./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/product-lines/email_spec0_product10.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 803cd42f Calling Ultimate with: /root/.sdkman/candidates/java/current/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_1.5.800.v20200727-1323.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/product-lines/email_spec0_product10.cil.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 ac360da941eb2bc713d1cdb41b6939d6a50ea394a41fda87a7330709a6b33058 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-803cd42-m [2024-11-22 01:50:15,102 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-22 01:50:15,169 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-22 01:50:15,174 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-22 01:50:15,177 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-22 01:50:15,203 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-22 01:50:15,205 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-22 01:50:15,205 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-22 01:50:15,206 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-22 01:50:15,207 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-22 01:50:15,208 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-22 01:50:15,208 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-22 01:50:15,209 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-22 01:50:15,211 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-22 01:50:15,211 INFO L153 SettingsManager]: * Use SBE=true [2024-11-22 01:50:15,212 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-22 01:50:15,212 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-22 01:50:15,212 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-22 01:50:15,212 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-22 01:50:15,213 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-22 01:50:15,213 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-22 01:50:15,217 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-22 01:50:15,217 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-22 01:50:15,218 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-22 01:50:15,219 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-22 01:50:15,219 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-22 01:50:15,219 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-22 01:50:15,220 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-22 01:50:15,220 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-22 01:50:15,220 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-22 01:50:15,220 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-22 01:50:15,221 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-22 01:50:15,221 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 01:50:15,222 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-22 01:50:15,222 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-22 01:50:15,223 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-22 01:50:15,223 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-22 01:50:15,223 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-22 01:50:15,224 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-22 01:50:15,224 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-22 01:50:15,224 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-22 01:50:15,224 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-22 01:50:15,225 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ac360da941eb2bc713d1cdb41b6939d6a50ea394a41fda87a7330709a6b33058 [2024-11-22 01:50:15,492 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-22 01:50:15,519 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-22 01:50:15,523 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-22 01:50:15,525 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-22 01:50:15,525 INFO L274 PluginConnector]: CDTParser initialized [2024-11-22 01:50:15,526 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/email_spec0_product10.cil.c [2024-11-22 01:50:17,006 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-22 01:50:17,290 INFO L384 CDTParser]: Found 1 translation units. [2024-11-22 01:50:17,291 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/email_spec0_product10.cil.c [2024-11-22 01:50:17,312 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4a9419305/e8472e429b574bb0bccf714b1c1768cc/FLAGe3acfb225 [2024-11-22 01:50:17,330 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4a9419305/e8472e429b574bb0bccf714b1c1768cc [2024-11-22 01:50:17,335 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-22 01:50:17,337 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-22 01:50:17,339 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-22 01:50:17,340 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-22 01:50:17,347 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-22 01:50:17,348 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:50:17" (1/1) ... [2024-11-22 01:50:17,348 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7bdc9c56 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:50:17, skipping insertion in model container [2024-11-22 01:50:17,349 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:50:17" (1/1) ... [2024-11-22 01:50:17,421 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-22 01:50:17,653 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/product-lines/email_spec0_product10.cil.c[2842,2855] [2024-11-22 01:50:17,974 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 01:50:17,998 INFO L200 MainTranslator]: Completed pre-run [2024-11-22 01:50:18,008 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Util.i","") [48] [2024-11-22 01:50:18,010 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [66] [2024-11-22 01:50:18,010 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [115] [2024-11-22 01:50:18,011 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"DecryptForward_spec.i","") [124] [2024-11-22 01:50:18,012 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [145] [2024-11-22 01:50:18,012 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Client.i","") [511] [2024-11-22 01:50:18,012 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [714] [2024-11-22 01:50:18,012 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"EmailLib.i","") [859] [2024-11-22 01:50:18,012 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [1267] [2024-11-22 01:50:18,012 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Email.i","") [1462] [2024-11-22 01:50:18,012 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"ClientLib.i","") [1525] [2024-11-22 01:50:18,021 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/product-lines/email_spec0_product10.cil.c[2842,2855] [2024-11-22 01:50:18,167 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 01:50:18,213 INFO L204 MainTranslator]: Completed translation [2024-11-22 01:50:18,213 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:50:18 WrapperNode [2024-11-22 01:50:18,213 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-22 01:50:18,215 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-22 01:50:18,215 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-22 01:50:18,215 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-22 01:50:18,222 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:50:18" (1/1) ... [2024-11-22 01:50:18,255 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:50:18" (1/1) ... [2024-11-22 01:50:18,305 INFO L138 Inliner]: procedures = 110, calls = 121, calls flagged for inlining = 40, calls inlined = 33, statements flattened = 622 [2024-11-22 01:50:18,306 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-22 01:50:18,306 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-22 01:50:18,307 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-22 01:50:18,307 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-22 01:50:18,321 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:50:18" (1/1) ... [2024-11-22 01:50:18,321 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:50:18" (1/1) ... [2024-11-22 01:50:18,330 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:50:18" (1/1) ... [2024-11-22 01:50:18,368 INFO L175 MemorySlicer]: Split 6 memory accesses to 2 slices as follows [2, 4]. 67 percent of accesses are in the largest equivalence class. The 6 initializations are split as follows [2, 4]. The 0 writes are split as follows [0, 0]. [2024-11-22 01:50:18,368 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:50:18" (1/1) ... [2024-11-22 01:50:18,369 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:50:18" (1/1) ... [2024-11-22 01:50:18,382 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:50:18" (1/1) ... [2024-11-22 01:50:18,391 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:50:18" (1/1) ... [2024-11-22 01:50:18,394 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:50:18" (1/1) ... [2024-11-22 01:50:18,397 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:50:18" (1/1) ... [2024-11-22 01:50:18,401 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-22 01:50:18,402 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-22 01:50:18,402 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-22 01:50:18,402 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-22 01:50:18,403 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:50:18" (1/1) ... [2024-11-22 01:50:18,408 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 01:50:18,424 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 01:50:18,464 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) [2024-11-22 01:50:18,466 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 [2024-11-22 01:50:18,507 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2024-11-22 01:50:18,507 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2024-11-22 01:50:18,507 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2024-11-22 01:50:18,507 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2024-11-22 01:50:18,507 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2024-11-22 01:50:18,508 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2024-11-22 01:50:18,508 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2024-11-22 01:50:18,508 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2024-11-22 01:50:18,508 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2024-11-22 01:50:18,508 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2024-11-22 01:50:18,508 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2024-11-22 01:50:18,508 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2024-11-22 01:50:18,508 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-22 01:50:18,508 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2024-11-22 01:50:18,508 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2024-11-22 01:50:18,509 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2024-11-22 01:50:18,509 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2024-11-22 01:50:18,509 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2024-11-22 01:50:18,509 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2024-11-22 01:50:18,509 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-22 01:50:18,509 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-22 01:50:18,509 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-22 01:50:18,509 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-22 01:50:18,661 INFO L238 CfgBuilder]: Building ICFG [2024-11-22 01:50:18,663 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-22 01:50:19,201 INFO L? ?]: Removed 194 outVars from TransFormulas that were not future-live. [2024-11-22 01:50:19,201 INFO L287 CfgBuilder]: Performing block encoding [2024-11-22 01:50:19,221 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-22 01:50:19,222 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-22 01:50:19,223 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:50:19 BoogieIcfgContainer [2024-11-22 01:50:19,223 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-22 01:50:19,225 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-22 01:50:19,225 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-22 01:50:19,229 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-22 01:50:19,229 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 01:50:17" (1/3) ... [2024-11-22 01:50:19,230 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@11c35b0b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:50:19, skipping insertion in model container [2024-11-22 01:50:19,230 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:50:18" (2/3) ... [2024-11-22 01:50:19,230 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@11c35b0b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:50:19, skipping insertion in model container [2024-11-22 01:50:19,231 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:50:19" (3/3) ... [2024-11-22 01:50:19,232 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec0_product10.cil.c [2024-11-22 01:50:19,247 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-22 01:50:19,248 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-22 01:50:19,324 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-22 01:50:19,333 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;@55973e8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-22 01:50:19,333 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-22 01:50:19,341 INFO L276 IsEmpty]: Start isEmpty. Operand has 154 states, 124 states have (on average 1.4758064516129032) internal successors, (183), 126 states have internal predecessors, (183), 19 states have call successors, (19), 9 states have call predecessors, (19), 9 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2024-11-22 01:50:19,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2024-11-22 01:50:19,357 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:50:19,359 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 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] [2024-11-22 01:50:19,359 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:50:19,366 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:50:19,366 INFO L85 PathProgramCache]: Analyzing trace with hash -948651659, now seen corresponding path program 1 times [2024-11-22 01:50:19,377 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:50:19,377 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1596998455] [2024-11-22 01:50:19,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:50:19,378 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:50:19,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:50:20,076 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-22 01:50:20,078 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:50:20,078 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1596998455] [2024-11-22 01:50:20,080 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1596998455] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 01:50:20,081 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2093540804] [2024-11-22 01:50:20,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:50:20,081 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 01:50:20,081 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 01:50:20,085 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) [2024-11-22 01:50:20,087 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-22 01:50:20,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:50:20,387 INFO L255 TraceCheckSpWp]: Trace formula consists of 796 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-22 01:50:20,397 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 01:50:20,418 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2024-11-22 01:50:20,420 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 01:50:20,420 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2093540804] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:50:20,421 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 01:50:20,421 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 