./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_spec0_product37.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_spec0_product37.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 9dc54d5213c4407313cf4404e06f4e3ced3af047edaa52f6d33441570abdeda7 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4a390ef-m [2024-10-24 00:43:06,941 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-24 00:43:07,010 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-24 00:43:07,015 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-24 00:43:07,015 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-24 00:43:07,071 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-24 00:43:07,072 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-24 00:43:07,073 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-24 00:43:07,074 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-24 00:43:07,075 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-24 00:43:07,075 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-24 00:43:07,075 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-24 00:43:07,076 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-24 00:43:07,078 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-24 00:43:07,078 INFO L153 SettingsManager]: * Use SBE=true [2024-10-24 00:43:07,079 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-24 00:43:07,079 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-24 00:43:07,079 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-24 00:43:07,079 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-24 00:43:07,080 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-24 00:43:07,080 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-24 00:43:07,084 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-24 00:43:07,084 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-24 00:43:07,085 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-24 00:43:07,085 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-24 00:43:07,085 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-24 00:43:07,085 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-24 00:43:07,086 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-24 00:43:07,086 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-24 00:43:07,086 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-24 00:43:07,086 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-24 00:43:07,087 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-24 00:43:07,095 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 00:43:07,096 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-24 00:43:07,096 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-24 00:43:07,096 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-24 00:43:07,097 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-24 00:43:07,097 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-24 00:43:07,098 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-24 00:43:07,098 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-24 00:43:07,099 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-24 00:43:07,099 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-24 00:43:07,099 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9dc54d5213c4407313cf4404e06f4e3ced3af047edaa52f6d33441570abdeda7 [2024-10-24 00:43:07,363 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-24 00:43:07,393 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-24 00:43:07,398 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-24 00:43:07,399 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-24 00:43:07,400 INFO L274 PluginConnector]: CDTParser initialized [2024-10-24 00:43:07,401 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/email_spec0_product37.cil.c [2024-10-24 00:43:08,846 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-24 00:43:09,142 INFO L384 CDTParser]: Found 1 translation units. [2024-10-24 00:43:09,143 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/email_spec0_product37.cil.c [2024-10-24 00:43:09,167 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/24b1010e9/ce2314f8182e45fb8a7cd09c86760b11/FLAG1d8bd500c [2024-10-24 00:43:09,415 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/24b1010e9/ce2314f8182e45fb8a7cd09c86760b11 [2024-10-24 00:43:09,417 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-24 00:43:09,418 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-24 00:43:09,421 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-24 00:43:09,421 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-24 00:43:09,425 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-24 00:43:09,425 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 12:43:09" (1/1) ... [2024-10-24 00:43:09,426 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@28cad62d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:43:09, skipping insertion in model container [2024-10-24 00:43:09,426 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 12:43:09" (1/1) ... [2024-10-24 00:43:09,492 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-24 00:43:09,691 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_spec0_product37.cil.c[1542,1555] [2024-10-24 00:43:10,060 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 00:43:10,075 INFO L200 MainTranslator]: Completed pre-run [2024-10-24 00:43:10,086 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [48] [2024-10-24 00:43:10,087 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [57] [2024-10-24 00:43:10,088 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"ClientLib.i","") [384] [2024-10-24 00:43:10,088 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Client.i","") [1455] [2024-10-24 00:43:10,088 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [1686] [2024-10-24 00:43:10,088 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Util.i","") [1721] [2024-10-24 00:43:10,089 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"EmailLib.i","") [1738] [2024-10-24 00:43:10,089 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [2146] [2024-10-24 00:43:10,089 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Email.i","") [2512] [2024-10-24 00:43:10,090 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"DecryptForward_spec.i","") [2576] [2024-10-24 00:43:10,090 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [2595] [2024-10-24 00:43:10,095 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_spec0_product37.cil.c[1542,1555] [2024-10-24 00:43:10,171 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 00:43:10,207 INFO L204 MainTranslator]: Completed translation [2024-10-24 00:43:10,208 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:43:10 WrapperNode [2024-10-24 00:43:10,208 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-24 00:43:10,209 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-24 00:43:10,209 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-24 00:43:10,209 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-24 00:43:10,216 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:43:10" (1/1) ... [2024-10-24 00:43:10,245 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:43:10" (1/1) ... [2024-10-24 00:43:10,289 INFO L138 Inliner]: procedures = 124, calls = 170, calls flagged for inlining = 51, calls inlined = 46, statements flattened = 834 [2024-10-24 00:43:10,290 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-24 00:43:10,291 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-24 00:43:10,291 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-24 00:43:10,291 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-24 00:43:10,302 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:43:10" (1/1) ... [2024-10-24 00:43:10,303 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:43:10" (1/1) ... [2024-10-24 00:43:10,308 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:43:10" (1/1) ... [2024-10-24 00:43:10,329 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 00:43:10,331 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:43:10" (1/1) ... [2024-10-24 00:43:10,331 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:43:10" (1/1) ... [2024-10-24 00:43:10,351 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:43:10" (1/1) ... [2024-10-24 00:43:10,366 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:43:10" (1/1) ... [2024-10-24 00:43:10,374 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:43:10" (1/1) ... [2024-10-24 00:43:10,381 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:43:10" (1/1) ... [2024-10-24 00:43:10,392 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-24 00:43:10,396 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-24 00:43:10,396 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-24 00:43:10,396 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-24 00:43:10,397 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:43:10" (1/1) ... [2024-10-24 00:43:10,411 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 00:43:10,433 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 00:43:10,456 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 00:43:10,462 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 00:43:10,513 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2024-10-24 00:43:10,513 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2024-10-24 00:43:10,513 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2024-10-24 00:43:10,513 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2024-10-24 00:43:10,514 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2024-10-24 00:43:10,514 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2024-10-24 00:43:10,514 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2024-10-24 00:43:10,515 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2024-10-24 00:43:10,516 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2024-10-24 00:43:10,516 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2024-10-24 00:43:10,516 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2024-10-24 00:43:10,516 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2024-10-24 00:43:10,516 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2024-10-24 00:43:10,517 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2024-10-24 00:43:10,517 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2024-10-24 00:43:10,517 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2024-10-24 00:43:10,518 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-24 00:43:10,518 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2024-10-24 00:43:10,518 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2024-10-24 00:43:10,518 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2024-10-24 00:43:10,518 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2024-10-24 00:43:10,518 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2024-10-24 00:43:10,520 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2024-10-24 00:43:10,520 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2024-10-24 00:43:10,520 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2024-10-24 00:43:10,520 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2024-10-24 00:43:10,520 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2024-10-24 00:43:10,521 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2024-10-24 00:43:10,521 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2024-10-24 00:43:10,521 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-24 00:43:10,521 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-10-24 00:43:10,521 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-10-24 00:43:10,521 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-10-24 00:43:10,521 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2024-10-24 00:43:10,521 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2024-10-24 00:43:10,521 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-24 00:43:10,521 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-24 00:43:10,730 INFO L238 CfgBuilder]: Building ICFG [2024-10-24 00:43:10,732 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-24 00:43:11,494 INFO L? ?]: Removed 326 outVars from TransFormulas that were not future-live. [2024-10-24 00:43:11,495 INFO L287 CfgBuilder]: Performing block encoding [2024-10-24 00:43:11,556 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-24 00:43:11,557 INFO