector]: CDTParser initialized [2025-03-08 06:10:06,670 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded/rekh_ctm.2-2.c [2025-03-08 06:10:08,453 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b27ca9e45/da7122c1751245c7a32afca8c3352e2c/FLAG5c58f76ea [2025-03-08 06:10:09,033 INFO L384 CDTParser]: Found 1 translation units. [2025-03-08 06:10:09,034 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/rekh_ctm.2-2.c [2025-03-08 06:10:09,081 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b27ca9e45/da7122c1751245c7a32afca8c3352e2c/FLAG5c58f76ea [2025-03-08 06:10:09,560 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b27ca9e45/da7122c1751245c7a32afca8c3352e2c [2025-03-08 06:10:09,562 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-08 06:10:09,566 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-08 06:10:09,567 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-08 06:10:09,567 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-08 06:10:09,571 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-08 06:10:09,572 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.03 06:10:09" (1/1) ... [2025-03-08 06:10:09,573 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@79c7fe49 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:10:09, skipping insertion in model container [2025-03-08 06:10:09,573 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.03 06:10:09" (1/1) ... [2025-03-08 06:10:09,669 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-08 06:10:09,918 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/rekh_ctm.2-2.c[1870,1883] [2025-03-08 06:10:10,613 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-08 06:10:10,642 INFO L200 MainTranslator]: Completed pre-run [2025-03-08 06:10:10,651 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"/tmp/aaaa/ctm.ok2.i","-S") [42] [2025-03-08 06:10:10,665 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/rekh_ctm.2-2.c[1870,1883] [2025-03-08 06:10:10,927 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-08 06:10:10,954 INFO L204 MainTranslator]: Completed translation [2025-03-08 06:10:10,955 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:10:10 WrapperNode [2025-03-08 06:10:10,955 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-08 06:10:10,956 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-08 06:10:10,956 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-08 06:10:10,956 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-08 06:10:10,969 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:10:10" (1/1) ... [2025-03-08 06:10:11,042 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:10:10" (1/1) ... [2025-03-08 06:10:11,255 INFO L138 Inliner]: procedures = 99, calls = 2725, calls flagged for inlining = 34, calls inlined = 34, statements flattened = 8471 [2025-03-08 06:10:11,256 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-08 06:10:11,256 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-08 06:10:11,256 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-08 06:10:11,256 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-08 06:10:11,263 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:10:10" (1/1) ... [2025-03-08 06:10:11,264 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:10:10" (1/1) ... [2025-03-08 06:10:11,305 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:10:10" (1/1) ... [2025-03-08 06:10:11,443 INFO L175 MemorySlicer]: Split 2332 memory accesses to 49 slices as follows [2, 80, 86, 37, 37, 49, 46, 49, 46, 49, 46, 49, 46, 49, 46, 49, 46, 49, 46, 49, 46, 49, 46, 49, 46, 49, 46, 49, 46, 49, 46, 49, 46, 49, 46, 49, 46, 49, 46, 49, 46, 49, 46, 49, 46, 49, 46, 49, 46]. 4 percent of accesses are in the largest equivalence class. The 338 initializations are split as follows [2, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7]. The 402 writes are split as follows [0, 7, 7, 7, 7, 11, 6, 11, 6, 11, 6, 11, 6, 11, 6, 11, 6, 11, 6, 11, 6, 11, 6, 11, 6, 11, 6, 11, 6, 11, 6, 11, 6, 11, 6, 11, 6, 11, 6, 11, 6, 11, 6, 11, 6, 11, 6, 11, 6]. [2025-03-08 06:10:11,451 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:10:10" (1/1) ... [2025-03-08 06:10:11,452 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:10:10" (1/1) ... [2025-03-08 06:10:11,713 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:10:10" (1/1) ... [2025-03-08 06:10:11,742 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:10:10" (1/1) ... [2025-03-08 06:10:11,777 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:10:10" (1/1) ... [2025-03-08 06:10:11,800 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:10:10" (1/1) ... [2025-03-08 06:10:11,859 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-08 06:10:11,861 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-08 06:10:11,862 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-08 06:10:11,862 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-08 06:10:11,863 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:10:10" (1/1) ... [2025-03-08 06:10:11,868 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-08 06:10:11,878 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 06:10:11,893 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-03-08 06:10:11,895 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-03-08 06:10:11,916 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_W_state [2025-03-08 06:10:11,916 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_W_state [2025-03-08 06:10:11,916 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_T_state [2025-03-08 06:10:11,916 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_T_state [2025-03-08 06:10:11,916 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-03-08 06:10:11,916 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-03-08 06:10:11,916 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2025-03-08 06:10:11,917 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2025-03-08 06:10:11,917 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2025-03-08 06:10:11,917 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2025-03-08 06:10:11,917 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2025-03-08 06:10:11,917 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2025-03-08 06:10:11,917 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#8 [2025-03-08 06:10:11,917 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#9 [2025-03-08 06:10:11,918 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#10 [2025-03-08 06:10:11,918 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#11 [2025-03-08 06:10:11,918 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#12 [2025-03-08 06:10:11,918 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#13 [2025-03-08 06:10:11,918 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#14 [2025-03-08 06:10:11,918 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#15 [2025-03-08 06:10:11,918 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#16 [2025-03-08 06:10:11,918 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#17 [2025-03-08 06:10:11,918 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#18 [2025-03-08 06:10:11,918 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#19 [2025-03-08 06:10:11,918 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#20 [2025-03-08 06:10:11,918 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#21 [2025-03-08 06:10:11,918 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#22 [2025-03-08 06:10:11,918 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#23 [2025-03-08 06:10:11,918 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#24 [2025-03-08 06:10:11,918 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#25 [2025-03-08 06:10:11,918 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#26 [2025-03-08 06:10:11,918 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#27 [2025-03-08 06:10:11,918 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#28 [2025-03-08 06:10:11,920 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#29 [2025-03-08 06:10:11,920 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#30 [2025-03-08 06:10:11,920 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#31 [2025-03-08 06:10:11,920 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#32 [2025-03-08 06:10:11,920 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#33 [2025-03-08 06:10:11,920 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#34 [2025-03-08 06:10:11,920 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#35 [2025-03-08 06:10:11,920 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#36 [2025-03-08 06:10:11,920 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#37 [2025-03-08 06:10:11,920 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#38 [2025-03-08 06:10:11,920 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#39 [2025-03-08 06:10:11,920 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#40 [2025-03-08 06:10:11,920 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#41 [2025-03-08 06:10:11,920 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#42 [2025-03-08 06:10:11,920 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#43 [2025-03-08 06:10:11,920 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#44 [2025-03-08 06:10:11,920 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#45 [2025-03-08 06:10:11,920 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#46 [2025-03-08 06:10:11,920 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#47 [2025-03-08 06:10:11,920 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#48 [2025-03-08 06:10:11,920 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_need_to_run_nxtbg [2025-03-08 06:10:11,920 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_need_to_run_nxtbg [2025-03-08 06:10:11,921 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_count [2025-03-08 06:10:11,921 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_count [2025-03-08 06:10:11,921 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write___startrek_current_priority [2025-03-08 06:10:11,921 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write___startrek_current_priority [2025-03-08 06:10:11,921 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_input [2025-03-08 06:10:11,921 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_input [2025-03-08 06:10:11,921 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_hyperperiod [2025-03-08 06:10:11,921 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_hyperperiod [2025-03-08 06:10:11,921 INFO L130 BoogieDeclarations]: Found specification of procedure bg_nxtcolorsensor [2025-03-08 06:10:11,921 INFO L138 BoogieDeclarations]: Found implementation of procedure bg_nxtcolorsensor [2025-03-08 06:10:11,921 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_Writer [2025-03-08 06:10:11,921 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_Writer [2025-03-08 06:10:11,921 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_nxtcolorsensor_mode [2025-03-08 06:10:11,921 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtcolorsensor_mode [2025-03-08 06:10:11,921 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-03-08 06:10:11,921 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-03-08 06:10:11,921 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2025-03-08 06:10:11,921 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2025-03-08 06:10:11,921 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2025-03-08 06:10:11,921 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2025-03-08 06:10:11,921 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2025-03-08 06:10:11,921 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2025-03-08 06:10:11,921 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#8 [2025-03-08 06:10:11,921 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#9 [2025-03-08 06:10:11,921 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#10 [2025-03-08 06:10:11,921 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#11 [2025-03-08 06:10:11,921 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#12 [2025-03-08 06:10:11,921 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#13 [2025-03-08 06:10:11,921 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#14 [2025-03-08 06:10:11,921 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#15 [2025-03-08 06:10:11,921 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#16 [2025-03-08 06:10:11,921 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#17 [2025-03-08 06:10:11,922 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#18 [2025-03-08 06:10:11,922 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#19 [2025-03-08 06:10:11,922 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#20 [2025-03-08 06:10:11,922 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#21 [2025-03-08 06:10:11,922 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#22 [2025-03-08 06:10:11,922 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#23 [2025-03-08 06:10:11,922 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#24 [2025-03-08 06:10:11,922 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#25 [2025-03-08 06:10:11,922 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#26 [2025-03-08 06:10:11,922 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#27 [2025-03-08 06:10:11,922 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#28 [2025-03-08 06:10:11,922 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#29 [2025-03-08 06:10:11,922 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#30 [2025-03-08 06:10:11,922 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#31 [2025-03-08 06:10:11,922 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#32 [2025-03-08 06:10:11,922 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#33 [2025-03-08 06:10:11,922 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#34 [2025-03-08 06:10:11,922 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#35 [2025-03-08 06:10:11,922 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#36 [2025-03-08 06:10:11,922 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#37 [2025-03-08 06:10:11,922 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#38 [2025-03-08 06:10:11,922 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#39 [2025-03-08 06:10:11,925 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#40 [2025-03-08 06:10:11,925 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#41 [2025-03-08 06:10:11,925 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#42 [2025-03-08 06:10:11,925 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#43 [2025-03-08 06:10:11,925 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#44 [2025-03-08 06:10:11,925 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#45 [2025-03-08 06:10:11,925 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#46 [2025-03-08 06:10:11,925 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#47 [2025-03-08 06:10:11,925 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#48 [2025-03-08 06:10:11,926 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2025-03-08 06:10:11,926 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2025-03-08 06:10:11,926 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_R_count [2025-03-08 06:10:11,926 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_R_count [2025-03-08 06:10:11,926 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_T_state [2025-03-08 06:10:11,926 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_T_state [2025-03-08 06:10:11,926 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_output [2025-03-08 06:10:11,927 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_output [2025-03-08 06:10:11,927 INFO L130 BoogieDeclarations]: Found specification of procedure move_motor [2025-03-08 06:10:11,927 INFO L138 BoogieDeclarations]: Found implementation of procedure move_motor [2025-03-08 06:10:11,927 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_R_speed [2025-03-08 06:10:11,927 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_R_speed [2025-03-08 06:10:11,927 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_get_count [2025-03-08 06:10:11,927 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_get_count [2025-03-08 06:10:11,927 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-08 06:10:11,927 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t2 [2025-03-08 06:10:11,927 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t2 [2025-03-08 06:10:11,927 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_set_nxtcolorsensor [2025-03-08 06:10:11,927 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_set_nxtcolorsensor [2025-03-08 06:10:11,927 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t3 [2025-03-08 06:10:11,927 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t3 [2025-03-08 06:10:11,927 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_output [2025-03-08 06:10:11,927 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_output [2025-03-08 06:10:11,927 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t0 [2025-03-08 06:10:11,927 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t0 [2025-03-08 06:10:11,927 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_T_count [2025-03-08 06:10:11,927 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_T_count [2025-03-08 06:10:11,927 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t1 [2025-03-08 06:10:11,927 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t1 [2025-03-08 06:10:11,927 INFO L130 BoogieDeclarations]: Found specification of procedure TerminateTask [2025-03-08 06:10:11,927 INFO L138 BoogieDeclarations]: Found implementation of procedure TerminateTask [2025-03-08 06:10:11,927 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_W_count [2025-03-08 06:10:11,927 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_W_count [2025-03-08 06:10:11,927 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read___startrek_current_priority [2025-03-08 06:10:11,927 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read___startrek_current_priority [2025-03-08 06:10:11,927 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_W_count [2025-03-08 06:10:11,927 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_W_count [2025-03-08 06:10:11,927 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_T_count [2025-03-08 06:10:11,927 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_T_count [2025-03-08 06:10:11,927 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_T_speed [2025-03-08 06:10:11,927 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_T_speed [2025-03-08 06:10:11,928 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_nxtcolorsensor_data_mode [2025-03-08 06:10:11,928 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtcolorsensor_data_mode [2025-03-08 06:10:11,928 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_threshold [2025-03-08 06:10:11,928 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_threshold [2025-03-08 06:10:11,928 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_need_to_read [2025-03-08 06:10:11,928 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_need_to_read [2025-03-08 06:10:11,928 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_R_state [2025-03-08 06:10:11,928 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_R_state [2025-03-08 06:10:11,928 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_Reader [2025-03-08 06:10:11,928 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_Reader [2025-03-08 06:10:11,928 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_dir [2025-03-08 06:10:11,928 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_dir [2025-03-08 06:10:11,928 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_W_speed [2025-03-08 06:10:11,928 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_W_speed [2025-03-08 06:10:11,928 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_input [2025-03-08 06:10:11,928 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_input [2025-03-08 06:10:11,928 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_R_state [2025-03-08 06:10:11,928 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_R_state [2025-03-08 06:10:11,928 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_need_to_run_nxtbg [2025-03-08 06:10:11,928 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_need_to_run_nxtbg [2025-03-08 06:10:11,928 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_W_state [2025-03-08 06:10:11,928 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_W_state [2025-03-08 06:10:11,928 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_R_count [2025-03-08 06:10:11,928 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_R_count [2025-03-08 06:10:11,928 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_TapeMover [2025-03-08 06:10:11,928 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_TapeMover [2025-03-08 06:10:11,928 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_nxtcolorsensor_mode [2025-03-08 06:10:11,928 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_nxtcolorsensor_mode [2025-03-08 06:10:11,928 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-08 06:10:11,928 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-03-08 