./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/product-lines/email_spec4_product33.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3289d67d Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/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_spec4_product33.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 7d58750164873693a8e41f270259eb299f067753793be4bdf6f5449bb7376f85 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-16 07:44:09,924 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-16 07:44:10,004 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-16 07:44:10,009 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-16 07:44:10,010 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-16 07:44:10,040 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-16 07:44:10,041 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-16 07:44:10,042 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-16 07:44:10,042 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-16 07:44:10,046 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-16 07:44:10,046 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-16 07:44:10,047 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-16 07:44:10,047 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-16 07:44:10,047 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-16 07:44:10,048 INFO L153 SettingsManager]: * Use SBE=true [2024-11-16 07:44:10,048 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-16 07:44:10,048 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-16 07:44:10,050 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-16 07:44:10,050 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-16 07:44:10,051 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-16 07:44:10,051 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-16 07:44:10,051 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-16 07:44:10,052 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-16 07:44:10,052 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-16 07:44:10,052 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-16 07:44:10,052 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-16 07:44:10,053 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-16 07:44:10,053 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-16 07:44:10,053 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-16 07:44:10,054 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-16 07:44:10,054 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-16 07:44:10,054 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-16 07:44:10,055 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 07:44:10,055 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-16 07:44:10,055 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-16 07:44:10,055 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-16 07:44:10,056 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-16 07:44:10,056 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-16 07:44:10,056 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-16 07:44:10,056 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-16 07:44:10,057 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-16 07:44:10,057 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-16 07:44:10,057 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7d58750164873693a8e41f270259eb299f067753793be4bdf6f5449bb7376f85 [2024-11-16 07:44:10,326 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-16 07:44:10,348 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-16 07:44:10,351 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-16 07:44:10,352 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-16 07:44:10,352 INFO L274 PluginConnector]: CDTParser initialized [2024-11-16 07:44:10,353 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/email_spec4_product33.cil.c [2024-11-16 07:44:11,834 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-16 07:44:12,141 INFO L384 CDTParser]: Found 1 translation units. [2024-11-16 07:44:12,142 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/email_spec4_product33.cil.c [2024-11-16 07:44:12,172 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d8d507021/0f6ae1fccf244ed2bd3c01cd3e3eb0c7/FLAG1b33f139a [2024-11-16 07:44:12,190 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d8d507021/0f6ae1fccf244ed2bd3c01cd3e3eb0c7 [2024-11-16 07:44:12,192 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-16 07:44:12,195 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-16 07:44:12,197 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-16 07:44:12,198 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-16 07:44:12,204 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-16 07:44:12,204 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 07:44:12" (1/1) ... [2024-11-16 07:44:12,205 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@e9d9da6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:44:12, skipping insertion in model container [2024-11-16 07:44:12,206 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 07:44:12" (1/1) ... [2024-11-16 07:44:12,275 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-16 07:44:12,569 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_spec4_product33.cil.c[11229,11242] [2024-11-16 07:44:12,870 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 07:44:12,908 INFO L200 MainTranslator]: Completed pre-run [2024-11-16 07:44:12,918 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [48] [2024-11-16 07:44:12,920 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [414] [2024-11-16 07:44:12,920 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [423] [2024-11-16 07:44:12,920 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [750] [2024-11-16 07:44:12,921 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [969] [2024-11-16 07:44:12,921 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Client.i","") [1004] [2024-11-16 07:44:12,921 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"ClientLib.i","") [1415] [2024-11-16 07:44:12,921 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Email.i","") [2480] [2024-11-16 07:44:12,922 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Util.i","") [2617] [2024-11-16 07:44:12,922 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"SignForward_spec.i","") [2634] [2024-11-16 07:44:12,922 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"EmailLib.i","") [2661] [2024-11-16 07:44:12,952 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_spec4_product33.cil.c[11229,11242] [2024-11-16 07:44:13,034 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 07:44:13,083 INFO L204 MainTranslator]: Completed translation [2024-11-16 07:44:13,084 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:44:13 WrapperNode [2024-11-16 07:44:13,084 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-16 07:44:13,085 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-16 07:44:13,085 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-16 07:44:13,085 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-16 07:44:13,092 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:44:13" (1/1) ... [2024-11-16 07:44:13,125 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:44:13" (1/1) ... [2024-11-16 07:44:13,178 INFO L138 Inliner]: procedures = 134, calls = 212, calls flagged for inlining = 65, calls inlined = 60, statements flattened = 1078 [2024-11-16 07:44:13,179 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-16 07:44:13,179 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-16 07:44:13,180 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-16 07:44:13,180 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-16 07:44:13,191 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:44:13" (1/1) ... [2024-11-16 07:44:13,191 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:44:13" (1/1) ... [2024-11-16 07:44:13,204 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:44:13" (1/1) ... [2024-11-16 07:44:13,241 INFO L175 MemorySlicer]: Split 14 memory accesses to 4 slices as follows [2, 4, 4, 4]. 29 percent of accesses are in the largest equivalence class. The 14 initializations are split as follows [2, 4, 4, 4]. The 0 writes are split as follows [0, 0, 0, 0]. [2024-11-16 07:44:13,242 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:44:13" (1/1) ... [2024-11-16 07:44:13,242 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:44:13" (1/1) ... [2024-11-16 07:44:13,263 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:44:13" (1/1) ... [2024-11-16 07:44:13,265 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:44:13" (1/1) ... [2024-11-16 07:44:13,270 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:44:13" (1/1) ... [2024-11-16 07:44:13,273 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:44:13" (1/1) ... [2024-11-16 07:44:13,281 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-16 07:44:13,282 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-16 07:44:13,282 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-16 07:44:13,282 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-16 07:44:13,283 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:44:13" (1/1) ... [2024-11-16 07:44:13,297 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 07:44:13,308 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 07:44:13,322 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) [2024-11-16 07:44:13,324 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 [2024-11-16 07:44:13,364 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2024-11-16 07:44:13,364 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2024-11-16 07:44:13,364 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2024-11-16 07:44:13,365 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2024-11-16 07:44:13,365 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2024-11-16 07:44:13,365 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2024-11-16 07:44:13,365 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2024-11-16 07:44:13,366 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2024-11-16 07:44:13,366 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2024-11-16 07:44:13,367 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2024-11-16 07:44:13,367 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2024-11-16 07:44:13,368 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2024-11-16 07:44:13,368 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2024-11-16 07:44:13,369 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2024-11-16 07:44:13,369 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2024-11-16 07:44:13,369 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2024-11-16 07:44:13,369 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2024-11-16 07:44:13,370 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2024-11-16 07:44:13,370 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2024-11-16 07:44:13,370 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2024-11-16 07:44:13,370 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2024-11-16 07:44:13,371 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2024-11-16 07:44:13,371 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2024-11-16 07:44:13,372 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2024-11-16 07:44:13,372 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2024-11-16 07:44:13,372 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2024-11-16 07:44:13,372 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-16 07:44:13,373 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2024-11-16 07:44:13,373 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2024-11-16 07:44:13,373 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2024-11-16 07:44:13,373 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2024-11-16 07:44:13,373 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2024-11-16 07:44:13,373 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2024-11-16 07:44:13,373 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2024-11-16 07:44:13,373 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2024-11-16 07:44:13,374 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2024-11-16 07:44:13,374 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2024-11-16 07:44:13,374 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2024-11-16 07:44:13,374 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2024-11-16 07:44:13,374 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2024-11-16 07:44:13,374 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2024-11-16 07:44:13,374 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2024-11-16 07:44:13,374 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2024-11-16 07:44:13,374 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2024-11-16 07:44:13,375 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2024-11-16 07:44:13,375 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2024-11-16 07:44:13,375 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2024-11-16 07:44:13,375 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-16 07:44:13,375 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-16 07:44:13,376 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-16 07:44:13,376 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-16 07:44:13,376 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2024-11-16 07:44:13,376 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2024-11-16 07:44:13,376 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-16 07:44:13,377 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-16 07:44:13,578 INFO L256 CfgBuilder]: Building ICFG [2024-11-16 07:44:13,581 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-16 07:44:13,925 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L2457-1: getClientId_#res#1 := getClientId_~retValue_acc~27#1; [2024-11-16 07:44:13,925 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L2410-1: getClientForwardReceiver_#res#1 := getClientForwardReceiver_~retValue_acc~26#1; [2024-11-16 07:44:13,925 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L3039-1: isVerified_#res#1 := isVerified_~retValue_acc~43#1; [2024-11-16 07:44:13,925 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L1975-1: getClientAutoResponse_#res#1 := getClientAutoResponse_~retValue_acc~19#1; [2024-11-16 07:44:13,925 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L2702-1: getEmailId_#res#1 := getEmailId_~retValue_acc~34#1; [2024-11-16 07:44:13,939 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L2965: #res := ~retValue_acc~41; [2024-11-16 07:44:13,947 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L1306: #res := ~retValue_acc~10; [2024-11-16 07:44:13,969 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L2069-1: getClientKeyringSize_#res#1 := getClientKeyringSize_~retValue_acc~21#1; [2024-11-16 07:44:13,970 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L2114: #res#1 := ~retValue_acc~22#1; [2024-11-16 07:44:13,990 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L2338: #res := ~retValue_acc~25; [2024-11-16 07:44:13,998 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L2022: #res := ~retValue_acc~20; [2024-11-16 07:44:14,007 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L2614-1: createEmail_#res#1 := createEmail_~retValue_acc~31#1; [2024-11-16 07:44:14,017 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L2891: #res := ~retValue_acc~39; [2024-11-16 07:44:14,027 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L2928: #res := ~retValue_acc~40; [2024-11-16 07:44:14,034 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L3002: #res := ~retValue_acc~42; [2024-11-16 07:44:14,056 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L2776: #res := ~retValue_acc~36; [2024-11-16 07:44:14,276 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L2284-1: getClientKeyringPublicKey_#res#1 := getClientKeyringPublicKey_~retValue_acc~24#1; [2024-11-16 07:44:14,276 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L1263-1: is_queue_empty_#res#1 := is_queue_empty_~retValue_acc~7#1; [2024-11-16 07:44:14,276 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L1281-1: get_queued_email_#res#1 := get_queued_email_~retValue_acc~9#1; [2024-11-16 07:44:14,276 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L1001-1: valid_product_#res#1 := valid_product_~retValue_acc~5#1; [2024-11-16 07:44:14,276 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L2177-1: getClientKeyringUser_#res#1 := getClientKeyringUser_~retValue_acc~23#1; [2024-11-16 07:44:14,276 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L1272-1: get_queued_client_#res#1 := get_queued_client_~retValue_acc~8#1; [2024-11-16 07:44:14,282 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L2739: #res := ~retValue_acc~35; [2024-11-16 07:44:14,295 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L2590: #res#1 := ~retValue_acc~29#1; [2024-11-16 07:44:14,296 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L2570-1: isReadable__wrappee__Keys_#res#1 := isReadable__wrappee__Keys_~retValue_acc~28#1; [2024-11-16 07:44:14,451 INFO L? ?]: Removed 501 outVars from TransFormulas that were not future-live. [2024-11-16 07:44:14,454 INFO L307 CfgBuilder]: Performing block encoding [2024-11-16 07:44:14,479 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-16 07:44:14,480 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-16 07:44:14,480 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 07:44:14 BoogieIcfgContainer [2024-11-16 07:44:14,481 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-16 07:44:14,482 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-16 07:44:14,482 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-16 07:44:14,486 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-16 07:44:14,486 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 07:44:12" (1/3) ... [2024-11-16 07:44:14,487 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d1304fa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 07:44:14, skipping insertion in model container [2024-11-16 07:44:14,487 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:44:13" (2/3) ... [2024-11-16 07:44:14,487 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d1304fa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 07:44:14, skipping insertion in model container [2024-11-16 07:44:14,487 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 07:44:14" (3/3) ... [2024-11-16 07:44:14,489 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec4_product33.cil.c [2024-11-16 07:44:14,504 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-16 07:44:14,504 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-16 07:44:14,661 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-16 07:44:14,668 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;@3b87544, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-16 07:44:14,668 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-16 07:44:14,675 INFO L276 IsEmpty]: Start isEmpty. Operand has 401 states, 312 states have (on average 1.4807692307692308) internal successors, (462), 316 states have internal predecessors, (462), 63 states have call successors, (63), 24 states have call predecessors, (63), 24 states have return successors, (63), 63 states have call predecessors, (63), 63 states have call successors, (63) [2024-11-16 07:44:14,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-11-16 07:44:14,692 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 07:44:14,693 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 07:44:14,694 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 07:44:14,699 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 07:44:14,701 INFO L85 PathProgramCache]: Analyzing trace with hash -2090918279, now seen corresponding path program 1 times [2024-11-16 07:44:14,709 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 07:44:14,710 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1621621884] [2024-11-16 07:44:14,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 07:44:14,711 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 07:44:14,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:44:15,291 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 07:44:15,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:44:15,310 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 07:44:15,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:44:15,317 