L314 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-24 00:43:11,558 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 12:43:11 BoogieIcfgContainer [2024-10-24 00:43:11,558 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-24 00:43:11,561 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-24 00:43:11,562 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-24 00:43:11,565 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-24 00:43:11,565 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 12:43:09" (1/3) ... [2024-10-24 00:43:11,566 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3210255c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 12:43:11, skipping insertion in model container [2024-10-24 00:43:11,566 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:43:10" (2/3) ... [2024-10-24 00:43:11,568 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3210255c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 12:43:11, skipping insertion in model container [2024-10-24 00:43:11,568 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 12:43:11" (3/3) ... [2024-10-24 00:43:11,569 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec0_product37.cil.c [2024-10-24 00:43:11,584 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-24 00:43:11,584 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-24 00:43:11,663 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-24 00:43:11,671 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;@569fa42e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-24 00:43:11,671 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-24 00:43:11,677 INFO L276 IsEmpty]: Start isEmpty. Operand has 234 states, 177 states have (on average 1.5932203389830508) internal successors, (282), 179 states have internal predecessors, (282), 40 states have call successors, (40), 15 states have call predecessors, (40), 15 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40) [2024-10-24 00:43:11,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2024-10-24 00:43:11,701 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 00:43:11,702 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] [2024-10-24 00:43:11,703 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 00:43:11,708 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 00:43:11,708 INFO L85 PathProgramCache]: Analyzing trace with hash 740656969, now seen corresponding path program 1 times [2024-10-24 00:43:11,717 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 00:43:11,717 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2079931201] [2024-10-24 00:43:11,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 00:43:11,718 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 00:43:11,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:43:12,337 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 00:43:12,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:43:12,358 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 00:43:12,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:43:12,366 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 00:43:12,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:43:12,417 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 00:43:12,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:43:12,428 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-24 00:43:12,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:43:12,435 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 00:43:12,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:43:12,452 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-10-24 00:43:12,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:43:12,467 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-10-24 00:43:12,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:43:12,472 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-24 00:43:12,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:43:12,476 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-10-24 00:43:12,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:43:12,480 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-10-24 00:43:12,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:43:12,484 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-10-24 00:43:12,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:43:12,489 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 00:43:12,489 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 00:43:12,489 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2079931201] [2024-10-24 00:43:12,491 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2079931201] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 00:43:12,491 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1551400467] [2024-10-24 00:43:12,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 00:43:12,491 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 00:43:12,492 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 00:43:12,494 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 00:43:12,495 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 00:43:12,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:43:12,800 INFO L255 TraceCheckSpWp]: Trace formula consists of 868 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-10-24 00:43:12,807 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 00:43:12,830 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 00:43:12,831 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 00:43:12,832 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1551400467] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 00:43:12,832 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-24 00:43:12,832 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [9] total 9 [2024-10-24 00:43:12,834 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1175843261] [2024-10-24 00:43:12,835 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 00:43:12,840 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-24 00:43:12,840 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 00:43:12,868 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-24 00:43:12,869 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-10-24 00:43:12,873 INFO L87 Difference]: Start difference. First operand has 234 states, 177 states have (on average 1.5932203389830508) internal successors, (282), 179 states have internal predecessors, (282), 40 states have call successors, (40), 15 states have call predecessors, (40), 15 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40) Second operand has 2 states, 2 states have (on average 22.0) internal successors, (44), 2 states have internal predecessors, (44), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-10-24 00:43:12,959 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 00:43:12,960 INFO L93 Difference]: Finished difference Result 319 states and 480 transitions. [2024-10-24 00:43:12,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-24 00:43:12,965 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 22.0) internal successors, (44), 2 states have internal predecessors, (44), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 88 [2024-10-24 00:43:12,966 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 00:43:12,980 INFO L225 Difference]: With dead ends: 319 [2024-10-24 00:43:12,980 INFO L226 Difference]: Without dead ends: 231 [2024-10-24 00:43:12,984 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 108 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-10-24 00:43:12,987 INFO L432 NwaCegarLoop]: 343 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, 343 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 00:43:12,988 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 343 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 00:43:13,004 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 231 states. [2024-10-24 00:43:13,038 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 231 to 231. [2024-10-24 00:43:13,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 231 states, 175 states have (on average 1.5714285714285714) internal successors, (275), 176 states have internal predecessors, (275), 40 states have call successors, (40), 15 states have call predecessors, (40), 15 states have return successors, (39), 39 states have call predecessors, (39), 39 states have call successors, (39) [2024-10-24 00:43:13,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 231 states to 231 states and 354 transitions. [2024-10-24 00:43:13,047 INFO L78 Accepts]: Start accepts. Automaton has 231 states and 354 transitions. Word has length 88 [2024-10-24 00:43:13,048 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 00:43:13,049 INFO L471 AbstractCegarLoop]: Abstraction has 231 states and 354 transitions. [2024-10-24 00:43:13,049 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 22.0) internal successors, (44), 2 states have internal predecessors, (44), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-10-24 00:43:13,049 INFO L276 IsEmpty]: Start isEmpty. Operand 231 states and 354 transitions. [2024-10-24 00:43:13,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2024-10-24 00:43:13,056 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 00:43:13,056 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] [2024-10-24 00:43:13,077 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-10-24 00:43:13,260 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 00:43:13,260 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 00:43:13,261 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 00:43:13,261 INFO L85 PathProgramCache]: Analyzing trace with hash -717797368, now seen corresponding path program 1 times [2024-10-24 00:43:13,261 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 00:43:13,262 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1176625361] [2024-10-24 00:43:13,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 00:43:13,262 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 00:43:13,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:43:13,426 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 00:43:13,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:43:13,438 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 00:43:13,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:43:13,442 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 00:43:13,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:43:13,473 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 00:43:13,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:43:13,477 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-24 00:43:13,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:43:13,483 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 00:43:13,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:43:13,499 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-10-24 00:43:13,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:43:13,513 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-10-24 00:43:13,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:43:13,517 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-10-24 00:43:13,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:43:13,520 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-10-24 00:43:13,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:43:13,524 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-10-24 00:43:13,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:43:13,527 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-10-24 00:43:13,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:43:13,531 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 00:43:13,531 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 00:43:13,532 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1176625361] [2024-10-24 00:43:13,532 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1176625361] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 00:43:13,532 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [487993816] [2024-10-24 00:43:13,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 00:43:13,532 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 00:43:13,532 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 00:43:13,534 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 00:43:13,536 