./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_spec6_product16.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4a390ef5 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_spec6_product16.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 14dde7567748bafe076b052fc50547f9c42c454af1c5c326a7b2a07549e9af32 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4a390ef-m [2024-10-24 00:52:22,187 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-24 00:52:22,245 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-24 00:52:22,259 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-24 00:52:22,261 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-24 00:52:22,280 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-24 00:52:22,280 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-24 00:52:22,280 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-24 00:52:22,281 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-24 00:52:22,281 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-24 00:52:22,281 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-24 00:52:22,281 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-24 00:52:22,282 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-24 00:52:22,283 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-24 00:52:22,284 INFO L153 SettingsManager]: * Use SBE=true [2024-10-24 00:52:22,285 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-24 00:52:22,285 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-24 00:52:22,285 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-24 00:52:22,285 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-24 00:52:22,285 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-24 00:52:22,285 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-24 00:52:22,289 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-24 00:52:22,289 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-24 00:52:22,289 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-24 00:52:22,289 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-24 00:52:22,289 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-24 00:52:22,290 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-24 00:52:22,290 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-24 00:52:22,290 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-24 00:52:22,290 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-24 00:52:22,290 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-24 00:52:22,290 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-24 00:52:22,290 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 00:52:22,290 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-24 00:52:22,291 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-24 00:52:22,291 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-24 00:52:22,291 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-24 00:52:22,291 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-24 00:52:22,291 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-24 00:52:22,291 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-24 00:52:22,291 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-24 00:52:22,292 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-24 00:52:22,292 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 14dde7567748bafe076b052fc50547f9c42c454af1c5c326a7b2a07549e9af32 [2024-10-24 00:52:22,485 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-24 00:52:22,501 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-24 00:52:22,504 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-24 00:52:22,505 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-24 00:52:22,505 INFO L274 PluginConnector]: CDTParser initialized [2024-10-24 00:52:22,506 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/email_spec6_product16.cil.c [2024-10-24 00:52:23,711 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-24 00:52:23,938 INFO L384 CDTParser]: Found 1 translation units. [2024-10-24 00:52:23,942 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/email_spec6_product16.cil.c [2024-10-24 00:52:23,958 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4ee456e80/592a5f8363624804becddac290fd48e0/FLAG3a8e810bf [2024-10-24 00:52:24,268 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4ee456e80/592a5f8363624804becddac290fd48e0 [2024-10-24 00:52:24,270 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-24 00:52:24,271 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-24 00:52:24,272 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-24 00:52:24,272 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-24 00:52:24,276 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-24 00:52:24,277 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 12:52:24" (1/1) ... [2024-10-24 00:52:24,277 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4cd39e9d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:52:24, skipping insertion in model container [2024-10-24 00:52:24,277 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 12:52:24" (1/1) ... [2024-10-24 00:52:24,323 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-24 00:52:24,636 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_spec6_product16.cil.c[39829,39842] [2024-10-24 00:52:24,724 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 00:52:24,733 INFO L200 MainTranslator]: Completed pre-run [2024-10-24 00:52:24,740 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [48] [2024-10-24 00:52:24,741 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"ClientLib.i","") [363] [2024-10-24 00:52:24,741 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"EmailLib.i","") [1435] [2024-10-24 00:52:24,742 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [1847] [2024-10-24 00:52:24,742 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [1856] [2024-10-24 00:52:24,742 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [2222] [2024-10-24 00:52:24,742 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [2257] [2024-10-24 00:52:24,742 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Email.i","") [2473] [2024-10-24 00:52:24,742 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Util.i","") [2578] [2024-10-24 00:52:24,742 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"EncryptDecrypt_spec.i","") [2595] [2024-10-24 00:52:24,742 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Client.i","") [2642] [2024-10-24 00:52:24,775 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_spec6_product16.cil.c[39829,39842] [2024-10-24 00:52:24,798 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 00:52:24,842 INFO L204 MainTranslator]: Completed translation [2024-10-24 00:52:24,843 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:52:24 WrapperNode [2024-10-24 00:52:24,843 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-24 00:52:24,844 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-24 00:52:24,844 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-24 00:52:24,844 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-24 00:52:24,850 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:52:24" (1/1) ... [2024-10-24 00:52:24,896 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:52:24" (1/1) ... [2024-10-24 00:52:24,941 INFO L138 Inliner]: procedures = 126, calls = 187, calls flagged for inlining = 55, calls inlined = 50, statements flattened = 977 [2024-10-24 00:52:24,942 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-24 00:52:24,942 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-24 00:52:24,942 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-24 00:52:24,942 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-24 00:52:24,952 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:52:24" (1/1) ... [2024-10-24 00:52:24,952 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:52:24" (1/1) ... [2024-10-24 00:52:24,960 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:52:24" (1/1) ... [2024-10-24 00:52:24,991 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]. [2024-10-24 00:52:24,991 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:52:24" (1/1) ... [2024-10-24 00:52:24,991 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:52:24" (1/1) ... [2024-10-24 00:52:25,007 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:52:24" (1/1) ... [2024-10-24 00:52:25,013 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:52:24" (1/1) ... [2024-10-24 00:52:25,020 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:52:24" (1/1) ... [2024-10-24 00:52:25,023 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:52:24" (1/1) ... [2024-10-24 00:52:25,031 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-24 00:52:25,034 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-24 00:52:25,034 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-24 00:52:25,034 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-24 00:52:25,035 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:52:24" (1/1) ... [2024-10-24 00:52:25,040 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 00:52:25,052 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 00:52:25,069 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) [2024-10-24 00:52:25,072 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 [2024-10-24 00:52:25,108 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2024-10-24 00:52:25,108 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2024-10-24 00:52:25,109 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2024-10-24 00:52:25,109 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2024-10-24 00:52:25,109 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2024-10-24 00:52:25,109 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2024-10-24 00:52:25,109 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2024-10-24 00:52:25,110 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2024-10-24 00:52:25,110 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2024-10-24 00:52:25,110 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2024-10-24 00:52:25,111 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2024-10-24 00:52:25,111 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2024-10-24 00:52:25,111 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2024-10-24 00:52:25,111 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2024-10-24 00:52:25,111 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2024-10-24 00:52:25,111 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2024-10-24 00:52:25,112 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2024-10-24 00:52:25,112 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2024-10-24 00:52:25,112 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-24 00:52:25,113 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2024-10-24 00:52:25,113 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2024-10-24 00:52:25,113 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2024-10-24 00:52:25,113 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2024-10-24 00:52:25,113 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2024-10-24 00:52:25,113 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2024-10-24 00:52:25,113 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2024-10-24 00:52:25,114 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2024-10-24 00:52:25,114 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2024-10-24 00:52:25,114 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2024-10-24 00:52:25,115 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2024-10-24 00:52:25,115 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2024-10-24 00:52:25,116 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2024-10-24 00:52:25,116 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2024-10-24 00:52:25,116 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2024-10-24 00:52:25,116 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2024-10-24 00:52:25,116 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-24 00:52:25,116 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-10-24 00:52:25,116 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-10-24 00:52:25,117 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-10-24 00:52:25,117 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2024-10-24 00:52:25,117 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2024-10-24 00:52:25,117 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-24 00:52:25,117 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-24 00:52:25,277 INFO L238 CfgBuilder]: Building ICFG [2024-10-24 00:52:25,279 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-24 00:52:25,900 INFO L? ?]: Removed 412 outVars from TransFormulas that were not future-live. [2024-10-24 00:52:25,901 INFO L287 CfgBuilder]: Performing block encoding [2024-10-24 00:52:25,951 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-24 00:52:25,952 INFO L314 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-24 00:52:25,953 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 12:52:25 BoogieIcfgContainer [2024-10-24 00:52:25,953 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-24 00:52:25,954 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-24 00:52:25,954 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-24 00:52:25,957 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-24 00:52:25,957 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 12:52:24" (1/3) ... [2024-10-24 00:52:25,957 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f06d7cc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 12:52:25, skipping insertion in model container [2024-10-24 00:52:25,958 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:52:24" (2/3) ... [2024-10-24 00:52:25,958 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f06d7cc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 12:52:25, skipping insertion in model container [2024-10-24 00:52:25,958 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 12:52:25" (3/3) ... [2024-10-24 00:52:25,959 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec6_product16.cil.c [2024-10-24 00:52:25,971 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-24 00:52:25,972 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-24 00:52:26,034 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-24 00:52:26,040 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;@5b914617, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-24 00:52:26,041 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-24 00:52:26,046 INFO L276 IsEmpty]: Start isEmpty. Operand has 283 states, 214 states have (on average 1.588785046728972) internal successors, (340), 218 states have internal predecessors, (340), 49 states have call successors, (49), 18 states have call predecessors, (49), 18 states have return successors, (49), 49 states have call predecessors, (49), 49 states have call successors, (49) [2024-10-24 00:52:26,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-10-24 00:52:26,060 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 00:52:26,060 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 00:52:26,061 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 00:52:26,064 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 00:52:26,065 INFO L85 PathProgramCache]: Analyzing trace with hash -50221733, now seen corresponding path program 1 times [2024-10-24 00:52:26,071 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 00:52:26,071 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1557641968] [2024-10-24 00:52:26,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 00:52:26,072 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 00:52:26,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:26,595 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 00:52:26,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:26,608 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 00:52:26,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:26,612 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 00:52:26,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:26,644 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 00:52:26,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:26,647 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-24 00:52:26,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:26,650 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 00:52:26,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:26,666 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-10-24 00:52:26,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:26,686 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-10-24 00:52:26,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:26,692 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-10-24 00:52:26,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:26,695 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 00:52:26,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:26,699 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-24 00:52:26,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:26,702 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-24 00:52:26,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:26,704 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-10-24 00:52:26,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:26,706 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-10-24 00:52:26,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:26,708 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-10-24 00:52:26,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:26,713 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2024-10-24 00:52:26,713 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 00:52:26,713 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1557641968] [2024-10-24 00:52:26,714 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1557641968] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 00:52:26,714 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [853632879] [2024-10-24 00:52:26,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 00:52:26,714 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 00:52:26,714 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 00:52:26,716 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) [2024-10-24 00:52:26,717 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-24 00:52:26,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:26,972 INFO L255 TraceCheckSpWp]: Trace formula consists of 1006 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-10-24 00:52:26,978 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 00:52:26,996 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2024-10-24 00:52:26,997 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 00:52:26,997 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [853632879] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 00:52:26,999 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-24 00:52:27,000 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [9] total 9 [2024-10-24 00:52:27,002 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [419364505] [2024-10-24 00:52:27,002 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 00:52:27,006 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-24 00:52:27,006 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 00:52:27,026 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-24 00:52:27,027 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-10-24 00:52:27,030 INFO L87 Difference]: Start difference. First operand has 283 states, 214 states have (on average 1.588785046728972) internal successors, (340), 218 states have internal predecessors, (340), 49 states have call successors, (49), 18 states have call predecessors, (49), 18 states have return successors, (49), 49 states have call predecessors, (49), 49 states have call successors, (49) Second operand has 2 states, 2 states have (on average 28.5) internal successors, (57), 2 states have internal predecessors, (57), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2024-10-24 00:52:27,100 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 00:52:27,101 INFO L93 Difference]: Finished difference Result 421 states and 639 transitions. [2024-10-24 00:52:27,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-24 00:52:27,104 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 28.5) internal successors, (57), 2 states have internal predecessors, (57), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 107 [2024-10-24 00:52:27,104 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 00:52:27,118 INFO L225 Difference]: With dead ends: 421 [2024-10-24 00:52:27,118 INFO L226 Difference]: Without dead ends: 280 [2024-10-24 00:52:27,123 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 140 GetRequests, 133 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-10-24 00:52:27,125 INFO L432 NwaCegarLoop]: 419 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 419 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-24 00:52:27,127 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 419 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 00:52:27,141 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 280 states. [2024-10-24 00:52:27,169 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 280 to 280. [2024-10-24 00:52:27,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 280 states, 212 states have (on average 1.570754716981132) internal successors, (333), 215 states have internal predecessors, (333), 49 states have call successors, (49), 18 states have call predecessors, (49), 18 states have return successors, (48), 48 states have call predecessors, (48), 48 states have call successors, (48) [2024-10-24 00:52:27,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 280 states to 280 states and 430 transitions. [2024-10-24 00:52:27,176 INFO L78 Accepts]: Start accepts. Automaton has 280 states and 430 transitions. Word has length 107 [2024-10-24 00:52:27,177 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 00:52:27,177 INFO L471 AbstractCegarLoop]: Abstraction has 280 states and 430 transitions. [2024-10-24 00:52:27,177 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 28.5) internal successors, (57), 2 states have internal predecessors, (57), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2024-10-24 00:52:27,178 INFO L276 IsEmpty]: Start isEmpty. Operand 280 states and 430 transitions. [2024-10-24 00:52:27,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-10-24 00:52:27,181 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 00:52:27,182 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 00:52:27,199 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-10-24 00:52:27,382 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 [2024-10-24 00:52:27,383 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 00:52:27,384 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 00:52:27,384 INFO L85 PathProgramCache]: Analyzing trace with hash -844008951, now seen corresponding path program 1 times [2024-10-24 00:52:27,384 