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 07:44:15,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:44:15,358 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-16 07:44:15,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:44:15,368 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-16 07:44:15,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:44:15,376 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-16 07:44:15,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:44:15,402 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-16 07:44:15,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:44:15,418 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-11-16 07:44:15,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:44:15,422 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-16 07:44:15,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:44:15,426 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-11-16 07:44:15,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:44:15,428 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-16 07:44:15,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:44:15,440 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-11-16 07:44:15,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:44:15,450 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-11-16 07:44:15,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:44:15,458 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-11-16 07:44:15,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:44:15,466 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2024-11-16 07:44:15,468 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 07:44:15,470 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1621621884] [2024-11-16 07:44:15,471 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1621621884] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 07:44:15,471 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [869379981] [2024-11-16 07:44:15,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 07:44:15,471 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 07:44:15,472 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 07:44:15,475 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) [2024-11-16 07:44:15,476 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-16 07:44:15,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:44:15,810 INFO L255 TraceCheckSpWp]: Trace formula consists of 1027 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-16 07:44:15,819 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 07:44:15,844 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2024-11-16 07:44:15,845 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-16 07:44:15,845 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [869379981] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 07:44:15,845 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-16 07:44:15,845 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [9] total 9 [2024-11-16 07:44:15,848 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1886505594] [2024-11-16 07:44:15,849 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 07:44:15,855 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-16 07:44:15,856 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 07:44:15,878 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-16 07:44:15,879 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-16 07:44:15,882 INFO L87 Difference]: Start difference. First operand has 401 states, 312 states have (on average 1.4807692307692308) internal successors, (462), 316 states have internal predecessors, (462), 63 states have call successors, (63), 24 states have call predecessors, (63), 24 states have return successors, (63), 63 states have call predecessors, (63), 63 states have call successors, (63) Second operand has 2 states, 2 states have (on average 30.0) internal successors, (60), 2 states have internal predecessors, (60), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-16 07:44:15,956 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 07:44:15,957 INFO L93 Difference]: Finished difference Result 631 states and 910 transitions. [2024-11-16 07:44:15,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-16 07:44:15,963 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 30.0) internal successors, (60), 2 states have internal predecessors, (60), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 108 [2024-11-16 07:44:15,963 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 07:44:15,980 INFO L225 Difference]: With dead ends: 631 [2024-11-16 07:44:15,981 INFO L226 Difference]: Without dead ends: 393 [2024-11-16 07:44:15,988 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 139 GetRequests, 132 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-16 07:44:15,990 INFO L432 NwaCegarLoop]: 583 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, 583 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 [2024-11-16 07:44:15,991 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 583 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 07:44:16,006 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 393 states. [2024-11-16 07:44:16,064 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 393 to 393. [2024-11-16 07:44:16,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 393 states, 305 states have (on average 1.4754098360655739) internal successors, (450), 308 states have internal predecessors, (450), 63 states have call successors, (63), 24 states have call predecessors, (63), 24 states have return successors, (62), 62 states have call predecessors, (62), 62 states have call successors, (62) [2024-11-16 07:44:16,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 393 states to 393 states and 575 transitions. [2024-11-16 07:44:16,079 INFO L78 Accepts]: Start accepts. Automaton has 393 states and 575 transitions. Word has length 108 [2024-11-16 07:44:16,081 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 07:44:16,081 INFO L471 AbstractCegarLoop]: Abstraction has 393 states and 575 transitions. [2024-11-16 07:44:16,082 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 30.0) internal successors, (60), 2 states have internal predecessors, (60), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-16 07:44:16,082 INFO L276 IsEmpty]: Start isEmpty. Operand 393 states and 575 transitions. [2024-11-16 07:44:16,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-11-16 07:44:16,092 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 07:44:16,093 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 07:44:16,113 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-16 07:44:16,293 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 [2024-11-16 07:44:16,294 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 07:44:16,295 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 07:44:16,295 INFO L85 PathProgramCache]: Analyzing trace with hash 1820417121, now seen corresponding path program 1 times [2024-11-16 07:44:16,295 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 07:44:16,295 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1888785556] [2024-11-16 07:44:16,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 07:44:16,295 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 07:44:16,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:44:16,494 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 07:44:16,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:44:16,507 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 07:44:16,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:44:16,510 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 07:44:16,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:44:16,532 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-16 07:44:16,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:44:16,536 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-16 07:44:16,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:44:16,543 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-16 07:44:16,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:44:16,558 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-16 07:44:16,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:44:16,574 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-11-16 07:44:16,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:44:16,578 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-11-16 07:44:16,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:44:16,580 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-16 07:44:16,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:44:16,584 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-16 07:44:16,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:44:16,589 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-16 07:44:16,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:44:16,593 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-16 07:44:16,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:44:16,598 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-11-16 07:44:16,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:44:16,603 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2024-11-16 07:44:16,603 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 07:44:16,603 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1888785556] [2024-11-16 07:44:16,604 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1888785556] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 07:44:16,604 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1657539055] [2024-11-16 07:44:16,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 07:44:16,604 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 07:44:16,605 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 07:44:16,606 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) [2024-11-16 07:44:16,609 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-16 07:44:16,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:44:16,973 INFO L255 TraceCheckSpWp]: Trace formula consists of 1030 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-16 07:44:16,978 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 07:44:17,027 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2024-11-16 07:44:17,031 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-16 07:44:17,031 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1657539055] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 07:44:17,031 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-16 07:44:17,032 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2024-11-16 07:44:17,032 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [652811935] [2024-11-16 07:44:17,032 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 07:44:17,033 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 07:44:17,033 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 07:44:17,033 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 07:44:17,034 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-11-16 07:44:17,034 INFO L87 Difference]: Start difference. First operand 393 states and 575 transitions. Second operand has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-16 07:44:17,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 07:44:17,095 INFO L93 Difference]: Finished difference Result 621 states and 891 transitions. [2024-11-16 07:44:17,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 07:44:17,097 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 111 [2024-11-16 07:44:17,097 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 07:44:17,102 INFO L225 Difference]: With dead ends: 621 [2024-11-16 07:44:17,102 INFO L226 Difference]: Without dead ends: 397 [2024-11-16 07:44:17,104 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 134 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-11-16 07:44:17,105 INFO L432 NwaCegarLoop]: 574 mSDtfsCounter, 0 mSDsluCounter, 572 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1146 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 07:44:17,105 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1146 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 07:44:17,107 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 397 states. [2024-11-16 07:44:17,126 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 397 to 397. [2024-11-16 07:44:17,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 397 states, 309 states have (on average 1.4692556634304208) internal successors, (454), 312 states have internal predecessors, (454), 63 states have call successors, (63), 24 states have call predecessors, (63), 24 states have return successors, (62), 62 states have call predecessors, (62), 62 states have call successors, (62) [2024-11-16 07:44:17,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 397 states to 397 states and 579 transitions. [2024-11-16 07:44:17,130 INFO L78 Accepts]: Start accepts. Automaton has 397 states and 579 transitions. Word has length 111 [2024-11-16 07:44:17,131 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 07:44:17,131 INFO L471 AbstractCegarLoop]: Abstraction has 397 states and 579 transitions. [2024-11-16 07:44:17,131 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-16 07:44:17,131 INFO L276 IsEmpty]: Start isEmpty. Operand 397 states and 579 transitions. [2024-11-16 07:44:17,134 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2024-11-16 07:44:17,134 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 07:44:17,135 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 07:44:17,156 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-16 07:44:17,338 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 [2024-11-16 07:44:17,339 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 07:44:17,340 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 07:44:17,341 INFO L85 PathProgramCache]: Analyzing trace with hash -1272601078, now seen corresponding path program 1 times [2024-11-16 07:44:17,341 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 07:44:17,341 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1664414074] [2024-11-16 07:44:17,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 07:44:17,341 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 07:44:17,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:44:17,537 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 07:44:17,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:44:17,555 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 07:44:17,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:44:17,559 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 07:44:17,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:44:17,580 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-16 07:44:17,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:44:17,584 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-16 07:44:17,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:44:17,586 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-16 07:44:17,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:44:17,599 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-16 07:44:17,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:44:17,611 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 07:44:17,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:44:17,613 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-16 07:44:17,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:44:17,615 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-16 07:44:17,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:44:17,617 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-16 07:44:17,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:44:17,619 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-11-16 07:44:17,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:44:17,621 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-11-16 07:44:17,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:44:17,623 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-11-16 07:44:17,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:44:17,626 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-16 07:44:17,626 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 07:44:17,626 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1664414074] [2024-11-16 07:44:17,626 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1664414074] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 07:44:17,626 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1074602017] [2024-11-16 07:44:17,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 07:44:17,627 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 07:44:17,627 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 07:44:17,629 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) [2024-11-16 07:44:17,630 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-16 07:44:17,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:44:17,961 INFO L255 TraceCheckSpWp]: Trace formula consists of 1058 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-16 07:44:17,966 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 07:44:17,993 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2024-11-16 07:44:17,993 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-16 07:44:17,994 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1074602017] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 07:44:17,994 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-16 07:44:17,994 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2024-11-16 07:44:17,994 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [140470955] [2024-11-16 07:44:17,995 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 07:44:17,996 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 07:44:17,996 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 07:44:17,997 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 07:44:17,997 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-11-16 07:44:17,997 INFO L87 Difference]: Start difference. First operand 397 states and 579 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, (16), 2 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-16 07:44:18,043 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 07:44:18,044 INFO L93 Difference]: Finished difference Result 838 states and 1234 transitions. [2024-11-16 07:44:18,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 07:44:18,045 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, (16), 2 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 122 [2024-11-16 07:44:18,046 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 07:44:18,050 INFO L225 Difference]: With dead ends: 838 [2024-11-16 07:44:18,051 INFO L226 Difference]: Without dead ends: 470 [2024-11-16 07:44:18,053 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 153 GetRequests, 145 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-11-16 07:44:18,054 INFO L432 NwaCegarLoop]: 586 mSDtfsCounter, 125 mSDsluCounter, 527 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 140 SdHoareTripleChecker+Valid, 1113 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 [2024-11-16 07:44:18,056 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [140 Valid, 1113 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 07:44:18,057 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 470 states. [2024-11-16 07:44:18,086 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 470 to 462. [2024-11-16 07:44:18,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 462 states, 363 states have (on average 1.4738292011019283) internal successors, (535), 366 states have internal predecessors, (535), 74 states have call successors, (74), 24 states have call predecessors, (74), 24 states have return successors, (73), 73 states have call predecessors, (73), 73 states have call successors, (73) [2024-11-16 07:44:18,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 462 states to 462 states and 682 transitions. [2024-11-16 07:44:18,094 INFO L78 Accepts]: Start accepts. Automaton has 462 states and 682 transitions. Word has length 122 [2024-11-16 07:44:18,094 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 07:44:18,094 INFO L471 AbstractCegarLoop]: Abstraction has 462 states and 682 transitions. [2024-11-16 07:44:18,096 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, (16), 2 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-16 07:44:18,097 INFO L276 IsEmpty]: Start isEmpty. Operand 