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 00:43:13,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:43:13,827 INFO L255 TraceCheckSpWp]: Trace formula consists of 869 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-24 00:43:13,833 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 00:43:13,865 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 00:43:13,866 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 00:43:13,866 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [487993816] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 00:43:13,866 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-24 00:43:13,866 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2024-10-24 00:43:13,866 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [235425117] [2024-10-24 00:43:13,867 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 00:43:13,871 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 00:43:13,872 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 00:43:13,874 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 00:43:13,874 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-10-24 00:43:13,874 INFO L87 Difference]: Start difference. First operand 231 states and 354 transitions. Second operand has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-10-24 00:43:13,940 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 00:43:13,940 INFO L93 Difference]: Finished difference Result 315 states and 467 transitions. [2024-10-24 00:43:13,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 00:43:13,941 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 89 [2024-10-24 00:43:13,941 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 00:43:13,946 INFO L225 Difference]: With dead ends: 315 [2024-10-24 00:43:13,946 INFO L226 Difference]: Without dead ends: 233 [2024-10-24 00:43:13,948 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 108 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-10-24 00:43:13,950 INFO L432 NwaCegarLoop]: 340 mSDtfsCounter, 0 mSDsluCounter, 339 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 679 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 00:43:13,950 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 679 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 00:43:13,952 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 233 states. [2024-10-24 00:43:13,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 233 to 233. [2024-10-24 00:43:13,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 233 states, 177 states have (on average 1.5649717514124293) internal successors, (277), 178 states have internal predecessors, (277), 40 states have call successors, (40), 15 states have call predecessors, (40), 15 states have return successors, (39), 39 states have call predecessors, (39), 39 states have call successors, (39) [2024-10-24 00:43:13,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 233 states to 233 states and 356 transitions. [2024-10-24 00:43:13,984 INFO L78 Accepts]: Start accepts. Automaton has 233 states and 356 transitions. Word has length 89 [2024-10-24 00:43:13,984 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 00:43:13,984 INFO L471 AbstractCegarLoop]: Abstraction has 233 states and 356 transitions. [2024-10-24 00:43:13,985 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-10-24 00:43:13,985 INFO L276 IsEmpty]: Start isEmpty. Operand 233 states and 356 transitions. [2024-10-24 00:43:13,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2024-10-24 00:43:13,992 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 00:43:13,992 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] [2024-10-24 00:43:14,014 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-10-24 00:43:14,192 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 00:43:14,193 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 00:43:14,194 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 00:43:14,195 INFO L85 PathProgramCache]: Analyzing trace with hash 1491998209, now seen corresponding path program 1 times [2024-10-24 00:43:14,195 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 00:43:14,195 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [910333971] [2024-10-24 00:43:14,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 00:43:14,196 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 00:43:14,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:43:14,368 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 00:43:14,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:43:14,382 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 00:43:14,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:43:14,385 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 00:43:14,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:43:14,405 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 00:43:14,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:43:14,408 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-24 00:43:14,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:43:14,411 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 00:43:14,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:43:14,423 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-24 00:43:14,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:43:14,435 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-10-24 00:43:14,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:43:14,437 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-10-24 00:43:14,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:43:14,439 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-10-24 00:43:14,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:43:14,441 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-24 00:43:14,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:43:14,444 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-10-24 00:43:14,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:43:14,445 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 00:43:14,445 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 00:43:14,445 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [910333971] [2024-10-24 00:43:14,446 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [910333971] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 00:43:14,446 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [422516279] [2024-10-24 00:43:14,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 00:43:14,446 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 00:43:14,446 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 00:43:14,448 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 00:43:14,449 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 00:43:14,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:43:14,703 INFO L255 TraceCheckSpWp]: Trace formula consists of 893 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-24 00:43:14,707 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 00:43:14,726 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 00:43:14,726 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 00:43:14,727 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [422516279] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 00:43:14,727 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-24 00:43:14,727 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2024-10-24 00:43:14,727 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [247687726] [2024-10-24 00:43:14,727 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 00:43:14,728 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 00:43:14,728 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 00:43:14,729 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 00:43:14,729 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-10-24 00:43:14,729 INFO L87 Difference]: Start difference. First operand 233 states and 356 transitions. Second operand has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-10-24 00:43:14,785 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 00:43:14,785 INFO L93 Difference]: Finished difference Result 500 states and 778 transitions. [2024-10-24 00:43:14,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 00:43:14,786 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 96 [2024-10-24 00:43:14,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 00:43:14,788 INFO L225 Difference]: With dead ends: 500 [2024-10-24 00:43:14,789 INFO L226 Difference]: Without dead ends: 289 [2024-10-24 00:43:14,790 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 123 GetRequests, 115 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-10-24 00:43:14,791 INFO L432 NwaCegarLoop]: 345 mSDtfsCounter, 109 mSDsluCounter, 294 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 124 SdHoareTripleChecker+Valid, 639 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 00:43:14,791 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [124 Valid, 639 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 00:43:14,792 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 289 states. [2024-10-24 00:43:14,814 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 289 to 284. [2024-10-24 00:43:14,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 284 states, 217 states have (on average 1.5852534562211982) internal successors, (344), 218 states have internal predecessors, (344), 51 states have call successors, (51), 15 states have call predecessors, (51), 15 states have return successors, (50), 50 states have call predecessors, (50), 50 states have call successors, (50) [2024-10-24 00:43:14,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 284 states to 284 states and 445 transitions. [2024-10-24 00:43:14,822 INFO L78 Accepts]: Start accepts. Automaton has 284 states and 445 transitions. Word has length 96 [2024-10-24 00:43:14,822 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 00:43:14,822 INFO L471 AbstractCegarLoop]: Abstraction has 284 states and 445 transitions. [2024-10-24 00:43:14,822 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-10-24 00:43:14,822 INFO L276 IsEmpty]: Start isEmpty. Operand 284 states and 445 transitions. [2024-10-24 00:43:14,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2024-10-24 00:43:14,826 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 00:43:14,826 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] [2024-10-24 00:43:14,846 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 00:43:15,026 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 00:43:15,027 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 00:43:15,028 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 00:43:15,028 INFO L85 PathProgramCache]: Analyzing trace with hash 1762228474, now seen corresponding path program 1 times [2024-10-24 00:43:15,028 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 00:43:15,028 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1641516833] [2024-10-24 00:43:15,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 00:43:15,028 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 00:43:15,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:43:15,169 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 00:43:15,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:43:15,183 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 00:43:15,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:43:15,186 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 00:43:15,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:43:15,206 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 00:43:15,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:43:15,209 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-24 00:43:15,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:43:15,212 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 00:43:15,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:43:15,224 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-24 00:43:15,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:43:15,236 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-24 00:43:15,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:43:15,238 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-10-24 00:43:15,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:43:15,240 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-10-24 