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 00:52:27,384 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1941936666] [2024-10-24 00:52:27,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 00:52:27,385 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 00:52:27,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:27,554 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 00:52:27,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:27,565 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 00:52:27,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:27,569 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 00:52:27,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:27,590 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 00:52:27,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:27,595 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-24 00:52:27,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:27,599 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 00:52:27,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:27,612 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-10-24 00:52:27,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:27,629 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-10-24 00:52:27,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:27,632 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-24 00:52:27,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:27,634 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-10-24 00:52:27,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:27,635 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-10-24 00:52:27,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:27,638 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-10-24 00:52:27,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:27,640 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-10-24 00:52:27,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:27,642 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-10-24 00:52:27,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:27,644 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-10-24 00:52:27,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:27,651 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2024-10-24 00:52:27,653 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 00:52:27,654 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1941936666] [2024-10-24 00:52:27,654 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1941936666] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 00:52:27,654 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [748983038] [2024-10-24 00:52:27,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 00:52:27,654 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 00:52:27,654 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 00:52:27,656 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) [2024-10-24 00:52:27,658 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-24 00:52:27,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:27,878 INFO L255 TraceCheckSpWp]: Trace formula consists of 1007 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-24 00:52:27,881 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 00:52:27,899 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2024-10-24 00:52:27,899 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 00:52:27,899 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [748983038] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 00:52:27,900 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-24 00:52:27,900 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2024-10-24 00:52:27,900 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [944706932] [2024-10-24 00:52:27,900 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 00:52:27,905 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 00:52:27,905 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 00:52:27,905 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 00:52:27,905 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-10-24 00:52:27,906 INFO L87 Difference]: Start difference. First operand 280 states and 430 transitions. Second operand has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2024-10-24 00:52:27,966 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 00:52:27,967 INFO L93 Difference]: Finished difference Result 417 states and 626 transitions. [2024-10-24 00:52:27,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 00:52:27,967 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 108 [2024-10-24 00:52:27,968 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 00:52:27,970 INFO L225 Difference]: With dead ends: 417 [2024-10-24 00:52:27,972 INFO L226 Difference]: Without dead ends: 282 [2024-10-24 00:52:27,973 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 141 GetRequests, 133 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-10-24 00:52:27,976 INFO L432 NwaCegarLoop]: 416 mSDtfsCounter, 0 mSDsluCounter, 415 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 831 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-24 00:52:27,976 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 831 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 00:52:27,977 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 282 states. [2024-10-24 00:52:27,994 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 282 to 282. [2024-10-24 00:52:27,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 282 states, 214 states have (on average 1.5654205607476634) internal successors, (335), 217 states have internal predecessors, (335), 49 states have call successors, (49), 18 states have call predecessors, (49), 18 states have return successors, (48), 48 states have call predecessors, (48), 48 states have call successors, (48) [2024-10-24 00:52:27,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 282 states to 282 states and 432 transitions. [2024-10-24 00:52:27,997 INFO L78 Accepts]: Start accepts. Automaton has 282 states and 432 transitions. Word has length 108 [2024-10-24 00:52:27,997 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 00:52:27,998 INFO L471 AbstractCegarLoop]: Abstraction has 282 states and 432 transitions. [2024-10-24 00:52:27,998 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2024-10-24 00:52:27,998 INFO L276 IsEmpty]: Start isEmpty. Operand 282 states and 432 transitions. [2024-10-24 00:52:28,000 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2024-10-24 00:52:28,000 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 00:52:28,000 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 00:52:28,014 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-10-24 00:52:28,200 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 [2024-10-24 00:52:28,201 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 00:52:28,202 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 00:52:28,202 INFO L85 PathProgramCache]: Analyzing trace with hash 320579957, now seen corresponding path program 1 times [2024-10-24 00:52:28,202 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 00:52:28,202 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1611527917] [2024-10-24 00:52:28,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 00:52:28,202 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 00:52:28,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:28,320 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 00:52:28,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:28,328 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 00:52:28,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:28,331 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 00:52:28,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:28,348 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 00:52:28,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:28,352 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-24 00:52:28,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:28,355 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 00:52:28,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:28,370 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-10-24 00:52:28,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:28,383 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-10-24 00:52:28,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:28,385 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-10-24 00:52:28,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:28,386 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-24 00:52:28,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:28,388 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-24 00:52:28,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:28,389 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-24 00:52:28,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:28,390 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-10-24 00:52:28,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:28,395 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-10-24 00:52:28,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:28,396 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-10-24 00:52:28,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:28,398 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-10-24 00:52:28,398 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 00:52:28,398 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1611527917] [2024-10-24 00:52:28,398 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1611527917] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 00:52:28,398 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1720065715] [2024-10-24 00:52:28,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 00:52:28,399 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 00:52:28,399 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 00:52:28,402 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) [2024-10-24 00:52:28,405 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-10-24 00:52:28,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:28,633 INFO L255 TraceCheckSpWp]: Trace formula consists of 1019 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-24 00:52:28,637 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 00:52:28,653 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2024-10-24 00:52:28,653 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 00:52:28,653 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1720065715] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 00:52:28,653 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-24 00:52:28,653 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2024-10-24 00:52:28,653 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [350047887] [2024-10-24 00:52:28,653 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 00:52:28,654 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 00:52:28,654 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 00:52:28,654 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 00:52:28,654 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-10-24 00:52:28,655 INFO L87 Difference]: Start difference. First operand 282 states and 432 transitions. Second operand has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2024-10-24 00:52:28,696 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 00:52:28,697 INFO L93 Difference]: Finished difference Result 594 states and 923 transitions. [2024-10-24 00:52:28,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 00:52:28,697 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 113 [2024-10-24 00:52:28,697 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 00:52:28,699 INFO L225 Difference]: With dead ends: 594 [2024-10-24 00:52:28,699 INFO L226 Difference]: Without dead ends: 334 [2024-10-24 00:52:28,701 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 146 GetRequests, 138 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-10-24 00:52:28,703 INFO L432 NwaCegarLoop]: 432 mSDtfsCounter, 102 mSDsluCounter, 373 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 117 SdHoareTripleChecker+Valid, 805 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-24 00:52:28,703 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [117 Valid, 805 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 00:52:28,705 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 334 states. [2024-10-24 00:52:28,721 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 334 to 329. [2024-10-24 00:52:28,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 329 states, 250 states have (on average 1.58) internal successors, (395), 253 states have internal predecessors, (395), 60 states have call successors, (60), 18 states have call predecessors, (60), 18 states have return successors, (59), 59 states have call predecessors, (59), 59 states have call successors, (59) [2024-10-24 00:52:28,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 329 states to 329 states and 514 transitions. [2024-10-24 00:52:28,725 INFO L78 Accepts]: Start accepts. Automaton has 329 states and 514 transitions. Word has length 113 [2024-10-24 00:52:28,725 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 00:52:28,726 INFO L471 AbstractCegarLoop]: Abstraction has 329 states and 514 transitions. [2024-10-24 00:52:28,726 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2024-10-24 00:52:28,726 INFO L276 IsEmpty]: Start isEmpty. Operand 329 states and 514 transitions. [2024-10-24 00:52:28,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2024-10-24 00:52:28,728 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 00:52:28,728 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 00:52:28,742 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-10-24 00:52:28,928 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 [2024-10-24 00:52:28,929 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 00:52:28,929 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 00:52:28,929 INFO L85 PathProgramCache]: Analyzing trace with hash 741629855, now seen corresponding path program 1 times [2024-10-24 00:52:28,929 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 00:52:28,929 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [568633400] [2024-10-24 00:52:28,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 00:52:28,929 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 00:52:28,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:29,036 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 00:52:29,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:29,044 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 00:52:29,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:29,047 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 00:52:29,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:29,063 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 00:52:29,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:29,066 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-24 00:52:29,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:29,069 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 00:52:29,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:29,080 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-10-24 00:52:29,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:29,090 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-10-24 00:52:29,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:29,091 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 00:52:29,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:29,093 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-10-24 00:52:29,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:29,094 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-10-24 00:52:29,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:29,096 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-10-24 00:52:29,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:29,098 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-10-24 00:52:29,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:29,099 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-10-24 00:52:29,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:29,102 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-10-24 00:52:29,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:29,104 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-10-24 00:52:29,104 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 00:52:29,105 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [568633400] [2024-10-24 00:52:29,105 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [568633400] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 00:52:29,105 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1421065476] [2024-10-24 00:52:29,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 00:52:29,105 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 00:52:29,105 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 00:52:29,108 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) [2024-10-24 00:52:29,109 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-10-24 00:52:29,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:29,316 INFO L255 TraceCheckSpWp]: Trace formula consists of 1024 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-10-24 00:52:29,319 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 00:52:29,398 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-10-24 00:52:29,399 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 00:52:29,399 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1421065476] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 00:52:29,399 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-24 00:52:29,399 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 12 [2024-10-24 00:52:29,399 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [710436034] [2024-10-24 00:52:29,399 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 00:52:29,400 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 00:52:29,400 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 00:52:29,400 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 00:52:29,400 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2024-10-24 00:52:29,400 INFO L87 Difference]: Start difference. First operand 329 states and 514 transitions. Second operand has 5 states, 4 states have (on average 18.0) internal successors, (72), 5 states have internal predecessors, (72), 3 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (15), 2 states have call predecessors, (15), 3 states have call successors, (15) [2024-10-24 00:52:29,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 00:52:29,480 INFO L93 Difference]: Finished difference Result 653 states and 1022 transitions. [2024-10-24 00:52:29,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-24 00:52:29,481 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 18.0) internal successors, (72), 5 states have internal predecessors, (72), 3 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (15), 2 states have call predecessors, (15), 3 states have call successors, (15) Word has length 114 [2024-10-24 00:52:29,481 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 00:52:29,483 INFO L225 Difference]: With dead ends: 653 [2024-10-24 00:52:29,484 INFO L226 Difference]: Without dead ends: 331 [2024-10-24 00:52:29,486 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 147 GetRequests, 137 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2024-10-24 00:52:29,487 INFO L432 NwaCegarLoop]: 408 mSDtfsCounter, 2 mSDsluCounter, 1213 mSDsCounter, 0 mSdLazyCounter, 93 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 1621 SdHoareTripleChecker+Invalid, 93 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 93 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 00:52:29,489 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 1621 Invalid, 93 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 93 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 00:52:29,490 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 331 states. [2024-10-24 00:52:29,501 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 331 to 331. [2024-10-24 00:52:29,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 331 states, 251 states have (on average 1.5776892430278884) internal successors, (396), 255 states have internal predecessors, (396), 60 states have call successors, (60), 18 states have call predecessors, (60), 19 states have return successors, (61), 59 states have call predecessors, (61), 59 states have call successors, (61) [2024-10-24 00:52:29,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 331 states to 331 states and 517 transitions. [2024-10-24 00:52:29,504 INFO L78 Accepts]: Start accepts. Automaton has 331 states and 517 transitions. Word has length 114 [2024-10-24 00:52:29,504 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 00:52:29,504 INFO L471 AbstractCegarLoop]: Abstraction has 331 states and 517 transitions. [2024-10-24 00:52:29,504 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 18.0) internal successors, (72), 5 states have internal predecessors, (72), 3 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (15), 2 states have call predecessors, (15), 3 states have call successors, (15) [2024-10-24 00:52:29,504 INFO L276 IsEmpty]: Start isEmpty. Operand 331 states and 517 transitions. [2024-10-24 00:52:29,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2024-10-24 00:52:29,506 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 00:52:29,506 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 00:52:29,521 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-10-24 00:52:29,707 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 [2024-10-24 00:52:29,707 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 00:52:29,707 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 00:52:29,708 INFO L85 PathProgramCache]: Analyzing trace with hash -1497917272, now seen corresponding path program 1 times [2024-10-24 00:52:29,708 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 00:52:29,708 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [865472564] [2024-10-24 00:52:29,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 00:52:29,708 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 00:52:29,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:29,833 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 00:52:29,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:29,843 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 00:52:29,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:29,846 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 00:52:29,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:29,866 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-24 00:52:29,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:29,889 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-10-24 00:52:29,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:29,892 