./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/email_spec4_product33.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a046e57d Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/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.dk.eval-mul-div-a046e57-m [2024-10-12 19:31:49,025 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-12 19:31:49,107 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-12 19:31:49,114 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-12 19:31:49,114 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-12 19:31:49,154 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-12 19:31:49,155 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-12 19:31:49,155 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-12 19:31:49,156 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-12 19:31:49,156 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-12 19:31:49,156 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-12 19:31:49,157 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-12 19:31:49,157 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-12 19:31:49,158 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-12 19:31:49,158 INFO L153 SettingsManager]: * Use SBE=true [2024-10-12 19:31:49,158 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-12 19:31:49,159 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-12 19:31:49,159 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-12 19:31:49,159 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-12 19:31:49,160 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-12 19:31:49,160 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-12 19:31:49,160 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-12 19:31:49,161 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-12 19:31:49,161 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-12 19:31:49,161 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-12 19:31:49,162 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-12 19:31:49,162 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-12 19:31:49,162 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-12 19:31:49,163 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-12 19:31:49,163 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-12 19:31:49,163 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-12 19:31:49,164 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-12 19:31:49,164 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-12 19:31:49,164 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-12 19:31:49,165 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-12 19:31:49,165 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-12 19:31:49,165 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-12 19:31:49,165 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-12 19:31:49,166 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-12 19:31:49,166 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-12 19:31:49,166 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-12 19:31:49,171 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-12 19:31:49,171 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7d58750164873693a8e41f270259eb299f067753793be4bdf6f5449bb7376f85 [2024-10-12 19:31:49,491 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-12 19:31:49,509 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-12 19:31:49,512 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-12 19:31:49,513 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-12 19:31:49,513 INFO L274 PluginConnector]: CDTParser initialized [2024-10-12 19:31:49,514 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/email_spec4_product33.cil.c [2024-10-12 19:31:50,896 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-12 19:31:51,227 INFO L384 CDTParser]: Found 1 translation units. [2024-10-12 19:31:51,229 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/email_spec4_product33.cil.c [2024-10-12 19:31:51,255 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7ec2926a3/dbc94282b51a4c389b9415ac769cba90/FLAG504cca9f0 [2024-10-12 19:31:51,472 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7ec2926a3/dbc94282b51a4c389b9415ac769cba90 [2024-10-12 19:31:51,474 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-12 19:31:51,475 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-12 19:31:51,476 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-12 19:31:51,476 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-12 19:31:51,482 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-12 19:31:51,483 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 07:31:51" (1/1) ... [2024-10-12 19:31:51,484 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7ca699bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:31:51, skipping insertion in model container [2024-10-12 19:31:51,484 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 07:31:51" (1/1) ... [2024-10-12 19:31:51,548 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-12 19:31:51,836 WARN L248 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] [2024-10-12 19:31:52,154 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-12 19:31:52,168 INFO L200 MainTranslator]: Completed pre-run [2024-10-12 19:31:52,178 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [48] [2024-10-12 19:31:52,179 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [414] [2024-10-12 19:31:52,180 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [423] [2024-10-12 19:31:52,180 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [750] [2024-10-12 19:31:52,180 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [969] [2024-10-12 19:31:52,180 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Client.i","") [1004] [2024-10-12 19:31:52,181 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"ClientLib.i","") [1415] [2024-10-12 19:31:52,181 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Email.i","") [2480] [2024-10-12 19:31:52,181 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Util.i","") [2617] [2024-10-12 19:31:52,181 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"SignForward_spec.i","") [2634] [2024-10-12 19:31:52,182 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"EmailLib.i","") [2661] [2024-10-12 19:31:52,199 WARN L248 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] [2024-10-12 19:31:52,263 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-12 19:31:52,299 INFO L204 MainTranslator]: Completed translation [2024-10-12 19:31:52,300 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:31:52 WrapperNode [2024-10-12 19:31:52,300 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-12 19:31:52,301 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-12 19:31:52,301 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-12 19:31:52,301 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-12 19:31:52,308 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:31:52" (1/1) ... [2024-10-12 19:31:52,331 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:31:52" (1/1) ... [2024-10-12 19:31:52,406 INFO L138 Inliner]: procedures = 134, calls = 212, calls flagged for inlining = 65, calls inlined = 60, statements flattened = 1079 [2024-10-12 19:31:52,406 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-12 19:31:52,407 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-12 19:31:52,411 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-12 19:31:52,411 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-12 19:31:52,426 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:31:52" (1/1) ... [2024-10-12 19:31:52,430 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:31:52" (1/1) ... [2024-10-12 19:31:52,445 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:31:52" (1/1) ... [2024-10-12 19:31:52,486 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]. [2024-10-12 19:31:52,487 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:31:52" (1/1) ... [2024-10-12 19:31:52,487 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:31:52" (1/1) ... [2024-10-12 19:31:52,508 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:31:52" (1/1) ... [2024-10-12 19:31:52,516 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:31:52" (1/1) ... [2024-10-12 19:31:52,521 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:31:52" (1/1) ... [2024-10-12 19:31:52,526 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:31:52" (1/1) ... [2024-10-12 19:31:52,539 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-12 19:31:52,540 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-12 19:31:52,540 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-12 19:31:52,541 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-12 19:31:52,541 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:31:52" (1/1) ... [2024-10-12 19:31:52,554 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-12 19:31:52,578 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 19:31:52,607 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) [2024-10-12 19:31:52,613 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 [2024-10-12 19:31:52,737 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2024-10-12 19:31:52,741 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2024-10-12 19:31:52,741 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2024-10-12 19:31:52,741 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2024-10-12 19:31:52,741 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2024-10-12 19:31:52,741 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2024-10-12 19:31:52,741 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2024-10-12 19:31:52,742 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2024-10-12 19:31:52,743 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2024-10-12 19:31:52,743 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2024-10-12 19:31:52,743 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2024-10-12 19:31:52,743 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2024-10-12 19:31:52,743 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2024-10-12 19:31:52,743 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2024-10-12 19:31:52,744 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2024-10-12 19:31:52,744 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2024-10-12 19:31:52,744 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2024-10-12 19:31:52,744 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2024-10-12 19:31:52,745 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2024-10-12 19:31:52,746 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2024-10-12 19:31:52,746 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2024-10-12 19:31:52,746 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2024-10-12 19:31:52,746 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2024-10-12 19:31:52,747 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2024-10-12 19:31:52,747 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2024-10-12 19:31:52,747 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2024-10-12 19:31:52,747 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-12 19:31:52,747 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2024-10-12 19:31:52,747 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2024-10-12 19:31:52,747 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2024-10-12 19:31:52,748 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2024-10-12 19:31:52,749 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2024-10-12 19:31:52,749 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2024-10-12 19:31:52,749 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2024-10-12 19:31:52,749 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2024-10-12 19:31:52,749 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2024-10-12 19:31:52,749 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2024-10-12 19:31:52,749 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2024-10-12 19:31:52,749 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2024-10-12 19:31:52,750 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2024-10-12 19:31:52,750 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2024-10-12 19:31:52,750 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2024-10-12 19:31:52,750 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2024-10-12 19:31:52,750 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2024-10-12 19:31:52,750 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2024-10-12 19:31:52,750 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2024-10-12 19:31:52,750 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2024-10-12 19:31:52,751 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-12 19:31:52,751 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-10-12 19:31:52,751 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-10-12 19:31:52,751 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-10-12 19:31:52,752 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2024-10-12 19:31:52,754 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2024-10-12 19:31:52,754 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-12 19:31:52,754 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-12 19:31:52,984 INFO L238 CfgBuilder]: Building ICFG [2024-10-12 19:31:52,987 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-12 19:31:53,935 INFO L? ?]: Removed 501 outVars from TransFormulas that were not future-live. [2024-10-12 19:31:53,935 INFO L287 CfgBuilder]: Performing block encoding [2024-10-12 19:31:54,008 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-12 19:31:54,009 INFO L314 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-12 19:31:54,009 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 07:31:54 BoogieIcfgContainer [2024-10-12 19:31:54,009 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-12 19:31:54,012 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-12 19:31:54,012 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-12 19:31:54,015 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-12 19:31:54,015 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.10 07:31:51" (1/3) ... [2024-10-12 19:31:54,016 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8072aff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 07:31:54, skipping insertion in model container [2024-10-12 19:31:54,016 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:31:52" (2/3) ... [2024-10-12 19:31:54,018 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8072aff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 07:31:54, skipping insertion in model container [2024-10-12 19:31:54,018 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 07:31:54" (3/3) ... [2024-10-12 19:31:54,019 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec4_product33.cil.c [2024-10-12 19:31:54,037 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-12 19:31:54,037 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-12 19:31:54,126 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-12 19:31:54,133 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;@6ce34d5a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-12 19:31:54,133 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-12 19:31:54,141 INFO L276 IsEmpty]: Start isEmpty. Operand has 357 states, 268 states have (on average 1.5597014925373134) internal successors, (418), 272 states have internal predecessors, (418), 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) [2024-10-12 19:31:54,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-10-12 19:31:54,164 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 19:31:54,165 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] [2024-10-12 19:31:54,166 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 19:31:54,170 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 19:31:54,171 INFO L85 PathProgramCache]: Analyzing trace with hash -284518571, now seen corresponding path program 1 times [2024-10-12 19:31:54,177 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 19:31:54,178 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1010825057] [2024-10-12 19:31:54,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 19:31:54,178 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 19:31:54,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:31:54,797 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-12 19:31:54,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:31:54,841 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-12 19:31:54,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:31:54,851 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-12 19:31:54,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:31:54,918 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-12 19:31:54,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:31:54,923 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-12 19:31:54,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:31:54,929 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-12 19:31:54,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:31:54,973 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-10-12 19:31:54,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:31:54,999 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-10-12 19:31:55,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:31:55,004 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-10-12 19:31:55,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:31:55,008 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-10-12 19:31:55,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:31:55,011 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-10-12 19:31:55,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:31:55,015 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-12 19:31:55,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:31:55,018 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-12 19:31:55,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:31:55,021 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-10-12 19:31:55,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:31:55,026 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2024-10-12 19:31:55,027 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 19:31:55,027 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1010825057] [2024-10-12 19:31:55,028 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1010825057] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-12 19:31:55,028 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [966525048] [2024-10-12 19:31:55,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 19:31:55,029 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-12 19:31:55,029 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 19:31:55,031 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) [2024-10-12 19:31:55,033 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-12 19:31:55,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:31:55,376 INFO L255 TraceCheckSpWp]: Trace formula consists of 1008 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-10-12 19:31:55,386 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-12 19:31:55,407 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2024-10-12 19:31:55,408 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-12 19:31:55,408 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [966525048] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 19:31:55,408 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-12 19:31:55,408 