06:10:11,928 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-03-08 06:10:11,928 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2025-03-08 06:10:11,928 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2025-03-08 06:10:11,928 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2025-03-08 06:10:11,928 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2025-03-08 06:10:11,928 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2025-03-08 06:10:11,931 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2025-03-08 06:10:11,931 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2025-03-08 06:10:11,931 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#10 [2025-03-08 06:10:11,931 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#11 [2025-03-08 06:10:11,931 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#12 [2025-03-08 06:10:11,931 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#13 [2025-03-08 06:10:11,931 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#14 [2025-03-08 06:10:11,931 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#15 [2025-03-08 06:10:11,931 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#16 [2025-03-08 06:10:11,931 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#17 [2025-03-08 06:10:11,931 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#18 [2025-03-08 06:10:11,931 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#19 [2025-03-08 06:10:11,931 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#20 [2025-03-08 06:10:11,931 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#21 [2025-03-08 06:10:11,931 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#22 [2025-03-08 06:10:11,931 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#23 [2025-03-08 06:10:11,931 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#24 [2025-03-08 06:10:11,931 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#25 [2025-03-08 06:10:11,931 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#26 [2025-03-08 06:10:11,931 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#27 [2025-03-08 06:10:11,931 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#28 [2025-03-08 06:10:11,931 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#29 [2025-03-08 06:10:11,931 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#30 [2025-03-08 06:10:11,931 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#31 [2025-03-08 06:10:11,932 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#32 [2025-03-08 06:10:11,932 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#33 [2025-03-08 06:10:11,932 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#34 [2025-03-08 06:10:11,932 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#35 [2025-03-08 06:10:11,932 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#36 [2025-03-08 06:10:11,932 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#37 [2025-03-08 06:10:11,932 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#38 [2025-03-08 06:10:11,932 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#39 [2025-03-08 06:10:11,932 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#40 [2025-03-08 06:10:11,932 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#41 [2025-03-08 06:10:11,932 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#42 [2025-03-08 06:10:11,932 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#43 [2025-03-08 06:10:11,932 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#44 [2025-03-08 06:10:11,932 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#45 [2025-03-08 06:10:11,932 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#46 [2025-03-08 06:10:11,932 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#47 [2025-03-08 06:10:11,932 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#48 [2025-03-08 06:10:11,932 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_Controller [2025-03-08 06:10:11,932 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_Controller [2025-03-08 06:10:11,932 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-08 06:10:11,932 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-08 06:10:12,585 INFO L256 CfgBuilder]: Building ICFG [2025-03-08 06:10:12,587 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-08 06:10:21,852 INFO L? ?]: Removed 939 outVars from TransFormulas that were not future-live. [2025-03-08 06:10:21,852 INFO L307 CfgBuilder]: Performing block encoding [2025-03-08 06:10:21,918 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-08 06:10:21,922 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-08 06:10:21,922 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.03 06:10:21 BoogieIcfgContainer [2025-03-08 06:10:21,922 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-08 06:10:21,924 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-08 06:10:21,924 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-08 06:10:21,931 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-08 06:10:21,932 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.03 06:10:09" (1/3) ... [2025-03-08 06:10:21,933 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@629df82e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.03 06:10:21, skipping insertion in model container [2025-03-08 06:10:21,933 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:10:10" (2/3) ... [2025-03-08 06:10:21,933 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@629df82e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.03 06:10:21, skipping insertion in model container [2025-03-08 06:10:21,933 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.03 06:10:21" (3/3) ... [2025-03-08 06:10:21,935 INFO L128 eAbstractionObserver]: Analyzing ICFG rekh_ctm.2-2.c [2025-03-08 06:10:21,946 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-08 06:10:21,950 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG rekh_ctm.2-2.c that has 46 procedures, 2460 locations, 1 initial locations, 0 loop locations, and 1 error locations. [2025-03-08 06:10:22,063 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-08 06:10:22,074 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;@3b5b36fe, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-08 06:10:22,075 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-03-08 06:10:22,086 INFO L276 IsEmpty]: Start isEmpty. Operand has 2460 states, 2109 states have (on average 1.4803224276908487) internal successors, (3122), 2133 states have internal predecessors, (3122), 304 states have call successors, (304), 45 states have call predecessors, (304), 45 states have return successors, (304), 294 states have call predecessors, (304), 304 states have call successors, (304) [2025-03-08 06:10:22,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2025-03-08 06:10:22,102 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 06:10:22,102 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 06:10:22,103 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 06:10:22,106 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 06:10:22,108 INFO L85 PathProgramCache]: Analyzing trace with hash -1771111513, now seen corresponding path program 1 times [2025-03-08 06:10:22,114 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 06:10:22,115 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1615628011] [2025-03-08 06:10:22,117 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 06:10:22,117 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 06:10:22,678 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 148 statements into 1 equivalence classes. [2025-03-08 06:10:22,822 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 148 of 148 statements. [2025-03-08 06:10:22,822 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 06:10:22,823 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 06:10:23,107 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 06:10:23,108 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 06:10:23,108 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1615628011] [2025-03-08 06:10:23,108 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1615628011] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 06:10:23,108 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 06:10:23,109 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-08 06:10:23,111 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1319666776] [2025-03-08 06:10:23,111 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 06:10:23,115 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-03-08 06:10:23,116 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 06:10:23,134 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-03-08 06:10:23,135 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-03-08 06:10:23,142 INFO L87 Difference]: Start difference. First operand has 2460 states, 2109 states have (on average 1.4803224276908487) internal successors, (3122), 2133 states have internal predecessors, (3122), 304 states have call successors, (304), 45 states have call predecessors, (304), 45 states have return successors, (304), 294 states have call predecessors, (304), 304 states have call successors, (304) Second operand has 2 states, 2 states have (on average 71.0) internal successors, (142), 2 states have internal predecessors, (142), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2025-03-08 06:10:23,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 06:10:23,324 INFO L93 Difference]: Finished difference Result 4911 states and 7706 transitions. [2025-03-08 06:10:23,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-08 06:10:23,325 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 71.0) internal successors, (142), 2 states have internal predecessors, (142), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 148 [2025-03-08 06:10:23,326 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 06:10:23,360 INFO L225 Difference]: With dead ends: 4911 [2025-03-08 06:10:23,362 INFO L226 Difference]: Without dead ends: 2447 [2025-03-08 06:10:23,391 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-03-08 06:10:23,395 INFO L435 NwaCegarLoop]: 3034 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 3034 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-08 06:10:23,396 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 3034 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-08 06:10:23,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2447 states. [2025-03-08 06:10:23,522 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2447 to 2447. [2025-03-08 06:10:23,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2447 states, 2097 states have (on average 1.1530758226037197) internal successors, (2418), 2121 states have internal predecessors, (2418), 304 states have call successors, (304), 45 states have call predecessors, (304), 45 states have return successors, (303), 293 states have call predecessors, (303), 303 states have call successors, (303) [2025-03-08 06:10:23,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2447 states to 2447 states and 3025 transitions. [2025-03-08 06:10:23,553 INFO L78 Accepts]: Start accepts. Automaton has 2447 states and 3025 transitions. Word has length 148 [2025-03-08 06:10:23,554 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 06:10:23,554 INFO L471 AbstractCegarLoop]: Abstraction has 2447 states and 3025 transitions. [2025-03-08 06:10:23,554 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 71.0) internal successors, (142), 2 states have internal predecessors, (142), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2025-03-08 06:10:23,554 INFO L276 IsEmpty]: Start isEmpty. Operand 2447 states and 3025 transitions. [2025-03-08 06:10:23,565 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2025-03-08 06:10:23,566 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 06:10:23,566 INFO L218 NwaCegarLoop]: trace histogram [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] [2025-03-08 06:10:23,566 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-03-08 06:10:23,566 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 06:10:23,567 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 06:10:23,567 INFO L85 PathProgramCache]: Analyzing trace with hash -372894925, now seen corresponding path program 1 times [2025-03-08 06:10:23,567 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 06:10:23,567 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1487153808] [2025-03-08 06:10:23,567 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 06:10:23,567 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 06:10:23,891 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 208 statements into 1 equivalence classes. [2025-03-08 06:10:24,056 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 208 of 208 statements. [2025-03-08 06:10:24,057 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 06:10:24,059 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 06:10:24,845 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-03-08 06:10:24,846 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 06:10:24,846 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1487153808] [2025-03-08 06:10:24,846 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1487153808] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 06:10:24,847 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 06:10:24,847 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-03-08 06:10:24,847 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2124654638] [2025-03-08 06:10:24,847 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 06:10:24,848 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-08 06:10:24,849 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 06:10:24,849 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-08 06:10:24,849 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2025-03-08 06:10:24,850 INFO L87 Difference]: Start difference. First operand 2447 states and 3025 transitions. Second operand has 6 states, 6 states have (on average 31.666666666666668) internal successors, (190), 6 states have internal predecessors, (190), 4 states have call successors, (10), 2 states have call predecessors, (10), 4 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2025-03-08 06:10:27,518 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 06:10:27,519 INFO L93 Difference]: Finished difference Result 5548 states and 6959 transitions. [2025-03-08 06:10:27,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-08 06:10:27,519 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 31.666666666666668) internal successors, (190), 6 states have internal predecessors, (190), 4 states have call successors, (10), 2 states have call predecessors, (10), 4 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 208 [2025-03-08 06:10:27,520 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 06:10:27,535 INFO L225 Difference]: With dead ends: 5548 [2025-03-08 06:10:27,535 INFO L226 Difference]: Without dead ends: 3106 [2025-03-08 06:10:27,548 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2025-03-08 06:10:27,548 INFO L435 NwaCegarLoop]: 3639 mSDtfsCounter, 5804 mSDsluCounter, 4588 mSDsCounter, 0 mSdLazyCounter, 2050 mSolverCounterSat, 485 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5804 SdHoareTripleChecker+Valid, 8227 SdHoareTripleChecker+Invalid, 2535 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 485 IncrementalHoareTripleChecker+Valid, 2050 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2025-03-08 06:10:27,549 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5804 Valid, 8227 Invalid, 2535 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [485 Valid, 2050 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2025-03-08 06:10:27,552 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3106 states. [2025-03-08 06:10:27,645 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3106 to 2970. [2025-03-08 06:10:27,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2970 states, 2472 states have (on average 1.186084142394822) internal successors, (2932), 2502 states have internal predecessors, (2932), 419 states have call successors, (419), 78 states have call predecessors, (419), 78 states have return successors, (418), 404 states have call predecessors, (418), 418 states have call successors, (418) [2025-03-08 06:10:27,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2970 states to 2970 states and 3769 transitions. [2025-03-08 06:10:27,663 INFO L78 Accepts]: Start accepts. Automaton has 2970 states and 3769 transitions. Word has length 208 [2025-03-08 06:10:27,664 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 06:10:27,665 INFO L471 AbstractCegarLoop]: Abstraction has 2970 states and 3769 transitions. [2025-03-08 06:10:27,665 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 31.666666666666668) internal successors, (190), 6 states have internal predecessors, (190), 4 states have call successors, (10), 2 states have call predecessors, (10), 4 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2025-03-08 06:10:27,665 INFO L276 IsEmpty]: Start isEmpty. Operand 2970 states and 3769 transitions. [2025-03-08 06:10:27,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 210 [2025-03-08 06:10:27,673 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 06:10:27,673 INFO L218 NwaCegarLoop]: trace histogram [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] [2025-03-08 06:10:27,673 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-03-08 06:10:27,673 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 06:10:27,673 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 06:10:27,674 INFO L85 PathProgramCache]: Analyzing trace with hash -728444218, now seen corresponding path program 1 times [2025-03-08 06:10:27,674 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 06:10:27,674 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1431037789] [2025-03-08 06:10:27,674 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 06:10:27,674 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 06:10:28,094 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 209 statements into 1 equivalence classes. [2025-03-08 06:10:28,187 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 209 of 209 statements. [2025-03-08 06:10:28,188 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 06:10:28,188 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 06:10:28,807 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-03-08 06:10:28,807 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 06:10:28,808 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1431037789] [2025-03-08 06:10:28,808 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1431037789] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 06:10:28,808 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 06:10:28,808 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-03-08 06:10:28,808 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [505243204] [2025-03-08 06:10:28,808 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 06:10:28,808 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-08 06:10:28,808 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 06:10:28,809 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-08 06:10:28,809 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2025-03-08 06:10:28,809 INFO L87 Difference]: Start difference. First operand 2970 states and 3769 transitions. Second operand has 6 states, 6 states have (on average 31.666666666666668) internal successors, (190), 6 states have internal predecessors, (190), 4 states have call successors, (10), 2 states have call predecessors, (10), 4 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2025-03-08 06:10:31,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 06:10:31,251 INFO L93 Difference]: Finished difference Result 6447 states and 8240 transitions. [2025-03-08 06:10:31,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-08 06:10:31,252 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 31.666666666666668) internal successors, (190), 6 states have internal predecessors, (190), 4 states have call successors, (10), 2 states have call predecessors, (10), 4 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 209 [2025-03-08 06:10:31,252 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 06:10:31,273 INFO L225 Difference]: With dead ends: 6447 [2025-03-08 06:10:31,273 INFO L226 Difference]: Without dead ends: 3482 [2025-03-08 06:10:31,288 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2025-03-08 06:10:31,289 INFO L435 NwaCegarLoop]: 3516 mSDtfsCounter, 5708 mSDsluCounter, 4570 mSDsCounter, 0 mSdLazyCounter, 2008 mSolverCounterSat, 558 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5708 SdHoareTripleChecker+Valid, 8086 SdHoareTripleChecker+Invalid, 2566 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 558 IncrementalHoareTripleChecker+Valid, 2008 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2025-03-08 06:10:31,290 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5708 Valid, 8086 Invalid, 2566 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [558 Valid, 2008 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2025-03-08 06:10:31,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3482 states. [2025-03-08 