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-10-24 00:52:29,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:29,902 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-24 00:52:29,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:29,915 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-10-24 00:52:29,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:29,917 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-10-24 00:52:29,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:29,920 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-10-24 00:52:29,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:29,921 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-10-24 00:52:29,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:29,922 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-10-24 00:52:29,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:29,924 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-24 00:52:29,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:29,925 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-10-24 00:52:29,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:29,927 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-10-24 00:52:29,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:29,929 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-10-24 00:52:29,929 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 00:52:29,929 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [865472564] [2024-10-24 00:52:29,930 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [865472564] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 00:52:29,930 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [576262254] [2024-10-24 00:52:29,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 00:52:29,930 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 00:52:29,930 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 00:52:29,932 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) [2024-10-24 00:52:29,933 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-10-24 00:52:30,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:30,141 INFO L255 TraceCheckSpWp]: Trace formula consists of 1025 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-10-24 00:52:30,143 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 00:52:30,189 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-10-24 00:52:30,192 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 00:52:30,192 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [576262254] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 00:52:30,192 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-24 00:52:30,192 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [12] total 15 [2024-10-24 00:52:30,192 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1251622712] [2024-10-24 00:52:30,192 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 00:52:30,192 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 00:52:30,192 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 00:52:30,193 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 00:52:30,193 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=180, Unknown=0, NotChecked=0, Total=210 [2024-10-24 00:52:30,193 INFO L87 Difference]: Start difference. First operand 331 states and 517 transitions. Second operand has 5 states, 5 states have (on average 14.8) internal successors, (74), 5 states have internal predecessors, (74), 3 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2024-10-24 00:52:30,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 00:52:30,269 INFO L93 Difference]: Finished difference Result 655 states and 1027 transitions. [2024-10-24 00:52:30,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-24 00:52:30,269 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.8) internal successors, (74), 5 states have internal predecessors, (74), 3 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) Word has length 115 [2024-10-24 00:52:30,269 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 00:52:30,271 INFO L225 Difference]: With dead ends: 655 [2024-10-24 00:52:30,272 INFO L226 Difference]: Without dead ends: 333 [2024-10-24 00:52:30,272 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 150 GetRequests, 137 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=180, Unknown=0, NotChecked=0, Total=210 [2024-10-24 00:52:30,273 INFO L432 NwaCegarLoop]: 406 mSDtfsCounter, 2 mSDsluCounter, 1201 mSDsCounter, 0 mSdLazyCounter, 105 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 1607 SdHoareTripleChecker+Invalid, 105 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 105 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 00:52:30,273 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 1607 Invalid, 105 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 105 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 00:52:30,274 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 333 states. [2024-10-24 00:52:30,285 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 333 to 333. [2024-10-24 00:52:30,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 333 states, 252 states have (on average 1.5753968253968254) internal successors, (397), 257 states have internal predecessors, (397), 60 states have call successors, (60), 18 states have call predecessors, (60), 20 states have return successors, (66), 59 states have call predecessors, (66), 59 states have call successors, (66) [2024-10-24 00:52:30,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 333 states to 333 states and 523 transitions. [2024-10-24 00:52:30,287 INFO L78 Accepts]: Start accepts. Automaton has 333 states and 523 transitions. Word has length 115 [2024-10-24 00:52:30,287 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 00:52:30,287 INFO L471 AbstractCegarLoop]: Abstraction has 333 states and 523 transitions. [2024-10-24 00:52:30,288 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.8) internal successors, (74), 5 states have internal predecessors, (74), 3 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2024-10-24 00:52:30,288 INFO L276 IsEmpty]: Start isEmpty. Operand 333 states and 523 transitions. [2024-10-24 00:52:30,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2024-10-24 00:52:30,289 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 00:52:30,289 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 00:52:30,304 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-10-24 00:52:30,490 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 [2024-10-24 00:52:30,490 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 00:52:30,490 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 00:52:30,491 INFO L85 PathProgramCache]: Analyzing trace with hash 815103247, now seen corresponding path program 1 times [2024-10-24 00:52:30,491 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 00:52:30,491 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1008390105] [2024-10-24 00:52:30,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 00:52:30,491 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 00:52:30,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:30,599 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 00:52:30,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:30,606 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 00:52:30,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:30,608 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 00:52:30,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:30,611 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-24 00:52:30,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:30,613 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-24 00:52:30,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:30,630 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-10-24 00:52:30,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:30,639 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-24 00:52:30,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:30,648 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-24 00:52:30,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:30,649 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-10-24 00:52:30,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:30,651 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-10-24 00:52:30,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:30,652 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-10-24 00:52:30,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:30,654 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-10-24 00:52:30,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:30,658 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-10-24 00:52:30,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:30,661 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-10-24 00:52:30,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:30,666 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-10-24 00:52:30,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:30,668 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-10-24 00:52:30,668 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 00:52:30,668 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1008390105] [2024-10-24 00:52:30,668 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1008390105] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 00:52:30,668 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 00:52:30,668 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-10-24 00:52:30,668 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [970840992] [2024-10-24 00:52:30,668 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 00:52:30,668 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-24 00:52:30,669 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 00:52:30,669 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-24 00:52:30,669 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-10-24 00:52:30,669 INFO L87 Difference]: Start difference. First operand 333 states and 523 transitions. Second operand has 9 states, 8 states have (on average 8.75) internal successors, (70), 5 states have internal predecessors, (70), 3 states have call successors, (17), 6 states have call predecessors, (17), 2 states have return successors, (15), 2 states have call predecessors, (15), 3 states have call successors, (15) [2024-10-24 00:52:32,133 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 00:52:32,133 INFO L93 Difference]: Finished difference Result 763 states and 1208 transitions. [2024-10-24 00:52:32,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-10-24 00:52:32,133 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 8.75) internal successors, (70), 5 states have internal predecessors, (70), 3 states have call successors, (17), 6 states have call predecessors, (17), 2 states have return successors, (15), 2 states have call predecessors, (15), 3 states have call successors, (15) Word has length 116 [2024-10-24 00:52:32,134 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 00:52:32,137 INFO L225 Difference]: With dead ends: 763 [2024-10-24 00:52:32,137 INFO L226 Difference]: Without dead ends: 449 [2024-10-24 00:52:32,138 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=72, Invalid=200, Unknown=0, NotChecked=0, Total=272 [2024-10-24 00:52:32,139 INFO L432 NwaCegarLoop]: 161 mSDtfsCounter, 874 mSDsluCounter, 807 mSDsCounter, 0 mSdLazyCounter, 2223 mSolverCounterSat, 302 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 875 SdHoareTripleChecker+Valid, 968 SdHoareTripleChecker+Invalid, 2525 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 302 IncrementalHoareTripleChecker+Valid, 2223 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-10-24 00:52:32,139 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [875 Valid, 968 Invalid, 2525 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [302 Valid, 2223 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-10-24 00:52:32,140 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 449 states. [2024-10-24 00:52:32,167 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 449 to 333. [2024-10-24 00:52:32,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 333 states, 252 states have (on average 1.5753968253968254) internal successors, (397), 257 states have internal predecessors, (397), 60 states have call successors, (60), 18 states have call predecessors, (60), 20 states have return successors, (65), 59 states have call predecessors, (65), 59 states have call successors, (65) [2024-10-24 00:52:32,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 333 states to 333 states and 522 transitions. [2024-10-24 00:52:32,171 INFO L78 Accepts]: Start accepts. Automaton has 333 states and 522 transitions. Word has length 116 [2024-10-24 00:52:32,171 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 00:52:32,171 INFO L471 AbstractCegarLoop]: Abstraction has 333 states and 522 transitions. [2024-10-24 00:52:32,172 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 8.75) internal successors, (70), 5 states have internal predecessors, (70), 3 states have call successors, (17), 6 states have call predecessors, (17), 2 states have return successors, (15), 2 states have call predecessors, (15), 3 states have call successors, (15) [2024-10-24 00:52:32,172 INFO L276 IsEmpty]: Start isEmpty. Operand 333 states and 522 transitions. [2024-10-24 00:52:32,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2024-10-24 00:52:32,173 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 00:52:32,173 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 00:52:32,173 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-24 00:52:32,174 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 00:52:32,174 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 00:52:32,174 INFO L85 PathProgramCache]: Analyzing trace with hash 202155962, now seen corresponding path program 2 times [2024-10-24 00:52:32,174 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 00:52:32,174 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1351719723] [2024-10-24 00:52:32,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 00:52:32,174 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 00:52:32,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:32,269 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 00:52:32,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:32,280 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 00:52:32,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:32,282 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 00:52:32,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:32,284 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-24 00:52:32,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:32,285 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-24 00:52:32,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:32,299 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-24 00:52:32,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:32,307 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-10-24 00:52:32,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:32,318 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-24 00:52:32,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:32,319 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-10-24 00:52:32,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:32,320 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-10-24 00:52:32,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:32,321 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-24 00:52:32,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:32,322 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-10-24 00:52:32,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:32,324 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2024-10-24 00:52:32,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:32,325 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-10-24 00:52:32,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:32,326 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-10-24 00:52:32,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:32,327 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-10-24 00:52:32,327 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 00:52:32,327 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1351719723] [2024-10-24 00:52:32,328 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1351719723] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 00:52:32,328 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 00:52:32,328 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-10-24 00:52:32,328 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1697838951] [2024-10-24 00:52:32,328 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 00:52:32,328 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-24 00:52:32,328 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 00:52:32,328 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-24 00:52:32,329 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-10-24 00:52:32,329 INFO L87 Difference]: Start difference. First operand 333 states and 522 transitions. Second operand has 9 states, 8 states have (on average 8.875) internal successors, (71), 5 states have internal predecessors, (71), 3 states have call successors, (17), 6 states have call predecessors, (17), 2 states have return successors, (15), 2 states have call predecessors, (15), 3 states have call successors, (15) [2024-10-24 00:52:33,690 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 00:52:33,690 INFO L93 Difference]: Finished difference Result 765 states and 1211 transitions. [2024-10-24 00:52:33,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-10-24 00:52:33,691 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 8.875) internal successors, (71), 5 states have internal predecessors, (71), 3 states have call successors, (17), 6 states have call predecessors, (17), 2 states have return successors, (15), 2 states have call predecessors, (15), 3 states have call successors, (15) Word has length 117 [2024-10-24 00:52:33,691 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 00:52:33,693 INFO L225 Difference]: With dead ends: 765 [2024-10-24 00:52:33,693 INFO L226 Difference]: Without dead ends: 451 [2024-10-24 00:52:33,694 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=72, Invalid=200, Unknown=0, NotChecked=0, Total=272 [2024-10-24 00:52:33,694 INFO L432 NwaCegarLoop]: 160 mSDtfsCounter, 870 mSDsluCounter, 807 mSDsCounter, 0 mSdLazyCounter, 2219 mSolverCounterSat, 302 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 872 SdHoareTripleChecker+Valid, 967 SdHoareTripleChecker+Invalid, 2521 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 302 IncrementalHoareTripleChecker+Valid, 2219 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-10-24 00:52:33,694 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [872 Valid, 967 Invalid, 2521 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [302 Valid, 2219 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-10-24 00:52:33,695 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 451 states. [2024-10-24 00:52:33,713 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 451 to 335. [2024-10-24 00:52:33,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 335 states, 253 states have (on average 1.5731225296442688) internal successors, (398), 259 states have internal predecessors, (398), 60 states have call successors, (60), 18 states have call predecessors, (60), 21 states have return successors, (67), 59 states have call predecessors, (67), 59 states have call successors, (67) [2024-10-24 00:52:33,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 335 states to 335 states and 525 transitions. [2024-10-24 00:52:33,716 INFO L78 Accepts]: Start accepts. Automaton has 335 states and 525 transitions. Word has length 117 [2024-10-24 00:52:33,716 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 00:52:33,716 INFO L471 AbstractCegarLoop]: Abstraction has 335 states and 525 transitions. [2024-10-24 00:52:33,716 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 8.875) internal successors, (71), 5 states have internal predecessors, (71), 3 states have call successors, (17), 6 states have call predecessors, (17), 2 states have return successors, (15), 2 states have call predecessors, (15), 3 states have call successors, (15) [2024-10-24 00:52:33,716 INFO L276 IsEmpty]: Start isEmpty. Operand 335 states and 525 transitions. [2024-10-24 00:52:33,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2024-10-24 00:52:33,717 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 00:52:33,718 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 00:52:33,718 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-24 00:52:33,718 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 00:52:33,718 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 00:52:33,718 INFO L85 PathProgramCache]: Analyzing trace with hash -2031901496, now seen corresponding path program 1 times [2024-10-24 00:52:33,718 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 00:52:33,719 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1279532384] [2024-10-24 00:52:33,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 00:52:33,719 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 00:52:33,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:33,803 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 00:52:33,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:33,811 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 00:52:33,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:33,813 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 00:52:33,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:33,816 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-24 00:52:33,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:33,817 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-24 00:52:33,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:33,832 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-24 00:52:33,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:33,841 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-10-24 00:52:33,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:33,852 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-10-24 00:52:33,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:33,854 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-10-24 00:52:33,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:33,857 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-10-24 00:52:33,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:33,860 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-10-24 00:52:33,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:33,862 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-10-24 00:52:33,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:33,863 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-24 00:52:33,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:33,864 