00:43:15,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:43:15,243 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-10-24 00:43:15,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:43:15,245 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-10-24 00:43:15,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:43:15,246 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 00:43:15,246 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 00:43:15,247 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1641516833] [2024-10-24 00:43:15,247 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1641516833] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 00:43:15,247 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1611736450] [2024-10-24 00:43:15,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 00:43:15,247 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 00:43:15,247 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 00:43:15,249 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 00:43:15,251 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 00:43:15,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:43:15,503 INFO L255 TraceCheckSpWp]: Trace formula consists of 898 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-10-24 00:43:15,507 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 00:43:15,572 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 00:43:15,573 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 00:43:15,573 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1611736450] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 00:43:15,573 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-24 00:43:15,573 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 12 [2024-10-24 00:43:15,573 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1273536336] [2024-10-24 00:43:15,573 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 00:43:15,574 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 00:43:15,574 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 00:43:15,574 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 00:43:15,575 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2024-10-24 00:43:15,575 INFO L87 Difference]: Start difference. First operand 284 states and 445 transitions. Second operand has 5 states, 4 states have (on average 15.25) internal successors, (61), 5 states have internal predecessors, (61), 3 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) [2024-10-24 00:43:15,669 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 00:43:15,670 INFO L93 Difference]: Finished difference Result 563 states and 884 transitions. [2024-10-24 00:43:15,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-24 00:43:15,670 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 15.25) internal successors, (61), 5 states have internal predecessors, (61), 3 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) Word has length 97 [2024-10-24 00:43:15,671 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 00:43:15,674 INFO L225 Difference]: With dead ends: 563 [2024-10-24 00:43:15,674 INFO L226 Difference]: Without dead ends: 286 [2024-10-24 00:43:15,675 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 124 GetRequests, 114 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2024-10-24 00:43:15,676 INFO L432 NwaCegarLoop]: 332 mSDtfsCounter, 2 mSDsluCounter, 985 mSDsCounter, 0 mSdLazyCounter, 93 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 1317 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 00:43:15,676 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 1317 Invalid, 93 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 93 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 00:43:15,677 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 286 states. [2024-10-24 00:43:15,690 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 286 to 286. [2024-10-24 00:43:15,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 286 states, 218 states have (on average 1.5825688073394495) internal successors, (345), 220 states have internal predecessors, (345), 51 states have call successors, (51), 15 states have call predecessors, (51), 16 states have return successors, (52), 50 states have call predecessors, (52), 50 states have call successors, (52) [2024-10-24 00:43:15,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 286 states to 286 states and 448 transitions. [2024-10-24 00:43:15,693 INFO L78 Accepts]: Start accepts. Automaton has 286 states and 448 transitions. Word has length 97 [2024-10-24 00:43:15,693 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 00:43:15,693 INFO L471 AbstractCegarLoop]: Abstraction has 286 states and 448 transitions. [2024-10-24 00:43:15,694 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 15.25) internal successors, (61), 5 states have internal predecessors, (61), 3 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) [2024-10-24 00:43:15,694 INFO L276 IsEmpty]: Start isEmpty. Operand 286 states and 448 transitions. [2024-10-24 00:43:15,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2024-10-24 00:43:15,695 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 00:43:15,696 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] [2024-10-24 00:43:15,714 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 00:43:15,896 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 00:43:15,897 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 00:43:15,897 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 00:43:15,897 INFO L85 PathProgramCache]: Analyzing trace with hash 1397427171, now seen corresponding path program 1 times [2024-10-24 00:43:15,897 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 00:43:15,897 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1681406689] [2024-10-24 00:43:15,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 00:43:15,898 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 00:43:15,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:43:16,043 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 00:43:16,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:43:16,055 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 00:43:16,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:43:16,058 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 00:43:16,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:43:16,084 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-24 00:43:16,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:43:16,118 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-10-24 00:43:16,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:43:16,123 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-10-24 00:43:16,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:43:16,138 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-10-24 00:43:16,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:43:16,155 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-24 00:43:16,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:43:16,158 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-10-24 00:43:16,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:43:16,161 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-24 00:43:16,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:43:16,164 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-24 00:43:16,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:43:16,166 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-24 00:43:16,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:43:16,167 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 00:43:16,168 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 00:43:16,168 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1681406689] [2024-10-24 00:43:16,168 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1681406689] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 00:43:16,168 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [77640263] [2024-10-24 00:43:16,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 00:43:16,168 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 00:43:16,168 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 00:43:16,170 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 00:43:16,172 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 00:43:16,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:43:16,422 INFO L255 TraceCheckSpWp]: Trace formula consists of 899 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-10-24 00:43:16,425 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 00:43:16,485 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 00:43:16,486 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 00:43:16,486 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [77640263] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 00:43:16,486 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-24 00:43:16,486 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [12] total 15 [2024-10-24 00:43:16,486 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [950699917] [2024-10-24 00:43:16,486 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 00:43:16,486 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 00:43:16,487 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 00:43:16,487 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 00:43:16,487 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=180, Unknown=0, NotChecked=0, Total=210 [2024-10-24 00:43:16,487 INFO L87 Difference]: Start difference. First operand 286 states and 448 transitions. Second operand has 5 states, 5 states have (on average 12.6) internal successors, (63), 5 states have internal predecessors, (63), 3 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2024-10-24 00:43:16,584 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 00:43:16,584 INFO L93 Difference]: Finished difference Result 565 states and 889 transitions. [2024-10-24 00:43:16,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-24 00:43:16,585 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 5 states have internal predecessors, (63), 3 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 98 [2024-10-24 00:43:16,585 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 00:43:16,587 INFO L225 Difference]: With dead ends: 565 [2024-10-24 00:43:16,587 INFO L226 Difference]: Without dead ends: 288 [2024-10-24 00:43:16,588 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 114 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=180, Unknown=0, NotChecked=0, Total=210 [2024-10-24 00:43:16,589 INFO L432 NwaCegarLoop]: 330 mSDtfsCounter, 2 mSDsluCounter, 973 mSDsCounter, 0 mSdLazyCounter, 105 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 1303 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 00:43:16,589 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 1303 Invalid, 105 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 105 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 00:43:16,590 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 288 states. [2024-10-24 00:43:16,609 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 288 to 288. [2024-10-24 00:43:16,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 288 states, 219 states have (on average 1.5799086757990868) internal successors, (346), 222 states have internal predecessors, (346), 51 states have call successors, (51), 15 states have call predecessors, (51), 17 states have return successors, (57), 50 states have call predecessors, (57), 50 states have call successors, (57) [2024-10-24 00:43:16,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 288 states to 288 states and 454 transitions. [2024-10-24 00:43:16,614 INFO L78 Accepts]: Start accepts. Automaton has 288 states and 454 transitions. Word has length 98 [2024-10-24 00:43:16,614 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 00:43:16,614 INFO L471 AbstractCegarLoop]: Abstraction has 288 states and 454 transitions. [2024-10-24 00:43:16,614 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 5 states have internal predecessors, (63), 3 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2024-10-24 00:43:16,614 INFO L276 IsEmpty]: Start isEmpty. Operand 288 states and 454 transitions. [2024-10-24 00:43:16,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2024-10-24 00:43:16,616 