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [9] total 9 [2024-10-12 19:31:55,410 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [873010398] [2024-10-12 19:31:55,411 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 19:31:55,416 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-12 19:31:55,416 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 19:31:55,443 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-12 19:31:55,444 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-10-12 19:31:55,448 INFO L87 Difference]: Start difference. First operand has 357 states, 268 states have (on average 1.5597014925373134) internal successors, (418), 272 states have internal predecessors, (418), 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 26.5) internal successors, (53), 2 states have internal predecessors, (53), 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) [2024-10-12 19:31:55,587 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 19:31:55,587 INFO L93 Difference]: Finished difference Result 565 states and 844 transitions. [2024-10-12 19:31:55,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-12 19:31:55,590 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 26.5) internal successors, (53), 2 states have internal predecessors, (53), 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 101 [2024-10-12 19:31:55,591 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 19:31:55,603 INFO L225 Difference]: With dead ends: 565 [2024-10-12 19:31:55,603 INFO L226 Difference]: Without dead ends: 354 [2024-10-12 19:31:55,608 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 125 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-10-12 19:31:55,611 INFO L432 NwaCegarLoop]: 522 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 522 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-12 19:31:55,612 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 522 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-12 19:31:55,628 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 354 states. [2024-10-12 19:31:55,667 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 354 to 354. [2024-10-12 19:31:55,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 354 states, 266 states have (on average 1.5451127819548873) internal successors, (411), 269 states have internal predecessors, (411), 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) [2024-10-12 19:31:55,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 354 states to 354 states and 536 transitions. [2024-10-12 19:31:55,675 INFO L78 Accepts]: Start accepts. Automaton has 354 states and 536 transitions. Word has length 101 [2024-10-12 19:31:55,677 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 19:31:55,677 INFO L471 AbstractCegarLoop]: Abstraction has 354 states and 536 transitions. [2024-10-12 19:31:55,677 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 26.5) internal successors, (53), 2 states have internal predecessors, (53), 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) [2024-10-12 19:31:55,677 INFO L276 IsEmpty]: Start isEmpty. Operand 354 states and 536 transitions. [2024-10-12 19:31:55,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2024-10-12 19:31:55,682 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 19:31:55,682 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] [2024-10-12 19:31:55,702 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-10-12 19:31:55,883 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 [2024-10-12 19:31:55,884 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 19:31:55,884 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 19:31:55,884 INFO L85 PathProgramCache]: Analyzing trace with hash -1364968178, now seen corresponding path program 1 times [2024-10-12 19:31:55,884 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 19:31:55,885 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1823478502] [2024-10-12 19:31:55,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 19:31:55,885 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 19:31:55,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:31:56,112 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-12 19:31:56,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:31:56,126 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-12 19:31:56,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:31:56,130 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-12 19:31:56,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:31:56,158 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-12 19:31:56,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:31:56,163 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-12 19:31:56,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:31:56,167 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-12 19:31:56,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:31:56,182 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-10-12 19:31:56,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:31:56,197 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-10-12 19:31:56,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:31:56,201 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-12 19:31:56,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:31:56,203 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-10-12 19:31:56,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:31:56,205 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-10-12 19:31:56,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:31:56,209 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-10-12 19:31:56,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:31:56,211 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-10-12 19:31:56,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:31:56,214 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-10-12 19:31:56,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:31:56,216 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2024-10-12 19:31:56,218 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 19:31:56,219 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1823478502] [2024-10-12 19:31:56,219 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1823478502] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-12 19:31:56,219 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [768110966] [2024-10-12 19:31:56,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 19:31:56,219 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-12 19:31:56,219 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 19:31:56,222 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) [2024-10-12 19:31:56,224 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-12 19:31:56,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:31:56,538 INFO L255 TraceCheckSpWp]: Trace formula consists of 1009 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-12 19:31:56,545 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-12 19:31:56,591 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2024-10-12 19:31:56,592 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-12 19:31:56,592 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [768110966] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 19:31:56,592 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-12 19:31:56,592 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2024-10-12 19:31:56,592 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1663702775] [2024-10-12 19:31:56,592 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 19:31:56,593 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-12 19:31:56,593 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 19:31:56,594 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-12 19:31:56,599 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-10-12 19:31:56,600 INFO L87 Difference]: Start difference. First operand 354 states and 536 transitions. Second operand has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 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) [2024-10-12 19:31:56,678 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 19:31:56,679 INFO L93 Difference]: Finished difference Result 561 states and 831 transitions. [2024-10-12 19:31:56,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-12 19:31:56,679 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 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 102 [2024-10-12 19:31:56,680 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 19:31:56,683 INFO L225 Difference]: With dead ends: 561 [2024-10-12 19:31:56,685 INFO L226 Difference]: Without dead ends: 356 [2024-10-12 19:31:56,686 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 133 GetRequests, 125 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-10-12 19:31:56,687 INFO L432 NwaCegarLoop]: 519 mSDtfsCounter, 0 mSDsluCounter, 518 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1037 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-12 19:31:56,688 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1037 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-12 19:31:56,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 356 states. [2024-10-12 19:31:56,713 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 356 to 356. [2024-10-12 19:31:56,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 356 states, 268 states have (on average 1.541044776119403) internal successors, (413), 271 states have internal predecessors, (413), 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) [2024-10-12 19:31:56,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 356 states to 356 states and 538 transitions. [2024-10-12 19:31:56,717 INFO L78 Accepts]: Start accepts. Automaton has 356 states and 538 transitions. Word has length 102 [2024-10-12 19:31:56,719 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 19:31:56,720 INFO L471 AbstractCegarLoop]: Abstraction has 356 states and 538 transitions. [2024-10-12 19:31:56,720 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 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) [2024-10-12 19:31:56,720 INFO L276 IsEmpty]: Start isEmpty. Operand 356 states and 538 transitions. [2024-10-12 19:31:56,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-10-12 19:31:56,726 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 19:31:56,726 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 19:31:56,743 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-10-12 19:31:56,926 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 [2024-10-12 19:31:56,927 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 19:31:56,928 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 19:31:56,928 INFO L85 PathProgramCache]: Analyzing trace with hash -1525358691, now seen corresponding path program 1 times [2024-10-12 19:31:56,928 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 19:31:56,928 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [227031986] [2024-10-12 19:31:56,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 19:31:56,929 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 19:31:56,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:31:57,114 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-12 19:31:57,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:31:57,126 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-12 19:31:57,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:31:57,134 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-12 19:31:57,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:31:57,158 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-12 19:31:57,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:31:57,162 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-12 19:31:57,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:31:57,164 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-12 19:31:57,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:31:57,177 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-12 19:31:57,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:31:57,190 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-10-12 19:31:57,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:31:57,195 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-10-12 19:31:57,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:31:57,199 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-10-12 19:31:57,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:31:57,201 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-10-12 19:31:57,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:31:57,204 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-10-12 19:31:57,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:31:57,207 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-10-12 19:31:57,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:31:57,210 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-10-12 19:31:57,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:31:57,216 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-10-12 19:31:57,217 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 19:31:57,217 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [227031986] [2024-10-12 19:31:57,217 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [227031986] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-12 19:31:57,219 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1559878160] [2024-10-12 19:31:57,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 19:31:57,220 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-12 19:31:57,220 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 19:31:57,222 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) [2024-10-12 19:31:57,224 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-10-12 19:31:57,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:31:57,510 INFO L255 TraceCheckSpWp]: Trace formula consists of 1033 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-12 19:31:57,516 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-12 19:31:57,560 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2024-10-12 19:31:57,560 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-12 19:31:57,561 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1559878160] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 19:31:57,561 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-12 19:31:57,561 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2024-10-12 19:31:57,561 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1508870030] [2024-10-12 19:31:57,561 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 19:31:57,562 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-12 19:31:57,562 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 19:31:57,563 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-12 19:31:57,563 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-10-12 19:31:57,563 INFO L87 Difference]: Start difference. First operand 356 states and 538 transitions. Second operand has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 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) [2024-10-12 19:31:57,636 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 19:31:57,636 INFO L93 Difference]: Finished difference Result 746 states and 1142 transitions. [2024-10-12 19:31:57,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-12 19:31:57,637 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 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 109 [2024-10-12 19:31:57,637 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 19:31:57,641 INFO L225 Difference]: With dead ends: 746 [2024-10-12 19:31:57,641 INFO L226 Difference]: Without dead ends: 412 [2024-10-12 19:31:57,643 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 140 GetRequests, 132 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-10-12 19:31:57,644 INFO L432 NwaCegarLoop]: 531 mSDtfsCounter, 109 mSDsluCounter, 475 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 124 SdHoareTripleChecker+Valid, 1006 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-12 19:31:57,644 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [124 Valid, 1006 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-12 19:31:57,645 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 412 states. [2024-10-12 19:31:57,667 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 412 to 407. [2024-10-12 19:31:57,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 407 states, 308 states have (on average 1.5584415584415585) internal successors, (480), 311 states have internal predecessors, (480), 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) [2024-10-12 19:31:57,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 407 states to 407 states and 627 transitions. [2024-10-12 19:31:57,677 INFO L78 Accepts]: Start accepts. Automaton has 407 states and 627 transitions. Word has length 109 [2024-10-12 19:31:57,677 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 19:31:57,678 INFO L471 AbstractCegarLoop]: Abstraction has 407 states and 627 transitions. [2024-10-12 19:31:57,679 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 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) [2024-10-12 19:31:57,679 INFO L276 IsEmpty]: Start isEmpty. Operand 407 states and 627 transitions. [2024-10-12 19:31:57,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2024-10-12 19:31:57,683 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 19:31:57,683 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 19:31:57,701 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-10-12 19:31:57,883 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 [2024-10-12 19:31:57,884 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 19:31:57,885 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 19:31:57,885 INFO L85 PathProgramCache]: Analyzing trace with hash 1787945566, now seen corresponding path program 1 times [2024-10-12 19:31:57,885 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 19:31:57,885 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1385968942] [2024-10-12 19:31:57,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 19:31:57,885 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 19:31:57,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:31:58,008 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-12 19:31:58,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:31:58,019 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-12 19:31:58,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:31:58,023 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-12 19:31:58,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:31:58,042 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-12 19:31:58,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:31:58,046 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-12 19:31:58,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:31:58,049 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-12 19:31:58,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:31:58,061 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-12 19:31:58,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:31:58,074 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-12 19:31:58,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:31:58,076 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-10-12 19:31:58,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:31:58,078 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-10-12 19:31:58,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:31:58,079 