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-24 00:52:33,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:33,865 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-24 00:52:33,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:33,867 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-10-24 00:52:33,867 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 00:52:33,867 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1279532384] [2024-10-24 00:52:33,868 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1279532384] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 00:52:33,868 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 00:52:33,868 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-10-24 00:52:33,868 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [552182750] [2024-10-24 00:52:33,868 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 00:52:33,868 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-24 00:52:33,868 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 00:52:33,869 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-24 00:52:33,869 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-10-24 00:52:33,870 INFO L87 Difference]: Start difference. First operand 335 states and 525 transitions. Second operand has 9 states, 8 states have (on average 9.0) internal successors, (72), 5 states have internal predecessors, (72), 3 states have call successors, (17), 6 states have call predecessors, (17), 2 states have return successors, (15), 2 states have call predecessors, (15), 3 states have call successors, (15) [2024-10-24 00:52:35,286 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 00:52:35,286 INFO L93 Difference]: Finished difference Result 765 states and 1210 transitions. [2024-10-24 00:52:35,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-10-24 00:52:35,286 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 9.0) internal successors, (72), 5 states have internal predecessors, (72), 3 states have call successors, (17), 6 states have call predecessors, (17), 2 states have return successors, (15), 2 states have call predecessors, (15), 3 states have call successors, (15) Word has length 118 [2024-10-24 00:52:35,286 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 00:52:35,289 INFO L225 Difference]: With dead ends: 765 [2024-10-24 00:52:35,289 INFO L226 Difference]: Without dead ends: 451 [2024-10-24 00:52:35,290 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2024-10-24 00:52:35,290 INFO L432 NwaCegarLoop]: 157 mSDtfsCounter, 872 mSDsluCounter, 807 mSDsCounter, 0 mSdLazyCounter, 2206 mSolverCounterSat, 305 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 873 SdHoareTripleChecker+Valid, 964 SdHoareTripleChecker+Invalid, 2511 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 305 IncrementalHoareTripleChecker+Valid, 2206 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-10-24 00:52:35,291 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [873 Valid, 964 Invalid, 2511 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [305 Valid, 2206 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-10-24 00:52:35,291 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 451 states. [2024-10-24 00:52:35,306 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 451 to 335. [2024-10-24 00:52:35,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 335 states, 253 states have (on average 1.5731225296442688) internal successors, (398), 259 states have internal predecessors, (398), 60 states have call successors, (60), 18 states have call predecessors, (60), 21 states have return successors, (67), 59 states have call predecessors, (67), 59 states have call successors, (67) [2024-10-24 00:52:35,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 335 states to 335 states and 525 transitions. [2024-10-24 00:52:35,309 INFO L78 Accepts]: Start accepts. Automaton has 335 states and 525 transitions. Word has length 118 [2024-10-24 00:52:35,309 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 00:52:35,309 INFO L471 AbstractCegarLoop]: Abstraction has 335 states and 525 transitions. [2024-10-24 00:52:35,309 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 9.0) internal successors, (72), 5 states have internal predecessors, (72), 3 states have call successors, (17), 6 states have call predecessors, (17), 2 states have return successors, (15), 2 states have call predecessors, (15), 3 states have call successors, (15) [2024-10-24 00:52:35,310 INFO L276 IsEmpty]: Start isEmpty. Operand 335 states and 525 transitions. [2024-10-24 00:52:35,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2024-10-24 00:52:35,311 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 00:52:35,311 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 00:52:35,311 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-24 00:52:35,311 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 00:52:35,312 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 00:52:35,312 INFO L85 PathProgramCache]: Analyzing trace with hash -73326710, now seen corresponding path program 1 times [2024-10-24 00:52:35,312 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 00:52:35,312 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [905664418] [2024-10-24 00:52:35,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 00:52:35,312 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 00:52:35,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:35,417 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 00:52:35,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:35,424 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 00:52:35,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:35,426 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 00:52:35,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:35,427 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-24 00:52:35,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:35,429 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-24 00:52:35,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:35,448 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-24 00:52:35,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:35,478 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-10-24 00:52:35,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:35,489 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-10-24 00:52:35,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:35,491 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-10-24 00:52:35,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:35,492 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-10-24 00:52:35,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:35,493 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-10-24 00:52:35,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:35,494 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-10-24 00:52:35,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:35,495 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-24 00:52:35,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:35,496 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-24 00:52:35,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:35,497 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-24 00:52:35,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:35,499 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-10-24 00:52:35,499 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 00:52:35,499 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [905664418] [2024-10-24 00:52:35,499 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [905664418] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 00:52:35,499 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 00:52:35,499 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-10-24 00:52:35,499 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [907440217] [2024-10-24 00:52:35,499 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 00:52:35,500 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-10-24 00:52:35,500 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 00:52:35,500 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-10-24 00:52:35,500 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2024-10-24 00:52:35,501 INFO L87 Difference]: Start difference. First operand 335 states and 525 transitions. Second operand has 12 states, 11 states have (on average 6.818181818181818) internal successors, (75), 8 states have internal predecessors, (75), 4 states have call successors, (17), 6 states have call predecessors, (17), 3 states have return successors, (15), 3 states have call predecessors, (15), 4 states have call successors, (15) [2024-10-24 00:52:37,233 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 00:52:37,233 INFO L93 Difference]: Finished difference Result 763 states and 1205 transitions. [2024-10-24 00:52:37,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-24 00:52:37,234 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 6.818181818181818) internal successors, (75), 8 states have internal predecessors, (75), 4 states have call successors, (17), 6 states have call predecessors, (17), 3 states have return successors, (15), 3 states have call predecessors, (15), 4 states have call successors, (15) Word has length 118 [2024-10-24 00:52:37,234 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 00:52:37,237 INFO L225 Difference]: With dead ends: 763 [2024-10-24 00:52:37,237 INFO L226 Difference]: Without dead ends: 451 [2024-10-24 00:52:37,238 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=102, Invalid=404, Unknown=0, NotChecked=0, Total=506 [2024-10-24 00:52:37,238 INFO L432 NwaCegarLoop]: 158 mSDtfsCounter, 874 mSDsluCounter, 1184 mSDsCounter, 0 mSdLazyCounter, 3655 mSolverCounterSat, 307 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 875 SdHoareTripleChecker+Valid, 1342 SdHoareTripleChecker+Invalid, 3962 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 307 IncrementalHoareTripleChecker+Valid, 3655 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-10-24 00:52:37,239 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [875 Valid, 1342 Invalid, 3962 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [307 Valid, 3655 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-10-24 00:52:37,239 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 451 states. [2024-10-24 00:52:37,254 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 451 to 335. [2024-10-24 00:52:37,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 335 states, 253 states have (on average 1.5731225296442688) internal successors, (398), 259 states have internal predecessors, (398), 60 states have call successors, (60), 18 states have call predecessors, (60), 21 states have return successors, (66), 59 states have call predecessors, (66), 59 states have call successors, (66) [2024-10-24 00:52:37,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 335 states to 335 states and 524 transitions. [2024-10-24 00:52:37,257 INFO L78 Accepts]: Start accepts. Automaton has 335 states and 524 transitions. Word has length 118 [2024-10-24 00:52:37,257 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 00:52:37,257 INFO L471 AbstractCegarLoop]: Abstraction has 335 states and 524 transitions. [2024-10-24 00:52:37,258 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 6.818181818181818) internal successors, (75), 8 states have internal predecessors, (75), 4 states have call successors, (17), 6 states have call predecessors, (17), 3 states have return successors, (15), 3 states have call predecessors, (15), 4 states have call successors, (15) [2024-10-24 00:52:37,258 INFO L276 IsEmpty]: Start isEmpty. Operand 335 states and 524 transitions. [2024-10-24 00:52:37,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2024-10-24 00:52:37,259 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 00:52:37,259 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 00:52:37,259 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-24 00:52:37,259 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 00:52:37,259 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 00:52:37,260 INFO L85 PathProgramCache]: Analyzing trace with hash 683564979, now seen corresponding path program 2 times [2024-10-24 00:52:37,260 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 00:52:37,260 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [258330778] [2024-10-24 00:52:37,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 00:52:37,260 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 00:52:37,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:37,340 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 00:52:37,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:37,347 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 00:52:37,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:37,349 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 00:52:37,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:37,350 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-24 00:52:37,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:37,352 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-24 00:52:37,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:37,367 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-24 00:52:37,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:37,390 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-10-24 00:52:37,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:37,400 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-10-24 00:52:37,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:37,401 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-10-24 00:52:37,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:37,402 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-24 00:52:37,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:37,403 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-24 00:52:37,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:37,404 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-24 00:52:37,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:37,405 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-10-24 00:52:37,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:37,406 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-10-24 00:52:37,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:37,407 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-10-24 00:52:37,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:37,409 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-10-24 00:52:37,409 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 00:52:37,409 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [258330778] [2024-10-24 00:52:37,409 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [258330778] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 00:52:37,409 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 00:52:37,409 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-10-24 00:52:37,409 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [708195387] [2024-10-24 00:52:37,410 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 00:52:37,410 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-10-24 00:52:37,410 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 00:52:37,410 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-10-24 00:52:37,410 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2024-10-24 00:52:37,411 INFO L87 Difference]: Start difference. First operand 335 states and 524 transitions. Second operand has 12 states, 11 states have (on average 6.909090909090909) internal successors, (76), 8 states have internal predecessors, (76), 4 states have call successors, (17), 6 states have call predecessors, (17), 3 states have return successors, (15), 3 states have call predecessors, (15), 4 states have call successors, (15) [2024-10-24 00:52:39,114 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 00:52:39,114 INFO L93 Difference]: Finished difference Result 765 states and 1211 transitions. [2024-10-24 00:52:39,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-24 00:52:39,114 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 6.909090909090909) internal successors, (76), 8 states have internal predecessors, (76), 4 states have call successors, (17), 6 states have call predecessors, (17), 3 states have return successors, (15), 3 states have call predecessors, (15), 4 states have call successors, (15) Word has length 119 [2024-10-24 00:52:39,114 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 00:52:39,117 INFO L225 Difference]: With dead ends: 765 [2024-10-24 00:52:39,117 INFO L226 Difference]: Without dead ends: 453 [2024-10-24 00:52:39,118 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=102, Invalid=404, Unknown=0, NotChecked=0, Total=506 [2024-10-24 00:52:39,119 INFO L432 NwaCegarLoop]: 158 mSDtfsCounter, 870 mSDsluCounter, 1184 mSDsCounter, 0 mSdLazyCounter, 3699 mSolverCounterSat, 303 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 872 SdHoareTripleChecker+Valid, 1342 SdHoareTripleChecker+Invalid, 4002 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 303 IncrementalHoareTripleChecker+Valid, 3699 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-10-24 00:52:39,119 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [872 Valid, 1342 Invalid, 4002 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [303 Valid, 3699 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-10-24 00:52:39,119 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 453 states. [2024-10-24 00:52:39,134 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 453 to 337. [2024-10-24 00:52:39,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 337 states, 254 states have (on average 1.5708661417322836) internal successors, (399), 261 states have internal predecessors, (399), 60 states have call successors, (60), 18 states have call predecessors, (60), 22 states have return successors, (71), 59 states have call predecessors, (71), 59 states have call successors, (71) [2024-10-24 00:52:39,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 337 states to 337 states and 530 transitions. [2024-10-24 00:52:39,136 INFO L78 Accepts]: Start accepts. Automaton has 337 states and 530 transitions. Word has length 119 [2024-10-24 00:52:39,136 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 00:52:39,137 INFO L471 AbstractCegarLoop]: Abstraction has 337 states and 530 transitions. [2024-10-24 00:52:39,137 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 6.909090909090909) internal successors, (76), 8 states have internal predecessors, (76), 4 states have call successors, (17), 6 states have call predecessors, (17), 3 states have return successors, (15), 3 states have call predecessors, (15), 4 states have call successors, (15) [2024-10-24 00:52:39,137 INFO L276 IsEmpty]: Start isEmpty. Operand 337 states and 530 transitions. [2024-10-24 00:52:39,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2024-10-24 00:52:39,138 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 00:52:39,138 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 00:52:39,138 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-24 00:52:39,138 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 00:52:39,139 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 00:52:39,139 INFO L85 PathProgramCache]: Analyzing trace with hash -1326387773, now seen corresponding path program 1 times [2024-10-24 00:52:39,140 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 00:52:39,140 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2002328974] [2024-10-24 00:52:39,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 00:52:39,140 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 00:52:39,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:39,226 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 00:52:39,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:39,232 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 00:52:39,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:39,234 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 00:52:39,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:39,236 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-24 00:52:39,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:39,237 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-24 00:52:39,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:39,240 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-24 00:52:39,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:39,262 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-10-24 00:52:39,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:39,270 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-10-24 00:52:39,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:39,272 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 00:52:39,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:39,273 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-10-24 00:52:39,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:39,275 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-10-24 00:52:39,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:39,276 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-10-24 00:52:39,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:39,277 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-10-24 00:52:39,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:39,278 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-10-24 00:52:39,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:39,279 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-10-24 00:52:39,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:39,281 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2024-10-24 00:52:39,281 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 00:52:39,281 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2002328974] [2024-10-24 00:52:39,281 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2002328974] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 00:52:39,281 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 00:52:39,281 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-10-24 00:52:39,282 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2126248484] [2024-10-24 00:52:39,283 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 00:52:39,283 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-24 00:52:39,283 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 00:52:39,283 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-24 00:52:39,284 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-10-24 00:52:39,284 INFO L87 Difference]: Start difference. First operand 337 states and 530 transitions. Second operand has 9 states, 9 states have (on average 8.222222222222221) internal successors, (74), 5 states have internal predecessors, (74), 3 states have call successors, (17), 6 states have call predecessors, (17), 2 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2024-10-24 00:52:40,554 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 