5 [2024-11-22 01:50:20,424 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [650018162] [2024-11-22 01:50:20,425 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:50:20,431 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-22 01:50:20,432 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:50:20,458 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-22 01:50:20,459 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-22 01:50:20,462 INFO L87 Difference]: Start difference. First operand has 154 states, 124 states have (on average 1.4758064516129032) internal successors, (183), 126 states have internal predecessors, (183), 19 states have call successors, (19), 9 states have call predecessors, (19), 9 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) Second operand has 2 states, 2 states have (on average 23.5) internal successors, (47), 2 states have internal predecessors, (47), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-22 01:50:20,505 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:50:20,505 INFO L93 Difference]: Finished difference Result 253 states and 353 transitions. [2024-11-22 01:50:20,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-22 01:50:20,508 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 23.5) internal successors, (47), 2 states have internal predecessors, (47), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 79 [2024-11-22 01:50:20,508 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:50:20,518 INFO L225 Difference]: With dead ends: 253 [2024-11-22 01:50:20,518 INFO L226 Difference]: Without dead ends: 147 [2024-11-22 01:50:20,526 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 80 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-22 01:50:20,530 INFO L432 NwaCegarLoop]: 217 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, 217 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 [2024-11-22 01:50:20,531 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 217 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 01:50:20,546 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 147 states. [2024-11-22 01:50:20,571 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 147 to 147. [2024-11-22 01:50:20,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 147 states, 118 states have (on average 1.4576271186440677) internal successors, (172), 119 states have internal predecessors, (172), 19 states have call successors, (19), 9 states have call predecessors, (19), 9 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-11-22 01:50:20,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147 states to 147 states and 209 transitions. [2024-11-22 01:50:20,578 INFO L78 Accepts]: Start accepts. Automaton has 147 states and 209 transitions. Word has length 79 [2024-11-22 01:50:20,580 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:50:20,580 INFO L471 AbstractCegarLoop]: Abstraction has 147 states and 209 transitions. [2024-11-22 01:50:20,580 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 23.5) internal successors, (47), 2 states have internal predecessors, (47), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-22 01:50:20,581 INFO L276 IsEmpty]: Start isEmpty. Operand 147 states and 209 transitions. [2024-11-22 01:50:20,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2024-11-22 01:50:20,584 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:50:20,584 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 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] [2024-11-22 01:50:20,593 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-22 01:50:20,785 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-11-22 01:50:20,786 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:50:20,787 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:50:20,787 INFO L85 PathProgramCache]: Analyzing trace with hash 1054896219, now seen corresponding path program 1 times [2024-11-22 01:50:20,787 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:50:20,787 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [600400854] [2024-11-22 01:50:20,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:50:20,788 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:50:20,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:50:21,008 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-22 01:50:21,008 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:50:21,009 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [600400854] [2024-11-22 01:50:21,009 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [600400854] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 01:50:21,009 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1295693702] [2024-11-22 01:50:21,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:50:21,010 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 01:50:21,010 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 01:50:21,012 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) [2024-11-22 01:50:21,014 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-22 01:50:21,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:50:21,292 INFO L255 TraceCheckSpWp]: Trace formula consists of 797 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-22 01:50:21,298 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 01:50:21,333 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2024-11-22 01:50:21,333 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 01:50:21,334 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1295693702] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:50:21,334 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 01:50:21,334 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2024-11-22 01:50:21,334 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1907173940] [2024-11-22 01:50:21,334 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:50:21,335 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 01:50:21,335 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:50:21,336 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 01:50:21,336 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 01:50:21,337 INFO L87 Difference]: Start difference. First operand 147 states and 209 transitions. Second operand has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-22 01:50:21,377 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:50:21,377 INFO L93 Difference]: Finished difference Result 243 states and 334 transitions. [2024-11-22 01:50:21,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 01:50:21,382 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 80 [2024-11-22 01:50:21,382 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:50:21,384 INFO L225 Difference]: With dead ends: 243 [2024-11-22 01:50:21,387 INFO L226 Difference]: Without dead ends: 150 [2024-11-22 01:50:21,388 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 80 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 01:50:21,391 INFO L432 NwaCegarLoop]: 207 mSDtfsCounter, 1 mSDsluCounter, 205 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 412 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 01:50:21,391 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 412 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 01:50:21,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150 states. [2024-11-22 01:50:21,406 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 149. [2024-11-22 01:50:21,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 149 states, 120 states have (on average 1.45) internal successors, (174), 121 states have internal predecessors, (174), 19 states have call successors, (19), 9 states have call predecessors, (19), 9 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-11-22 01:50:21,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 149 states to 149 states and 211 transitions. [2024-11-22 01:50:21,409 INFO L78 Accepts]: Start accepts. Automaton has 149 states and 211 transitions. Word has length 80 [2024-11-22 01:50:21,409 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:50:21,409 INFO L471 AbstractCegarLoop]: Abstraction has 149 states and 211 transitions. [2024-11-22 01:50:21,409 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-22 01:50:21,410 INFO L276 IsEmpty]: Start isEmpty. Operand 149 states and 211 transitions. [2024-11-22 01:50:21,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2024-11-22 01:50:21,412 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:50:21,412 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 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] [2024-11-22 01:50:21,420 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-22 01:50:21,613 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,SelfDestructingSolverStorable1 [2024-11-22 01:50:21,616 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:50:21,619 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:50:21,619 INFO L85 PathProgramCache]: Analyzing trace with hash 1944121062, now seen corresponding path program 1 times [2024-11-22 01:50:21,620 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:50:21,620 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [411438434] [2024-11-22 01:50:21,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:50:21,621 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:50:21,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:50:21,839 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-22 01:50:21,841 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:50:21,842 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [411438434] [2024-11-22 01:50:21,842 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [411438434] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 01:50:21,842 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1289728980] [2024-11-22 01:50:21,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:50:21,843 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 01:50:21,843 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 01:50:21,845 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) [2024-11-22 01:50:21,847 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-22 01:50:22,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:50:22,095 INFO L255 TraceCheckSpWp]: Trace formula consists of 808 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-22 01:50:22,100 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 01:50:22,169 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-22 01:50:22,171 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 01:50:22,171 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1289728980] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:50:22,172 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 01:50:22,172 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 8 [2024-11-22 01:50:22,172 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1323130437] [2024-11-22 01:50:22,172 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:50:22,172 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 01:50:22,173 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:50:22,173 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 01:50:22,173 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-11-22 01:50:22,173 INFO L87 Difference]: Start difference. First operand 149 states and 211 transitions. Second operand has 5 states, 4 states have (on average 14.5) internal successors, (58), 5 states have internal predecessors, (58), 3 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (9), 2 states have call predecessors, (9), 3 states have call successors, (9) [2024-11-22 01:50:22,235 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:50:22,235 INFO L93 Difference]: Finished difference Result 291 states and 415 transitions. [2024-11-22 01:50:22,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 01:50:22,237 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 14.5) internal successors, (58), 5 states have internal predecessors, (58), 3 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (9), 2 states have call predecessors, (9), 3 states have call successors, (9) Word has length 85 [2024-11-22 01:50:22,237 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:50:22,240 INFO L225 Difference]: With dead ends: 291 [2024-11-22 01:50:22,243 INFO L226 Difference]: Without dead ends: 151 [2024-11-22 01:50:22,244 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 83 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-11-22 01:50:22,245 INFO L432 NwaCegarLoop]: 201 mSDtfsCounter, 2 mSDsluCounter, 592 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 793 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 01:50:22,245 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 793 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 01:50:22,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 151 states. [2024-11-22 01:50:22,266 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 151 to 151. [2024-11-22 01:50:22,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 151 states, 121 states have (on average 1.4462809917355373) internal successors, (175), 123 states have internal predecessors, (175), 19 states have call successors, (19), 9 states have call predecessors, (19), 10 states have return successors, (20), 18 states have call predecessors, (20), 18 states have call successors, (20) [2024-11-22 01:50:22,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 151 states and 214 transitions. [2024-11-22 01:50:22,270 INFO L78 Accepts]: Start accepts. Automaton has 151 states and 214 transitions. Word has length 85 [2024-11-22 01:50:22,271 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:50:22,271 INFO L471 AbstractCegarLoop]: Abstraction has 151 states and 214 transitions. [2024-11-22 01:50:22,271 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 14.5) internal successors, (58), 5 states have internal predecessors, (58), 3 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (9), 2 states have call predecessors, (9), 3 states have call successors, (9) [2024-11-22 01:50:22,271 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states and 214 transitions. [2024-11-22 01:50:22,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2024-11-22 01:50:22,273 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:50:22,273 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 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] [2024-11-22 01:50:22,287 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-22 01:50:22,473 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 01:50:22,474 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:50:22,474 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:50:22,474 INFO L85 PathProgramCache]: Analyzing trace with hash 1050990987, now seen corresponding path program 1 times [2024-11-22 01:50:22,475 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:50:22,475 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1757419139] [2024-11-22 01:50:22,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:50:22,475 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:50:22,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:50:22,604 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-22 01:50:22,604 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:50:22,605 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1757419139] [2024-11-22 01:50:22,605 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1757419139] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:50:22,605 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 01:50:22,605 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 01:50:22,605 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1568539564] [2024-11-22 01:50:22,605 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:50:22,606 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 01:50:22,606 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:50:22,606 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 01:50:22,607 