./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_spec9_product22.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_spec9_product22.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 0fc665e3899dd29ca5bf696fac98a46e2d1733c214ee43bc57c8fd7a101d2539 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-mul-div-a046e57-m [2024-10-12 19:37:14,791 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-12 19:37:14,892 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-12 19:37:14,895 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-12 19:37:14,896 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-12 19:37:14,917 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-12 19:37:14,918 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-12 19:37:14,918 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-12 19:37:14,919 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-12 19:37:14,919 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-12 19:37:14,920 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-12 19:37:14,921 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-12 19:37:14,921 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-12 19:37:14,921 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-12 19:37:14,922 INFO L153 SettingsManager]: * Use SBE=true [2024-10-12 19:37:14,924 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-12 19:37:14,924 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-12 19:37:14,924 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-12 19:37:14,925 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-12 19:37:14,925 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-12 19:37:14,925 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-12 19:37:14,930 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-12 19:37:14,930 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-12 19:37:14,930 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-12 19:37:14,930 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-12 19:37:14,931 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-12 19:37:14,931 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-12 19:37:14,931 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-12 19:37:14,931 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-12 19:37:14,932 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-12 19:37:14,932 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-12 19:37:14,933 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-12 19:37:14,933 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-12 19:37:14,934 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-12 19:37:14,934 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-12 19:37:14,934 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-12 19:37:14,934 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-12 19:37:14,934 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-12 19:37:14,935 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-12 19:37:14,935 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-12 19:37:14,935 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-12 19:37:14,935 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-12 19:37:14,935 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0fc665e3899dd29ca5bf696fac98a46e2d1733c214ee43bc57c8fd7a101d2539 [2024-10-12 19:37:15,191 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-12 19:37:15,223 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-12 19:37:15,226 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-12 19:37:15,227 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-12 19:37:15,228 INFO L274 PluginConnector]: CDTParser initialized [2024-10-12 19:37:15,229 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/email_spec9_product22.cil.c [2024-10-12 19:37:16,691 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-12 19:37:17,039 INFO L384 CDTParser]: Found 1 translation units. [2024-10-12 19:37:17,041 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/email_spec9_product22.cil.c [2024-10-12 19:37:17,072 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9795d3220/370879fc7a4d43e28cd40f1456552402/FLAGe3f54b2b0 [2024-10-12 19:37:17,289 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9795d3220/370879fc7a4d43e28cd40f1456552402 [2024-10-12 19:37:17,291 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-12 19:37:17,293 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-12 19:37:17,296 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-12 19:37:17,296 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-12 19:37:17,303 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-12 19:37:17,306 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 07:37:17" (1/1) ... [2024-10-12 19:37:17,308 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@32034722 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:37:17, skipping insertion in model container [2024-10-12 19:37:17,308 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 07:37:17" (1/1) ... [2024-10-12 19:37:17,374 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-12 19:37:17,928 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_spec9_product22.cil.c[51984,51997] [2024-10-12 19:37:18,003 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-12 19:37:18,019 INFO L200 MainTranslator]: Completed pre-run [2024-10-12 19:37:18,028 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Email.i","") [48] [2024-10-12 19:37:18,030 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"ClientLib.i","") [172] [2024-10-12 19:37:18,031 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [1252] [2024-10-12 19:37:18,031 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"EmailLib.i","") [1481] [2024-10-12 19:37:18,031 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Client.i","") [1886] [2024-10-12 19:37:18,032 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [2191] [2024-10-12 19:37:18,032 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [2479] [2024-10-12 19:37:18,032 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [2488] [2024-10-12 19:37:18,033 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"EncryptForward_spec.i","") [2854] [2024-10-12 19:37:18,033 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Util.i","") [2896] [2024-10-12 19:37:18,034 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [2913] [2024-10-12 19:37:18,123 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_spec9_product22.cil.c[51984,51997] [2024-10-12 19:37:18,143 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-12 19:37:18,181 INFO L204 MainTranslator]: Completed translation [2024-10-12 19:37:18,182 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:37:18 WrapperNode [2024-10-12 19:37:18,183 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-12 19:37:18,184 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-12 19:37:18,184 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-12 19:37:18,184 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-12 19:37:18,191 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:37:18" (1/1) ... [2024-10-12 19:37:18,223 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:37:18" (1/1) ... [2024-10-12 19:37:18,282 INFO L138 Inliner]: procedures = 129, calls = 193, calls flagged for inlining = 60, calls inlined = 55, statements flattened = 1038 [2024-10-12 19:37:18,283 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-12 19:37:18,284 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-12 19:37:18,287 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-12 19:37:18,287 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-12 19:37:18,299 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:37:18" (1/1) ... [2024-10-12 19:37:18,300 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:37:18" (1/1) ... [2024-10-12 19:37:18,305 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:37:18" (1/1) ... [2024-10-12 19:37:18,340 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 19:37:18,343 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:37:18" (1/1) ... [2024-10-12 19:37:18,343 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:37:18" (1/1) ... [2024-10-12 19:37:18,368 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:37:18" (1/1) ... [2024-10-12 19:37:18,380 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:37:18" (1/1) ... [2024-10-12 19:37:18,387 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:37:18" (1/1) ... [2024-10-12 19:37:18,398 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:37:18" (1/1) ... [2024-10-12 19:37:18,405 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-12 19:37:18,406 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-12 19:37:18,407 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-12 19:37:18,407 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-12 19:37:18,408 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:37:18" (1/1) ... [2024-10-12 19:37:18,419 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-12 19:37:18,434 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 19:37:18,454 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 19:37:18,456 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 19:37:18,513 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2024-10-12 19:37:18,513 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2024-10-12 19:37:18,513 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2024-10-12 19:37:18,513 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2024-10-12 19:37:18,513 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2024-10-12 19:37:18,513 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2024-10-12 19:37:18,514 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2024-10-12 19:37:18,514 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2024-10-12 19:37:18,514 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2024-10-12 19:37:18,514 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2024-10-12 19:37:18,515 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2024-10-12 19:37:18,515 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2024-10-12 19:37:18,515 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2024-10-12 19:37:18,515 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2024-10-12 19:37:18,515 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2024-10-12 19:37:18,516 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2024-10-12 19:37:18,516 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2024-10-12 19:37:18,516 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2024-10-12 19:37:18,517 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2024-10-12 19:37:18,517 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2024-10-12 19:37:18,517 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-12 19:37:18,517 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2024-10-12 19:37:18,517 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2024-10-12 19:37:18,517 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2024-10-12 19:37:18,517 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2024-10-12 19:37:18,517 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2024-10-12 19:37:18,517 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2024-10-12 19:37:18,517 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2024-10-12 19:37:18,517 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2024-10-12 19:37:18,518 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2024-10-12 19:37:18,518 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2024-10-12 19:37:18,518 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2024-10-12 19:37:18,518 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2024-10-12 19:37:18,518 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2024-10-12 19:37:18,520 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2024-10-12 19:37:18,520 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-12 19:37:18,520 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-10-12 19:37:18,521 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-10-12 19:37:18,521 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-10-12 19:37:18,521 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2024-10-12 19:37:18,521 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2024-10-12 19:37:18,521 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-12 19:37:18,521 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-12 19:37:18,767 INFO L238 CfgBuilder]: Building ICFG [2024-10-12 19:37:18,771 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-12 19:37:19,735 INFO L? ?]: Removed 439 outVars from TransFormulas that were not future-live. [2024-10-12 19:37:19,735 INFO L287 CfgBuilder]: Performing block encoding [2024-10-12 19:37:19,806 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-12 19:37:19,806 INFO L314 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-12 19:37:19,806 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 07:37:19 BoogieIcfgContainer [2024-10-12 19:37:19,807 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-12 19:37:19,809 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-12 19:37:19,810 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-12 19:37:19,816 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-12 19:37:19,816 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.10 07:37:17" (1/3) ... [2024-10-12 19:37:19,816 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c7be6fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 07:37:19, skipping insertion in model container [2024-10-12 19:37:19,817 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:37:18" (2/3) ... [2024-10-12 19:37:19,817 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c7be6fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 07:37:19, skipping insertion in model container [2024-10-12 19:37:19,818 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 07:37:19" (3/3) ... [2024-10-12 19:37:19,820 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec9_product22.cil.c [2024-10-12 19:37:19,837 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-12 19:37:19,837 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-12 19:37:19,905 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-12 19:37:19,910 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;@1cc43deb, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-12 19:37:19,911 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-12 19:37:19,917 INFO L276 IsEmpty]: Start isEmpty. Operand has 294 states, 224 states have (on average 1.59375) internal successors, (357), 228 states have internal predecessors, (357), 50 states have call successors, (50), 18 states have call predecessors, (50), 18 states have return successors, (50), 50 states have call predecessors, (50), 50 states have call successors, (50) [2024-10-12 19:37:19,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2024-10-12 19:37:19,940 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 19:37:19,941 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 19:37:19,941 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 19:37:19,946 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 19:37:19,946 INFO L85 PathProgramCache]: Analyzing trace with hash -1742368229, now seen corresponding path program 1 times [2024-10-12 19:37:19,952 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 19:37:19,953 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1274298572] [2024-10-12 19:37:19,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 19:37:19,953 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 19:37:20,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:37:20,595 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-12 19:37:20,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:37:20,621 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-12 19:37:20,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:37:20,629 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-12 19:37:20,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:37:20,669 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-12 19:37:20,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:37:20,675 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-12 19:37:20,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:37:20,681 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-12 19:37:20,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:37:20,703 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-10-12 19:37:20,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:37:20,726 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-10-12 19:37:20,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:37:20,733 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-10-12 19:37:20,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:37:20,741 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-12 19:37:20,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:37:20,746 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-10-12 19:37:20,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:37:20,758 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-10-12 19:37:20,758 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 19:37:20,758 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1274298572] [2024-10-12 19:37:20,759 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1274298572] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-12 19:37:20,760 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2071581226] [2024-10-12 19:37:20,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 19:37:20,761 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-12 19:37:20,761 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 19:37:20,763 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 19:37:20,765 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 19:37:21,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:37:21,076 INFO L255 TraceCheckSpWp]: Trace formula consists of 903 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-10-12 19:37:21,085 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-12 19:37:21,104 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-10-12 19:37:21,104 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-12 19:37:21,105 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2071581226] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 19:37:21,105 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-12 19:37:21,105 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [9] total 9 [2024-10-12 19:37:21,107 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1437002522] [2024-10-12 19:37:21,109 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 19:37:21,117 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-12 19:37:21,117 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 19:37:21,145 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-12 19:37:21,146 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-10-12 19:37:21,150 INFO L87 Difference]: Start difference. First operand has 294 states, 224 states have (on average 1.59375) internal successors, (357), 228 states have internal predecessors, (357), 50 states have call successors, (50), 18 states have call predecessors, (50), 18 states have return successors, (50), 50 states have call predecessors, (50), 50 states have call successors, (50) Second operand has 2 states, 2 states have (on average 22.0) internal successors, (44), 2 states have internal predecessors, (44), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-10-12 19:37:21,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 19:37:21,260 INFO L93 Difference]: Finished difference Result 439 states and 670 transitions. [2024-10-12 19:37:21,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-12 19:37:21,262 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 22.0) internal successors, (44), 2 states have internal predecessors, (44), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 