06:10:31,385 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3482 to 3344. [2025-03-08 06:10:31,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3344 states, 2748 states have (on average 1.205604075691412) internal successors, (3313), 2787 states have internal predecessors, (3313), 496 states have call successors, (496), 99 states have call predecessors, (496), 99 states have return successors, (495), 477 states have call predecessors, (495), 495 states have call successors, (495) [2025-03-08 06:10:31,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3344 states to 3344 states and 4304 transitions. [2025-03-08 06:10:31,405 INFO L78 Accepts]: Start accepts. Automaton has 3344 states and 4304 transitions. Word has length 209 [2025-03-08 06:10:31,405 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 06:10:31,405 INFO L471 AbstractCegarLoop]: Abstraction has 3344 states and 4304 transitions. [2025-03-08 06:10:31,406 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 31.666666666666668) internal successors, (190), 6 states have internal predecessors, (190), 4 states have call successors, (10), 2 states have call predecessors, (10), 4 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2025-03-08 06:10:31,406 INFO L276 IsEmpty]: Start isEmpty. Operand 3344 states and 4304 transitions. [2025-03-08 06:10:31,413 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2025-03-08 06:10:31,413 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 06:10:31,414 INFO L218 NwaCegarLoop]: trace histogram [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] [2025-03-08 06:10:31,415 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-03-08 06:10:31,415 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 06:10:31,415 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 06:10:31,415 INFO L85 PathProgramCache]: Analyzing trace with hash 1344426843, now seen corresponding path program 1 times [2025-03-08 06:10:31,415 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 06:10:31,416 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1128230165] [2025-03-08 06:10:31,416 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 06:10:31,416 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 06:10:31,721 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 205 statements into 1 equivalence classes. [2025-03-08 06:10:31,810 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 205 of 205 statements. [2025-03-08 06:10:31,810 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 06:10:31,810 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 06:10:32,889 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2025-03-08 06:10:32,889 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 06:10:32,889 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1128230165] [2025-03-08 06:10:32,889 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1128230165] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 06:10:32,889 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 06:10:32,889 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-08 06:10:32,890 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [598822745] [2025-03-08 06:10:32,890 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 06:10:32,890 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-08 06:10:32,890 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 06:10:32,891 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-08 06:10:32,891 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-03-08 06:10:32,891 INFO L87 Difference]: Start difference. First operand 3344 states and 4304 transitions. Second operand has 5 states, 4 states have (on average 45.5) internal successors, (182), 5 states have internal predecessors, (182), 4 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (7), 2 states have call predecessors, (7), 3 states have call successors, (7) [2025-03-08 06:10:34,724 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 06:10:34,724 INFO L93 Difference]: Finished difference Result 7057 states and 9144 transitions. [2025-03-08 06:10:34,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-08 06:10:34,724 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 45.5) internal successors, (182), 5 states have internal predecessors, (182), 4 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (7), 2 states have call predecessors, (7), 3 states have call successors, (7) Word has length 205 [2025-03-08 06:10:34,725 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 06:10:34,745 INFO L225 Difference]: With dead ends: 7057 [2025-03-08 06:10:34,745 INFO L226 Difference]: Without dead ends: 3718 [2025-03-08 06:10:34,757 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2025-03-08 06:10:34,758 INFO L435 NwaCegarLoop]: 3410 mSDtfsCounter, 3656 mSDsluCounter, 3338 mSDsCounter, 0 mSdLazyCounter, 1651 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3656 SdHoareTripleChecker+Valid, 6748 SdHoareTripleChecker+Invalid, 1659 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 1651 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2025-03-08 06:10:34,758 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3656 Valid, 6748 Invalid, 1659 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 1651 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2025-03-08 06:10:34,764 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3718 states. [2025-03-08 06:10:34,853 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3718 to 3716. [2025-03-08 06:10:34,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3716 states, 3023 states have (on average 1.2216341382732385) internal successors, (3693), 3068 states have internal predecessors, (3693), 573 states have call successors, (573), 119 states have call predecessors, (573), 119 states have return successors, (572), 552 states have call predecessors, (572), 572 states have call successors, (572) [2025-03-08 06:10:34,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3716 states to 3716 states and 4838 transitions. [2025-03-08 06:10:34,870 INFO L78 Accepts]: Start accepts. Automaton has 3716 states and 4838 transitions. Word has length 205 [2025-03-08 06:10:34,871 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 06:10:34,871 INFO L471 AbstractCegarLoop]: Abstraction has 3716 states and 4838 transitions. [2025-03-08 06:10:34,871 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 45.5) internal successors, (182), 5 states have internal predecessors, (182), 4 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (7), 2 states have call predecessors, (7), 3 states have call successors, (7) [2025-03-08 06:10:34,871 INFO L276 IsEmpty]: Start isEmpty. Operand 3716 states and 4838 transitions. [2025-03-08 06:10:34,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2025-03-08 06:10:34,876 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 06:10:34,876 INFO L218 NwaCegarLoop]: trace histogram [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] [2025-03-08 06:10:34,876 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-03-08 06:10:34,876 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 06:10:34,877 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 06:10:34,877 INFO L85 PathProgramCache]: Analyzing trace with hash 972434935, now seen corresponding path program 1 times [2025-03-08 06:10:34,877 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 06:10:34,877 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1977393399] [2025-03-08 06:10:34,877 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 06:10:34,877 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 06:10:35,256 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 208 statements into 1 equivalence classes. [2025-03-08 06:10:35,327 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 208 of 208 statements. [2025-03-08 06:10:35,327 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 06:10:35,327 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 06:10:35,745 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-03-08 06:10:35,745 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 06:10:35,745 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1977393399] [2025-03-08 06:10:35,745 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1977393399] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-08 06:10:35,746 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1297315003] [2025-03-08 06:10:35,746 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 06:10:35,746 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 06:10:35,746 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 06:10:35,748 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-08 06:10:35,750 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-03-08 06:10:36,535 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 208 statements into 1 equivalence classes. [2025-03-08 06:10:36,798 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 208 of 208 statements. [2025-03-08 06:10:36,799 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 06:10:36,799 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 06:10:36,811 INFO L256 TraceCheckSpWp]: Trace formula consists of 2846 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-03-08 06:10:36,820 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-08 06:10:36,922 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2025-03-08 06:10:36,923 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-08 06:10:36,923 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1297315003] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 06:10:36,923 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-08 06:10:36,923 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [6] total 8 [2025-03-08 06:10:36,923 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1716732754] [2025-03-08 06:10:36,923 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 06:10:36,923 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-08 06:10:36,923 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 06:10:36,926 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-08 06:10:36,926 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2025-03-08 06:10:36,926 INFO L87 Difference]: Start difference. First operand 3716 states and 4838 transitions. Second operand has 5 states, 5 states have (on average 37.0) internal successors, (185), 5 states have internal predecessors, (185), 3 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (8), 2 states have call predecessors, (8), 3 states have call successors, (8) [2025-03-08 06:10:38,568 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 06:10:38,568 INFO L93 Difference]: Finished difference Result 7664 states and 9961 transitions. [2025-03-08 06:10:38,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-08 06:10:38,569 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 37.0) internal successors, (185), 5 states have internal predecessors, (185), 3 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (8), 2 states have call predecessors, (8), 3 states have call successors, (8) Word has length 208 [2025-03-08 06:10:38,569 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 06:10:38,591 INFO L225 Difference]: With dead ends: 7664 [2025-03-08 06:10:38,591 INFO L226 Difference]: Without dead ends: 3839 [2025-03-08 06:10:38,603 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 214 GetRequests, 207 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2025-03-08 06:10:38,605 INFO L435 NwaCegarLoop]: 3588 mSDtfsCounter, 1465 mSDsluCounter, 8380 mSDsCounter, 0 mSdLazyCounter, 1603 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1465 SdHoareTripleChecker+Valid, 11968 SdHoareTripleChecker+Invalid, 1605 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1603 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2025-03-08 06:10:38,605 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1465 Valid, 11968 Invalid, 1605 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1603 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2025-03-08 06:10:38,610 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3839 states. [2025-03-08 06:10:38,809 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3839 to 3703. [2025-03-08 06:10:38,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3703 states, 3015 states have (on average 1.2202321724709784) internal successors, (3679), 3060 states have internal predecessors, (3679), 568 states have call successors, (568), 119 states have call predecessors, (568), 119 states have return successors, (567), 547 states have call predecessors, (567), 567 states have call successors, (567) [2025-03-08 06:10:38,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3703 states to 3703 states and 4814 transitions. [2025-03-08 06:10:38,854 INFO L78 Accepts]: Start accepts. Automaton has 3703 states and 4814 transitions. Word has length 208 [2025-03-08 06:10:38,854 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 06:10:38,854 INFO L471 AbstractCegarLoop]: Abstraction has 3703 states and 4814 transitions. [2025-03-08 06:10:38,854 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 37.0) internal successors, (185), 5 states have internal predecessors, (185), 3 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (8), 2 states have call predecessors, (8), 3 states have call successors, (8) [2025-03-08 06:10:38,854 INFO L276 IsEmpty]: Start isEmpty. Operand 3703 states and 4814 transitions. [2025-03-08 06:10:38,861 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 210 [2025-03-08 06:10:38,861 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 06:10:38,861 INFO L218 NwaCegarLoop]: trace histogram [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] [2025-03-08 06:10:38,874 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2025-03-08 06:10:39,066 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 06:10:39,066 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 06:10:39,067 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 06:10:39,067 INFO L85 PathProgramCache]: Analyzing trace with hash 163357529, now seen corresponding path program 1 times [2025-03-08 06:10:39,067 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 06:10:39,067 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [283148702] [2025-03-08 06:10:39,067 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 06:10:39,067 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 06:10:39,403 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 209 statements into 1 equivalence classes. [2025-03-08 06:10:39,452 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 209 of 209 statements. [2025-03-08 06:10:39,453 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 06:10:39,453 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 06:10:39,842 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-03-08 06:10:39,843 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 06:10:39,843 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [283148702] [2025-03-08 06:10:39,843 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [283148702] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-08 06:10:39,843 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [73272799] [2025-03-08 06:10:39,843 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 06:10:39,843 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 06:10:39,843 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 06:10:39,857 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-08 06:10:39,859 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-03-08 06:10:40,744 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 209 statements into 1 equivalence classes. [2025-03-08 06:10:41,024 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 209 of 209 statements. [2025-03-08 06:10:41,025 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 06:10:41,025 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 06:10:41,035 INFO L256 TraceCheckSpWp]: Trace formula consists of 2848 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-03-08 06:10:41,042 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-08 06:10:41,138 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2025-03-08 06:10:41,138 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-08 06:10:41,138 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [73272799] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 06:10:41,138 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-08 06:10:41,138 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [6] total 8 [2025-03-08 06:10:41,138 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [292857245] [2025-03-08 06:10:41,138 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 06:10:41,138 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-08 06:10:41,138 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 06:10:41,139 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-08 06:10:41,139 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2025-03-08 06:10:41,139 INFO L87 Difference]: Start difference. First operand 3703 states and 4814 transitions. Second operand has 5 states, 5 states have (on average 37.4) internal successors, (187), 5 states have internal predecessors, (187), 3 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (8), 2 states have call predecessors, (8), 3 states have call successors, (8) [2025-03-08 06:10:42,257 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 06:10:42,257 INFO L93 Difference]: Finished difference Result 7595 states and 9856 transitions. [2025-03-08 06:10:42,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-08 06:10:42,258 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 37.4) internal successors, (187), 5 states have internal predecessors, (187), 3 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (8), 2 states have call predecessors, (8), 3 states have call successors, (8) Word has length 209 [2025-03-08 06:10:42,258 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 06:10:42,278 INFO L225 Difference]: With dead ends: 7595 [2025-03-08 06:10:42,278 INFO L226 Difference]: Without dead ends: 3831 [2025-03-08 06:10:42,289 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 215 GetRequests, 208 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2025-03-08 06:10:42,290 INFO L435 NwaCegarLoop]: 3566 mSDtfsCounter, 1170 mSDsluCounter, 6431 mSDsCounter, 0 mSdLazyCounter, 1045 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1170 SdHoareTripleChecker+Valid, 9997 SdHoareTripleChecker+Invalid, 1047 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1045 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2025-03-08 06:10:42,290 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1170 Valid, 9997 Invalid, 1047 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1045 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2025-03-08 06:10:42,294 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3831 states. [2025-03-08 06:10:42,371 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3831 to 3693. [2025-03-08 06:10:42,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3693 states, 3009 states have (on average 1.2190096377534065) internal successors, (3668), 3054 states have internal predecessors, (3668), 564 states have call successors, (564), 119 states have call predecessors, (564), 119 states have return successors, (563), 543 states have call predecessors, (563), 563 states have call successors, (563) [2025-03-08 06:10:42,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3693 states to 3693 states and 4795 transitions. [2025-03-08 06:10:42,393 INFO L78 Accepts]: Start accepts. Automaton has 3693 states and 4795 transitions. Word has length 209 [2025-03-08 06:10:42,394 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 06:10:42,394 INFO L471 AbstractCegarLoop]: Abstraction has 3693 states and 4795 transitions. [2025-03-08 06:10:42,394 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 37.4) internal successors, (187), 5 states have internal predecessors, (187), 3 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (8), 2 states have call predecessors, (8), 3 states have call successors, (8) [2025-03-08 06:10:42,394 INFO L276 IsEmpty]: Start isEmpty. Operand 3693 states and 4795 transitions. [2025-03-08 06:10:42,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2025-03-08 06:10:42,397 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 06:10:42,398 INFO L218 NwaCegarLoop]: trace histogram [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] [2025-03-08 06:10:42,411 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2025-03-08 06:10:42,598 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2025-03-08 06:10:42,598 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 06:10:42,599 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 06:10:42,599 INFO L85 PathProgramCache]: Analyzing trace with hash 1100471382, now seen corresponding path program 1 times [2025-03-08 06:10:42,599 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 06:10:42,599 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [327775839] [2025-03-08 06:10:42,599 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 06:10:42,599 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 06:10:42,948 