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-22 01:50:22,607 INFO L87 Difference]: Start difference. First operand 151 states and 214 transitions. Second operand has 5 states, 4 states have (on average 14.25) internal successors, (57), 5 states have internal predecessors, (57), 3 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (9), 2 states have call predecessors, (9), 3 states have call successors, (9) [2024-11-22 01:50:22,644 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:50:22,645 INFO L93 Difference]: Finished difference Result 283 states and 403 transitions. [2024-11-22 01:50:22,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 01:50:22,645 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 14.25) internal successors, (57), 5 states have internal predecessors, (57), 3 states have call successors, (11), 2 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 86 [2024-11-22 01:50:22,646 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:50:22,647 INFO L225 Difference]: With dead ends: 283 [2024-11-22 01:50:22,647 INFO L226 Difference]: Without dead ends: 151 [2024-11-22 01:50:22,648 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-22 01:50:22,649 INFO L432 NwaCegarLoop]: 202 mSDtfsCounter, 2 mSDsluCounter, 595 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 797 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 01:50:22,649 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 797 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 01:50:22,650 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 151 states. [2024-11-22 01:50:22,657 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 151 to 151. [2024-11-22 01:50:22,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 151 states, 121 states have (on average 1.4462809917355373) internal successors, (175), 123 states have internal predecessors, (175), 19 states have call successors, (19), 9 states have call predecessors, (19), 10 states have return successors, (19), 18 states have call predecessors, (19), 18 states have call successors, (19) [2024-11-22 01:50:22,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 151 states and 213 transitions. [2024-11-22 01:50:22,659 INFO L78 Accepts]: Start accepts. Automaton has 151 states and 213 transitions. Word has length 86 [2024-11-22 01:50:22,659 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:50:22,660 INFO L471 AbstractCegarLoop]: Abstraction has 151 states and 213 transitions. [2024-11-22 01:50:22,660 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 14.25) internal successors, (57), 5 states have internal predecessors, (57), 3 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (9), 2 states have call predecessors, (9), 3 states have call successors, (9) [2024-11-22 01:50:22,660 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states and 213 transitions. [2024-11-22 01:50:22,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2024-11-22 01:50:22,661 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:50:22,661 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-22 01:50:22,662 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-22 01:50:22,662 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:50:22,662 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:50:22,663 INFO L85 PathProgramCache]: Analyzing trace with hash -1465416194, now seen corresponding path program 2 times [2024-11-22 01:50:22,663 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:50:22,663 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [35501530] [2024-11-22 01:50:22,663 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-22 01:50:22,663 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:50:22,708 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-22 01:50:22,709 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-22 01:50:22,786 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2024-11-22 01:50:22,787 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:50:22,787 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [35501530] [2024-11-22 01:50:22,787 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [35501530] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:50:22,787 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 01:50:22,787 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 01:50:22,787 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1953878875] [2024-11-22 01:50:22,787 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:50:22,788 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 01:50:22,788 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:50:22,789 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 01:50:22,789 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-22 01:50:22,789 INFO L87 Difference]: Start difference. First operand 151 states and 213 transitions. Second operand has 5 states, 5 states have (on average 10.8) internal successors, (54), 5 states have internal predecessors, (54), 3 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (9), 2 states have call predecessors, (9), 3 states have call successors, (9) [2024-11-22 01:50:22,835 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:50:22,835 INFO L93 Difference]: Finished difference Result 297 states and 427 transitions. [2024-11-22 01:50:22,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 01:50:22,836 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 5 states have internal predecessors, (54), 3 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (9), 2 states have call predecessors, (9), 3 states have call successors, (9) Word has length 87 [2024-11-22 01:50:22,836 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:50:22,838 INFO L225 Difference]: With dead ends: 297 [2024-11-22 01:50:22,838 INFO L226 Difference]: Without dead ends: 212 [2024-11-22 01:50:22,839 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-22 01:50:22,839 INFO L432 NwaCegarLoop]: 208 mSDtfsCounter, 176 mSDsluCounter, 503 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 176 SdHoareTripleChecker+Valid, 711 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 01:50:22,840 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [176 Valid, 711 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 01:50:22,841 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 212 states. [2024-11-22 01:50:22,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 212 to 212. [2024-11-22 01:50:22,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 212 states, 175 states have (on average 1.5142857142857142) internal successors, (265), 178 states have internal predecessors, (265), 24 states have call successors, (24), 13 states have call predecessors, (24), 12 states have return successors, (24), 20 states have call predecessors, (24), 23 states have call successors, (24) [2024-11-22 01:50:22,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 212 states to 212 states and 313 transitions. [2024-11-22 01:50:22,853 INFO L78 Accepts]: Start accepts. Automaton has 212 states and 313 transitions. Word has length 87 [2024-11-22 01:50:22,854 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:50:22,854 INFO L471 AbstractCegarLoop]: Abstraction has 212 states and 313 transitions. [2024-11-22 01:50:22,854 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 5 states have internal predecessors, (54), 3 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (9), 2 states have call predecessors, (9), 3 states have call successors, (9) [2024-11-22 01:50:22,854 INFO L276 IsEmpty]: Start isEmpty. Operand 212 states and 313 transitions. [2024-11-22 01:50:22,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2024-11-22 01:50:22,856 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:50:22,856 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-22 01:50:22,856 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-22 01:50:22,856 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:50:22,856 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:50:22,856 INFO L85 PathProgramCache]: Analyzing trace with hash -1790643774, now seen corresponding path program 1 times [2024-11-22 01:50:22,857 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:50:22,857 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [394976676] [2024-11-22 01:50:22,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:50:22,857 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:50:22,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:50:22,989 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-22 01:50:22,990 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:50:22,990 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [394976676] [2024-11-22 01:50:22,990 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [394976676] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:50:22,990 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 01:50:22,990 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 01:50:22,990 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1948560079] [2024-11-22 01:50:22,990 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:50:22,991 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 01:50:22,991 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:50:22,992 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 01:50:22,992 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-22 01:50:22,992 INFO L87 Difference]: Start difference. First operand 212 states and 313 transitions. Second operand has 5 states, 4 states have (on average 16.75) internal successors, (67), 5 states have internal predecessors, (67), 3 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (9), 2 states have call predecessors, (9), 3 states have call successors, (9) [2024-11-22 01:50:23,041 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:50:23,043 INFO L93 Difference]: Finished difference Result 407 states and 606 transitions. [2024-11-22 01:50:23,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 01:50:23,043 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 16.75) internal successors, (67), 5 states have internal predecessors, (67), 3 states have call successors, (11), 2 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 96 [2024-11-22 01:50:23,044 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:50:23,045 INFO L225 Difference]: With dead ends: 407 [2024-11-22 01:50:23,045 INFO L226 Difference]: Without dead ends: 214 [2024-11-22 01:50:23,049 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-22 01:50:23,050 INFO L432 NwaCegarLoop]: 203 mSDtfsCounter, 1 mSDsluCounter, 597 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 800 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 01:50:23,050 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 800 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 01:50:23,051 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 214 states. [2024-11-22 01:50:23,069 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 214 to 214. [2024-11-22 01:50:23,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 214 states, 176 states have (on average 1.5113636363636365) internal successors, (266), 180 states have internal predecessors, (266), 24 states have call successors, (24), 13 states have call predecessors, (24), 13 states have return successors, (26), 20 states have call predecessors, (26), 23 states have call successors, (26) [2024-11-22 01:50:23,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 214 states to 214 states and 316 transitions. [2024-11-22 01:50:23,076 INFO L78 Accepts]: Start accepts. Automaton has 214 states and 316 transitions. Word has length 96 [2024-11-22 01:50:23,076 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:50:23,076 INFO L471 AbstractCegarLoop]: Abstraction has 214 states and 316 transitions. [2024-11-22 01:50:23,076 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 16.75) internal successors, (67), 5 states have internal predecessors, (67), 3 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (9), 2 states have call predecessors, (9), 3 states have call successors, (9) [2024-11-22 01:50:23,076 INFO L276 IsEmpty]: Start isEmpty. Operand 214 states and 316 transitions. [2024-11-22 01:50:23,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2024-11-22 01:50:23,077 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:50:23,078 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 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] [2024-11-22 01:50:23,078 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-22 01:50:23,078 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:50:23,078 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:50:23,078 INFO L85 PathProgramCache]: Analyzing trace with hash 212189470, now seen corresponding path program 1 times [2024-11-22 01:50:23,078 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:50:23,078 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [979785623] [2024-11-22 01:50:23,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:50:23,079 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:50:23,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:50:23,199 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2024-11-22 01:50:23,200 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:50:23,200 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [979785623] [2024-11-22 01:50:23,200 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [979785623] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 01:50:23,200 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [421264179] [2024-11-22 01:50:23,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:50:23,201 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 01:50:23,202 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 01:50:23,204 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) [2024-11-22 01:50:23,206 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-22 01:50:23,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:50:23,466 INFO L255 TraceCheckSpWp]: Trace formula consists of 812 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-22 01:50:23,473 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 01:50:23,498 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2024-11-22 01:50:23,499 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 01:50:23,583 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2024-11-22 01:50:23,583 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [421264179] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-22 01:50:23,583 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-22 01:50:23,584 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2024-11-22 01:50:23,584 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1979403444] [2024-11-22 01:50:23,584 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-22 01:50:23,584 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-22 01:50:23,585 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:50:23,585 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-22 01:50:23,585 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-11-22 01:50:23,585 INFO L87 Difference]: Start difference. First operand 214 states and 316 transitions. Second operand has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 7 states have internal predecessors, (81), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2024-11-22 01:50:23,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:50:23,647 INFO L93 Difference]: Finished difference Result 540 states and 831 transitions. [2024-11-22 01:50:23,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-22 01:50:23,647 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 7 states have internal predecessors, (81), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 89 [2024-11-22 01:50:23,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:50:23,652 INFO L225 Difference]: With dead ends: 540 [2024-11-22 01:50:23,652 INFO L226 Difference]: Without dead ends: 421 [2024-11-22 01:50:23,653 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 