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 00:43:16,616 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] [2024-10-24 00:43:16,635 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 00:43:16,820 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 00:43:16,821 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 00:43:16,821 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 00:43:16,821 INFO L85 PathProgramCache]: Analyzing trace with hash 2012801472, now seen corresponding path program 1 times [2024-10-24 00:43:16,821 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 00:43:16,821 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1408412903] [2024-10-24 00:43:16,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 00:43:16,822 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 00:43:16,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:43:16,938 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 00:43:16,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:43:16,948 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 00:43:16,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:43:16,952 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 00:43:16,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:43:16,954 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-24 00:43:16,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:43:16,956 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-24 00:43:16,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:43:16,975 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-10-24 00:43:16,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:43:16,987 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-10-24 00:43:16,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:43:16,999 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-10-24 00:43:17,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:43:17,002 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 00:43:17,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:43:17,004 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-24 00:43:17,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:43:17,006 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-10-24 00:43:17,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:43:17,008 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-10-24 00:43:17,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:43:17,009 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 00:43:17,009 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 00:43:17,009 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1408412903] [2024-10-24 00:43:17,009 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1408412903] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 00:43:17,010 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 00:43:17,010 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-10-24 00:43:17,010 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [391331050] [2024-10-24 00:43:17,010 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 00:43:17,012 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-24 00:43:17,012 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 00:43:17,013 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-24 00:43:17,013 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-10-24 00:43:17,013 INFO L87 Difference]: Start difference. First operand 288 states and 454 transitions. Second operand has 9 states, 8 states have (on average 7.375) internal successors, (59), 5 states have internal predecessors, (59), 3 states have call successors, (14), 6 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) [2024-10-24 00:43:18,567 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 00:43:18,567 INFO L93 Difference]: Finished difference Result 678 states and 1078 transitions. [2024-10-24 00:43:18,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-10-24 00:43:18,567 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 7.375) internal successors, (59), 5 states have internal predecessors, (59), 3 states have call successors, (14), 6 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) Word has length 99 [2024-10-24 00:43:18,568 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 00:43:18,571 INFO L225 Difference]: With dead ends: 678 [2024-10-24 00:43:18,571 INFO L226 Difference]: Without dead ends: 409 [2024-10-24 00:43:18,572 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=72, Invalid=200, Unknown=0, NotChecked=0, Total=272 [2024-10-24 00:43:18,573 INFO L432 NwaCegarLoop]: 166 mSDtfsCounter, 646 mSDsluCounter, 849 mSDsCounter, 0 mSdLazyCounter, 1800 mSolverCounterSat, 241 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 647 SdHoareTripleChecker+Valid, 1015 SdHoareTripleChecker+Invalid, 2041 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 241 IncrementalHoareTripleChecker+Valid, 1800 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-10-24 00:43:18,573 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [647 Valid, 1015 Invalid, 2041 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [241 Valid, 1800 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-10-24 00:43:18,574 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 409 states. [2024-10-24 00:43:18,599 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 409 to 288. [2024-10-24 00:43:18,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 288 states, 219 states have (on average 1.5799086757990868) internal successors, (346), 222 states have internal predecessors, (346), 51 states have call successors, (51), 15 states have call predecessors, (51), 17 states have return successors, (56), 50 states have call predecessors, (56), 50 states have call successors, (56) [2024-10-24 00:43:18,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 288 states to 288 states and 453 transitions. [2024-10-24 00:43:18,603 INFO L78 Accepts]: Start accepts. Automaton has 288 states and 453 transitions. Word has length 99 [2024-10-24 00:43:18,603 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 00:43:18,603 INFO L471 AbstractCegarLoop]: Abstraction has 288 states and 453 transitions. [2024-10-24 00:43:18,604 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 7.375) internal successors, (59), 5 states have internal predecessors, (59), 3 states have call successors, (14), 6 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) [2024-10-24 00:43:18,604 INFO L276 IsEmpty]: Start isEmpty. Operand 288 states and 453 transitions. [2024-10-24 00:43:18,605 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2024-10-24 00:43:18,605 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 00:43:18,606 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] [2024-10-24 00:43:18,606 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-24 00:43:18,606 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 00:43:18,607 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 00:43:18,607 INFO L85 PathProgramCache]: Analyzing trace with hash -1973452793, now seen corresponding path program 2 times [2024-10-24 00:43:18,607 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 00:43:18,607 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1033721785] [2024-10-24 00:43:18,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 00:43:18,607 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 00:43:18,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:43:18,765 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 00:43:18,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:43:18,778 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 00:43:18,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:43:18,783 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 00:43:18,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:43:18,786 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-24 00:43:18,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:43:18,788 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-24 00:43:18,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:43:18,813 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-24 00:43:18,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:43:18,825 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-10-24 00:43:18,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:43:18,840 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-10-24 00:43:18,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:43:18,842 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-10-24 00:43:18,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:43:18,845 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-10-24 00:43:18,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:43:18,849 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-10-24 00:43:18,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:43:18,850 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-10-24 00:43:18,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:43:18,856 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 00:43:18,856 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 00:43:18,856 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1033721785] [2024-10-24 00:43:18,856 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1033721785] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 00:43:18,856 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 00:43:18,856 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-10-24 00:43:18,856 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [687739469] [2024-10-24 00:43:18,856 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 00:43:18,857 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-24 00:43:18,857 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 00:43:18,857 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-24 00:43:18,857 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-10-24 00:43:18,857 INFO L87 Difference]: Start difference. First operand 288 states and 453 transitions. Second operand has 9 states, 8 states have (on average 7.5) internal successors, (60), 5 states have internal predecessors, (60), 3 states have call successors, (14), 6 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) [2024-10-24 00:43:20,412 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 00:43:20,412 INFO L93 Difference]: Finished difference Result 680 states and 1081 transitions. [2024-10-24 00:43:20,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-10-24 00:43:20,412 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 7.5) internal successors, (60), 5 states have internal predecessors, (60), 3 states have call successors, (14), 6 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) Word has length 100 [2024-10-24 00:43:20,413 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 00:43:20,415 INFO L225 Difference]: With dead ends: 680 [2024-10-24 00:43:20,415 INFO L226 Difference]: Without dead ends: 411 [2024-10-24 00:43:20,417 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=72, Invalid=200, Unknown=0, NotChecked=0, Total=272 [2024-10-24 00:43:20,417 INFO L432 NwaCegarLoop]: 166 mSDtfsCounter, 642 mSDsluCounter, 849 mSDsCounter, 0 mSdLazyCounter, 1808 mSolverCounterSat, 241 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 643 SdHoareTripleChecker+Valid, 1015 SdHoareTripleChecker+Invalid, 2049 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 241 IncrementalHoareTripleChecker+Valid, 1808 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-10-24 00:43:20,418 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [643 Valid, 1015 Invalid, 2049 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [241 Valid, 1808 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-10-24 00:43:20,418 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 411 states. [2024-10-24 00:43:20,448 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 411 to 290. [2024-10-24 00:43:20,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 290 states, 220 states have (on average 1.5772727272727274) internal successors, (347), 224 states have internal predecessors, (347), 51 states have call successors, (51), 15 states have call predecessors, (51), 18 states have return successors, (58), 50 states have call predecessors, (58), 50 states have call successors, (58) [2024-10-24 00:43:20,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 