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-10-12 19:31:58,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:31:58,081 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-10-12 19:31:58,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:31:58,083 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-12 19:31:58,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:31:58,085 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-10-12 19:31:58,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:31:58,086 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-10-12 19:31:58,087 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 19:31:58,087 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1385968942] [2024-10-12 19:31:58,087 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1385968942] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-12 19:31:58,087 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1666144973] [2024-10-12 19:31:58,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 19:31:58,087 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-12 19:31:58,088 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 19:31:58,089 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) [2024-10-12 19:31:58,091 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-10-12 19:31:58,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:31:58,375 INFO L255 TraceCheckSpWp]: Trace formula consists of 1038 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-10-12 19:31:58,379 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-12 19:31:58,449 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-10-12 19:31:58,449 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-12 19:31:58,449 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1666144973] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 19:31:58,450 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-12 19:31:58,450 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 12 [2024-10-12 19:31:58,450 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [846153688] [2024-10-12 19:31:58,450 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 19:31:58,450 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-12 19:31:58,450 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 19:31:58,451 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-12 19:31:58,451 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2024-10-12 19:31:58,451 INFO L87 Difference]: Start difference. First operand 407 states and 627 transitions. Second operand has 5 states, 4 states have (on average 17.5) internal successors, (70), 5 states have internal predecessors, (70), 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) [2024-10-12 19:31:58,568 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 19:31:58,568 INFO L93 Difference]: Finished difference Result 809 states and 1248 transitions. [2024-10-12 19:31:58,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-12 19:31:58,569 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 17.5) internal successors, (70), 5 states have internal predecessors, (70), 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 110 [2024-10-12 19:31:58,569 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 19:31:58,574 INFO L225 Difference]: With dead ends: 809 [2024-10-12 19:31:58,574 INFO L226 Difference]: Without dead ends: 409 [2024-10-12 19:31:58,578 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 141 GetRequests, 131 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2024-10-12 19:31:58,579 INFO L432 NwaCegarLoop]: 511 mSDtfsCounter, 2 mSDsluCounter, 1522 mSDsCounter, 0 mSdLazyCounter, 105 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 2033 SdHoareTripleChecker+Invalid, 105 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 105 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-12 19:31:58,580 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 2033 Invalid, 105 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 105 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-12 19:31:58,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 409 states. [2024-10-12 19:31:58,603 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 409 to 409. [2024-10-12 19:31:58,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 409 states, 309 states have (on average 1.5566343042071198) internal successors, (481), 313 states have internal predecessors, (481), 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) [2024-10-12 19:31:58,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 409 states to 409 states and 630 transitions. [2024-10-12 19:31:58,607 INFO L78 Accepts]: Start accepts. Automaton has 409 states and 630 transitions. Word has length 110 [2024-10-12 19:31:58,607 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 19:31:58,608 INFO L471 AbstractCegarLoop]: Abstraction has 409 states and 630 transitions. [2024-10-12 19:31:58,608 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 17.5) internal successors, (70), 5 states have internal predecessors, (70), 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) [2024-10-12 19:31:58,608 INFO L276 IsEmpty]: Start isEmpty. Operand 409 states and 630 transitions. [2024-10-12 19:31:58,610 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-10-12 19:31:58,610 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 19:31:58,610 INFO L215 NwaCegarLoop]: trace histogram [3, 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] [2024-10-12 19:31:58,632 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-10-12 19:31:58,814 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 [2024-10-12 19:31:58,815 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 19:31:58,815 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 19:31:58,815 INFO L85 PathProgramCache]: Analyzing trace with hash -1707491675, now seen corresponding path program 1 times [2024-10-12 19:31:58,815 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 19:31:58,815 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1128911331] [2024-10-12 19:31:58,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 19:31:58,816 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 19:31:58,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:31:58,989 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-12 19:31:58,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:31:59,002 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-12 19:31:59,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:31:59,006 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-12 19:31:59,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:31:59,031 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-12 19:31:59,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:31:59,057 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-10-12 19:31:59,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:31:59,061 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-10-12 19:31:59,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:31:59,075 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-10-12 19:31:59,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:31:59,090 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-12 19:31:59,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:31:59,093 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-10-12 19:31:59,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:31:59,095 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-12 19:31:59,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:31:59,097 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-10-12 19:31:59,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:31:59,099 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-10-12 19:31:59,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:31:59,101 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-10-12 19:31:59,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:31:59,103 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-10-12 19:31:59,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:31:59,105 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-10-12 19:31:59,106 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 19:31:59,106 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1128911331] [2024-10-12 19:31:59,106 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1128911331] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-12 19:31:59,106 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1384782354] [2024-10-12 19:31:59,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 19:31:59,106 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-12 19:31:59,107 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 19:31:59,108 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) [2024-10-12 19:31:59,110 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-10-12 19:31:59,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:31:59,383 INFO L255 TraceCheckSpWp]: Trace formula consists of 1039 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-10-12 19:31:59,387 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-12 19:31:59,449 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-10-12 19:31:59,450 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-12 19:31:59,450 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1384782354] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 19:31:59,450 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-12 19:31:59,450 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [12] total 15 [2024-10-12 19:31:59,450 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [895888668] [2024-10-12 19:31:59,450 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 19:31:59,451 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-12 19:31:59,451 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 19:31:59,452 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-12 19:31:59,452 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=180, Unknown=0, NotChecked=0, Total=210 [2024-10-12 19:31:59,452 INFO L87 Difference]: Start difference. First operand 409 states and 630 transitions. Second operand has 5 states, 5 states have (on average 14.4) internal successors, (72), 5 states have internal predecessors, (72), 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) [2024-10-12 19:31:59,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 19:31:59,569 INFO L93 Difference]: Finished difference Result 811 states and 1253 transitions. [2024-10-12 19:31:59,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-12 19:31:59,570 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.4) internal successors, (72), 5 states have internal predecessors, (72), 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 111 [2024-10-12 19:31:59,570 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 19:31:59,573 INFO L225 Difference]: With dead ends: 811 [2024-10-12 19:31:59,573 INFO L226 Difference]: Without dead ends: 411 [2024-10-12 19:31:59,575 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 144 GetRequests, 131 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=180, Unknown=0, NotChecked=0, Total=210 [2024-10-12 19:31:59,576 INFO L432 NwaCegarLoop]: 509 mSDtfsCounter, 2 mSDsluCounter, 1510 mSDsCounter, 0 mSdLazyCounter, 117 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 2019 SdHoareTripleChecker+Invalid, 117 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 117 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-12 19:31:59,576 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 2019 Invalid, 117 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 117 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-12 19:31:59,577 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 411 states. [2024-10-12 19:31:59,598 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 411 to 411. [2024-10-12 19:31:59,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 411 states, 310 states have (on average 1.5548387096774194) internal successors, (482), 315 states have internal predecessors, (482), 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) [2024-10-12 19:31:59,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 411 states to 411 states and 636 transitions. [2024-10-12 19:31:59,605 INFO L78 Accepts]: Start accepts. Automaton has 411 states and 636 transitions. Word has length 111 [2024-10-12 19:31:59,605 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 19:31:59,605 INFO L471 AbstractCegarLoop]: Abstraction has 411 states and 636 transitions. [2024-10-12 19:31:59,605 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.4) internal successors, (72), 5 states have internal predecessors, (72), 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) [2024-10-12 19:31:59,606 INFO L276 IsEmpty]: Start isEmpty. Operand 411 states and 636 transitions. [2024-10-12 19:31:59,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2024-10-12 19:31:59,608 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 19:31:59,608 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-10-12 19:31:59,628 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-10-12 19:31:59,809 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 [2024-10-12 19:31:59,810 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 19:31:59,810 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 19:31:59,810 INFO L85 PathProgramCache]: Analyzing trace with hash 1579676175, now seen corresponding path program 1 times [2024-10-12 19:31:59,810 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 19:31:59,811 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1627547163] [2024-10-12 19:31:59,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 19:31:59,811 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 19:31:59,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:31:59,940 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-12 19:31:59,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:31:59,951 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-12 19:31:59,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:31:59,954 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-12 19:31:59,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:31:59,956 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-12 19:31:59,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:31:59,959 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-12 19:31:59,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:31:59,977 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-10-12 19:31:59,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:31:59,988 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-10-12 19:31:59,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:32:00,000 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-10-12 19:32:00,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:32:00,023 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-10-12 19:32:00,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:32:00,028 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-12 19:32:00,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:32:00,030 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-12 19:32:00,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:32:00,032 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-10-12 19:32:00,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:32:00,034 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2024-10-12 19:32:00,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:32:00,036 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-12 19:32:00,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:32:00,039 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-10-12 19:32:00,039 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 19:32:00,039 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1627547163] [2024-10-12 19:32:00,039 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1627547163] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 19:32:00,039 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 19:32:00,039 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-10-12 19:32:00,039 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1149613121] [2024-10-12 19:32:00,040 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 19:32:00,040 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-12 19:32:00,040 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 19:32:00,041 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-12 19:32:00,041 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-10-12 19:32:00,041 INFO L87 Difference]: Start difference. First operand 411 states and 636 transitions. Second operand has 9 states, 8 states have (on average 8.5) internal successors, (68), 5 states have internal predecessors, (68), 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) [2024-10-12 19:32:02,510 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 19:32:02,510 INFO L93 Difference]: Finished difference Result 982 states and 1539 transitions. [2024-10-12 19:32:02,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-10-12 19:32:02,511 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 8.5) internal successors, (68), 5 states have internal predecessors, (68), 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 112 [2024-10-12 19:32:02,511 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 19:32:02,517 INFO L225 Difference]: With dead ends: 982 [2024-10-12 19:32:02,518 INFO L226 Difference]: Without dead ends: 590 [2024-10-12 19:32:02,520 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 [2024-10-12 19:32:02,522 INFO L432 NwaCegarLoop]: 167 mSDtfsCounter, 1188 mSDsluCounter, 849 mSDsCounter, 0 mSdLazyCounter, 3020 mSolverCounterSat, 422 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1189 SdHoareTripleChecker+Valid, 1016 SdHoareTripleChecker+Invalid, 3442 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 422 IncrementalHoareTripleChecker+Valid, 3020 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2024-10-12 19:32:02,522 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1189 Valid, 1016 Invalid, 3442 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [422 Valid, 3020 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2024-10-12 19:32:02,524 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 590 states. [2024-10-12 19:32:02,564 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 590 to 411. [2024-10-12 19:32:02,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 411 states, 310 states have (on average 1.5548387096774194) internal successors, (482), 315 states have internal predecessors, (482), 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) [2024-10-12 19:32:02,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 411 states to 411 states and 635 transitions. [2024-10-12 19:32:02,568 INFO L78 Accepts]: Start accepts. Automaton has 411 states and 635 transitions. Word has length 112 [2024-10-12 19:32:02,568 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 19:32:02,568 INFO L471 AbstractCegarLoop]: Abstraction has 411 states and 635 transitions. [2024-10-12 19:32:02,569 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 8.5) internal successors, (68), 5 states have internal predecessors, (68), 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) [2024-10-12 19:32:02,569 INFO L276 IsEmpty]: Start isEmpty. Operand 411 states and 635 transitions. [2024-10-12 19:32:02,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2024-10-12 19:32:02,571 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 19:32:02,571 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-10-12 