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 210 statements into 1 equivalence classes. [2025-03-08 06:10:43,000 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 210 of 210 statements. [2025-03-08 06:10:43,000 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 06:10:43,000 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 06:10:43,379 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2025-03-08 06:10:43,379 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 06:10:43,379 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [327775839] [2025-03-08 06:10:43,379 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [327775839] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-08 06:10:43,379 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [828351355] [2025-03-08 06:10:43,379 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 06:10:43,379 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 06:10:43,380 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 06:10:43,381 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-08 06:10:43,383 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2025-03-08 06:10:44,144 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 210 statements into 1 equivalence classes. [2025-03-08 06:10:44,351 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 210 of 210 statements. [2025-03-08 06:10:44,351 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 06:10:44,351 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 06:10:44,361 INFO L256 TraceCheckSpWp]: Trace formula consists of 2850 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-03-08 06:10:44,366 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-08 06:10:44,441 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-03-08 06:10:44,441 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-08 06:10:44,442 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [828351355] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 06:10:44,442 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-08 06:10:44,442 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [6] total 8 [2025-03-08 06:10:44,442 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [571858331] [2025-03-08 06:10:44,442 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 06:10:44,442 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-08 06:10:44,442 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 06:10:44,443 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-08 06:10:44,443 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2025-03-08 06:10:44,443 INFO L87 Difference]: Start difference. First operand 3693 states and 4795 transitions. Second operand has 5 states, 5 states have (on average 37.8) internal successors, (189), 5 states have internal predecessors, (189), 3 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (8), 2 states have call predecessors, (8), 3 states have call successors, (8) [2025-03-08 06:10:45,730 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 06:10:45,730 INFO L93 Difference]: Finished difference Result 8184 states and 10623 transitions. [2025-03-08 06:10:45,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-08 06:10:45,730 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 37.8) internal successors, (189), 5 states have internal predecessors, (189), 3 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (8), 2 states have call predecessors, (8), 3 states have call successors, (8) Word has length 210 [2025-03-08 06:10:45,731 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 06:10:45,753 INFO L225 Difference]: With dead ends: 8184 [2025-03-08 06:10:45,754 INFO L226 Difference]: Without dead ends: 4496 [2025-03-08 06:10:45,768 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 216 GetRequests, 209 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2025-03-08 06:10:45,769 INFO L435 NwaCegarLoop]: 3916 mSDtfsCounter, 1737 mSDsluCounter, 9135 mSDsCounter, 0 mSdLazyCounter, 1634 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1737 SdHoareTripleChecker+Valid, 13051 SdHoareTripleChecker+Invalid, 1637 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1634 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2025-03-08 06:10:45,769 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1737 Valid, 13051 Invalid, 1637 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1634 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2025-03-08 06:10:45,774 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4496 states. [2025-03-08 06:10:45,930 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4496 to 4167. [2025-03-08 06:10:45,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4167 states, 3351 states have (on average 1.23455684870188) internal successors, (4137), 3407 states have internal predecessors, (4137), 672 states have call successors, (672), 142 states have call predecessors, (672), 143 states have return successors, (672), 647 states have call predecessors, (672), 671 states have call successors, (672) [2025-03-08 06:10:45,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4167 states to 4167 states and 5481 transitions. [2025-03-08 06:10:45,957 INFO L78 Accepts]: Start accepts. Automaton has 4167 states and 5481 transitions. Word has length 210 [2025-03-08 06:10:45,958 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 06:10:45,958 INFO L471 AbstractCegarLoop]: Abstraction has 4167 states and 5481 transitions. [2025-03-08 06:10:45,958 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 37.8) internal successors, (189), 5 states have internal predecessors, (189), 3 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (8), 2 states have call predecessors, (8), 3 states have call successors, (8) [2025-03-08 06:10:45,958 INFO L276 IsEmpty]: Start isEmpty. Operand 4167 states and 5481 transitions. [2025-03-08 06:10:45,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2025-03-08 06:10:45,964 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 06:10:45,965 INFO L218 NwaCegarLoop]: trace histogram [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] [2025-03-08 06:10:45,977 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2025-03-08 06:10:46,165 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 06:10:46,166 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 06:10:46,167 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 06:10:46,170 INFO L85 PathProgramCache]: Analyzing trace with hash 1087478560, now seen corresponding path program 1 times [2025-03-08 06:10:46,170 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 06:10:46,170 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1800825518] [2025-03-08 06:10:46,171 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 06:10:46,171 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 06:10:46,509 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 210 statements into 1 equivalence classes. [2025-03-08 06:10:46,550 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 210 of 210 statements. [2025-03-08 06:10:46,550 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 06:10:46,550 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 06:10:46,895 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-03-08 06:10:46,895 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 06:10:46,895 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1800825518] [2025-03-08 06:10:46,895 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1800825518] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-08 06:10:46,895 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1813313471] [2025-03-08 06:10:46,895 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 06:10:46,896 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 06:10:46,896 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 06:10:46,898 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-08 06:10:46,899 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2025-03-08 06:10:47,699 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 210 statements into 1 equivalence classes. [2025-03-08 06:10:47,899 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 210 of 210 statements. [2025-03-08 06:10:47,899 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 06:10:47,899 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 06:10:47,909 INFO L256 TraceCheckSpWp]: Trace formula consists of 2848 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-03-08 06:10:47,914 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-08 06:10:47,985 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2025-03-08 06:10:47,985 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-08 06:10:47,985 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1813313471] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 06:10:47,985 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-08 06:10:47,985 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [6] total 8 [2025-03-08 06:10:47,985 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1520695039] [2025-03-08 06:10:47,985 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 06:10:47,986 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-08 06:10:47,986 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 06:10:47,986 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-08 06:10:47,986 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2025-03-08 06:10:47,986 INFO L87 Difference]: Start difference. First operand 4167 states and 5481 transitions. Second operand has 5 states, 5 states have (on average 38.0) internal successors, (190), 5 states have internal predecessors, (190), 3 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (8), 2 states have call predecessors, (8), 3 states have call successors, (8) [2025-03-08 06:10:48,987 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 06:10:48,988 INFO L93 Difference]: Finished difference Result 8331 states and 10964 transitions. [2025-03-08 06:10:48,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-08 06:10:48,988 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 38.0) internal successors, (190), 5 states have internal predecessors, (190), 3 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (8), 2 states have call predecessors, (8), 3 states have call successors, (8) Word has length 210 [2025-03-08 06:10:48,988 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 06:10:49,010 INFO L225 Difference]: With dead ends: 8331 [2025-03-08 06:10:49,010 INFO L226 Difference]: Without dead ends: 4169 [2025-03-08 06:10:49,022 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 216 GetRequests, 209 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2025-03-08 06:10:49,023 INFO L435 NwaCegarLoop]: 2937 mSDtfsCounter, 1039 mSDsluCounter, 5737 mSDsCounter, 0 mSdLazyCounter, 1016 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1039 SdHoareTripleChecker+Valid, 8674 SdHoareTripleChecker+Invalid, 1018 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1016 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2025-03-08 06:10:49,023 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1039 Valid, 8674 Invalid, 1018 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1016 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2025-03-08 06:10:49,027 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4169 states. [2025-03-08 06:10:49,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4169 to 4167. [2025-03-08 06:10:49,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4167 states, 3351 states have (on average 1.2342584303193076) internal successors, (4136), 3407 states have internal predecessors, (4136), 672 states have call successors, (672), 142 states have call predecessors, (672), 143 states have return successors, (672), 647 states have call predecessors, (672), 671 states have call successors, (672) [2025-03-08 06:10:49,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4167 states to 4167 states and 5480 transitions. [2025-03-08 06:10:49,149 INFO L78 Accepts]: Start accepts. Automaton has 4167 states and 5480 transitions. Word has length 210 [2025-03-08 06:10:49,149 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 06:10:49,149 INFO L471 AbstractCegarLoop]: Abstraction has 4167 states and 5480 transitions. [2025-03-08 06:10:49,150 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 38.0) internal successors, (190), 5 states have internal predecessors, (190), 3 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (8), 2 states have call predecessors, (8), 3 states have call successors, (8) [2025-03-08 06:10:49,150 INFO L276 IsEmpty]: Start isEmpty. Operand 4167 states and 5480 transitions. [2025-03-08 06:10:49,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 221 [2025-03-08 06:10:49,155 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 06:10:49,156 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 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] [2025-03-08 06:10:49,169 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2025-03-08 06:10:49,356 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 06:10:49,356 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 06:10:49,356 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 06:10:49,357 INFO L85 PathProgramCache]: Analyzing trace with hash 249515766, now seen corresponding path program 1 times [2025-03-08 06:10:49,357 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 06:10:49,357 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [692382386] [2025-03-08 06:10:49,357 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 06:10:49,357 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 06:10:49,659 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 220 statements into 1 equivalence classes. [2025-03-08 06:10:49,696 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 220 of 220 statements. [2025-03-08 06:10:49,697 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 06:10:49,697 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 06:10:50,092 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2025-03-08 06:10:50,092 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 06:10:50,092 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [692382386] [2025-03-08 06:10:50,092 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [692382386] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 06:10:50,092 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 06:10:50,092 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-03-08 06:10:50,092 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1324029027] [2025-03-08 06:10:50,092 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 06:10:50,092 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-08 06:10:50,092 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 06:10:50,093 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-08 06:10:50,093 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2025-03-08 06:10:50,093 INFO L87 Difference]: Start difference. First operand 4167 states and 5480 transitions. Second operand has 6 states, 6 states have (on average 30.833333333333332) internal successors, (185), 6 states have internal predecessors, (185), 3 states have call successors, (11), 2 states have call predecessors, (11), 4 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2025-03-08 06:10:52,025 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 06:10:52,025 INFO L93 Difference]: Finished difference Result 7849 states and 10260 transitions. [2025-03-08 06:10:52,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-08 06:10:52,025 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 30.833333333333332) internal successors, (185), 6 states have internal predecessors, (185), 3 states have call successors, (11), 2 states have call predecessors, (11), 4 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) Word has length 220 [2025-03-08 06:10:52,026 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 06:10:52,045 INFO L225 Difference]: With dead ends: 7849 [2025-03-08 06:10:52,045 INFO L226 Difference]: Without dead ends: 3687 [2025-03-08 06:10:52,059 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2025-03-08 06:10:52,060 INFO L435 NwaCegarLoop]: 3480 mSDtfsCounter, 6644 mSDsluCounter, 2639 mSDsCounter, 0 mSdLazyCounter, 1389 mSolverCounterSat, 845 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6644 SdHoareTripleChecker+Valid, 6119 SdHoareTripleChecker+Invalid, 2234 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 845 IncrementalHoareTripleChecker+Valid, 1389 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2025-03-08 06:10:52,060 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [6644 Valid, 6119 Invalid, 2234 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [845 Valid, 1389 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2025-03-08 06:10:52,064 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3687 states. [2025-03-08 06:10:52,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3687 to 3685. [2025-03-08 06:10:52,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3685 states, 3004 states have (on average 1.2173768308921438) internal successors, (3657), 3049 states have internal predecessors, (3657), 561 states have call successors, (561), 119 states have call predecessors, (561), 119 states have return successors, (560), 540 states have call predecessors, (560), 560 states have call successors, (560) [2025-03-08 06:10:52,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3685 states to 3685 states and 4778 transitions. [2025-03-08 06:10:52,157 INFO L78 Accepts]: Start accepts. Automaton has 3685 states and 4778 transitions. Word has length 220 [2025-03-08 06:10:52,158 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 06:10:52,158 INFO L471 AbstractCegarLoop]: Abstraction has 3685 states and 4778 transitions. [2025-03-08 06:10:52,158 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 30.833333333333332) internal successors, (185), 6 states have internal predecessors, (185), 3 states have call successors, (11), 2 states have call predecessors, (11), 4 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2025-03-08 06:10:52,158 INFO L276 IsEmpty]: Start isEmpty. Operand 3685 states and 4778 transitions. [2025-03-08 06:10:52,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 221 [2025-03-08 06:10:52,161 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 06:10:52,161 INFO L218 NwaCegarLoop]: trace histogram [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] [2025-03-08 06:10:52,161 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2025-03-08 06:10:52,162 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 06:10:52,162 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 06:10:52,162 INFO L85 PathProgramCache]: Analyzing trace with hash 1408801088, now seen corresponding path program 1 times [2025-03-08 06:10:52,162 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 06:10:52,162 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2074271819] [2025-03-08 06:10:52,162 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 06:10:52,162 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 06:10:52,519 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 220 statements into 1 equivalence classes. [2025-03-08 06:10:52,570 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 220 of 220 statements. [2025-03-08 06:10:52,570 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 06:10:52,570 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 06:10:52,917 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2025-03-08 06:10:52,917 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 06:10:52,917 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2074271819] [2025-03-08 06:10:52,918 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2074271819] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-08 06:10:52,918 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1483946088] [2025-03-08 06:10:52,918 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 06:10:52,918 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 06:10:52,918 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 06:10:52,920 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-08 06:10:52,921 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2025-03-08 06:10:53,788 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 220 statements into 1 equivalence classes. [2025-03-08 06:10:53,991 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 220 of 220 statements. [2025-03-08 06:10:53,991 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 06:10:53,991 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 06:10:54,001 INFO L256 TraceCheckSpWp]: Trace formula consists of 2876 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-03-08 06:10:54,005 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-08 06:10:54,064 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2025-03-08 06:10:54,064 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-08 06:10:54,064 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1483946088] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 06:10:54,065 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-08 06:10:54,065 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [6] total 