180 GetRequests, 175 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-11-22 01:50:23,654 INFO L432 NwaCegarLoop]: 207 mSDtfsCounter, 260 mSDsluCounter, 611 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 263 SdHoareTripleChecker+Valid, 818 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 01:50:23,654 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [263 Valid, 818 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 01:50:23,655 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 421 states. [2024-11-22 01:50:23,677 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 421 to 393. [2024-11-22 01:50:23,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 393 states, 355 states have (on average 1.647887323943662) internal successors, (585), 359 states have internal predecessors, (585), 24 states have call successors, (24), 13 states have call predecessors, (24), 13 states have return successors, (26), 20 states have call predecessors, (26), 23 states have call successors, (26) [2024-11-22 01:50:23,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 393 states to 393 states and 635 transitions. [2024-11-22 01:50:23,681 INFO L78 Accepts]: Start accepts. Automaton has 393 states and 635 transitions. Word has length 89 [2024-11-22 01:50:23,681 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:50:23,681 INFO L471 AbstractCegarLoop]: Abstraction has 393 states and 635 transitions. [2024-11-22 01:50:23,681 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 7 states have internal predecessors, (81), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2024-11-22 01:50:23,681 INFO L276 IsEmpty]: Start isEmpty. Operand 393 states and 635 transitions. [2024-11-22 01:50:23,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2024-11-22 01:50:23,685 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:50:23,686 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 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] [2024-11-22 01:50:23,695 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-22 01:50:23,886 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 01:50:23,886 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:50:23,887 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:50:23,887 INFO L85 PathProgramCache]: Analyzing trace with hash 1610975938, now seen corresponding path program 1 times [2024-11-22 01:50:23,887 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:50:23,887 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1504422262] [2024-11-22 01:50:23,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:50:23,887 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:50:23,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:50:23,950 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2024-11-22 01:50:23,950 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:50:23,950 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1504422262] [2024-11-22 01:50:23,951 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1504422262] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:50:23,951 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 01:50:23,951 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 01:50:23,951 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1864586225] [2024-11-22 01:50:23,952 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:50:23,953 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 01:50:23,953 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:50:23,954 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 01:50:23,954 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 01:50:23,954 INFO L87 Difference]: Start difference. First operand 393 states and 635 transitions. Second operand has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-22 01:50:23,975 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:50:23,975 INFO L93 Difference]: Finished difference Result 944 states and 1559 transitions. [2024-11-22 01:50:23,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 01:50:23,976 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 96 [2024-11-22 01:50:23,977 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:50:23,981 INFO L225 Difference]: With dead ends: 944 [2024-11-22 01:50:23,981 INFO L226 Difference]: Without dead ends: 579 [2024-11-22 01:50:23,982 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 01:50:23,984 INFO L432 NwaCegarLoop]: 209 mSDtfsCounter, 65 mSDsluCounter, 204 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 413 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 01:50:23,984 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 413 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 01:50:23,985 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 579 states. [2024-11-22 01:50:24,005 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 579 to 569. [2024-11-22 01:50:24,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 569 states, 531 states have (on average 1.6779661016949152) internal successors, (891), 535 states have internal predecessors, (891), 24 states have call successors, (24), 13 states have call predecessors, (24), 13 states have return successors, (26), 20 states have call predecessors, (26), 23 states have call successors, (26) [2024-11-22 01:50:24,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 569 states to 569 states and 941 transitions. [2024-11-22 01:50:24,010 INFO L78 Accepts]: Start accepts. Automaton has 569 states and 941 transitions. Word has length 96 [2024-11-22 01:50:24,011 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:50:24,011 INFO L471 AbstractCegarLoop]: Abstraction has 569 states and 941 transitions. [2024-11-22 01:50:24,011 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-22 01:50:24,011 INFO L276 IsEmpty]: Start isEmpty. Operand 569 states and 941 transitions. [2024-11-22 01:50:24,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2024-11-22 01:50:24,014 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:50:24,015 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 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] [2024-11-22 01:50:24,015 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-22 01:50:24,015 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:50:24,015 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:50:24,016 INFO L85 PathProgramCache]: Analyzing trace with hash 1769666614, now seen corresponding path program 1 times [2024-11-22 01:50:24,016 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:50:24,016 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1571315911] [2024-11-22 01:50:24,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:50:24,016 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:50:24,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:50:24,074 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2024-11-22 01:50:24,074 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:50:24,074 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1571315911] [2024-11-22 01:50:24,074 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1571315911] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:50:24,075 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 01:50:24,075 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 01:50:24,075 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [838686667] [2024-11-22 01:50:24,075 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:50:24,075 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 01:50:24,076 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:50:24,076 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 01:50:24,076 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 01:50:24,077 INFO L87 Difference]: Start difference. First operand 569 states and 941 transitions. Second operand has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-22 01:50:24,099 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:50:24,100 INFO L93 Difference]: Finished difference Result 1343 states and 2259 transitions. [2024-11-22 01:50:24,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 01:50:24,101 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 97 [2024-11-22 01:50:24,101 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:50:24,105 INFO L225 Difference]: With dead ends: 1343 [2024-11-22 01:50:24,106 INFO L226 Difference]: Without dead ends: 820 [2024-11-22 01:50:24,107 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 01:50:24,108 INFO L432 NwaCegarLoop]: 208 mSDtfsCounter, 63 mSDsluCounter, 196 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 404 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 01:50:24,108 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [64 Valid, 404 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 01:50:24,109 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 820 states. [2024-11-22 01:50:24,149 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 820 to 810. [2024-11-22 01:50:24,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 810 states, 772 states have (on average 1.694300518134715) internal successors, (1308), 776 states have internal predecessors, (1308), 24 states have call successors, (24), 13 states have call predecessors, (24), 13 states have return successors, (26), 20 states have call predecessors, (26), 23 states have call successors, (26) [2024-11-22 01:50:24,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 810 states to 810 states and 1358 transitions. [2024-11-22 01:50:24,156 INFO L78 Accepts]: Start accepts. Automaton has 810 states and 1358 transitions. Word has length 97 [2024-11-22 01:50:24,156 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:50:24,156 INFO L471 AbstractCegarLoop]: Abstraction has 810 states and 1358 transitions. [2024-11-22 01:50:24,157 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-22 01:50:24,157 INFO L276 IsEmpty]: Start isEmpty. Operand 810 states and 1358 transitions. [2024-11-22 01:50:24,159 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2024-11-22 01:50:24,159 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:50:24,159 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 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] [2024-11-22 01:50:24,159 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-22 01:50:24,160 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:50:24,160 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:50:24,160 INFO L85 PathProgramCache]: Analyzing trace with hash -2058832220, now seen corresponding path program 1 times [2024-11-22 01:50:24,160 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:50:24,160 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [712345023] [2024-11-22 01:50:24,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:50:24,161 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:50:24,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:50:24,217 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2024-11-22 01:50:24,218 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:50:24,218 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [712345023] [2024-11-22 01:50:24,218 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [712345023] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:50:24,218 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 01:50:24,218 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 01:50:24,218 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1370536328] [2024-11-22 01:50:24,218 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:50:24,219 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 01:50:24,219 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:50:24,219 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 01:50:24,220 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 01:50:24,220 INFO L87 Difference]: Start difference. First operand 810 states and 1358 transitions. Second operand has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-22 01:50:24,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:50:24,247 INFO L93 Difference]: Finished difference Result 1992 states and 3380 transitions. [2024-11-22 01:50:24,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 01:50:24,248 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 98 [2024-11-22 01:50:24,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:50:24,254 INFO L225 Difference]: With dead ends: 1992 [2024-11-22 01:50:24,254 INFO L226 Difference]: Without dead ends: 1247 [2024-11-22 01:50:24,256 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 01:50:24,257 INFO L432 NwaCegarLoop]: 208 mSDtfsCounter, 61 mSDsluCounter, 204 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 412 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 01:50:24,257 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 412 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 01:50:24,258 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1247 states. [2024-11-22 01:50:24,285 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1247 to 1237. [2024-11-22 01:50:24,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1237 states, 1199 states have (on average 1.6955796497080902) internal successors, (2033), 1203 states have internal predecessors, (2033), 24 states have call successors, (24), 13 states have call predecessors, (24), 13 states have return successors, (26), 20 states have call predecessors, (26), 23 states have call successors, (26) [2024-11-22 01:50:24,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1237 states to 1237 states and 2083 transitions. [2024-11-22 01:50:24,294 INFO L78 Accepts]: Start accepts. Automaton has 1237 states and 2083 transitions. Word has length 98 [2024-11-22 01:50:24,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:50:24,294 INFO L471 AbstractCegarLoop]: Abstraction has 1237 states and 2083 transitions. [2024-11-22 01:50:24,295 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-22 01:50:24,295 INFO L276 IsEmpty]: Start isEmpty. Operand 1237 states and 2083 transitions. [2024-11-22 01:50:24,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2024-11-22 01:50:24,298 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:50:24,298 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 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] [2024-11-22 01:50:24,298 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-22 01:50:24,299 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:50:24,299 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:50:24,299 INFO L85 PathProgramCache]: Analyzing trace with hash -31689624, now seen corresponding path program 1 times [2024-11-22 01:50:24,299 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:50:24,299 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [395006918] [2024-11-22 01:50:24,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:50:24,300 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:50:24,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:50:24,354 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2024-11-22 01:50:24,354 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:50:24,354 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [395006918] [2024-11-22 01:50:24,355 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [395006918] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:50:24,355 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 01:50:24,355 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 01:50:24,355 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [350458331] [2024-11-22 01:50:24,355 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:50:24,355 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 01:50:24,356 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:50:24,356 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 01:50:24,356 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 01:50:24,357 INFO L87 Difference]: Start difference. First operand 1237 states and 2083 transitions. Second operand