19:32:02,571 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-12 19:32:02,571 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 19:32:02,572 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 19:32:02,572 INFO L85 PathProgramCache]: Analyzing trace with hash 1743002424, now seen corresponding path program 2 times [2024-10-12 19:32:02,572 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 19:32:02,572 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [266877265] [2024-10-12 19:32:02,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 19:32:02,572 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 19:32:02,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:32:02,698 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-12 19:32:02,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:32:02,709 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-12 19:32:02,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:32:02,712 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-12 19:32:02,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:32:02,714 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-12 19:32:02,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:32:02,715 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-12 19:32:02,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:32:02,733 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-12 19:32:02,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:32:02,745 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-10-12 19:32:02,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:32:02,755 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-10-12 19:32:02,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:32:02,757 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-10-12 19:32:02,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:32:02,760 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-10-12 19:32:02,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:32:02,761 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-10-12 19:32:02,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:32:02,763 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-12 19:32:02,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:32:02,765 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-12 19:32:02,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:32:02,766 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-10-12 19:32:02,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:32:02,768 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-10-12 19:32:02,768 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 19:32:02,768 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [266877265] [2024-10-12 19:32:02,768 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [266877265] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 19:32:02,768 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 19:32:02,768 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-10-12 19:32:02,769 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [513433396] [2024-10-12 19:32:02,769 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 19:32:02,769 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-12 19:32:02,769 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 19:32:02,770 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-12 19:32:02,770 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-10-12 19:32:02,770 INFO L87 Difference]: Start difference. First operand 411 states and 635 transitions. Second operand has 9 states, 8 states have (on average 8.625) internal successors, (69), 5 states have internal predecessors, (69), 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) [2024-10-12 19:32:05,237 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 19:32:05,238 INFO L93 Difference]: Finished difference Result 984 states and 1542 transitions. [2024-10-12 19:32:05,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-10-12 19:32:05,238 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 8.625) internal successors, (69), 5 states have internal predecessors, (69), 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 113 [2024-10-12 19:32:05,239 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 19:32:05,243 INFO L225 Difference]: With dead ends: 984 [2024-10-12 19:32:05,244 INFO L226 Difference]: Without dead ends: 592 [2024-10-12 19:32:05,246 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 [2024-10-12 19:32:05,247 INFO L432 NwaCegarLoop]: 166 mSDtfsCounter, 1188 mSDsluCounter, 849 mSDsCounter, 0 mSdLazyCounter, 2979 mSolverCounterSat, 435 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1189 SdHoareTripleChecker+Valid, 1015 SdHoareTripleChecker+Invalid, 3414 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 435 IncrementalHoareTripleChecker+Valid, 2979 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2024-10-12 19:32:05,247 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1189 Valid, 1015 Invalid, 3414 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [435 Valid, 2979 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2024-10-12 19:32:05,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 592 states. [2024-10-12 19:32:05,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 592 to 413. [2024-10-12 19:32:05,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 413 states, 311 states have (on average 1.5530546623794212) internal successors, (483), 317 states have internal predecessors, (483), 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) [2024-10-12 19:32:05,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 413 states to 413 states and 638 transitions. [2024-10-12 19:32:05,298 INFO L78 Accepts]: Start accepts. Automaton has 413 states and 638 transitions. Word has length 113 [2024-10-12 19:32:05,299 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 19:32:05,299 INFO L471 AbstractCegarLoop]: Abstraction has 413 states and 638 transitions. [2024-10-12 19:32:05,299 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 8.625) internal successors, (69), 5 states have internal predecessors, (69), 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) [2024-10-12 19:32:05,299 INFO L276 IsEmpty]: Start isEmpty. Operand 413 states and 638 transitions. [2024-10-12 19:32:05,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2024-10-12 19:32:05,302 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 19:32:05,302 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-10-12 19:32:05,302 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-12 19:32:05,302 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 19:32:05,303 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 19:32:05,303 INFO L85 PathProgramCache]: Analyzing trace with hash 2133076426, now seen corresponding path program 1 times [2024-10-12 19:32:05,303 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 19:32:05,303 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [724189171] [2024-10-12 19:32:05,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 19:32:05,304 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 19:32:05,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:32:05,455 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-12 19:32:05,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:32:05,467 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-12 19:32:05,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:32:05,470 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-12 19:32:05,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:32:05,475 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-12 19:32:05,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:32:05,478 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-12 19:32:05,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:32:05,503 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-12 19:32:05,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:32:05,543 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-10-12 19:32:05,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:32:05,558 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-10-12 19:32:05,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:32:05,561 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-12 19:32:05,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:32:05,563 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-10-12 19:32:05,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:32:05,564 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-10-12 19:32:05,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:32:05,566 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-10-12 19:32:05,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:32:05,568 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-10-12 19:32:05,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:32:05,570 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-10-12 19:32:05,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:32:05,573 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-10-12 19:32:05,573 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 19:32:05,573 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [724189171] [2024-10-12 19:32:05,574 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [724189171] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 19:32:05,574 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 19:32:05,574 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-10-12 19:32:05,574 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1275374707] [2024-10-12 19:32:05,574 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 19:32:05,575 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-10-12 19:32:05,575 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 19:32:05,576 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-10-12 19:32:05,576 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2024-10-12 19:32:05,576 INFO L87 Difference]: Start difference. First operand 413 states and 638 transitions. Second operand has 12 states, 11 states have (on average 6.636363636363637) internal successors, (73), 8 states have internal predecessors, (73), 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) [2024-10-12 19:32:08,468 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 19:32:08,468 INFO L93 Difference]: Finished difference Result 982 states and 1537 transitions. [2024-10-12 19:32:08,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-12 19:32:08,468 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 6.636363636363637) internal successors, (73), 8 states have internal predecessors, (73), 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 114 [2024-10-12 19:32:08,469 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 19:32:08,473 INFO L225 Difference]: With dead ends: 982 [2024-10-12 19:32:08,473 INFO L226 Difference]: Without dead ends: 592 [2024-10-12 19:32:08,475 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 [2024-10-12 19:32:08,476 INFO L432 NwaCegarLoop]: 165 mSDtfsCounter, 1191 mSDsluCounter, 1244 mSDsCounter, 0 mSdLazyCounter, 4955 mSolverCounterSat, 439 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1192 SdHoareTripleChecker+Valid, 1409 SdHoareTripleChecker+Invalid, 5394 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 439 IncrementalHoareTripleChecker+Valid, 4955 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2024-10-12 19:32:08,476 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1192 Valid, 1409 Invalid, 5394 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [439 Valid, 4955 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2024-10-12 19:32:08,477 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 592 states. [2024-10-12 19:32:08,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 592 to 413. [2024-10-12 19:32:08,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 413 states, 311 states have (on average 1.5530546623794212) internal successors, (483), 317 states have internal predecessors, (483), 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) [2024-10-12 19:32:08,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 413 states to 413 states and 637 transitions. [2024-10-12 19:32:08,512 INFO L78 Accepts]: Start accepts. Automaton has 413 states and 637 transitions. Word has length 114 [2024-10-12 19:32:08,513 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 19:32:08,513 INFO L471 AbstractCegarLoop]: Abstraction has 413 states and 637 transitions. [2024-10-12 19:32:08,513 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 6.636363636363637) internal successors, (73), 8 states have internal predecessors, (73), 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) [2024-10-12 19:32:08,513 INFO L276 IsEmpty]: Start isEmpty. Operand 413 states and 637 transitions. [2024-10-12 19:32:08,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2024-10-12 19:32:08,515 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 19:32:08,515 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-10-12 19:32:08,515 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-12 19:32:08,515 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 19:32:08,516 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 19:32:08,516 INFO L85 PathProgramCache]: Analyzing trace with hash -344101902, now seen corresponding path program 2 times [2024-10-12 19:32:08,516 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 19:32:08,516 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1484017042] [2024-10-12 19:32:08,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 19:32:08,517 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 19:32:08,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:32:08,751 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-12 19:32:08,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:32:08,763 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-12 19:32:08,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:32:08,768 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-12 19:32:08,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:32:08,772 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-12 19:32:08,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:32:08,775 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-12 19:32:08,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:32:08,818 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-12 19:32:08,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:32:08,864 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-12 19:32:08,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:32:08,880 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-10-12 19:32:08,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:32:08,882 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-10-12 19:32:08,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:32:08,884 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-10-12 19:32:08,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:32:08,886 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-10-12 19:32:08,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:32:08,888 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-10-12 19:32:08,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:32:08,890 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-10-12 19:32:08,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:32:08,893 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-10-12 19:32:08,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:32:08,896 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-10-12 19:32:08,896 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 19:32:08,896 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1484017042] [2024-10-12 19:32:08,896 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1484017042] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 19:32:08,896 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 19:32:08,896 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-10-12 19:32:08,896 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [851384098] [2024-10-12 19:32:08,897 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 19:32:08,897 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-10-12 19:32:08,897 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 19:32:08,898 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-10-12 19:32:08,898 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2024-10-12 19:32:08,899 INFO L87 Difference]: Start difference. First operand 413 states and 637 transitions. Second operand has 12 states, 11 states have (on average 6.7272727272727275) internal successors, (74), 8 states have internal predecessors, (74), 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) [2024-10-12 19:32:11,737 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 19:32:11,738 INFO L93 Difference]: Finished difference Result 984 states and 1543 transitions. [2024-10-12 19:32:11,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-12 19:32:11,738 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 6.7272727272727275) internal successors, (74), 8 states have internal predecessors, (74), 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 115 [2024-10-12 19:32:11,738 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 19:32:11,742 INFO L225 Difference]: With dead ends: 984 [2024-10-12 19:32:11,742 INFO L226 Difference]: Without dead ends: 594 [2024-10-12 19:32:11,744 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 [2024-10-12 19:32:11,745 INFO L432 NwaCegarLoop]: 166 mSDtfsCounter, 1184 mSDsluCounter, 1244 mSDsCounter, 0 mSdLazyCounter, 5069 mSolverCounterSat, 424 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1185 SdHoareTripleChecker+Valid, 1410 SdHoareTripleChecker+Invalid, 5493 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 424 IncrementalHoareTripleChecker+Valid, 5069 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2024-10-12 19:32:11,745 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1185 Valid, 1410 Invalid, 5493 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [424 Valid, 5069 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2024-10-12 19:32:11,746 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 594 states. [2024-10-12 19:32:11,774 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 594 to 415. [2024-10-12 19:32:11,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 415 states, 312 states have (on average 1.5512820512820513) internal successors, (484), 319 states have internal predecessors, (484), 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) [2024-10-12 19:32:11,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 415 states to 415 states and 643 transitions. [2024-10-12 19:32:11,777 INFO L78 Accepts]: Start accepts. Automaton has 415 states and 643 transitions. Word has length 115 [2024-10-12 19:32:11,778 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 19:32:11,778 INFO L471 AbstractCegarLoop]: Abstraction has 415 states and 643 transitions. [2024-10-12 19:32:11,778 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 6.7272727272727275) internal successors, (74), 8 states have internal predecessors, (74), 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) [2024-10-12 19:32:11,778 INFO L276 IsEmpty]: Start isEmpty. Operand 415 states and 643 transitions. [2024-10-12 19:32:11,780 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2024-10-12 19:32:11,780 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 19:32:11,780 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-10-12 19:32:11,780 