7 [2025-03-08 06:10:54,065 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [981024117] [2025-03-08 06:10:54,065 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 06:10:54,065 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-08 06:10:54,065 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 06:10:54,065 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-08 06:10:54,065 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2025-03-08 06:10:54,066 INFO L87 Difference]: Start difference. First operand 3685 states and 4778 transitions. Second operand has 5 states, 5 states have (on average 38.4) internal successors, (192), 5 states have internal predecessors, (192), 3 states have call successors, (11), 3 states have call predecessors, (11), 2 states have return successors, (9), 2 states have call predecessors, (9), 3 states have call successors, (9) [2025-03-08 06:10:55,188 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 06:10:55,188 INFO L93 Difference]: Finished difference Result 7365 states and 9555 transitions. [2025-03-08 06:10:55,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-08 06:10:55,188 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 38.4) internal successors, (192), 5 states have internal predecessors, (192), 3 states have call successors, (11), 3 states have call predecessors, (11), 2 states have return successors, (9), 2 states have call predecessors, (9), 3 states have call successors, (9) Word has length 220 [2025-03-08 06:10:55,189 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 06:10:55,204 INFO L225 Difference]: With dead ends: 7365 [2025-03-08 06:10:55,204 INFO L226 Difference]: Without dead ends: 3685 [2025-03-08 06:10:55,214 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 225 GetRequests, 220 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2025-03-08 06:10:55,214 INFO L435 NwaCegarLoop]: 3054 mSDtfsCounter, 2498 mSDsluCounter, 4052 mSDsCounter, 0 mSdLazyCounter, 1091 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2498 SdHoareTripleChecker+Valid, 7106 SdHoareTripleChecker+Invalid, 1097 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 1091 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2025-03-08 06:10:55,214 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2498 Valid, 7106 Invalid, 1097 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 1091 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2025-03-08 06:10:55,218 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3685 states. [2025-03-08 06:10:55,291 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3685 to 3683. [2025-03-08 06:10:55,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3683 states, 3003 states have (on average 1.217116217116217) internal successors, (3655), 3048 states have internal predecessors, (3655), 560 states have call successors, (560), 119 states have call predecessors, (560), 119 states have return successors, (559), 539 states have call predecessors, (559), 559 states have call successors, (559) [2025-03-08 06:10:55,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3683 states to 3683 states and 4774 transitions. [2025-03-08 06:10:55,306 INFO L78 Accepts]: Start accepts. Automaton has 3683 states and 4774 transitions. Word has length 220 [2025-03-08 06:10:55,306 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 06:10:55,306 INFO L471 AbstractCegarLoop]: Abstraction has 3683 states and 4774 transitions. [2025-03-08 06:10:55,306 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 38.4) internal successors, (192), 5 states have internal predecessors, (192), 3 states have call successors, (11), 3 states have call predecessors, (11), 2 states have return successors, (9), 2 states have call predecessors, (9), 3 states have call successors, (9) [2025-03-08 06:10:55,307 INFO L276 IsEmpty]: Start isEmpty. Operand 3683 states and 4774 transitions. [2025-03-08 06:10:55,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 221 [2025-03-08 06:10:55,310 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 06:10:55,310 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 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] [2025-03-08 06:10:55,323 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2025-03-08 06:10:55,510 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2025-03-08 06:10:55,510 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 06:10:55,511 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 06:10:55,511 INFO L85 PathProgramCache]: Analyzing trace with hash 1590993722, now seen corresponding path program 1 times [2025-03-08 06:10:55,511 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 06:10:55,511 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1103397394] [2025-03-08 06:10:55,511 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 06:10:55,512 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 06:10:55,825 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 220 statements into 1 equivalence classes. [2025-03-08 06:10:55,860 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 220 of 220 statements. [2025-03-08 06:10:55,860 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 06:10:55,860 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 06:10:56,155 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2025-03-08 06:10:56,155 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 06:10:56,155 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1103397394] [2025-03-08 06:10:56,156 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1103397394] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 06:10:56,156 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 06:10:56,156 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-03-08 06:10:56,157 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1880393711] [2025-03-08 06:10:56,157 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 06:10:56,157 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-08 06:10:56,157 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 06:10:56,158 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-08 06:10:56,158 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2025-03-08 06:10:56,158 INFO L87 Difference]: Start difference. First operand 3683 states and 4774 transitions. Second operand has 6 states, 6 states have (on average 31.0) internal successors, (186), 6 states have internal predecessors, (186), 3 states have call successors, (11), 2 states have call predecessors, (11), 4 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2025-03-08 06:10:57,789 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 06:10:57,789 INFO L93 Difference]: Finished difference Result 7363 states and 9549 transitions. [2025-03-08 06:10:57,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-08 06:10:57,790 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 31.0) internal successors, (186), 6 states have internal predecessors, (186), 3 states have call successors, (11), 2 states have call predecessors, (11), 4 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) Word has length 220 [2025-03-08 06:10:57,790 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 06:10:57,808 INFO L225 Difference]: With dead ends: 7363 [2025-03-08 06:10:57,808 INFO L226 Difference]: Without dead ends: 3685 [2025-03-08 06:10:57,821 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2025-03-08 06:10:57,822 INFO L435 NwaCegarLoop]: 3382 mSDtfsCounter, 4422 mSDsluCounter, 3308 mSDsCounter, 0 mSdLazyCounter, 1631 mSolverCounterSat, 240 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4422 SdHoareTripleChecker+Valid, 6690 SdHoareTripleChecker+Invalid, 1871 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 240 IncrementalHoareTripleChecker+Valid, 1631 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2025-03-08 06:10:57,823 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4422 Valid, 6690 Invalid, 1871 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [240 Valid, 1631 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2025-03-08 06:10:57,829 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3685 states. [2025-03-08 06:10:57,973 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3685 to 3683. [2025-03-08 06:10:57,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3683 states, 3003 states have (on average 1.2167832167832169) internal successors, (3654), 3048 states have internal predecessors, (3654), 560 states have call successors, (560), 119 states have call predecessors, (560), 119 states have return successors, (559), 539 states have call predecessors, (559), 559 states have call successors, (559) [2025-03-08 06:10:57,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3683 states to 3683 states and 4773 transitions. [2025-03-08 06:10:57,997 INFO L78 Accepts]: Start accepts. Automaton has 3683 states and 4773 transitions. Word has length 220 [2025-03-08 06:10:57,998 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 06:10:57,998 INFO L471 AbstractCegarLoop]: Abstraction has 3683 states and 4773 transitions. [2025-03-08 06:10:57,998 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 31.0) internal successors, (186), 6 states have internal predecessors, (186), 3 states have call successors, (11), 2 states have call predecessors, (11), 4 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2025-03-08 06:10:57,998 INFO L276 IsEmpty]: Start isEmpty. Operand 3683 states and 4773 transitions. [2025-03-08 06:10:58,001 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2025-03-08 06:10:58,002 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 06:10:58,002 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 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] [2025-03-08 06:10:58,002 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2025-03-08 06:10:58,002 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 06:10:58,003 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 06:10:58,003 INFO L85 PathProgramCache]: Analyzing trace with hash -1907858860, now seen corresponding path program 1 times [2025-03-08 06:10:58,003 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 06:10:58,003 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [816834525] [2025-03-08 06:10:58,003 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 06:10:58,003 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 06:10:58,322 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 223 statements into 1 equivalence classes. [2025-03-08 06:10:58,364 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 223 of 223 statements. [2025-03-08 06:10:58,365 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 06:10:58,365 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 06:10:58,660 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2025-03-08 06:10:58,660 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 06:10:58,660 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [816834525] [2025-03-08 06:10:58,660 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [816834525] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 06:10:58,660 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 06:10:58,660 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-03-08 06:10:58,660 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [209957880] [2025-03-08 06:10:58,660 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 06:10:58,660 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-08 06:10:58,660 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 06:10:58,661 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-08 06:10:58,661 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2025-03-08 06:10:58,661 INFO L87 Difference]: Start difference. First operand 3683 states and 4773 transitions. Second operand has 6 states, 6 states have (on average 31.166666666666668) internal successors, (187), 6 states have internal predecessors, (187), 4 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) [2025-03-08 06:11:00,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 06:11:00,379 INFO L93 Difference]: Finished difference Result 7495 states and 9695 transitions. [2025-03-08 06:11:00,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-08 06:11:00,380 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 31.166666666666668) internal successors, (187), 6 states have internal predecessors, (187), 4 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) Word has length 223 [2025-03-08 06:11:00,380 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 06:11:00,394 INFO L225 Difference]: With dead ends: 7495 [2025-03-08 06:11:00,394 INFO L226 Difference]: Without dead ends: 3817 [2025-03-08 06:11:00,405 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2025-03-08 06:11:00,405 INFO L435 NwaCegarLoop]: 3615 mSDtfsCounter, 5806 mSDsluCounter, 4568 mSDsCounter, 0 mSdLazyCounter, 2029 mSolverCounterSat, 482 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5806 SdHoareTripleChecker+Valid, 8183 SdHoareTripleChecker+Invalid, 2511 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 482 IncrementalHoareTripleChecker+Valid, 2029 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2025-03-08 06:11:00,406 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5806 Valid, 8183 Invalid, 2511 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [482 Valid, 2029 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2025-03-08 06:11:00,409 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3817 states. [2025-03-08 06:11:00,492 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3817 to 3681. [2025-03-08 06:11:00,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3681 states, 3002 states have (on average 1.2165223184543636) internal successors, (3652), 3047 states have internal predecessors, (3652), 559 states have call successors, (559), 119 states have call predecessors, (559), 119 states have return successors, (558), 538 states have call predecessors, (558), 558 states have call successors, (558) [2025-03-08 06:11:00,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3681 states to 3681 states and 4769 transitions. [2025-03-08 06:11:00,508 INFO L78 Accepts]: Start accepts. Automaton has 3681 states and 4769 transitions. Word has length 223 [2025-03-08 06:11:00,509 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 06:11:00,509 INFO L471 AbstractCegarLoop]: Abstraction has 3681 states and 4769 transitions. [2025-03-08 06:11:00,509 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 31.166666666666668) internal successors, (187), 6 states have internal predecessors, (187), 4 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) [2025-03-08 06:11:00,509 INFO L276 IsEmpty]: Start isEmpty. Operand 3681 states and 4769 transitions. [2025-03-08 06:11:00,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 225 [2025-03-08 06:11:00,511 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 06:11:00,512 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 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] [2025-03-08 06:11:00,512 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2025-03-08 06:11:00,512 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 06:11:00,512 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 06:11:00,512 INFO L85 PathProgramCache]: Analyzing trace with hash -1205632504, now seen corresponding path program 1 times [2025-03-08 06:11:00,512 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 06:11:00,512 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [970472348] [2025-03-08 06:11:00,513 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 06:11:00,513 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 06:11:00,782 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 224 statements into 1 equivalence classes. [2025-03-08 06:11:00,822 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 224 of 224 statements. [2025-03-08 06:11:00,823 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 06:11:00,823 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 06:11:01,182 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2025-03-08 06:11:01,183 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 06:11:01,183 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [970472348] [2025-03-08 06:11:01,183 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [970472348] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 06:11:01,183 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 06:11:01,183 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-03-08 06:11:01,183 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [47483099] [2025-03-08 06:11:01,183 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 06:11:01,184 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-08 06:11:01,184 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 06:11:01,184 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-08 06:11:01,184 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2025-03-08 06:11:01,185 INFO L87 Difference]: Start difference. First operand 3681 states and 4769 transitions. Second operand has 6 states, 6 states have (on average 31.333333333333332) internal successors, (188), 6 states have internal predecessors, (188), 4 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) [2025-03-08 06:11:02,854 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 06:11:02,854 INFO L93 Difference]: Finished difference Result 7491 states and 9687 transitions. [2025-03-08 06:11:02,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-08 06:11:02,855 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 31.333333333333332) internal successors, (188), 6 states have internal predecessors, (188), 4 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) Word has length 224 [2025-03-08 06:11:02,855 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 06:11:02,870 INFO L225 Difference]: With dead ends: 7491 [2025-03-08 06:11:02,870 INFO L226 Difference]: Without dead ends: 3815 [2025-03-08 06:11:02,881 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2025-03-08 06:11:02,881 INFO L435 NwaCegarLoop]: 3493 mSDtfsCounter, 3717 mSDsluCounter, 5424 mSDsCounter, 0 mSdLazyCounter, 2295 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3717 SdHoareTripleChecker+Valid, 8917 SdHoareTripleChecker+Invalid, 2305 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 2295 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2025-03-08 06:11:02,881 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3717 Valid, 8917 Invalid, 2305 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 2295 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2025-03-08 06:11:02,885 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3815 states. [2025-03-08 06:11:02,963 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3815 to 3677. [2025-03-08 06:11:02,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3677 states, 3000 states have (on average 1.216) internal successors, (3648), 3045 states have internal predecessors, (3648), 557 states have call successors, (557), 119 states have call predecessors, (557), 119 states have return successors, (556), 536 states have call predecessors, (556), 556 states have call successors, (556) [2025-03-08 06:11:02,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3677 states to 3677 states and 4761 transitions. [2025-03-08 06:11:02,981 INFO L78 Accepts]: Start accepts. Automaton has 3677 states and 4761 transitions. Word has length 224 [2025-03-08 06:11:02,982 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 06:11:02,982 INFO L471 AbstractCegarLoop]: Abstraction has 3677 states and 4761 transitions. [2025-03-08 06:11:02,982 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 31.333333333333332) internal successors, (188), 6 states have internal predecessors, (188), 4 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) [2025-03-08 06:11:02,982 INFO L276 IsEmpty]: Start isEmpty. Operand 3677 states and 4761 transitions. [2025-03-08 06:11:02,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 226 [2025-03-08 06:11:02,985 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 06:11:02,985 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 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] [2025-03-08 06:11:02,985 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2025-03-08 06:11:02,985 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 06:11:02,987 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 06:11:02,988 INFO L85 PathProgramCache]: Analyzing trace with hash -97683213, now seen corresponding path program 1 times [2025-03-08 06:11:02,988 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 06:11:02,988 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1065283007] [2025-03-08 06:11:02,988 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 06:11:02,988 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 06:11:03,289 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 225 statements into 1 equivalence classes. [2025-03-08 06:11:03,327 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 225 of 225 statements. [2025-03-08 06:11:03,328 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 06:11:03,328 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 06:11:03,663 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2025-03-08 