462 states and 682 transitions. [2024-11-16 07:44:18,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2024-11-16 07:44:18,099 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 07:44:18,101 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 07:44:18,120 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-16 07:44:18,301 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 [2024-11-16 07:44:18,302 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 07:44:18,302 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 07:44:18,303 INFO L85 PathProgramCache]: Analyzing trace with hash -2014315110, now seen corresponding path program 1 times [2024-11-16 07:44:18,303 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 07:44:18,303 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [675510194] [2024-11-16 07:44:18,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 07:44:18,304 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 07:44:18,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:44:18,449 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 07:44:18,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:44:18,461 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 07:44:18,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:44:18,465 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 07:44:18,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:44:18,485 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-16 07:44:18,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:44:18,489 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-16 07:44:18,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:44:18,491 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-16 07:44:18,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:44:18,504 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-11-16 07:44:18,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:44:18,518 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-11-16 07:44:18,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:44:18,520 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-16 07:44:18,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:44:18,522 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-16 07:44:18,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:44:18,525 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-11-16 07:44:18,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:44:18,527 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-16 07:44:18,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:44:18,529 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-16 07:44:18,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:44:18,534 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-11-16 07:44:18,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:44:18,536 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-16 07:44:18,537 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 07:44:18,537 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [675510194] [2024-11-16 07:44:18,537 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [675510194] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 07:44:18,537 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1739548830] [2024-11-16 07:44:18,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 07:44:18,541 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 07:44:18,541 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 07:44:18,543 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) [2024-11-16 07:44:18,544 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-16 07:44:18,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:44:18,830 INFO L255 TraceCheckSpWp]: Trace formula consists of 1063 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-16 07:44:18,835 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 07:44:18,905 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2024-11-16 07:44:18,906 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-16 07:44:18,906 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1739548830] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 07:44:18,906 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-16 07:44:18,906 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 12 [2024-11-16 07:44:18,907 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1703862460] [2024-11-16 07:44:18,907 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 07:44:18,908 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 07:44:18,908 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 07:44:18,909 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 07:44:18,911 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2024-11-16 07:44:18,911 INFO L87 Difference]: Start difference. First operand 462 states and 682 transitions. Second operand has 5 states, 4 states have (on average 20.25) internal successors, (81), 5 states have internal predecessors, (81), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (14), 2 states have call predecessors, (14), 3 states have call successors, (14) [2024-11-16 07:44:19,007 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 07:44:19,007 INFO L93 Difference]: Finished difference Result 915 states and 1354 transitions. [2024-11-16 07:44:19,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-16 07:44:19,008 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 20.25) internal successors, (81), 5 states have internal predecessors, (81), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (14), 2 states have call predecessors, (14), 3 states have call successors, (14) Word has length 123 [2024-11-16 07:44:19,008 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 07:44:19,011 INFO L225 Difference]: With dead ends: 915 [2024-11-16 07:44:19,012 INFO L226 Difference]: Without dead ends: 464 [2024-11-16 07:44:19,014 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 154 GetRequests, 144 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2024-11-16 07:44:19,015 INFO L432 NwaCegarLoop]: 567 mSDtfsCounter, 2 mSDsluCounter, 1690 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 2257 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 [2024-11-16 07:44:19,015 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 2257 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 07:44:19,019 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 464 states. [2024-11-16 07:44:19,032 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 464 to 464. [2024-11-16 07:44:19,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 464 states, 364 states have (on average 1.4725274725274726) internal successors, (536), 368 states have internal predecessors, (536), 74 states have call successors, (74), 24 states have call predecessors, (74), 25 states have return successors, (75), 73 states have call predecessors, (75), 73 states have call successors, (75) [2024-11-16 07:44:19,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 464 states to 464 states and 685 transitions. [2024-11-16 07:44:19,036 INFO L78 Accepts]: Start accepts. Automaton has 464 states and 685 transitions. Word has length 123 [2024-11-16 07:44:19,037 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 07:44:19,037 INFO L471 AbstractCegarLoop]: Abstraction has 464 states and 685 transitions. [2024-11-16 07:44:19,037 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 20.25) internal successors, (81), 5 states have internal predecessors, (81), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (14), 2 states have call predecessors, (14), 3 states have call successors, (14) [2024-11-16 07:44:19,037 INFO L276 IsEmpty]: Start isEmpty. Operand 464 states and 685 transitions. [2024-11-16 07:44:19,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2024-11-16 07:44:19,039 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 07:44:19,039 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 07:44:19,060 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-16 07:44:19,240 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 07:44:19,240 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 07:44:19,241 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 07:44:19,241 INFO L85 PathProgramCache]: Analyzing trace with hash -137488173, now seen corresponding path program 1 times [2024-11-16 07:44:19,241 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 07:44:19,241 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1294315155] [2024-11-16 07:44:19,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 07:44:19,241 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 07:44:19,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:44:19,402 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 07:44:19,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:44:19,414 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 07:44:19,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:44:19,417 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 07:44:19,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:44:19,441 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-16 07:44:19,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:44:19,469 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-11-16 07:44:19,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:44:19,473 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-11-16 07:44:19,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:44:19,487 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-11-16 07:44:19,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:44:19,504 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-16 07:44:19,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:44:19,506 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-16 07:44:19,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:44:19,509 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-11-16 07:44:19,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:44:19,511 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-11-16 07:44:19,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:44:19,513 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-11-16 07:44:19,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:44:19,516 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-11-16 07:44:19,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:44:19,519 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-11-16 07:44:19,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:44:19,521 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-16 07:44:19,521 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 07:44:19,521 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1294315155] [2024-11-16 07:44:19,521 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1294315155] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 07:44:19,521 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1710957404] [2024-11-16 07:44:19,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 07:44:19,522 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 07:44:19,522 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 07:44:19,524 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) [2024-11-16 07:44:19,525 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-16 07:44:19,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:44:19,814 INFO L255 TraceCheckSpWp]: Trace formula consists of 1064 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-16 07:44:19,819 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 07:44:19,878 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2024-11-16 07:44:19,878 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-16 07:44:19,878 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1710957404] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 07:44:19,878 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-16 07:44:19,879 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [12] total 15 [2024-11-16 07:44:19,879 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1180222973] [2024-11-16 07:44:19,879 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 07:44:19,879 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 07:44:19,880 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 07:44:19,880 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 07:44:19,880 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=180, Unknown=0, NotChecked=0, Total=210 [2024-11-16 07:44:19,881 INFO L87 Difference]: Start difference. First operand 464 states and 685 transitions. Second operand has 5 states, 5 states have (on average 16.6) internal successors, (83), 5 states have internal predecessors, (83), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2024-11-16 07:44:19,947 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 07:44:19,948 INFO L93 Difference]: Finished difference Result 917 states and 1359 transitions. [2024-11-16 07:44:19,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-16 07:44:19,949 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.6) internal successors, (83), 5 states have internal predecessors, (83), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 124 [2024-11-16 07:44:19,949 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 07:44:19,952 INFO L225 Difference]: With dead ends: 917 [2024-11-16 07:44:19,952 INFO L226 Difference]: Without dead ends: 466 [2024-11-16 07:44:19,954 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 157 GetRequests, 144 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=180, Unknown=0, NotChecked=0, Total=210 [2024-11-16 07:44:19,955 INFO L432 NwaCegarLoop]: 565 mSDtfsCounter, 2 mSDsluCounter, 1678 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 2243 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 07:44:19,955 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 2243 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 07:44:19,957 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 466 states. [2024-11-16 07:44:19,979 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 466 to 466. [2024-11-16 07:44:19,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 466 states, 365 states have (on average 1.4712328767123288) internal successors, (537), 370 states have internal predecessors, (537), 74 states have call successors, (74), 24 states have call predecessors, (74), 26 states have return successors, (80), 73 states have call predecessors, (80), 73 states have call successors, (80) [2024-11-16 07:44:19,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 466 states to 466 states and 691 transitions. [2024-11-16 07:44:19,985 INFO L78 Accepts]: Start accepts. Automaton has 466 states and 691 transitions. Word has length 124 [2024-11-16 07:44:19,985 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 07:44:19,985 INFO L471 AbstractCegarLoop]: Abstraction has 466 states and 691 transitions. [2024-11-16 07:44:19,986 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.6) internal successors, (83), 5 states have internal predecessors, (83), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2024-11-16 07:44:19,986 INFO L276 IsEmpty]: Start isEmpty. Operand 466 states and 691 transitions. [2024-11-16 07:44:19,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2024-11-16 07:44:19,988 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 07:44:19,989 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 07:44:20,008 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-11-16 07:44:20,189 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 07:44:20,190 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 07:44:20,190 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 07:44:20,190 INFO L85 PathProgramCache]: Analyzing trace with hash -1588308341, now seen corresponding path program 1 times [2024-11-16 07:44:20,191 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 07:44:20,191 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2079116835] [2024-11-16 07:44:20,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 07:44:20,191 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 07:44:20,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:44:20,333 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 07:44:20,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:44:20,343 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 07:44:20,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:44:20,346 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 07:44:20,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:44:20,348 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-16 07:44:20,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:44:20,351 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-16 07:44:20,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:44:20,368 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-16 07:44:20,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:44:20,384 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-11-16 07:44:20,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:44:20,396 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-11-16 07:44:20,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:44:20,399 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-16 07:44:20,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:44:20,401 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-11-16 07:44:20,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:44:20,402 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-11-16 07:44:20,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:44:20,404 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-11-16 07:44:20,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:44:20,406 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-11-16 07:44:20,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:44:20,408 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-11-16 07:44:20,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:44:20,410 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-16 07:44:20,410 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 07:44:20,411 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2079116835] [2024-11-16 07:44:20,411 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2079116835] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 07:44:20,411 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 07:44:20,411 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-16 07:44:20,411 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1461219609] [2024-11-16 07:44:20,411 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 07:44:20,412 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-16 07:44:20,412 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 07:44:20,413 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-16 07:44:20,413 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-16 07:44:20,413 INFO L87 Difference]: Start difference. First operand 466 states and 691 transitions. Second operand has 9 states, 8 states have (on average 9.875) internal successors, (79), 5 states have internal predecessors, (79), 3 states have call successors, (16), 6 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 3 states have call successors, (14) [2024-11-16 07:44:23,088 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 07:44:23,088 INFO L93 Difference]: Finished difference Result 1124 states and 1681 transitions. [2024-11-16 07:44:23,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-16 07:44:23,089 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 9.875) internal successors, (79), 5 states have internal predecessors, (79), 3 states have call successors, (16), 6 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 3 states have call successors, (14) Word has length 125 [2024-11-16 07:44:23,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 07:44:23,095 INFO L225 Difference]: With dead ends: 1124 [2024-11-16 07:44:23,095 INFO L226 Difference]: Without dead ends: 681 [2024-11-16 07:44:23,097 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=72, Invalid=200, Unknown=0, NotChecked=0, Total=272 [2024-11-16 07:44:23,099 INFO L432 NwaCegarLoop]: 198 mSDtfsCounter, 1270 mSDsluCounter, 1062 mSDsCounter, 0 mSdLazyCounter, 3167 mSolverCounterSat, 421 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1271 SdHoareTripleChecker+Valid, 1260 SdHoareTripleChecker+Invalid, 3588 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 421 IncrementalHoareTripleChecker+Valid, 3167 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2024-11-16 