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-12 19:32:11,780 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 19:32:11,781 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 19:32:11,781 INFO L85 PathProgramCache]: Analyzing trace with hash 1421889957, now seen corresponding path program 1 times [2024-10-12 19:32:11,781 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 19:32:11,781 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [465249948] [2024-10-12 19:32:11,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 19:32:11,781 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 19:32:11,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:32:11,924 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-12 19:32:11,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:32:11,934 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-12 19:32:11,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:32:11,938 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-12 19:32:11,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:32:11,960 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-12 19:32:11,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:32:11,967 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-12 19:32:11,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:32:11,971 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-12 19:32:11,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:32:11,984 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-12 19:32:11,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:32:11,997 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-12 19:32:11,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:32:11,999 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-10-12 19:32:12,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:32:12,003 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-10-12 19:32:12,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:32:12,004 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-12 19:32:12,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:32:12,006 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-12 19:32:12,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:32:12,008 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-10-12 19:32:12,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:32:12,009 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-10-12 19:32:12,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:32:12,011 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2024-10-12 19:32:12,011 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 19:32:12,011 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [465249948] [2024-10-12 19:32:12,011 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [465249948] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-12 19:32:12,011 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2116108363] [2024-10-12 19:32:12,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 19:32:12,011 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-12 19:32:12,011 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 19:32:12,013 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) [2024-10-12 19:32:12,014 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-10-12 19:32:12,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:32:12,324 INFO L255 TraceCheckSpWp]: Trace formula consists of 1044 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-12 19:32:12,328 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-12 19:32:12,364 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2024-10-12 19:32:12,365 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-12 19:32:12,470 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2024-10-12 19:32:12,471 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2116108363] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-12 19:32:12,471 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-12 19:32:12,471 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 4, 4] total 15 [2024-10-12 19:32:12,471 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [123168641] [2024-10-12 19:32:12,473 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-12 19:32:12,474 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-10-12 19:32:12,474 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 19:32:12,474 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-10-12 19:32:12,475 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=177, Unknown=0, NotChecked=0, Total=210 [2024-10-12 19:32:12,475 INFO L87 Difference]: Start difference. First operand 415 states and 643 transitions. Second operand has 15 states, 14 states have (on average 8.785714285714286) internal successors, (123), 11 states have internal predecessors, (123), 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) [2024-10-12 19:32:15,511 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 19:32:15,511 INFO L93 Difference]: Finished difference Result 1333 states and 2189 transitions. [2024-10-12 19:32:15,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-10-12 19:32:15,511 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 8.785714285714286) internal successors, (123), 11 states have internal predecessors, (123), 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 116 [2024-10-12 19:32:15,512 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 19:32:15,517 INFO L225 Difference]: With dead ends: 1333 [2024-10-12 19:32:15,517 INFO L226 Difference]: Without dead ends: 944 [2024-10-12 19:32:15,520 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 285 GetRequests, 255 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 149 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=164, Invalid=828, Unknown=0, NotChecked=0, Total=992 [2024-10-12 19:32:15,520 INFO L432 NwaCegarLoop]: 153 mSDtfsCounter, 2259 mSDsluCounter, 1444 mSDsCounter, 0 mSdLazyCounter, 5453 mSolverCounterSat, 776 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2276 SdHoareTripleChecker+Valid, 1597 SdHoareTripleChecker+Invalid, 6229 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 776 IncrementalHoareTripleChecker+Valid, 5453 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2024-10-12 19:32:15,520 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2276 Valid, 1597 Invalid, 6229 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [776 Valid, 5453 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2024-10-12 19:32:15,522 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 944 states. [2024-10-12 19:32:15,563 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 944 to 750. [2024-10-12 19:32:15,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 750 states, 583 states have (on average 1.6072041166380788) internal successors, (937), 590 states have internal predecessors, (937), 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) [2024-10-12 19:32:15,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 750 states to 750 states and 1234 transitions. [2024-10-12 19:32:15,569 INFO L78 Accepts]: Start accepts. Automaton has 750 states and 1234 transitions. Word has length 116 [2024-10-12 19:32:15,569 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 19:32:15,569 INFO L471 AbstractCegarLoop]: Abstraction has 750 states and 1234 transitions. [2024-10-12 19:32:15,569 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 8.785714285714286) internal successors, (123), 11 states have internal predecessors, (123), 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) [2024-10-12 19:32:15,569 INFO L276 IsEmpty]: Start isEmpty. Operand 750 states and 1234 transitions. [2024-10-12 19:32:15,573 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2024-10-12 19:32:15,573 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 19:32:15,573 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] [2024-10-12 19:32:15,592 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-10-12 19:32:15,777 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 [2024-10-12 19:32:15,778 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 19:32:15,778 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 19:32:15,778 INFO L85 PathProgramCache]: Analyzing trace with hash 778534793, now seen corresponding path program 1 times [2024-10-12 19:32:15,778 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 19:32:15,778 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1100417732] [2024-10-12 19:32:15,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 19:32:15,779 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 19:32:15,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:32:15,854 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-12 19:32:15,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:32:15,864 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-12 19:32:15,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:32:15,867 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-12 19:32:15,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:32:15,869 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-12 19:32:15,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:32:15,871 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-12 19:32:15,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:32:15,873 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-12 19:32:15,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:32:15,883 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-10-12 19:32:15,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:32:15,894 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-10-12 19:32:15,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:32:15,896 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-12 19:32:15,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:32:15,898 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-10-12 19:32:15,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:32:15,900 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-10-12 19:32:15,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:32:15,902 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-10-12 19:32:15,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:32:15,904 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-10-12 19:32:15,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:32:15,906 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-10-12 19:32:15,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:32:15,908 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2024-10-12 19:32:15,908 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 19:32:15,908 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1100417732] [2024-10-12 19:32:15,908 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1100417732] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 19:32:15,908 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 19:32:15,908 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-12 19:32:15,908 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [783218503] [2024-10-12 19:32:15,908 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 19:32:15,909 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-12 19:32:15,909 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 19:32:15,909 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-12 19:32:15,909 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-12 19:32:15,909 INFO L87 Difference]: Start difference. First operand 750 states and 1234 transitions. Second operand has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 3 states have internal predecessors, (74), 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) [2024-10-12 19:32:17,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 19:32:17,512 INFO L93 Difference]: Finished difference Result 1928 states and 3248 transitions. [2024-10-12 19:32:17,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-12 19:32:17,512 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 3 states have internal predecessors, (74), 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 120 [2024-10-12 19:32:17,513 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 19:32:17,519 INFO L225 Difference]: With dead ends: 1928 [2024-10-12 19:32:17,519 INFO L226 Difference]: Without dead ends: 1246 [2024-10-12 19:32:17,522 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 [2024-10-12 19:32:17,523 INFO L432 NwaCegarLoop]: 188 mSDtfsCounter, 1289 mSDsluCounter, 596 mSDsCounter, 0 mSdLazyCounter, 1775 mSolverCounterSat, 474 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1304 SdHoareTripleChecker+Valid, 784 SdHoareTripleChecker+Invalid, 2249 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 474 IncrementalHoareTripleChecker+Valid, 1775 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-10-12 19:32:17,523 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1304 Valid, 784 Invalid, 2249 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [474 Valid, 1775 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-10-12 19:32:17,524 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1246 states. [2024-10-12 19:32:17,579 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1246 to 1062. [2024-10-12 19:32:17,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1062 states, 831 states have (on average 1.6233453670276774) internal successors, (1349), 838 states have internal predecessors, (1349), 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) [2024-10-12 19:32:17,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1062 states to 1062 states and 1784 transitions. [2024-10-12 19:32:17,586 INFO L78 Accepts]: Start accepts. Automaton has 1062 states and 1784 transitions. Word has length 120 [2024-10-12 19:32:17,587 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 19:32:17,587 INFO L471 AbstractCegarLoop]: Abstraction has 1062 states and 1784 transitions. [2024-10-12 19:32:17,587 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 3 states have internal predecessors, (74), 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) [2024-10-12 19:32:17,587 INFO L276 IsEmpty]: Start isEmpty. Operand 1062 states and 1784 transitions. [2024-10-12 19:32:17,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2024-10-12 19:32:17,592 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 19:32:17,593 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] [2024-10-12 19:32:17,593 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-12 19:32:17,593 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 19:32:17,593 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 19:32:17,593 INFO L85 PathProgramCache]: Analyzing trace with hash 285205335, now seen corresponding path program 1 times [2024-10-12 19:32:17,593 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 19:32:17,593 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [842697894] [2024-10-12 19:32:17,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 19:32:17,594 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 19:32:17,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:32:17,681 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-12 19:32:17,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:32:17,691 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-12 19:32:17,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:32:17,693 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-12 19:32:17,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:32:17,695 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-12 19:32:17,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:32:17,697 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-12 19:32:17,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:32:17,699 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-12 19:32:17,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:32:17,707 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-12 19:32:17,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:32:17,717 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-10-12 19:32:17,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:32:17,719 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-10-12 19:32:17,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:32:17,721 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-10-12 19:32:17,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:32:17,722 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-10-12 19:32:17,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:32:17,724 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-10-12 19:32:17,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:32:17,725 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-10-12 19:32:17,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:32:17,727 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-10-12 19:32:17,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:32:17,729 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2024-10-12 19:32:17,729 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 19:32:17,729 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [842697894] [2024-10-12 19:32:17,729 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [842697894] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 19:32:17,729 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 19:32:17,729 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-12 19:32:17,730 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [794299316] [2024-10-12 19:32:17,730 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 19:32:17,730 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-12 19:32:17,730 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 19:32:17,731 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-12 19:32:17,731 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-12 19:32:17,731 INFO L87 Difference]: Start difference. First operand 1062 states and 1784 transitions. Second operand has 7 states, 7 states have (on average 10.714285714285714) internal successors, (75), 3 states have internal predecessors, (75), 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) [2024-10-12 19:32:19,168 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 19:32:19,168 INFO L93 Difference]: Finished difference Result 2697 states and 4596 transitions. [2024-10-12 19:32:19,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-12 19:32:19,168 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.714285714285714) internal successors, (75), 3 states have internal predecessors, (75), 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 121 [2024-10-12 19:32:19,168 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 19:32:19,177 INFO L225 Difference]: With dead ends: 2697 [2024-10-12 19:32:19,177 INFO L226 Difference]: Without dead ends: 1753 [2024-10-12 19:32:19,181 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 [2024-10-12 19:32:19,182 INFO L432 NwaCegarLoop]: 172 mSDtfsCounter, 1291 mSDsluCounter, 578 mSDsCounter, 0 mSdLazyCounter, 1716 mSolverCounterSat, 487 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1306 SdHoareTripleChecker+Valid, 750 SdHoareTripleChecker+Invalid, 2203 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 487 IncrementalHoareTripleChecker+Valid, 1716 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-10-12 19:32:19,182 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1306 Valid, 750 Invalid, 2203 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [487 Valid, 1716 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-10-12 19:32:19,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1753 states. [2024-10-12 19:32:19,275 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1753 