83 [2024-10-12 19:37:21,263 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 19:37:21,275 INFO L225 Difference]: With dead ends: 439 [2024-10-12 19:37:21,275 INFO L226 Difference]: Without dead ends: 291 [2024-10-12 19:37:21,285 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 101 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 19:37:21,292 INFO L432 NwaCegarLoop]: 436 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 436 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-12 19:37:21,293 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 436 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-12 19:37:21,312 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 291 states. [2024-10-12 19:37:21,355 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 291 to 291. [2024-10-12 19:37:21,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 291 states, 222 states have (on average 1.5765765765765767) internal successors, (350), 225 states have internal predecessors, (350), 50 states have call successors, (50), 18 states have call predecessors, (50), 18 states have return successors, (49), 49 states have call predecessors, (49), 49 states have call successors, (49) [2024-10-12 19:37:21,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 291 states to 291 states and 449 transitions. [2024-10-12 19:37:21,363 INFO L78 Accepts]: Start accepts. Automaton has 291 states and 449 transitions. Word has length 83 [2024-10-12 19:37:21,368 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 19:37:21,369 INFO L471 AbstractCegarLoop]: Abstraction has 291 states and 449 transitions. [2024-10-12 19:37:21,369 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 22.0) internal successors, (44), 2 states have internal predecessors, (44), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-10-12 19:37:21,369 INFO L276 IsEmpty]: Start isEmpty. Operand 291 states and 449 transitions. [2024-10-12 19:37:21,374 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-10-12 19:37:21,374 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 19:37:21,374 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 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] [2024-10-12 19:37:21,394 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 19:37:21,575 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 19:37:21,576 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 19:37:21,576 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 19:37:21,576 INFO L85 PathProgramCache]: Analyzing trace with hash -798874986, now seen corresponding path program 1 times [2024-10-12 19:37:21,577 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 19:37:21,577 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [310496335] [2024-10-12 19:37:21,577 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 19:37:21,577 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 19:37:21,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:37:21,795 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-12 19:37:21,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:37:21,807 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-12 19:37:21,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:37:21,811 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-12 19:37:21,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:37:21,834 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-12 19:37:21,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:37:21,840 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-12 19:37:21,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:37:21,846 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-12 19:37:21,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:37:21,865 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-10-12 19:37:21,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:37:21,880 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-10-12 19:37:21,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:37:21,883 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-12 19:37:21,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:37:21,886 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-10-12 19:37:21,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:37:21,889 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-10-12 19:37:21,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:37:21,893 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-10-12 19:37:21,893 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 19:37:21,893 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [310496335] [2024-10-12 19:37:21,894 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [310496335] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-12 19:37:21,894 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [449908813] [2024-10-12 19:37:21,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 19:37:21,894 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-12 19:37:21,897 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 19:37:21,900 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 19:37:21,902 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 19:37:22,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:37:22,179 INFO L255 TraceCheckSpWp]: Trace formula consists of 904 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-12 19:37:22,184 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-12 19:37:22,227 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-10-12 19:37:22,228 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-12 19:37:22,228 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [449908813] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 19:37:22,228 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-12 19:37:22,228 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2024-10-12 19:37:22,228 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1168665024] [2024-10-12 19:37:22,228 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 19:37:22,229 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-12 19:37:22,230 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 19:37:22,230 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-12 19:37:22,232 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-10-12 19:37:22,232 INFO L87 Difference]: Start difference. First operand 291 states and 449 transitions. Second operand has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-10-12 19:37:22,297 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 19:37:22,297 INFO L93 Difference]: Finished difference Result 435 states and 657 transitions. [2024-10-12 19:37:22,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-12 19:37:22,298 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 84 [2024-10-12 19:37:22,298 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 19:37:22,302 INFO L225 Difference]: With dead ends: 435 [2024-10-12 19:37:22,302 INFO L226 Difference]: Without dead ends: 293 [2024-10-12 19:37:22,304 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 101 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 19:37:22,305 INFO L432 NwaCegarLoop]: 433 mSDtfsCounter, 0 mSDsluCounter, 432 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 865 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-12 19:37:22,306 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 865 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-12 19:37:22,307 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 293 states. [2024-10-12 19:37:22,341 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 293 to 293. [2024-10-12 19:37:22,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 293 states, 224 states have (on average 1.5714285714285714) internal successors, (352), 227 states have internal predecessors, (352), 50 states have call successors, (50), 18 states have call predecessors, (50), 18 states have return successors, (49), 49 states have call predecessors, (49), 49 states have call successors, (49) [2024-10-12 19:37:22,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 293 states to 293 states and 451 transitions. [2024-10-12 19:37:22,344 INFO L78 Accepts]: Start accepts. Automaton has 293 states and 451 transitions. Word has length 84 [2024-10-12 19:37:22,345 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 19:37:22,345 INFO L471 AbstractCegarLoop]: Abstraction has 293 states and 451 transitions. [2024-10-12 19:37:22,345 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-10-12 19:37:22,345 INFO L276 IsEmpty]: Start isEmpty. Operand 293 states and 451 transitions. [2024-10-12 19:37:22,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2024-10-12 19:37:22,348 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 19:37:22,348 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 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] [2024-10-12 19:37:22,366 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 19:37:22,549 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 19:37:22,550 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 19:37:22,550 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 19:37:22,550 INFO L85 PathProgramCache]: Analyzing trace with hash 1212547385, now seen corresponding path program 1 times [2024-10-12 19:37:22,550 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 19:37:22,550 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1919522102] [2024-10-12 19:37:22,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 19:37:22,551 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 19:37:22,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:37:22,733 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-12 19:37:22,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:37:22,745 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-12 19:37:22,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:37:22,753 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-12 19:37:22,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:37:22,780 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-12 19:37:22,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:37:22,786 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-12 19:37:22,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:37:22,791 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-12 19:37:22,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:37:22,806 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-12 19:37:22,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:37:22,821 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-10-12 19:37:22,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:37:22,825 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-10-12 19:37:22,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:37:22,828 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-10-12 19:37:22,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:37:22,831 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-10-12 19:37:22,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:37:22,837 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-10-12 19:37:22,838 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 19:37:22,838 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1919522102] [2024-10-12 19:37:22,838 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1919522102] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-12 19:37:22,838 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [824937987] [2024-10-12 19:37:22,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 19:37:22,840 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-12 19:37:22,840 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 19:37:22,844 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 19:37:22,846 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 19:37:23,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:37:23,122 INFO L255 TraceCheckSpWp]: Trace formula consists of 928 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-12 19:37:23,130 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-12 19:37:23,157 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-10-12 19:37:23,158 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-12 19:37:23,159 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [824937987] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 19:37:23,159 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-12 19:37:23,162 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2024-10-12 19:37:23,162 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [9211817] [2024-10-12 19:37:23,162 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 19:37:23,163 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-12 19:37:23,164 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 19:37:23,165 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-12 19:37:23,165 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-10-12 19:37:23,165 INFO L87 Difference]: Start difference. First operand 293 states and 451 transitions. Second operand has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-10-12 19:37:23,242 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 19:37:23,243 INFO L93 Difference]: Finished difference Result 620 states and 968 transitions. [2024-10-12 19:37:23,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-12 19:37:23,244 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 91 [2024-10-12 19:37:23,245 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 19:37:23,251 INFO L225 Difference]: With dead ends: 620 [2024-10-12 19:37:23,251 INFO L226 Difference]: Without dead ends: 349 [2024-10-12 19:37:23,255 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 108 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 19:37:23,256 INFO L432 NwaCegarLoop]: 448 mSDtfsCounter, 109 mSDsluCounter, 391 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 124 SdHoareTripleChecker+Valid, 839 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-12 19:37:23,256 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [124 Valid, 839 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-12 19:37:23,261 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 349 states. [2024-10-12 19:37:23,297 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 349 to 344. [2024-10-12 19:37:23,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 344 states, 264 states have (on average 1.5871212121212122) internal successors, (419), 267 states have internal predecessors, (419), 61 states have call successors, (61), 18 states have call predecessors, (61), 18 states have return successors, (60), 60 states have call predecessors, (60), 60 states have call successors, (60) [2024-10-12 19:37:23,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 344 states to 344 states and 540 transitions. [2024-10-12 19:37:23,302 INFO L78 Accepts]: Start accepts. Automaton has 344 states and 540 transitions. Word has length 91 [2024-10-12 19:37:23,303 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 19:37:23,303 INFO L471 AbstractCegarLoop]: Abstraction has 344 states and 540 transitions. [2024-10-12 19:37:23,303 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-10-12 19:37:23,303 INFO L276 IsEmpty]: Start isEmpty. Operand 344 states and 540 transitions. [2024-10-12 19:37:23,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2024-10-12 19:37:23,306 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 19:37:23,306 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 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] [2024-10-12 19:37:23,325 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 19:37:23,507 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 19:37:23,508 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 19:37:23,508 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 19:37:23,508 INFO L85 PathProgramCache]: Analyzing trace with hash -2027376248, now seen corresponding path program 1 times [2024-10-12 19:37:23,508 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 19:37:23,509 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1105196359] [2024-10-12 19:37:23,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 19:37:23,509 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 19:37:23,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:37:23,670 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-12 19:37:23,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:37:23,682 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-12 19:37:23,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:37:23,687 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-12 19:37:23,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:37:23,714 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-12 19:37:23,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:37:23,718 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-12 19:37:23,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:37:23,723 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-12 19:37:23,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:37:23,739 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-12 19:37:23,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:37:23,754 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-12 19:37:23,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:37:23,757 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-10-12 19:37:23,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:37:23,762 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-10-12 19:37:23,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:37:23,767 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-12 19:37:23,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:37:23,771 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-10-12 19:37:23,772 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 19:37:23,772 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1105196359] [2024-10-12 19:37:23,772 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1105196359] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-12 19:37:23,772 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1248891338] [2024-10-12 19:37:23,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 19:37:23,774 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-12 19:37:23,774 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 19:37:23,776 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 19:37:23,778 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 19:37:24,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:37:24,058 INFO L255 TraceCheckSpWp]: Trace formula consists of 933 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-10-12 19:37:24,064 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-12 19:37:24,138 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-10-12 19:37:24,140 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-12 19:37:24,141 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1248891338] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 19:37:24,141 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-12 19:37:24,141 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 12 [2024-10-12 19:37:24,141 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1506743468] [2024-10-12 19:37:24,141 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 19:37:24,142 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-12 19:37:24,142 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 19:37:24,143 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-12 19:37:24,143 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2024-10-12 19:37:24,143 INFO L87 Difference]: Start difference. First operand 344 states and 540 transitions. Second operand has 5 states, 4 states have (on average 15.25) internal successors, (61), 5 states have internal predecessors, (61), 3 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (11), 2 states have call predecessors, (11), 3 states have