06:11:03,663 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 06:11:03,663 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1065283007] [2025-03-08 06:11:03,663 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1065283007] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 06:11:03,663 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 06:11:03,663 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-03-08 06:11:03,664 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1314880841] [2025-03-08 06:11:03,664 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 06:11:03,664 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-08 06:11:03,664 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 06:11:03,664 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-08 06:11:03,664 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2025-03-08 06:11:03,665 INFO L87 Difference]: Start difference. First operand 3677 states and 4761 transitions. Second operand has 6 states, 6 states have (on average 31.5) internal successors, (189), 6 states have internal predecessors, (189), 4 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) [2025-03-08 06:11:05,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 06:11:05,278 INFO L93 Difference]: Finished difference Result 7347 states and 9519 transitions. [2025-03-08 06:11:05,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-08 06:11:05,278 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 31.5) internal successors, (189), 6 states have internal predecessors, (189), 4 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) Word has length 225 [2025-03-08 06:11:05,279 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 06:11:05,294 INFO L225 Difference]: With dead ends: 7347 [2025-03-08 06:11:05,294 INFO L226 Difference]: Without dead ends: 3675 [2025-03-08 06:11:05,304 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2025-03-08 06:11:05,305 INFO L435 NwaCegarLoop]: 3467 mSDtfsCounter, 4651 mSDsluCounter, 3448 mSDsCounter, 0 mSdLazyCounter, 1798 mSolverCounterSat, 311 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4651 SdHoareTripleChecker+Valid, 6915 SdHoareTripleChecker+Invalid, 2109 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 311 IncrementalHoareTripleChecker+Valid, 1798 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2025-03-08 06:11:05,305 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4651 Valid, 6915 Invalid, 2109 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [311 Valid, 1798 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2025-03-08 06:11:05,308 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3675 states. [2025-03-08 06:11:05,384 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3675 to 3673. [2025-03-08 06:11:05,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3673 states, 2998 states have (on average 1.2154769846564377) internal successors, (3644), 3043 states have internal predecessors, (3644), 555 states have call successors, (555), 119 states have call predecessors, (555), 119 states have return successors, (554), 534 states have call predecessors, (554), 554 states have call successors, (554) [2025-03-08 06:11:05,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3673 states to 3673 states and 4753 transitions. [2025-03-08 06:11:05,400 INFO L78 Accepts]: Start accepts. Automaton has 3673 states and 4753 transitions. Word has length 225 [2025-03-08 06:11:05,401 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 06:11:05,401 INFO L471 AbstractCegarLoop]: Abstraction has 3673 states and 4753 transitions. [2025-03-08 06:11:05,401 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 31.5) internal successors, (189), 6 states have internal predecessors, (189), 4 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) [2025-03-08 06:11:05,401 INFO L276 IsEmpty]: Start isEmpty. Operand 3673 states and 4753 transitions. [2025-03-08 06:11:05,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 226 [2025-03-08 06:11:05,404 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 06:11:05,405 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 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] [2025-03-08 06:11:05,405 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2025-03-08 06:11:05,405 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 06:11:05,405 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 06:11:05,405 INFO L85 PathProgramCache]: Analyzing trace with hash 857538093, now seen corresponding path program 1 times [2025-03-08 06:11:05,405 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 06:11:05,405 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1525064558] [2025-03-08 06:11:05,405 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 06:11:05,406 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 06:11:05,843 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 225 statements into 1 equivalence classes. [2025-03-08 06:11:05,896 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 225 of 225 statements. [2025-03-08 06:11:05,896 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 06:11:05,896 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 06:11:06,204 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2025-03-08 06:11:06,204 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 06:11:06,204 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1525064558] [2025-03-08 06:11:06,204 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1525064558] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 06:11:06,204 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 06:11:06,205 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-03-08 06:11:06,205 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1904753669] [2025-03-08 06:11:06,205 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 06:11:06,205 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-08 06:11:06,205 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 06:11:06,206 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-08 06:11:06,206 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2025-03-08 06:11:06,206 INFO L87 Difference]: Start difference. First operand 3673 states and 4753 transitions. Second operand has 6 states, 6 states have (on average 31.166666666666668) internal successors, (187), 6 states have internal predecessors, (187), 3 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2025-03-08 06:11:07,693 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 06:11:07,693 INFO L93 Difference]: Finished difference Result 7343 states and 9507 transitions. [2025-03-08 06:11:07,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-08 06:11:07,694 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 31.166666666666668) internal successors, (187), 6 states have internal predecessors, (187), 3 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) Word has length 225 [2025-03-08 06:11:07,694 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 06:11:07,709 INFO L225 Difference]: With dead ends: 7343 [2025-03-08 06:11:07,709 INFO L226 Difference]: Without dead ends: 3675 [2025-03-08 06:11:07,720 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2025-03-08 06:11:07,720 INFO L435 NwaCegarLoop]: 3361 mSDtfsCounter, 4389 mSDsluCounter, 3290 mSDsCounter, 0 mSdLazyCounter, 1615 mSolverCounterSat, 233 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4389 SdHoareTripleChecker+Valid, 6651 SdHoareTripleChecker+Invalid, 1848 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 233 IncrementalHoareTripleChecker+Valid, 1615 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2025-03-08 06:11:07,720 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4389 Valid, 6651 Invalid, 1848 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [233 Valid, 1615 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2025-03-08 06:11:07,724 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3675 states. [2025-03-08 06:11:07,798 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3675 to 3673. [2025-03-08 06:11:07,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3673 states, 2998 states have (on average 1.215143428952635) internal successors, (3643), 3043 states have internal predecessors, (3643), 555 states have call successors, (555), 119 states have call predecessors, (555), 119 states have return successors, (554), 534 states have call predecessors, (554), 554 states have call successors, (554) [2025-03-08 06:11:07,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3673 states to 3673 states and 4752 transitions. [2025-03-08 06:11:07,815 INFO L78 Accepts]: Start accepts. Automaton has 3673 states and 4752 transitions. Word has length 225 [2025-03-08 06:11:07,816 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 06:11:07,816 INFO L471 AbstractCegarLoop]: Abstraction has 3673 states and 4752 transitions. [2025-03-08 06:11:07,816 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 31.166666666666668) internal successors, (187), 6 states have internal predecessors, (187), 3 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2025-03-08 06:11:07,816 INFO L276 IsEmpty]: Start isEmpty. Operand 3673 states and 4752 transitions. [2025-03-08 06:11:07,818 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 229 [2025-03-08 06:11:07,818 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 06:11:07,818 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 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] [2025-03-08 06:11:07,818 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2025-03-08 06:11:07,818 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 06:11:07,819 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 06:11:07,819 INFO L85 PathProgramCache]: Analyzing trace with hash 875728409, now seen corresponding path program 1 times [2025-03-08 06:11:07,819 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 06:11:07,819 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1989631828] [2025-03-08 06:11:07,819 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 06:11:07,819 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 06:11:08,119 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 228 statements into 1 equivalence classes. [2025-03-08 06:11:08,155 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 228 of 228 statements. [2025-03-08 06:11:08,155 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 06:11:08,156 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 06:11:08,428 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2025-03-08 06:11:08,428 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 06:11:08,428 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1989631828] [2025-03-08 06:11:08,428 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1989631828] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 06:11:08,428 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 06:11:08,428 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-03-08 06:11:08,428 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [422732173] [2025-03-08 06:11:08,428 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 06:11:08,429 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-08 06:11:08,429 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 06:11:08,429 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-08 06:11:08,429 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2025-03-08 06:11:08,429 INFO L87 Difference]: Start difference. First operand 3673 states and 4752 transitions. Second operand has 6 states, 6 states have (on average 31.333333333333332) internal successors, (188), 6 states have internal predecessors, (188), 4 states have call successors, (13), 2 states have call predecessors, (13), 4 states have return successors, (11), 4 states have call predecessors, (11), 4 states have call successors, (11) [2025-03-08 06:11:10,068 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 06:11:10,068 INFO L93 Difference]: Finished difference Result 7475 states and 9653 transitions. [2025-03-08 06:11:10,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-08 06:11:10,068 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 31.333333333333332) internal successors, (188), 6 states have internal predecessors, (188), 4 states have call successors, (13), 2 states have call predecessors, (13), 4 states have return successors, (11), 4 states have call predecessors, (11), 4 states have call successors, (11) Word has length 228 [2025-03-08 06:11:10,069 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 06:11:10,085 INFO L225 Difference]: With dead ends: 7475 [2025-03-08 06:11:10,086 INFO L226 Difference]: Without dead ends: 3807 [2025-03-08 06:11:10,096 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2025-03-08 06:11:10,097 INFO L435 NwaCegarLoop]: 3594 mSDtfsCounter, 6872 mSDsluCounter, 2763 mSDsCounter, 0 mSdLazyCounter, 1389 mSolverCounterSat, 831 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6872 SdHoareTripleChecker+Valid, 6357 SdHoareTripleChecker+Invalid, 2220 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 831 IncrementalHoareTripleChecker+Valid, 1389 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2025-03-08 06:11:10,098 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [6872 Valid, 6357 Invalid, 2220 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [831 Valid, 1389 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2025-03-08 06:11:10,101 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3807 states. [2025-03-08 06:11:10,176 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3807 to 3671. [2025-03-08 06:11:10,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3671 states, 2997 states have (on average 1.2148815482148816) internal successors, (3641), 3042 states have internal predecessors, (3641), 554 states have call successors, (554), 119 states have call predecessors, (554), 119 states have return successors, (553), 533 states have call predecessors, (553), 553 states have call successors, (553) [2025-03-08 06:11:10,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3671 states to 3671 states and 4748 transitions. [2025-03-08 06:11:10,198 INFO L78 Accepts]: Start accepts. Automaton has 3671 states and 4748 transitions. Word has length 228 [2025-03-08 06:11:10,198 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 06:11:10,198 INFO L471 AbstractCegarLoop]: Abstraction has 3671 states and 4748 transitions. [2025-03-08 06:11:10,199 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 31.333333333333332) internal successors, (188), 6 states have internal predecessors, (188), 4 states have call successors, (13), 2 states have call predecessors, (13), 4 states have return successors, (11), 4 states have call predecessors, (11), 4 states have call successors, (11) [2025-03-08 06:11:10,199 INFO L276 IsEmpty]: Start isEmpty. Operand 3671 states and 4748 transitions. [2025-03-08 06:11:10,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 230 [2025-03-08 06:11:10,201 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 06:11:10,201 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 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] [2025-03-08 06:11:10,201 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2025-03-08 06:11:10,201 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 06:11:10,201 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 06:11:10,202 INFO L85 PathProgramCache]: Analyzing trace with hash -926588913, now seen corresponding path program 1 times [2025-03-08 06:11:10,202 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 06:11:10,202 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1148266526] [2025-03-08 06:11:10,202 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 06:11:10,202 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 06:11:10,505 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 229 statements into 1 equivalence classes. [2025-03-08 06:11:10,539 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 229 of 229 statements. [2025-03-08 06:11:10,539 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 06:11:10,539 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 06:11:10,847 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2025-03-08 06:11:10,847 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 06:11:10,847 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1148266526] [2025-03-08 06:11:10,847 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1148266526] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 06:11:10,847 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 06:11:10,848 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-03-08 06:11:10,848 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [309732763] [2025-03-08 06:11:10,848 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 06:11:10,848 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-08 06:11:10,848 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 06:11:10,848 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-08 06:11:10,848 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2025-03-08 06:11:10,848 INFO L87 Difference]: Start difference. First operand 3671 states and 4748 transitions. Second operand has 6 states, 6 states have (on average 31.5) internal successors, (189), 6 states have internal predecessors, (189), 4 states have call successors, (13), 2 states have call predecessors, (13), 4 states have return successors, (11), 4 states have call predecessors, (11), 4 states have call successors, (11) [2025-03-08 06:11:12,345 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 06:11:12,345 INFO L93 Difference]: Finished difference Result 7471 states and 9645 transitions. [2025-03-08 06:11:12,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-08 06:11:12,346 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 31.5) internal successors, (189), 6 states have internal predecessors, (189), 4 states have call successors, (13), 2 states have call predecessors, (13), 4 states have return successors, (11), 4 states have call predecessors, (11), 4 states have call successors, (11) Word has length 229 [2025-03-08 06:11:12,346 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 06:11:12,359 INFO L225 Difference]: With dead ends: 7471 [2025-03-08 06:11:12,359 INFO L226 Difference]: Without dead ends: 3805 [2025-03-08 06:11:12,370 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2025-03-08 06:11:12,370 INFO L435 NwaCegarLoop]: 3485 mSDtfsCounter, 4655 mSDsluCounter, 3577 mSDsCounter, 0 mSdLazyCounter, 1576 mSolverCounterSat, 240 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4655 SdHoareTripleChecker+Valid, 7062 SdHoareTripleChecker+Invalid, 1816 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 240 IncrementalHoareTripleChecker+Valid, 1576 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2025-03-08 06:11:12,370 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4655 Valid, 7062 Invalid, 1816 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [240 Valid, 1576 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2025-03-08 06:11:12,373 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3805 states. [2025-03-08 06:11:12,449 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3805 to 3667. [2025-03-08 06:11:12,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3667 states, 2995 states have (on average 1.214357262103506) internal successors, (3637), 3040 states have internal predecessors, (3637), 552 states have call successors, (552), 119 states have call predecessors, (552), 119 states have return successors, (551), 531 states have call predecessors, (551), 551 states have call successors, (551) [2025-03-08 06:11:12,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3667 states to 3667 states and 4740 transitions. [2025-03-08 06:11:12,466 INFO L78 Accepts]: Start accepts. Automaton has 3667 states and 4740 transitions. Word has length 229 [2025-03-08 06:11:12,467 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 06:11:12,467 INFO L471 AbstractCegarLoop]: Abstraction has 3667 states and 4740 transitions. [2025-03-08 06:11:12,467 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 31.5) internal successors, (189), 6 states have internal predecessors, (189), 4 states have call successors, (13), 2 states have call predecessors, (13), 4 states have return successors, (11), 4 states have call predecessors, (11), 4 states have call successors, (11) [2025-03-08 06:11:12,467 INFO L276 IsEmpty]: Start isEmpty. Operand 3667 states and 4740 transitions. [2025-03-08 06:11:12,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 231 [2025-03-08 06:11:12,469 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 06:11:12,469 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 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] [2025-03-08 06:11:12,469 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2025-03-08 06:11:12,469 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 06:11:12,470 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 06:11:12,470 INFO L85 PathProgramCache]: Analyzing trace with hash -325154278, now seen corresponding path program 1 times [2025-03-08 06:11:12,470 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 06:11:12,470 