has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-22 01:50:24,392 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:50:24,392 INFO L93 Difference]: Finished difference Result 3077 states and 5235 transitions. [2024-11-22 01:50:24,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 01:50:24,393 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 99 [2024-11-22 01:50:24,394 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:50:24,402 INFO L225 Difference]: With dead ends: 3077 [2024-11-22 01:50:24,402 INFO L226 Difference]: Without dead ends: 1953 [2024-11-22 01:50:24,405 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 01:50:24,406 INFO L432 NwaCegarLoop]: 208 mSDtfsCounter, 59 mSDsluCounter, 204 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 412 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 01:50:24,406 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [60 Valid, 412 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 01:50:24,408 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1953 states. [2024-11-22 01:50:24,456 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1953 to 1943. [2024-11-22 01:50:24,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1943 states, 1905 states have (on average 1.6918635170603675) internal successors, (3223), 1909 states have internal predecessors, (3223), 24 states have call successors, (24), 13 states have call predecessors, (24), 13 states have return successors, (26), 20 states have call predecessors, (26), 23 states have call successors, (26) [2024-11-22 01:50:24,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1943 states to 1943 states and 3273 transitions. [2024-11-22 01:50:24,468 INFO L78 Accepts]: Start accepts. Automaton has 1943 states and 3273 transitions. Word has length 99 [2024-11-22 01:50:24,468 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:50:24,469 INFO L471 AbstractCegarLoop]: Abstraction has 1943 states and 3273 transitions. [2024-11-22 01:50:24,469 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-22 01:50:24,469 INFO L276 IsEmpty]: Start isEmpty. Operand 1943 states and 3273 transitions. [2024-11-22 01:50:24,474 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2024-11-22 01:50:24,474 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:50:24,474 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 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] [2024-11-22 01:50:24,475 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-22 01:50:24,475 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:50:24,475 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:50:24,475 INFO L85 PathProgramCache]: Analyzing trace with hash 2130304262, now seen corresponding path program 1 times [2024-11-22 01:50:24,475 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:50:24,476 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1591012835] [2024-11-22 01:50:24,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:50:24,476 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:50:24,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:50:24,569 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2024-11-22 01:50:24,569 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:50:24,569 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1591012835] [2024-11-22 01:50:24,569 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1591012835] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:50:24,569 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 01:50:24,570 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 01:50:24,570 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [396059793] [2024-11-22 01:50:24,570 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:50:24,570 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 01:50:24,570 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:50:24,571 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 01:50:24,571 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 01:50:24,571 INFO L87 Difference]: Start difference. First operand 1943 states and 3273 transitions. Second operand has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-22 01:50:24,623 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:50:24,623 INFO L93 Difference]: Finished difference Result 4918 states and 8365 transitions. [2024-11-22 01:50:24,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 01:50:24,624 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 100 [2024-11-22 01:50:24,624 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:50:24,638 INFO L225 Difference]: With dead ends: 4918 [2024-11-22 01:50:24,639 INFO L226 Difference]: Without dead ends: 3168 [2024-11-22 01:50:24,643 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 01:50:24,644 INFO L432 NwaCegarLoop]: 208 mSDtfsCounter, 57 mSDsluCounter, 204 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 412 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 01:50:24,644 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 412 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 01:50:24,647 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3168 states. [2024-11-22 01:50:24,732 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3168 to 3158. [2024-11-22 01:50:24,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3158 states, 3120 states have (on average 1.6862179487179487) internal successors, (5261), 3124 states have internal predecessors, (5261), 24 states have call successors, (24), 13 states have call predecessors, (24), 13 states have return successors, (26), 20 states have call predecessors, (26), 23 states have call successors, (26) [2024-11-22 01:50:24,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3158 states to 3158 states and 5311 transitions. [2024-11-22 01:50:24,752 INFO L78 Accepts]: Start accepts. Automaton has 3158 states and 5311 transitions. Word has length 100 [2024-11-22 01:50:24,753 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:50:24,753 INFO L471 AbstractCegarLoop]: Abstraction has 3158 states and 5311 transitions. [2024-11-22 01:50:24,753 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-22 01:50:24,753 INFO L276 IsEmpty]: Start isEmpty. Operand 3158 states and 5311 transitions. [2024-11-22 01:50:24,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-11-22 01:50:24,761 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:50:24,761 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 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] [2024-11-22 01:50:24,761 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-22 01:50:24,761 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:50:24,762 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:50:24,762 INFO L85 PathProgramCache]: Analyzing trace with hash -1801857530, now seen corresponding path program 1 times [2024-11-22 01:50:24,762 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:50:24,762 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2007919129] [2024-11-22 01:50:24,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:50:24,762 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:50:24,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:50:24,822 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2024-11-22 01:50:24,822 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:50:24,822 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2007919129] [2024-11-22 01:50:24,822 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2007919129] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:50:24,823 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 01:50:24,823 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 01:50:24,823 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1374317608] [2024-11-22 01:50:24,823 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:50:24,823 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 01:50:24,823 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:50:24,824 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 01:50:24,824 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 01:50:24,825 INFO L87 Difference]: Start difference. First operand 3158 states and 5311 transitions. Second operand has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-22 01:50:24,933 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:50:24,933 INFO L93 Difference]: Finished difference Result 7555 states and 12922 transitions. [2024-11-22 01:50:24,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 01:50:24,934 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 101 [2024-11-22 01:50:24,934 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:50:24,953 INFO L225 Difference]: With dead ends: 7555 [2024-11-22 01:50:24,953 INFO L226 Difference]: Without dead ends: 5030 [2024-11-22 01:50:24,956 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 01:50:24,956 INFO L432 NwaCegarLoop]: 208 mSDtfsCounter, 55 mSDsluCounter, 196 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 404 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 01:50:24,956 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 404 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 01:50:24,960 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5030 states. [2024-11-22 01:50:25,066 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5030 to 5020. [2024-11-22 01:50:25,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5020 states, 4982 states have (on average 1.6916900843034925) internal successors, (8428), 4986 states have internal predecessors, (8428), 24 states have call successors, (24), 13 states have call predecessors, (24), 13 states have return successors, (26), 20 states have call predecessors, (26), 23 states have call successors, (26) [2024-11-22 01:50:25,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5020 states to 5020 states and 8478 transitions. [2024-11-22 01:50:25,092 INFO L78 Accepts]: Start accepts. Automaton has 5020 states and 8478 transitions. Word has length 101 [2024-11-22 01:50:25,092 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:50:25,092 INFO L471 AbstractCegarLoop]: Abstraction has 5020 states and 8478 transitions. [2024-11-22 01:50:25,093 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-22 01:50:25,093 INFO L276 IsEmpty]: Start isEmpty. Operand 5020 states and 8478 transitions. [2024-11-22 01:50:25,105 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2024-11-22 01:50:25,105 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:50:25,105 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 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] [2024-11-22 01:50:25,105 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-22 01:50:25,105 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:50:25,106 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:50:25,106 INFO L85 PathProgramCache]: Analyzing trace with hash -602375320, now seen corresponding path program 1 times [2024-11-22 01:50:25,106 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:50:25,106 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1782640626] [2024-11-22 01:50:25,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:50:25,106 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:50:25,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:50:25,169 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2024-11-22 01:50:25,170 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:50:25,170 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1782640626] [2024-11-22 01:50:25,170 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1782640626] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:50:25,170 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 01:50:25,170 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 01:50:25,171 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1115099957] [2024-11-22 01:50:25,171 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:50:25,171 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 01:50:25,171 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:50:25,172 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 01:50:25,173 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 01:50:25,173 INFO L87 Difference]: Start difference. First operand 5020 states and 8478 transitions. Second operand has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-22 01:50:25,354 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:50:25,354 INFO L93 Difference]: Finished difference Result 13011 states and 22185 transitions. [2024-11-22 01:50:25,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 01:50:25,355 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 102 [2024-11-22 01:50:25,355 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:50:25,394 INFO L225 Difference]: With dead ends: 13011 [2024-11-22 01:50:25,394 INFO L226 Difference]: Without dead ends: 8756 [2024-11-22 01:50:25,403 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 01:50:25,404 INFO L432 NwaCegarLoop]: 208 mSDtfsCounter, 53 mSDsluCounter, 204 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 412 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 01:50:25,404 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [54 Valid, 412 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 01:50:25,412 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8756 states. [2024-11-22 01:50:25,647 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8756 to 8746. [2024-11-22 01:50:25,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8746 states, 8708 states have (on average 1.6783417547083141) internal successors, (14615), 8712 states have internal predecessors, (14615), 24 states have call successors, (24), 13 states have call predecessors, (24), 13 states have return successors, (26), 20 states have call predecessors, (26), 23 states have call successors, (26) [2024-11-22 01:50:25,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8746 states to 8746 states and 14665 transitions. [2024-11-22 01:50:25,706 INFO L78 Accepts]: Start accepts. Automaton has 8746 states and 14665 transitions. Word has length 102 [2024-11-22 01:50:25,706 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:50:25,707 INFO L471 AbstractCegarLoop]: Abstraction has 8746 states and 14665 transitions. [2024-11-22 01:50:25,707 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-22 01:50:25,708 INFO L276 IsEmpty]: Start isEmpty. Operand 8746 states and 14665 transitions. [2024-11-22 01:50:25,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2024-11-22 01:50:25,732 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:50:25,732 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 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] [2024-11-22 01:50:25,733 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-22 01:50:25,733 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:50:25,733 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:50:25,733 INFO L85 PathProgramCache]: Analyzing trace with hash -515556936, now seen corresponding path program 1 times [2024-11-22 01:50:25,734 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:50:25,734 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1121773651] [2024-11-22 01:50:25,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:50:25,734 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:50:25,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:50:25,855 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2024-11-22 01:50:25,855 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:50:25,855 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1121773651] [2024-11-22 01:50:25,855 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1121773651] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:50:25,855 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 01:50:25,856 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 01:50:25,856 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [670924397] [2024-11-22 01:50:25,856 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:50:25,856 