07:44:23,100 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1271 Valid, 1260 Invalid, 3588 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [421 Valid, 3167 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2024-11-16 07:44:23,102 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 681 states. [2024-11-16 07:44:23,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 681 to 466. [2024-11-16 07:44:23,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 466 states, 365 states have (on average 1.4712328767123288) internal successors, (537), 370 states have internal predecessors, (537), 74 states have call successors, (74), 24 states have call predecessors, (74), 26 states have return successors, (79), 73 states have call predecessors, (79), 73 states have call successors, (79) [2024-11-16 07:44:23,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 466 states to 466 states and 690 transitions. [2024-11-16 07:44:23,150 INFO L78 Accepts]: Start accepts. Automaton has 466 states and 690 transitions. Word has length 125 [2024-11-16 07:44:23,152 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 07:44:23,152 INFO L471 AbstractCegarLoop]: Abstraction has 466 states and 690 transitions. [2024-11-16 07:44:23,152 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 9.875) internal successors, (79), 5 states have internal predecessors, (79), 3 states have call successors, (16), 6 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 3 states have call successors, (14) [2024-11-16 07:44:23,152 INFO L276 IsEmpty]: Start isEmpty. Operand 466 states and 690 transitions. [2024-11-16 07:44:23,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2024-11-16 07:44:23,155 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 07:44:23,156 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 07:44:23,156 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-16 07:44:23,156 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 07:44:23,156 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 07:44:23,157 INFO L85 PathProgramCache]: Analyzing trace with hash 1061784486, now seen corresponding path program 2 times [2024-11-16 07:44:23,157 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 07:44:23,157 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1742364885] [2024-11-16 07:44:23,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 07:44:23,157 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 07:44:23,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:44:23,276 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 07:44:23,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:44:23,287 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 07:44:23,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:44:23,289 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 07:44:23,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:44:23,291 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-16 07:44:23,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:44:23,293 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-16 07:44:23,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:44:23,312 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-16 07:44:23,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:44:23,324 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-16 07:44:23,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:44:23,337 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-11-16 07:44:23,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:44:23,339 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-11-16 07:44:23,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:44:23,341 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-16 07:44:23,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:44:23,342 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-16 07:44:23,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:44:23,344 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-11-16 07:44:23,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:44:23,346 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-11-16 07:44:23,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:44:23,347 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-11-16 07:44:23,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:44:23,349 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-16 07:44:23,350 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 07:44:23,350 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1742364885] [2024-11-16 07:44:23,350 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1742364885] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 07:44:23,350 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 07:44:23,350 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-16 07:44:23,350 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [739939953] [2024-11-16 07:44:23,350 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 07:44:23,351 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-16 07:44:23,351 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 07:44:23,352 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-16 07:44:23,352 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-16 07:44:23,352 INFO L87 Difference]: Start difference. First operand 466 states and 690 transitions. Second operand has 9 states, 8 states have (on average 10.0) internal successors, (80), 5 states have internal predecessors, (80), 3 states have call successors, (16), 6 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 3 states have call successors, (14) [2024-11-16 07:44:25,686 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 07:44:25,686 INFO L93 Difference]: Finished difference Result 1126 states and 1684 transitions. [2024-11-16 07:44:25,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-16 07:44:25,686 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 10.0) internal successors, (80), 5 states have internal predecessors, (80), 3 states have call successors, (16), 6 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 3 states have call successors, (14) Word has length 126 [2024-11-16 07:44:25,687 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 07:44:25,691 INFO L225 Difference]: With dead ends: 1126 [2024-11-16 07:44:25,691 INFO L226 Difference]: Without dead ends: 683 [2024-11-16 07:44:25,693 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=72, Invalid=200, Unknown=0, NotChecked=0, Total=272 [2024-11-16 07:44:25,694 INFO L432 NwaCegarLoop]: 198 mSDtfsCounter, 1266 mSDsluCounter, 1062 mSDsCounter, 0 mSdLazyCounter, 3174 mSolverCounterSat, 421 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1267 SdHoareTripleChecker+Valid, 1260 SdHoareTripleChecker+Invalid, 3595 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 421 IncrementalHoareTripleChecker+Valid, 3174 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2024-11-16 07:44:25,694 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1267 Valid, 1260 Invalid, 3595 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [421 Valid, 3174 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2024-11-16 07:44:25,696 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 683 states. [2024-11-16 07:44:25,728 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 683 to 468. [2024-11-16 07:44:25,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 468 states, 366 states have (on average 1.469945355191257) internal successors, (538), 372 states have internal predecessors, (538), 74 states have call successors, (74), 24 states have call predecessors, (74), 27 states have return successors, (81), 73 states have call predecessors, (81), 73 states have call successors, (81) [2024-11-16 07:44:25,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 468 states to 468 states and 693 transitions. [2024-11-16 07:44:25,732 INFO L78 Accepts]: Start accepts. Automaton has 468 states and 693 transitions. Word has length 126 [2024-11-16 07:44:25,732 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 07:44:25,732 INFO L471 AbstractCegarLoop]: Abstraction has 468 states and 693 transitions. [2024-11-16 07:44:25,732 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 10.0) internal successors, (80), 5 states have internal predecessors, (80), 3 states have call successors, (16), 6 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 3 states have call successors, (14) [2024-11-16 07:44:25,732 INFO L276 IsEmpty]: Start isEmpty. Operand 468 states and 693 transitions. [2024-11-16 07:44:25,734 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2024-11-16 07:44:25,734 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 07:44:25,735 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 07:44:25,735 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-16 07:44:25,735 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 07:44:25,735 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 07:44:25,735 INFO L85 PathProgramCache]: Analyzing trace with hash 668492782, now seen corresponding path program 1 times [2024-11-16 07:44:25,736 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 07:44:25,736 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [43158457] [2024-11-16 07:44:25,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 07:44:25,736 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 07:44:25,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:44:25,861 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 07:44:25,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:44:25,875 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 07:44:25,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:44:25,878 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 07:44:25,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:44:25,880 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-16 07:44:25,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:44:25,884 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-16 07:44:25,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:44:25,907 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-16 07:44:25,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:44:25,945 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 07:44:25,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:44:25,960 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-16 07:44:25,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:44:25,962 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-11-16 07:44:25,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:44:25,964 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-16 07:44:25,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:44:25,966 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-11-16 07:44:25,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:44:25,968 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-16 07:44:25,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:44:25,969 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-11-16 07:44:25,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:44:25,971 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2024-11-16 07:44:25,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:44:25,973 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-16 07:44:25,973 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 07:44:25,973 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [43158457] [2024-11-16 07:44:25,973 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [43158457] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 07:44:25,973 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 07:44:25,973 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-16 07:44:25,974 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [205428357] [2024-11-16 07:44:25,974 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 07:44:25,974 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-16 07:44:25,974 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 07:44:25,975 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-16 07:44:25,975 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2024-11-16 07:44:25,975 INFO L87 Difference]: Start difference. First operand 468 states and 693 transitions. Second operand has 12 states, 11 states have (on average 7.636363636363637) internal successors, (84), 8 states have internal predecessors, (84), 4 states have call successors, (16), 6 states have call predecessors, (16), 3 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) [2024-11-16 07:44:29,041 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 07:44:29,041 INFO L93 Difference]: Finished difference Result 1124 states and 1679 transitions. [2024-11-16 07:44:29,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-16 07:44:29,041 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 7.636363636363637) internal successors, (84), 8 states have internal predecessors, (84), 4 states have call successors, (16), 6 states have call predecessors, (16), 3 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) Word has length 127 [2024-11-16 07:44:29,042 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 07:44:29,046 INFO L225 Difference]: With dead ends: 1124 [2024-11-16 07:44:29,046 INFO L226 Difference]: Without dead ends: 683 [2024-11-16 07:44:29,048 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=102, Invalid=404, Unknown=0, NotChecked=0, Total=506 [2024-11-16 07:44:29,048 INFO L432 NwaCegarLoop]: 196 mSDtfsCounter, 1270 mSDsluCounter, 1548 mSDsCounter, 0 mSdLazyCounter, 5255 mSolverCounterSat, 428 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1271 SdHoareTripleChecker+Valid, 1744 SdHoareTripleChecker+Invalid, 5683 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 428 IncrementalHoareTripleChecker+Valid, 5255 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2024-11-16 07:44:29,049 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1271 Valid, 1744 Invalid, 5683 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [428 Valid, 5255 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2024-11-16 07:44:29,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 683 states. [2024-11-16 07:44:29,079 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 683 to 468. [2024-11-16 07:44:29,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 468 states, 366 states have (on average 1.469945355191257) internal successors, (538), 372 states have internal predecessors, (538), 74 states have call successors, (74), 24 states have call predecessors, (74), 27 states have return successors, (80), 73 states have call predecessors, (80), 73 states have call successors, (80) [2024-11-16 07:44:29,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 468 states to 468 states and 692 transitions. [2024-11-16 07:44:29,083 INFO L78 Accepts]: Start accepts. Automaton has 468 states and 692 transitions. Word has length 127 [2024-11-16 07:44:29,083 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 07:44:29,083 INFO L471 AbstractCegarLoop]: Abstraction has 468 states and 692 transitions. [2024-11-16 07:44:29,083 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 7.636363636363637) internal successors, (84), 8 states have internal predecessors, (84), 4 states have call successors, (16), 6 states have call predecessors, (16), 3 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) [2024-11-16 07:44:29,083 INFO L276 IsEmpty]: Start isEmpty. Operand 468 states and 692 transitions. [2024-11-16 07:44:29,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2024-11-16 07:44:29,085 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 07:44:29,086 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 07:44:29,086 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-16 07:44:29,086 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 07:44:29,086 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 07:44:29,086 INFO L85 PathProgramCache]: Analyzing trace with hash 216992312, now seen corresponding path program 2 times [2024-11-16 07:44:29,087 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 07:44:29,087 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [586233418] [2024-11-16 07:44:29,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 07:44:29,087 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 07:44:29,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:44:29,234 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 07:44:29,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:44:29,245 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 07:44:29,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:44:29,249 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 07:44:29,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:44:29,252 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-16 07:44:29,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:44:29,255 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-16 07:44:29,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:44:29,276 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-16 07:44:29,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:44:29,319 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-11-16 07:44:29,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:44:29,334 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-16 07:44:29,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:44:29,337 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-11-16 07:44:29,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:44:29,338 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-16 07:44:29,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:44:29,340 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-16 07:44:29,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:44:29,341 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-11-16 07:44:29,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:44:29,343 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-11-16 07:44:29,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:44:29,344 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-11-16 07:44:29,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:44:29,346 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-16 07:44:29,346 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 07:44:29,347 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [586233418] [2024-11-16 07:44:29,347 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [586233418] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 07:44:29,347 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 07:44:29,347 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-16 07:44:29,347 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2072607619] [2024-11-16 07:44:29,347 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 07:44:29,347 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-16 07:44:29,347 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 07:44:29,348 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-16 07:44:29,348 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2024-11-16 07:44:29,349 INFO L87 Difference]: Start difference. First operand 468 states and 692 transitions. Second operand has 12 states, 11 states have (on average 7.7272727272727275) internal successors, (85), 8 states have internal predecessors, (85), 4 states have call successors, (16), 6 states have call predecessors, (16), 3 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) [2024-11-16 07:44:32,312 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 07:44:32,312 INFO L93 Difference]: Finished difference Result 1126 states and 1685 transitions. [2024-11-16 07:44:32,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-16 07:44:32,313 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 7.7272727272727275) internal successors, (85), 8 states have internal predecessors, (85), 4 states have call successors, (16), 6 states have call predecessors, (16), 3 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) Word has length 128 [2024-11-16 07:44:32,313 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 07:44:32,317 INFO L225 Difference]: With dead ends: 1126 [2024-11-16 07:44:32,317 INFO L226 Difference]: Without dead ends: 685 [2024-11-16 07:44:32,318 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=102, Invalid=404, Unknown=0, NotChecked=0, Total=506 [2024-11-16 07:44:32,319 INFO L432 NwaCegarLoop]: 197 mSDtfsCounter, 1266 mSDsluCounter, 1548 mSDsCounter, 0 mSdLazyCounter, 5300 