to 1569. [2024-10-12 19:32:19,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1569 states, 1243 states have (on average 1.6323411102172165) internal successors, (2029), 1250 states have internal predecessors, (2029), 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) [2024-10-12 19:32:19,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1569 states to 1569 states and 2654 transitions. [2024-10-12 19:32:19,284 INFO L78 Accepts]: Start accepts. Automaton has 1569 states and 2654 transitions. Word has length 121 [2024-10-12 19:32:19,284 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 19:32:19,285 INFO L471 AbstractCegarLoop]: Abstraction has 1569 states and 2654 transitions. [2024-10-12 19:32:19,285 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.714285714285714) internal successors, (75), 3 states have internal predecessors, (75), 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) [2024-10-12 19:32:19,285 INFO L276 IsEmpty]: Start isEmpty. Operand 1569 states and 2654 transitions. [2024-10-12 19:32:19,292 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2024-10-12 19:32:19,292 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 19:32:19,292 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] [2024-10-12 19:32:19,293 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-10-12 19:32:19,293 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 19:32:19,293 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 19:32:19,293 INFO L85 PathProgramCache]: Analyzing trace with hash 759764411, now seen corresponding path program 1 times [2024-10-12 19:32:19,293 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 19:32:19,293 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [931019147] [2024-10-12 19:32:19,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 19:32:19,294 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 19:32:19,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:32:19,347 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-12 19:32:19,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:32:19,361 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-12 19:32:19,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:32:19,364 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-12 19:32:19,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:32:19,367 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-12 19:32:19,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:32:19,369 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-12 19:32:19,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:32:19,371 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-12 19:32:19,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:32:19,381 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-10-12 19:32:19,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:32:19,390 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-12 19:32:19,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:32:19,392 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-10-12 19:32:19,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:32:19,394 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-12 19:32:19,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:32:19,396 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-10-12 19:32:19,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:32:19,398 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-10-12 19:32:19,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:32:19,399 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-10-12 19:32:19,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:32:19,404 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-10-12 19:32:19,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:32:19,406 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2024-10-12 19:32:19,406 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 19:32:19,406 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [931019147] [2024-10-12 19:32:19,406 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [931019147] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 19:32:19,406 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 19:32:19,406 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-12 19:32:19,406 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1238914145] [2024-10-12 19:32:19,406 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 19:32:19,407 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-12 19:32:19,407 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 19:32:19,407 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-12 19:32:19,407 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-12 19:32:19,408 INFO L87 Difference]: Start difference. First operand 1569 states and 2654 transitions. Second operand has 7 states, 7 states have (on average 10.857142857142858) internal successors, (76), 3 states have internal predecessors, (76), 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) [2024-10-12 19:32:20,851 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 19:32:20,851 INFO L93 Difference]: Finished difference Result 3843 states and 6621 transitions. [2024-10-12 19:32:20,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-12 19:32:20,851 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.857142857142858) internal successors, (76), 3 states have internal predecessors, (76), 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 122 [2024-10-12 19:32:20,851 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 19:32:20,864 INFO L225 Difference]: With dead ends: 3843 [2024-10-12 19:32:20,864 INFO L226 Difference]: Without dead ends: 2520 [2024-10-12 19:32:20,868 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 [2024-10-12 19:32:20,869 INFO L432 NwaCegarLoop]: 166 mSDtfsCounter, 1288 mSDsluCounter, 572 mSDsCounter, 0 mSdLazyCounter, 1697 mSolverCounterSat, 481 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1303 SdHoareTripleChecker+Valid, 738 SdHoareTripleChecker+Invalid, 2178 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 481 IncrementalHoareTripleChecker+Valid, 1697 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-10-12 19:32:20,869 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1303 Valid, 738 Invalid, 2178 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [481 Valid, 1697 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-10-12 19:32:20,871 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2520 states. [2024-10-12 19:32:20,973 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2520 to 2336. [2024-10-12 19:32:20,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2336 states, 1887 states have (on average 1.6396396396396395) internal successors, (3094), 1894 states have internal predecessors, (3094), 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) [2024-10-12 19:32:20,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2336 states to 2336 states and 3981 transitions. [2024-10-12 19:32:20,986 INFO L78 Accepts]: Start accepts. Automaton has 2336 states and 3981 transitions. Word has length 122 [2024-10-12 19:32:20,987 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 19:32:20,987 INFO L471 AbstractCegarLoop]: Abstraction has 2336 states and 3981 transitions. [2024-10-12 19:32:20,987 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.857142857142858) internal successors, (76), 3 states have internal predecessors, (76), 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) [2024-10-12 19:32:20,987 INFO L276 IsEmpty]: Start isEmpty. Operand 2336 states and 3981 transitions. [2024-10-12 19:32:20,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2024-10-12 19:32:20,998 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 19:32:20,998 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] [2024-10-12 19:32:20,998 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-10-12 19:32:20,998 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 19:32:20,998 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 19:32:20,999 INFO L85 PathProgramCache]: Analyzing trace with hash -1091782058, now seen corresponding path program 1 times [2024-10-12 19:32:20,999 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 19:32:20,999 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [160483649] [2024-10-12 19:32:20,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 19:32:20,999 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 19:32:21,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:32:21,055 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-12 19:32:21,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:32:21,065 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-12 19:32:21,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:32:21,067 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-12 19:32:21,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:32:21,069 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-12 19:32:21,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:32:21,072 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-12 19:32:21,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:32:21,074 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-12 19:32:21,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:32:21,083 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-10-12 19:32:21,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:32:21,092 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-10-12 19:32:21,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:32:21,094 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-10-12 19:32:21,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:32:21,096 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-10-12 19:32:21,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:32:21,097 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-10-12 19:32:21,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:32:21,098 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-10-12 19:32:21,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:32:21,100 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-10-12 19:32:21,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:32:21,101 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-10-12 19:32:21,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:32:21,102 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2024-10-12 19:32:21,102 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 19:32:21,103 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [160483649] [2024-10-12 19:32:21,103 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [160483649] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 19:32:21,103 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 19:32:21,103 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-12 19:32:21,103 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1559284462] [2024-10-12 19:32:21,103 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 19:32:21,103 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-12 19:32:21,103 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 19:32:21,104 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-12 19:32:21,104 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-12 19:32:21,104 INFO L87 Difference]: Start difference. First operand 2336 states and 3981 transitions. Second operand has 7 states, 7 states have (on average 11.0) internal successors, (77), 3 states have internal predecessors, (77), 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) [2024-10-12 19:32:22,594 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 19:32:22,594 INFO L93 Difference]: Finished difference Result 5625 states and 9779 transitions. [2024-10-12 19:32:22,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-12 19:32:22,594 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.0) internal successors, (77), 3 states have internal predecessors, (77), 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 123 [2024-10-12 19:32:22,595 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 19:32:22,616 INFO L225 Difference]: With dead ends: 5625 [2024-10-12 19:32:22,616 INFO L226 Difference]: Without dead ends: 3744 [2024-10-12 19:32:22,623 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 [2024-10-12 19:32:22,624 INFO L432 NwaCegarLoop]: 169 mSDtfsCounter, 1283 mSDsluCounter, 572 mSDsCounter, 0 mSdLazyCounter, 1714 mSolverCounterSat, 478 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1298 SdHoareTripleChecker+Valid, 741 SdHoareTripleChecker+Invalid, 2192 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 478 IncrementalHoareTripleChecker+Valid, 1714 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-10-12 19:32:22,624 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1298 Valid, 741 Invalid, 2192 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [478 Valid, 1714 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-10-12 19:32:22,627 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3744 states. [2024-10-12 19:32:22,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3744 to 3560. [2024-10-12 19:32:22,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3560 states, 2932 states have (on average 1.644611186903138) internal successors, (4822), 2939 states have internal predecessors, (4822), 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) [2024-10-12 19:32:22,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3560 states to 3560 states and 6093 transitions. [2024-10-12 19:32:22,865 INFO L78 Accepts]: Start accepts. Automaton has 3560 states and 6093 transitions. Word has length 123 [2024-10-12 19:32:22,866 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 19:32:22,866 INFO L471 AbstractCegarLoop]: Abstraction has 3560 states and 6093 transitions. [2024-10-12 19:32:22,866 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.0) internal successors, (77), 3 states have internal predecessors, (77), 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) [2024-10-12 19:32:22,866 INFO L276 IsEmpty]: Start isEmpty. Operand 3560 states and 6093 transitions. [2024-10-12 19:32:22,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2024-10-12 19:32:22,881 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 19:32:22,882 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] [2024-10-12 19:32:22,882 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-10-12 19:32:22,882 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 19:32:22,882 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 19:32:22,883 INFO L85 PathProgramCache]: Analyzing trace with hash -2008060801, now seen corresponding path program 1 times [2024-10-12 19:32:22,883 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 19:32:22,884 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1072837784] [2024-10-12 19:32:22,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 19:32:22,884 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 19:32:22,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:32:22,956 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-12 19:32:22,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:32:22,966 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-12 19:32:22,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:32:22,969 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-12 19:32:22,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:32:22,971 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-12 19:32:22,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:32:22,975 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-12 19:32:22,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:32:22,979 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-12 19:32:22,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:32:22,988 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-10-12 19:32:22,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:32:22,999 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-10-12 19:32:23,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:32:23,002 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-10-12 19:32:23,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:32:23,003 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-12 19:32:23,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:32:23,004 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-12 19:32:23,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:32:23,006 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-10-12 19:32:23,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:32:23,007 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-10-12 19:32:23,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:32:23,009 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-10-12 19:32:23,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:32:23,011 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2024-10-12 19:32:23,011 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 19:32:23,011 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1072837784] [2024-10-12 19:32:23,011 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1072837784] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 19:32:23,011 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 19:32:23,011 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-12 19:32:23,012 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1285704052] [2024-10-12 19:32:23,012 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 19:32:23,012 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-12 19:32:23,012 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 19:32:23,013 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-12 19:32:23,013 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-12 19:32:23,013 INFO L87 Difference]: Start difference. First operand 3560 states and 6093 transitions. Second operand has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 3 states have internal predecessors, (78), 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) [2024-10-12 19:32:24,659 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 19:32:24,660 INFO L93 Difference]: Finished difference Result 8604 states and 15019 transitions. [2024-10-12 19:32:24,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-12 19:32:24,660 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 3 states have internal predecessors, (78), 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 124 [2024-10-12 19:32:24,660 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 19:32:24,686 INFO L225 Difference]: With dead ends: 8604 [2024-10-12 19:32:24,687 INFO L226 Difference]: Without dead ends: 5802 [2024-10-12 19:32:24,692 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 [2024-10-12 19:32:24,693 INFO L432 NwaCegarLoop]: 176 mSDtfsCounter, 1281 mSDsluCounter, 581 mSDsCounter, 0 mSdLazyCounter, 1747 mSolverCounterSat, 482 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1296 SdHoareTripleChecker+Valid, 757 SdHoareTripleChecker+Invalid, 2229 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 482 IncrementalHoareTripleChecker+Valid, 1747 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-10-12 19:32:24,693 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1296 Valid, 757 Invalid, 2229 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [482 Valid, 1747 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-10-12 19:32:24,697 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5802 states. [2024-10-12 19:32:24,914 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5802 to 5618. [2024-10-12 19:32:24,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5618 