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1512486915] [2025-03-08 06:11:12,470 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 06:11:12,470 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 06:11:12,840 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 230 statements into 1 equivalence classes. [2025-03-08 06:11:12,875 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 230 of 230 statements. [2025-03-08 06:11:12,875 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 06:11:12,875 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 06:11:13,183 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2025-03-08 06:11:13,184 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 06:11:13,184 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1512486915] [2025-03-08 06:11:13,184 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1512486915] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 06:11:13,184 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 06:11:13,184 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-03-08 06:11:13,184 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1659306012] [2025-03-08 06:11:13,184 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 06:11:13,184 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-08 06:11:13,184 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 06:11:13,185 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-08 06:11:13,185 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2025-03-08 06:11:13,185 INFO L87 Difference]: Start difference. First operand 3667 states and 4740 transitions. Second operand has 6 states, 6 states have (on average 31.666666666666668) internal successors, (190), 6 states have internal predecessors, (190), 4 states have call successors, (13), 2 states have call predecessors, (13), 4 states have return successors, (11), 4 states have call predecessors, (11), 4 states have call successors, (11) [2025-03-08 06:11:14,786 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 06:11:14,787 INFO L93 Difference]: Finished difference Result 7327 states and 9477 transitions. [2025-03-08 06:11:14,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-08 06:11:14,787 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 31.666666666666668) internal successors, (190), 6 states have internal predecessors, (190), 4 states have call successors, (13), 2 states have call predecessors, (13), 4 states have return successors, (11), 4 states have call predecessors, (11), 4 states have call successors, (11) Word has length 230 [2025-03-08 06:11:14,787 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 06:11:14,801 INFO L225 Difference]: With dead ends: 7327 [2025-03-08 06:11:14,801 INFO L226 Difference]: Without dead ends: 3665 [2025-03-08 06:11:14,812 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2025-03-08 06:11:14,812 INFO L435 NwaCegarLoop]: 3459 mSDtfsCounter, 4640 mSDsluCounter, 3444 mSDsCounter, 0 mSdLazyCounter, 1794 mSolverCounterSat, 311 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4640 SdHoareTripleChecker+Valid, 6903 SdHoareTripleChecker+Invalid, 2105 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 311 IncrementalHoareTripleChecker+Valid, 1794 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2025-03-08 06:11:14,812 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4640 Valid, 6903 Invalid, 2105 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [311 Valid, 1794 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2025-03-08 06:11:14,815 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3665 states. [2025-03-08 06:11:14,888 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3665 to 3663. [2025-03-08 06:11:14,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3663 states, 2993 states have (on average 1.2138322753090545) internal successors, (3633), 3038 states have internal predecessors, (3633), 550 states have call successors, (550), 119 states have call predecessors, (550), 119 states have return successors, (549), 529 states have call predecessors, (549), 549 states have call successors, (549) [2025-03-08 06:11:14,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3663 states to 3663 states and 4732 transitions. [2025-03-08 06:11:14,905 INFO L78 Accepts]: Start accepts. Automaton has 3663 states and 4732 transitions. Word has length 230 [2025-03-08 06:11:14,906 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 06:11:14,906 INFO L471 AbstractCegarLoop]: Abstraction has 3663 states and 4732 transitions. [2025-03-08 06:11:14,906 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 31.666666666666668) internal successors, (190), 6 states have internal predecessors, (190), 4 states have call successors, (13), 2 states have call predecessors, (13), 4 states have return successors, (11), 4 states have call predecessors, (11), 4 states have call successors, (11) [2025-03-08 06:11:14,906 INFO L276 IsEmpty]: Start isEmpty. Operand 3663 states and 4732 transitions. [2025-03-08 06:11:14,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 231 [2025-03-08 06:11:14,908 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 06:11:14,908 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 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] [2025-03-08 06:11:14,908 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2025-03-08 06:11:14,908 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 06:11:14,909 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 06:11:14,909 INFO L85 PathProgramCache]: Analyzing trace with hash -1641796048, now seen corresponding path program 1 times [2025-03-08 06:11:14,909 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 06:11:14,909 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1143118268] [2025-03-08 06:11:14,909 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 06:11:14,910 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 06:11:15,231 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 230 statements into 1 equivalence classes. [2025-03-08 06:11:15,262 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 230 of 230 statements. [2025-03-08 06:11:15,262 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 06:11:15,262 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 06:11:15,542 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2025-03-08 06:11:15,542 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 06:11:15,543 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1143118268] [2025-03-08 06:11:15,543 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1143118268] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 06:11:15,543 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 06:11:15,543 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-08 06:11:15,543 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [509746872] [2025-03-08 06:11:15,543 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 06:11:15,543 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-08 06:11:15,543 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 06:11:15,543 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-08 06:11:15,543 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-03-08 06:11:15,544 INFO L87 Difference]: Start difference. First operand 3663 states and 4732 transitions. Second operand has 5 states, 5 states have (on average 37.6) internal successors, (188), 5 states have internal predecessors, (188), 3 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2025-03-08 06:11:16,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 06:11:16,092 INFO L93 Difference]: Finished difference Result 7323 states and 9464 transitions. [2025-03-08 06:11:16,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-08 06:11:16,092 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 37.6) internal successors, (188), 5 states have internal predecessors, (188), 3 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 230 [2025-03-08 06:11:16,093 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 06:11:16,111 INFO L225 Difference]: With dead ends: 7323 [2025-03-08 06:11:16,111 INFO L226 Difference]: Without dead ends: 3665 [2025-03-08 06:11:16,122 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 [2025-03-08 06:11:16,123 INFO L435 NwaCegarLoop]: 2921 mSDtfsCounter, 1783 mSDsluCounter, 5310 mSDsCounter, 0 mSdLazyCounter, 353 mSolverCounterSat, 218 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1783 SdHoareTripleChecker+Valid, 8231 SdHoareTripleChecker+Invalid, 571 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 218 IncrementalHoareTripleChecker+Valid, 353 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2025-03-08 06:11:16,123 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1783 Valid, 8231 Invalid, 571 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [218 Valid, 353 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2025-03-08 06:11:16,126 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3665 states. [2025-03-08 06:11:16,219 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3665 to 3663. [2025-03-08 06:11:16,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3663 states, 2993 states have (on average 1.213498162378884) internal successors, (3632), 3038 states have internal predecessors, (3632), 550 states have call successors, (550), 119 states have call predecessors, (550), 119 states have return successors, (549), 529 states have call predecessors, (549), 549 states have call successors, (549) [2025-03-08 06:11:16,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3663 states to 3663 states and 4731 transitions. [2025-03-08 06:11:16,245 INFO L78 Accepts]: Start accepts. Automaton has 3663 states and 4731 transitions. Word has length 230 [2025-03-08 06:11:16,246 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 06:11:16,246 INFO L471 AbstractCegarLoop]: Abstraction has 3663 states and 4731 transitions. [2025-03-08 06:11:16,246 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 37.6) internal successors, (188), 5 states have internal predecessors, (188), 3 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2025-03-08 06:11:16,246 INFO L276 IsEmpty]: Start isEmpty. Operand 3663 states and 4731 transitions. [2025-03-08 06:11:16,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 234 [2025-03-08 06:11:16,248 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 06:11:16,248 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 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] [2025-03-08 06:11:16,248 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2025-03-08 06:11:16,248 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 06:11:16,250 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 06:11:16,250 INFO L85 PathProgramCache]: Analyzing trace with hash -1512708940, now seen corresponding path program 1 times [2025-03-08 06:11:16,250 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 06:11:16,250 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1176907646] [2025-03-08 06:11:16,250 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 06:11:16,250 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 06:11:16,571 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 233 statements into 1 equivalence classes. [2025-03-08 06:11:16,605 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 233 of 233 statements. [2025-03-08 06:11:16,606 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 06:11:16,606 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 06:11:16,865 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2025-03-08 06:11:16,865 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 06:11:16,865 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1176907646] [2025-03-08 06:11:16,866 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1176907646] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 06:11:16,866 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 06:11:16,866 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-08 06:11:16,866 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [223928301] [2025-03-08 06:11:16,866 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 06:11:16,866 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-08 06:11:16,866 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 06:11:16,866 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-08 06:11:16,866 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-03-08 06:11:16,866 INFO L87 Difference]: Start difference. First operand 3663 states and 4731 transitions. Second operand has 5 states, 5 states have (on average 37.8) internal successors, (189), 5 states have internal predecessors, (189), 3 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2025-03-08 06:11:17,337 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 06:11:17,338 INFO L93 Difference]: Finished difference Result 7455 states and 9610 transitions. [2025-03-08 06:11:17,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-08 06:11:17,342 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 37.8) internal successors, (189), 5 states have internal predecessors, (189), 3 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 233 [2025-03-08 06:11:17,343 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 06:11:17,362 INFO L225 Difference]: With dead ends: 7455 [2025-03-08 06:11:17,362 INFO L226 Difference]: Without dead ends: 3797 [2025-03-08 06:11:17,373 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 [2025-03-08 06:11:17,374 INFO L435 NwaCegarLoop]: 2997 mSDtfsCounter, 2371 mSDsluCounter, 5648 mSDsCounter, 0 mSdLazyCounter, 567 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2371 SdHoareTripleChecker+Valid, 8645 SdHoareTripleChecker+Invalid, 573 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 567 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2025-03-08 06:11:17,374 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2371 Valid, 8645 Invalid, 573 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 567 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2025-03-08 06:11:17,377 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3797 states. [2025-03-08 06:11:17,453 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3797 to 3661. [2025-03-08 06:11:17,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3661 states, 2992 states have (on average 1.213235294117647) internal successors, (3630), 3037 states have internal predecessors, (3630), 549 states have call successors, (549), 119 states have call predecessors, (549), 119 states have return successors, (548), 528 states have call predecessors, (548), 548 states have call successors, (548) [2025-03-08 06:11:17,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3661 states to 3661 states and 4727 transitions. [2025-03-08 06:11:17,472 INFO L78 Accepts]: Start accepts. Automaton has 3661 states and 4727 transitions. Word has length 233 [2025-03-08 06:11:17,472 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 06:11:17,472 INFO L471 AbstractCegarLoop]: Abstraction has 3661 states and 4727 transitions. [2025-03-08 06:11:17,472 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 37.8) internal successors, (189), 5 states have internal predecessors, (189), 3 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2025-03-08 06:11:17,472 INFO L276 IsEmpty]: Start isEmpty. Operand 3661 states and 4727 transitions. [2025-03-08 06:11:17,474 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 235 [2025-03-08 06:11:17,474 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 06:11:17,474 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 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] [2025-03-08 06:11:17,474 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2025-03-08 06:11:17,475 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 06:11:17,475 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 06:11:17,475 INFO L85 PathProgramCache]: Analyzing trace with hash -348781694, now seen corresponding path program 1 times [2025-03-08 06:11:17,475 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 06:11:17,475 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2102636892] [2025-03-08 06:11:17,475 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 06:11:17,475 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 06:11:17,781 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 234 statements into 1 equivalence classes. [2025-03-08 06:11:17,813 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 234 of 234 statements. [2025-03-08 06:11:17,813 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 06:11:17,813 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 06:11:18,099 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2025-03-08 06:11:18,099 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 06:11:18,099 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2102636892] [2025-03-08 06:11:18,099 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2102636892] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 06:11:18,099 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 06:11:18,099 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-08 06:11:18,099 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [235484145] [2025-03-08 06:11:18,099 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 06:11:18,099 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-08 06:11:18,099 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 06:11:18,100 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-08 06:11:18,100 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-03-08 06:11:18,100 INFO L87 Difference]: Start difference. First operand 3661 states and 4727 transitions. Second operand has 5 states, 5 states have (on average 38.0) internal successors, (190), 5 states have internal predecessors, (190), 3 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2025-03-08 06:11:18,558 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 06:11:18,558 INFO L93 Difference]: Finished difference Result 7453 states and 9603 transitions. [2025-03-08 06:11:18,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-08 06:11:18,558 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 38.0) internal successors, (190), 5 states have internal predecessors, (190), 3 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 234 [2025-03-08 06:11:18,559 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 06:11:18,572 INFO L225 Difference]: With dead ends: 7453 [2025-03-08 06:11:18,573 INFO L226 Difference]: Without dead ends: 3797 [2025-03-08 06:11:18,582 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 [2025-03-08 06:11:18,582 INFO L435 NwaCegarLoop]: 2898 mSDtfsCounter, 2510 mSDsluCounter, 5094 mSDsCounter, 0 mSdLazyCounter, 498 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2510 SdHoareTripleChecker+Valid, 7992 SdHoareTripleChecker+Invalid, 505 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 498 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-03-08 06:11:18,583 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2510 Valid, 7992 Invalid, 505 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 498 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-03-08 06:11:18,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3797 states. [2025-03-08 06:11:18,655 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3797 to 3659. [2025-03-08 06:11:18,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3659 states, 2991 states have (on average 1.212972250083584) internal successors, (3628), 3036 states have internal predecessors, (3628), 548 states have call successors, (548), 119 states have call predecessors, (548), 119 states have return successors, (547), 527 states have call predecessors, (547), 547 states have call successors, (547) [2025-03-08 06:11:18,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3659 states to 3659 states and 4723 transitions. [2025-03-08 06:11:18,673 INFO L78 Accepts]: Start accepts. Automaton has 3659 states and 4723 transitions. Word has length 234 [2025-03-08 06:11:18,673 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 06:11:18,673 INFO L471 AbstractCegarLoop]: Abstraction has 3659 states and 4723 transitions. [2025-03-08 06:11:18,673 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 38.0) internal successors, (190), 5 states have internal predecessors, (190), 3 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2025-03-08 06:11:18,673 INFO L276 IsEmpty]: Start isEmpty. Operand 3659 states and 4723 transitions. [2025-03-08 06:11:18,675 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 236 [2025-03-08 06:11:18,675 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 06:11:18,676 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 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] [2025-03-08 06:11:18,676 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2025-03-08 06:11:18,676 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 06:11:18,676 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 06:11:18,676 INFO L85 PathProgramCache]: Analyzing trace with hash -1367684645, now seen corresponding path program 1 times [2025-03-08 06:11:18,676 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 06:11:18,676 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [652463046] [2025-03-08 