mSolverCounterSat, 424 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1267 SdHoareTripleChecker+Valid, 1745 SdHoareTripleChecker+Invalid, 5724 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 424 IncrementalHoareTripleChecker+Valid, 5300 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2024-11-16 07:44:32,319 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1267 Valid, 1745 Invalid, 5724 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [424 Valid, 5300 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2024-11-16 07:44:32,320 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 685 states. [2024-11-16 07:44:32,349 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 685 to 470. [2024-11-16 07:44:32,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 470 states, 367 states have (on average 1.4686648501362398) internal successors, (539), 374 states have internal predecessors, (539), 74 states have call successors, (74), 24 states have call predecessors, (74), 28 states have return successors, (85), 73 states have call predecessors, (85), 73 states have call successors, (85) [2024-11-16 07:44:32,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 470 states to 470 states and 698 transitions. [2024-11-16 07:44:32,353 INFO L78 Accepts]: Start accepts. Automaton has 470 states and 698 transitions. Word has length 128 [2024-11-16 07:44:32,353 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 07:44:32,353 INFO L471 AbstractCegarLoop]: Abstraction has 470 states and 698 transitions. [2024-11-16 07:44:32,353 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 7.7272727272727275) internal successors, (85), 8 states have internal predecessors, (85), 4 states have call successors, (16), 6 states have call predecessors, (16), 3 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) [2024-11-16 07:44:32,354 INFO L276 IsEmpty]: Start isEmpty. Operand 470 states and 698 transitions. [2024-11-16 07:44:32,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2024-11-16 07:44:32,355 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 07:44:32,356 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 07:44:32,356 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-16 07:44:32,356 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 07:44:32,356 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 07:44:32,356 INFO L85 PathProgramCache]: Analyzing trace with hash -145287823, now seen corresponding path program 1 times [2024-11-16 07:44:32,356 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 07:44:32,357 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1549433326] [2024-11-16 07:44:32,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 07:44:32,357 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 07:44:32,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:44:32,488 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 07:44:32,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:44:32,499 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 07:44:32,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:44:32,502 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 07:44:32,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:44:32,525 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-16 07:44:32,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:44:32,534 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-16 07:44:32,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:44:32,538 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-16 07:44:32,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:44:32,557 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-16 07:44:32,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:44:32,572 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-11-16 07:44:32,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:44:32,574 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-16 07:44:32,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:44:32,576 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-11-16 07:44:32,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:44:32,577 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-11-16 07:44:32,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:44:32,579 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-16 07:44:32,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:44:32,581 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-11-16 07:44:32,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:44:32,582 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-11-16 07:44:32,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:44:32,585 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 7 proven. 4 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2024-11-16 07:44:32,585 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 07:44:32,585 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1549433326] [2024-11-16 07:44:32,585 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1549433326] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 07:44:32,585 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [623026163] [2024-11-16 07:44:32,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 07:44:32,586 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 07:44:32,586 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 07:44:32,588 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) [2024-11-16 07:44:32,589 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-16 07:44:32,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:44:32,857 INFO L255 TraceCheckSpWp]: Trace formula consists of 1069 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-16 07:44:32,860 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 07:44:32,905 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2024-11-16 07:44:32,906 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-16 07:44:33,016 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2024-11-16 07:44:33,017 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [623026163] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-16 07:44:33,017 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-16 07:44:33,017 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 4, 4] total 15 [2024-11-16 07:44:33,017 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1847225245] [2024-11-16 07:44:33,017 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-16 07:44:33,018 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-16 07:44:33,018 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 07:44:33,018 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-16 07:44:33,019 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=177, Unknown=0, NotChecked=0, Total=210 [2024-11-16 07:44:33,019 INFO L87 Difference]: Start difference. First operand 470 states and 698 transitions. Second operand has 15 states, 14 states have (on average 10.642857142857142) internal successors, (149), 11 states have internal predecessors, (149), 4 states have call successors, (33), 6 states have call predecessors, (33), 3 states have return successors, (26), 3 states have call predecessors, (26), 4 states have call successors, (26) [2024-11-16 07:44:36,193 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 07:44:36,193 INFO L93 Difference]: Finished difference Result 1556 states and 2412 transitions. [2024-11-16 07:44:36,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-16 07:44:36,194 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 10.642857142857142) internal successors, (149), 11 states have internal predecessors, (149), 4 states have call successors, (33), 6 states have call predecessors, (33), 3 states have return successors, (26), 3 states have call predecessors, (26), 4 states have call successors, (26) Word has length 129 [2024-11-16 07:44:36,194 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 07:44:36,201 INFO L225 Difference]: With dead ends: 1556 [2024-11-16 07:44:36,201 INFO L226 Difference]: Without dead ends: 1119 [2024-11-16 07:44:36,204 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 311 GetRequests, 281 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 149 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=164, Invalid=828, Unknown=0, NotChecked=0, Total=992 [2024-11-16 07:44:36,205 INFO L432 NwaCegarLoop]: 201 mSDtfsCounter, 2506 mSDsluCounter, 1916 mSDsCounter, 0 mSdLazyCounter, 5765 mSolverCounterSat, 764 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2523 SdHoareTripleChecker+Valid, 2117 SdHoareTripleChecker+Invalid, 6529 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 764 IncrementalHoareTripleChecker+Valid, 5765 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2024-11-16 07:44:36,206 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2523 Valid, 2117 Invalid, 6529 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [764 Valid, 5765 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2024-11-16 07:44:36,208 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1119 states. [2024-11-16 07:44:36,252 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1119 to 880. [2024-11-16 07:44:36,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 880 states, 713 states have (on average 1.4964936886395512) internal successors, (1067), 720 states have internal predecessors, (1067), 138 states have call successors, (138), 24 states have call predecessors, (138), 28 states have return successors, (159), 137 states have call predecessors, (159), 137 states have call successors, (159) [2024-11-16 07:44:36,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 880 states to 880 states and 1364 transitions. [2024-11-16 07:44:36,257 INFO L78 Accepts]: Start accepts. Automaton has 880 states and 1364 transitions. Word has length 129 [2024-11-16 07:44:36,257 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 07:44:36,258 INFO L471 AbstractCegarLoop]: Abstraction has 880 states and 1364 transitions. [2024-11-16 07:44:36,258 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 10.642857142857142) internal successors, (149), 11 states have internal predecessors, (149), 4 states have call successors, (33), 6 states have call predecessors, (33), 3 states have return successors, (26), 3 states have call predecessors, (26), 4 states have call successors, (26) [2024-11-16 07:44:36,258 INFO L276 IsEmpty]: Start isEmpty. Operand 880 states and 1364 transitions. [2024-11-16 07:44:36,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2024-11-16 07:44:36,262 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 07:44:36,262 INFO L215 NwaCegarLoop]: trace histogram [3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 07:44:36,283 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-11-16 07:44:36,462 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 07:44:36,463 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 07:44:36,463 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 07:44:36,463 INFO L85 PathProgramCache]: Analyzing trace with hash 407847918, now seen corresponding path program 1 times [2024-11-16 07:44:36,464 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 07:44:36,464 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2075398770] [2024-11-16 07:44:36,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 07:44:36,464 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 07:44:36,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:44:36,528 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 07:44:36,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:44:36,538 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 07:44:36,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:44:36,541 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 07:44:36,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:44:36,543 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-16 07:44:36,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:44:36,545 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-16 07:44:36,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:44:36,547 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-16 07:44:36,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:44:36,555 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-16 07:44:36,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:44:36,565 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-16 07:44:36,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:44:36,568 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-11-16 07:44:36,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:44:36,569 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-11-16 07:44:36,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:44:36,571 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-11-16 07:44:36,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:44:36,572 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-11-16 07:44:36,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:44:36,574 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-11-16 07:44:36,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:44:36,575 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2024-11-16 07:44:36,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:44:36,577 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2024-11-16 07:44:36,577 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 07:44:36,577 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2075398770] [2024-11-16 07:44:36,577 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2075398770] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 07:44:36,577 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 07:44:36,578 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 07:44:36,578 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2078842314] [2024-11-16 07:44:36,578 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 07:44:36,578 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 07:44:36,578 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 07:44:36,579 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 07:44:36,579 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-16 07:44:36,579 INFO L87 Difference]: Start difference. First operand 880 states and 1364 transitions. Second operand has 7 states, 7 states have (on average 13.285714285714286) internal successors, (93), 3 states have internal predecessors, (93), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-16 07:44:38,212 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 07:44:38,212 INFO L93 Difference]: Finished difference Result 2285 states and 3605 transitions. [2024-11-16 07:44:38,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-16 07:44:38,212 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.285714285714286) internal successors, (93), 3 states have internal predecessors, (93), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 139 [2024-11-16 07:44:38,213 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 07:44:38,220 INFO L225 Difference]: With dead ends: 2285 [2024-11-16 07:44:38,220 INFO L226 Difference]: Without dead ends: 1487 [2024-11-16 07:44:38,223 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-11-16 07:44:38,224 INFO L432 NwaCegarLoop]: 215 mSDtfsCounter, 1386 mSDsluCounter, 752 mSDsCounter, 0 mSdLazyCounter, 1820 mSolverCounterSat, 474 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1401 SdHoareTripleChecker+Valid, 967 SdHoareTripleChecker+Invalid, 2294 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 474 IncrementalHoareTripleChecker+Valid, 1820 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-16 07:44:38,224 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1401 Valid, 967 Invalid, 2294 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [474 Valid, 1820 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-16 07:44:38,227 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1487 states. [2024-11-16 07:44:38,306 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1487 to 1264. [2024-11-16 07:44:38,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1264 states, 1033 states have (on average 1.5014520813165537) internal successors, (1551), 1040 states have internal predecessors, (1551), 202 states have call successors, (202), 24 states have call predecessors, (202), 28 states have return successors, (233), 201 states have call predecessors, (233), 201 states have call successors, (233) [2024-11-16 07:44:38,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1264 states to 1264 states and 1986 transitions. [2024-11-16 07:44:38,314 INFO L78 Accepts]: Start accepts. Automaton has 1264 states and 1986 transitions. Word has length 139 [2024-11-16 07:44:38,314 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 07:44:38,314 INFO L471 AbstractCegarLoop]: Abstraction has 1264 states and 1986 transitions. [2024-11-16 07:44:38,314 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.285714285714286) internal successors, (93), 3 states have internal predecessors, (93), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-16 07:44:38,314 INFO L276 IsEmpty]: Start isEmpty. Operand 1264 states and 1986 transitions. [2024-11-16 07:44:38,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2024-11-16 07:44:38,320 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 07:44:38,320 INFO L215 NwaCegarLoop]: trace histogram [3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 07:44:38,321 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-16 07:44:38,321 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 07:44:38,321 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 07:44:38,321 INFO L85 PathProgramCache]: Analyzing trace with hash 1926494448, now seen corresponding path program 1 times [2024-11-16 07:44:38,321 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 07:44:38,322 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1407594543] [2024-11-16 07:44:38,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 07:44:38,322 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 07:44:38,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:44:38,387 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 07:44:38,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:44:38,397 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 07:44:38,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:44:38,401 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 07:44:38,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:44:38,404 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-16 07:44:38,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:44:38,407 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-16 07:44:38,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:44:38,409 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-16 07:44:38,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:44:38,420 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-11-16 07:44:38,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:44:38,431 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-16 07:44:38,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:44:38,433 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-16 07:44:38,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:44:38,439 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-16 07:44:38,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:44:38,441 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-16 07:44:38,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:44:38,442 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2024-11-16 07:44:38,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:44:38,444 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2024-11-16 07:44:38,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:44:38,445 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2024-11-16 07:44:38,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:44:38,447 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2024-11-16 07:44:38,447 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 07:44:38,448 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1407594543] [2024-11-16 07:44:38,448 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1407594543] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 07:44:38,448 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 07:44:38,448 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 07:44:38,448 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [62864508] [2024-11-16 07:44:38,448 