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 01:50:25,856 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:50:25,857 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 01:50:25,857 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 01:50:25,858 INFO L87 Difference]: Start difference. First operand 8746 states and 14665 transitions. Second operand has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-22 01:50:26,093 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:50:26,094 INFO L93 Difference]: Finished difference Result 23358 states and 39480 transitions. [2024-11-22 01:50:26,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 01:50:26,094 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 103 [2024-11-22 01:50:26,094 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:50:26,155 INFO L225 Difference]: With dead ends: 23358 [2024-11-22 01:50:26,155 INFO L226 Difference]: Without dead ends: 15735 [2024-11-22 01:50:26,174 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 01:50:26,175 INFO L432 NwaCegarLoop]: 208 mSDtfsCounter, 51 mSDsluCounter, 204 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 412 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 01:50:26,175 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [52 Valid, 412 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 01:50:26,191 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15735 states. [2024-11-22 01:50:26,714 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15735 to 15725. [2024-11-22 01:50:26,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15725 states, 15687 states have (on average 1.6639892904953146) internal successors, (26103), 15691 states have internal predecessors, (26103), 24 states have call successors, (24), 13 states have call predecessors, (24), 13 states have return successors, (26), 20 states have call predecessors, (26), 23 states have call successors, (26) [2024-11-22 01:50:26,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15725 states to 15725 states and 26153 transitions. [2024-11-22 01:50:26,794 INFO L78 Accepts]: Start accepts. Automaton has 15725 states and 26153 transitions. Word has length 103 [2024-11-22 01:50:26,795 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:50:26,795 INFO L471 AbstractCegarLoop]: Abstraction has 15725 states and 26153 transitions. [2024-11-22 01:50:26,795 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-22 01:50:26,795 INFO L276 IsEmpty]: Start isEmpty. Operand 15725 states and 26153 transitions. [2024-11-22 01:50:26,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2024-11-22 01:50:26,825 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:50:26,826 INFO L215 NwaCegarLoop]: trace histogram [5, 4, 4, 4, 4, 3, 3, 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] [2024-11-22 01:50:26,826 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-22 01:50:26,826 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:50:26,827 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:50:26,827 INFO L85 PathProgramCache]: Analyzing trace with hash -35672739, now seen corresponding path program 2 times [2024-11-22 01:50:26,827 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:50:26,827 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1519599229] [2024-11-22 01:50:26,827 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-22 01:50:26,827 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:50:26,856 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-22 01:50:26,856 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-22 01:50:26,948 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 59 trivial. 0 not checked. [2024-11-22 01:50:26,948 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:50:26,949 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1519599229] [2024-11-22 01:50:26,949 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1519599229] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:50:26,949 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 01:50:26,949 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 01:50:26,949 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [851567643] [2024-11-22 01:50:26,949 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:50:26,950 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 01:50:26,950 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:50:26,950 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 01:50:26,950 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 01:50:26,951 INFO L87 Difference]: Start difference. First operand 15725 states and 26153 transitions. Second operand has 6 states, 6 states have (on average 9.5) internal successors, (57), 6 states have internal predecessors, (57), 2 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-22 01:50:27,353 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:50:27,354 INFO L93 Difference]: Finished difference Result 15826 states and 26287 transitions. [2024-11-22 01:50:27,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-22 01:50:27,354 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.5) internal successors, (57), 6 states have internal predecessors, (57), 2 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 104 [2024-11-22 01:50:27,355 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:50:27,409 INFO L225 Difference]: With dead ends: 15826 [2024-11-22 01:50:27,409 INFO L226 Difference]: Without dead ends: 15739 [2024-11-22 01:50:27,420 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-22 01:50:27,420 INFO L432 NwaCegarLoop]: 199 mSDtfsCounter, 21 mSDsluCounter, 772 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 971 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 01:50:27,421 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 971 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 01:50:27,440 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15739 states. [2024-11-22 01:50:27,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15739 to 15734. [2024-11-22 01:50:27,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15734 states, 15693 states have (on average 1.6637991461161028) internal successors, (26110), 15697 states have internal predecessors, (26110), 27 states have call successors, (27), 13 states have call predecessors, (27), 13 states have return successors, (29), 23 states have call predecessors, (29), 26 states have call successors, (29) [2024-11-22 01:50:27,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15734 states to 15734 states and 26166 transitions. [2024-11-22 01:50:27,951 INFO L78 Accepts]: Start accepts. Automaton has 15734 states and 26166 transitions. Word has length 104 [2024-11-22 01:50:27,951 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:50:27,951 INFO L471 AbstractCegarLoop]: Abstraction has 15734 states and 26166 transitions. [2024-11-22 01:50:27,952 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.5) internal successors, (57), 6 states have internal predecessors, (57), 2 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-22 01:50:27,952 INFO L276 IsEmpty]: Start isEmpty. Operand 15734 states and 26166 transitions. [2024-11-22 01:50:27,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2024-11-22 01:50:27,983 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:50:27,983 INFO L215 NwaCegarLoop]: trace histogram [5, 4, 4, 4, 4, 3, 3, 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] [2024-11-22 01:50:27,984 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-22 01:50:27,984 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:50:27,984 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:50:27,984 INFO L85 PathProgramCache]: Analyzing trace with hash 738736398, now seen corresponding path program 1 times [2024-11-22 01:50:27,984 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:50:27,984 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1431082058] [2024-11-22 01:50:27,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:50:27,985 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:50:28,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:50:28,096 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2024-11-22 01:50:28,096 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:50:28,096 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1431082058] [2024-11-22 01:50:28,096 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1431082058] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:50:28,096 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 01:50:28,096 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 01:50:28,096 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1685882993] [2024-11-22 01:50:28,096 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:50:28,097 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 01:50:28,097 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:50:28,097 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 01:50:28,097 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-22 01:50:28,098 INFO L87 Difference]: Start difference. First operand 15734 states and 26166 transitions. Second operand has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-22 01:50:28,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:50:28,406 INFO L93 Difference]: Finished difference Result 29669 states and 49584 transitions. [2024-11-22 01:50:28,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 01:50:28,407 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 105 [2024-11-22 01:50:28,407 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:50:28,450 INFO L225 Difference]: With dead ends: 29669 [2024-11-22 01:50:28,450 INFO L226 Difference]: Without dead ends: 15744 [2024-11-22 01:50:28,471 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-22 01:50:28,471 INFO L432 NwaCegarLoop]: 274 mSDtfsCounter, 64 mSDsluCounter, 751 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 1025 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 01:50:28,472 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [65 Valid, 1025 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 01:50:28,488 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15744 states. [2024-11-22 01:50:28,865 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15744 to 15734. [2024-11-22 01:50:28,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15734 states, 15693 states have (on average 1.6468489135283246) internal successors, (25844), 15697 states have internal predecessors, (25844), 27 states have call successors, (27), 13 states have call predecessors, (27), 13 states have return successors, (29), 23 states have call predecessors, (29), 26 states have call successors, (29) [2024-11-22 01:50:28,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15734 states to 15734 states and 25900 transitions. [2024-11-22 01:50:28,943 INFO L78 Accepts]: Start accepts. Automaton has 15734 states and 25900 transitions. Word has length 105 [2024-11-22 01:50:28,943 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:50:28,943 INFO L471 AbstractCegarLoop]: Abstraction has 15734 states and 25900 transitions. [2024-11-22 01:50:28,943 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-22 01:50:28,943 INFO L276 IsEmpty]: Start isEmpty. Operand 15734 states and 25900 transitions. [2024-11-22 01:50:28,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2024-11-22 01:50:28,976 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:50:28,976 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 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] [2024-11-22 01:50:28,977 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-22 01:50:28,977 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:50:28,977 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:50:28,977 INFO L85 PathProgramCache]: Analyzing trace with hash -302985279, now seen corresponding path program 1 times [2024-11-22 01:50:28,977 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:50:28,977 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [748337414] [2024-11-22 01:50:28,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:50:28,978 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:50:28,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:50:29,046 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2024-11-22 01:50:29,047 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:50:29,047 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [748337414] [2024-11-22 01:50:29,047 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [748337414] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:50:29,047 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 01:50:29,047 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 01:50:29,047 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1181755333] [2024-11-22 01:50:29,048 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:50:29,048 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 01:50:29,048 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:50:29,049 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 01:50:29,049 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 01:50:29,049 INFO L87 Difference]: Start difference. First operand 15734 states and 25900 transitions. Second operand has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-22 01:50:29,470 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:50:29,471 INFO L93 Difference]: Finished difference Result 43220 states and 71498 transitions. [2024-11-22 01:50:29,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 01:50:29,471 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 105 [2024-11-22 01:50:29,472 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:50:29,569 INFO L225 Difference]: With dead ends: 43220 [2024-11-22 01:50:29,570 INFO L226 Difference]: Without dead ends: 29050 [2024-11-22 01:50:29,602 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 01:50:29,603 INFO L432 NwaCegarLoop]: 208 mSDtfsCounter, 49 mSDsluCounter, 204 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 412 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 01:50:29,603 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [50 Valid, 412 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 01:50:29,634 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29050 states. [2024-11-22 01:50:30,309 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29050 to 29040. [2024-11-22 01:50:30,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29040 states, 28999 states have (on average 1.628987206455395) internal successors, (47239), 29003 states have internal predecessors, (47239), 27 states have call successors, (27), 13 states have call predecessors, (27), 13 states have return successors, (29), 23 states have call predecessors, (29), 26 states have call successors, (29) [2024-11-22 01:50:30,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29040 states to 29040 states and 47295 transitions. [2024-11-22 01:50:30,438 INFO L78 Accepts]: Start accepts. Automaton has 29040 states and 47295 transitions. Word has length 105 [2024-11-22 01:50:30,438 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:50:30,438 INFO L471 AbstractCegarLoop]: Abstraction has 29040 states and 47295 transitions. [2024-11-22 01:50:30,439 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-22 01:50:30,440 INFO L276 IsEmpty]: Start isEmpty. Operand 29040 states and 47295 transitions. [2024-11-22 01:50:30,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2024-11-22 01:50:30,479 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:50:30,479 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 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] [2024-11-22 01:50:30,480 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-22 01:50:30,480 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:50:30,480 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:50:30,480 INFO L85 PathProgramCache]: Analyzing trace with hash -952705867, now seen corresponding path program 1 times [2024-11-22 