290 states to 290 states and 456 transitions. [2024-10-24 00:43:20,451 INFO L78 Accepts]: Start accepts. Automaton has 290 states and 456 transitions. Word has length 100 [2024-10-24 00:43:20,451 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 00:43:20,451 INFO L471 AbstractCegarLoop]: Abstraction has 290 states and 456 transitions. [2024-10-24 00:43:20,452 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 7.5) internal successors, (60), 5 states have internal predecessors, (60), 3 states have call successors, (14), 6 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) [2024-10-24 00:43:20,452 INFO L276 IsEmpty]: Start isEmpty. Operand 290 states and 456 transitions. [2024-10-24 00:43:20,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-10-24 00:43:20,453 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 00:43:20,453 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] [2024-10-24 00:43:20,454 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-24 00:43:20,454 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 00:43:20,454 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 00:43:20,454 INFO L85 PathProgramCache]: Analyzing trace with hash 2070118437, now seen corresponding path program 1 times [2024-10-24 00:43:20,454 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 00:43:20,454 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1344096423] [2024-10-24 00:43:20,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 00:43:20,455 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 00:43:20,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:43:20,572 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 00:43:20,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:43:20,583 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 00:43:20,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:43:20,586 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 00:43:20,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:43:20,588 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-24 00:43:20,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:43:20,590 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-24 00:43:20,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:43:20,613 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-24 00:43:20,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:43:20,650 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-10-24 00:43:20,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:43:20,665 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-10-24 00:43:20,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:43:20,669 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-10-24 00:43:20,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:43:20,671 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-10-24 00:43:20,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:43:20,673 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-10-24 00:43:20,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:43:20,674 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-24 00:43:20,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:43:20,676 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 00:43:20,676 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 00:43:20,676 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1344096423] [2024-10-24 00:43:20,676 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1344096423] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 00:43:20,676 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 00:43:20,676 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-10-24 00:43:20,676 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [525510112] [2024-10-24 00:43:20,677 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 00:43:20,677 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-10-24 00:43:20,677 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 00:43:20,678 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-10-24 00:43:20,678 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2024-10-24 00:43:20,678 INFO L87 Difference]: Start difference. First operand 290 states and 456 transitions. Second operand has 12 states, 11 states have (on average 5.818181818181818) internal successors, (64), 8 states have internal predecessors, (64), 4 states have call successors, (14), 6 states have call predecessors, (14), 3 states have return successors, (12), 3 states have call predecessors, (12), 4 states have call successors, (12) [2024-10-24 00:43:22,820 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 00:43:22,820 INFO L93 Difference]: Finished difference Result 678 states and 1076 transitions. [2024-10-24 00:43:22,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-24 00:43:22,821 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 5.818181818181818) internal successors, (64), 8 states have internal predecessors, (64), 4 states have call successors, (14), 6 states have call predecessors, (14), 3 states have return successors, (12), 3 states have call predecessors, (12), 4 states have call successors, (12) Word has length 101 [2024-10-24 00:43:22,821 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 00:43:22,826 INFO L225 Difference]: With dead ends: 678 [2024-10-24 00:43:22,828 INFO L226 Difference]: Without dead ends: 411 [2024-10-24 00:43:22,830 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=102, Invalid=404, Unknown=0, NotChecked=0, Total=506 [2024-10-24 00:43:22,830 INFO L432 NwaCegarLoop]: 164 mSDtfsCounter, 646 mSDsluCounter, 1244 mSDsCounter, 0 mSdLazyCounter, 2944 mSolverCounterSat, 246 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 647 SdHoareTripleChecker+Valid, 1408 SdHoareTripleChecker+Invalid, 3190 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 246 IncrementalHoareTripleChecker+Valid, 2944 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-10-24 00:43:22,830 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [647 Valid, 1408 Invalid, 3190 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [246 Valid, 2944 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-10-24 00:43:22,831 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 411 states. [2024-10-24 00:43:22,854 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 411 to 290. [2024-10-24 00:43:22,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 290 states, 220 states have (on average 1.5772727272727274) internal successors, (347), 224 states have internal predecessors, (347), 51 states have call successors, (51), 15 states have call predecessors, (51), 18 states have return successors, (57), 50 states have call predecessors, (57), 50 states have call successors, (57) [2024-10-24 00:43:22,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 290 states to 290 states and 455 transitions. [2024-10-24 00:43:22,858 INFO L78 Accepts]: Start accepts. Automaton has 290 states and 455 transitions. Word has length 101 [2024-10-24 00:43:22,858 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 00:43:22,858 INFO L471 AbstractCegarLoop]: Abstraction has 290 states and 455 transitions. [2024-10-24 00:43:22,858 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 5.818181818181818) internal successors, (64), 8 states have internal predecessors, (64), 4 states have call successors, (14), 6 states have call predecessors, (14), 3 states have return successors, (12), 3 states have call predecessors, (12), 4 states have call successors, (12) [2024-10-24 00:43:22,858 INFO L276 IsEmpty]: Start isEmpty. Operand 290 states and 455 transitions. [2024-10-24 00:43:22,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2024-10-24 00:43:22,860 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 00:43:22,860 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] [2024-10-24 00:43:22,861 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-24 00:43:22,861 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 00:43:22,861 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 00:43:22,861 INFO L85 PathProgramCache]: Analyzing trace with hash 1582730148, now seen corresponding path program 2 times [2024-10-24 00:43:22,861 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 00:43:22,861 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [185061241] [2024-10-24 00:43:22,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 00:43:22,862 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 00:43:22,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:43:22,993 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 00:43:22,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:43:23,004 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 00:43:23,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:43:23,008 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 00:43:23,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:43:23,011 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-24 00:43:23,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:43:23,014 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-24 00:43:23,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:43:23,042 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-24 00:43:23,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:43:23,079 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-24 00:43:23,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:43:23,097 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-10-24 00:43:23,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:43:23,100 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-10-24 00:43:23,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:43:23,102 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-10-24 00:43:23,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:43:23,104 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-10-24 00:43:23,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:43:23,106 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-10-24 00:43:23,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:43:23,108 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 00:43:23,109 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 00:43:23,109 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [185061241] [2024-10-24 00:43:23,109 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [185061241] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 00:43:23,109 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 00:43:23,109 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-10-24 00:43:23,110 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [690199083] [2024-10-24 00:43:23,110 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 00:43:23,110 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-10-24 00:43:23,110 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 00:43:23,111 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-10-24 00:43:23,111 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2024-10-24 00:43:23,112 INFO L87 Difference]: Start difference. First operand 290 states and 455 transitions. Second operand has 12 states, 11 states have (on average 5.909090909090909) internal successors, (65), 8 states have internal predecessors, (65), 4 states have call successors, (14), 6 states have call predecessors, (14), 3 states have return successors, (12), 3 states have call predecessors, (12), 4 states have call successors, (12) [2024-10-24 00:43:25,158 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 00:43:25,159 INFO L93 Difference]: Finished difference Result 680 states and 1082 transitions. [2024-10-24 00:43:25,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-24 00:43:25,159 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 5.909090909090909) internal successors, (65), 8 states have internal predecessors, (65), 4 states have call successors, (14), 6 states have call predecessors, (14), 3 states have return successors, (12), 3 states have call predecessors, (12), 4 states have call successors, (12) Word has length 102 [2024-10-24 00:43:25,159 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 00:43:25,164 INFO L225 Difference]: With dead ends: 680 [2024-10-24 00:43:25,164 INFO L226 Difference]: Without dead ends: 413 [2024-10-24 00:43:25,167 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=102, Invalid=404, Unknown=0, NotChecked=0, Total=506 [2024-10-24 00:43:25,168 INFO L432 NwaCegarLoop]: 165 mSDtfsCounter, 642 mSDsluCounter, 1244 mSDsCounter, 0 mSdLazyCounter, 2975 mSolverCounterSat, 244 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 643 SdHoareTripleChecker+Valid, 1409 SdHoareTripleChecker+Invalid, 3219 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 244 IncrementalHoareTripleChecker+Valid, 2975 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-10-24 00:43:25,168 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [643 Valid, 1409 Invalid, 3219 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [244 Valid, 2975 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-10-24 00:43:25,170 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 413 states. [2024-10-24 00:43:25,197 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 413 to 292. [2024-10-24 00:43:25,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 292 states, 221 states have (on average 1.5746606334841629) internal successors, (348), 226 states have internal predecessors, (348), 51 states have call successors, (51), 15 states have call predecessors, (51), 19 states have return successors, (62), 50 states have call predecessors, (62), 50 states have call successors, (62) [2024-10-24 00:43:25,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 292 states to 292 states and 461 transitions. [2024-10-24 00:43:25,202 INFO L78 Accepts]: Start accepts. Automaton has 292 states and 461 transitions. Word has length 102 [2024-10-24 00:43:25,202 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 00:43:25,202 INFO L471 AbstractCegarLoop]: Abstraction has 292 states and 461 transitions. [2024-10-24 00:43:25,203 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 5.909090909090909) internal successors, (65), 8 states have internal predecessors, (65), 4 states have call successors, (14), 6 states have call predecessors, (14), 3 states have return successors, (12), 3 states have call predecessors, (12), 4 states have call successors, (12) [2024-10-24 00:43:25,203 INFO L276 IsEmpty]: Start isEmpty. Operand 292 states and 461 transitions. [2024-10-24 00:43:25,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2024-10-24 00:43:25,204 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 00:43:25,205 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] [2024-10-24 00:43:25,205 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-24 00:43:25,205 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 00:43:25,206 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 00:43:25,206 INFO L85 PathProgramCache]: Analyzing trace with hash -1684896438, now seen corresponding path program 1 times [2024-10-24 00:43:25,206 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 00:43:25,206 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [326434747] [2024-10-24 00:43:25,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 00:43:25,206 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 00:43:25,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:43:25,365 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 00:43:25,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:43:25,378 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 00:43:25,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:43:25,381 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 00:43:25,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:43:25,404 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-24 00:43:25,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:43:25,409 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-24 00:43:25,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:43:25,416 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-24 00:43:25,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:43:25,433 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-24 00:43:25,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:43:25,445 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 00:43:25,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:43:25,447 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-10-24 00:43:25,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:43:25,448 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-10-24 00:43:25,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:43:25,449 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-10-24 00:43:25,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:43:25,451 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2024-10-24 00:43:25,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:43:25,452 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2024-10-24 00:43:25,452 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 00:43:25,452 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [326434747] [2024-10-24 00:43:25,453 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [326434747] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 00:43:25,453 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2117223953] [2024-10-24 00:43:25,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 00:43:25,453 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 00:43:25,453 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 00:43:25,455 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 00:43:25,456 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 00:43:25,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:43:25,693 INFO L255 TraceCheckSpWp]: Trace formula consists of 904 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-24 00:43:25,697 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 00:43:25,739 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 00:43:25,739 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-24 00:43:25,845 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 00:43:25,846 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2117223953] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-24 00:43:25,846 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-24 00:43:25,846 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 4, 4] total 15 [2024-10-24 00:43:25,846 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1300842804] [2024-10-24 00:43:25,846 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-24 00:43:25,847 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-10-24 00:43:25,849 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 00:43:25,850 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-10-24 00:43:25,850 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=177, Unknown=0, NotChecked=0, Total=210 [2024-10-24 00:43:25,851 INFO L87 Difference]: Start difference. First operand 292 states and 461 transitions. Second operand has 15 states, 14 states have (on average 7.5) internal successors, (105), 11 states have internal predecessors, (105), 4 states have call successors, (30), 6 states have call predecessors, (30), 3 states have return successors, (22), 3 states have call predecessors, (22), 4 states have call successors, (22) [2024-10-24 00:43:28,267 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 00:43:28,267 INFO L93 Difference]: Finished difference Result 1029 states and 1728 transitions. [2024-10-24 00:43:28,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-10-24 00:43:28,267 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 7.5) internal successors, (105), 11 states have internal predecessors, (105), 4 states have call successors, (30), 6 states have call predecessors, (30), 3 states have return successors, (22), 3 states have call predecessors, (22), 4 states have call successors, (22) Word has length 103 [2024-10-24 00:43:28,268 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 00:43:28,273 INFO L225 Difference]: With dead ends: 1029 [2024-10-24 00:43:28,273 INFO L226 Difference]: Without dead ends: 763 [2024-10-24 00:43:28,274 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 255 GetRequests, 225 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 149 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=164, Invalid=828, Unknown=0, NotChecked=0, Total=992 [2024-10-24 00:43:28,275 INFO L432 NwaCegarLoop]: 165 mSDtfsCounter, 1575 mSDsluCounter, 1520 mSDsCounter, 0 mSdLazyCounter, 3428 mSolverCounterSat, 530 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1593 SdHoareTripleChecker+Valid, 1685 SdHoareTripleChecker+Invalid, 3958 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 530 IncrementalHoareTripleChecker+Valid, 3428 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-10-24 00:43:28,276 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1593 Valid, 1685 Invalid, 3958 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [530 Valid, 3428 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-10-24 00:43:28,277 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 763 states. [2024-10-24 00:43:28,317 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 763 to 627. [2024-10-24 00:43:28,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 627 states, 492 states have (on average 1.6280487804878048) internal successors, (801), 497 states have internal predecessors, (801), 115 states have call successors, (115), 15 states have call predecessors, (115), 19 states have return successors, (136), 114 states have call predecessors, (136), 114 states have call successors, (136) [2024-10-24 00:43:28,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 627 states to 627 states and 1052 transitions. [2024-10-24 00:43:28,322 INFO L78 Accepts]: Start accepts. Automaton has 627 states and 1052 transitions. Word has length 103 [2024-10-24 00:43:28,322 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 00:43:28,322 INFO L471 AbstractCegarLoop]: Abstraction has 627 states and 1052 transitions. [2024-10-24 00:43:28,323 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 7.5) internal successors, (105), 11 states have internal predecessors, (105), 4 states have call successors, (30), 6 states have call predecessors, (30), 3 states have return successors, (22), 3 states have call predecessors, (22), 4 states have call successors, (22) [2024-10-24 00:43:28,323 INFO L276 IsEmpty]: Start isEmpty. Operand 627 states and 1052 transitions. [2024-10-24 00:43:28,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-10-24 00:43:28,327 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 00:43:28,329 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] [2024-10-24 00:43:28,351 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 00:43:28,530 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 00:43:28,531 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 00:43:28,531 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 00:43:28,531 INFO L85 PathProgramCache]: Analyzing trace with hash -1339410134, now seen corresponding path program 1 times [2024-10-24 00:43:28,531 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 00:43:28,531 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [588206654] [2024-10-24 00:43:28,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 00:43:28,532 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 00:43:28,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:43:28,591 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 00:43:28,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:43:28,601 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 00:43:28,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:43:28,604 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 00:43:28,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:43:28,606 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-24 00:43:28,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:43:28,608 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-24 00:43:28,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:43:28,610 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-24 00:43:28,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:43:28,619 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-10-24 00:43:28,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:43:28,632 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-10-24 00:43:28,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:43:28,635 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-10-24 00:43:28,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:43:28,636 