states, 4614 states have (on average 1.6352405721716514) internal successors, (7545), 4621 states have internal predecessors, (7545), 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) [2024-10-12 19:32:24,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5618 states to 5618 states and 9612 transitions. [2024-10-12 19:32:24,951 INFO L78 Accepts]: Start accepts. Automaton has 5618 states and 9612 transitions. Word has length 124 [2024-10-12 19:32:24,951 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 19:32:24,951 INFO L471 AbstractCegarLoop]: Abstraction has 5618 states and 9612 transitions. [2024-10-12 19:32:24,951 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 3 states have internal predecessors, (78), 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) [2024-10-12 19:32:24,952 INFO L276 IsEmpty]: Start isEmpty. Operand 5618 states and 9612 transitions. [2024-10-12 19:32:24,970 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2024-10-12 19:32:24,970 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 19:32:24,970 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] [2024-10-12 19:32:24,970 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-10-12 19:32:24,971 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 19:32:24,971 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 19:32:24,971 INFO L85 PathProgramCache]: Analyzing trace with hash -881246318, now seen corresponding path program 1 times [2024-10-12 19:32:24,971 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 19:32:24,971 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2084837778] [2024-10-12 19:32:24,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 19:32:24,972 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 19:32:25,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:32:25,060 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-12 19:32:25,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:32:25,069 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-12 19:32:25,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:32:25,071 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-12 19:32:25,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:32:25,074 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-12 19:32:25,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:32:25,076 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-12 19:32:25,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:32:25,077 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-12 19:32:25,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:32:25,086 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-10-12 19:32:25,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:32:25,096 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-10-12 19:32:25,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:32:25,098 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-10-12 19:32:25,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:32:25,100 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-10-12 19:32:25,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:32:25,101 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-10-12 19:32:25,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:32:25,103 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-12 19:32:25,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:32:25,105 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-12 19:32:25,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:32:25,106 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-10-12 19:32:25,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:32:25,109 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2024-10-12 19:32:25,110 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 19:32:25,110 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2084837778] [2024-10-12 19:32:25,110 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2084837778] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 19:32:25,110 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 19:32:25,110 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-12 19:32:25,110 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1291522808] [2024-10-12 19:32:25,110 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 19:32:25,110 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-12 19:32:25,110 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 19:32:25,111 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-12 19:32:25,111 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-12 19:32:25,111 INFO L87 Difference]: Start difference. First operand 5618 states and 9612 transitions. Second operand has 7 states, 7 states have (on average 11.285714285714286) internal successors, (79), 3 states have internal predecessors, (79), 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) [2024-10-12 19:32:26,794 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 19:32:26,794 INFO L93 Difference]: Finished difference Result 13965 states and 24376 transitions. [2024-10-12 19:32:26,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-12 19:32:26,795 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.285714285714286) internal successors, (79), 3 states have internal predecessors, (79), 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 125 [2024-10-12 19:32:26,795 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 19:32:26,835 INFO L225 Difference]: With dead ends: 13965 [2024-10-12 19:32:26,836 INFO L226 Difference]: Without dead ends: 9491 [2024-10-12 19:32:26,849 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 [2024-10-12 19:32:26,850 INFO L432 NwaCegarLoop]: 173 mSDtfsCounter, 1282 mSDsluCounter, 578 mSDsCounter, 0 mSdLazyCounter, 1734 mSolverCounterSat, 484 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1297 SdHoareTripleChecker+Valid, 751 SdHoareTripleChecker+Invalid, 2218 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 484 IncrementalHoareTripleChecker+Valid, 1734 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-10-12 19:32:26,850 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1297 Valid, 751 Invalid, 2218 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [484 Valid, 1734 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-10-12 19:32:26,859 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9491 states. [2024-10-12 19:32:27,279 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9491 to 9307. [2024-10-12 19:32:27,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9307 states, 7697 states have (on average 1.633753410419644) internal successors, (12575), 7704 states have internal predecessors, (12575), 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) [2024-10-12 19:32:27,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9307 states to 9307 states and 15932 transitions. [2024-10-12 19:32:27,334 INFO L78 Accepts]: Start accepts. Automaton has 9307 states and 15932 transitions. Word has length 125 [2024-10-12 19:32:27,337 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 19:32:27,337 INFO L471 AbstractCegarLoop]: Abstraction has 9307 states and 15932 transitions. [2024-10-12 19:32:27,338 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.285714285714286) internal successors, (79), 3 states have internal predecessors, (79), 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) [2024-10-12 19:32:27,338 INFO L276 IsEmpty]: Start isEmpty. Operand 9307 states and 15932 transitions. [2024-10-12 19:32:27,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2024-10-12 19:32:27,363 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 19:32:27,363 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] [2024-10-12 19:32:27,364 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-10-12 19:32:27,364 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 19:32:27,364 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 19:32:27,364 INFO L85 PathProgramCache]: Analyzing trace with hash 104002641, now seen corresponding path program 1 times [2024-10-12 19:32:27,365 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 19:32:27,365 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1238984890] [2024-10-12 19:32:27,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 19:32:27,365 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 19:32:27,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:32:27,418 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-12 19:32:27,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:32:27,429 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-12 19:32:27,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:32:27,431 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-12 19:32:27,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:32:27,433 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-12 19:32:27,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:32:27,435 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-12 19:32:27,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:32:27,437 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-12 19:32:27,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:32:27,446 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-10-12 19:32:27,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:32:27,457 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-10-12 19:32:27,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:32:27,459 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-12 19:32:27,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:32:27,461 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-10-12 19:32:27,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:32:27,463 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-10-12 19:32:27,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:32:27,465 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-10-12 19:32:27,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:32:27,466 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-10-12 19:32:27,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:32:27,468 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2024-10-12 19:32:27,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:32:27,470 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2024-10-12 19:32:27,470 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 19:32:27,470 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1238984890] [2024-10-12 19:32:27,470 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1238984890] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 19:32:27,470 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 19:32:27,470 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-12 19:32:27,470 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1944424722] [2024-10-12 19:32:27,471 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 19:32:27,471 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-12 19:32:27,471 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 19:32:27,471 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-12 19:32:27,471 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-12 19:32:27,472 INFO L87 Difference]: Start difference. First operand 9307 states and 15932 transitions. Second operand has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 3 states have internal predecessors, (80), 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) [2024-10-12 19:32:29,130 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 19:32:29,130 INFO L93 Difference]: Finished difference Result 24157 states and 42140 transitions. [2024-10-12 19:32:29,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-12 19:32:29,131 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 3 states have internal predecessors, (80), 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 126 [2024-10-12 19:32:29,131 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 19:32:29,195 INFO L225 Difference]: With dead ends: 24157 [2024-10-12 19:32:29,195 INFO L226 Difference]: Without dead ends: 16451 [2024-10-12 19:32:29,228 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 [2024-10-12 19:32:29,229 INFO L432 NwaCegarLoop]: 177 mSDtfsCounter, 1281 mSDsluCounter, 592 mSDsCounter, 0 mSdLazyCounter, 1707 mSolverCounterSat, 491 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1296 SdHoareTripleChecker+Valid, 769 SdHoareTripleChecker+Invalid, 2198 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 491 IncrementalHoareTripleChecker+Valid, 1707 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-10-12 19:32:29,229 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1296 Valid, 769 Invalid, 2198 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [491 Valid, 1707 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-10-12 19:32:29,243 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16451 states. [2024-10-12 19:32:29,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16451 to 16267. [2024-10-12 19:32:29,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16267 states, 13454 states have (on average 1.6253902185223725) internal successors, (21868), 13461 states have internal predecessors, (21868), 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) [2024-10-12 19:32:30,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16267 states to 16267 states and 27775 transitions. [2024-10-12 19:32:30,007 INFO L78 Accepts]: Start accepts. Automaton has 16267 states and 27775 transitions. Word has length 126 [2024-10-12 19:32:30,008 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 19:32:30,008 INFO L471 AbstractCegarLoop]: Abstraction has 16267 states and 27775 transitions. [2024-10-12 19:32:30,008 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 3 states have internal predecessors, (80), 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) [2024-10-12 19:32:30,008 INFO L276 IsEmpty]: Start isEmpty. Operand 16267 states and 27775 transitions. [2024-10-12 19:32:30,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2024-10-12 19:32:30,040 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 19:32:30,040 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] [2024-10-12 19:32:30,041 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-10-12 19:32:30,041 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 19:32:30,041 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 19:32:30,041 INFO L85 PathProgramCache]: Analyzing trace with hash -1624934031, now seen corresponding path program 1 times [2024-10-12 19:32:30,041 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 19:32:30,041 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1951768243] [2024-10-12 19:32:30,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 19:32:30,042 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 19:32:30,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:32:30,104 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-12 19:32:30,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:32:30,112 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-12 19:32:30,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:32:30,114 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-12 19:32:30,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:32:30,117 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-12 19:32:30,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:32:30,119 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-12 19:32:30,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:32:30,120 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-12 19:32:30,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:32:30,128 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-12 19:32:30,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:32:30,135 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-12 19:32:30,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:32:30,136 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-10-12 19:32:30,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:32:30,138 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-10-12 19:32:30,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:32:30,139 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-12 19:32:30,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:32:30,140 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-10-12 19:32:30,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:32:30,141 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-10-12 19:32:30,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:32:30,142 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-10-12 19:32:30,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:32:30,144 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2024-10-12 19:32:30,144 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 19:32:30,144 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1951768243] [2024-10-12 19:32:30,144 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1951768243] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 19:32:30,144 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 19:32:30,144 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-12 19:32:30,144 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [370978598] [2024-10-12 19:32:30,144 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 19:32:30,145 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-12 19:32:30,145 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 19:32:30,145 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-12 19:32:30,145 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-12 19:32:30,145 INFO L87 Difference]: Start difference. First operand 16267 states and 27775 transitions. Second operand has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 3 states have internal predecessors, (81), 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) [2024-10-12 19:32:32,400 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 19:32:32,400 INFO L93 Difference]: Finished difference Result 43132 states and 75152 transitions. [2024-10-12 19:32:32,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-12 19:32:32,400 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 3 states have internal predecessors, (81), 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 127 [2024-10-12 19:32:32,401 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 19:32:32,492 INFO L225 Difference]: With dead ends: 43132 [2024-10-12 19:32:32,492 INFO L226 Difference]: Without dead ends: 29114 [2024-10-12 19:32:32,525 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 [2024-10-12 19:32:32,525 INFO L432 NwaCegarLoop]: 166 mSDtfsCounter, 1278 mSDsluCounter, 573 mSDsCounter, 0 mSdLazyCounter, 1704 mSolverCounterSat, 488 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1293 SdHoareTripleChecker+Valid, 739 SdHoareTripleChecker+Invalid, 2192 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 488 IncrementalHoareTripleChecker+Valid, 1704 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-10-12 19:32:32,526 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1293 Valid, 739 Invalid, 2192 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [488 Valid, 1704 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-10-12 19:32:32,543 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29114 states. [2024-10-12 19:32:33,412 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29114 to 28930. [2024-10-12 19:32:33,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28930 states, 24078 states have (on average 1.621978569648642) internal successors, (39054), 24085 states have internal predecessors, (39054), 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) [2024-10-12 