00:52:40,554 INFO L93 Difference]: Finished difference Result 767 states and 1214 transitions. [2024-10-24 00:52:40,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-10-24 00:52:40,554 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.222222222222221) internal successors, (74), 5 states have internal predecessors, (74), 3 states have call successors, (17), 6 states have call predecessors, (17), 2 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) Word has length 120 [2024-10-24 00:52:40,555 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 00:52:40,558 INFO L225 Difference]: With dead ends: 767 [2024-10-24 00:52:40,559 INFO L226 Difference]: Without dead ends: 453 [2024-10-24 00:52:40,561 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2024-10-24 00:52:40,561 INFO L432 NwaCegarLoop]: 154 mSDtfsCounter, 872 mSDsluCounter, 805 mSDsCounter, 0 mSdLazyCounter, 2207 mSolverCounterSat, 306 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 873 SdHoareTripleChecker+Valid, 959 SdHoareTripleChecker+Invalid, 2513 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 306 IncrementalHoareTripleChecker+Valid, 2207 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-10-24 00:52:40,561 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [873 Valid, 959 Invalid, 2513 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [306 Valid, 2207 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-10-24 00:52:40,562 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 453 states. [2024-10-24 00:52:40,581 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 453 to 337. [2024-10-24 00:52:40,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 337 states, 254 states have (on average 1.5708661417322836) internal successors, (399), 261 states have internal predecessors, (399), 60 states have call successors, (60), 18 states have call predecessors, (60), 22 states have return successors, (71), 59 states have call predecessors, (71), 59 states have call successors, (71) [2024-10-24 00:52:40,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 337 states to 337 states and 530 transitions. [2024-10-24 00:52:40,583 INFO L78 Accepts]: Start accepts. Automaton has 337 states and 530 transitions. Word has length 120 [2024-10-24 00:52:40,584 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 00:52:40,584 INFO L471 AbstractCegarLoop]: Abstraction has 337 states and 530 transitions. [2024-10-24 00:52:40,585 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.222222222222221) internal successors, (74), 5 states have internal predecessors, (74), 3 states have call successors, (17), 6 states have call predecessors, (17), 2 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2024-10-24 00:52:40,585 INFO L276 IsEmpty]: Start isEmpty. Operand 337 states and 530 transitions. [2024-10-24 00:52:40,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2024-10-24 00:52:40,586 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 00:52:40,586 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 00:52:40,586 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-24 00:52:40,586 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 00:52:40,587 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 00:52:40,587 INFO L85 PathProgramCache]: Analyzing trace with hash -183885307, now seen corresponding path program 1 times [2024-10-24 00:52:40,587 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 00:52:40,587 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [354013903] [2024-10-24 00:52:40,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 00:52:40,587 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 00:52:40,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:40,679 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 00:52:40,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:40,688 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 00:52:40,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:40,690 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 00:52:40,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:40,691 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-24 00:52:40,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:40,693 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-24 00:52:40,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:40,694 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-24 00:52:40,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:40,701 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-10-24 00:52:40,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:40,710 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-10-24 00:52:40,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:40,711 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 00:52:40,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:40,712 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-10-24 00:52:40,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:40,714 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-10-24 00:52:40,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:40,715 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-10-24 00:52:40,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:40,716 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-10-24 00:52:40,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:40,717 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-10-24 00:52:40,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:40,718 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-10-24 00:52:40,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:40,720 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2024-10-24 00:52:40,720 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 00:52:40,720 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [354013903] [2024-10-24 00:52:40,720 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [354013903] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 00:52:40,720 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1599839019] [2024-10-24 00:52:40,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 00:52:40,721 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 00:52:40,721 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 00:52:40,722 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) [2024-10-24 00:52:40,723 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-10-24 00:52:40,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:40,940 INFO L255 TraceCheckSpWp]: Trace formula consists of 1030 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-24 00:52:40,943 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 00:52:40,964 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2024-10-24 00:52:40,965 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-24 00:52:41,052 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2024-10-24 00:52:41,052 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1599839019] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-24 00:52:41,052 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-24 00:52:41,052 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 4, 4] total 11 [2024-10-24 00:52:41,052 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1559190746] [2024-10-24 00:52:41,053 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-24 00:52:41,053 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-10-24 00:52:41,053 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 00:52:41,053 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-10-24 00:52:41,054 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2024-10-24 00:52:41,054 INFO L87 Difference]: Start difference. First operand 337 states and 530 transitions. Second operand has 11 states, 11 states have (on average 9.909090909090908) internal successors, (109), 7 states have internal predecessors, (109), 2 states have call successors, (35), 6 states have call predecessors, (35), 2 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2024-10-24 00:52:42,198 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 00:52:42,198 INFO L93 Difference]: Finished difference Result 918 states and 1522 transitions. [2024-10-24 00:52:42,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-10-24 00:52:42,199 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 9.909090909090908) internal successors, (109), 7 states have internal predecessors, (109), 2 states have call successors, (35), 6 states have call predecessors, (35), 2 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) Word has length 120 [2024-10-24 00:52:42,199 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 00:52:42,203 INFO L225 Difference]: With dead ends: 918 [2024-10-24 00:52:42,203 INFO L226 Difference]: Without dead ends: 783 [2024-10-24 00:52:42,204 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 282 GetRequests, 267 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=66, Invalid=206, Unknown=0, NotChecked=0, Total=272 [2024-10-24 00:52:42,204 INFO L432 NwaCegarLoop]: 191 mSDtfsCounter, 1316 mSDsluCounter, 1035 mSDsCounter, 0 mSdLazyCounter, 1436 mSolverCounterSat, 468 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1361 SdHoareTripleChecker+Valid, 1226 SdHoareTripleChecker+Invalid, 1904 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 468 IncrementalHoareTripleChecker+Valid, 1436 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-10-24 00:52:42,204 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1361 Valid, 1226 Invalid, 1904 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [468 Valid, 1436 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-10-24 00:52:42,205 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 783 states. [2024-10-24 00:52:42,226 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 783 to 652. [2024-10-24 00:52:42,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 652 states, 505 states have (on average 1.6316831683168316) internal successors, (824), 512 states have internal predecessors, (824), 124 states have call successors, (124), 18 states have call predecessors, (124), 22 states have return successors, (145), 123 states have call predecessors, (145), 123 states have call successors, (145) [2024-10-24 00:52:42,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 652 states to 652 states and 1093 transitions. [2024-10-24 00:52:42,230 INFO L78 Accepts]: Start accepts. Automaton has 652 states and 1093 transitions. Word has length 120 [2024-10-24 00:52:42,230 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 00:52:42,230 INFO L471 AbstractCegarLoop]: Abstraction has 652 states and 1093 transitions. [2024-10-24 00:52:42,230 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 9.909090909090908) internal successors, (109), 7 states have internal predecessors, (109), 2 states have call successors, (35), 6 states have call predecessors, (35), 2 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2024-10-24 00:52:42,231 INFO L276 IsEmpty]: Start isEmpty. Operand 652 states and 1093 transitions. [2024-10-24 00:52:42,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2024-10-24 00:52:42,233 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 00:52:42,233 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 00:52:42,247 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-10-24 00:52:42,434 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 00:52:42,434 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 00:52:42,435 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 00:52:42,435 INFO L85 PathProgramCache]: Analyzing trace with hash -956417624, now seen corresponding path program 1 times [2024-10-24 00:52:42,435 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 00:52:42,435 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1547820841] [2024-10-24 00:52:42,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 00:52:42,435 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 00:52:42,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:42,485 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 00:52:42,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:42,496 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 00:52:42,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:42,498 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 00:52:42,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:42,499 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-24 00:52:42,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:42,500 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-24 00:52:42,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:42,502 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-24 00:52:42,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:42,508 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-10-24 00:52:42,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:42,514 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-10-24 00:52:42,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:42,515 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-24 00:52:42,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:42,516 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-10-24 00:52:42,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:42,517 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-10-24 00:52:42,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:42,519 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-10-24 00:52:42,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:42,520 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-10-24 00:52:42,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:42,521 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-10-24 00:52:42,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:42,522 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2024-10-24 00:52:42,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:42,523 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2024-10-24 00:52:42,524 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 00:52:42,524 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1547820841] [2024-10-24 00:52:42,524 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1547820841] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 00:52:42,524 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 00:52:42,524 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 00:52:42,524 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2125319265] [2024-10-24 00:52:42,524 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 00:52:42,525 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 00:52:42,525 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 00:52:42,525 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 00:52:42,525 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 00:52:42,526 INFO L87 Difference]: Start difference. First operand 652 states and 1093 transitions. Second operand has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 3 states have internal predecessors, (78), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2024-10-24 00:52:43,466 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 00:52:43,466 INFO L93 Difference]: Finished difference Result 1677 states and 2871 transitions. [2024-10-24 00:52:43,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-24 00:52:43,466 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 3 states have internal predecessors, (78), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 126 [2024-10-24 00:52:43,467 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 00:52:43,471 INFO L225 Difference]: With dead ends: 1677 [2024-10-24 00:52:43,471 INFO L226 Difference]: Without dead ends: 1085 [2024-10-24 00:52:43,473 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-10-24 00:52:43,473 INFO L432 NwaCegarLoop]: 169 mSDtfsCounter, 969 mSDsluCounter, 564 mSDsCounter, 0 mSdLazyCounter, 1267 mSolverCounterSat, 355 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 984 SdHoareTripleChecker+Valid, 733 SdHoareTripleChecker+Invalid, 1622 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 355 IncrementalHoareTripleChecker+Valid, 1267 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-10-24 00:52:43,474 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [984 Valid, 733 Invalid, 1622 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [355 Valid, 1267 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-10-24 00:52:43,475 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1085 states. [2024-10-24 00:52:43,501 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1085 to 964. [2024-10-24 00:52:43,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 964 states, 753 states have (on average 1.6414342629482073) internal successors, (1236), 760 states have internal predecessors, (1236), 188 states have call successors, (188), 18 states have call predecessors, (188), 22 states have return successors, (219), 187 states have call predecessors, (219), 187 states have call successors, (219) [2024-10-24 00:52:43,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 964 states to 964 states and 1643 transitions. [2024-10-24 00:52:43,506 INFO L78 Accepts]: Start accepts. Automaton has 964 states and 1643 transitions. Word has length 126 [2024-10-24 00:52:43,506 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 00:52:43,506 INFO L471 AbstractCegarLoop]: Abstraction has 964 states and 1643 transitions. [2024-10-24 00:52:43,506 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 3 states have internal predecessors, (78), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2024-10-24 00:52:43,506 INFO L276 IsEmpty]: Start isEmpty. Operand 964 states and 1643 transitions. [2024-10-24 00:52:43,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2024-10-24 00:52:43,509 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 00:52:43,510 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 00:52:43,510 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-10-24 00:52:43,510 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 00:52:43,510 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 00:52:43,510 INFO L85 PathProgramCache]: Analyzing trace with hash 1057405967, now seen corresponding path program 1 times [2024-10-24 00:52:43,510 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 00:52:43,510 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [238008278] [2024-10-24 00:52:43,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 00:52:43,511 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 00:52:43,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:43,560 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 00:52:43,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:43,569 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 00:52:43,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:43,571 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 00:52:43,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:43,573 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-24 00:52:43,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:43,574 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-24 00:52:43,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:43,576 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-24 00:52:43,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:43,582 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 00:52:43,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:43,588 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-10-24 00:52:43,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:43,589 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-10-24 00:52:43,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:43,591 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-10-24 00:52:43,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:43,591 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-10-24 00:52:43,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:43,593 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-10-24 00:52:43,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:43,594 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-10-24 00:52:43,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:43,595 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-10-24 00:52:43,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:43,597 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-10-24 00:52:43,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:43,598 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2024-10-24 00:52:43,598 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 00:52:43,598 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [238008278] [2024-10-24 00:52:43,598 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [238008278] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 00:52:43,598 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 00:52:43,599 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 00:52:43,599 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2031713968] [2024-10-24 00:52:43,599 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 00:52:43,599 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 00:52:43,599 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 00:52:43,600 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 00:52:43,600 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 00:52:43,600 INFO L87 Difference]: Start difference. First operand 964 states and 1643 transitions. Second operand has 7 states, 7 states have (on average 11.285714285714286) internal successors, (79), 3 states have internal predecessors, (79), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2024-10-24 00:52:44,598 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 00:52:44,598 INFO L93 Difference]: Finished difference Result 2426 states and 4189 transitions. [2024-10-24 00:52:44,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-24 00:52:44,598 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.285714285714286) internal successors, (79), 3 states have internal predecessors, (79), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 127 [2024-10-24 00:52:44,598 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 00:52:44,608 INFO L225 Difference]: With dead ends: 2426 [2024-10-24 00:52:44,609 INFO L226 Difference]: Without dead ends: 1572 [2024-10-24 00:52:44,611 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-10-24 00:52:44,612 INFO L432 NwaCegarLoop]: 167 mSDtfsCounter, 967 mSDsluCounter, 553 mSDsCounter, 0 mSdLazyCounter, 1284 mSolverCounterSat, 359 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 982 SdHoareTripleChecker+Valid, 720 SdHoareTripleChecker+Invalid, 1643 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 359 IncrementalHoareTripleChecker+Valid, 1284 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-10-24 00:52:44,612 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [982 Valid, 720 Invalid, 1643 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [359 Valid, 1284 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-10-24 00:52:44,613 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1572 states. [2024-10-24 00:52:44,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1572 to 1451. [2024-10-24 00:52:44,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1451 states, 1145 states have (on average 1.6471615720524018) internal successors, (1886), 1152 states have internal predecessors, (1886), 283 states have call successors, (283), 18 states have call predecessors, (283), 22 states have return successors, (314), 282 states have call predecessors, (314), 282 states have call successors, (314) [2024-10-24 00:52:44,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1451 states to 1451 states and 2483 transitions. [2024-10-24 00:52:44,665 INFO L78 Accepts]: Start accepts. Automaton has 1451 states and 2483 transitions. Word has length 127 [2024-10-24 00:52:44,665 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 00:52:44,665 INFO L471 AbstractCegarLoop]: Abstraction has 1451 states and 2483 transitions. [2024-10-24 00:52:44,665 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.285714285714286) internal successors, (79), 3 states have internal predecessors, (79), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2024-10-24 00:52:44,665 INFO L276 IsEmpty]: Start isEmpty. Operand 1451 states and 2483 transitions. [2024-10-24 00:52:44,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2024-10-24 00:52:44,672 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 00:52:44,672 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 00:52:44,672 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-10-24 00:52:44,672 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 00:52:44,673 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 00:52:44,673 INFO L85 PathProgramCache]: Analyzing trace with hash -1376561050, now seen corresponding path program 1 times [2024-10-24 00:52:44,673 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 00:52:44,673 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1416727192] [2024-10-24 00:52:44,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 00:52:44,673 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 00:52:44,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:44,717 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 00:52:44,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:44,724 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 00:52:44,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:44,727 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 00:52:44,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:44,728 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-24 00:52:44,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:44,730 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-24 00:52:44,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:44,732 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-24 00:52:44,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:44,738 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-10-24 00:52:44,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:44,743 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 00:52:44,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:44,744 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-10-24 00:52:44,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:44,747 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-10-24 00:52:44,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:44,748 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-24 00:52:44,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:44,749 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-10-24 00:52:44,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:44,751 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-10-24 00:52:44,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:44,752 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-10-24 00:52:44,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:44,753 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-10-24 00:52:44,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:44,754 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2024-10-24 00:52:44,754 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 00:52:44,755 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1416727192] [2024-10-24 00:52:44,755 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1416727192] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 00:52:44,755 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 00:52:44,755 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 00:52:44,755 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [486190642] [2024-10-24 00:52:44,755 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 00:52:44,755 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 00:52:44,756 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 00:52:44,757 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 00:52:44,757 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 00:52:44,757 INFO L87 Difference]: Start difference. First operand 1451 states and 2483 transitions. Second operand has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 3 states have internal predecessors, (80), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2024-10-24 00:52:45,728 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 00:52:45,728 INFO L93 Difference]: Finished difference Result 3528 states and 6148 transitions. [2024-10-24 00:52:45,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-24 00:52:45,729 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 3 states have internal predecessors, (80), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 128 [2024-10-24 00:52:45,729 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 00:52:45,740 INFO L225 Difference]: With dead ends: 3528 [2024-10-24 00:52:45,741 INFO L226 Difference]: Without dead ends: 2307 [2024-10-24 00:52:45,745 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-10-24 00:52:45,745 INFO L432 NwaCegarLoop]: 162 mSDtfsCounter, 965 mSDsluCounter, 547 mSDsCounter, 0 mSdLazyCounter, 1263 mSolverCounterSat, 355 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 980 SdHoareTripleChecker+Valid, 709 SdHoareTripleChecker+Invalid, 1618 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 355 IncrementalHoareTripleChecker+Valid, 1263 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-10-24 00:52:45,746 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [980 Valid, 709 Invalid, 1618 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [355 Valid, 1263 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-10-24 00:52:45,748 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2307 states. [2024-10-24 00:52:45,805 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2307 to 2186. [2024-10-24 00:52:45,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2186 states, 1757 states have (on average 1.6522481502561184) internal successors, (2903), 1764 states have internal predecessors, (2903), 406 states have call successors, (406), 18 states have call predecessors, (406), 22 states have return successors, (453), 405 states have call predecessors, (453), 405 states have call successors, (453) [2024-10-24 00:52:45,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2186 states to 2186 states and 3762 transitions. [2024-10-24 00:52:45,814 INFO L78 Accepts]: Start accepts. Automaton has 2186 states and 3762 transitions. Word has length 128 [2024-10-24 00:52:45,814 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 00:52:45,815 INFO L471 AbstractCegarLoop]: Abstraction has 2186 states and 3762 transitions. [2024-10-24 00:52:45,815 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 3 states have internal predecessors, (80), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2024-10-24 00:52:45,815 INFO L276 IsEmpty]: Start isEmpty. Operand 2186 states and 3762 transitions. [2024-10-24 00:52:45,823 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2024-10-24 00:52:45,824 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 00:52:45,824 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 00:52:45,824 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-10-24 00:52:45,824 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 00:52:45,824 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 00:52:45,825 INFO L85 PathProgramCache]: Analyzing trace with hash 1862841902, now seen corresponding path program 1 times [2024-10-24 00:52:45,825 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 00:52:45,825 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1665341476] [2024-10-24 00:52:45,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 00:52:45,825 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 00:52:45,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:45,872 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 00:52:45,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:45,879 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 00:52:45,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:45,881 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 00:52:45,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:45,882 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-24 00:52:45,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:45,884 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-24 00:52:45,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:45,885 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-24 00:52:45,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:45,891 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-10-24 00:52:45,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:45,898 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-10-24 00:52:45,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:45,900 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-10-24 00:52:45,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:45,902 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-10-24 00:52:45,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:45,904 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-10-24 00:52:45,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:45,906 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-10-24 00:52:45,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:45,907 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-10-24 00:52:45,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:45,907 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-10-24 00:52:45,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:45,909 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2024-10-24 00:52:45,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:45,912 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2024-10-24 00:52:45,912 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 00:52:45,912 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1665341476] [2024-10-24 00:52:45,912 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1665341476] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 00:52:45,912 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 00:52:45,912 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 00:52:45,912 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1486024892] [2024-10-24 00:52:45,912 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 00:52:45,912 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 00:52:45,912 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 00:52:45,913 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 00:52:45,913 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 00:52:45,913 INFO L87 Difference]: Start difference. First operand 2186 states and 3762 transitions. Second operand has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 3 states have internal predecessors, (81), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2024-10-24 00:52:46,843 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 00:52:46,843 INFO L93 Difference]: Finished difference Result 5238 states and 9198 transitions. [2024-10-24 00:52:46,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-24 00:52:46,848 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 3 states have internal predecessors, (81), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 129 [2024-10-24 00:52:46,848 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 00:52:46,863 INFO L225 Difference]: With dead ends: 5238 [2024-10-24 00:52:46,863 INFO L226 Difference]: Without dead ends: 3479 [2024-10-24 00:52:46,868 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-10-24 00:52:46,869 INFO L432 NwaCegarLoop]: 162 mSDtfsCounter, 963 mSDsluCounter, 547 mSDsCounter, 0 mSdLazyCounter, 1263 mSolverCounterSat, 355 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 978 SdHoareTripleChecker+Valid, 709 SdHoareTripleChecker+Invalid, 1618 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 355 IncrementalHoareTripleChecker+Valid, 1263 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-10-24 00:52:46,869 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [978 Valid, 709 Invalid, 1618 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [355 Valid, 1263 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-10-24 00:52:46,871 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3479 states. [2024-10-24 00:52:46,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3479 to 3358. [2024-10-24 00:52:46,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3358 states, 2750 states have (on average 1.6556363636363636) internal successors, (4553), 2757 states have internal predecessors, (4553), 585 states have call successors, (585), 18 states have call predecessors, (585), 22 states have return successors, (658), 584 states have call predecessors, (658), 584 states have call successors, (658) [2024-10-24 00:52:46,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3358 states to 3358 states and 5796 transitions. [2024-10-24 00:52:46,959 INFO L78 Accepts]: Start accepts. Automaton has 3358 states and 5796 transitions. Word has length 129 [2024-10-24 00:52:46,959 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 00:52:46,959 INFO L471 AbstractCegarLoop]: Abstraction has 3358 states and 5796 transitions. [2024-10-24 00:52:46,959 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 3 states have internal predecessors, (81), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2024-10-24 00:52:46,960 INFO L276 IsEmpty]: Start isEmpty. Operand 3358 states and 5796 transitions. [2024-10-24 00:52:46,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2024-10-24 00:52:46,973 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 00:52:46,973 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 00:52:46,973 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-10-24 00:52:46,975 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 00:52:46,975 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 00:52:46,975 INFO L85 PathProgramCache]: Analyzing trace with hash 260159946, now seen corresponding path program 1 times [2024-10-24 00:52:46,975 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 00:52:46,975 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [957390827] [2024-10-24 00:52:46,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 00:52:46,975 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 00:52:46,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:47,015 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 00:52:47,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:47,022 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 00:52:47,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:47,026 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 00:52:47,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:47,027 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-24 00:52:47,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:47,029 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-24 00:52:47,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:47,030 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-24 00:52:47,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:47,037 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-10-24 00:52:47,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:47,044 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-10-24 00:52:47,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:47,045 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-10-24 00:52:47,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:47,046 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-10-24 00:52:47,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:47,047 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2024-10-24 00:52:47,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:47,048 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-10-24 00:52:47,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:47,049 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-24 00:52:47,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:47,050 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-10-24 00:52:47,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:47,052 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-10-24 00:52:47,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:47,053 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2024-10-24 00:52:47,053 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 00:52:47,053 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [957390827] [2024-10-24 00:52:47,053 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [957390827] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 00:52:47,053 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 00:52:47,054 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 00:52:47,054 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1023896057] [2024-10-24 00:52:47,054 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 00:52:47,054 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 00:52:47,054 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 00:52:47,055 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 00:52:47,055 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 00:52:47,055 INFO L87 Difference]: Start difference. First operand 3358 states and 5796 transitions. Second operand has 7 states, 7 states have (on average 11.714285714285714) internal successors, (82), 3 states have internal predecessors, (82), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2024-10-24 00:52:48,009 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 00:52:48,009 INFO L93 Difference]: Finished difference Result 8093 states and 14252 transitions. [2024-10-24 00:52:48,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-24 00:52:48,009 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.714285714285714) internal successors, (82), 3 states have internal predecessors, (82), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 130 [2024-10-24 00:52:48,009 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 00:52:48,032 INFO L225 Difference]: With dead ends: 8093 [2024-10-24 00:52:48,032 INFO L226 Difference]: Without dead ends: 5449 [2024-10-24 00:52:48,040 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-10-24 00:52:48,041 INFO L432 NwaCegarLoop]: 171 mSDtfsCounter, 961 mSDsluCounter, 553 mSDsCounter, 0 mSdLazyCounter, 1295 mSolverCounterSat, 359 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 976 SdHoareTripleChecker+Valid, 724 SdHoareTripleChecker+Invalid, 1654 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 359 IncrementalHoareTripleChecker+Valid, 1295 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-10-24 00:52:48,041 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [976 Valid, 724 Invalid, 1654 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [359 Valid, 1295 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-10-24 00:52:48,045 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5449 states. [2024-10-24 00:52:48,196 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5449 to 5328. [2024-10-24 00:52:48,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5328 states, 4344 states have (on average 1.6445672191528544) internal successors, (7144), 4351 states have internal predecessors, (7144), 961 states have call successors, (961), 18 states have call predecessors, (961), 22 states have return successors, (1078), 960 states have call predecessors, (1078), 960 states have call successors, (1078) [2024-10-24 00:52:48,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5328 states to 5328 states and 9183 transitions. [2024-10-24 00:52:48,215 INFO L78 Accepts]: Start accepts. Automaton has 5328 states and 9183 transitions. Word has length 130 [2024-10-24 00:52:48,215 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 00:52:48,215 INFO L471 AbstractCegarLoop]: Abstraction has 5328 states and 9183 transitions. [2024-10-24 00:52:48,216 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.714285714285714) internal successors, (82), 3 states have internal predecessors, (82), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2024-10-24 00:52:48,216 INFO L276 IsEmpty]: Start isEmpty. Operand 5328 states and 9183 transitions. [2024-10-24 00:52:48,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2024-10-24 00:52:48,230 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 00:52:48,231 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 00:52:48,231 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-10-24 00:52:48,231 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 00:52:48,231 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 00:52:48,231 INFO L85 PathProgramCache]: Analyzing trace with hash 903734474, now seen corresponding path program 1 times [2024-10-24 00:52:48,231 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 00:52:48,232 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1427679055] [2024-10-24 00:52:48,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 00:52:48,232 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 00:52:48,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:48,271 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 00:52:48,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:48,278 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 00:52:48,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:48,280 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 00:52:48,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:48,282 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-24 00:52:48,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:48,283 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-24 00:52:48,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:48,285 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-24 00:52:48,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:48,292 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-10-24 00:52:48,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:48,299 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-10-24 00:52:48,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:48,300 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-10-24 00:52:48,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:48,301 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-24 00:52:48,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:48,302 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-24 00:52:48,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:48,303 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-24 00:52:48,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:48,304 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-10-24 00:52:48,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:48,305 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-10-24 00:52:48,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:48,306 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-10-24 00:52:48,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:48,307 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2024-10-24 00:52:48,307 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 00:52:48,307 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1427679055] [2024-10-24 00:52:48,307 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1427679055] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 00:52:48,307 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 00:52:48,307 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 00:52:48,308 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [933722587] [2024-10-24 00:52:48,308 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 00:52:48,309 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 00:52:48,309 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 00:52:48,309 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 00:52:48,309 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 00:52:48,310 INFO L87 Difference]: Start difference. First operand 5328 states and 9183 transitions. Second operand has 7 states, 7 states have (on average 11.857142857142858) internal successors, (83), 3 states have internal predecessors, (83), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2024-10-24 00:52:49,363 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 00:52:49,363 INFO L93 Difference]: Finished difference Result 13230 states and 23273 transitions. [2024-10-24 00:52:49,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-24 00:52:49,365 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.857142857142858) internal successors, (83), 3 states have internal predecessors, (83), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 131 [2024-10-24 00:52:49,365 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 00:52:49,401 INFO L225 Difference]: With dead ends: 13230 [2024-10-24 00:52:49,402 INFO L226 Difference]: Without dead ends: 8982 [2024-10-24 00:52:49,415 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-10-24 00:52:49,417 INFO L432 NwaCegarLoop]: 162 mSDtfsCounter, 959 mSDsluCounter, 552 mSDsCounter, 0 mSdLazyCounter, 1256 mSolverCounterSat, 363 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 974 SdHoareTripleChecker+Valid, 714 SdHoareTripleChecker+Invalid, 1619 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 363 IncrementalHoareTripleChecker+Valid, 1256 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-10-24 00:52:49,417 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [974 Valid, 714 Invalid, 1619 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [363 Valid, 1256 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-10-24 00:52:49,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8982 states. [2024-10-24 00:52:49,663 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8982 to 8861. [2024-10-24 00:52:49,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8861 states, 7271 states have (on average 1.64214000825196) internal successors, (11940), 7278 states have internal predecessors, (11940), 1567 states have call successors, (1567), 18 states have call predecessors, (1567), 22 states have return successors, (1762), 1566 states have call predecessors, (1762), 1566 states have call successors, (1762) [2024-10-24 00:52:49,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8861 states to 8861 states and 15269 transitions. [2024-10-24 00:52:49,694 INFO L78 Accepts]: Start accepts. Automaton has 8861 states and 15269 transitions. Word has length 131 [2024-10-24 00:52:49,694 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 00:52:49,695 INFO L471 AbstractCegarLoop]: Abstraction has 8861 states and 15269 transitions. [2024-10-24 00:52:49,695 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.857142857142858) internal successors, (83), 3 states have internal predecessors, (83), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2024-10-24 00:52:49,695 INFO L276 IsEmpty]: Start isEmpty. Operand 8861 states and 15269 transitions. [2024-10-24 00:52:49,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2024-10-24 00:52:49,715 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 00:52:49,715 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 00:52:49,715 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-10-24 00:52:49,715 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 00:52:49,716 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 00:52:49,716 INFO L85 PathProgramCache]: Analyzing trace with hash -435756612, now seen corresponding path program 1 times [2024-10-24 00:52:49,716 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 00:52:49,716 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1792178856] [2024-10-24 00:52:49,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 00:52:49,716 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 00:52:49,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:49,755 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 00:52:49,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:49,762 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 00:52:49,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:49,763 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 00:52:49,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:49,765 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-24 00:52:49,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:49,766 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-24 00:52:49,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:49,767 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-24 00:52:49,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:49,774 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-10-24 00:52:49,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:49,780 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-10-24 00:52:49,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:49,781 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-24 00:52:49,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:49,782 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-10-24 00:52:49,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:49,783 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-10-24 00:52:49,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:49,784 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-10-24 00:52:49,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:49,785 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-10-24 00:52:49,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:49,786 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2024-10-24 00:52:49,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:49,787 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2024-10-24 00:52:49,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:49,789 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2024-10-24 00:52:49,789 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 00:52:49,789 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1792178856] [2024-10-24 00:52:49,789 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1792178856] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 00:52:49,789 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 00:52:49,789 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 00:52:49,789 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2110760348] [2024-10-24 00:52:49,789 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 00:52:49,790 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 00:52:49,790 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 00:52:49,790 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 00:52:49,790 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 00:52:49,791 INFO L87 Difference]: Start difference. First operand 8861 states and 15269 transitions. Second operand has 7 states, 7 states have (on average 12.0) internal successors, (84), 3 states have internal predecessors, (84), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2024-10-24 00:52:50,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 00:52:50,990 INFO L93 Difference]: Finished difference Result 23002 states and 40407 transitions. [2024-10-24 00:52:50,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-24 00:52:50,990 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.0) internal successors, (84), 3 states have internal predecessors, (84), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 132 [2024-10-24 00:52:50,990 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 00:52:51,034 INFO L225 Difference]: With dead ends: 23002 [2024-10-24 00:52:51,034 INFO L226 Difference]: Without dead ends: 15654 [2024-10-24 00:52:51,052 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-10-24 00:52:51,053 INFO L432 NwaCegarLoop]: 175 mSDtfsCounter, 957 mSDsluCounter, 579 mSDsCounter, 0 mSdLazyCounter, 1286 mSolverCounterSat, 358 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 972 SdHoareTripleChecker+Valid, 754 SdHoareTripleChecker+Invalid, 1644 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 358 IncrementalHoareTripleChecker+Valid, 1286 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-10-24 00:52:51,053 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [972 Valid, 754 Invalid, 1644 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [358 Valid, 1286 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-10-24 00:52:51,064 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15654 states. [2024-10-24 00:52:51,534 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15654 to 15533. [2024-10-24 00:52:51,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15533 states, 12740 states have (on average 1.6327315541601255) internal successors, (20801), 12747 states have internal predecessors, (20801), 2770 states have call successors, (2770), 18 states have call predecessors, (2770), 22 states have return successors, (3109), 2769 states have call predecessors, (3109), 2769 states have call successors, (3109) [2024-10-24 00:52:51,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15533 states to 15533 states and 26680 transitions. [2024-10-24 00:52:51,607 INFO L78 Accepts]: Start accepts. Automaton has 15533 states and 26680 transitions. Word has length 132 [2024-10-24 00:52:51,607 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 00:52:51,607 INFO L471 AbstractCegarLoop]: Abstraction has 15533 states and 26680 transitions. [2024-10-24 00:52:51,608 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.0) internal successors, (84), 3 states have internal predecessors, (84), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2024-10-24 00:52:51,608 INFO L276 IsEmpty]: Start isEmpty. Operand 15533 states and 26680 transitions. [2024-10-24 00:52:51,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2024-10-24 00:52:51,643 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 00:52:51,643 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 00:52:51,643 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-10-24 00:52:51,643 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 00:52:51,643 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 00:52:51,643 INFO L85 PathProgramCache]: Analyzing trace with hash 1212901833, now seen corresponding path program 1 times [2024-10-24 00:52:51,644 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 00:52:51,644 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1568630222] [2024-10-24 00:52:51,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 00:52:51,644 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 00:52:51,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:51,685 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 00:52:51,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:51,693 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 00:52:51,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:51,695 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 00:52:51,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:51,697 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-24 00:52:51,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:51,698 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-24 00:52:51,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:51,699 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-24 00:52:51,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:51,707 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 00:52:51,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:51,714 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-24 00:52:51,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:51,715 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-10-24 00:52:51,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:51,716 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-10-24 00:52:51,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:51,717 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-10-24 00:52:51,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:51,718 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-10-24 00:52:51,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:51,719 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-10-24 00:52:51,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:51,720 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-10-24 00:52:51,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:51,721 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2024-10-24 00:52:51,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:51,722 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2024-10-24 00:52:51,723 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 00:52:51,723 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1568630222] [2024-10-24 00:52:51,723 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1568630222] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 00:52:51,723 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 00:52:51,723 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 00:52:51,723 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2146773369] [2024-10-24 00:52:51,723 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 00:52:51,724 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 00:52:51,724 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 00:52:51,724 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 00:52:51,724 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 00:52:51,724 INFO L87 Difference]: Start difference. First operand 15533 states and 26680 transitions. Second operand has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 3 states have internal predecessors, (85), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2024-10-24 00:52:53,090 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 00:52:53,090 INFO L93 Difference]: Finished difference Result 41169 states and 72207 transitions. [2024-10-24 00:52:53,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-24 00:52:53,091 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 3 states have internal predecessors, (85), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 133 [2024-10-24 00:52:53,091 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 00:52:53,167 INFO L225 Difference]: With dead ends: 41169 [2024-10-24 00:52:53,167 INFO L226 Difference]: Without dead ends: 27769 [2024-10-24 00:52:53,194 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-10-24 00:52:53,195 INFO L432 NwaCegarLoop]: 159 mSDtfsCounter, 955 mSDsluCounter, 548 mSDsCounter, 0 mSdLazyCounter, 1260 mSolverCounterSat, 362 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 970 SdHoareTripleChecker+Valid, 707 SdHoareTripleChecker+Invalid, 1622 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 362 IncrementalHoareTripleChecker+Valid, 1260 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-10-24 00:52:53,195 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [970 Valid, 707 Invalid, 1622 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [362 Valid, 1260 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-10-24 00:52:53,210 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27769 states. [2024-10-24 00:52:54,039 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27769 to 27648. [2024-10-24 00:52:54,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27648 states, 22816 states have (on average 1.6289007713884993) internal successors, (37165), 22823 states have internal predecessors, (37165), 4809 states have call successors, (4809), 18 states have call predecessors, (4809), 22 states have return successors, (5422), 4808 states have call predecessors, (5422), 4808 states have call successors, (5422) [2024-10-24 00:52:54,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27648 states to 27648 states and 47396 transitions. [2024-10-24 00:52:54,174 INFO L78 Accepts]: Start accepts. Automaton has 27648 states and 47396 transitions. Word has length 133 [2024-10-24 00:52:54,174 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 00:52:54,174 INFO L471 AbstractCegarLoop]: Abstraction has 27648 states and 47396 transitions. [2024-10-24 00:52:54,175 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 3 states have internal predecessors, (85), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2024-10-24 00:52:54,175 INFO L276 IsEmpty]: Start isEmpty. Operand 27648 states and 47396 transitions. [2024-10-24 00:52:54,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-10-24 00:52:54,212 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 00:52:54,212 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 00:52:54,212 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-10-24 00:52:54,212 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 00:52:54,213 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 00:52:54,213 INFO L85 PathProgramCache]: Analyzing trace with hash 1300165562, now seen corresponding path program 1 times [2024-10-24 00:52:54,213 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 00:52:54,213 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1737583703] [2024-10-24 00:52:54,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 00:52:54,213 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 00:52:54,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:54,271 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 00:52:54,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:54,279 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 00:52:54,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:54,281 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 00:52:54,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:54,283 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-24 00:52:54,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:54,285 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-24 00:52:54,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:54,287 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-24 00:52:54,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:54,294 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-10-24 00:52:54,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:54,302 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-24 00:52:54,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:54,304 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-10-24 00:52:54,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:54,305 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-24 00:52:54,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:54,307 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-10-24 00:52:54,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:54,308 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-10-24 00:52:54,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:54,309 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-10-24 00:52:54,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:54,310 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-10-24 00:52:54,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:54,311 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2024-10-24 00:52:54,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:54,313 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2024-10-24 00:52:54,314 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 00:52:54,314 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1737583703] [2024-10-24 00:52:54,314 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1737583703] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 00:52:54,314 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 00:52:54,314 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 00:52:54,314 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1099938494] [2024-10-24 00:52:54,315 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 00:52:54,315 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 00:52:54,315 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 00:52:54,316 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 00:52:54,316 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 00:52:54,316 INFO L87 Difference]: Start difference. First operand 27648 states and 47396 transitions. Second operand has 7 states, 7 states have (on average 12.285714285714286) internal successors, (86), 3 states have internal predecessors, (86), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2024-10-24 00:52:56,456 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 00:52:56,456 INFO L93 Difference]: Finished difference Result 75361 states and 131396 transitions. [2024-10-24 00:52:56,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-24 00:52:56,457 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.285714285714286) internal successors, (86), 3 states have internal predecessors, (86), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 134 [2024-10-24 00:52:56,457 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 00:52:56,612 INFO L225 Difference]: With dead ends: 75361 [2024-10-24 00:52:56,612 INFO L226 Difference]: Without dead ends: 50593 [2024-10-24 00:52:56,661 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-10-24 00:52:56,662 INFO L432 NwaCegarLoop]: 167 mSDtfsCounter, 953 mSDsluCounter, 557 mSDsCounter, 0 mSdLazyCounter, 1282 mSolverCounterSat, 