call successors, (11) [2024-10-12 19:37:24,266 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 19:37:24,266 INFO L93 Difference]: Finished difference Result 683 states and 1074 transitions. [2024-10-12 19:37:24,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-12 19:37:24,267 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 15.25) internal successors, (61), 5 states have internal predecessors, (61), 3 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (11), 2 states have call predecessors, (11), 3 states have call successors, (11) Word has length 92 [2024-10-12 19:37:24,267 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 19:37:24,270 INFO L225 Difference]: With dead ends: 683 [2024-10-12 19:37:24,270 INFO L226 Difference]: Without dead ends: 346 [2024-10-12 19:37:24,274 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 117 GetRequests, 107 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 19:37:24,276 INFO L432 NwaCegarLoop]: 425 mSDtfsCounter, 2 mSDsluCounter, 1264 mSDsCounter, 0 mSdLazyCounter, 101 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 1689 SdHoareTripleChecker+Invalid, 101 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 101 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-12 19:37:24,277 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 1689 Invalid, 101 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 101 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-12 19:37:24,280 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 346 states. [2024-10-12 19:37:24,295 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 346 to 346. [2024-10-12 19:37:24,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 346 states, 265 states have (on average 1.5849056603773586) internal successors, (420), 269 states have internal predecessors, (420), 61 states have call successors, (61), 18 states have call predecessors, (61), 19 states have return successors, (62), 60 states have call predecessors, (62), 60 states have call successors, (62) [2024-10-12 19:37:24,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 346 states to 346 states and 543 transitions. [2024-10-12 19:37:24,299 INFO L78 Accepts]: Start accepts. Automaton has 346 states and 543 transitions. Word has length 92 [2024-10-12 19:37:24,299 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 19:37:24,300 INFO L471 AbstractCegarLoop]: Abstraction has 346 states and 543 transitions. [2024-10-12 19:37:24,300 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 15.25) internal successors, (61), 5 states have internal predecessors, (61), 3 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (11), 2 states have call predecessors, (11), 3 states have call successors, (11) [2024-10-12 19:37:24,300 INFO L276 IsEmpty]: Start isEmpty. Operand 346 states and 543 transitions. [2024-10-12 19:37:24,302 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2024-10-12 19:37:24,302 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 19:37:24,302 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 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] [2024-10-12 19:37:24,322 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 19:37:24,506 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 19:37:24,507 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 19:37:24,507 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 19:37:24,507 INFO L85 PathProgramCache]: Analyzing trace with hash 1826158118, now seen corresponding path program 1 times [2024-10-12 19:37:24,507 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 19:37:24,507 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1630852894] [2024-10-12 19:37:24,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 19:37:24,508 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 19:37:24,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:37:24,653 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-12 19:37:24,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:37:24,666 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-12 19:37:24,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:37:24,669 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-12 19:37:24,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:37:24,700 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-12 19:37:24,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:37:24,723 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-10-12 19:37:24,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:37:24,727 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-10-12 19:37:24,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:37:24,741 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-10-12 19:37:24,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:37:24,757 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-12 19:37:24,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:37:24,759 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-10-12 19:37:24,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:37:24,763 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-10-12 19:37:24,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:37:24,765 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-10-12 19:37:24,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:37:24,768 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-10-12 19:37:24,769 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 19:37:24,769 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1630852894] [2024-10-12 19:37:24,769 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1630852894] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-12 19:37:24,769 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [229577204] [2024-10-12 19:37:24,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 19:37:24,769 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-12 19:37:24,770 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 19:37:24,771 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 19:37:24,774 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 19:37:25,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:37:25,038 INFO L255 TraceCheckSpWp]: Trace formula consists of 934 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-10-12 19:37:25,042 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-12 19:37:25,102 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-10-12 19:37:25,103 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-12 19:37:25,103 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [229577204] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 19:37:25,103 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-12 19:37:25,103 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [12] total 15 [2024-10-12 19:37:25,103 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [712878972] [2024-10-12 19:37:25,103 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 19:37:25,104 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-12 19:37:25,104 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 19:37:25,104 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-12 19:37:25,105 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=180, Unknown=0, NotChecked=0, Total=210 [2024-10-12 19:37:25,105 INFO L87 Difference]: Start difference. First operand 346 states and 543 transitions. Second operand has 5 states, 5 states have (on average 12.6) internal successors, (63), 5 states have internal predecessors, (63), 3 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2024-10-12 19:37:25,233 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 19:37:25,233 INFO L93 Difference]: Finished difference Result 685 states and 1079 transitions. [2024-10-12 19:37:25,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-12 19:37:25,234 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 5 states have internal predecessors, (63), 3 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 93 [2024-10-12 19:37:25,234 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 19:37:25,237 INFO L225 Difference]: With dead ends: 685 [2024-10-12 19:37:25,238 INFO L226 Difference]: Without dead ends: 348 [2024-10-12 19:37:25,240 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 107 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 19:37:25,241 INFO L432 NwaCegarLoop]: 423 mSDtfsCounter, 2 mSDsluCounter, 1252 mSDsCounter, 0 mSdLazyCounter, 113 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 1675 SdHoareTripleChecker+Invalid, 113 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 113 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-12 19:37:25,242 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 1675 Invalid, 113 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 113 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-12 19:37:25,244 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 348 states. [2024-10-12 19:37:25,259 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 348 to 348. [2024-10-12 19:37:25,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 348 states, 266 states have (on average 1.5827067669172932) internal successors, (421), 271 states have internal predecessors, (421), 61 states have call successors, (61), 18 states have call predecessors, (61), 20 states have return successors, (67), 60 states have call predecessors, (67), 60 states have call successors, (67) [2024-10-12 19:37:25,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 348 states to 348 states and 549 transitions. [2024-10-12 19:37:25,263 INFO L78 Accepts]: Start accepts. Automaton has 348 states and 549 transitions. Word has length 93 [2024-10-12 19:37:25,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 19:37:25,264 INFO L471 AbstractCegarLoop]: Abstraction has 348 states and 549 transitions. [2024-10-12 19:37:25,264 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 5 states have internal predecessors, (63), 3 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2024-10-12 19:37:25,264 INFO L276 IsEmpty]: Start isEmpty. Operand 348 states and 549 transitions. [2024-10-12 19:37:25,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-10-12 19:37:25,266 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 19:37:25,266 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-10-12 19:37:25,287 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 19:37:25,466 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 19:37:25,468 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 19:37:25,468 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 19:37:25,468 INFO L85 PathProgramCache]: Analyzing trace with hash -716031384, now seen corresponding path program 1 times [2024-10-12 19:37:25,468 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 19:37:25,469 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [837529698] [2024-10-12 19:37:25,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 19:37:25,469 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 19:37:25,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:37:25,591 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-12 19:37:25,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:37:25,602 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-12 19:37:25,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:37:25,607 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-12 19:37:25,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:37:25,610 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-12 19:37:25,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:37:25,613 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-12 19:37:25,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:37:25,664 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-10-12 19:37:25,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:37:25,677 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-10-12 19:37:25,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:37:25,696 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-10-12 19:37:25,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:37:25,699 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-10-12 19:37:25,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:37:25,701 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-10-12 19:37:25,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:37:25,702 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-12 19:37:25,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:37:25,706 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-10-12 19:37:25,706 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 19:37:25,706 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [837529698] [2024-10-12 19:37:25,707 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [837529698] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 19:37:25,707 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 19:37:25,707 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-10-12 19:37:25,707 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [631128832] [2024-10-12 19:37:25,707 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 19:37:25,708 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-12 19:37:25,708 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 19:37:25,708 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-12 19:37:25,709 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-10-12 19:37:25,709 INFO L87 Difference]: Start difference. First operand 348 states and 549 transitions. Second operand has 9 states, 8 states have (on average 7.375) internal successors, (59), 5 states have internal predecessors, (59), 3 states have call successors, (13), 6 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 3 states have call successors, (11) [2024-10-12 19:37:27,860 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 19:37:27,860 INFO L93 Difference]: Finished difference Result 824 states and 1315 transitions. [2024-10-12 19:37:27,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-10-12 19:37:27,861 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 7.375) internal successors, (59), 5 states have internal predecessors, (59), 3 states have call successors, (13), 6 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 3 states have call successors, (11) Word has length 94 [2024-10-12 19:37:27,861 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 19:37:27,865 INFO L225 Difference]: With dead ends: 824 [2024-10-12 19:37:27,865 INFO L226 Difference]: Without dead ends: 495 [2024-10-12 19:37:27,867 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 25 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 19:37:27,867 INFO L432 NwaCegarLoop]: 167 mSDtfsCounter, 944 mSDsluCounter, 849 mSDsCounter, 0 mSdLazyCounter, 2431 mSolverCounterSat, 317 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 945 SdHoareTripleChecker+Valid, 1016 SdHoareTripleChecker+Invalid, 2748 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 317 IncrementalHoareTripleChecker+Valid, 2431 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-10-12 19:37:27,868 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [945 Valid, 1016 Invalid, 2748 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [317 Valid, 2431 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-10-12 19:37:27,869 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 495 states. [2024-10-12 19:37:27,900 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 495 to 348. [2024-10-12 19:37:27,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 348 states, 266 states have (on average 1.5827067669172932) internal successors, (421), 271 states have internal predecessors, (421), 61 states have call successors, (61), 18 states have call predecessors, (61), 20 states have return successors, (66), 60 states have call predecessors, (66), 60 states have call successors, (66) [2024-10-12 19:37:27,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 348 states to 348 states and 548 transitions. [2024-10-12 19:37:27,905 INFO L78 Accepts]: Start accepts. Automaton has 348 states and 548 transitions. Word has length 94 [2024-10-12 19:37:27,907 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 19:37:27,907 INFO L471 AbstractCegarLoop]: Abstraction has 348 states and 548 transitions. [2024-10-12 19:37:27,907 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 7.375) internal successors, (59), 5 states have internal predecessors, (59), 3 states have call successors, (13), 6 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 3 states have call successors, (11) [2024-10-12 19:37:27,907 INFO L276 IsEmpty]: Start isEmpty. Operand 348 states and 548 transitions. [2024-10-12 19:37:27,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-10-12 19:37:27,911 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 19:37:27,911 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-10-12 19:37:27,912 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-12 19:37:27,912 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 19:37:27,912 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 19:37:27,912 INFO L85 PathProgramCache]: Analyzing trace with hash -1770182680, now seen corresponding path program 2 times [2024-10-12 19:37:27,913 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 19:37:27,913 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [457579971] [2024-10-12 19:37:27,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 19:37:27,913 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 19:37:27,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:37:28,035 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-12 19:37:28,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:37:28,048 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-12 19:37:28,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:37:28,057 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-12 19:37:28,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:37:28,060 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-12 19:37:28,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:37:28,063 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-12 19:37:28,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:37:28,122 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-12 19:37:28,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:37:28,136 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-10-12 19:37:28,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:37:28,148 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-10-12 19:37:28,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:37:28,150 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-10-12 19:37:28,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:37:28,155 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-12 19:37:28,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:37:28,159 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-10-12 19:37:28,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:37:28,163 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-10-12 19:37:28,164 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 19:37:28,164 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [457579971] [2024-10-12 19:37:28,164 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [457579971] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 19:37:28,164 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 19:37:28,165 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-10-12 19:37:28,165 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1217949882] [2024-10-12 19:37:28,165 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 19:37:28,166 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-12 19:37:28,166 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 19:37:28,167 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-12 19:37:28,167 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-10-12 19:37:28,167 INFO L87 Difference]: Start difference. First operand 348 states