19:32:33,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28930 states to 28930 states and 49313 transitions. [2024-10-12 19:32:33,547 INFO L78 Accepts]: Start accepts. Automaton has 28930 states and 49313 transitions. Word has length 127 [2024-10-12 19:32:33,548 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 19:32:33,548 INFO L471 AbstractCegarLoop]: Abstraction has 28930 states and 49313 transitions. [2024-10-12 19:32:33,548 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 3 states have internal predecessors, (81), 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) [2024-10-12 19:32:33,548 INFO L276 IsEmpty]: Start isEmpty. Operand 28930 states and 49313 transitions. [2024-10-12 19:32:33,579 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2024-10-12 19:32:33,579 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 19:32:33,579 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] [2024-10-12 19:32:33,580 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-10-12 19:32:33,580 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 19:32:33,580 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 19:32:33,580 INFO L85 PathProgramCache]: Analyzing trace with hash 10340143, now seen corresponding path program 1 times [2024-10-12 19:32:33,580 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 19:32:33,581 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [204338466] [2024-10-12 19:32:33,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 19:32:33,581 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 19:32:33,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:32:33,635 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-12 19:32:33,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:32:33,644 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-12 19:32:33,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:32:33,647 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-12 19:32:33,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:32:33,648 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-12 19:32:33,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:32:33,651 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-12 19:32:33,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:32:33,652 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-12 19:32:33,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:32:33,660 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-10-12 19:32:33,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:32:33,670 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-12 19:32:33,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:32:33,671 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-10-12 19:32:33,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:32:33,673 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-10-12 19:32:33,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:32:33,674 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-10-12 19:32:33,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:32:33,675 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-10-12 19:32:33,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:32:33,676 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-10-12 19:32:33,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:32:33,677 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-10-12 19:32:33,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:32:33,679 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2024-10-12 19:32:33,679 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 19:32:33,679 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [204338466] [2024-10-12 19:32:33,679 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [204338466] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 19:32:33,679 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 19:32:33,679 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-12 19:32:33,679 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [704713054] [2024-10-12 19:32:33,680 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 19:32:33,680 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-12 19:32:33,681 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 19:32:33,681 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-12 19:32:33,681 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-12 19:32:33,681 INFO L87 Difference]: Start difference. First operand 28930 states and 49313 transitions. Second operand has 7 states, 7 states have (on average 11.714285714285714) internal successors, (82), 3 states have internal predecessors, (82), 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) [2024-10-12 19:32:36,760 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 19:32:36,760 INFO L93 Difference]: Finished difference Result 78904 states and 136711 transitions. [2024-10-12 19:32:36,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-12 19:32:36,761 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.714285714285714) internal successors, (82), 3 states have internal predecessors, (82), 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 128 [2024-10-12 19:32:36,761 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 19:32:36,955 INFO L225 Difference]: With dead ends: 78904 [2024-10-12 19:32:36,955 INFO L226 Difference]: Without dead ends: 53002 [2024-10-12 19:32:37,032 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 [2024-10-12 19:32:37,033 INFO L432 NwaCegarLoop]: 174 mSDtfsCounter, 1276 mSDsluCounter, 582 mSDsCounter, 0 mSdLazyCounter, 1727 mSolverCounterSat, 485 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1291 SdHoareTripleChecker+Valid, 756 SdHoareTripleChecker+Invalid, 2212 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 485 IncrementalHoareTripleChecker+Valid, 1727 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-10-12 19:32:37,033 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1291 Valid, 756 Invalid, 2212 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [485 Valid, 1727 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-10-12 19:32:37,068 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53002 states. [2024-10-12 19:32:39,087 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53002 to 52818. [2024-10-12 19:32:39,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52818 states, 44251 states have (on average 1.617228989175386) internal successors, (71564), 44258 states have internal predecessors, (71564), 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) [2024-10-12 19:32:39,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52818 states to 52818 states and 89785 transitions. [2024-10-12 19:32:39,406 INFO L78 Accepts]: Start accepts. Automaton has 52818 states and 89785 transitions. Word has length 128 [2024-10-12 19:32:39,407 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 19:32:39,408 INFO L471 AbstractCegarLoop]: Abstraction has 52818 states and 89785 transitions. [2024-10-12 19:32:39,408 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.714285714285714) internal successors, (82), 3 states have internal predecessors, (82), 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) [2024-10-12 19:32:39,408 INFO L276 IsEmpty]: Start isEmpty. Operand 52818 states and 89785 transitions. [2024-10-12 19:32:39,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2024-10-12 19:32:39,458 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 19:32:39,458 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] [2024-10-12 19:32:39,458 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-10-12 19:32:39,459 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 19:32:39,459 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 19:32:39,459 INFO L85 PathProgramCache]: Analyzing trace with hash -1725710639, now seen corresponding path program 1 times [2024-10-12 19:32:39,459 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 19:32:39,459 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [937678854] [2024-10-12 19:32:39,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 19:32:39,460 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 19:32:39,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:32:39,538 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-12 19:32:39,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:32:39,549 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-12 19:32:39,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:32:39,552 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-12 19:32:39,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:32:39,554 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-12 19:32:39,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:32:39,556 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-12 19:32:39,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:32:39,558 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-12 19:32:39,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:32:39,567 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-10-12 19:32:39,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:32:39,577 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-10-12 19:32:39,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:32:39,579 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-10-12 19:32:39,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:32:39,580 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-10-12 19:32:39,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:32:39,582 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2024-10-12 19:32:39,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:32:39,584 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-10-12 19:32:39,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:32:39,586 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-10-12 19:32:39,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:32:39,587 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2024-10-12 19:32:39,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:32:39,589 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2024-10-12 19:32:39,589 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 19:32:39,589 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [937678854] [2024-10-12 19:32:39,590 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [937678854] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 19:32:39,590 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 19:32:39,590 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-12 19:32:39,590 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1316736637] [2024-10-12 19:32:39,590 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 19:32:39,591 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-12 19:32:39,591 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 19:32:39,591 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-12 19:32:39,591 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-12 19:32:39,592 INFO L87 Difference]: Start difference. First operand 52818 states and 89785 transitions. Second operand has 7 states, 7 states have (on average 11.857142857142858) internal successors, (83), 3 states have internal predecessors, (83), 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) [2024-10-12 19:32:43,249 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 19:32:43,249 INFO L93 Difference]: Finished difference Result 98679 states and 171416 transitions. [2024-10-12 19:32:43,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-12 19:32:43,250 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.857142857142858) internal successors, (83), 3 states have internal predecessors, (83), 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 129 [2024-10-12 19:32:43,250 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 19:32:43,647 INFO L225 Difference]: With dead ends: 98679 [2024-10-12 19:32:43,648 INFO L226 Difference]: Without dead ends: 98474 [2024-10-12 19:32:43,686 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 [2024-10-12 19:32:43,686 INFO L432 NwaCegarLoop]: 167 mSDtfsCounter, 1269 mSDsluCounter, 580 mSDsCounter, 0 mSdLazyCounter, 1698 mSolverCounterSat, 483 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1283 SdHoareTripleChecker+Valid, 747 SdHoareTripleChecker+Invalid, 2181 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 483 IncrementalHoareTripleChecker+Valid, 1698 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-10-12 19:32:43,686 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1283 Valid, 747 Invalid, 2181 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [483 Valid, 1698 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-10-12 19:32:43,756 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98474 states. [2024-10-12 19:32:46,897 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98474 to 98290. [2024-10-12 19:32:47,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 98290 states, 82924 states have (on average 1.6110293762963677) internal successors, (133593), 82931 states have internal predecessors, (133593), 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) [2024-10-12 19:32:47,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98290 states to 98290 states and 166458 transitions. [2024-10-12 19:32:47,665 INFO L78 Accepts]: Start accepts. Automaton has 98290 states and 166458 transitions. Word has length 129 [2024-10-12 19:32:47,666 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 19:32:47,666 INFO L471 AbstractCegarLoop]: Abstraction has 98290 states and 166458 transitions. [2024-10-12 19:32:47,666 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.857142857142858) internal successors, (83), 3 states have internal predecessors, (83), 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) [2024-10-12 19:32:47,666 INFO L276 IsEmpty]: Start isEmpty. Operand 98290 states and 166458 transitions. [2024-10-12 19:32:47,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2024-10-12 19:32:47,714 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 19:32:47,715 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] [2024-10-12 19:32:47,715 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-10-12 19:32:47,715 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 19:32:47,716 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 19:32:47,716 INFO L85 PathProgramCache]: Analyzing trace with hash 42955216, now seen corresponding path program 1 times [2024-10-12 19:32:47,716 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 19:32:47,717 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2081739006] [2024-10-12 19:32:47,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 19:32:47,717 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 19:32:47,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:32:47,974 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-12 19:32:47,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:32:47,986 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-12 19:32:47,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:32:47,990 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-12 19:32:47,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:32:47,992 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-12 19:32:47,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:32:47,995 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-12 19:32:47,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:32:47,998 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-12 19:32:48,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:32:48,014 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-10-12 19:32:48,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:32:48,030 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-10-12 19:32:48,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:32:48,055 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-12 19:32:48,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:32:48,057 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-12 19:32:48,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:32:48,081 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-12 19:32:48,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:32:48,116 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-10-12 19:32:48,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:32:48,119 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-10-12 19:32:48,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:32:48,120 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-10-12 19:32:48,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:32:48,123 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2024-10-12 19:32:48,123 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 19:32:48,123 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2081739006] [2024-10-12 19:32:48,123 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2081739006] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 19:32:48,123 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 19:32:48,123 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2024-10-12 19:32:48,123 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [957208607] [2024-10-12 19:32:48,123 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 19:32:48,124 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-10-12 19:32:48,124 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 19:32:48,124 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-10-12 19:32:48,124 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=273, Unknown=0, NotChecked=0, Total=306 [2024-10-12 19:32:48,125 INFO L87 Difference]: Start difference. First operand 98290 states and 166458 transitions. Second operand has 18 states, 16 states have (on average 5.25) internal successors, (84), 12 states have internal predecessors, (84), 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) [2024-10-12 19:32:59,927 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 19:32:59,927 INFO L93 Difference]: Finished difference Result 196840 states and 345292 transitions. [2024-10-12 19:32:59,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2024-10-12 19:32:59,928 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 16 states have (on average 5.25) internal successors, (84), 12 states have internal predecessors, (84), 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 130 [2024-10-12 19:32:59,928 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 19:33:01,078 INFO L225 Difference]: With dead ends: 196840 [2024-10-12 19:33:01,078 INFO L226 Difference]: Without dead ends: 196640 [2024-10-12 19:33:01,186 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 69 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1395 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=900, Invalid=4070, Unknown=0, NotChecked=0, Total=4970 [2024-10-12 19:33:01,188 INFO L432 NwaCegarLoop]: 215 mSDtfsCounter, 5450 mSDsluCounter, 2534 mSDsCounter, 0 mSdLazyCounter, 11359 mSolverCounterSat, 2249 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5450 SdHoareTripleChecker+Valid, 2749 SdHoareTripleChecker+Invalid, 13608 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2249 IncrementalHoareTripleChecker+Valid, 11359 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.3s IncrementalHoareTripleChecker+Time [2024-10-12 19:33:01,188 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5450 Valid, 2749 Invalid, 13608 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2249 Valid, 11359 Invalid, 0 Unknown, 0 Unchecked, 6.3s Time] [2024-10-12 19:33:01,331 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 196640 states.