358 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 968 SdHoareTripleChecker+Valid, 724 SdHoareTripleChecker+Invalid, 1640 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 358 IncrementalHoareTripleChecker+Valid, 1282 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-10-24 00:52:56,662 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [968 Valid, 724 Invalid, 1640 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [358 Valid, 1282 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-10-24 00:52:56,690 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50593 states. [2024-10-24 00:52:58,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50593 to 50472. [2024-10-24 00:52:58,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50472 states, 41925 states have (on average 1.6238282647584974) internal successors, (68079), 41932 states have internal predecessors, (68079), 8524 states have call successors, (8524), 18 states have call predecessors, (8524), 22 states have return successors, (9669), 8523 states have call predecessors, (9669), 8523 states have call successors, (9669) [2024-10-24 00:52:58,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50472 states to 50472 states and 86272 transitions. [2024-10-24 00:52:58,258 INFO L78 Accepts]: Start accepts. Automaton has 50472 states and 86272 transitions. Word has length 134 [2024-10-24 00:52:58,258 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 00:52:58,258 INFO L471 AbstractCegarLoop]: Abstraction has 50472 states and 86272 transitions. [2024-10-24 00:52:58,259 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.285714285714286) internal successors, (86), 3 states have internal predecessors, (86), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2024-10-24 00:52:58,259 INFO L276 IsEmpty]: Start isEmpty. Operand 50472 states and 86272 transitions. [2024-10-24 00:52:58,305 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-10-24 00:52:58,306 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 00:52:58,306 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 00:52:58,306 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-10-24 00:52:58,306 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 00:52:58,306 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 00:52:58,307 INFO L85 PathProgramCache]: Analyzing trace with hash -1858568823, now seen corresponding path program 1 times [2024-10-24 00:52:58,307 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 00:52:58,307 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1406279736] [2024-10-24 00:52:58,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 00:52:58,307 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 00:52:58,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:58,365 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 00:52:58,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:58,373 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 00:52:58,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:58,375 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 00:52:58,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:58,377 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-24 00:52:58,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:58,379 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-24 00:52:58,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:58,381 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-24 00:52:58,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:58,388 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-10-24 00:52:58,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:58,396 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-10-24 00:52:58,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:58,399 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-10-24 00:52:58,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:58,400 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-10-24 00:52:58,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:58,402 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-10-24 00:52:58,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:58,404 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-10-24 00:52:58,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:58,406 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-10-24 00:52:58,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:58,407 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2024-10-24 00:52:58,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:58,409 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2024-10-24 00:52:58,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:58,411 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2024-10-24 00:52:58,411 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 00:52:58,411 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1406279736] [2024-10-24 00:52:58,412 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1406279736] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 00:52:58,412 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 00:52:58,412 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 00:52:58,412 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [799211773] [2024-10-24 00:52:58,412 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 00:52:58,413 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 00:52:58,413 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 00:52:58,414 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 00:52:58,414 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 00:52:58,414 INFO L87 Difference]: Start difference. First operand 50472 states and 86272 transitions. Second operand has 7 states, 7 states have (on average 12.428571428571429) internal successors, (87), 3 states have internal predecessors, (87), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2024-10-24 00:53:00,973 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 00:53:00,974 INFO L93 Difference]: Finished difference Result 94108 states and 164559 transitions. [2024-10-24 00:53:00,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-24 00:53:00,975 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.428571428571429) internal successors, (87), 3 states have internal predecessors, (87), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 135 [2024-10-24 00:53:00,975 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 00:53:01,271 INFO L225 Difference]: With dead ends: 94108 [2024-10-24 00:53:01,271 INFO L226 Difference]: Without dead ends: 93973 [2024-10-24 00:53:01,313 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-10-24 00:53:01,313 INFO L432 NwaCegarLoop]: 166 mSDtfsCounter, 948 mSDsluCounter, 556 mSDsCounter, 0 mSdLazyCounter, 1288 mSolverCounterSat, 353 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 962 SdHoareTripleChecker+Valid, 722 SdHoareTripleChecker+Invalid, 1641 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 353 IncrementalHoareTripleChecker+Valid, 1288 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-10-24 00:53:01,314 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [962 Valid, 722 Invalid, 1641 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [353 Valid, 1288 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-10-24 00:53:01,372 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93973 states. [2024-10-24 00:53:04,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93973 to 93852. [2024-10-24 00:53:04,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93852 states, 78506 states have (on average 1.6173286118258476) internal successors, (126970), 78513 states have internal predecessors, (126970), 15323 states have call successors, (15323), 18 states have call predecessors, (15323), 22 states have return successors, (17514), 15322 states have call predecessors, (17514), 15322 states have call successors, (17514) [2024-10-24 00:53:04,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93852 states to 93852 states and 159807 transitions. [2024-10-24 00:53:04,378 INFO L78 Accepts]: Start accepts. Automaton has 93852 states and 159807 transitions. Word has length 135 [2024-10-24 00:53:04,379 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 00:53:04,379 INFO L471 AbstractCegarLoop]: Abstraction has 93852 states and 159807 transitions. [2024-10-24 00:53:04,379 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.428571428571429) internal successors, (87), 3 states have internal predecessors, (87), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2024-10-24 00:53:04,379 INFO L276 IsEmpty]: Start isEmpty. Operand 93852 states and 159807 transitions. [2024-10-24 00:53:04,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2024-10-24 00:53:04,436 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 00:53:04,437 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 00:53:04,437 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-10-24 00:53:04,437 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 00:53:04,437 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 00:53:04,437 INFO L85 PathProgramCache]: Analyzing trace with hash 1103025979, now seen corresponding path program 1 times [2024-10-24 00:53:04,437 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 00:53:04,438 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1792887024] [2024-10-24 00:53:04,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 00:53:04,438 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 00:53:04,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:04,687 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 00:53:04,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:04,696 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 00:53:04,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:04,698 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 00:53:04,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:04,701 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-24 00:53:04,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:04,704 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-24 00:53:04,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:04,707 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-24 00:53:04,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:04,716 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-10-24 00:53:04,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:04,727 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-10-24 00:53:04,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:04,749 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-24 00:53:04,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:04,761 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2024-10-24 00:53:04,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:04,763 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-10-24 00:53:04,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:04,764 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-10-24 00:53:04,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:04,765 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-10-24 00:53:04,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:04,766 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-10-24 00:53:04,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:04,767 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-10-24 00:53:04,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:04,768 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2024-10-24 00:53:04,769 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 00:53:04,769 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1792887024] [2024-10-24 00:53:04,769 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1792887024] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 00:53:04,769 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1228429990] [2024-10-24 00:53:04,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 00:53:04,769 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 00:53:04,769 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 00:53:04,771 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) [2024-10-24 00:53:04,771 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-10-24 00:53:04,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:05,000 INFO L255 TraceCheckSpWp]: Trace formula consists of 1081 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-10-24 00:53:05,004 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 00:53:05,614 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-10-24 00:53:05,615 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 00:53:05,615 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1228429990] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 00:53:05,615 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-24 00:53:05,615 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [16] total 26 [2024-10-24 00:53:05,615 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2034618306] [2024-10-24 00:53:05,615 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 00:53:05,616 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-10-24 00:53:05,616 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 00:53:05,616 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-10-24 00:53:05,616 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=575, Unknown=0, NotChecked=0, Total=650 [2024-10-24 00:53:05,617 INFO L87 Difference]: Start difference. First operand 93852 states and 159807 transitions. Second operand has 12 states, 11 states have (on average 8.909090909090908) internal successors, (98), 9 states have internal predecessors, (98), 5 states have call successors, (17), 5 states have call predecessors, (17), 5 states have return successors, (15), 6 states have call predecessors, (15), 5 states have call successors, (15) [2024-10-24 00:53:09,552 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 00:53:09,552 INFO L93 Difference]: Finished difference Result 187043 states and 323983 transitions. [2024-10-24 00:53:09,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-24 00:53:09,553 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 8.909090909090908) internal successors, (98), 9 states have internal predecessors, (98), 5 states have call successors, (17), 5 states have call predecessors, (17), 5 states have return successors, (15), 6 states have call predecessors, (15), 5 states have call successors, (15) Word has length 136 [2024-10-24 00:53:09,553 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 00:53:10,464 INFO L225 Difference]: With dead ends: 187043 [2024-10-24 00:53:10,464 INFO L226 Difference]: Without dead ends: 186913 [2024-10-24 00:53:10,528 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 187 GetRequests, 152 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 94 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=161, Invalid=1171, Unknown=0, NotChecked=0, Total=1332 [2024-10-24 00:53:10,529 INFO L432 NwaCegarLoop]: 506 mSDtfsCounter, 701 mSDsluCounter, 3621 mSDsCounter, 0 mSdLazyCounter, 1112 mSolverCounterSat, 103 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 704 SdHoareTripleChecker+Valid, 4127 SdHoareTripleChecker+Invalid, 1215 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 103 IncrementalHoareTripleChecker+Valid, 1112 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-10-24 00:53:10,529 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [704 Valid, 4127 Invalid, 1215 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [103 Valid, 1112 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-10-24 00:53:10,627 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 186913 states. [2024-10-24 00:53:16,225 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 186913 to 186885. [2024-10-24 00:53:16,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 186885 states, 156393 states have (on average 1.618230994993382) internal successors, (253080), 156295 states have internal predecessors, (253080), 30438 states have call successors, (30438), 47 states have call predecessors, (30438), 53 states have return successors, (38092), 30548 states have call predecessors, (38092), 30435 states have call successors, (38092) [2024-10-24 00:53:17,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 186885 states to 186885 states and 321610 transitions. [2024-10-24 00:53:17,277 INFO L78 Accepts]: Start accepts. Automaton has 186885 states and 321610 transitions. Word has length 136 [2024-10-24 00:53:17,277 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 00:53:17,277 INFO L471 AbstractCegarLoop]: Abstraction has 186885 states and 321610 transitions. [2024-10-24 00:53:17,277 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 8.909090909090908) internal successors, (98), 9 states have internal predecessors, (98), 5 states have call successors, (17), 5 states have call predecessors, (17), 5 states have return successors, (15), 6 states have call predecessors, (15), 5 states have call successors, (15) [2024-10-24 00:53:17,277 INFO L276 IsEmpty]: Start isEmpty. Operand 186885 states and 321610 transitions. [2024-10-24 00:53:17,386 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2024-10-24 00:53:17,386 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 00:53:17,386 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 00:53:17,400 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-10-24 00:53:17,590 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 00:53:17,592 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 00:53:17,592 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 00:53:17,592 INFO L85 PathProgramCache]: Analyzing trace with hash -639944318, now seen corresponding path program 1 times [2024-10-24 00:53:17,592 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 00:53:17,592 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1012068294] [2024-10-24 00:53:17,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 00:53:17,592 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 00:53:17,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:17,719 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 00:53:17,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:17,731 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 00:53:17,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:17,734 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 00:53:17,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:17,736 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-24 00:53:17,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:17,739 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-24 00:53:17,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:17,741 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-24 00:53:17,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:17,752 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-10-24 00:53:17,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:17,768 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-10-24 00:53:17,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:17,770 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-24 00:53:17,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:17,774 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-24 00:53:17,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:17,775 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-24 00:53:17,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:17,776 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-24 00:53:17,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:17,777 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-10-24 00:53:17,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:17,778 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-10-24 00:53:17,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:17,779 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2024-10-24 00:53:17,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:17,781 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2024-10-24 00:53:17,781 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 00:53:17,781 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1012068294] [2024-10-24 00:53:17,781 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1012068294] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 00:53:17,781 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 00:53:17,781 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-10-24 00:53:17,781 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [892583639] [2024-10-24 00:53:17,781 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 00:53:17,782 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-10-24 00:53:17,782 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 00:53:17,782 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-10-24 00:53:17,782 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2024-10-24 00:53:17,782 INFO L87 Difference]: Start difference. First operand 186885 states and 321610 transitions. Second operand has 12 states, 12 states have (on average 7.416666666666667) internal successors, (89), 6 states have internal predecessors, (89), 4 states have call successors, (17), 7 states have call predecessors, (17), 1 states have return successors, (15), 4 states have call predecessors, (15), 4 states have call successors, (15) [2024-10-24 00:53:23,812 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 00:53:23,812 INFO L93 Difference]: Finished difference Result 188090 states and 329967 transitions. [2024-10-24 00:53:23,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-10-24 00:53:23,813 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 7.416666666666667) internal successors, (89), 6 states have internal predecessors, (89), 4 states have call successors, (17), 7 states have call predecessors, (17), 1 states have return successors, (15), 4 states have call predecessors, (15), 4 states have call successors, (15) Word has length 137 [2024-10-24 00:53:23,813 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 00:53:24,444 INFO L225 Difference]: With dead ends: 188090 [2024-10-24 00:53:24,445 INFO L226 Difference]: Without dead ends: 187349 [2024-10-24 00:53:24,518 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 140 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=211, Invalid=601, Unknown=0, NotChecked=0, Total=812 [2024-10-24 00:53:24,519 INFO L432 NwaCegarLoop]: 149 mSDtfsCounter, 1634 mSDsluCounter, 1029 mSDsCounter, 0 mSdLazyCounter, 3145 mSolverCounterSat, 589 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1649 SdHoareTripleChecker+Valid, 1178 SdHoareTripleChecker+Invalid, 3734 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 589 IncrementalHoareTripleChecker+Valid, 3145 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-10-24 00:53:24,519 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1649 Valid, 1178 Invalid, 3734 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [589 Valid, 3145 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-10-24 00:53:24,620 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 187349 states.