and 548 transitions. Second operand has 9 states, 8 states have (on average 7.5) internal successors, (60), 5 states have internal predecessors, (60), 3 states have call successors, (13), 6 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 3 states have call successors, (11) [2024-10-12 19:37:30,246 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 19:37:30,247 INFO L93 Difference]: Finished difference Result 826 states and 1318 transitions. [2024-10-12 19:37:30,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-10-12 19:37:30,247 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 7.5) internal successors, (60), 5 states have internal predecessors, (60), 3 states have call successors, (13), 6 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 3 states have call successors, (11) Word has length 95 [2024-10-12 19:37:30,247 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 19:37:30,251 INFO L225 Difference]: With dead ends: 826 [2024-10-12 19:37:30,251 INFO L226 Difference]: Without dead ends: 497 [2024-10-12 19:37:30,252 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 25 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 19:37:30,253 INFO L432 NwaCegarLoop]: 166 mSDtfsCounter, 940 mSDsluCounter, 849 mSDsCounter, 0 mSdLazyCounter, 2437 mSolverCounterSat, 317 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 942 SdHoareTripleChecker+Valid, 1015 SdHoareTripleChecker+Invalid, 2754 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 317 IncrementalHoareTripleChecker+Valid, 2437 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-10-12 19:37:30,253 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [942 Valid, 1015 Invalid, 2754 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [317 Valid, 2437 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-10-12 19:37:30,254 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 497 states. [2024-10-12 19:37:30,285 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 497 to 350. [2024-10-12 19:37:30,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 350 states, 267 states have (on average 1.5805243445692885) internal successors, (422), 273 states have internal predecessors, (422), 61 states have call successors, (61), 18 states have call predecessors, (61), 21 states have return successors, (68), 60 states have call predecessors, (68), 60 states have call successors, (68) [2024-10-12 19:37:30,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 350 states to 350 states and 551 transitions. [2024-10-12 19:37:30,289 INFO L78 Accepts]: Start accepts. Automaton has 350 states and 551 transitions. Word has length 95 [2024-10-12 19:37:30,290 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 19:37:30,290 INFO L471 AbstractCegarLoop]: Abstraction has 350 states and 551 transitions. [2024-10-12 19:37:30,290 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 7.5) internal successors, (60), 5 states have internal predecessors, (60), 3 states have call successors, (13), 6 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 3 states have call successors, (11) [2024-10-12 19:37:30,290 INFO L276 IsEmpty]: Start isEmpty. Operand 350 states and 551 transitions. [2024-10-12 19:37:30,292 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2024-10-12 19:37:30,292 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 19:37:30,292 INFO L215 NwaCegarLoop]: trace histogram [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 19:37:30,293 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-12 19:37:30,293 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 19:37:30,293 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 19:37:30,293 INFO L85 PathProgramCache]: Analyzing trace with hash 1867974017, now seen corresponding path program 1 times [2024-10-12 19:37:30,293 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 19:37:30,294 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1269854143] [2024-10-12 19:37:30,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 19:37:30,294 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 19:37:30,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:37:30,403 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-12 19:37:30,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:37:30,415 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-12 19:37:30,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:37:30,418 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-12 19:37:30,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:37:30,421 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-12 19:37:30,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:37:30,424 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-12 19:37:30,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:37:30,444 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-12 19:37:30,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:37:30,457 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-10-12 19:37:30,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:37:30,469 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-10-12 19:37:30,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:37:30,476 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-12 19:37:30,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:37:30,478 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-10-12 19:37:30,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:37:30,485 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-10-12 19:37:30,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:37:30,489 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-10-12 19:37:30,489 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 19:37:30,490 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1269854143] [2024-10-12 19:37:30,490 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1269854143] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 19:37:30,490 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 19:37:30,490 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-10-12 19:37:30,491 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1717648525] [2024-10-12 19:37:30,491 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 19:37:30,491 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-12 19:37:30,491 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 19:37:30,492 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-12 19:37:30,492 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-10-12 19:37:30,492 INFO L87 Difference]: Start difference. First operand 350 states and 551 transitions. Second operand has 9 states, 8 states have (on average 7.625) internal successors, (61), 5 states have internal predecessors, (61), 3 states have call successors, (13), 6 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 3 states have call successors, (11) [2024-10-12 19:37:32,503 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 19:37:32,503 INFO L93 Difference]: Finished difference Result 826 states and 1317 transitions. [2024-10-12 19:37:32,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-10-12 19:37:32,504 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 7.625) internal successors, (61), 5 states have internal predecessors, (61), 3 states have call successors, (13), 6 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 3 states have call successors, (11) Word has length 96 [2024-10-12 19:37:32,505 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 19:37:32,510 INFO L225 Difference]: With dead ends: 826 [2024-10-12 19:37:32,511 INFO L226 Difference]: Without dead ends: 497 [2024-10-12 19:37:32,513 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2024-10-12 19:37:32,514 INFO L432 NwaCegarLoop]: 163 mSDtfsCounter, 942 mSDsluCounter, 849 mSDsCounter, 0 mSdLazyCounter, 2435 mSolverCounterSat, 319 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 943 SdHoareTripleChecker+Valid, 1012 SdHoareTripleChecker+Invalid, 2754 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 319 IncrementalHoareTripleChecker+Valid, 2435 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-10-12 19:37:32,514 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [943 Valid, 1012 Invalid, 2754 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [319 Valid, 2435 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-10-12 19:37:32,515 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 497 states. [2024-10-12 19:37:32,540 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 497 to 350. [2024-10-12 19:37:32,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 350 states, 267 states have (on average 1.5805243445692885) internal successors, (422), 273 states have internal predecessors, (422), 61 states have call successors, (61), 18 states have call predecessors, (61), 21 states have return successors, (68), 60 states have call predecessors, (68), 60 states have call successors, (68) [2024-10-12 19:37:32,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 350 states to 350 states and 551 transitions. [2024-10-12 19:37:32,544 INFO L78 Accepts]: Start accepts. Automaton has 350 states and 551 transitions. Word has length 96 [2024-10-12 19:37:32,544 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 19:37:32,544 INFO L471 AbstractCegarLoop]: Abstraction has 350 states and 551 transitions. [2024-10-12 19:37:32,544 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 7.625) internal successors, (61), 5 states have internal predecessors, (61), 3 states have call successors, (13), 6 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 3 states have call successors, (11) [2024-10-12 19:37:32,545 INFO L276 IsEmpty]: Start isEmpty. Operand 350 states and 551 transitions. [2024-10-12 19:37:32,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2024-10-12 19:37:32,546 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 19:37:32,547 INFO L215 NwaCegarLoop]: trace histogram [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 19:37:32,547 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-12 19:37:32,547 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 19:37:32,547 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 19:37:32,548 INFO L85 PathProgramCache]: Analyzing trace with hash 1922366915, now seen corresponding path program 1 times [2024-10-12 19:37:32,548 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 19:37:32,548 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [821778501] [2024-10-12 19:37:32,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 19:37:32,548 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 19:37:32,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:37:32,673 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-12 19:37:32,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:37:32,684 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-12 19:37:32,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:37:32,688 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-12 19:37:32,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:37:32,691 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-12 19:37:32,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:37:32,694 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-12 19:37:32,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:37:32,718 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-12 19:37:32,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:37:32,754 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-10-12 19:37:32,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:37:32,770 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-10-12 19:37:32,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:37:32,773 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-12 19:37:32,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:37:32,775 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-10-12 19:37:32,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:37:32,777 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-10-12 19:37:32,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:37:32,780 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-10-12 19:37:32,780 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 19:37:32,780 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [821778501] [2024-10-12 19:37:32,780 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [821778501] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 19:37:32,781 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 19:37:32,781 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-10-12 19:37:32,781 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1018464181] [2024-10-12 19:37:32,781 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 19:37:32,781 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-10-12 19:37:32,781 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 19:37:32,782 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-10-12 19:37:32,782 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2024-10-12 19:37:32,783 INFO L87 Difference]: Start difference. First operand 350 states and 551 transitions. Second operand has 12 states, 11 states have (on average 5.818181818181818) internal successors, (64), 8 states have internal predecessors, (64), 4 states have call successors, (13), 6 states have call predecessors, (13), 3 states have return successors, (11), 3 states have call predecessors, (11), 4 states have call successors, (11) [2024-10-12 19:37:35,459 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 19:37:35,460 INFO L93 Difference]: Finished difference Result 824 states and 1312 transitions. [2024-10-12 19:37:35,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-12 19:37:35,461 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 5.818181818181818) internal successors, (64), 8 states have internal predecessors, (64), 4 states have call successors, (13), 6 states have call predecessors, (13), 3 states have return successors, (11), 3 states have call predecessors, (11), 4 states have call successors, (11) Word has length 96 [2024-10-12 19:37:35,461 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 19:37:35,465 INFO L225 Difference]: With dead ends: 824 [2024-10-12 19:37:35,465 INFO L226 Difference]: Without dead ends: 497 [2024-10-12 19:37:35,467 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 25 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 19:37:35,468 INFO L432 NwaCegarLoop]: 164 mSDtfsCounter, 944 mSDsluCounter, 1244 mSDsCounter, 0 mSdLazyCounter, 3999 mSolverCounterSat, 322 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 945 SdHoareTripleChecker+Valid, 1408 SdHoareTripleChecker+Invalid, 4321 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 322 IncrementalHoareTripleChecker+Valid, 3999 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2024-10-12 19:37:35,468 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [945 Valid, 1408 Invalid, 4321 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [322 Valid, 3999 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2024-10-12 19:37:35,469 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 497 states. [2024-10-12 19:37:35,493 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 497 to 350. [2024-10-12 19:37:35,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 350 states, 267 states have (on average 1.5805243445692885) internal successors, (422), 273 states have internal predecessors, (422), 61 states have call successors, (61), 18 states have call predecessors, (61), 21 states have return successors, (67), 60 states have call predecessors, (67), 60 states have call successors, (67) [2024-10-12 19:37:35,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 350 states to 350 states and 550 transitions. [2024-10-12 19:37:35,497 INFO L78 Accepts]: Start accepts. Automaton has 350 states and 550 transitions. Word has length 96 [2024-10-12 19:37:35,497 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 19:37:35,497 INFO L471 AbstractCegarLoop]: Abstraction has 350 states and 550 transitions. [2024-10-12 19:37:35,497 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 5.818181818181818) internal successors, (64), 8 states have internal predecessors, (64), 4 states have call successors, (13), 6 states have call predecessors, (13), 3 states have return successors, (11), 3 states have call predecessors, (11), 4 states have call successors, (11) [2024-10-12 19:37:35,498 INFO L276 IsEmpty]: Start isEmpty. Operand 350 states and 550 transitions. [2024-10-12 19:37:35,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2024-10-12 19:37:35,501 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 19:37:35,501 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-10-12 19:37:35,502 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-12 19:37:35,502 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 19:37:35,502 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 19:37:35,502 INFO L85 PathProgramCache]: Analyzing trace with hash 2120414929, now seen corresponding path program 2 times [2024-10-12 19:37:35,502 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 19:37:35,503 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [145347548] [2024-10-12 19:37:35,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 19:37:35,503 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 19:37:35,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:37:35,632 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-12 19:37:35,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:37:35,645 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-12 19:37:35,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:37:35,663 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-12 19:37:35,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:37:35,667 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-12 19:37:35,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:37:35,670 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-12 19:37:35,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:37:35,692 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-12 19:37:35,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:37:35,732 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-12 19:37:35,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:37:35,747 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-10-12 19:37:35,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:37:35,750 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-10-12 19:37:35,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:37:35,753 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-10-12 19:37:35,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:37:35,756 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-10-12 19:37:35,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:37:35,758 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-10-12 19:37:35,758 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 19:37:35,758 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [145347548] [2024-10-12 19:37:35,758 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [145347548] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 19:37:35,759 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 19:37:35,759 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-10-12 19:37:35,759 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1903523362] [2024-10-12 19:37:35,759 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 19:37:35,759 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-10-12 19:37:35,760 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 19:37:35,760 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-10-12 19:37:35,760 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2024-10-12 19:37:35,760 INFO L87 Difference]: Start difference. First operand 350 states and 550 transitions. Second operand has 12 states, 11 states have (on average 5.909090909090909) internal successors, (65), 8 states have internal predecessors, (65), 4 states have call successors, (13), 6 states have call predecessors, (13), 3 states have return successors, (11), 3 states have call predecessors, (11), 4 states have call successors, (11) [2024-10-12 19:37:38,164 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 19:37:38,165 INFO L93 Difference]: Finished difference Result 826 states and 1318 transitions. [2024-10-12 19:37:38,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-12 19:37:38,165 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 5.909090909090909) internal successors, (65), 8 states have internal predecessors, (65), 4 states have call successors, (13), 6 states have call predecessors, (13), 3 states have return successors, (11), 3 states have call predecessors, (11), 4 states have call successors, (11) Word has length 97 [2024-10-12 19:37:38,166 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 19:37:38,169 INFO L225 Difference]: With dead ends: 826 [2024-10-12 19:37:38,169 INFO L226 Difference]: Without dead ends: 499 [2024-10-12 19:37:38,171 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 25 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 19:37:38,171 INFO L432 NwaCegarLoop]: 165 mSDtfsCounter, 940 mSDsluCounter, 1244 mSDsCounter, 0 mSdLazyCounter, 4035 mSolverCounterSat, 319 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 941 SdHoareTripleChecker+Valid, 1409 SdHoareTripleChecker+Invalid, 4354 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 319 IncrementalHoareTripleChecker+Valid, 4035 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2024-10-12 19:37:38,171 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [941 Valid, 1409 Invalid, 4354 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [319 Valid, 4035 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2024-10-12 19:37:38,172 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 499 states. [2024-10-12 19:37:38,197 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 499 to 352. [2024-10-12 19:37:38,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 352 states, 268 states have (on average 1.578358208955224) internal successors, (423), 275 states have internal predecessors, (423), 61 states have call successors, (61), 18 states have call predecessors, (61), 22 states have return successors, (72), 60 states have call predecessors, (72), 60 states have call successors, (72) [2024-10-12 19:37:38,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 352 states to 352 states and 556 transitions. [2024-10-12 19:37:38,200 INFO L78 Accepts]: Start accepts. Automaton has 352 states and 556 transitions. Word has length 97 [2024-10-12 19:37:38,200 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 19:37:38,200 INFO L471 AbstractCegarLoop]: Abstraction has 352 states and 556 transitions. [2024-10-12 19:37:38,201 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 5.909090909090909) internal successors, (65), 8 states have internal predecessors, (65), 4 states have call successors, (13), 6 states have call predecessors, (13), 3 states have return successors, (11), 3 states have call predecessors, (11), 4 states have call successors, (11) [2024-10-12 19:37:38,201 INFO L276 IsEmpty]: Start isEmpty. Operand 352 states and 556 transitions. [2024-10-12 19:37:38,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2024-10-12 19:37:38,202 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 19:37:38,203 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 19:37:38,203 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-12 19:37:38,203 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 19:37:38,203 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 19:37:38,203 INFO L85 PathProgramCache]: Analyzing trace with hash -1393192162, now seen corresponding path program 1 times [2024-10-12 19:37:38,203 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 19:37:38,204 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1464436279] [2024-10-12 19:37:38,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 19:37:38,204 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 19:37:38,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:37:38,341 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-12 19:37:38,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:37:38,353 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-12 19:37:38,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:37:38,357 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-12 19:37:38,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:37:38,381 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-12 19:37:38,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:37:38,391 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-12 19:37:38,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:37:38,399 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-12 19:37:38,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:37:38,415 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-12 19:37:38,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:37:38,430 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-12 19:37:38,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:37:38,432 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-10-12 19:37:38,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:37:38,434 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-10-12 19:37:38,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:37:38,436 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-10-12 19:37:38,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:37:38,438 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2024-10-12 19:37:38,438 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 19:37:38,438 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1464436279] [2024-10-12 19:37:38,438 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1464436279] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-12 19:37:38,438 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [73850410] [2024-10-12 19:37:38,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 19:37:38,439 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-12 19:37:38,439 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 19:37:38,440 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 19:37:38,442 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 19:37:38,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:37:38,697 INFO L255 TraceCheckSpWp]: Trace formula consists of 939 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-12 19:37:38,701 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-12 19:37:38,748 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-10-12 19:37:38,751 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-12 19:37:38,846 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-10-12 19:37:38,847 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [73850410] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-12 19:37:38,847 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-12 19:37:38,847 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 4, 4] total 15 [2024-10-12 19:37:38,847 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [48114240] [2024-10-12 19:37:38,847 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-12 19:37:38,850 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-10-12 19:37:38,850 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 19:37:38,851 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-10-12 19:37:38,851 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=177, Unknown=0, NotChecked=0, Total=210 [2024-10-12 19:37:38,851 INFO L87 Difference]: Start difference. First operand 352 states and 556 transitions. Second operand has 15 states, 14 states have (on average 7.642857142857143) internal successors, (107), 11 states have internal predecessors, (107), 4 states have call successors, (27), 6 states have call predecessors, (27), 3 states have return successors, (20), 3 states have call predecessors, (20), 4 states have call successors, (20) [2024-10-12 19:37:41,757 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 19:37:41,757 INFO L93 Difference]: Finished difference Result 1175 states and 1964 transitions. [2024-10-12 19:37:41,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-10-12 19:37:41,758 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 7.642857142857143) internal successors, (107), 11 states have internal predecessors, (107), 4 states have call successors, (27), 6 states have call predecessors, (27), 3 states have return successors, (20), 3 states have call predecessors, (20), 4 states have call successors, (20) Word has length 98 [2024-10-12 19:37:41,758 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 19:37:41,763 INFO L225 Difference]: With dead ends: 1175 [2024-10-12 19:37:41,763 INFO L226 Difference]: Without dead ends: 849 [2024-10-12 19:37:41,766 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 243 GetRequests, 213 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 149 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=164, Invalid=828, Unknown=0, NotChecked=0, Total=992 [2024-10-12 19:37:41,766 INFO L432 NwaCegarLoop]: 160 mSDtfsCounter, 1925 mSDsluCounter, 1474 mSDsCounter, 0 mSdLazyCounter, 4999 mSolverCounterSat, 610 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1942 SdHoareTripleChecker+Valid, 1634 SdHoareTripleChecker+Invalid, 5609 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 610 IncrementalHoareTripleChecker+Valid, 4999 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2024-10-12 19:37:41,767 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1942 Valid, 1634 Invalid, 5609 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [610 Valid, 4999 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2024-10-12 19:37:41,768 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 849 states. [2024-10-12 19:37:41,807 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 849 to 687. [2024-10-12 19:37:41,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 687 states, 539 states have (on average 1.6252319109461966) internal successors, (876), 546 states have internal predecessors, (876), 125 states have call successors, (125), 18 states have call predecessors, (125), 22 states have return successors, (146), 124 states have call predecessors, (146), 124 states have call successors, (146) [2024-10-12 19:37:41,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 687 states to 687 states and 1147 transitions. [2024-10-12 19:37:41,812 INFO L78 Accepts]: Start accepts. Automaton has 687 states and 1147 transitions. Word has length 98 [2024-10-12 19:37:41,812 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 19:37:41,812 INFO L471 AbstractCegarLoop]: Abstraction has 687 states and 1147 transitions. [2024-10-12 19:37:41,812 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 7.642857142857143) internal successors, (107), 11 states have internal predecessors, (107), 4 states have call successors, (27), 6 states have call predecessors, (27), 3 states have return successors, (20), 3 states have call predecessors, (20), 4 states have call successors, (20) [2024-10-12 19:37:41,812 INFO L276 IsEmpty]: Start isEmpty. Operand 687 states and 1147 transitions. [2024-10-12 19:37:41,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2024-10-12 19:37:41,816 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 19:37:41,816 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 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 19:37:41,835 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-10-12 19:37:42,020 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-12 19:37:42,021 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 19:37:42,021 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 19:37:42,021 INFO L85 PathProgramCache]: Analyzing trace with hash -1369596719, now seen corresponding path program 1 times [2024-10-12 19:37:42,022 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 19:37:42,022 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1731094883] [2024-10-12 19:37:42,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 19:37:42,022 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 19:37:42,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:37:42,092 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-12 19:37:42,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:37:42,102 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-12 19:37:42,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:37:42,106 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-12 19:37:42,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:37:42,109 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-12 19:37:42,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:37:42,112 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-12 19:37:42,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:37:42,115 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-12 19:37:42,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:37:42,125 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-10-12 19:37:42,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:37:42,135 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-10-12 19:37:42,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:37:42,137 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-12 19:37:42,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:37:42,141 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-10-12 19:37:42,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:37:42,143 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-10-12 19:37:42,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:37:42,145 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-10-12 19:37:42,145 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 19:37:42,146 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1731094883] [2024-10-12 19:37:42,146 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1731094883] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 19:37:42,146 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 19:37:42,146 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-12 19:37:42,146 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1020367175] [2024-10-12 19:37:42,146 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 19:37:42,147 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-12 19:37:42,147 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 19:37:42,147 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-12 19:37:42,147 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-12 19:37:42,148 INFO L87 Difference]: Start difference. First operand 687 states and 1147 transitions. Second operand has 7 states, 7 states have (on average 9.285714285714286) internal successors, (65), 3 states have internal predecessors, (65), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-10-12 19:37:43,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 19:37:43,627 INFO L93 Difference]: Finished difference Result 1770 states and 3023 transitions. [2024-10-12 19:37:43,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-12 19:37:43,628 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.285714285714286) internal successors, (65), 3 states have internal predecessors, (65), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 102 [2024-10-12 19:37:43,628 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 19:37:43,635 INFO L225 Difference]: With dead ends: 1770 [2024-10-12 19:37:43,636 INFO L226 Difference]: Without dead ends: 1151 [2024-10-12 19:37:43,639 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 24 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 19:37:43,639 INFO L432 NwaCegarLoop]: 176 mSDtfsCounter, 1045 mSDsluCounter, 587 mSDsCounter, 0 mSdLazyCounter, 1416 mSolverCounterSat, 373 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1060 SdHoareTripleChecker+Valid, 763 SdHoareTripleChecker+Invalid, 1789 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 373 IncrementalHoareTripleChecker+Valid, 1416 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-10-12 19:37:43,640 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1060 Valid, 763 Invalid, 1789 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [373 Valid, 1416 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-10-12 19:37:43,641 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1151 states. [2024-10-12 19:37:43,692 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1151 to 999. [2024-10-12 19:37:43,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 999 states, 787 states have (on average 1.636594663278272) internal successors, (1288), 794 states have internal predecessors, (1288), 189 states have call successors, (189), 18 states have call predecessors, (189), 22 states have return successors, (220), 188 states have call predecessors, (220), 188 states have call successors, (220) [2024-10-12 19:37:43,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 999 states to 999 states and 1697 transitions. [2024-10-12 19:37:43,699 INFO L78 Accepts]: Start accepts. Automaton has 999 states and 1697 transitions. Word has length 102 [2024-10-12 19:37:43,700 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 19:37:43,700 INFO L471 AbstractCegarLoop]: Abstraction has 999 states and 1697 transitions. [2024-10-12 19:37:43,700 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.285714285714286) internal successors, (65), 3 states have internal predecessors, (65), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-10-12 19:37:43,700 INFO L276 IsEmpty]: Start isEmpty. Operand 999 states and 1697 transitions. [2024-10-12 19:37:43,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2024-10-12 19:37:43,705 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 19:37:43,705 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 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 19:37:43,705 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-10-12 19:37:43,705 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 19:37:43,706 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 19:37:43,706 INFO L85 PathProgramCache]: Analyzing trace with hash 1626172755, now seen corresponding path program 1 times [2024-10-12 19:37:43,706 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 19:37:43,706 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [94724531] [2024-10-12 19:37:43,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 19:37:43,706 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 19:37:43,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:37:43,785 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-12 19:37:43,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:37:43,797 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-12 19:37:43,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:37:43,800 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-12 19:37:43,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:37:43,802 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-12 19:37:43,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:37:43,804 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-12 19:37:43,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:37:43,807 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-12 19:37:43,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:37:43,817 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-12 19:37:43,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:37:43,826 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-10-12 19:37:43,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:37:43,829 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-10-12 19:37:43,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:37:43,831 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-10-12 19:37:43,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:37:43,832 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-12 19:37:43,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:37:43,834 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-10-12 19:37:43,834 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 19:37:43,834 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [94724531] [2024-10-12 19:37:43,834 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [94724531] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 19:37:43,835 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 19:37:43,835 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-12 19:37:43,835 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1945575693] [2024-10-12 19:37:43,835 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 19:37:43,836 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-12 19:37:43,836 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 19:37:43,837 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-12 19:37:43,837 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-12 19:37:43,837 INFO L87 Difference]: Start difference. First operand 999 states and 1697 transitions. Second operand has 7 states, 7 states have (on average 9.428571428571429) internal successors, (66), 3 states have internal predecessors, (66), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-10-12 19:37:45,126 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 19:37:45,126 INFO L93 Difference]: Finished difference Result 2539 states and 4371 transitions. [2024-10-12 19:37:45,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-12 19:37:45,127 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.428571428571429) internal successors, (66), 3 states have internal predecessors, (66), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 103 [2024-10-12 19:37:45,127 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 19:37:45,136 INFO L225 Difference]: With dead ends: 2539 [2024-10-12 19:37:45,136 INFO L226 Difference]: Without dead ends: 1658 [2024-10-12 19:37:45,140 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 24 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 19:37:45,140 INFO L432 NwaCegarLoop]: 170 mSDtfsCounter, 1043 mSDsluCounter, 574 mSDsCounter, 0 mSdLazyCounter, 1415 mSolverCounterSat, 374 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1058 SdHoareTripleChecker+Valid, 744 SdHoareTripleChecker+Invalid, 1789 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 374 IncrementalHoareTripleChecker+Valid, 1415 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-10-12 19:37:45,141 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1058 Valid, 744 Invalid, 1789 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [374 Valid, 1415 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-10-12 19:37:45,142 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1658 states. [2024-10-12 19:37:45,214 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1658 to 1506. [2024-10-12 19:37:45,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1506 states, 1199 states have (on average 1.6413678065054211) internal successors, (1968), 1206 states have internal predecessors, (1968), 284 states have call successors, (284), 18 states have call predecessors, (284), 22 states have return successors, (315), 283 states have call predecessors, (315), 283 states have call successors, (315) [2024-10-12 19:37:45,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1506 states to 1506 states and 2567 transitions. [2024-10-12 19:37:45,224 INFO L78 Accepts]: Start accepts. Automaton has 1506 states and 2567 transitions. Word has length 103 [2024-10-12 19:37:45,225 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 19:37:45,225 INFO L471 AbstractCegarLoop]: Abstraction has 1506 states and 2567 transitions. [2024-10-12 19:37:45,225 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.428571428571429) internal successors, (66), 3 states have internal predecessors, (66), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-10-12 19:37:45,225 INFO L276 IsEmpty]: Start isEmpty. Operand 1506 states and 2567 transitions. [2024-10-12 19:37:45,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2024-10-12 19:37:45,231 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 19:37:45,231 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 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 19:37:45,232 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-10-12 19:37:45,232 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 19:37:45,232 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 19:37:45,232 INFO L85 PathProgramCache]: Analyzing trace with hash -1801362941, now seen corresponding path program 1 times [2024-10-12 19:37:45,232 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 19:37:45,233 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1688275899] [2024-10-12 19:37:45,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 19:37:45,233 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 19:37:45,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:37:45,289 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-12 19:37:45,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:37:45,299 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-12 19:37:45,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:37:45,303 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-12 19:37:45,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:37:45,305 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-12 19:37:45,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:37:45,309 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-12 19:37:45,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:37:45,312 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-12 19:37:45,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:37:45,320 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-10-12 19:37:45,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:37:45,331 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-12 19:37:45,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:37:45,334 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-10-12 19:37:45,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:37:45,336 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-10-12 19:37:45,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:37:45,339 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-10-12 19:37:45,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:37:45,341 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-10-12 19:37:45,341 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 19:37:45,341 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1688275899] [2024-10-12 19:37:45,342 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1688275899] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 19:37:45,342 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 19:37:45,342 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-12 19:37:45,342 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1435343010] [2024-10-12 19:37:45,342 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 19:37:45,342 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-12 19:37:45,343 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 19:37:45,343 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-12 19:37:45,343 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-12 19:37:45,343 INFO L87 Difference]: Start difference. First operand 1506 states and 2567 transitions. Second operand has 7 states, 7 states have (on average 9.571428571428571) internal successors, (67), 3 states have internal predecessors, (67), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-10-12 19:37:46,691 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 19:37:46,692 INFO L93 Difference]: Finished difference Result 3685 states and 6396 transitions. [2024-10-12 19:37:46,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-12 19:37:46,692 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.571428571428571) internal successors, (67), 3 states have internal predecessors, (67), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 104 [2024-10-12 19:37:46,693 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 19:37:46,707 INFO L225 Difference]: With dead ends: 3685 [2024-10-12 19:37:46,707 INFO L226 Difference]: Without dead ends: 2425 [2024-10-12 19:37:46,713 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 24 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 19:37:46,714 INFO L432 NwaCegarLoop]: 165 mSDtfsCounter, 1041 mSDsluCounter, 572 mSDsCounter, 0 mSdLazyCounter, 1393 mSolverCounterSat, 370 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1056 SdHoareTripleChecker+Valid, 737 SdHoareTripleChecker+Invalid, 1763 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 370 IncrementalHoareTripleChecker+Valid, 1393 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-10-12 19:37:46,714 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1056 Valid, 737 Invalid, 1763 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [370 Valid, 1393 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-10-12 19:37:46,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2425 states. [2024-10-12 19:37:46,837 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2425 to 2273. [2024-10-12 19:37:46,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2273 states, 1843 states have (on average 1.6456863809007054) internal successors, (3033), 1850 states have internal predecessors, (3033), 407 states have call successors, (407), 18 states have call predecessors, (407), 22 states have return successors, (454), 406 states have call predecessors, (454), 406 states have call successors, (454) [2024-10-12 19:37:46,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2273 states to 2273 states and 3894 transitions. [2024-10-12 19:37:46,852 INFO L78 Accepts]: Start accepts. Automaton has 2273 states and 3894 transitions. Word has length 104 [2024-10-12 19:37:46,852 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 19:37:46,853 INFO L471 AbstractCegarLoop]: Abstraction has 2273 states and 3894 transitions. [2024-10-12 19:37:46,853 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.571428571428571) internal successors, (67), 3 states have internal predecessors, (67), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-10-12 19:37:46,853 INFO L276 IsEmpty]: Start isEmpty. Operand 2273 states and 3894 transitions. [2024-10-12 19:37:46,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2024-10-12 19:37:46,860 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 19:37:46,861 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 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 19:37:46,861 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-10-12 19:37:46,861 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 19:37:46,861 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 19:37:46,861 INFO L85 PathProgramCache]: Analyzing trace with hash 1235976082, now seen corresponding path program 1 times [2024-10-12 19:37:46,862 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 19:37:46,862 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [560887912] [2024-10-12 19:37:46,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 19:37:46,862 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 19:37:46,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:37:46,918 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-12 19:37:46,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:37:46,928 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-12 19:37:46,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:37:46,931 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-12 19:37:46,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:37:46,933 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-12 19:37:46,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:37:46,936 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-12 19:37:46,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:37:46,938 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-12 19:37:46,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:37:46,947 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-10-12 19:37:46,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:37:46,957 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-10-12 19:37:46,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:37:46,960 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-10-12 19:37:46,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:37:46,962 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-10-12 19:37:46,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:37:46,964 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2024-10-12 19:37:46,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:37:46,965 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-10-12 19:37:46,966 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 19:37:46,966 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [560887912] [2024-10-12 19:37:46,966 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [560887912] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 19:37:46,966 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 19:37:46,967 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-12 19:37:46,967 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1132453016] [2024-10-12 19:37:46,967 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 19:37:46,967 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-12 19:37:46,967 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 19:37:46,968 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-12 19:37:46,968 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-12 19:37:46,968 INFO L87 Difference]: Start difference. First operand 2273 states and 3894 transitions. Second operand has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 3 states have internal predecessors, (68), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-10-12 19:37:48,335 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 19:37:48,336 INFO L93 Difference]: Finished difference Result 5467 states and 9554 transitions. [2024-10-12 19:37:48,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-12 19:37:48,337 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 3 states have internal predecessors, (68), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 105 [2024-10-12 19:37:48,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 19:37:48,356 INFO L225 Difference]: With dead ends: 5467 [2024-10-12 19:37:48,356 INFO L226 Difference]: Without dead ends: 3649 [2024-10-12 19:37:48,362 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 24 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 19:37:48,363 INFO L432 NwaCegarLoop]: 165 mSDtfsCounter, 1039 mSDsluCounter, 572 mSDsCounter, 0 mSdLazyCounter, 1397 mSolverCounterSat, 369 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1054 SdHoareTripleChecker+Valid, 737 SdHoareTripleChecker+Invalid, 1766 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 369 IncrementalHoareTripleChecker+Valid, 1397 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-10-12 19:37:48,363 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1054 Valid, 737 Invalid, 1766 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [369 Valid, 1397 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-10-12 19:37:48,366 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3649 states. [2024-10-12 19:37:48,503 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3649 to 3497. [2024-10-12 19:37:48,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3497 states, 2888 states have (on average 1.6485457063711912) internal successors, (4761), 2895 states have internal predecessors, (4761), 586 states have call successors, (586), 18 states have call predecessors, (586), 22 states have return successors, (659), 585 states have call predecessors, (659), 585 states have call successors, (659) [2024-10-12 19:37:48,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3497 states to 3497 states and 6006 transitions. [2024-10-12 19:37:48,524 INFO L78 Accepts]: Start accepts. Automaton has 3497 states and 6006 transitions. Word has length 105 [2024-10-12 19:37:48,524 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 19:37:48,525 INFO L471 AbstractCegarLoop]: Abstraction has 3497 states and 6006 transitions. [2024-10-12 19:37:48,525 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 3 states have internal predecessors, (68), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-10-12 19:37:48,525 INFO L276 IsEmpty]: Start isEmpty. Operand 3497 states and 6006 transitions. [2024-10-12 19:37:48,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2024-10-12 19:37:48,533 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 19:37:48,534 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 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 19:37:48,534 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-10-12 19:37:48,534 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 19:37:48,534 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 19:37:48,534 INFO L85 PathProgramCache]: Analyzing trace with hash 1701161031, now seen corresponding path program 1 times [2024-10-12 19:37:48,535 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 19:37:48,535 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [138414687] [2024-10-12 19:37:48,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 19:37:48,535 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 19:37:48,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:37:48,595 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-12 19:37:48,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:37:48,604 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-12 19:37:48,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:37:48,607 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-12 19:37:48,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:37:48,610 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-12 19:37:48,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:37:48,612 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-12 19:37:48,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:37:48,614 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-12 19:37:48,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:37:48,623 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-10-12 19:37:48,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:37:48,633 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-10-12 19:37:48,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:37:48,636 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-10-12 19:37:48,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:37:48,638 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-10-12 19:37:48,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:37:48,639 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-12 19:37:48,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:37:48,641 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-10-12 19:37:48,643 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 19:37:48,643 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [138414687] [2024-10-12 19:37:48,643 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [138414687] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 19:37:48,643 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 19:37:48,643 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-12 19:37:48,643 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [315006369] [2024-10-12 19:37:48,644 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 19:37:48,644 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-12 19:37:48,644 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 19:37:48,645 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-12 19:37:48,645 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-12 19:37:48,645 INFO L87 Difference]: Start difference. First operand 3497 states and 6006 transitions. Second operand has 7 states, 7 states have (on average 9.857142857142858) internal successors, (69), 3 states have internal predecessors, (69), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-10-12 19:37:50,168 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 19:37:50,168 INFO L93 Difference]: Finished difference Result 8446 states and 14794 transitions. [2024-10-12 19:37:50,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-12 19:37:50,169 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.857142857142858) internal successors, (69), 3 states have internal predecessors, (69), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 106 [2024-10-12 19:37:50,169 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 19:37:50,202 INFO L225 Difference]: With dead ends: 8446 [2024-10-12 19:37:50,202 INFO L226 Difference]: Without dead ends: 5707 [2024-10-12 19:37:50,214 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 24 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 19:37:50,215 INFO L432 NwaCegarLoop]: 180 mSDtfsCounter, 1037 mSDsluCounter, 595 mSDsCounter, 0 mSdLazyCounter, 1413 mSolverCounterSat, 370 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1052 SdHoareTripleChecker+Valid, 775 SdHoareTripleChecker+Invalid, 1783 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 370 IncrementalHoareTripleChecker+Valid, 1413 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-10-12 19:37:50,215 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1052 Valid, 775 Invalid, 1783 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [370 Valid, 1413 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-10-12 19:37:50,221 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5707 states. [2024-10-12 19:37:50,524 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5707 to 5555. [2024-10-12 19:37:50,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5555 states, 4570 states have (on average 1.637636761487965) internal successors, (7484), 4577 states have internal predecessors, (7484), 962 states have call successors, (962), 18 states have call predecessors, (962), 22 states have return successors, (1079), 961 states have call predecessors, (1079), 961 states have call successors, (1079) [2024-10-12 19:37:50,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5555 states to 5555 states and 9525 transitions. [2024-10-12 19:37:50,564 INFO L78 Accepts]: Start accepts. Automaton has 5555 states and 9525 transitions. Word has length 106 [2024-10-12 19:37:50,564 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 19:37:50,564 INFO L471 AbstractCegarLoop]: Abstraction has 5555 states and 9525 transitions. [2024-10-12 19:37:50,565 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.857142857142858) internal successors, (69), 3 states have internal predecessors, (69), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-10-12 19:37:50,565 INFO L276 IsEmpty]: Start isEmpty. Operand 5555 states and 9525 transitions. [2024-10-12 19:37:50,579 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-10-12 19:37:50,579 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 19:37:50,579 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 19:37:50,579 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-10-12 19:37:50,580 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 19:37:50,580 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 19:37:50,580 INFO L85 PathProgramCache]: Analyzing trace with hash 1184490830, now seen corresponding path program 1 times [2024-10-12 19:37:50,580 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 19:37:50,580 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1158962] [2024-10-12 19:37:50,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 19:37:50,581 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 19:37:50,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:37:50,641 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-12 19:37:50,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:37:50,652 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-12 19:37:50,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:37:50,655 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-12 19:37:50,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:37:50,658 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-12 19:37:50,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:37:50,660 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-12 19:37:50,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:37:50,662 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-12 19:37:50,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:37:50,671 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-10-12 19:37:50,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:37:50,680 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-10-12 19:37:50,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:37:50,683 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-10-12 19:37:50,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:37:50,685 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-12 19:37:50,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:37:50,687 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-10-12 19:37:50,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:37:50,692 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-10-12 19:37:50,692 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 19:37:50,692 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1158962] [2024-10-12 19:37:50,692 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1158962] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 19:37:50,692 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 19:37:50,692 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-12 19:37:50,692 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [831074077] [2024-10-12 19:37:50,692 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 19:37:50,693 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-12 19:37:50,693 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 19:37:50,694 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-12 19:37:50,694 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-12 19:37:50,694 INFO L87 Difference]: Start difference. First operand 5555 states and 9525 transitions. Second operand has 7 states, 7 states have (on average 10.0) internal successors, (70), 3 states have internal predecessors, (70), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-10-12 19:37:52,089 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 19:37:52,089 INFO L93 Difference]: Finished difference Result 13807 states and 24151 transitions. [2024-10-12 19:37:52,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-12 19:37:52,090 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.0) internal successors, (70), 3 states have internal predecessors, (70), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 107 [2024-10-12 19:37:52,091 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 19:37:52,163 INFO L225 Difference]: With dead ends: 13807 [2024-10-12 19:37:52,163 INFO L226 Difference]: Without dead ends: 9396 [2024-10-12 19:37:52,181 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 24 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 19:37:52,182 INFO L432 NwaCegarLoop]: 165 mSDtfsCounter, 1035 mSDsluCounter, 573 mSDsCounter, 0 mSdLazyCounter, 1391 mSolverCounterSat, 377 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1050 SdHoareTripleChecker+Valid, 738 SdHoareTripleChecker+Invalid, 1768 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 377 IncrementalHoareTripleChecker+Valid, 1391 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-10-12 19:37:52,182 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1050 Valid, 738 Invalid, 1768 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [377 Valid, 1391 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-10-12 19:37:52,192 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9396 states. [2024-10-12 19:37:52,580 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9396 to 9244. [2024-10-12 19:37:52,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9244 states, 7653 states have (on average 1.6351757480726512) internal successors, (12514), 7660 states have internal predecessors, (12514), 1568 states have call successors, (1568), 18 states have call predecessors, (1568), 22 states have return successors, (1763), 1567 states have call predecessors, (1763), 1567 states have call successors, (1763) [2024-10-12 19:37:52,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9244 states to 9244 states and 15845 transitions. [2024-10-12 19:37:52,638 INFO L78 Accepts]: Start accepts. Automaton has 9244 states and 15845 transitions. Word has length 107 [2024-10-12 19:37:52,639 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 19:37:52,639 INFO L471 AbstractCegarLoop]: Abstraction has 9244 states and 15845 transitions. [2024-10-12 19:37:52,642 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.0) internal successors, (70), 3 states have internal predecessors, (70), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-10-12 19:37:52,642 INFO L276 IsEmpty]: Start isEmpty. Operand 9244 states and 15845 transitions. [2024-10-12 19:37:52,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-10-12 19:37:52,659 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 19:37:52,659 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 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 19:37:52,659 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-10-12 19:37:52,660 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 19:37:52,660 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 19:37:52,660 INFO L85 PathProgramCache]: Analyzing trace with hash -1943320807, now seen corresponding path program 1 times [2024-10-12 19:37:52,660 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 19:37:52,660 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [235254470] [2024-10-12 19:37:52,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 19:37:52,661 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 19:37:52,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:37:52,775 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-12 19:37:52,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:37:52,783 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-12 19:37:52,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:37:52,786 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-12 19:37:52,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:37:52,789 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-12 19:37:52,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:37:52,793 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-12 19:37:52,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:37:52,798 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-12 19:37:52,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:37:52,810 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-10-12 19:37:52,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:37:52,823 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-10-12 19:37:52,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:37:52,827 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-12 19:37:52,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:37:52,829 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-10-12 19:37:52,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:37:52,832 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-10-12 19:37:52,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:37:52,834 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-10-12 19:37:52,835 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 19:37:52,835 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [235254470] [2024-10-12 19:37:52,835 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [235254470] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 19:37:52,835 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 19:37:52,835 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-12 19:37:52,835 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [317786765] [2024-10-12 19:37:52,836 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 19:37:52,836 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-12 19:37:52,836 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 19:37:52,838 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-12 19:37:52,838 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-12 19:37:52,838 INFO L87 Difference]: Start difference. First operand 9244 states and 15845 transitions. Second operand has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 3 states have internal predecessors, (71), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-10-12 19:37:54,368 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 19:37:54,369 INFO L93 Difference]: Finished difference Result 23999 states and 41915 transitions. [2024-10-12 19:37:54,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-12 19:37:54,370 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 3 states have internal predecessors, (71), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 108 [2024-10-12 19:37:54,370 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 19:37:54,444 INFO L225 Difference]: With dead ends: 23999 [2024-10-12 19:37:54,444 INFO L226 Difference]: Without dead ends: 16356 [2024-10-12 19:37:54,474 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 24 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 19:37:54,475 INFO L432 NwaCegarLoop]: 180 mSDtfsCounter, 1033 mSDsluCounter, 596 mSDsCounter, 0 mSdLazyCounter, 1436 mSolverCounterSat, 373 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1048 SdHoareTripleChecker+Valid, 776 SdHoareTripleChecker+Invalid, 1809 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 373 IncrementalHoareTripleChecker+Valid, 1436 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-10-12 19:37:54,475 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1048 Valid, 776 Invalid, 1809 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [373 Valid, 1436 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-10-12 19:37:54,487 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16356 states. [2024-10-12 19:37:55,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16356 to 16204. [2024-10-12 19:37:55,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16204 states, 13410 states have (on average 1.6261744966442953) internal successors, (21807), 13417 states have internal predecessors, (21807), 2771 states have call successors, (2771), 18 states have call predecessors, (2771), 22 states have return successors, (3110), 2770 states have call predecessors, (3110), 2770 states have call successors, (3110) [2024-10-12 19:37:55,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16204 states to 16204 states and 27688 transitions. [2024-10-12 19:37:55,228 INFO L78 Accepts]: Start accepts. Automaton has 16204 states and 27688 transitions. Word has length 108 [2024-10-12 19:37:55,228 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 19:37:55,228 INFO L471 AbstractCegarLoop]: Abstraction has 16204 states and 27688 transitions. [2024-10-12 19:37:55,229 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 3 states have internal predecessors, (71), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-10-12 19:37:55,229 INFO L276 IsEmpty]: Start isEmpty. Operand 16204 states and 27688 transitions. [2024-10-12 19:37:55,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-10-12 19:37:55,252 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 19:37:55,252 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 19:37:55,253 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-10-12 19:37:55,253 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 19:37:55,253 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 19:37:55,253 INFO L85 PathProgramCache]: Analyzing trace with hash -1435266451, now seen corresponding path program 1 times [2024-10-12 19:37:55,253 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 19:37:55,254 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [619204816] [2024-10-12 19:37:55,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 19:37:55,254 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 19:37:55,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:37:55,377 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-12 19:37:55,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:37:55,388 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-12 19:37:55,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:37:55,392 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-12 19:37:55,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:37:55,394 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-12 19:37:55,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:37:55,396 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-12 19:37:55,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:37:55,398 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-12 19:37:55,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:37:55,408 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-12 19:37:55,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:37:55,421 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-12 19:37:55,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:37:55,423 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-10-12 19:37:55,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:37:55,424 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-10-12 19:37:55,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:37:55,426 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-10-12 19:37:55,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:37:55,428 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-10-12 19:37:55,428 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 19:37:55,428 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [619204816] [2024-10-12 19:37:55,428 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [619204816] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 19:37:55,429 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 19:37:55,429 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-12 19:37:55,429 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [263335324] [2024-10-12 19:37:55,429 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 19:37:55,430 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-12 19:37:55,430 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 19:37:55,432 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-12 19:37:55,432 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-12 19:37:55,432 INFO L87 Difference]: Start difference. First operand 16204 states and 27688 transitions. Second operand has 7 states, 7 states have (on average 10.285714285714286) internal successors, (72), 3 states have internal predecessors, (72), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-10-12 19:37:57,355 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 19:37:57,356 INFO L93 Difference]: Finished difference Result 42974 states and 74927 transitions. [2024-10-12 19:37:57,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-12 19:37:57,357 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.285714285714286) internal successors, (72), 3 states have internal predecessors, (72), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 109 [2024-10-12 19:37:57,357 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 19:37:57,507 INFO L225 Difference]: With dead ends: 42974 [2024-10-12 19:37:57,507 INFO L226 Difference]: Without dead ends: 29019 [2024-10-12 19:37:57,569 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 24 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 19:37:57,569 INFO L432 NwaCegarLoop]: 165 mSDtfsCounter, 1031 mSDsluCounter, 573 mSDsCounter, 0 mSdLazyCounter, 1392 mSolverCounterSat, 378 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1046 SdHoareTripleChecker+Valid, 738 SdHoareTripleChecker+Invalid, 1770 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 378 IncrementalHoareTripleChecker+Valid, 1392 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-10-12 19:37:57,570 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1046 Valid, 738 Invalid, 1770 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [378 Valid, 1392 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-10-12 19:37:57,597 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29019 states. [2024-10-12 19:37:58,710 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29019 to 28867. [2024-10-12 19:37:58,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28867 states, 24034 states have (on average 1.6224099192810186) internal successors, (38993), 24041 states have internal predecessors, (38993), 4810 states have call successors, (4810), 18 states have call predecessors, (4810), 22 states have return successors, (5423), 4809 states have call predecessors, (5423), 4809 states have call successors, (5423) [2024-10-12 19:37:58,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28867 states to 28867 states and 49226 transitions. [2024-10-12 19:37:58,890 INFO L78 Accepts]: Start accepts. Automaton has 28867 states and 49226 transitions. Word has length 109 [2024-10-12 19:37:58,891 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 19:37:58,891 INFO L471 AbstractCegarLoop]: Abstraction has 28867 states and 49226 transitions. [2024-10-12 19:37:58,891 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.285714285714286) internal successors, (72), 3 states have internal predecessors, (72), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-10-12 19:37:58,891 INFO L276 IsEmpty]: Start isEmpty. Operand 28867 states and 49226 transitions. [2024-10-12 19:37:58,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2024-10-12 19:37:58,918 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 19:37:58,919 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 19:37:58,919 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-10-12 19:37:58,919 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 19:37:58,919 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 19:37:58,920 INFO L85 PathProgramCache]: Analyzing trace with hash -2053276681, now seen corresponding path program 1 times [2024-10-12 19:37:58,920 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 19:37:58,920 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [886675261] [2024-10-12 19:37:58,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 19:37:58,920 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 19:37:58,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:37:58,982 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-12 19:37:58,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:37:58,992 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-12 19:37:58,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:37:58,995 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-12 19:37:58,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:37:58,998 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-12 19:37:59,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:37:59,001 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-12 19:37:59,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:37:59,004 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-12 19:37:59,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:37:59,013 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-10-12 19:37:59,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:37:59,026 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-12 19:37:59,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:37:59,028 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-10-12 19:37:59,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:37:59,030 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-12 19:37:59,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:37:59,033 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-10-12 19:37:59,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:37:59,035 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-10-12 19:37:59,035 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 19:37:59,036 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [886675261] [2024-10-12 19:37:59,036 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [886675261] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 19:37:59,036 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 19:37:59,036 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-12 19:37:59,036 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1650356382] [2024-10-12 19:37:59,037 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 19:37:59,037 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-12 19:37:59,037 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 19:37:59,038 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-12 19:37:59,038 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-12 19:37:59,038 INFO L87 Difference]: Start difference. First operand 28867 states and 49226 transitions. Second operand has 7 states, 7 states have (on average 10.428571428571429) internal successors, (73), 3 states have internal predecessors, (73), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-10-12 19:38:01,703 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 19:38:01,703 INFO L93 Difference]: Finished difference Result 78746 states and 136486 transitions. [2024-10-12 19:38:01,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-12 19:38:01,704 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.428571428571429) internal successors, (73), 3 states have internal predecessors, (73), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 110 [2024-10-12 19:38:01,704 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 19:38:01,947 INFO L225 Difference]: With dead ends: 78746 [2024-10-12 19:38:01,947 INFO L226 Difference]: Without dead ends: 52907 [2024-10-12 19:38:02,026 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 24 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 19:38:02,028 INFO L432 NwaCegarLoop]: 171 mSDtfsCounter, 1029 mSDsluCounter, 578 mSDsCounter, 0 mSdLazyCounter, 1413 mSolverCounterSat, 374 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1044 SdHoareTripleChecker+Valid, 749 SdHoareTripleChecker+Invalid, 1787 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 374 IncrementalHoareTripleChecker+Valid, 1413 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-10-12 19:38:02,028 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1044 Valid, 749 Invalid, 1787 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [374 Valid, 1413 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-10-12 19:38:02,071 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52907 states. [2024-10-12 19:38:04,306 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52907 to 52755. [2024-10-12 19:38:04,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52755 states, 44207 states have (on average 1.61745877349741) internal successors, (71503), 44214 states have internal predecessors, (71503), 8525 states have call successors, (8525), 18 states have call predecessors, (8525), 22 states have return successors, (9670), 8524 states have call predecessors, (9670), 8524 states have call successors, (9670) [2024-10-12 19:38:04,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52755 states to 52755 states and 89698 transitions. [2024-10-12 19:38:04,611 INFO L78 Accepts]: Start accepts. Automaton has 52755 states and 89698 transitions. Word has length 110 [2024-10-12 19:38:04,612 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 19:38:04,612 INFO L471 AbstractCegarLoop]: Abstraction has 52755 states and 89698 transitions. [2024-10-12 19:38:04,612 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.428571428571429) internal successors, (73), 3 states have internal predecessors, (73), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-10-12 19:38:04,612 INFO L276 IsEmpty]: Start isEmpty. Operand 52755 states and 89698 transitions. [2024-10-12 19:38:04,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-10-12 19:38:04,634 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 19:38:04,634 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 19:38:04,635 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-10-12 19:38:04,635 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 19:38:04,635 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 19:38:04,635 INFO L85 PathProgramCache]: Analyzing trace with hash 1535867213, now seen corresponding path program 1 times [2024-10-12 19:38:04,635 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 19:38:04,636 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [660015681] [2024-10-12 19:38:04,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 19:38:04,636 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 19:38:04,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:38:04,695 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-12 19:38:04,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:38:04,704 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-12 19:38:04,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:38:04,707 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-12 19:38:04,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:38:04,709 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-12 19:38:04,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:38:04,712 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-12 19:38:04,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:38:04,716 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-12 19:38:04,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:38:04,724 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-10-12 19:38:04,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:38:04,734 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-10-12 19:38:04,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:38:04,737 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-10-12 19:38:04,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:38:04,740 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-10-12 19:38:04,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:38:04,742 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-10-12 19:38:04,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:38:04,746 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-10-12 19:38:04,746 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 19:38:04,747 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [660015681] [2024-10-12 19:38:04,747 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [660015681] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 19:38:04,747 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 19:38:04,747 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-12 19:38:04,747 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [443207698] [2024-10-12 19:38:04,747 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 19:38:04,747 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-12 19:38:04,748 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 19:38:04,748 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-12 19:38:04,748 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-12 19:38:04,748 INFO L87 Difference]: Start difference. First operand 52755 states and 89698 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, (13), 6 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-10-12 19:38:08,413 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 19:38:08,413 INFO L93 Difference]: Finished difference Result 98521 states and 171191 transitions. [2024-10-12 19:38:08,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-12 19:38:08,414 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, (13), 6 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 111 [2024-10-12 19:38:08,414 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 19:38:08,940 INFO L225 Difference]: With dead ends: 98521 [2024-10-12 19:38:08,940 INFO L226 Difference]: Without dead ends: 98379 [2024-10-12 19:38:09,000 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 24 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 19:38:09,002 INFO L432 NwaCegarLoop]: 167 mSDtfsCounter, 1024 mSDsluCounter, 580 mSDsCounter, 0 mSdLazyCounter, 1398 mSolverCounterSat, 372 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1038 SdHoareTripleChecker+Valid, 747 SdHoareTripleChecker+Invalid, 1770 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 372 IncrementalHoareTripleChecker+Valid, 1398 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-10-12 19:38:09,002 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1038 Valid, 747 Invalid, 1770 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [372 Valid, 1398 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-10-12 19:38:09,090 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98379 states. [2024-10-12 19:38:12,449 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98379 to 98227. [2024-10-12 19:38:12,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 98227 states, 82880 states have (on average 1.6111486486486486) internal successors, (133532), 82887 states have internal predecessors, (133532), 15324 states have call successors, (15324), 18 states have call predecessors, (15324), 22 states have return successors, (17515), 15323 states have call predecessors, (17515), 15323 states have call successors, (17515) [2024-10-12 19:38:13,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98227 states to 98227 states and 166371 transitions. [2024-10-12 19:38:13,486 INFO L78 Accepts]: Start accepts. Automaton has 98227 states and 166371 transitions. Word has length 111 [2024-10-12 19:38:13,486 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 19:38:13,486 INFO L471 AbstractCegarLoop]: Abstraction has 98227 states and 166371 transitions. [2024-10-12 19:38:13,487 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, (13), 6 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-10-12 19:38:13,487 INFO L276 IsEmpty]: Start isEmpty. Operand 98227 states and 166371 transitions. [2024-10-12 19:38:13,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2024-10-12 19:38:13,511 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 19:38:13,511 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 19:38:13,512 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-10-12 19:38:13,512 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 19:38:13,512 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 19:38:13,512 INFO L85 PathProgramCache]: Analyzing trace with hash -1845533864, now seen corresponding path program 1 times [2024-10-12 19:38:13,512 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 19:38:13,512 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [147141150] [2024-10-12 19:38:13,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 19:38:13,513 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 19:38:13,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:38:13,841 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-12 19:38:13,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:38:13,856 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-12 19:38:13,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:38:13,863 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-12 19:38:13,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:38:13,869 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-12 19:38:13,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:38:13,877 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-12 19:38:13,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:38:13,886 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-12 19:38:13,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:38:13,907 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-10-12 19:38:13,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:38:13,922 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-10-12 19:38:13,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:38:13,952 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-12 19:38:13,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:38:13,969 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2024-10-12 19:38:13,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:38:13,971 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-12 19:38:13,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:38:13,973 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-10-12 19:38:13,974 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 19:38:13,974 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [147141150] [2024-10-12 19:38:13,974 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [147141150] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 19:38:13,974 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 19:38:13,974 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2024-10-12 19:38:13,974 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1319154623] [2024-10-12 19:38:13,974 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 19:38:13,975 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-10-12 19:38:13,975 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 19:38:13,976 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-10-12 19:38:13,976 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=205, Unknown=0, NotChecked=0, Total=240 [2024-10-12 19:38:13,976 INFO L87 Difference]: Start difference. First operand 98227 states and 166371 transitions. Second operand has 16 states, 15 states have (on average 5.0) internal successors, (75), 10 states have internal predecessors, (75), 5 states have call successors, (13), 7 states have call predecessors, (13), 3 states have return successors, (11), 6 states have call predecessors, (11), 5 states have call successors, (11) [2024-10-12 19:38:23,466 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 19:38:23,466 INFO L93 Difference]: Finished difference Result 196173 states and 344262 transitions. [2024-10-12 19:38:23,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2024-10-12 19:38:23,467 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 5.0) internal successors, (75), 10 states have internal predecessors, (75), 5 states have call successors, (13), 7 states have call predecessors, (13), 3 states have return successors, (11), 6 states have call predecessors, (11), 5 states have call successors, (11) Word has length 112 [2024-10-12 19:38:23,467 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 19:38:24,579 INFO L225 Difference]: With dead ends: 196173 [2024-10-12 19:38:24,580 INFO L226 Difference]: Without dead ends: 196036 [2024-10-12 19:38:24,678 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 951 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=648, Invalid=2544, Unknown=0, NotChecked=0, Total=3192 [2024-10-12 19:38:24,679 INFO L432 NwaCegarLoop]: 215 mSDtfsCounter, 3677 mSDsluCounter, 1982 mSDsCounter, 0 mSdLazyCounter, 5939 mSolverCounterSat, 1208 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3688 SdHoareTripleChecker+Valid, 2197 SdHoareTripleChecker+Invalid, 7147 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1208 IncrementalHoareTripleChecker+Valid, 5939 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2024-10-12 19:38:24,679 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3688 Valid, 2197 Invalid, 7147 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1208 Valid, 5939 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time] [2024-10-12 19:38:24,826 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 196036 states.