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 07:44:38,449 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 07:44:38,449 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 07:44:38,449 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 07:44:38,449 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-16 07:44:38,450 INFO L87 Difference]: Start difference. First operand 1264 states and 1986 transitions. Second operand has 7 states, 7 states have (on average 13.428571428571429) internal successors, (94), 3 states have internal predecessors, (94), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-16 07:44:40,267 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 07:44:40,268 INFO L93 Difference]: Finished difference Result 3237 states and 5136 transitions. [2024-11-16 07:44:40,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-16 07:44:40,268 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.428571428571429) internal successors, (94), 3 states have internal predecessors, (94), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 140 [2024-11-16 07:44:40,268 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 07:44:40,282 INFO L225 Difference]: With dead ends: 3237 [2024-11-16 07:44:40,282 INFO L226 Difference]: Without dead ends: 2116 [2024-11-16 07:44:40,285 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-11-16 07:44:40,286 INFO L432 NwaCegarLoop]: 197 mSDtfsCounter, 1383 mSDsluCounter, 723 mSDsCounter, 0 mSdLazyCounter, 1788 mSolverCounterSat, 482 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1398 SdHoareTripleChecker+Valid, 920 SdHoareTripleChecker+Invalid, 2270 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 482 IncrementalHoareTripleChecker+Valid, 1788 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-16 07:44:40,286 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1398 Valid, 920 Invalid, 2270 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [482 Valid, 1788 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-16 07:44:40,288 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2116 states. [2024-11-16 07:44:40,373 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2116 to 1893. [2024-11-16 07:44:40,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1893 states, 1567 states have (on average 1.5015954052329292) internal successors, (2353), 1574 states have internal predecessors, (2353), 297 states have call successors, (297), 24 states have call predecessors, (297), 28 states have return successors, (328), 296 states have call predecessors, (328), 296 states have call successors, (328) [2024-11-16 07:44:40,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1893 states to 1893 states and 2978 transitions. [2024-11-16 07:44:40,383 INFO L78 Accepts]: Start accepts. Automaton has 1893 states and 2978 transitions. Word has length 140 [2024-11-16 07:44:40,383 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 07:44:40,383 INFO L471 AbstractCegarLoop]: Abstraction has 1893 states and 2978 transitions. [2024-11-16 07:44:40,384 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.428571428571429) internal successors, (94), 3 states have internal predecessors, (94), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-16 07:44:40,384 INFO L276 IsEmpty]: Start isEmpty. Operand 1893 states and 2978 transitions. [2024-11-16 07:44:40,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2024-11-16 07:44:40,392 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 07:44:40,392 INFO L215 NwaCegarLoop]: trace histogram [3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 07:44:40,392 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-16 07:44:40,392 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 07:44:40,392 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 07:44:40,393 INFO L85 PathProgramCache]: Analyzing trace with hash -1630106322, now seen corresponding path program 1 times [2024-11-16 07:44:40,393 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 07:44:40,393 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1998968096] [2024-11-16 07:44:40,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 07:44:40,393 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 07:44:40,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:44:40,455 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 07:44:40,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:44:40,467 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 07:44:40,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:44:40,470 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 07:44:40,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:44:40,473 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-16 07:44:40,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:44:40,475 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-16 07:44:40,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:44:40,502 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-16 07:44:40,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:44:40,517 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-11-16 07:44:40,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:44:40,528 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-11-16 07:44:40,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:44:40,531 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-11-16 07:44:40,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:44:40,533 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-11-16 07:44:40,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:44:40,534 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-11-16 07:44:40,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:44:40,537 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-11-16 07:44:40,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:44:40,538 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2024-11-16 07:44:40,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:44:40,540 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-11-16 07:44:40,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:44:40,541 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2024-11-16 07:44:40,542 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 07:44:40,542 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1998968096] [2024-11-16 07:44:40,542 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1998968096] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 07:44:40,542 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 07:44:40,543 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 07:44:40,543 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [571583102] [2024-11-16 07:44:40,543 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 07:44:40,543 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 07:44:40,543 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 07:44:40,544 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 07:44:40,544 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-16 07:44:40,544 INFO L87 Difference]: Start difference. First operand 1893 states and 2978 transitions. Second operand has 7 states, 7 states have (on average 13.571428571428571) internal successors, (95), 3 states have internal predecessors, (95), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-16 07:44:42,150 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 07:44:42,150 INFO L93 Difference]: Finished difference Result 4679 states and 7457 transitions. [2024-11-16 07:44:42,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-16 07:44:42,151 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.571428571428571) internal successors, (95), 3 states have internal predecessors, (95), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 141 [2024-11-16 07:44:42,151 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 07:44:42,165 INFO L225 Difference]: With dead ends: 4679 [2024-11-16 07:44:42,165 INFO L226 Difference]: Without dead ends: 3082 [2024-11-16 07:44:42,170 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-11-16 07:44:42,170 INFO L432 NwaCegarLoop]: 197 mSDtfsCounter, 1380 mSDsluCounter, 722 mSDsCounter, 0 mSdLazyCounter, 1789 mSolverCounterSat, 474 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1395 SdHoareTripleChecker+Valid, 919 SdHoareTripleChecker+Invalid, 2263 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 474 IncrementalHoareTripleChecker+Valid, 1789 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-16 07:44:42,171 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1395 Valid, 919 Invalid, 2263 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [474 Valid, 1789 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-16 07:44:42,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3082 states. [2024-11-16 07:44:42,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3082 to 2859. [2024-11-16 07:44:42,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2859 states, 2410 states have (on average 1.5008298755186722) internal successors, (3617), 2417 states have internal predecessors, (3617), 420 states have call successors, (420), 24 states have call predecessors, (420), 28 states have return successors, (467), 419 states have call predecessors, (467), 419 states have call successors, (467) [2024-11-16 07:44:42,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2859 states to 2859 states and 4504 transitions. [2024-11-16 07:44:42,295 INFO L78 Accepts]: Start accepts. Automaton has 2859 states and 4504 transitions. Word has length 141 [2024-11-16 07:44:42,295 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 07:44:42,296 INFO L471 AbstractCegarLoop]: Abstraction has 2859 states and 4504 transitions. [2024-11-16 07:44:42,296 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.571428571428571) internal successors, (95), 3 states have internal predecessors, (95), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-16 07:44:42,296 INFO L276 IsEmpty]: Start isEmpty. Operand 2859 states and 4504 transitions. [2024-11-16 07:44:42,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2024-11-16 07:44:42,306 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 07:44:42,306 INFO L215 NwaCegarLoop]: trace histogram [3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 07:44:42,307 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-16 07:44:42,307 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 07:44:42,307 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 07:44:42,307 INFO L85 PathProgramCache]: Analyzing trace with hash 1140853264, now seen corresponding path program 1 times [2024-11-16 07:44:42,307 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 07:44:42,308 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [617316011] [2024-11-16 07:44:42,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 07:44:42,308 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 07:44:42,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:44:42,370 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 07:44:42,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:44:42,379 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 07:44:42,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:44:42,381 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 07:44:42,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:44:42,383 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-16 07:44:42,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:44:42,386 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-16 07:44:42,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:44:42,389 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-16 07:44:42,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:44:42,398 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-11-16 07:44:42,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:44:42,407 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-11-16 07:44:42,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:44:42,409 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-16 07:44:42,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:44:42,410 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-11-16 07:44:42,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:44:42,412 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-11-16 07:44:42,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:44:42,413 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-11-16 07:44:42,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:44:42,414 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2024-11-16 07:44:42,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:44:42,415 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-11-16 07:44:42,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:44:42,417 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2024-11-16 07:44:42,419 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 07:44:42,419 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [617316011] [2024-11-16 07:44:42,420 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [617316011] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 07:44:42,420 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 07:44:42,420 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 07:44:42,420 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [689479909] [2024-11-16 07:44:42,420 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 07:44:42,420 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 07:44:42,420 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 07:44:42,421 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 07:44:42,421 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-16 07:44:42,421 INFO L87 Difference]: Start difference. First operand 2859 states and 4504 transitions. Second operand has 7 states, 7 states have (on average 13.714285714285714) internal successors, (96), 3 states have internal predecessors, (96), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-16 07:44:44,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 07:44:44,097 INFO L93 Difference]: Finished difference Result 6951 states and 11105 transitions. [2024-11-16 07:44:44,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-16 07:44:44,098 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.714285714285714) internal successors, (96), 3 states have internal predecessors, (96), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 142 [2024-11-16 07:44:44,098 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 07:44:44,122 INFO L225 Difference]: With dead ends: 6951 [2024-11-16 07:44:44,123 INFO L226 Difference]: Without dead ends: 4640 [2024-11-16 07:44:44,130 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-11-16 07:44:44,131 INFO L432 NwaCegarLoop]: 200 mSDtfsCounter, 1377 mSDsluCounter, 722 mSDsCounter, 0 mSdLazyCounter, 1808 mSolverCounterSat, 473 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1392 SdHoareTripleChecker+Valid, 922 SdHoareTripleChecker+Invalid, 2281 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 473 IncrementalHoareTripleChecker+Valid, 1808 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-16 07:44:44,131 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1392 Valid, 922 Invalid, 2281 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [473 Valid, 1808 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-16 07:44:44,136 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4640 states. [2024-11-16 07:44:44,297 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4640 to 4417. [2024-11-16 07:44:44,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4417 states, 3789 states have (on average 1.498812351543943) internal successors, (5679), 3796 states have internal predecessors, (5679), 599 states have call successors, (599), 24 states have call predecessors, (599), 28 states have return successors, (672), 598 states have call predecessors, (672), 598 states have call successors, (672) [2024-11-16 07:44:44,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4417 states to 4417 states and 6950 transitions. [2024-11-16 07:44:44,324 INFO L78 Accepts]: Start accepts. Automaton has 4417 states and 6950 transitions. Word has length 142 [2024-11-16 07:44:44,324 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 07:44:44,324 INFO L471 AbstractCegarLoop]: Abstraction has 4417 states and 6950 transitions. [2024-11-16 07:44:44,324 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.714285714285714) internal successors, (96), 3 states have internal predecessors, (96), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-16 07:44:44,324 INFO L276 IsEmpty]: Start isEmpty. Operand 4417 states and 6950 transitions. [2024-11-16 07:44:44,338 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2024-11-16 07:44:44,338 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 07:44:44,338 INFO L215 NwaCegarLoop]: trace histogram [3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 07:44:44,339 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-16 07:44:44,339 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 07:44:44,339 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 07:44:44,339 INFO L85 PathProgramCache]: Analyzing trace with hash -153294130, now seen corresponding path program 1 times [2024-11-16 07:44:44,339 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 07:44:44,340 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1552619999] [2024-11-16 07:44:44,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 07:44:44,340 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 07:44:44,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:44:44,396 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 07:44:44,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:44:44,405 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 07:44:44,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:44:44,408 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 07:44:44,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:44:44,413 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-16 07:44:44,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:44:44,416 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-16 07:44:44,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:44:44,421 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-16 07:44:44,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:44:44,430 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-16 07:44:44,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:44:44,440 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-16 07:44:44,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:44:44,442 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-11-16 07:44:44,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:44:44,444 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-11-16 07:44:44,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:44:44,445 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-11-16 07:44:44,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:44:44,446 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2024-11-16 07:44:44,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:44:44,448 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2024-11-16 07:44:44,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:44:44,449 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2024-11-16 07:44:44,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:44:44,450 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2024-11-16 07:44:44,451 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 07:44:44,451 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1552619999] [2024-11-16 07:44:44,451 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1552619999] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 07:44:44,451 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 07:44:44,451 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 07:44:44,452 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [356879530] [2024-11-16 07:44:44,452 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 07:44:44,452 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 07:44:44,452 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 07:44:44,453 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 07:44:44,453 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-16 07:44:44,453 INFO L87 Difference]: Start difference. First operand 4417 states and 6950 transitions. Second operand has 7 states, 7 states have (on average 13.857142857142858) internal