06:11:18,676 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 06:11:18,676 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 06:11:18,973 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 235 statements into 1 equivalence classes. [2025-03-08 06:11:19,047 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 235 of 235 statements. [2025-03-08 06:11:19,047 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 06:11:19,047 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 06:11:19,453 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2025-03-08 06:11:19,453 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 06:11:19,453 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [652463046] [2025-03-08 06:11:19,453 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [652463046] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 06:11:19,453 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 06:11:19,453 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-08 06:11:19,454 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [439173810] [2025-03-08 06:11:19,454 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 06:11:19,454 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-08 06:11:19,454 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 06:11:19,455 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-08 06:11:19,455 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-03-08 06:11:19,455 INFO L87 Difference]: Start difference. First operand 3659 states and 4723 transitions. Second operand has 5 states, 5 states have (on average 37.8) internal successors, (189), 5 states have internal predecessors, (189), 3 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2025-03-08 06:11:20,160 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 06:11:20,160 INFO L93 Difference]: Finished difference Result 7315 states and 9446 transitions. [2025-03-08 06:11:20,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-08 06:11:20,163 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 37.8) internal successors, (189), 5 states have internal predecessors, (189), 3 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 235 [2025-03-08 06:11:20,164 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 06:11:20,183 INFO L225 Difference]: With dead ends: 7315 [2025-03-08 06:11:20,183 INFO L226 Difference]: Without dead ends: 3661 [2025-03-08 06:11:20,194 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 [2025-03-08 06:11:20,195 INFO L435 NwaCegarLoop]: 2912 mSDtfsCounter, 1754 mSDsluCounter, 5300 mSDsCounter, 0 mSdLazyCounter, 354 mSolverCounterSat, 213 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1754 SdHoareTripleChecker+Valid, 8212 SdHoareTripleChecker+Invalid, 567 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 213 IncrementalHoareTripleChecker+Valid, 354 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2025-03-08 06:11:20,195 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1754 Valid, 8212 Invalid, 567 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [213 Valid, 354 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2025-03-08 06:11:20,198 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3661 states. [2025-03-08 06:11:20,277 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3661 to 3659. [2025-03-08 06:11:20,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3659 states, 2991 states have (on average 1.2126379137412238) internal successors, (3627), 3036 states have internal predecessors, (3627), 548 states have call successors, (548), 119 states have call predecessors, (548), 119 states have return successors, (547), 527 states have call predecessors, (547), 547 states have call successors, (547) [2025-03-08 06:11:20,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3659 states to 3659 states and 4722 transitions. [2025-03-08 06:11:20,297 INFO L78 Accepts]: Start accepts. Automaton has 3659 states and 4722 transitions. Word has length 235 [2025-03-08 06:11:20,298 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 06:11:20,298 INFO L471 AbstractCegarLoop]: Abstraction has 3659 states and 4722 transitions. [2025-03-08 06:11:20,298 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 37.8) internal successors, (189), 5 states have internal predecessors, (189), 3 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2025-03-08 06:11:20,298 INFO L276 IsEmpty]: Start isEmpty. Operand 3659 states and 4722 transitions. [2025-03-08 06:11:20,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 239 [2025-03-08 06:11:20,300 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 06:11:20,301 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 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] [2025-03-08 06:11:20,301 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2025-03-08 06:11:20,301 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 06:11:20,301 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 06:11:20,301 INFO L85 PathProgramCache]: Analyzing trace with hash 1548251379, now seen corresponding path program 1 times [2025-03-08 06:11:20,301 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 06:11:20,301 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [965798909] [2025-03-08 06:11:20,301 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 06:11:20,301 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 06:11:20,584 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 238 statements into 1 equivalence classes. [2025-03-08 06:11:20,622 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 238 of 238 statements. [2025-03-08 06:11:20,622 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 06:11:20,622 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 06:11:20,929 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2025-03-08 06:11:20,929 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 06:11:20,930 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [965798909] [2025-03-08 06:11:20,930 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [965798909] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 06:11:20,930 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 06:11:20,930 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-08 06:11:20,930 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1376230888] [2025-03-08 06:11:20,930 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 06:11:20,930 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-08 06:11:20,930 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 06:11:20,930 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-08 06:11:20,930 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-03-08 06:11:20,931 INFO L87 Difference]: Start difference. First operand 3659 states and 4722 transitions. Second operand has 5 states, 5 states have (on average 38.0) internal successors, (190), 5 states have internal predecessors, (190), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2025-03-08 06:11:21,518 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 06:11:21,518 INFO L93 Difference]: Finished difference Result 7447 states and 9592 transitions. [2025-03-08 06:11:21,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-08 06:11:21,519 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 38.0) internal successors, (190), 5 states have internal predecessors, (190), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) Word has length 238 [2025-03-08 06:11:21,519 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 06:11:21,536 INFO L225 Difference]: With dead ends: 7447 [2025-03-08 06:11:21,536 INFO L226 Difference]: Without dead ends: 3793 [2025-03-08 06:11:21,546 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 [2025-03-08 06:11:21,547 INFO L435 NwaCegarLoop]: 2988 mSDtfsCounter, 2354 mSDsluCounter, 5638 mSDsCounter, 0 mSdLazyCounter, 568 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2354 SdHoareTripleChecker+Valid, 8626 SdHoareTripleChecker+Invalid, 574 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 568 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2025-03-08 06:11:21,547 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2354 Valid, 8626 Invalid, 574 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 568 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2025-03-08 06:11:21,550 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3793 states. [2025-03-08 06:11:21,622 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3793 to 3657. [2025-03-08 06:11:21,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3657 states, 2990 states have (on average 1.2123745819397993) internal successors, (3625), 3035 states have internal predecessors, (3625), 547 states have call successors, (547), 119 states have call predecessors, (547), 119 states have return successors, (546), 526 states have call predecessors, (546), 546 states have call successors, (546) [2025-03-08 06:11:21,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3657 states to 3657 states and 4718 transitions. [2025-03-08 06:11:21,643 INFO L78 Accepts]: Start accepts. Automaton has 3657 states and 4718 transitions. Word has length 238 [2025-03-08 06:11:21,643 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 06:11:21,643 INFO L471 AbstractCegarLoop]: Abstraction has 3657 states and 4718 transitions. [2025-03-08 06:11:21,643 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 38.0) internal successors, (190), 5 states have internal predecessors, (190), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2025-03-08 06:11:21,643 INFO L276 IsEmpty]: Start isEmpty. Operand 3657 states and 4718 transitions. [2025-03-08 06:11:21,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 240 [2025-03-08 06:11:21,645 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 06:11:21,645 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 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] [2025-03-08 06:11:21,646 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2025-03-08 06:11:21,646 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 06:11:21,646 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 06:11:21,646 INFO L85 PathProgramCache]: Analyzing trace with hash 1790988090, now seen corresponding path program 1 times [2025-03-08 06:11:21,646 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 06:11:21,646 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2101875813] [2025-03-08 06:11:21,646 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 06:11:21,646 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 06:11:21,916 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 239 statements into 1 equivalence classes. [2025-03-08 06:11:21,951 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 239 of 239 statements. [2025-03-08 06:11:21,951 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 06:11:21,951 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 06:11:22,253 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2025-03-08 06:11:22,253 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 06:11:22,253 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2101875813] [2025-03-08 06:11:22,253 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2101875813] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 06:11:22,253 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 06:11:22,253 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-08 06:11:22,253 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [309072993] [2025-03-08 06:11:22,253 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 06:11:22,254 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-08 06:11:22,254 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 06:11:22,254 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-08 06:11:22,254 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-03-08 06:11:22,254 INFO L87 Difference]: Start difference. First operand 3657 states and 4718 transitions. Second operand has 5 states, 5 states have (on average 38.2) internal successors, (191), 5 states have internal predecessors, (191), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2025-03-08 06:11:23,186 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 06:11:23,186 INFO L93 Difference]: Finished difference Result 7445 states and 9585 transitions. [2025-03-08 06:11:23,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-08 06:11:23,187 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 38.2) internal successors, (191), 5 states have internal predecessors, (191), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) Word has length 239 [2025-03-08 06:11:23,187 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 06:11:23,204 INFO L225 Difference]: With dead ends: 7445 [2025-03-08 06:11:23,204 INFO L226 Difference]: Without dead ends: 3793 [2025-03-08 06:11:23,214 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 [2025-03-08 06:11:23,214 INFO L435 NwaCegarLoop]: 2889 mSDtfsCounter, 4465 mSDsluCounter, 3984 mSDsCounter, 0 mSdLazyCounter, 421 mSolverCounterSat, 534 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4465 SdHoareTripleChecker+Valid, 6873 SdHoareTripleChecker+Invalid, 955 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 534 IncrementalHoareTripleChecker+Valid, 421 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2025-03-08 06:11:23,214 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4465 Valid, 6873 Invalid, 955 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [534 Valid, 421 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2025-03-08 06:11:23,217 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3793 states. [2025-03-08 06:11:23,295 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3793 to 3655. [2025-03-08 06:11:23,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3655 states, 2989 states have (on average 1.2121110739377718) internal successors, (3623), 3034 states have internal predecessors, (3623), 546 states have call successors, (546), 119 states have call predecessors, (546), 119 states have return successors, (545), 525 states have call predecessors, (545), 545 states have call successors, (545) [2025-03-08 06:11:23,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3655 states to 3655 states and 4714 transitions. [2025-03-08 06:11:23,316 INFO L78 Accepts]: Start accepts. Automaton has 3655 states and 4714 transitions. Word has length 239 [2025-03-08 06:11:23,316 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 06:11:23,316 INFO L471 AbstractCegarLoop]: Abstraction has 3655 states and 4714 transitions. [2025-03-08 06:11:23,316 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 38.2) internal successors, (191), 5 states have internal predecessors, (191), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2025-03-08 06:11:23,316 INFO L276 IsEmpty]: Start isEmpty. Operand 3655 states and 4714 transitions. [2025-03-08 06:11:23,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2025-03-08 06:11:23,353 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 06:11:23,354 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 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] [2025-03-08 06:11:23,354 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2025-03-08 06:11:23,354 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 06:11:23,354 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 06:11:23,355 INFO L85 PathProgramCache]: Analyzing trace with hash 899572116, now seen corresponding path program 1 times [2025-03-08 06:11:23,355 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 06:11:23,355 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1844343933] [2025-03-08 06:11:23,355 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 06:11:23,355 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 06:11:23,623 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 240 statements into 1 equivalence classes. [2025-03-08 06:11:23,658 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 240 of 240 statements. [2025-03-08 06:11:23,658 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 06:11:23,658 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 06:11:23,955 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2025-03-08 06:11:23,955 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 06:11:23,956 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1844343933] [2025-03-08 06:11:23,956 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1844343933] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 06:11:23,956 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 06:11:23,956 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-08 06:11:23,956 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [376359550] [2025-03-08 06:11:23,956 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 06:11:23,956 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-08 06:11:23,956 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 06:11:23,956 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-08 06:11:23,956 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-03-08 06:11:23,957 INFO L87 Difference]: Start difference. First operand 3655 states and 4714 transitions. Second operand has 5 states, 5 states have (on average 38.4) internal successors, (192), 5 states have internal predecessors, (192), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2025-03-08 06:11:24,432 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 06:11:24,432 INFO L93 Difference]: Finished difference Result 7305 states and 9425 transitions. [2025-03-08 06:11:24,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-08 06:11:24,433 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 38.4) internal successors, (192), 5 states have internal predecessors, (192), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) Word has length 240 [2025-03-08 06:11:24,433 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 06:11:24,449 INFO L225 Difference]: With dead ends: 7305 [2025-03-08 06:11:24,449 INFO L226 Difference]: Without dead ends: 3655 [2025-03-08 06:11:24,459 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 [2025-03-08 06:11:24,459 INFO L435 NwaCegarLoop]: 3016 mSDtfsCounter, 2447 mSDsluCounter, 5246 mSDsCounter, 0 mSdLazyCounter, 558 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2447 SdHoareTripleChecker+Valid, 8262 SdHoareTripleChecker+Invalid, 564 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 558 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2025-03-08 06:11:24,459 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2447 Valid, 8262 Invalid, 564 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 558 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2025-03-08 06:11:24,463 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3655 states. [2025-03-08 06:11:24,535 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3655 to 3653. [2025-03-08 06:11:24,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3653 states, 2988 states have (on average 1.211847389558233) internal successors, (3621), 3033 states have internal predecessors, (3621), 545 states have call successors, (545), 119 states have call predecessors, (545), 119 states have return successors, (544), 524 states have call predecessors, (544), 544 states have call successors, (544) [2025-03-08 06:11:24,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3653 states to 3653 states and 4710 transitions. [2025-03-08 06:11:24,554 INFO L78 Accepts]: Start accepts. Automaton has 3653 states and 4710 transitions. Word has length 240 [2025-03-08 06:11:24,554 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 06:11:24,554 INFO L471 AbstractCegarLoop]: Abstraction has 3653 states and 4710 transitions. [2025-03-08 06:11:24,554 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 38.4) internal successors, (192), 5 states have internal predecessors, (192), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2025-03-08 06:11:24,554 INFO L276 IsEmpty]: Start isEmpty. Operand 3653 states and 4710 transitions. [2025-03-08 06:11:24,556 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2025-03-08 06:11:24,556 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 06:11:24,556 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 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] [2025-03-08 06:11:24,557 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2025-03-08 06:11:24,557 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 06:11:24,557 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 06:11:24,557 INFO L85 PathProgramCache]: Analyzing trace with hash -334396947, now seen corresponding path program 1 times [2025-03-08 06:11:24,557 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 06:11:24,557 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [598551702] [2025-03-08 06:11:24,557 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 06:11:24,557 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 06:11:24,855 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 240 statements into 1 equivalence classes. [2025-03-08 06:11:24,922 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 240 of 240 statements. [2025-03-08 06:11:24,923 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 06:11:24,923 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat