./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_spec11_product24.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_spec11_product24.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 51fa488e776e831bac86701b44da2398387b953b2cee791cda39a1547c039fcd --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-mul-div-a046e57-m [2024-10-12 19:24:18,835 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-12 19:24:18,913 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-12 19:24:18,919 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-12 19:24:18,920 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-12 19:24:18,946 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-12 19:24:18,947 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-12 19:24:18,947 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-12 19:24:18,948 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-12 19:24:18,949 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-12 19:24:18,949 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-12 19:24:18,950 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-12 19:24:18,950 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-12 19:24:18,951 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-12 19:24:18,953 INFO L153 SettingsManager]: * Use SBE=true [2024-10-12 19:24:18,953 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-12 19:24:18,953 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-12 19:24:18,953 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-12 19:24:18,954 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-12 19:24:18,954 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-12 19:24:18,954 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-12 19:24:18,958 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-12 19:24:18,958 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-12 19:24:18,958 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-12 19:24:18,958 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-12 19:24:18,958 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-12 19:24:18,959 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-12 19:24:18,959 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-12 19:24:18,959 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-12 19:24:18,959 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-12 19:24:18,959 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-12 19:24:18,960 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-12 19:24:18,960 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-12 19:24:18,960 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-12 19:24:18,960 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-12 19:24:18,961 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-12 19:24:18,961 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-12 19:24:18,961 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-12 19:24:18,962 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-12 19:24:18,962 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-12 19:24:18,962 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-12 19:24:18,963 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-12 19:24:18,963 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 51fa488e776e831bac86701b44da2398387b953b2cee791cda39a1547c039fcd [2024-10-12 19:24:19,230 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-12 19:24:19,253 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-12 19:24:19,256 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-12 19:24:19,257 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-12 19:24:19,258 INFO L274 PluginConnector]: CDTParser initialized [2024-10-12 19:24:19,259 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/email_spec11_product24.cil.c [2024-10-12 19:24:20,701 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-12 19:24:20,981 INFO L384 CDTParser]: Found 1 translation units. [2024-10-12 19:24:20,982 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/email_spec11_product24.cil.c [2024-10-12 19:24:21,017 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f280bdcfe/70733152c84c41e19bf24c72e80ec80e/FLAGcf6cd5f5f [2024-10-12 19:24:21,259 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f280bdcfe/70733152c84c41e19bf24c72e80ec80e [2024-10-12 19:24:21,262 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-12 19:24:21,263 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-12 19:24:21,264 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-12 19:24:21,264 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-12 19:24:21,269 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-12 19:24:21,269 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 07:24:21" (1/1) ... [2024-10-12 19:24:21,270 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5d34883a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:24:21, skipping insertion in model container [2024-10-12 19:24:21,270 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 07:24:21" (1/1) ... [2024-10-12 19:24:21,327 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-12 19:24:21,739 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_spec11_product24.cil.c[16887,16900] [2024-10-12 19:24:21,906 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-12 19:24:21,943 INFO L200 MainTranslator]: Completed pre-run [2024-10-12 19:24:21,963 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [48] [2024-10-12 19:24:21,965 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [375] [2024-10-12 19:24:21,966 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [741] [2024-10-12 19:24:21,969 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"ClientLib.i","") [750] [2024-10-12 19:24:21,969 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [1821] [2024-10-12 19:24:21,969 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Email.i","") [1856] [2024-10-12 19:24:21,969 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"EmailLib.i","") [1963] [2024-10-12 19:24:21,970 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Util.i","") [2367] [2024-10-12 19:24:21,970 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"DecryptAutoResponder_spec.i","") [2384] [2024-10-12 19:24:21,970 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [2403] [2024-10-12 19:24:21,970 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Client.i","") [2622] [2024-10-12 19:24:22,022 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_spec11_product24.cil.c[16887,16900] [2024-10-12 19:24:22,099 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-12 19:24:22,138 INFO L204 MainTranslator]: Completed translation [2024-10-12 19:24:22,138 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:24:22 WrapperNode [2024-10-12 19:24:22,138 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-12 19:24:22,139 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-12 19:24:22,139 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-12 19:24:22,139 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-12 19:24:22,144 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:24:22" (1/1) ... [2024-10-12 19:24:22,166 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:24:22" (1/1) ... [2024-10-12 19:24:22,217 INFO L138 Inliner]: procedures = 130, calls = 192, calls flagged for inlining = 64, calls inlined = 59, statements flattened = 1058 [2024-10-12 19:24:22,217 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-12 19:24:22,218 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-12 19:24:22,218 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-12 19:24:22,218 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-12 19:24:22,231 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:24:22" (1/1) ... [2024-10-12 19:24:22,231 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:24:22" (1/1) ... [2024-10-12 19:24:22,236 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:24:22" (1/1) ... [2024-10-12 19:24:22,267 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 19:24:22,268 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:24:22" (1/1) ... [2024-10-12 19:24:22,268 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:24:22" (1/1) ... [2024-10-12 19:24:22,283 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:24:22" (1/1) ... [2024-10-12 19:24:22,290 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:24:22" (1/1) ... [2024-10-12 19:24:22,294 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:24:22" (1/1) ... [2024-10-12 19:24:22,298 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:24:22" (1/1) ... [2024-10-12 19:24:22,311 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-12 19:24:22,316 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-12 19:24:22,317 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-12 19:24:22,317 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-12 19:24:22,318 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:24:22" (1/1) ... [2024-10-12 19:24:22,329 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-12 19:24:22,342 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 19:24:22,363 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 19:24:22,366 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 19:24:22,414 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2024-10-12 19:24:22,414 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2024-10-12 19:24:22,414 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2024-10-12 19:24:22,414 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2024-10-12 19:24:22,415 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2024-10-12 19:24:22,415 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2024-10-12 19:24:22,415 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2024-10-12 19:24:22,416 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2024-10-12 19:24:22,416 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2024-10-12 19:24:22,416 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2024-10-12 19:24:22,416 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2024-10-12 19:24:22,417 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2024-10-12 19:24:22,417 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2024-10-12 19:24:22,417 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2024-10-12 19:24:22,418 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2024-10-12 19:24:22,418 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2024-10-12 19:24:22,418 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2024-10-12 19:24:22,418 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2024-10-12 19:24:22,419 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-12 19:24:22,420 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2024-10-12 19:24:22,420 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2024-10-12 19:24:22,420 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2024-10-12 19:24:22,420 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2024-10-12 19:24:22,420 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2024-10-12 19:24:22,420 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2024-10-12 19:24:22,420 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2024-10-12 19:24:22,420 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2024-10-12 19:24:22,420 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2024-10-12 19:24:22,420 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2024-10-12 19:24:22,420 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2024-10-12 19:24:22,420 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2024-10-12 19:24:22,420 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2024-10-12 19:24:22,421 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2024-10-12 19:24:22,421 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-12 19:24:22,421 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-10-12 19:24:22,421 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-10-12 19:24:22,421 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-10-12 19:24:22,421 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2024-10-12 19:24:22,421 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2024-10-12 19:24:22,421 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-12 19:24:22,421 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-12 19:24:22,630 INFO L238 CfgBuilder]: Building ICFG [2024-10-12 19:24:22,632 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-12 19:24:23,500 INFO L? ?]: Removed 460 outVars from TransFormulas that were not future-live. [2024-10-12 19:24:23,500 INFO L287 CfgBuilder]: Performing block encoding [2024-10-12 19:24:23,565 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-12 19:24:23,566 INFO L314 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-12 19:24:23,566 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 07:24:23 BoogieIcfgContainer [2024-10-12 19:24:23,567 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-12 19:24:23,569 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-12 19:24:23,569 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-12 19:24:23,573 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-12 19:24:23,573 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.10 07:24:21" (1/3) ... [2024-10-12 19:24:23,574 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d9c30b1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 07:24:23, skipping insertion in model container [2024-10-12 19:24:23,574 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:24:22" (2/3) ... [2024-10-12 19:24:23,574 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d9c30b1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 07:24:23, skipping insertion in model container [2024-10-12 19:24:23,575 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 07:24:23" (3/3) ... [2024-10-12 19:24:23,577 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec11_product24.cil.c [2024-10-12 19:24:23,592 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-12 19:24:23,593 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-12 19:24:23,671 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-12 19:24:23,678 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;@808921f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-12 19:24:23,678 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-12 19:24:23,686 INFO L276 IsEmpty]: Start isEmpty. Operand has 292 states, 227 states have (on average 1.5991189427312775) internal successors, (363), 229 states have internal predecessors, (363), 46 states have call successors, (46), 17 states have call predecessors, (46), 17 states have return successors, (46), 46 states have call predecessors, (46), 46 states have call successors, (46) [2024-10-12 19:24:23,711 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2024-10-12 19:24:23,712 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 19:24:23,713 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] [2024-10-12 19:24:23,714 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 19:24:23,720 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 19:24:23,721 INFO L85 PathProgramCache]: Analyzing trace with hash 326833349, now seen corresponding path program 1 times [2024-10-12 19:24:23,730 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 19:24:23,731 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [712692841] [2024-10-12 19:24:23,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 19:24:23,732 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 19:24:23,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:24:24,399 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-12 19:24:24,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:24:24,417 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-12 19:24:24,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:24:24,424 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-12 19:24:24,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:24:24,476 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-12 19:24:24,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:24:24,484 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-12 19:24:24,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:24:24,492 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-12 19:24:24,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:24:24,515 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-10-12 19:24:24,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:24:24,532 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-10-12 19:24:24,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:24:24,538 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-10-12 19:24:24,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:24:24,542 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-10-12 19:24:24,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:24:24,546 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-12 19:24:24,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:24:24,551 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-10-12 19:24:24,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:24:24,555 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 19:24:24,556 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 19:24:24,557 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [712692841] [2024-10-12 19:24:24,557 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [712692841] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-12 19:24:24,558 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [593594407] [2024-10-12 19:24:24,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 19:24:24,559 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-12 19:24:24,559 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 19:24:24,562 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 19:24:24,564 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 19:24:24,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:24:24,934 INFO L255 TraceCheckSpWp]: Trace formula consists of 958 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-10-12 19:24:24,941 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-12 19:24:24,957 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 19:24:24,958 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-12 19:24:24,958 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [593594407] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 19:24:24,958 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-12 19:24:24,958 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [9] total 9 [2024-10-12 19:24:24,961 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [781506759] [2024-10-12 19:24:24,961 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 19:24:24,965 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-12 19:24:24,965 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 19:24:24,999 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-12 19:24:25,000 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-10-12 19:24:25,003 INFO L87 Difference]: Start difference. First operand has 292 states, 227 states have (on average 1.5991189427312775) internal successors, (363), 229 states have internal predecessors, (363), 46 states have call successors, (46), 17 states have call predecessors, (46), 17 states have return successors, (46), 46 states have call predecessors, (46), 46 states have call successors, (46) Second operand has 2 states, 2 states have (on average 23.0) internal successors, (46), 2 states have internal predecessors, (46), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-10-12 19:24:25,091 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 19:24:25,092 INFO L93 Difference]: Finished difference Result 435 states and 666 transitions. [2024-10-12 19:24:25,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-12 19:24:25,095 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 23.0) internal successors, (46), 2 states have internal predecessors, (46), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 88 [2024-10-12 19:24:25,095 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 19:24:25,110 INFO L225 Difference]: With dead ends: 435 [2024-10-12 19:24:25,111 INFO L226 Difference]: Without dead ends: 289 [2024-10-12 19:24:25,117 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 108 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 19:24:25,122 INFO L432 NwaCegarLoop]: 434 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, 434 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 19:24:25,123 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 434 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-12 19:24:25,141 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 289 states. [2024-10-12 19:24:25,188 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 289 to 289. [2024-10-12 19:24:25,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 289 states, 225 states have (on average 1.5822222222222222) internal successors, (356), 226 states have internal predecessors, (356), 46 states have call successors, (46), 17 states have call predecessors, (46), 17 states have return successors, (45), 45 states have call predecessors, (45), 45 states have call successors, (45) [2024-10-12 19:24:25,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 289 states to 289 states and 447 transitions. [2024-10-12 19:24:25,203 INFO L78 Accepts]: Start accepts. Automaton has 289 states and 447 transitions. Word has length 88 [2024-10-12 19:24:25,204 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 19:24:25,205 INFO L471 AbstractCegarLoop]: Abstraction has 289 states and 447 transitions. [2024-10-12 19:24:25,205 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 23.0) internal successors, (46), 2 states have internal predecessors, (46), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-10-12 19:24:25,205 INFO L276 IsEmpty]: Start isEmpty. Operand 289 states and 447 transitions. [2024-10-12 19:24:25,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2024-10-12 19:24:25,209 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 19:24:25,209 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] [2024-10-12 19:24:25,230 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 19:24:25,410 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 19:24:25,411 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 19:24:25,412 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 19:24:25,413 INFO L85 PathProgramCache]: Analyzing trace with hash 49885632, now seen corresponding path program 1 times [2024-10-12 19:24:25,413 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 19:24:25,413 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [579129055] [2024-10-12 19:24:25,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 19:24:25,413 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 19:24:25,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:24:25,684 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-12 19:24:25,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:24:25,707 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-12 19:24:25,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:24:25,711 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-12 19:24:25,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:24:25,737 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-12 19:24:25,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:24:25,742 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-12 19:24:25,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:24:25,750 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-12 19:24:25,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:24:25,767 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-10-12 19:24:25,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:24:25,781 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-10-12 19:24:25,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:24:25,786 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-12 19:24:25,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:24:25,791 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-12 19:24:25,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:24:25,796 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-12 19:24:25,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:24:25,797 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-10-12 19:24:25,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:24:25,800 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 19:24:25,801 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 19:24:25,802 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [579129055] [2024-10-12 19:24:25,802 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [579129055] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-12 19:24:25,802 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1183074135] [2024-10-12 19:24:25,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 19:24:25,803 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-12 19:24:25,803 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 19:24:25,805 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 19:24:25,807 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 19:24:26,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:24:26,095 INFO L255 TraceCheckSpWp]: Trace formula consists of 959 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-12 19:24:26,099 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-12 19:24:26,120 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 19:24:26,120 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-12 19:24:26,121 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1183074135] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 19:24:26,121 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-12 19:24:26,121 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2024-10-12 19:24:26,121 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [718408307] [2024-10-12 19:24:26,121 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 19:24:26,125 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-12 19:24:26,125 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 19:24:26,126 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-12 19:24:26,126 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-10-12 19:24:26,126 INFO L87 Difference]: Start difference. First operand 289 states and 447 transitions. Second operand has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-10-12 19:24:26,192 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 19:24:26,193 INFO L93 Difference]: Finished difference Result 431 states and 653 transitions. [2024-10-12 19:24:26,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-12 19:24:26,194 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 89 [2024-10-12 19:24:26,194 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 19:24:26,197 INFO L225 Difference]: With dead ends: 431 [2024-10-12 19:24:26,197 INFO L226 Difference]: Without dead ends: 291 [2024-10-12 19:24:26,198 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 19:24:26,199 INFO L432 NwaCegarLoop]: 431 mSDtfsCounter, 0 mSDsluCounter, 430 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 861 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 19:24:26,200 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 861 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-12 19:24:26,205 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 291 states. [2024-10-12 19:24:26,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 291 to 291. [2024-10-12 19:24:26,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 291 states, 227 states have (on average 1.577092511013216) internal successors, (358), 228 states have internal predecessors, (358), 46 states have call successors, (46), 17 states have call predecessors, (46), 17 states have return successors, (45), 45 states have call predecessors, (45), 45 states have call successors, (45) [2024-10-12 19:24:26,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 291 states to 291 states and 449 transitions. [2024-10-12 19:24:26,235 INFO L78 Accepts]: Start accepts. Automaton has 291 states and 449 transitions. Word has length 89 [2024-10-12 19:24:26,235 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 19:24:26,236 INFO L471 AbstractCegarLoop]: Abstraction has 291 states and 449 transitions. [2024-10-12 19:24:26,236 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-10-12 19:24:26,236 INFO L276 IsEmpty]: Start isEmpty. Operand 291 states and 449 transitions. [2024-10-12 19:24:26,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2024-10-12 19:24:26,241 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 19:24:26,241 INFO L215 NwaCegarLoop]: trace histogram [3, 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 19:24:26,263 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-10-12 19:24:26,442 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 19:24:26,442 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 19:24:26,443 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 19:24:26,443 INFO L85 PathProgramCache]: Analyzing trace with hash -1195494754, now seen corresponding path program 1 times [2024-10-12 19:24:26,443 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 19:24:26,443 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1391210749] [2024-10-12 19:24:26,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 19:24:26,444 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 19:24:26,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:24:26,646 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-12 19:24:26,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:24:26,657 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-12 19:24:26,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:24:26,660 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-12 19:24:26,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:24:26,681 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-12 19:24:26,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:24:26,686 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-12 19:24:26,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:24:26,688 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-12 19:24:26,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:24:26,706 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-12 19:24:26,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:24:26,721 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-10-12 19:24:26,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:24:26,723 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-10-12 19:24:26,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:24:26,729 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-10-12 19:24:26,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:24:26,738 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-10-12 19:24:26,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:24:26,740 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-10-12 19:24:26,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:24:26,744 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2024-10-12 19:24:26,746 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 19:24:26,746 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1391210749] [2024-10-12 19:24:26,746 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1391210749] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-12 19:24:26,746 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1581906570] [2024-10-12 19:24:26,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 19:24:26,747 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-12 19:24:26,748 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 19:24:26,751 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 19:24:26,753 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 19:24:27,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:24:27,038 INFO L255 TraceCheckSpWp]: Trace formula consists of 983 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-12 19:24:27,047 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-12 19:24:27,074 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-10-12 19:24:27,074 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-12 19:24:27,075 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1581906570] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 19:24:27,075 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-12 19:24:27,075 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2024-10-12 19:24:27,075 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1921809988] [2024-10-12 19:24:27,075 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 19:24:27,076 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-12 19:24:27,076 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 19:24:27,078 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-12 19:24:27,078 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-10-12 19:24:27,079 INFO L87 Difference]: Start difference. First operand 291 states and 449 transitions. Second operand has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-10-12 19:24:27,145 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 19:24:27,145 INFO L93 Difference]: Finished difference Result 616 states and 964 transitions. [2024-10-12 19:24:27,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-12 19:24:27,146 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 96 [2024-10-12 19:24:27,146 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 19:24:27,149 INFO L225 Difference]: With dead ends: 616 [2024-10-12 19:24:27,149 INFO L226 Difference]: Without dead ends: 347 [2024-10-12 19:24:27,153 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 123 GetRequests, 115 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 19:24:27,154 INFO L432 NwaCegarLoop]: 443 mSDtfsCounter, 109 mSDsluCounter, 386 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 124 SdHoareTripleChecker+Valid, 829 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-12 19:24:27,155 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [124 Valid, 829 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-12 19:24:27,156 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 347 states. [2024-10-12 19:24:27,188 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 347 to 342. [2024-10-12 19:24:27,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 342 states, 267 states have (on average 1.591760299625468) internal successors, (425), 268 states have internal predecessors, (425), 57 states have call successors, (57), 17 states have call predecessors, (57), 17 states have return successors, (56), 56 states have call predecessors, (56), 56 states have call successors, (56) [2024-10-12 19:24:27,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 342 states to 342 states and 538 transitions. [2024-10-12 19:24:27,193 INFO L78 Accepts]: Start accepts. Automaton has 342 states and 538 transitions. Word has length 96 [2024-10-12 19:24:27,194 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 19:24:27,195 INFO L471 AbstractCegarLoop]: Abstraction has 342 states and 538 transitions. [2024-10-12 19:24:27,195 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-10-12 19:24:27,195 INFO L276 IsEmpty]: Start isEmpty. Operand 342 states and 538 transitions. [2024-10-12 19:24:27,197 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2024-10-12 19:24:27,198 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 19:24:27,199 INFO L215 NwaCegarLoop]: trace histogram [3, 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, 1] [2024-10-12 19:24:27,219 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-10-12 19:24:27,399 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 19:24:27,400 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 19:24:27,400 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 19:24:27,400 INFO L85 PathProgramCache]: Analyzing trace with hash 1633248361, now seen corresponding path program 1 times [2024-10-12 19:24:27,401 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 19:24:27,401 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1501170169] [2024-10-12 19:24:27,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 19:24:27,401 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 19:24:27,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:24:27,568 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-12 19:24:27,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:24:27,579 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-12 19:24:27,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:24:27,583 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-12 19:24:27,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:24:27,602 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-12 19:24:27,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:24:27,606 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-12 19:24:27,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:24:27,609 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-12 19:24:27,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:24:27,640 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-12 19:24:27,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:24:27,652 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-12 19:24:27,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:24:27,656 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-10-12 19:24:27,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:24:27,658 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-10-12 19:24:27,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:24:27,661 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-10-12 19:24:27,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:24:27,664 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-10-12 19:24:27,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:24:27,667 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2024-10-12 19:24:27,668 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 19:24:27,668 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1501170169] [2024-10-12 19:24:27,668 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1501170169] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-12 19:24:27,668 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [431577809] [2024-10-12 19:24:27,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 19:24:27,669 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-12 19:24:27,669 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 19:24:27,671 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 19:24:27,672 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 19:24:27,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:24:27,938 INFO L255 TraceCheckSpWp]: Trace formula consists of 988 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-10-12 19:24:27,942 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-12 19:24:28,019 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-10-12 19:24:28,020 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-12 19:24:28,020 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [431577809] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 19:24:28,020 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-12 19:24:28,020 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 12 [2024-10-12 19:24:28,021 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [943757787] [2024-10-12 19:24:28,021 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 19:24:28,021 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-12 19:24:28,021 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 19:24:28,022 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-12 19:24:28,022 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2024-10-12 19:24:28,022 INFO L87 Difference]: Start difference. First operand 342 states and 538 transitions. Second operand has 5 states, 4 states have (on average 15.75) internal successors, (63), 5 states have internal predecessors, (63), 3 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) [2024-10-12 19:24:28,131 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 19:24:28,132 INFO L93 Difference]: Finished difference Result 679 states and 1070 transitions. [2024-10-12 19:24:28,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-12 19:24:28,132 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 15.75) internal successors, (63), 5 states have internal predecessors, (63), 3 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) Word has length 97 [2024-10-12 19:24:28,133 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 19:24:28,138 INFO L225 Difference]: With dead ends: 679 [2024-10-12 19:24:28,138 INFO L226 Difference]: Without dead ends: 344 [2024-10-12 19:24:28,140 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 124 GetRequests, 114 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 19:24:28,141 INFO L432 NwaCegarLoop]: 423 mSDtfsCounter, 2 mSDsluCounter, 1258 mSDsCounter, 0 mSdLazyCounter, 101 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 1681 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 19:24:28,142 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 1681 Invalid, 101 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 101 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-12 19:24:28,143 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 344 states. [2024-10-12 19:24:28,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 344 to 344. [2024-10-12 19:24:28,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 344 states, 268 states have (on average 1.5895522388059702) internal successors, (426), 270 states have internal predecessors, (426), 57 states have call successors, (57), 17 states have call predecessors, (57), 18 states have return successors, (58), 56 states have call predecessors, (58), 56 states have call successors, (58) [2024-10-12 19:24:28,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 344 states to 344 states and 541 transitions. [2024-10-12 19:24:28,168 INFO L78 Accepts]: Start accepts. Automaton has 344 states and 541 transitions. Word has length 97 [2024-10-12 19:24:28,168 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 19:24:28,168 INFO L471 AbstractCegarLoop]: Abstraction has 344 states and 541 transitions. [2024-10-12 19:24:28,168 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 15.75) internal successors, (63), 5 states have internal predecessors, (63), 3 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) [2024-10-12 19:24:28,168 INFO L276 IsEmpty]: Start isEmpty. Operand 344 states and 541 transitions. [2024-10-12 19:24:28,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2024-10-12 19:24:28,171 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 19:24:28,171 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 19:24:28,189 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-10-12 19:24:28,372 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 19:24:28,372 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 19:24:28,372 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 19:24:28,373 INFO L85 PathProgramCache]: Analyzing trace with hash -188497324, now seen corresponding path program 1 times [2024-10-12 19:24:28,373 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 19:24:28,373 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [635203620] [2024-10-12 19:24:28,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 19:24:28,373 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 19:24:28,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:24:28,501 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-12 19:24:28,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:24:28,513 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-12 19:24:28,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:24:28,517 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-12 19:24:28,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:24:28,539 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-12 19:24:28,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:24:28,562 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-10-12 19:24:28,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:24:28,566 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-10-12 19:24:28,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:24:28,580 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-10-12 19:24:28,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:24:28,594 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-12 19:24:28,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:24:28,596 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-10-12 19:24:28,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:24:28,598 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-10-12 19:24:28,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:24:28,600 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-10-12 19:24:28,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:24:28,601 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-12 19:24:28,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:24:28,603 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2024-10-12 19:24:28,603 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 19:24:28,603 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [635203620] [2024-10-12 19:24:28,603 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [635203620] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-12 19:24:28,603 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2037648844] [2024-10-12 19:24:28,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 19:24:28,604 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-12 19:24:28,604 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 19:24:28,605 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 19:24:28,621 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 19:24:28,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:24:28,915 INFO L255 TraceCheckSpWp]: Trace formula consists of 989 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-10-12 19:24:28,920 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-12 19:24:28,980 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-10-12 19:24:28,980 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-12 19:24:28,980 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2037648844] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 19:24:28,981 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-12 19:24:28,981 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [12] total 15 [2024-10-12 19:24:28,981 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1728378772] [2024-10-12 19:24:28,981 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 19:24:28,982 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-12 19:24:28,982 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 19:24:28,983 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-12 19:24:28,983 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=180, Unknown=0, NotChecked=0, Total=210 [2024-10-12 19:24:28,983 INFO L87 Difference]: Start difference. First operand 344 states and 541 transitions. Second operand has 5 states, 5 states have (on average 13.0) internal successors, (65), 5 states have internal predecessors, (65), 3 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2024-10-12 19:24:29,091 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 19:24:29,091 INFO L93 Difference]: Finished difference Result 681 states and 1075 transitions. [2024-10-12 19:24:29,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-12 19:24:29,093 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 5 states have internal predecessors, (65), 3 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 98 [2024-10-12 19:24:29,094 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 19:24:29,097 INFO L225 Difference]: With dead ends: 681 [2024-10-12 19:24:29,097 INFO L226 Difference]: Without dead ends: 346 [2024-10-12 19:24:29,098 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 114 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 19:24:29,100 INFO L432 NwaCegarLoop]: 421 mSDtfsCounter, 2 mSDsluCounter, 1246 mSDsCounter, 0 mSdLazyCounter, 113 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 1667 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 19:24:29,100 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 1667 Invalid, 113 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 113 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-12 19:24:29,101 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 346 states. [2024-10-12 19:24:29,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 346 to 346. [2024-10-12 19:24:29,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 346 states, 269 states have (on average 1.587360594795539) internal successors, (427), 272 states have internal predecessors, (427), 57 states have call successors, (57), 17 states have call predecessors, (57), 19 states have return successors, (63), 56 states have call predecessors, (63), 56 states have call successors, (63) [2024-10-12 19:24:29,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 346 states to 346 states and 547 transitions. [2024-10-12 19:24:29,126 INFO L78 Accepts]: Start accepts. Automaton has 346 states and 547 transitions. Word has length 98 [2024-10-12 19:24:29,126 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 19:24:29,126 INFO L471 AbstractCegarLoop]: Abstraction has 346 states and 547 transitions. [2024-10-12 19:24:29,127 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 5 states have internal predecessors, (65), 3 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2024-10-12 19:24:29,127 INFO L276 IsEmpty]: Start isEmpty. Operand 346 states and 547 transitions. [2024-10-12 19:24:29,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2024-10-12 19:24:29,129 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 19:24:29,129 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, 1, 1] [2024-10-12 19:24:29,147 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 19:24:29,333 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 19:24:29,334 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 19:24:29,334 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 19:24:29,335 INFO L85 PathProgramCache]: Analyzing trace with hash -918403521, now seen corresponding path program 1 times [2024-10-12 19:24:29,335 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 19:24:29,335 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1838134228] [2024-10-12 19:24:29,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 19:24:29,335 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 19:24:29,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:24:29,463 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-12 19:24:29,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:24:29,473 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-12 19:24:29,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:24:29,476 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-12 19:24:29,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:24:29,478 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-12 19:24:29,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:24:29,480 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-12 19:24:29,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:24:29,499 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-10-12 19:24:29,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:24:29,511 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-10-12 19:24:29,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:24:29,523 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-10-12 19:24:29,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:24:29,526 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-10-12 19:24:29,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:24:29,527 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-10-12 19:24:29,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:24:29,529 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-12 19:24:29,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:24:29,530 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-10-12 19:24:29,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:24:29,532 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2024-10-12 19:24:29,532 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 19:24:29,532 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1838134228] [2024-10-12 19:24:29,532 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1838134228] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 19:24:29,532 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 19:24:29,533 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-10-12 19:24:29,533 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1082900037] [2024-10-12 19:24:29,533 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 19:24:29,533 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-12 19:24:29,533 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 19:24:29,534 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-12 19:24:29,534 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-10-12 19:24:29,534 INFO L87 Difference]: Start difference. First operand 346 states and 547 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, (14), 6 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) [2024-10-12 19:24:31,576 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 19:24:31,576 INFO L93 Difference]: Finished difference Result 832 states and 1333 transitions. [2024-10-12 19:24:31,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-10-12 19:24:31,577 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, (14), 6 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) Word has length 99 [2024-10-12 19:24:31,577 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 19:24:31,581 INFO L225 Difference]: With dead ends: 832 [2024-10-12 19:24:31,581 INFO L226 Difference]: Without dead ends: 505 [2024-10-12 19:24:31,583 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 27 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 19:24:31,583 INFO L432 NwaCegarLoop]: 167 mSDtfsCounter, 993 mSDsluCounter, 849 mSDsCounter, 0 mSdLazyCounter, 2405 mSolverCounterSat, 303 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 994 SdHoareTripleChecker+Valid, 1016 SdHoareTripleChecker+Invalid, 2708 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 303 IncrementalHoareTripleChecker+Valid, 2405 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-10-12 19:24:31,584 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [994 Valid, 1016 Invalid, 2708 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [303 Valid, 2405 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-10-12 19:24:31,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 505 states. [2024-10-12 19:24:31,649 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 505 to 346. [2024-10-12 19:24:31,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 346 states, 269 states have (on average 1.587360594795539) internal successors, (427), 272 states have internal predecessors, (427), 57 states have call successors, (57), 17 states have call predecessors, (57), 19 states have return successors, (62), 56 states have call predecessors, (62), 56 states have call successors, (62) [2024-10-12 19:24:31,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 346 states to 346 states and 546 transitions. [2024-10-12 19:24:31,654 INFO L78 Accepts]: Start accepts. Automaton has 346 states and 546 transitions. Word has length 99 [2024-10-12 19:24:31,655 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 19:24:31,655 INFO L471 AbstractCegarLoop]: Abstraction has 346 states and 546 transitions. [2024-10-12 19:24:31,655 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, (14), 6 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) [2024-10-12 19:24:31,655 INFO L276 IsEmpty]: Start isEmpty. Operand 346 states and 546 transitions. [2024-10-12 19:24:31,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2024-10-12 19:24:31,657 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 19:24:31,658 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 19:24:31,658 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-12 19:24:31,658 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 19:24:31,658 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 19:24:31,658 INFO L85 PathProgramCache]: Analyzing trace with hash -2078415608, now seen corresponding path program 2 times [2024-10-12 19:24:31,659 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 19:24:31,659 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1382736715] [2024-10-12 19:24:31,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 19:24:31,659 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 19:24:31,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:24:31,785 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-12 19:24:31,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:24:31,797 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-12 19:24:31,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:24:31,802 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-12 19:24:31,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:24:31,805 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-12 19:24:31,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:24:31,807 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-12 19:24:31,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:24:31,830 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-12 19:24:31,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:24:31,842 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-10-12 19:24:31,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:24:31,854 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-10-12 19:24:31,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:24:31,856 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-12 19:24:31,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:24:31,859 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-10-12 19:24:31,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:24:31,860 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-10-12 19:24:31,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:24:31,862 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-10-12 19:24:31,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:24:31,863 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2024-10-12 19:24:31,863 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 19:24:31,863 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1382736715] [2024-10-12 19:24:31,864 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1382736715] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 19:24:31,864 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 19:24:31,864 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-10-12 19:24:31,864 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [976874346] [2024-10-12 19:24:31,864 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 19:24:31,865 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-12 19:24:31,865 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 19:24:31,865 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-12 19:24:31,866 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-10-12 19:24:31,866 INFO L87 Difference]: Start difference. First operand 346 states and 546 transitions. Second operand has 9 states, 8 states have (on average 7.75) internal successors, (62), 5 states have internal predecessors, (62), 3 states have call successors, (14), 6 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) [2024-10-12 19:24:33,815 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 19:24:33,815 INFO L93 Difference]: Finished difference Result 834 states and 1336 transitions. [2024-10-12 19:24:33,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-10-12 19:24:33,816 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 7.75) internal successors, (62), 5 states have internal predecessors, (62), 3 states have call successors, (14), 6 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) Word has length 100 [2024-10-12 19:24:33,816 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 19:24:33,820 INFO L225 Difference]: With dead ends: 834 [2024-10-12 19:24:33,821 INFO L226 Difference]: Without dead ends: 507 [2024-10-12 19:24:33,822 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 27 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 19:24:33,823 INFO L432 NwaCegarLoop]: 165 mSDtfsCounter, 985 mSDsluCounter, 849 mSDsCounter, 0 mSdLazyCounter, 2431 mSolverCounterSat, 309 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 987 SdHoareTripleChecker+Valid, 1014 SdHoareTripleChecker+Invalid, 2740 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 309 IncrementalHoareTripleChecker+Valid, 2431 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-10-12 19:24:33,824 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [987 Valid, 1014 Invalid, 2740 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [309 Valid, 2431 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-10-12 19:24:33,825 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 507 states. [2024-10-12 19:24:33,856 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 507 to 348. [2024-10-12 19:24:33,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 348 states, 270 states have (on average 1.5851851851851853) internal successors, (428), 274 states have internal predecessors, (428), 57 states have call successors, (57), 17 states have call predecessors, (57), 20 states have return successors, (64), 56 states have call predecessors, (64), 56 states have call successors, (64) [2024-10-12 19:24:33,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 348 states to 348 states and 549 transitions. [2024-10-12 19:24:33,860 INFO L78 Accepts]: Start accepts. Automaton has 348 states and 549 transitions. Word has length 100 [2024-10-12 19:24:33,860 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 19:24:33,860 INFO L471 AbstractCegarLoop]: Abstraction has 348 states and 549 transitions. [2024-10-12 19:24:33,861 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 7.75) internal successors, (62), 5 states have internal predecessors, (62), 3 states have call successors, (14), 6 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) [2024-10-12 19:24:33,861 INFO L276 IsEmpty]: Start isEmpty. Operand 348 states and 549 transitions. [2024-10-12 19:24:33,863 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-10-12 19:24:33,863 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 19:24:33,864 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, 1, 1, 1, 1] [2024-10-12 19:24:33,864 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-12 19:24:33,864 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 19:24:33,864 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 19:24:33,864 INFO L85 PathProgramCache]: Analyzing trace with hash -1108276250, now seen corresponding path program 1 times [2024-10-12 19:24:33,865 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 19:24:33,865 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1602785093] [2024-10-12 19:24:33,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 19:24:33,865 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 19:24:33,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:24:34,006 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-12 19:24:34,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:24:34,016 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-12 19:24:34,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:24:34,019 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-12 19:24:34,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:24:34,021 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-12 19:24:34,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:24:34,024 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-12 19:24:34,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:24:34,042 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-12 19:24:34,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:24:34,055 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-10-12 19:24:34,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:24:34,066 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-10-12 19:24:34,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:24:34,069 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-12 19:24:34,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:24:34,071 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-12 19:24:34,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:24:34,073 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-12 19:24:34,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:24:34,074 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-12 19:24:34,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:24:34,076 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2024-10-12 19:24:34,076 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 19:24:34,076 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1602785093] [2024-10-12 19:24:34,076 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1602785093] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 19:24:34,077 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 19:24:34,077 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-10-12 19:24:34,077 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1808272528] [2024-10-12 19:24:34,077 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 19:24:34,077 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-12 19:24:34,078 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 19:24:34,078 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-12 19:24:34,078 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-10-12 19:24:34,079 INFO L87 Difference]: Start difference. First operand 348 states and 549 transitions. Second operand has 9 states, 8 states have (on average 7.875) internal successors, (63), 5 states have internal predecessors, (63), 3 states have call successors, (14), 6 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) [2024-10-12 19:24:35,918 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 19:24:35,918 INFO L93 Difference]: Finished difference Result 834 states and 1335 transitions. [2024-10-12 19:24:35,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-10-12 19:24:35,919 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 7.875) internal successors, (63), 5 states have internal predecessors, (63), 3 states have call successors, (14), 6 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) Word has length 101 [2024-10-12 19:24:35,919 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 19:24:35,922 INFO L225 Difference]: With dead ends: 834 [2024-10-12 19:24:35,922 INFO L226 Difference]: Without dead ends: 507 [2024-10-12 19:24:35,924 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 28 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 19:24:35,924 INFO L432 NwaCegarLoop]: 161 mSDtfsCounter, 994 mSDsluCounter, 849 mSDsCounter, 0 mSdLazyCounter, 2373 mSolverCounterSat, 319 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 995 SdHoareTripleChecker+Valid, 1010 SdHoareTripleChecker+Invalid, 2692 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 319 IncrementalHoareTripleChecker+Valid, 2373 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-10-12 19:24:35,924 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [995 Valid, 1010 Invalid, 2692 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [319 Valid, 2373 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-10-12 19:24:35,925 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 507 states. [2024-10-12 19:24:35,947 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 507 to 348. [2024-10-12 19:24:35,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 348 states, 270 states have (on average 1.5851851851851853) internal successors, (428), 274 states have internal predecessors, (428), 57 states have call successors, (57), 17 states have call predecessors, (57), 20 states have return successors, (64), 56 states have call predecessors, (64), 56 states have call successors, (64) [2024-10-12 19:24:35,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 348 states to 348 states and 549 transitions. [2024-10-12 19:24:35,950 INFO L78 Accepts]: Start accepts. Automaton has 348 states and 549 transitions. Word has length 101 [2024-10-12 19:24:35,950 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 19:24:35,951 INFO L471 AbstractCegarLoop]: Abstraction has 348 states and 549 transitions. [2024-10-12 19:24:35,951 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 7.875) internal successors, (63), 5 states have internal predecessors, (63), 3 states have call successors, (14), 6 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) [2024-10-12 19:24:35,951 INFO L276 IsEmpty]: Start isEmpty. Operand 348 states and 549 transitions. [2024-10-12 19:24:35,952 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-10-12 19:24:35,952 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 19:24:35,953 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, 1, 1, 1, 1] [2024-10-12 19:24:35,953 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-12 19:24:35,953 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 19:24:35,953 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 19:24:35,953 INFO L85 PathProgramCache]: Analyzing trace with hash -615650076, now seen corresponding path program 1 times [2024-10-12 19:24:35,954 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 19:24:35,954 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [528988902] [2024-10-12 19:24:35,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 19:24:35,954 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 19:24:35,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:24:36,063 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-12 19:24:36,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:24:36,073 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-12 19:24:36,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:24:36,077 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-12 19:24:36,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:24:36,079 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-12 19:24:36,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:24:36,083 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-12 19:24:36,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:24:36,105 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-12 19:24:36,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:24:36,141 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-10-12 19:24:36,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:24:36,155 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-10-12 19:24:36,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:24:36,157 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-12 19:24:36,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:24:36,159 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-12 19:24:36,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:24:36,160 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-12 19:24:36,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:24:36,162 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-12 19:24:36,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:24:36,163 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2024-10-12 19:24:36,163 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 19:24:36,163 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [528988902] [2024-10-12 19:24:36,164 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [528988902] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 19:24:36,164 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 19:24:36,164 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-10-12 19:24:36,164 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1227172146] [2024-10-12 19:24:36,164 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 19:24:36,164 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-10-12 19:24:36,164 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 19:24:36,165 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-10-12 19:24:36,165 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2024-10-12 19:24:36,166 INFO L87 Difference]: Start difference. First operand 348 states and 549 transitions. Second operand has 12 states, 11 states have (on average 6.0) internal successors, (66), 8 states have internal predecessors, (66), 4 states have call successors, (14), 6 states have call predecessors, (14), 3 states have return successors, (12), 3 states have call predecessors, (12), 4 states have call successors, (12) [2024-10-12 19:24:38,444 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 19:24:38,444 INFO L93 Difference]: Finished difference Result 832 states and 1330 transitions. [2024-10-12 19:24:38,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-12 19:24:38,444 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 6.0) internal successors, (66), 8 states have internal predecessors, (66), 4 states have call successors, (14), 6 states have call predecessors, (14), 3 states have return successors, (12), 3 states have call predecessors, (12), 4 states have call successors, (12) Word has length 101 [2024-10-12 19:24:38,445 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 19:24:38,448 INFO L225 Difference]: With dead ends: 832 [2024-10-12 19:24:38,448 INFO L226 Difference]: Without dead ends: 507 [2024-10-12 19:24:38,450 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=102, Invalid=404, Unknown=0, NotChecked=0, Total=506 [2024-10-12 19:24:38,450 INFO L432 NwaCegarLoop]: 164 mSDtfsCounter, 981 mSDsluCounter, 1244 mSDsCounter, 0 mSdLazyCounter, 4057 mSolverCounterSat, 305 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 982 SdHoareTripleChecker+Valid, 1408 SdHoareTripleChecker+Invalid, 4362 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 305 IncrementalHoareTripleChecker+Valid, 4057 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-10-12 19:24:38,450 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [982 Valid, 1408 Invalid, 4362 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [305 Valid, 4057 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-10-12 19:24:38,451 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 507 states. [2024-10-12 19:24:38,474 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 507 to 348. [2024-10-12 19:24:38,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 348 states, 270 states have (on average 1.5851851851851853) internal successors, (428), 274 states have internal predecessors, (428), 57 states have call successors, (57), 17 states have call predecessors, (57), 20 states have return successors, (63), 56 states have call predecessors, (63), 56 states have call successors, (63) [2024-10-12 19:24:38,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 348 states to 348 states and 548 transitions. [2024-10-12 19:24:38,478 INFO L78 Accepts]: Start accepts. Automaton has 348 states and 548 transitions. Word has length 101 [2024-10-12 19:24:38,478 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 19:24:38,478 INFO L471 AbstractCegarLoop]: Abstraction has 348 states and 548 transitions. [2024-10-12 19:24:38,478 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 6.0) internal successors, (66), 8 states have internal predecessors, (66), 4 states have call successors, (14), 6 states have call predecessors, (14), 3 states have return successors, (12), 3 states have call predecessors, (12), 4 states have call successors, (12) [2024-10-12 19:24:38,478 INFO L276 IsEmpty]: Start isEmpty. Operand 348 states and 548 transitions. [2024-10-12 19:24:38,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2024-10-12 19:24:38,480 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 19:24:38,480 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 19:24:38,480 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-12 19:24:38,480 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 19:24:38,481 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 19:24:38,481 INFO L85 PathProgramCache]: Analyzing trace with hash 2062332213, now seen corresponding path program 2 times [2024-10-12 19:24:38,481 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 19:24:38,481 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [838297564] [2024-10-12 19:24:38,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 19:24:38,481 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 19:24:38,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:24:38,603 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-12 19:24:38,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:24:38,612 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-12 19:24:38,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:24:38,615 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-12 19:24:38,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:24:38,617 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-12 19:24:38,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:24:38,619 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-12 19:24:38,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:24:38,638 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-12 19:24:38,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:24:38,676 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-12 19:24:38,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:24:38,690 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-10-12 19:24:38,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:24:38,692 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-10-12 19:24:38,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:24:38,694 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-10-12 19:24:38,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:24:38,695 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-10-12 19:24:38,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:24:38,696 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-10-12 19:24:38,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:24:38,697 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2024-10-12 19:24:38,697 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 19:24:38,698 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [838297564] [2024-10-12 19:24:38,698 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [838297564] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 19:24:38,698 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 19:24:38,698 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-10-12 19:24:38,698 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [111360775] [2024-10-12 19:24:38,698 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 19:24:38,698 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-10-12 19:24:38,698 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 19:24:38,699 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-10-12 19:24:38,699 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2024-10-12 19:24:38,699 INFO L87 Difference]: Start difference. First operand 348 states and 548 transitions. Second operand has 12 states, 11 states have (on average 6.090909090909091) internal successors, (67), 8 states have internal predecessors, (67), 4 states have call successors, (14), 6 states have call predecessors, (14), 3 states have return successors, (12), 3 states have call predecessors, (12), 4 states have call successors, (12) [2024-10-12 19:24:41,054 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 19:24:41,054 INFO L93 Difference]: Finished difference Result 834 states and 1336 transitions. [2024-10-12 19:24:41,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-12 19:24:41,055 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 6.090909090909091) internal successors, (67), 8 states have internal predecessors, (67), 4 states have call successors, (14), 6 states have call predecessors, (14), 3 states have return successors, (12), 3 states have call predecessors, (12), 4 states have call successors, (12) Word has length 102 [2024-10-12 19:24:41,055 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 19:24:41,059 INFO L225 Difference]: With dead ends: 834 [2024-10-12 19:24:41,059 INFO L226 Difference]: Without dead ends: 509 [2024-10-12 19:24:41,060 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 27 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 19:24:41,061 INFO L432 NwaCegarLoop]: 164 mSDtfsCounter, 973 mSDsluCounter, 1244 mSDsCounter, 0 mSdLazyCounter, 4077 mSolverCounterSat, 304 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 974 SdHoareTripleChecker+Valid, 1408 SdHoareTripleChecker+Invalid, 4381 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 304 IncrementalHoareTripleChecker+Valid, 4077 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-10-12 19:24:41,061 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [974 Valid, 1408 Invalid, 4381 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [304 Valid, 4077 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-10-12 19:24:41,062 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 509 states. [2024-10-12 19:24:41,084 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 509 to 350. [2024-10-12 19:24:41,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 350 states, 271 states have (on average 1.5830258302583027) internal successors, (429), 276 states have internal predecessors, (429), 57 states have call successors, (57), 17 states have call predecessors, (57), 21 states have return successors, (68), 56 states have call predecessors, (68), 56 states have call successors, (68) [2024-10-12 19:24:41,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 350 states to 350 states and 554 transitions. [2024-10-12 19:24:41,087 INFO L78 Accepts]: Start accepts. Automaton has 350 states and 554 transitions. Word has length 102 [2024-10-12 19:24:41,087 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 19:24:41,087 INFO L471 AbstractCegarLoop]: Abstraction has 350 states and 554 transitions. [2024-10-12 19:24:41,088 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 6.090909090909091) internal successors, (67), 8 states have internal predecessors, (67), 4 states have call successors, (14), 6 states have call predecessors, (14), 3 states have return successors, (12), 3 states have call predecessors, (12), 4 states have call successors, (12) [2024-10-12 19:24:41,088 INFO L276 IsEmpty]: Start isEmpty. Operand 350 states and 554 transitions. [2024-10-12 19:24:41,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2024-10-12 19:24:41,089 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 19:24:41,089 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, 1, 1, 1, 1, 1, 1] [2024-10-12 19:24:41,090 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-12 19:24:41,090 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 19:24:41,090 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 19:24:41,090 INFO L85 PathProgramCache]: Analyzing trace with hash -1863054263, now seen corresponding path program 1 times [2024-10-12 19:24:41,090 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 19:24:41,090 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1206774319] [2024-10-12 19:24:41,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 19:24:41,091 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 19:24:41,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:24:41,220 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-12 19:24:41,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:24:41,232 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-12 19:24:41,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:24:41,235 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-12 19:24:41,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:24:41,269 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-12 19:24:41,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:24:41,273 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-12 19:24:41,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:24:41,275 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-12 19:24:41,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:24:41,288 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-12 19:24:41,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:24:41,300 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-12 19:24:41,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:24:41,302 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-10-12 19:24:41,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:24:41,303 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-10-12 19:24:41,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:24:41,305 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-10-12 19:24:41,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:24:41,307 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2024-10-12 19:24:41,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:24:41,309 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2024-10-12 19:24:41,310 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 19:24:41,310 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1206774319] [2024-10-12 19:24:41,310 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1206774319] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-12 19:24:41,310 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1567317303] [2024-10-12 19:24:41,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 19:24:41,310 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-12 19:24:41,310 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 19:24:41,312 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 19:24:41,314 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 19:24:41,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:24:41,581 INFO L255 TraceCheckSpWp]: Trace formula consists of 994 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-12 19:24:41,585 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-12 19:24:41,628 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2024-10-12 19:24:41,631 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-12 19:24:41,752 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2024-10-12 19:24:41,752 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1567317303] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-12 19:24:41,752 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-12 19:24:41,753 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 4, 4] total 15 [2024-10-12 19:24:41,753 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [935295117] [2024-10-12 19:24:41,753 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-12 19:24:41,754 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-10-12 19:24:41,754 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 19:24:41,754 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-10-12 19:24:41,755 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=177, Unknown=0, NotChecked=0, Total=210 [2024-10-12 19:24:41,755 INFO L87 Difference]: Start difference. First operand 350 states and 554 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, (29), 6 states have call predecessors, (29), 3 states have return successors, (22), 3 states have call predecessors, (22), 4 states have call successors, (22) [2024-10-12 19:24:44,445 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 19:24:44,445 INFO L93 Difference]: Finished difference Result 1183 states and 1982 transitions. [2024-10-12 19:24:44,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-10-12 19:24:44,445 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, (29), 6 states have call predecessors, (29), 3 states have return successors, (22), 3 states have call predecessors, (22), 4 states have call successors, (22) Word has length 103 [2024-10-12 19:24:44,446 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 19:24:44,451 INFO L225 Difference]: With dead ends: 1183 [2024-10-12 19:24:44,451 INFO L226 Difference]: Without dead ends: 859 [2024-10-12 19:24:44,453 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 255 GetRequests, 225 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 149 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=164, Invalid=828, Unknown=0, NotChecked=0, Total=992 [2024-10-12 19:24:44,453 INFO L432 NwaCegarLoop]: 155 mSDtfsCounter, 1933 mSDsluCounter, 1496 mSDsCounter, 0 mSdLazyCounter, 4917 mSolverCounterSat, 610 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1950 SdHoareTripleChecker+Valid, 1651 SdHoareTripleChecker+Invalid, 5527 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 610 IncrementalHoareTripleChecker+Valid, 4917 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2024-10-12 19:24:44,453 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1950 Valid, 1651 Invalid, 5527 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [610 Valid, 4917 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2024-10-12 19:24:44,454 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 859 states. [2024-10-12 19:24:44,492 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 859 to 685. [2024-10-12 19:24:44,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 685 states, 542 states have (on average 1.6273062730627306) internal successors, (882), 547 states have internal predecessors, (882), 121 states have call successors, (121), 17 states have call predecessors, (121), 21 states have return successors, (142), 120 states have call predecessors, (142), 120 states have call successors, (142) [2024-10-12 19:24:44,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 685 states to 685 states and 1145 transitions. [2024-10-12 19:24:44,496 INFO L78 Accepts]: Start accepts. Automaton has 685 states and 1145 transitions. Word has length 103 [2024-10-12 19:24:44,497 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 19:24:44,497 INFO L471 AbstractCegarLoop]: Abstraction has 685 states and 1145 transitions. [2024-10-12 19:24:44,497 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, (29), 6 states have call predecessors, (29), 3 states have return successors, (22), 3 states have call predecessors, (22), 4 states have call successors, (22) [2024-10-12 19:24:44,497 INFO L276 IsEmpty]: Start isEmpty. Operand 685 states and 1145 transitions. [2024-10-12 19:24:44,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-10-12 19:24:44,500 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 19:24:44,500 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 19:24:44,519 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 19:24:44,701 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 19:24:44,701 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 19:24:44,702 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 19:24:44,702 INFO L85 PathProgramCache]: Analyzing trace with hash -1453271016, now seen corresponding path program 1 times [2024-10-12 19:24:44,702 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 19:24:44,702 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [788404827] [2024-10-12 19:24:44,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 19:24:44,702 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 19:24:44,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:24:44,757 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-12 19:24:44,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:24:44,768 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-12 19:24:44,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:24:44,771 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-12 19:24:44,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:24:44,773 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-12 19:24:44,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:24:44,775 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-12 19:24:44,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:24:44,777 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-12 19:24:44,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:24:44,785 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-10-12 19:24:44,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:24:44,796 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-10-12 19:24:44,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:24:44,798 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-12 19:24:44,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:24:44,803 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-12 19:24:44,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:24:44,805 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-12 19:24:44,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:24:44,806 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-10-12 19:24:44,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:24:44,807 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2024-10-12 19:24:44,807 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 19:24:44,808 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [788404827] [2024-10-12 19:24:44,808 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [788404827] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 19:24:44,808 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 19:24:44,808 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-12 19:24:44,808 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1642134199] [2024-10-12 19:24:44,808 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 19:24:44,809 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-12 19:24:44,809 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 19:24:44,809 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-12 19:24:44,810 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-12 19:24:44,810 INFO L87 Difference]: Start difference. First operand 685 states and 1145 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, (14), 6 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-10-12 19:24:46,174 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 19:24:46,174 INFO L93 Difference]: Finished difference Result 1778 states and 3041 transitions. [2024-10-12 19:24:46,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-12 19:24:46,175 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, (14), 6 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 107 [2024-10-12 19:24:46,175 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 19:24:46,182 INFO L225 Difference]: With dead ends: 1778 [2024-10-12 19:24:46,182 INFO L226 Difference]: Without dead ends: 1161 [2024-10-12 19:24:46,185 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 26 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 19:24:46,186 INFO L432 NwaCegarLoop]: 175 mSDtfsCounter, 1087 mSDsluCounter, 587 mSDsCounter, 0 mSdLazyCounter, 1423 mSolverCounterSat, 358 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1102 SdHoareTripleChecker+Valid, 762 SdHoareTripleChecker+Invalid, 1781 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 358 IncrementalHoareTripleChecker+Valid, 1423 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-10-12 19:24:46,186 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1102 Valid, 762 Invalid, 1781 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [358 Valid, 1423 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-10-12 19:24:46,188 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1161 states. [2024-10-12 19:24:46,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1161 to 997. [2024-10-12 19:24:46,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 997 states, 790 states have (on average 1.6379746835443039) internal successors, (1294), 795 states have internal predecessors, (1294), 185 states have call successors, (185), 17 states have call predecessors, (185), 21 states have return successors, (216), 184 states have call predecessors, (216), 184 states have call successors, (216) [2024-10-12 19:24:46,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 997 states to 997 states and 1695 transitions. [2024-10-12 19:24:46,243 INFO L78 Accepts]: Start accepts. Automaton has 997 states and 1695 transitions. Word has length 107 [2024-10-12 19:24:46,243 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 19:24:46,243 INFO L471 AbstractCegarLoop]: Abstraction has 997 states and 1695 transitions. [2024-10-12 19:24:46,243 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, (14), 6 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-10-12 19:24:46,244 INFO L276 IsEmpty]: Start isEmpty. Operand 997 states and 1695 transitions. [2024-10-12 19:24:46,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-10-12 19:24:46,248 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 19:24:46,248 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 19:24:46,249 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-10-12 19:24:46,249 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 19:24:46,249 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 19:24:46,249 INFO L85 PathProgramCache]: Analyzing trace with hash 1703025072, now seen corresponding path program 1 times [2024-10-12 19:24:46,249 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 19:24:46,250 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1629055464] [2024-10-12 19:24:46,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 19:24:46,250 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 19:24:46,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:24:46,303 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-12 19:24:46,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:24:46,313 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-12 19:24:46,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:24:46,316 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-12 19:24:46,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:24:46,318 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-12 19:24:46,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:24:46,324 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-12 19:24:46,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:24:46,326 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-12 19:24:46,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:24:46,347 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-12 19:24:46,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:24:46,365 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-10-12 19:24:46,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:24:46,368 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-10-12 19:24:46,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:24:46,369 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-10-12 19:24:46,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:24:46,371 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-10-12 19:24:46,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:24:46,372 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-10-12 19:24:46,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:24:46,373 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2024-10-12 19:24:46,374 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 19:24:46,374 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1629055464] [2024-10-12 19:24:46,374 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1629055464] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 19:24:46,374 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 19:24:46,374 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-12 19:24:46,374 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1428711205] [2024-10-12 19:24:46,374 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 19:24:46,376 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-12 19:24:46,376 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 19:24:46,376 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-12 19:24:46,377 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-12 19:24:46,377 INFO L87 Difference]: Start difference. First operand 997 states and 1695 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, (14), 6 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-10-12 19:24:47,653 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 19:24:47,653 INFO L93 Difference]: Finished difference Result 2547 states and 4389 transitions. [2024-10-12 19:24:47,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-12 19:24:47,654 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, (14), 6 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 108 [2024-10-12 19:24:47,654 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 19:24:47,664 INFO L225 Difference]: With dead ends: 2547 [2024-10-12 19:24:47,664 INFO L226 Difference]: Without dead ends: 1668 [2024-10-12 19:24:47,668 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-10-12 19:24:47,669 INFO L432 NwaCegarLoop]: 168 mSDtfsCounter, 1092 mSDsluCounter, 577 mSDsCounter, 0 mSdLazyCounter, 1395 mSolverCounterSat, 368 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1107 SdHoareTripleChecker+Valid, 745 SdHoareTripleChecker+Invalid, 1763 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 368 IncrementalHoareTripleChecker+Valid, 1395 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-10-12 19:24:47,669 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1107 Valid, 745 Invalid, 1763 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [368 Valid, 1395 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-10-12 19:24:47,671 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1668 states. [2024-10-12 19:24:47,735 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1668 to 1504. [2024-10-12 19:24:47,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1504 states, 1202 states have (on average 1.642262895174709) internal successors, (1974), 1207 states have internal predecessors, (1974), 280 states have call successors, (280), 17 states have call predecessors, (280), 21 states have return successors, (311), 279 states have call predecessors, (311), 279 states have call successors, (311) [2024-10-12 19:24:47,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1504 states to 1504 states and 2565 transitions. [2024-10-12 19:24:47,746 INFO L78 Accepts]: Start accepts. Automaton has 1504 states and 2565 transitions. Word has length 108 [2024-10-12 19:24:47,746 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 19:24:47,746 INFO L471 AbstractCegarLoop]: Abstraction has 1504 states and 2565 transitions. [2024-10-12 19:24:47,746 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, (14), 6 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-10-12 19:24:47,747 INFO L276 IsEmpty]: Start isEmpty. Operand 1504 states and 2565 transitions. [2024-10-12 19:24:47,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-10-12 19:24:47,754 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 19:24:47,754 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 19:24:47,754 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-10-12 19:24:47,754 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 19:24:47,755 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 19:24:47,755 INFO L85 PathProgramCache]: Analyzing trace with hash -1541104282, now seen corresponding path program 1 times [2024-10-12 19:24:47,755 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 19:24:47,755 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [401109298] [2024-10-12 19:24:47,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 19:24:47,755 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 19:24:47,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:24:47,840 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-12 19:24:47,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:24:47,850 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-12 19:24:47,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:24:47,856 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-12 19:24:47,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:24:47,858 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-12 19:24:47,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:24:47,861 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-12 19:24:47,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:24:47,863 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-12 19:24:47,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:24:47,872 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-10-12 19:24:47,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:24:47,882 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-12 19:24:47,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:24:47,885 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-10-12 19:24:47,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:24:47,888 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-10-12 19:24:47,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:24:47,889 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-10-12 19:24:47,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:24:47,890 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-10-12 19:24:47,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:24:47,892 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2024-10-12 19:24:47,892 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 19:24:47,892 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [401109298] [2024-10-12 19:24:47,892 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [401109298] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 19:24:47,892 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 19:24:47,892 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-12 19:24:47,892 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1939453934] [2024-10-12 19:24:47,893 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 19:24:47,893 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-12 19:24:47,893 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 19:24:47,894 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-12 19:24:47,894 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-12 19:24:47,894 INFO L87 Difference]: Start difference. First operand 1504 states and 2565 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, (14), 6 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-10-12 19:24:49,162 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 19:24:49,163 INFO L93 Difference]: Finished difference Result 3693 states and 6414 transitions. [2024-10-12 19:24:49,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-12 19:24:49,163 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, (14), 6 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 109 [2024-10-12 19:24:49,164 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 19:24:49,176 INFO L225 Difference]: With dead ends: 3693 [2024-10-12 19:24:49,177 INFO L226 Difference]: Without dead ends: 2435 [2024-10-12 19:24:49,182 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 26 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 19:24:49,182 INFO L432 NwaCegarLoop]: 165 mSDtfsCounter, 1073 mSDsluCounter, 572 mSDsCounter, 0 mSdLazyCounter, 1424 mSolverCounterSat, 350 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1088 SdHoareTripleChecker+Valid, 737 SdHoareTripleChecker+Invalid, 1774 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 350 IncrementalHoareTripleChecker+Valid, 1424 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-10-12 19:24:49,183 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1088 Valid, 737 Invalid, 1774 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [350 Valid, 1424 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-10-12 19:24:49,185 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2435 states. [2024-10-12 19:24:49,286 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2435 to 2271. [2024-10-12 19:24:49,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2271 states, 1846 states have (on average 1.6462621885157096) internal successors, (3039), 1851 states have internal predecessors, (3039), 403 states have call successors, (403), 17 states have call predecessors, (403), 21 states have return successors, (450), 402 states have call predecessors, (450), 402 states have call successors, (450) [2024-10-12 19:24:49,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2271 states to 2271 states and 3892 transitions. [2024-10-12 19:24:49,302 INFO L78 Accepts]: Start accepts. Automaton has 2271 states and 3892 transitions. Word has length 109 [2024-10-12 19:24:49,302 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 19:24:49,303 INFO L471 AbstractCegarLoop]: Abstraction has 2271 states and 3892 transitions. [2024-10-12 19:24:49,303 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, (14), 6 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-10-12 19:24:49,303 INFO L276 IsEmpty]: Start isEmpty. Operand 2271 states and 3892 transitions. [2024-10-12 19:24:49,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2024-10-12 19:24:49,313 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 19:24:49,314 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 19:24:49,314 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-10-12 19:24:49,314 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 19:24:49,314 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 19:24:49,314 INFO L85 PathProgramCache]: Analyzing trace with hash 1533141905, now seen corresponding path program 1 times [2024-10-12 19:24:49,315 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 19:24:49,315 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1989956050] [2024-10-12 19:24:49,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 19:24:49,315 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 19:24:49,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:24:49,376 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-12 19:24:49,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:24:49,386 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-12 19:24:49,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:24:49,388 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-12 19:24:49,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:24:49,390 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-12 19:24:49,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:24:49,392 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-12 19:24:49,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:24:49,394 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-12 19:24:49,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:24:49,403 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-10-12 19:24:49,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:24:49,417 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-10-12 19:24:49,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:24:49,419 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-10-12 19:24:49,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:24:49,420 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-10-12 19:24:49,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:24:49,421 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-12 19:24:49,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:24:49,422 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-12 19:24:49,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:24:49,423 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2024-10-12 19:24:49,423 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 19:24:49,423 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1989956050] [2024-10-12 19:24:49,423 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1989956050] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 19:24:49,424 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 19:24:49,424 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-12 19:24:49,424 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [561413200] [2024-10-12 19:24:49,424 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 19:24:49,424 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-12 19:24:49,424 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 19:24:49,425 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-12 19:24:49,425 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-12 19:24:49,425 INFO L87 Difference]: Start difference. First operand 2271 states and 3892 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, (14), 6 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-10-12 19:24:50,650 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 19:24:50,650 INFO L93 Difference]: Finished difference Result 5475 states and 9572 transitions. [2024-10-12 19:24:50,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-12 19:24:50,651 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, (14), 6 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 110 [2024-10-12 19:24:50,651 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 19:24:50,672 INFO L225 Difference]: With dead ends: 5475 [2024-10-12 19:24:50,672 INFO L226 Difference]: Without dead ends: 3659 [2024-10-12 19:24:50,681 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 26 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 19:24:50,682 INFO L432 NwaCegarLoop]: 164 mSDtfsCounter, 1074 mSDsluCounter, 572 mSDsCounter, 0 mSdLazyCounter, 1402 mSolverCounterSat, 354 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1090 SdHoareTripleChecker+Valid, 736 SdHoareTripleChecker+Invalid, 1756 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 354 IncrementalHoareTripleChecker+Valid, 1402 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-10-12 19:24:50,683 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1090 Valid, 736 Invalid, 1756 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [354 Valid, 1402 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-10-12 19:24:50,686 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3659 states. [2024-10-12 19:24:50,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3659 to 3495. [2024-10-12 19:24:50,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3495 states, 2891 states have (on average 1.6489104116222761) internal successors, (4767), 2896 states have internal predecessors, (4767), 582 states have call successors, (582), 17 states have call predecessors, (582), 21 states have return successors, (655), 581 states have call predecessors, (655), 581 states have call successors, (655) [2024-10-12 19:24:50,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3495 states to 3495 states and 6004 transitions. [2024-10-12 19:24:50,876 INFO L78 Accepts]: Start accepts. Automaton has 3495 states and 6004 transitions. Word has length 110 [2024-10-12 19:24:50,877 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 19:24:50,877 INFO L471 AbstractCegarLoop]: Abstraction has 3495 states and 6004 transitions. [2024-10-12 19:24:50,877 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, (14), 6 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-10-12 19:24:50,877 INFO L276 IsEmpty]: Start isEmpty. Operand 3495 states and 6004 transitions. [2024-10-12 19:24:50,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-10-12 19:24:50,886 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 19:24:50,887 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 19:24:50,887 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-10-12 19:24:50,887 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 19:24:50,887 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 19:24:50,887 INFO L85 PathProgramCache]: Analyzing trace with hash 1143860450, now seen corresponding path program 1 times [2024-10-12 19:24:50,888 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 19:24:50,888 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1206493042] [2024-10-12 19:24:50,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 19:24:50,888 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 19:24:50,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:24:50,954 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-12 19:24:50,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:24:50,964 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-12 19:24:50,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:24:50,967 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-12 19:24:50,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:24:50,969 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-12 19:24:50,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:24:50,972 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-12 19:24:50,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:24:50,974 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-12 19:24:50,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:24:50,982 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-10-12 19:24:50,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:24:50,992 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-10-12 19:24:50,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:24:50,994 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-12 19:24:50,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:24:50,996 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-10-12 19:24:50,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:24:50,999 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-10-12 19:24:50,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:24:51,000 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-10-12 19:24:51,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:24:51,001 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2024-10-12 19:24:51,001 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 19:24:51,001 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1206493042] [2024-10-12 19:24:51,001 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1206493042] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 19:24:51,001 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 19:24:51,001 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-12 19:24:51,001 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [39151845] [2024-10-12 19:24:51,001 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 19:24:51,002 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-12 19:24:51,002 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 19:24:51,002 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-12 19:24:51,002 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-12 19:24:51,003 INFO L87 Difference]: Start difference. First operand 3495 states and 6004 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, (14), 6 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-10-12 19:24:52,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 19:24:52,317 INFO L93 Difference]: Finished difference Result 8454 states and 14812 transitions. [2024-10-12 19:24:52,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-12 19:24:52,318 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, (14), 6 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 111 [2024-10-12 19:24:52,318 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 19:24:52,354 INFO L225 Difference]: With dead ends: 8454 [2024-10-12 19:24:52,354 INFO L226 Difference]: Without dead ends: 5717 [2024-10-12 19:24:52,366 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 26 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 19:24:52,367 INFO L432 NwaCegarLoop]: 180 mSDtfsCounter, 1071 mSDsluCounter, 588 mSDsCounter, 0 mSdLazyCounter, 1456 mSolverCounterSat, 357 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1087 SdHoareTripleChecker+Valid, 768 SdHoareTripleChecker+Invalid, 1813 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 357 IncrementalHoareTripleChecker+Valid, 1456 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-10-12 19:24:52,368 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1087 Valid, 768 Invalid, 1813 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [357 Valid, 1456 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-10-12 19:24:52,374 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5717 states. [2024-10-12 19:24:52,600 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5717 to 5553. [2024-10-12 19:24:52,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5553 states, 4573 states have (on average 1.6378744806472776) internal successors, (7490), 4578 states have internal predecessors, (7490), 958 states have call successors, (958), 17 states have call predecessors, (958), 21 states have return successors, (1075), 957 states have call predecessors, (1075), 957 states have call successors, (1075) [2024-10-12 19:24:52,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5553 states to 5553 states and 9523 transitions. [2024-10-12 19:24:52,640 INFO L78 Accepts]: Start accepts. Automaton has 5553 states and 9523 transitions. Word has length 111 [2024-10-12 19:24:52,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 19:24:52,641 INFO L471 AbstractCegarLoop]: Abstraction has 5553 states and 9523 transitions. [2024-10-12 19:24:52,641 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, (14), 6 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-10-12 19:24:52,641 INFO L276 IsEmpty]: Start isEmpty. Operand 5553 states and 9523 transitions. [2024-10-12 19:24:52,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2024-10-12 19:24:52,654 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 19:24:52,654 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 19:24:52,655 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-10-12 19:24:52,655 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 19:24:52,655 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 19:24:52,655 INFO L85 PathProgramCache]: Analyzing trace with hash 259706901, now seen corresponding path program 1 times [2024-10-12 19:24:52,655 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 19:24:52,655 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [651513663] [2024-10-12 19:24:52,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 19:24:52,656 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 19:24:52,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:24:52,712 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-12 19:24:52,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:24:52,721 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-12 19:24:52,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:24:52,724 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-12 19:24:52,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:24:52,726 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-12 19:24:52,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:24:52,727 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-12 19:24:52,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:24:52,730 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-12 19:24:52,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:24:52,740 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-10-12 19:24:52,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:24:52,749 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-10-12 19:24:52,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:24:52,752 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-10-12 19:24:52,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:24:52,753 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-10-12 19:24:52,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:24:52,755 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2024-10-12 19:24:52,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:24:52,756 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-10-12 19:24:52,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:24:52,758 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2024-10-12 19:24:52,758 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 19:24:52,758 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [651513663] [2024-10-12 19:24:52,758 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [651513663] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 19:24:52,758 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 19:24:52,758 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-12 19:24:52,758 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1167952653] [2024-10-12 19:24:52,759 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 19:24:52,759 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-12 19:24:52,759 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 19:24:52,760 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-12 19:24:52,760 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-12 19:24:52,760 INFO L87 Difference]: Start difference. First operand 5553 states and 9523 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, (14), 6 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-10-12 19:24:54,079 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 19:24:54,079 INFO L93 Difference]: Finished difference Result 13815 states and 24169 transitions. [2024-10-12 19:24:54,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-12 19:24:54,080 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, (14), 6 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 112 [2024-10-12 19:24:54,080 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 19:24:54,191 INFO L225 Difference]: With dead ends: 13815 [2024-10-12 19:24:54,193 INFO L226 Difference]: Without dead ends: 9406 [2024-10-12 19:24:54,206 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 26 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 19:24:54,207 INFO L432 NwaCegarLoop]: 163 mSDtfsCounter, 1072 mSDsluCounter, 573 mSDsCounter, 0 mSdLazyCounter, 1402 mSolverCounterSat, 360 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1088 SdHoareTripleChecker+Valid, 736 SdHoareTripleChecker+Invalid, 1762 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 360 IncrementalHoareTripleChecker+Valid, 1402 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-10-12 19:24:54,207 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1088 Valid, 736 Invalid, 1762 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [360 Valid, 1402 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-10-12 19:24:54,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9406 states. [2024-10-12 19:24:54,534 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9406 to 9242. [2024-10-12 19:24:54,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9242 states, 7656 states have (on average 1.6353187042842214) internal successors, (12520), 7661 states have internal predecessors, (12520), 1564 states have call successors, (1564), 17 states have call predecessors, (1564), 21 states have return successors, (1759), 1563 states have call predecessors, (1759), 1563 states have call successors, (1759) [2024-10-12 19:24:54,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9242 states to 9242 states and 15843 transitions. [2024-10-12 19:24:54,600 INFO L78 Accepts]: Start accepts. Automaton has 9242 states and 15843 transitions. Word has length 112 [2024-10-12 19:24:54,600 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 19:24:54,600 INFO L471 AbstractCegarLoop]: Abstraction has 9242 states and 15843 transitions. [2024-10-12 19:24:54,601 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, (14), 6 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-10-12 19:24:54,601 INFO L276 IsEmpty]: Start isEmpty. Operand 9242 states and 15843 transitions. [2024-10-12 19:24:54,617 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2024-10-12 19:24:54,618 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 19:24:54,618 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 19:24:54,618 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-10-12 19:24:54,618 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 19:24:54,619 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 19:24:54,619 INFO L85 PathProgramCache]: Analyzing trace with hash -1565049712, now seen corresponding path program 1 times [2024-10-12 19:24:54,619 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 19:24:54,619 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [548163996] [2024-10-12 19:24:54,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 19:24:54,620 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 19:24:54,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:24:54,746 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-12 19:24:54,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:24:54,756 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-12 19:24:54,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:24:54,759 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-12 19:24:54,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:24:54,761 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-12 19:24:54,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:24:54,763 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-12 19:24:54,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:24:54,765 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-12 19:24:54,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:24:54,773 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-10-12 19:24:54,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:24:54,782 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-10-12 19:24:54,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:24:54,784 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-12 19:24:54,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:24:54,786 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-12 19:24:54,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:24:54,789 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-12 19:24:54,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:24:54,794 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-10-12 19:24:54,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:24:54,795 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2024-10-12 19:24:54,795 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 19:24:54,795 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [548163996] [2024-10-12 19:24:54,795 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [548163996] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 19:24:54,795 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 19:24:54,796 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-12 19:24:54,796 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [25529477] [2024-10-12 19:24:54,796 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 19:24:54,796 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-12 19:24:54,796 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 19:24:54,797 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-12 19:24:54,797 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-12 19:24:54,797 INFO L87 Difference]: Start difference. First operand 9242 states and 15843 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, (14), 6 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-10-12 19:24:56,310 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 19:24:56,310 INFO L93 Difference]: Finished difference Result 24007 states and 41933 transitions. [2024-10-12 19:24:56,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-12 19:24:56,310 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, (14), 6 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 113 [2024-10-12 19:24:56,311 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 19:24:56,382 INFO L225 Difference]: With dead ends: 24007 [2024-10-12 19:24:56,382 INFO L226 Difference]: Without dead ends: 16366 [2024-10-12 19:24:56,416 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 26 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 19:24:56,417 INFO L432 NwaCegarLoop]: 183 mSDtfsCounter, 1073 mSDsluCounter, 601 mSDsCounter, 0 mSdLazyCounter, 1443 mSolverCounterSat, 360 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1088 SdHoareTripleChecker+Valid, 784 SdHoareTripleChecker+Invalid, 1803 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 360 IncrementalHoareTripleChecker+Valid, 1443 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-10-12 19:24:56,417 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1088 Valid, 784 Invalid, 1803 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [360 Valid, 1443 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-10-12 19:24:56,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16366 states. [2024-10-12 19:24:57,019 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16366 to 16202. [2024-10-12 19:24:57,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16202 states, 13413 states have (on average 1.62625810780586) internal successors, (21813), 13418 states have internal predecessors, (21813), 2767 states have call successors, (2767), 17 states have call predecessors, (2767), 21 states have return successors, (3106), 2766 states have call predecessors, (3106), 2766 states have call successors, (3106) [2024-10-12 19:24:57,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16202 states to 16202 states and 27686 transitions. [2024-10-12 19:24:57,108 INFO L78 Accepts]: Start accepts. Automaton has 16202 states and 27686 transitions. Word has length 113 [2024-10-12 19:24:57,108 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 19:24:57,109 INFO L471 AbstractCegarLoop]: Abstraction has 16202 states and 27686 transitions. [2024-10-12 19:24:57,109 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, (14), 6 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-10-12 19:24:57,109 INFO L276 IsEmpty]: Start isEmpty. Operand 16202 states and 27686 transitions. [2024-10-12 19:24:57,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2024-10-12 19:24:57,131 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 19:24:57,132 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 19:24:57,132 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-10-12 19:24:57,132 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 19:24:57,132 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 19:24:57,133 INFO L85 PathProgramCache]: Analyzing trace with hash 1287154454, now seen corresponding path program 1 times [2024-10-12 19:24:57,133 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 19:24:57,133 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [139587225] [2024-10-12 19:24:57,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 19:24:57,134 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 19:24:57,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:24:57,192 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-12 19:24:57,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:24:57,205 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-12 19:24:57,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:24:57,210 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-12 19:24:57,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:24:57,212 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-12 19:24:57,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:24:57,214 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-12 19:24:57,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:24:57,221 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-12 19:24:57,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:24:57,230 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-12 19:24:57,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:24:57,240 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-12 19:24:57,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:24:57,241 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-10-12 19:24:57,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:24:57,244 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-10-12 19:24:57,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:24:57,245 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-10-12 19:24:57,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:24:57,247 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-10-12 19:24:57,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:24:57,248 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2024-10-12 19:24:57,248 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 19:24:57,248 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [139587225] [2024-10-12 19:24:57,249 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [139587225] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 19:24:57,249 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 19:24:57,249 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-12 19:24:57,249 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1182072559] [2024-10-12 19:24:57,249 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 19:24:57,250 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-12 19:24:57,250 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 19:24:57,251 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-12 19:24:57,251 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-12 19:24:57,251 INFO L87 Difference]: Start difference. First operand 16202 states and 27686 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, (14), 6 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-10-12 19:24:58,923 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 19:24:58,924 INFO L93 Difference]: Finished difference Result 42982 states and 74945 transitions. [2024-10-12 19:24:58,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-12 19:24:58,925 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, (14), 6 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 114 [2024-10-12 19:24:58,925 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 19:24:59,064 INFO L225 Difference]: With dead ends: 42982 [2024-10-12 19:24:59,065 INFO L226 Difference]: Without dead ends: 29029 [2024-10-12 19:24:59,116 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 26 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 19:24:59,116 INFO L432 NwaCegarLoop]: 164 mSDtfsCounter, 1069 mSDsluCounter, 573 mSDsCounter, 0 mSdLazyCounter, 1402 mSolverCounterSat, 360 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1085 SdHoareTripleChecker+Valid, 737 SdHoareTripleChecker+Invalid, 1762 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 360 IncrementalHoareTripleChecker+Valid, 1402 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-10-12 19:24:59,117 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1085 Valid, 737 Invalid, 1762 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [360 Valid, 1402 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-10-12 19:24:59,147 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29029 states. [2024-10-12 19:25:00,532 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29029 to 28865. [2024-10-12 19:25:00,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28865 states, 24037 states have (on average 1.6224570453883596) internal successors, (38999), 24042 states have internal predecessors, (38999), 4806 states have call successors, (4806), 17 states have call predecessors, (4806), 21 states have return successors, (5419), 4805 states have call predecessors, (5419), 4805 states have call successors, (5419) [2024-10-12 19:25:00,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28865 states to 28865 states and 49224 transitions. [2024-10-12 19:25:00,686 INFO L78 Accepts]: Start accepts. Automaton has 28865 states and 49224 transitions. Word has length 114 [2024-10-12 19:25:00,687 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 19:25:00,687 INFO L471 AbstractCegarLoop]: Abstraction has 28865 states and 49224 transitions. [2024-10-12 19:25:00,687 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, (14), 6 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-10-12 19:25:00,687 INFO L276 IsEmpty]: Start isEmpty. Operand 28865 states and 49224 transitions. [2024-10-12 19:25:00,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2024-10-12 19:25:00,714 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 19:25:00,714 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 19:25:00,715 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-10-12 19:25:00,715 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 19:25:00,715 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 19:25:00,715 INFO L85 PathProgramCache]: Analyzing trace with hash 113905074, now seen corresponding path program 1 times [2024-10-12 19:25:00,715 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 19:25:00,716 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [907915364] [2024-10-12 19:25:00,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 19:25:00,716 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 19:25:00,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:25:00,772 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-12 19:25:00,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:25:00,781 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-12 19:25:00,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:25:00,785 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-12 19:25:00,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:25:00,787 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-12 19:25:00,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:25:00,788 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-12 19:25:00,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:25:00,790 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-12 19:25:00,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:25:00,799 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-10-12 19:25:00,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:25:00,807 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-12 19:25:00,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:25:00,811 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-10-12 19:25:00,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:25:00,812 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-10-12 19:25:00,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:25:00,816 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-10-12 19:25:00,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:25:00,817 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-10-12 19:25:00,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:25:00,818 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2024-10-12 19:25:00,818 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 19:25:00,819 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [907915364] [2024-10-12 19:25:00,819 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [907915364] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 19:25:00,819 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 19:25:00,819 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-12 19:25:00,819 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2136957409] [2024-10-12 19:25:00,819 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 19:25:00,820 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-12 19:25:00,821 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 19:25:00,822 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-12 19:25:00,822 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-12 19:25:00,822 INFO L87 Difference]: Start difference. First operand 28865 states and 49224 transitions. Second operand has 7 states, 7 states have (on average 10.714285714285714) internal successors, (75), 3 states have internal predecessors, (75), 2 states have call successors, (14), 6 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-10-12 19:25:03,531 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 19:25:03,531 INFO L93 Difference]: Finished difference Result 78754 states and 136504 transitions. [2024-10-12 19:25:03,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-12 19:25:03,532 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.714285714285714) internal successors, (75), 3 states have internal predecessors, (75), 2 states have call successors, (14), 6 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 115 [2024-10-12 19:25:03,532 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 19:25:03,782 INFO L225 Difference]: With dead ends: 78754 [2024-10-12 19:25:03,782 INFO L226 Difference]: Without dead ends: 52917 [2024-10-12 19:25:03,869 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 26 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 19:25:03,870 INFO L432 NwaCegarLoop]: 166 mSDtfsCounter, 1070 mSDsluCounter, 577 mSDsCounter, 0 mSdLazyCounter, 1394 mSolverCounterSat, 368 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1086 SdHoareTripleChecker+Valid, 743 SdHoareTripleChecker+Invalid, 1762 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 368 IncrementalHoareTripleChecker+Valid, 1394 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-10-12 19:25:03,871 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1086 Valid, 743 Invalid, 1762 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [368 Valid, 1394 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-10-12 19:25:03,944 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52917 states. [2024-10-12 19:25:05,928 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52917 to 52753. [2024-10-12 19:25:05,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52753 states, 44210 states have (on average 1.6174847319610948) internal successors, (71509), 44215 states have internal predecessors, (71509), 8521 states have call successors, (8521), 17 states have call predecessors, (8521), 21 states have return successors, (9666), 8520 states have call predecessors, (9666), 8520 states have call successors, (9666) [2024-10-12 19:25:06,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52753 states to 52753 states and 89696 transitions. [2024-10-12 19:25:06,206 INFO L78 Accepts]: Start accepts. Automaton has 52753 states and 89696 transitions. Word has length 115 [2024-10-12 19:25:06,207 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 19:25:06,208 INFO L471 AbstractCegarLoop]: Abstraction has 52753 states and 89696 transitions. [2024-10-12 19:25:06,208 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.714285714285714) internal successors, (75), 3 states have internal predecessors, (75), 2 states have call successors, (14), 6 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-10-12 19:25:06,208 INFO L276 IsEmpty]: Start isEmpty. Operand 52753 states and 89696 transitions. [2024-10-12 19:25:06,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2024-10-12 19:25:06,233 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 19:25:06,233 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 19:25:06,233 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-10-12 19:25:06,233 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 19:25:06,234 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 19:25:06,234 INFO L85 PathProgramCache]: Analyzing trace with hash -1987932938, now seen corresponding path program 1 times [2024-10-12 19:25:06,234 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 19:25:06,234 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1490035801] [2024-10-12 19:25:06,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 19:25:06,234 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 19:25:06,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:25:06,285 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-12 19:25:06,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:25:06,294 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-12 19:25:06,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:25:06,297 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-12 19:25:06,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:25:06,299 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-12 19:25:06,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:25:06,301 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-12 19:25:06,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:25:06,303 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-12 19:25:06,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:25:06,311 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-10-12 19:25:06,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:25:06,320 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-10-12 19:25:06,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:25:06,322 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-10-12 19:25:06,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:25:06,323 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-12 19:25:06,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:25:06,325 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-10-12 19:25:06,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:25:06,326 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-12 19:25:06,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:25:06,327 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2024-10-12 19:25:06,327 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 19:25:06,327 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1490035801] [2024-10-12 19:25:06,327 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1490035801] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 19:25:06,327 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 19:25:06,327 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-12 19:25:06,327 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1556629788] [2024-10-12 19:25:06,328 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 19:25:06,328 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-12 19:25:06,328 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 19:25:06,329 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-12 19:25:06,329 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-12 19:25:06,329 INFO L87 Difference]: Start difference. First operand 52753 states and 89696 transitions. Second operand has 7 states, 7 states have (on average 10.857142857142858) internal successors, (76), 3 states have internal predecessors, (76), 2 states have call successors, (14), 6 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-10-12 19:25:09,660 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 19:25:09,660 INFO L93 Difference]: Finished difference Result 98529 states and 171209 transitions. [2024-10-12 19:25:09,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-12 19:25:09,661 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.857142857142858) internal successors, (76), 3 states have internal predecessors, (76), 2 states have call successors, (14), 6 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 116 [2024-10-12 19:25:09,661 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 19:25:10,344 INFO L225 Difference]: With dead ends: 98529 [2024-10-12 19:25:10,345 INFO L226 Difference]: Without dead ends: 98389 [2024-10-12 19:25:10,379 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 26 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 19:25:10,380 INFO L432 NwaCegarLoop]: 170 mSDtfsCounter, 1062 mSDsluCounter, 581 mSDsCounter, 0 mSdLazyCounter, 1416 mSolverCounterSat, 364 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1077 SdHoareTripleChecker+Valid, 751 SdHoareTripleChecker+Invalid, 1780 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 364 IncrementalHoareTripleChecker+Valid, 1416 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-10-12 19:25:10,381 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1077 Valid, 751 Invalid, 1780 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [364 Valid, 1416 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-10-12 19:25:10,447 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98389 states. [2024-10-12 19:25:13,778 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98389 to 98225. [2024-10-12 19:25:13,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 98225 states, 82883 states have (on average 1.6111627233570214) internal successors, (133538), 82888 states have internal predecessors, (133538), 15320 states have call successors, (15320), 17 states have call predecessors, (15320), 21 states have return successors, (17511), 15319 states have call predecessors, (17511), 15319 states have call successors, (17511) [2024-10-12 19:25:14,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98225 states to 98225 states and 166369 transitions. [2024-10-12 19:25:14,235 INFO L78 Accepts]: Start accepts. Automaton has 98225 states and 166369 transitions. Word has length 116 [2024-10-12 19:25:14,235 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 19:25:14,235 INFO L471 AbstractCegarLoop]: Abstraction has 98225 states and 166369 transitions. [2024-10-12 19:25:14,235 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.857142857142858) internal successors, (76), 3 states have internal predecessors, (76), 2 states have call successors, (14), 6 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-10-12 19:25:14,236 INFO L276 IsEmpty]: Start isEmpty. Operand 98225 states and 166369 transitions. [2024-10-12 19:25:14,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2024-10-12 19:25:14,265 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 19:25:14,266 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, 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 19:25:14,266 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-10-12 19:25:14,266 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 19:25:14,266 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 19:25:14,267 INFO L85 PathProgramCache]: Analyzing trace with hash 1509520945, now seen corresponding path program 1 times [2024-10-12 19:25:14,267 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 19:25:14,267 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1608214294] [2024-10-12 19:25:14,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 19:25:14,267 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 19:25:14,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:25:14,368 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-12 19:25:14,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:25:14,378 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-12 19:25:14,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:25:14,380 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-12 19:25:14,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:25:14,382 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-12 19:25:14,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:25:14,383 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-12 19:25:14,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:25:14,385 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-12 19:25:14,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:25:14,395 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-10-12 19:25:14,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:25:14,405 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-10-12 19:25:14,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:25:14,407 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-10-12 19:25:14,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:25:14,408 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-10-12 19:25:14,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:25:14,409 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-10-12 19:25:14,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:25:14,421 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-10-12 19:25:14,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:25:14,423 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2024-10-12 19:25:14,423 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 19:25:14,423 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1608214294] [2024-10-12 19:25:14,423 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1608214294] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-12 19:25:14,424 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [236020396] [2024-10-12 19:25:14,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 19:25:14,424 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-12 19:25:14,424 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 19:25:14,426 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-12 19:25:14,434 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-10-12 19:25:14,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:25:14,698 INFO L255 TraceCheckSpWp]: Trace formula consists of 1033 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-10-12 19:25:14,702 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-12 19:25:14,845 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 14 proven. 6 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-12 19:25:14,845 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-12 19:25:15,074 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 2 proven. 6 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-10-12 19:25:15,075 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [236020396] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-12 19:25:15,075 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-12 19:25:15,075 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 8, 8] total 22 [2024-10-12 19:25:15,075 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [663558686] [2024-10-12 19:25:15,075 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-12 19:25:15,076 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-10-12 19:25:15,076 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 19:25:15,076 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-10-12 19:25:15,077 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=409, Unknown=0, NotChecked=0, Total=462 [2024-10-12 19:25:15,077 INFO L87 Difference]: Start difference. First operand 98225 states and 166369 transitions. Second operand has 22 states, 21 states have (on average 9.476190476190476) internal successors, (199), 17 states have internal predecessors, (199), 4 states have call successors, (39), 10 states have call predecessors, (39), 8 states have return successors, (33), 5 states have call predecessors, (33), 4 states have call successors, (33) [2024-10-12 19:25:23,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 19:25:23,948 INFO L93 Difference]: Finished difference Result 196921 states and 344395 transitions. [2024-10-12 19:25:23,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2024-10-12 19:25:23,949 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 21 states have (on average 9.476190476190476) internal successors, (199), 17 states have internal predecessors, (199), 4 states have call successors, (39), 10 states have call predecessors, (39), 8 states have return successors, (33), 5 states have call predecessors, (33), 4 states have call successors, (33) Word has length 117 [2024-10-12 19:25:23,949 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 19:25:25,100 INFO L225 Difference]: With dead ends: 196921 [2024-10-12 19:25:25,101 INFO L226 Difference]: Without dead ends: 196786 [2024-10-12 19:25:25,183 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 310 GetRequests, 256 SyntacticMatches, 0 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 596 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=619, Invalid=2461, Unknown=0, NotChecked=0, Total=3080 [2024-10-12 19:25:25,184 INFO L432 NwaCegarLoop]: 142 mSDtfsCounter, 2274 mSDsluCounter, 2559 mSDsCounter, 0 mSdLazyCounter, 8703 mSolverCounterSat, 658 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2287 SdHoareTripleChecker+Valid, 2701 SdHoareTripleChecker+Invalid, 9361 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 658 IncrementalHoareTripleChecker+Valid, 8703 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2024-10-12 19:25:25,184 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2287 Valid, 2701 Invalid, 9361 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [658 Valid, 8703 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2024-10-12 19:25:25,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 196786 states. [2024-10-12 19:25:32,011 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 196786 to 196455. [2024-10-12 19:25:32,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 196455 states, 165773 states have (on average 1.6111550131806749) internal successors, (267086), 165780 states have internal predecessors, (267086), 30638 states have call successors, (30638), 36 states have call predecessors, (30638), 43 states have return successors, (37200), 30638 states have call predecessors, (37200), 30636 states have call successors, (37200) [2024-10-12 19:25:32,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 196455 states to 196455 states and 334924 transitions. [2024-10-12 19:25:32,891 INFO L78 Accepts]: Start accepts. Automaton has 196455 states and 334924 transitions. Word has length 117 [2024-10-12 19:25:32,892 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 19:25:32,892 INFO L471 AbstractCegarLoop]: Abstraction has 196455 states and 334924 transitions. [2024-10-12 19:25:32,892 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 21 states have (on average 9.476190476190476) internal successors, (199), 17 states have internal predecessors, (199), 4 states have call successors, (39), 10 states have call predecessors, (39), 8 states have return successors, (33), 5 states have call predecessors, (33), 4 states have call successors, (33) [2024-10-12 19:25:32,892 INFO L276 IsEmpty]: Start isEmpty. Operand 196455 states and 334924 transitions. [2024-10-12 19:25:32,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2024-10-12 19:25:32,983 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 19:25:32,984 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, 1, 1, 1, 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 19:25:33,002 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-10-12 19:25:33,185 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-12 19:25:33,186 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 19:25:33,186 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 19:25:33,187 INFO L85 PathProgramCache]: Analyzing trace with hash 1953113514, now seen corresponding path program 1 times [2024-10-12 19:25:33,187 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 19:25:33,187 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [110756475] [2024-10-12 19:25:33,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 19:25:33,187 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 19:25:33,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:25:33,339 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-12 19:25:33,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:25:33,353 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-12 19:25:33,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:25:33,355 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-12 19:25:33,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:25:33,358 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-12 19:25:33,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:25:33,360 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-12 19:25:33,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:25:33,363 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-12 19:25:33,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:25:33,375 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-10-12 19:25:33,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:25:33,388 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-10-12 19:25:33,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:25:33,390 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-10-12 19:25:33,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:25:33,391 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2024-10-12 19:25:33,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:25:33,393 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-10-12 19:25:33,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:25:33,394 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-10-12 19:25:33,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:25:33,396 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-10-12 19:25:33,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:25:33,397 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2024-10-12 19:25:33,397 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 19:25:33,397 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [110756475] [2024-10-12 19:25:33,397 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [110756475] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 19:25:33,397 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 19:25:33,397 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-10-12 19:25:33,397 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [804040095] [2024-10-12 19:25:33,397 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 19:25:33,398 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-10-12 19:25:33,398 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 19:25:33,398 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-10-12 19:25:33,398 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2024-10-12 19:25:33,399 INFO L87 Difference]: Start difference. First operand 196455 states and 334924 transitions. Second operand has 11 states, 11 states have (on average 7.545454545454546) internal successors, (83), 5 states have internal predecessors, (83), 3 states have call successors, (15), 7 states have call predecessors, (15), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13)