successors, (97), 3 states have internal predecessors, (97), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-16 07:44:46,194 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 07:44:46,195 INFO L93 Difference]: Finished difference Result 10726 states and 17141 transitions. [2024-11-16 07:44:46,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-16 07:44:46,195 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.857142857142858) internal successors, (97), 3 states have internal predecessors, (97), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 143 [2024-11-16 07:44:46,195 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 07:44:46,227 INFO L225 Difference]: With dead ends: 10726 [2024-11-16 07:44:46,227 INFO L226 Difference]: Without dead ends: 7242 [2024-11-16 07:44:46,238 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-11-16 07:44:46,238 INFO L432 NwaCegarLoop]: 209 mSDtfsCounter, 1374 mSDsluCounter, 734 mSDsCounter, 0 mSdLazyCounter, 1820 mSolverCounterSat, 477 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1389 SdHoareTripleChecker+Valid, 943 SdHoareTripleChecker+Invalid, 2297 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 477 IncrementalHoareTripleChecker+Valid, 1820 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-16 07:44:46,240 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1389 Valid, 943 Invalid, 2297 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [477 Valid, 1820 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-16 07:44:46,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7242 states. [2024-11-16 07:44:46,471 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7242 to 7019. [2024-11-16 07:44:46,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7019 states, 6015 states have (on average 1.4872817955112219) internal successors, (8946), 6022 states have internal predecessors, (8946), 975 states have call successors, (975), 24 states have call predecessors, (975), 28 states have return successors, (1092), 974 states have call predecessors, (1092), 974 states have call successors, (1092) [2024-11-16 07:44:46,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7019 states to 7019 states and 11013 transitions. [2024-11-16 07:44:46,518 INFO L78 Accepts]: Start accepts. Automaton has 7019 states and 11013 transitions. Word has length 143 [2024-11-16 07:44:46,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 07:44:46,519 INFO L471 AbstractCegarLoop]: Abstraction has 7019 states and 11013 transitions. [2024-11-16 07:44:46,519 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.857142857142858) internal successors, (97), 3 states have internal predecessors, (97), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-16 07:44:46,519 INFO L276 IsEmpty]: Start isEmpty. Operand 7019 states and 11013 transitions. [2024-11-16 07:44:46,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2024-11-16 07:44:46,581 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 07:44:46,582 INFO L215 NwaCegarLoop]: trace histogram [3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 07:44:46,582 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-16 07:44:46,582 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 07:44:46,582 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 07:44:46,583 INFO L85 PathProgramCache]: Analyzing trace with hash -1333036112, now seen corresponding path program 1 times [2024-11-16 07:44:46,583 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 07:44:46,583 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [274310622] [2024-11-16 07:44:46,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 07:44:46,583 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 07:44:46,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:44:46,642 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 07:44:46,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:44:46,651 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 07:44:46,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:44:46,653 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 07:44:46,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:44:46,655 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-16 07:44:46,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:44:46,657 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-16 07:44:46,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:44:46,659 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-16 07:44:46,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:44:46,669 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-16 07:44:46,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:44:46,679 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-16 07:44:46,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:44:46,681 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2024-11-16 07:44:46,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:44:46,682 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-16 07:44:46,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:44:46,684 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-11-16 07:44:46,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:44:46,685 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-11-16 07:44:46,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:44:46,687 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-11-16 07:44:46,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:44:46,688 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2024-11-16 07:44:46,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:44:46,690 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2024-11-16 07:44:46,690 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 07:44:46,690 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [274310622] [2024-11-16 07:44:46,690 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [274310622] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 07:44:46,690 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 07:44:46,690 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 07:44:46,690 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [49919421] [2024-11-16 07:44:46,690 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 07:44:46,690 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 07:44:46,691 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 07:44:46,691 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 07:44:46,691 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-16 07:44:46,691 INFO L87 Difference]: Start difference. First operand 7019 states and 11013 transitions. Second operand has 7 states, 7 states have (on average 14.0) internal successors, (98), 3 states have internal predecessors, (98), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-16 07:44:48,456 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 07:44:48,456 INFO L93 Difference]: Finished difference Result 17562 states and 27973 transitions. [2024-11-16 07:44:48,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-16 07:44:48,457 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.0) internal successors, (98), 3 states have internal predecessors, (98), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 144 [2024-11-16 07:44:48,457 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 07:44:48,502 INFO L225 Difference]: With dead ends: 17562 [2024-11-16 07:44:48,503 INFO L226 Difference]: Without dead ends: 11956 [2024-11-16 07:44:48,521 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-11-16 07:44:48,521 INFO L432 NwaCegarLoop]: 198 mSDtfsCounter, 1371 mSDsluCounter, 723 mSDsCounter, 0 mSdLazyCounter, 1800 mSolverCounterSat, 481 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1386 SdHoareTripleChecker+Valid, 921 SdHoareTripleChecker+Invalid, 2281 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 481 IncrementalHoareTripleChecker+Valid, 1800 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-16 07:44:48,521 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1386 Valid, 921 Invalid, 2281 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [481 Valid, 1800 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-16 07:44:48,533 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11956 states. [2024-11-16 07:44:48,947 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11956 to 11733. [2024-11-16 07:44:48,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11733 states, 10123 states have (on average 1.4818729625605058) internal successors, (15001), 10130 states have internal predecessors, (15001), 1581 states have call successors, (1581), 24 states have call predecessors, (1581), 28 states have return successors, (1776), 1580 states have call predecessors, (1776), 1580 states have call successors, (1776) [2024-11-16 07:44:49,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11733 states to 11733 states and 18358 transitions. [2024-11-16 07:44:49,009 INFO L78 Accepts]: Start accepts. Automaton has 11733 states and 18358 transitions. Word has length 144 [2024-11-16 07:44:49,010 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 07:44:49,010 INFO L471 AbstractCegarLoop]: Abstraction has 11733 states and 18358 transitions. [2024-11-16 07:44:49,011 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.0) internal successors, (98), 3 states have internal predecessors, (98), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-16 07:44:49,011 INFO L276 IsEmpty]: Start isEmpty. Operand 11733 states and 18358 transitions. [2024-11-16 07:44:49,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2024-11-16 07:44:49,035 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 07:44:49,035 INFO L215 NwaCegarLoop]: trace histogram [3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 07:44:49,036 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-16 07:44:49,036 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 07:44:49,036 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 07:44:49,037 INFO L85 PathProgramCache]: Analyzing trace with hash -1938180082, now seen corresponding path program 1 times [2024-11-16 07:44:49,037 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 07:44:49,037 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [414626942] [2024-11-16 07:44:49,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 07:44:49,037 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 07:44:49,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:44:49,097 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 07:44:49,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:44:49,107 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 07:44:49,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:44:49,110 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 07:44:49,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:44:49,112 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-16 07:44:49,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:44:49,115 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-16 07:44:49,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:44:49,117 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-16 07:44:49,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:44:49,126 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-16 07:44:49,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:44:49,136 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-16 07:44:49,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:44:49,138 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-16 07:44:49,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:44:49,141 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-11-16 07:44:49,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:44:49,142 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-11-16 07:44:49,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:44:49,145 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-11-16 07:44:49,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:44:49,146 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2024-11-16 07:44:49,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:44:49,151 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2024-11-16 07:44:49,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:44:49,153 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2024-11-16 07:44:49,153 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 07:44:49,154 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [414626942] [2024-11-16 07:44:49,154 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [414626942] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 07:44:49,154 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 07:44:49,154 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 07:44:49,154 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1365020297] [2024-11-16 07:44:49,154 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 07:44:49,155 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 07:44:49,156 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 07:44:49,157 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 07:44:49,157 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-16 07:44:49,157 INFO L87 Difference]: Start difference. First operand 11733 states and 18358 transitions. Second operand has 7 states, 7 states have (on average 14.142857142857142) internal successors, (99), 3 states have internal predecessors, (99), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-16 07:44:50,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 07:44:50,989 INFO L93 Difference]: Finished difference Result 30564 states and 48547 transitions. [2024-11-16 07:44:50,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-16 07:44:50,990 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.142857142857142) internal successors, (99), 3 states have internal predecessors, (99), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 145 [2024-11-16 07:44:50,990 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 07:44:51,060 INFO L225 Difference]: With dead ends: 30564 [2024-11-16 07:44:51,060 INFO L226 Difference]: Without dead ends: 20834 [2024-11-16 07:44:51,088 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-11-16 07:44:51,089 INFO L432 NwaCegarLoop]: 200 mSDtfsCounter, 1368 mSDsluCounter, 732 mSDsCounter, 0 mSdLazyCounter, 1793 mSolverCounterSat, 486 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1383 SdHoareTripleChecker+Valid, 932 SdHoareTripleChecker+Invalid, 2279 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 486 IncrementalHoareTripleChecker+Valid, 1793 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-16 07:44:51,089 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1383 Valid, 932 Invalid, 2279 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [486 Valid, 1793 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-16 07:44:51,106 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20834 states. [2024-11-16 07:44:51,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20834 to 20611. [2024-11-16 07:44:51,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20611 states, 17798 states have (on average 1.4727497471626025) internal successors, (26212), 17805 states have internal predecessors, (26212), 2784 states have call successors, (2784), 24 states have call predecessors, (2784), 28 states have return successors, (3123), 2783 states have call predecessors, (3123), 2783 states have call successors, (3123) [2024-11-16 07:44:51,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20611 states to 20611 states and 32119 transitions. [2024-11-16 07:44:51,960 INFO L78 Accepts]: Start accepts. Automaton has 20611 states and 32119 transitions. Word has length 145 [2024-11-16 07:44:51,960 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 07:44:51,960 INFO L471 AbstractCegarLoop]: Abstraction has 20611 states and 32119 transitions. [2024-11-16 07:44:51,961 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.142857142857142) internal successors, (99), 3 states have internal predecessors, (99), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-16 07:44:51,961 INFO L276 IsEmpty]: Start isEmpty. Operand 20611 states and 32119 transitions. [2024-11-16 07:44:51,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2024-11-16 07:44:51,990 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 07:44:51,990 INFO L215 NwaCegarLoop]: trace histogram [3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 07:44:51,990 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-16 07:44:51,990 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 07:44:51,990 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 07:44:51,991 INFO L85 PathProgramCache]: Analyzing trace with hash 645433360, now seen corresponding path program 1 times [2024-11-16 07:44:51,991 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 07:44:51,991 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1867465524] [2024-11-16 07:44:51,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 07:44:51,991 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 07:44:52,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:44:52,199 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 07:44:52,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:44:52,208 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 07:44:52,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:44:52,211 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 07:44:52,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:44:52,213 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-16 07:44:52,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:44:52,216 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-16 07:44:52,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:44:52,218 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-16 07:44:52,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:44:52,226 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-11-16 07:44:52,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:44:52,235 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-11-16 07:44:52,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:44:52,237 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-11-16 07:44:52,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:44:52,238 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-16 07:44:52,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:44:52,240 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-11-16 07:44:52,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:44:52,242 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2024-11-16 07:44:52,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:44:52,243 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2024-11-16 07:44:52,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:44:52,246 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2024-11-16 07:44:52,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:44:52,247 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2024-11-16 07:44:52,248 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 07:44:52,248 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1867465524] [2024-11-16 07:44:52,248 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1867465524] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 07:44:52,248 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 07:44:52,248 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 07:44:52,248 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [898075195] [2024-11-16 07:44:52,248 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 07:44:52,249 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 07:44:52,249 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 07:44:52,249 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 07:44:52,249 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-16 07:44:52,250 INFO L87 Difference]: Start difference. First operand 20611 states and 32119 transitions. Second operand has 7 states, 7 states have (on average 14.285714285714286) internal successors, (100), 3 states have internal predecessors, (100), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-16 07:44:54,183 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 07:44:54,183 INFO L93 Difference]: Finished difference Result 54962 states and 86982 transitions. [2024-11-16 07:44:54,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-16 07:44:54,183 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.285714285714286) internal successors, (100), 3 