01:50:30,481 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:50:30,481 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2015816177] [2024-11-22 01:50:30,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:50:30,481 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:50:30,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:50:30,770 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2024-11-22 01:50:30,771 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:50:30,771 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2015816177] [2024-11-22 01:50:30,771 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2015816177] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:50:30,771 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 01:50:30,771 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 01:50:30,772 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [633323571] [2024-11-22 01:50:30,772 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:50:30,772 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 01:50:30,773 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:50:30,774 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 01:50:30,774 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 01:50:30,774 INFO L87 Difference]: Start difference. First operand 29040 states and 47295 transitions. Second operand has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-22 01:50:31,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:50:31,351 INFO L93 Difference]: Finished difference Result 81645 states and 133301 transitions. [2024-11-22 01:50:31,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 01:50:31,352 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 106 [2024-11-22 01:50:31,352 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:50:31,542 INFO L225 Difference]: With dead ends: 81645 [2024-11-22 01:50:31,542 INFO L226 Difference]: Without dead ends: 54701 [2024-11-22 01:50:31,595 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 01:50:31,595 INFO L432 NwaCegarLoop]: 208 mSDtfsCounter, 47 mSDsluCounter, 204 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 412 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 01:50:31,596 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 412 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 01:50:31,646 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54701 states. [2024-11-22 01:50:33,180 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54701 to 54691. [2024-11-22 01:50:33,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54691 states, 54650 states have (on average 1.6081427264409882) internal successors, (87885), 54654 states have internal predecessors, (87885), 27 states have call successors, (27), 13 states have call predecessors, (27), 13 states have return successors, (29), 23 states have call predecessors, (29), 26 states have call successors, (29) [2024-11-22 01:50:33,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54691 states to 54691 states and 87941 transitions. [2024-11-22 01:50:33,547 INFO L78 Accepts]: Start accepts. Automaton has 54691 states and 87941 transitions. Word has length 106 [2024-11-22 01:50:33,547 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:50:33,548 INFO L471 AbstractCegarLoop]: Abstraction has 54691 states and 87941 transitions. [2024-11-22 01:50:33,548 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-22 01:50:33,548 INFO L276 IsEmpty]: Start isEmpty. Operand 54691 states and 87941 transitions. [2024-11-22 01:50:33,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-11-22 01:50:33,612 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:50:33,612 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 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] [2024-11-22 01:50:33,613 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-22 01:50:33,613 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:50:33,613 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:50:33,613 INFO L85 PathProgramCache]: Analyzing trace with hash 102783775, now seen corresponding path program 1 times [2024-11-22 01:50:33,614 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:50:33,614 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [989621216] [2024-11-22 01:50:33,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:50:33,614 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:50:33,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:50:33,680 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2024-11-22 01:50:33,680 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:50:33,680 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [989621216] [2024-11-22 01:50:33,680 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [989621216] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:50:33,680 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 01:50:33,681 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 01:50:33,681 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1456007728] [2024-11-22 01:50:33,681 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:50:33,683 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 01:50:33,683 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:50:33,684 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 01:50:33,684 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 01:50:33,684 INFO L87 Difference]: Start difference. First operand 54691 states and 87941 transitions. Second operand has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-22 01:50:35,078 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:50:35,078 INFO L93 Difference]: Finished difference Result 104092 states and 167073 transitions. [2024-11-22 01:50:35,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 01:50:35,079 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 107 [2024-11-22 01:50:35,080 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:50:35,386 INFO L225 Difference]: With dead ends: 104092 [2024-11-22 01:50:35,386 INFO L226 Difference]: Without dead ends: 103964 [2024-11-22 01:50:35,430 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 01:50:35,431 INFO L432 NwaCegarLoop]: 217 mSDtfsCounter, 43 mSDsluCounter, 207 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 424 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 01:50:35,432 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 424 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 01:50:35,545 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103964 states. [2024-11-22 01:50:37,623 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103964 to 103954. [2024-11-22 01:50:37,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 103954 states, 103913 states have (on average 1.5849508723643817) internal successors, (164697), 103917 states have internal predecessors, (164697), 27 states have call successors, (27), 13 states have call predecessors, (27), 13 states have return successors, (29), 23 states have call predecessors, (29), 26 states have call successors, (29) [2024-11-22 01:50:38,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103954 states to 103954 states and 164753 transitions. [2024-11-22 01:50:38,646 INFO L78 Accepts]: Start accepts. Automaton has 103954 states and 164753 transitions. Word has length 107 [2024-11-22 01:50:38,647 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:50:38,647 INFO L471 AbstractCegarLoop]: Abstraction has 103954 states and 164753 transitions. [2024-11-22 01:50:38,647 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-22 01:50:38,647 INFO L276 IsEmpty]: Start isEmpty. Operand 103954 states and 164753 transitions. [2024-11-22 01:50:38,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-11-22 01:50:38,739 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:50:38,739 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 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] [2024-11-22 01:50:38,740 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-22 01:50:38,741 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:50:38,741 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:50:38,741 INFO L85 PathProgramCache]: Analyzing trace with hash 255371607, now seen corresponding path program 1 times [2024-11-22 01:50:38,741 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:50:38,742 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1994932304] [2024-11-22 01:50:38,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:50:38,742 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:50:38,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:50:38,879 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2024-11-22 01:50:38,879 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:50:38,880 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1994932304] [2024-11-22 01:50:38,880 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1994932304] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:50:38,880 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 01:50:38,880 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 01:50:38,880 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [712365611] [2024-11-22 01:50:38,880 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:50:38,881 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 01:50:38,881 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:50:38,881 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 01:50:38,882 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-22 01:50:38,882 INFO L87 Difference]: Start difference. First operand 103954 states and 164753 transitions. Second operand has 5 states, 5 states have (on average 15.4) internal successors, (77), 5 states have internal predecessors, (77), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-22 01:50:40,541 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:50:40,541 INFO L93 Difference]: Finished difference Result 204658 states and 324811 transitions. [2024-11-22 01:50:40,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-22 01:50:40,542 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 5 states have internal predecessors, (77), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 108 [2024-11-22 01:50:40,542 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:50:41,269 INFO L225 Difference]: With dead ends: 204658 [2024-11-22 01:50:41,269 INFO L226 Difference]: Without dead ends: 204562 [2024-11-22 01:50:41,338 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-22 01:50:41,339 INFO L432 NwaCegarLoop]: 208 mSDtfsCounter, 147 mSDsluCounter, 589 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 147 SdHoareTripleChecker+Valid, 797 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 01:50:41,340 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [147 Valid, 797 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 01:50:41,566 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 204562 states. [2024-11-22 01:50:45,603 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 204562 to 204554. [2024-11-22 01:50:45,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 204554 states, 204479 states have (on average 1.5873121445233984) internal successors, (324572), 204485 states have internal predecessors, (324572), 51 states have call successors, (51), 25 states have call predecessors, (51), 23 states have return successors, (52), 43 states have call predecessors, (52), 49 states have call successors, (52) [2024-11-22 01:50:47,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 204554 states to 204554 states and 324675 transitions. [2024-11-22 01:50:47,510 INFO L78 Accepts]: Start accepts. Automaton has 204554 states and 324675 transitions. Word has length 108 [2024-11-22 01:50:47,511 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:50:47,511 INFO L471 AbstractCegarLoop]: Abstraction has 204554 states and 324675 transitions. [2024-11-22 01:50:47,511 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 5 states have internal predecessors, (77), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-22 01:50:47,511 INFO L276 IsEmpty]: Start isEmpty. Operand 204554 states and 324675 transitions. [2024-11-22 01:50:47,631 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-11-22 01:50:47,632 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:50:47,632 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 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] [2024-11-22 01:50:47,632 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-22 01:50:47,632 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:50:47,633 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:50:47,633 INFO L85 PathProgramCache]: Analyzing trace with hash -652518926, now seen corresponding path program 1 times [2024-11-22 01:50:47,633 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:50:47,633 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2004918695] [2024-11-22 01:50:47,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:50:47,634 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:50:47,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:50:48,001 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-22 01:50:48,002 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:50:48,002 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2004918695] [2024-11-22 01:50:48,002 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2004918695] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 01:50:48,002 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1532700503] [2024-11-22 01:50:48,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:50:48,002 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 01:50:48,003 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 01:50:48,006 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) [2024-11-22 01:50:48,007 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-22 01:50:48,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:50:48,301 INFO L255 TraceCheckSpWp]: Trace formula consists of 871 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-11-22 01:50:48,308 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 01:50:48,612 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-22 01:50:48,613 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 01:50:48,613 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1532700503] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:50:48,613 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 01:50:48,613 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [12] total 22 [2024-11-22 01:50:48,613 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [204327943] [2024-11-22 01:50:48,613 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:50:48,614 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-22 01:50:48,614 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:50:48,615 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-22 01:50:48,615 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=411, Unknown=0, NotChecked=0, Total=462 [2024-11-22 01:50:48,615 INFO L87 Difference]: Start difference. First operand 204554 states and 324675 transitions. Second operand has 12 states, 11 states have (on average 7.818181818181818) internal successors, (86), 10 states have internal predecessors, (86), 5 states have call successors, (11), 5 states have call predecessors, (11), 6 states have return successors, (9), 6 states have call predecessors, (9), 5 states have call successors, (9) [2024-11-22 01:50:51,187 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:50:51,188 INFO L93 Difference]: Finished difference Result 205050 states and 325379 transitions. [2024-11-22 01:50:51,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-22 01:50:51,188 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 7.818181818181818) internal successors, (86), 10 states have internal predecessors, (86), 5 states have call successors, (11), 5 states have call predecessors, (11), 6 states have return successors, (9), 6 states have call predecessors, (9), 5 states have call successors, (9) Word has length 109 [2024-11-22 01:50:51,189 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:50:51,859 INFO L225 Difference]: With dead ends: 205050 [2024-11-22 01:50:51,859 INFO L226 Difference]: Without dead ends: 204850 [2024-11-22 01:50:51,926 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 135 GetRequests, 102 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 120 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=129, Invalid=1061, Unknown=0, NotChecked=0, Total=1190 [2024-11-22 01:50:51,927 INFO L432 NwaCegarLoop]: 225 mSDtfsCounter, 474 mSDsluCounter, 1785 mSDsCounter, 0 mSdLazyCounter, 360 mSolverCounterSat, 90 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 475 SdHoareTripleChecker+Valid, 2010 SdHoareTripleChecker+Invalid, 450 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 90 IncrementalHoareTripleChecker+Valid, 360 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-22 01:50:51,927 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [475 Valid, 2010 Invalid, 450 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [90 Valid, 360 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-22 01:50:52,110 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 204850 states. [2024-11-22 01:50:56,285 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 204850 to 204786. [2024-11-22 01:50:56,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 204786 states, 204657 states have (on average 1.58708473201503) internal successors, (324808), 204661 states have internal predecessors, (324808), 85 states have call successors, (85), 39 states have call predecessors, (85), 43 states have return successors, (110), 85 states have call predecessors, (110), 81 states have call successors, (110) [2024-11-22 01:50:57,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 204786 states to 204786 states and 325003 transitions. [2024-11-22 01:50:57,239 INFO L78 Accepts]: Start accepts. Automaton has 204786 states and 325003 transitions. Word has length 109 [2024-11-22 01:50:57,239 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:50:57,240 INFO L471 AbstractCegarLoop]: Abstraction has 204786 states and 325003 transitions. [2024-11-22 01:50:57,240 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 7.818181818181818) internal successors, (86), 10 states have internal predecessors, (86), 5 states have call successors, (11), 5 states have call predecessors, (11), 6 states have return successors, (9), 6 states have call predecessors, (9), 5 states have call successors, (9) [2024-11-22 01:50:57,240 INFO L276 IsEmpty]: Start isEmpty. Operand 204786 states and 325003 transitions. [2024-11-22 01:50:57,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2024-11-22 01:50:57,345 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:50:57,346 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 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] [2024-11-22 01:50:57,357 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-11-22 01:50:57,546 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,SelfDestructingSolverStorable21 [2024-11-22 01:50:57,547 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:50:57,547 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:50:57,547 INFO L85 PathProgramCache]: Analyzing trace with hash -1682787130, now seen corresponding path program 1 times [2024-11-22 01:50:57,548 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:50:57,548 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [820638679] [2024-11-22 01:50:57,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:50:57,548 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:50:57,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:50:57,777 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2024-11-22 01:50:57,777 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:50:57,778 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [820638679] [2024-11-22 01:50:57,778 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [820638679] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:50:57,778 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 01:50:57,778 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-22 01:50:57,778 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1712253499] [2024-11-22 01:50:57,778 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:50:57,779 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-22 01:50:57,779 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:50:57,779 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-22 01:50:57,780 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-11-22 01:50:57,780 INFO L87 Difference]: Start difference. First operand 204786 states and 325003 transitions. Second operand has 10 states, 8 states have (on average 9.875) internal successors, (79), 9 states have internal predecessors, (79), 6 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (9), 4 states have call predecessors, (9), 5 states have call successors, (9) [2024-11-22 01:51:00,272 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:51:00,273 INFO L93 Difference]: Finished difference Result 205366 states and 325813 transitions. [2024-11-22 01:51:00,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-22 01:51:00,274 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 8 states have (on average 9.875) internal successors, (79), 9 states have internal predecessors, (79), 6 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (9), 4 states have call predecessors, (9), 5 states have call successors, (9) Word has length 110 [2024-11-22 01:51:00,274 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:51:00,716 INFO L225 Difference]: With dead ends: 205366 [2024-11-22 01:51:00,716 INFO L226 Difference]: Without dead ends: 204817 [2024-11-22 01:51:00,781 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2024-11-22 01:51:00,782 INFO L432 NwaCegarLoop]: 215 mSDtfsCounter, 59 mSDsluCounter, 1693 mSDsCounter, 0 mSdLazyCounter, 108 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 1908 SdHoareTripleChecker+Invalid, 111 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 108 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 01:51:00,782 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [69 Valid, 1908 Invalid, 111 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 108 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 01:51:00,941 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 204817 states. [2024-11-22 01:51:04,749 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 204817 to 204800. [2024-11-22 01:51:04,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 204800 states, 204669 states have (on average 1.586996565185739) internal successors, (324809), 204674 states have internal predecessors, (324809), 88 states have call successors, (88), 40 states have call predecessors, (88), 42 states have return successors, (114), 85 states have call predecessors, (114), 84 states have call successors, (114) [2024-11-22 01:51:05,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 204800 states to 204800 states and 325011 transitions. [2024-11-22 01:51:05,580 INFO L78 Accepts]: Start accepts. Automaton has 204800 states and 325011 transitions. Word has length 110 [2024-11-22 01:51:05,581 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:51:05,581 INFO L471 AbstractCegarLoop]: Abstraction has 204800 states and 325011 transitions. [2024-11-22 01:51:05,581 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 8 states have (on average 9.875) internal successors, (79), 9 states have internal predecessors, (79), 6 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (9), 4 states have call predecessors, (9), 5 states have call successors, (9) [2024-11-22 01:51:05,581 INFO L276 IsEmpty]: Start isEmpty. Operand 204800 states and 325011 transitions. [2024-11-22 01:51:05,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2024-11-22 01:51:05,726 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:51:05,726 INFO L215 NwaCegarLoop]: trace histogram [5, 4, 4, 3, 3, 3, 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] [2024-11-22 01:51:05,726 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-22 01:51:05,726 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:51:05,727 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:51:05,727 INFO L85 PathProgramCache]: Analyzing trace with hash 781070310, now seen corresponding path program 1 times [2024-11-22 01:51:05,727 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:51:05,727 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1843388766] [2024-11-22 01:51:05,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:51:05,727 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:51:05,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:51:05,870 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 25 proven. 4 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-22 01:51:05,871 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:51:05,871 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1843388766] [2024-11-22 01:51:05,871 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1843388766] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 01:51:05,871 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [858968265] [2024-11-22 01:51:05,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:51:05,871 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 01:51:05,872 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 01:51:05,874 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 01:51:05,876 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-22 01:51:06,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:51:06,132 INFO L255 TraceCheckSpWp]: Trace formula consists of 891 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-22 01:51:06,136 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 01:51:06,183 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2024-11-22 01:51:06,183 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 01:51:06,183 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [858968265] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:51:06,183 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 01:51:06,183 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7] total 9 [2024-11-22 01:51:06,183 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [929462605] [2024-11-22 01:51:06,184 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:51:06,184 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 01:51:06,184 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:51:06,184 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 01:51:06,184 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-22 01:51:06,184 INFO L87 Difference]: Start difference. First operand 204800 states and 325011 transitions. Second operand has 4 states, 4 states have (on average 21.0) internal successors, (84), 4 states have internal predecessors, (84), 3 states have call successors, (11), 3 states have call predecessors, (11), 3 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2024-11-22 01:51:09,561 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:51:09,561 INFO L93 Difference]: Finished difference Result 406150 states and 645093 transitions. [2024-11-22 01:51:09,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 01:51:09,569 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 21.0) internal successors, (84), 4 states have internal predecessors, (84), 3 states have call successors, (11), 3 states have call predecessors, (11), 3 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) Word has length 122 [2024-11-22 01:51:09,569 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:51:10,144 INFO L225 Difference]: With dead ends: 406150 [2024-11-22 01:51:10,145 INFO L226 Difference]: Without dead ends: 204808 [2024-11-22 01:51:10,327 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 129 GetRequests, 121 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2024-11-22 01:51:10,328 INFO L432 NwaCegarLoop]: 208 mSDtfsCounter, 181 mSDsluCounter, 221 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 181 SdHoareTripleChecker+Valid, 429 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 01:51:10,329 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [181 Valid, 429 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 01:51:10,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 204808 states. [2024-11-22 01:51:14,259 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 204808 to 204804. [2024-11-22 01:51:14,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 204804 states, 204673 states have (on average 1.5667235052986959) internal successors, (320666), 204677 states have internal predecessors, (320666), 88 states have call successors, (88), 41 states have call predecessors, (88), 42 states have return successors, (112), 85 states have call predecessors, (112), 84 states have call successors, (112) [2024-11-22 01:51:15,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 204804 states to 204804 states and 320866 transitions. [2024-11-22 01:51:15,050 INFO L78 Accepts]: Start accepts. Automaton has 204804 states and 320866 transitions. Word has length 122 [2024-11-22 01:51:15,051 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:51:15,051 INFO L471 AbstractCegarLoop]: Abstraction has 204804 states and 320866 transitions. [2024-11-22 01:51:15,051 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.0) internal successors, (84), 4 states have internal predecessors, (84), 3 states have call successors, (11), 3 states have call predecessors, (11), 3 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2024-11-22 01:51:15,051 INFO L276 IsEmpty]: Start isEmpty. Operand 204804 states and 320866 transitions. [2024-11-22 01:51:15,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2024-11-22 01:51:15,254 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:51:15,254 INFO L215 NwaCegarLoop]: trace histogram [5, 4, 4, 3, 3, 3, 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] [2024-11-22 01:51:15,267 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-11-22 01:51:15,455 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 01:51:15,456 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:51:15,456 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:51:15,456 INFO L85 PathProgramCache]: Analyzing trace with hash -1954560488, now seen corresponding path program 1 times [2024-11-22 01:51:15,456 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:51:15,457 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2129704265] [2024-11-22 01:51:15,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:51:15,457 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:51:15,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:51:15,661 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2024-11-22 01:51:15,662 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:51:15,662 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2129704265] [2024-11-22 01:51:15,662 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2129704265] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:51:15,662 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 01:51:15,662 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-22 01:51:15,662 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1340844011] [2024-11-22 01:51:15,662 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:51:15,663 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-22 01:51:15,663 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:51:15,664 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-22 01:51:15,664 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-22 01:51:15,664 INFO L87 Difference]: Start difference. First operand 204804 states and 320866 transitions. Second operand has 8 states, 8 states have (on average 10.375) internal successors, (83), 8 states have internal predecessors, (83), 3 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9)