states have internal predecessors, (100), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 146 [2024-11-16 07:44:54,183 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 07:44:54,382 INFO L225 Difference]: With dead ends: 54962 [2024-11-16 07:44:54,383 INFO L226 Difference]: Without dead ends: 37174 [2024-11-16 07:44:54,421 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-11-16 07:44:54,421 INFO L432 NwaCegarLoop]: 200 mSDtfsCounter, 1365 mSDsluCounter, 723 mSDsCounter, 0 mSdLazyCounter, 1803 mSolverCounterSat, 482 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1380 SdHoareTripleChecker+Valid, 923 SdHoareTripleChecker+Invalid, 2285 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 482 IncrementalHoareTripleChecker+Valid, 1803 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-16 07:44:54,422 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1380 Valid, 923 Invalid, 2285 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [482 Valid, 1803 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-16 07:44:54,439 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37174 states. [2024-11-16 07:44:55,752 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37174 to 36951. [2024-11-16 07:44:55,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36951 states, 32099 states have (on average 1.4665565905479923) internal successors, (47075), 32106 states have internal predecessors, (47075), 4823 states have call successors, (4823), 24 states have call predecessors, (4823), 28 states have return successors, (5436), 4822 states have call predecessors, (5436), 4822 states have call successors, (5436) [2024-11-16 07:44:55,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36951 states to 36951 states and 57334 transitions. [2024-11-16 07:44:55,960 INFO L78 Accepts]: Start accepts. Automaton has 36951 states and 57334 transitions. Word has length 146 [2024-11-16 07:44:55,962 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 07:44:55,963 INFO L471 AbstractCegarLoop]: Abstraction has 36951 states and 57334 transitions. [2024-11-16 07:44:55,963 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.285714285714286) internal successors, (100), 3 states have internal predecessors, (100), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-16 07:44:55,963 INFO L276 IsEmpty]: Start isEmpty. Operand 36951 states and 57334 transitions. [2024-11-16 07:44:55,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2024-11-16 07:44:55,993 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 07:44:55,993 INFO L215 NwaCegarLoop]: trace histogram [3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 07:44:55,994 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-16 07:44:55,994 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 07:44:55,994 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 07:44:55,994 INFO L85 PathProgramCache]: Analyzing trace with hash 870969646, now seen corresponding path program 1 times [2024-11-16 07:44:55,994 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 07:44:55,995 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1389536000] [2024-11-16 07:44:55,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 07:44:55,995 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 07:44:56,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:44:56,066 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 07:44:56,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:44:56,078 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 07:44:56,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:44:56,080 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 07:44:56,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:44:56,083 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-16 07:44:56,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:44:56,086 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-16 07:44:56,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:44:56,089 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-16 07:44:56,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:44:56,098 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-11-16 07:44:56,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:44:56,107 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-11-16 07:44:56,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:44:56,109 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-11-16 07:44:56,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:44:56,111 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-11-16 07:44:56,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:44:56,113 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-11-16 07:44:56,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:44:56,114 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2024-11-16 07:44:56,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:44:56,116 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2024-11-16 07:44:56,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:44:56,117 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2024-11-16 07:44:56,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:44:56,123 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2024-11-16 07:44:56,123 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 07:44:56,123 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1389536000] [2024-11-16 07:44:56,123 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1389536000] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 07:44:56,123 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 07:44:56,123 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 07:44:56,124 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1260155523] [2024-11-16 07:44:56,124 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 07:44:56,124 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 07:44:56,124 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 07:44:56,125 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 07:44:56,125 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-16 07:44:56,125 INFO L87 Difference]: Start difference. First operand 36951 states and 57334 transitions. Second operand has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 3 states have internal predecessors, (101), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-16 07:44:59,211 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 07:44:59,211 INFO L93 Difference]: Finished difference Result 101361 states and 159168 transitions. [2024-11-16 07:44:59,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-16 07:44:59,212 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 3 states have internal predecessors, (101), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 147 [2024-11-16 07:44:59,212 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 07:44:59,436 INFO L225 Difference]: With dead ends: 101361 [2024-11-16 07:44:59,436 INFO L226 Difference]: Without dead ends: 68228 [2024-11-16 07:44:59,513 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-11-16 07:44:59,514 INFO L432 NwaCegarLoop]: 197 mSDtfsCounter, 1362 mSDsluCounter, 723 mSDsCounter, 0 mSdLazyCounter, 1793 mSolverCounterSat, 481 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1377 SdHoareTripleChecker+Valid, 920 SdHoareTripleChecker+Invalid, 2274 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 481 IncrementalHoareTripleChecker+Valid, 1793 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-11-16 07:44:59,514 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1377 Valid, 920 Invalid, 2274 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [481 Valid, 1793 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-11-16 07:44:59,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68228 states. [2024-11-16 07:45:01,777 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68228 to 68005. [2024-11-16 07:45:01,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68005 states, 59438 states have (on average 1.459520845250513) internal successors, (86751), 59445 states have internal predecessors, (86751), 8538 states have call successors, (8538), 24 states have call predecessors, (8538), 28 states have return successors, (9683), 8537 states have call predecessors, (9683), 8537 states have call successors, (9683) [2024-11-16 07:45:02,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68005 states to 68005 states and 104972 transitions. [2024-11-16 07:45:02,094 INFO L78 Accepts]: Start accepts. Automaton has 68005 states and 104972 transitions. Word has length 147 [2024-11-16 07:45:02,099 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 07:45:02,099 INFO L471 AbstractCegarLoop]: Abstraction has 68005 states and 104972 transitions. [2024-11-16 07:45:02,099 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 3 states have internal predecessors, (101), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-16 07:45:02,099 INFO L276 IsEmpty]: Start isEmpty. Operand 68005 states and 104972 transitions. [2024-11-16 07:45:02,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2024-11-16 07:45:02,131 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 07:45:02,132 INFO L215 NwaCegarLoop]: trace histogram [3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 07:45:02,132 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-16 07:45:02,132 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 07:45:02,132 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 07:45:02,133 INFO L85 PathProgramCache]: Analyzing trace with hash -867150640, now seen corresponding path program 1 times [2024-11-16 07:45:02,133 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 07:45:02,133 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1439922805] [2024-11-16 07:45:02,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 07:45:02,133 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 07:45:02,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:45:02,200 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 07:45:02,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:45:02,211 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 07:45:02,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:45:02,213 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 07:45:02,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:45:02,215 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-16 07:45:02,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:45:02,217 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-16 07:45:02,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:45:02,220 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-16 07:45:02,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:45:02,228 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-16 07:45:02,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:45:02,238 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-11-16 07:45:02,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:45:02,240 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-16 07:45:02,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:45:02,242 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-11-16 07:45:02,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:45:02,243 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-11-16 07:45:02,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:45:02,245 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2024-11-16 07:45:02,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:45:02,249 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-11-16 07:45:02,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:45:02,250 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2024-11-16 07:45:02,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:45:02,252 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2024-11-16 07:45:02,253 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 07:45:02,253 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1439922805] [2024-11-16 07:45:02,253 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1439922805] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 07:45:02,253 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 07:45:02,253 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 07:45:02,253 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1738845471] [2024-11-16 07:45:02,254 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 07:45:02,254 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 07:45:02,254 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 07:45:02,255 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 07:45:02,255 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-16 07:45:02,255 INFO L87 Difference]: Start difference. First operand 68005 states and 104972 transitions. Second operand has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 3 states have internal predecessors, (102), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-16 07:45:06,284 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 07:45:06,284 INFO L93 Difference]: Finished difference Result 128029 states and 200766 transitions. [2024-11-16 07:45:06,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-16 07:45:06,284 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 3 states have internal predecessors, (102), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 148 [2024-11-16 07:45:06,285 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 07:45:06,724 INFO L225 Difference]: With dead ends: 128029 [2024-11-16 07:45:06,725 INFO L226 Difference]: Without dead ends: 127805 [2024-11-16 07:45:06,769 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-11-16 07:45:06,770 INFO L432 NwaCegarLoop]: 199 mSDtfsCounter, 1356 mSDsluCounter, 730 mSDsCounter, 0 mSdLazyCounter, 1797 mSolverCounterSat, 476 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1370 SdHoareTripleChecker+Valid, 929 SdHoareTripleChecker+Invalid, 2273 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 476 IncrementalHoareTripleChecker+Valid, 1797 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-11-16 07:45:06,770 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1370 Valid, 929 Invalid, 2273 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [476 Valid, 1797 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-11-16 07:45:06,856 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127805 states. [2024-11-16 07:45:10,410 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127805 to 127582. [2024-11-16 07:45:10,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 127582 states, 112216 states have (on average 1.4515309759749055) internal successors, (162885), 112223 states have internal predecessors, (162885), 15337 states have call successors, (15337), 24 states have call predecessors, (15337), 28 states have return successors, (17528), 15336 states have call predecessors, (17528), 15336 states have call successors, (17528) [2024-11-16 07:45:11,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127582 states to 127582 states and 195750 transitions. [2024-11-16 07:45:11,494 INFO L78 Accepts]: Start accepts. Automaton has 127582 states and 195750 transitions. Word has length 148 [2024-11-16 07:45:11,495 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 07:45:11,495 INFO L471 AbstractCegarLoop]: Abstraction has 127582 states and 195750 transitions. [2024-11-16 07:45:11,496 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 3 states have internal predecessors, (102), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-16 07:45:11,496 INFO L276 IsEmpty]: Start isEmpty. Operand 127582 states and 195750 transitions. [2024-11-16 07:45:11,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2024-11-16 07:45:11,562 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 07:45:11,562 INFO L215 NwaCegarLoop]: trace histogram [3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 07:45:11,562 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-16 07:45:11,562 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 07:45:11,563 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 07:45:11,563 INFO L85 PathProgramCache]: Analyzing trace with hash -893118898, now seen corresponding path program 1 times [2024-11-16 07:45:11,563 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 07:45:11,563 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1091001945] [2024-11-16 07:45:11,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 07:45:11,563 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 07:45:11,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:45:11,846 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 07:45:11,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:45:11,861 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 07:45:11,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:45:11,864 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 07:45:11,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:45:11,867 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-16 07:45:11,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:45:11,870 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-16 07:45:11,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:45:11,877 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-16 07:45:11,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:45:11,898 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-16 07:45:11,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:45:11,914 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-16 07:45:11,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:45:11,944 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-11-16 07:45:11,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:45:11,947 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-11-16 07:45:11,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:45:11,964 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-11-16 07:45:11,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:45:11,997 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2024-11-16 07:45:11,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:45:12,000 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-11-16 07:45:12,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:45:12,001 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2024-11-16 07:45:12,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:45:12,003 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2024-11-16 07:45:12,003 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 07:45:12,003 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1091001945] [2024-11-16 07:45:12,003 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1091001945] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 07:45:12,003 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 07:45:12,003 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2024-11-16 07:45:12,003 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1804203496] [2024-11-16 07:45:12,003 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 07:45:12,004 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-16 07:45:12,004 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 07:45:12,004 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-16 07:45:12,004 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=273, Unknown=0, NotChecked=0, Total=306 [2024-11-16 07:45:12,005 INFO L87 Difference]: Start difference. First operand 127582 states and 195750 transitions. Second operand has 18 states, 16 states have (on average 6.4375) internal successors, (103), 12 states have internal predecessors, (103), 6 states have call successors, (16), 7 states have call predecessors, (16), 4 states have return successors, (14), 6 states have call predecessors, (14), 6 states have call successors, (14) [2024-11-16 07:45:24,113 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 07:45:24,113 INFO L93 Difference]: Finished difference Result 255286 states and 403738 transitions. [2024-11-16 07:45:24,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2024-11-16 07:45:24,113 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 16 states have (on average 6.4375) internal successors, (103), 12 states have internal predecessors, (103), 6 states have call successors, (16), 7 states have call predecessors, (16), 4 states have return successors, (14), 6 states have call predecessors, (14), 6 states have call successors, (14) Word has length 149 [2024-11-16 07:45:24,114 INFO L84 Accepts]: Finished accepts. some prefix is accepted.