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-10-24 00:43:28,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:43:28,639 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-24 00:43:28,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:43:28,641 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-10-24 00:43:28,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:43:28,643 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 00:43:28,643 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 00:43:28,643 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [588206654] [2024-10-24 00:43:28,643 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [588206654] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 00:43:28,643 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 00:43:28,643 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 00:43:28,644 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1416977319] [2024-10-24 00:43:28,644 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 00:43:28,644 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 00:43:28,644 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 00:43:28,645 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 00:43:28,645 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 00:43:28,645 INFO L87 Difference]: Start difference. First operand 627 states and 1052 transitions. Second operand has 7 states, 7 states have (on average 9.285714285714286) internal successors, (65), 3 states have internal predecessors, (65), 2 states have call successors, (14), 6 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-10-24 00:43:29,849 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 00:43:29,849 INFO L93 Difference]: Finished difference Result 1624 states and 2787 transitions. [2024-10-24 00:43:29,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-24 00:43:29,849 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.285714285714286) internal successors, (65), 3 states have internal predecessors, (65), 2 states have call successors, (14), 6 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 107 [2024-10-24 00:43:29,850 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 00:43:29,857 INFO L225 Difference]: With dead ends: 1624 [2024-10-24 00:43:29,857 INFO L226 Difference]: Without dead ends: 1065 [2024-10-24 00:43:29,860 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-10-24 00:43:29,861 INFO L432 NwaCegarLoop]: 183 mSDtfsCounter, 748 mSDsluCounter, 600 mSDsCounter, 0 mSdLazyCounter, 1087 mSolverCounterSat, 295 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 764 SdHoareTripleChecker+Valid, 783 SdHoareTripleChecker+Invalid, 1382 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 295 IncrementalHoareTripleChecker+Valid, 1087 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-10-24 00:43:29,861 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [764 Valid, 783 Invalid, 1382 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [295 Valid, 1087 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-10-24 00:43:29,862 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1065 states. [2024-10-24 00:43:29,908 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1065 to 939. [2024-10-24 00:43:29,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 939 states, 740 states have (on average 1.6391891891891892) internal successors, (1213), 745 states have internal predecessors, (1213), 179 states have call successors, (179), 15 states have call predecessors, (179), 19 states have return successors, (210), 178 states have call predecessors, (210), 178 states have call successors, (210) [2024-10-24 00:43:29,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 939 states to 939 states and 1602 transitions. [2024-10-24 00:43:29,914 INFO L78 Accepts]: Start accepts. Automaton has 939 states and 1602 transitions. Word has length 107 [2024-10-24 00:43:29,915 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 00:43:29,915 INFO L471 AbstractCegarLoop]: Abstraction has 939 states and 1602 transitions. [2024-10-24 00:43:29,915 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.285714285714286) internal successors, (65), 3 states have internal predecessors, (65), 2 states have call successors, (14), 6 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-10-24 00:43:29,915 INFO L276 IsEmpty]: Start isEmpty. Operand 939 states and 1602 transitions. [2024-10-24 00:43:29,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-10-24 00:43:29,920 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 00:43:29,920 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] [2024-10-24 00:43:29,920 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-24 00:43:29,920 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 00:43:29,921 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 00:43:29,921 INFO L85 PathProgramCache]: Analyzing trace with hash 1124666228, now seen corresponding path program 1 times [2024-10-24 00:43:29,921 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 00:43:29,921 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2108145011] [2024-10-24 00:43:29,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 00:43:29,921 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 00:43:29,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:43:29,980 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 00:43:29,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:43:29,989 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 00:43:29,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:43:29,993 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 00:43:29,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:43:29,995 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-24 00:43:29,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:43:29,997 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-24 00:43:29,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:43:29,999 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-24 00:43:30,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:43:30,023 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 00:43:30,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:43:30,033 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-10-24 00:43:30,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:43:30,035 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-10-24 00:43:30,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:43:30,037 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-10-24 00:43:30,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:43:30,039 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-10-24 00:43:30,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:43:30,040 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-10-24 00:43:30,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:43:30,041 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 00:43:30,075 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 00:43:30,076 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2108145011] [2024-10-24 00:43:30,076 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2108145011] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 00:43:30,076 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 00:43:30,076 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 00:43:30,076 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [597805756] [2024-10-24 00:43:30,076 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 00:43:30,077 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 00:43:30,077 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 00:43:30,078 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 00:43:30,079 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 00:43:30,079 INFO L87 Difference]: Start difference. First operand 939 states and 1602 transitions. Second operand has 7 states, 7 states have (on average 9.428571428571429) internal successors, (66), 3 states have internal predecessors, (66), 2 states have call successors, (14), 6 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-10-24 00:43:31,233 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 00:43:31,233 INFO L93 Difference]: Finished difference Result 2393 states and 4135 transitions. [2024-10-24 00:43:31,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-24 00:43:31,234 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.428571428571429) internal successors, (66), 3 states have internal predecessors, (66), 2 states have call successors, (14), 6 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 108 [2024-10-24 00:43:31,234 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 00:43:31,245 INFO L225 Difference]: With dead ends: 2393 [2024-10-24 00:43:31,246 INFO L226 Difference]: Without dead ends: 1572 [2024-10-24 00:43:31,250 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-10-24 00:43:31,251 INFO L432 NwaCegarLoop]: 168 mSDtfsCounter, 744 mSDsluCounter, 577 mSDsCounter, 0 mSdLazyCounter, 1062 mSolverCounterSat, 299 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 759 SdHoareTripleChecker+Valid, 745 SdHoareTripleChecker+Invalid, 1361 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 299 IncrementalHoareTripleChecker+Valid, 1062 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-10-24 00:43:31,252 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [759 Valid, 745 Invalid, 1361 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [299 Valid, 1062 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-10-24 00:43:31,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1572 states. [2024-10-24 00:43:31,350 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1572 to 1446. [2024-10-24 00:43:31,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1446 states, 1152 states have (on average 1.6432291666666667) internal successors, (1893), 1157 states have internal predecessors, (1893), 274 states have call successors, (274), 15 states have call predecessors, (274), 19 states have return successors, (305), 273 states have call predecessors, (305), 273 states have call successors, (305) [2024-10-24 00:43:31,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1446 states to 1446 states and 2472 transitions. [2024-10-24 00:43:31,364 INFO L78 Accepts]: Start accepts. Automaton has 1446 states and 2472 transitions. Word has length 108 [2024-10-24 00:43:31,365 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 00:43:31,365 INFO L471 AbstractCegarLoop]: Abstraction has 1446 states and 2472 transitions. [2024-10-24 00:43:31,365 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.428571428571429) internal successors, (66), 3 states have internal predecessors, (66), 2 states have call successors, (14), 6 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-10-24 00:43:31,365 INFO L276 IsEmpty]: Start isEmpty. Operand 1446 states and 2472 transitions. [2024-10-24 00:43:31,373 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-10-24 00:43:31,374 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 00:43:31,374 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] [2024-10-24 00:43:31,374 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-10-24 00:43:31,375 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 00:43:31,375 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 00:43:31,375 INFO L85 PathProgramCache]: Analyzing trace with hash -2103438152, now seen corresponding path program 1 times [2024-10-24 00:43:31,375 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 00:43:31,376 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1837648490] [2024-10-24 00:43:31,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 00:43:31,376 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 00:43:31,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:43:31,448 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 00:43:31,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:43:31,461 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 00:43:31,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:43:31,464 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 00:43:31,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:43:31,466 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-24 00:43:31,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:43:31,469 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-24 00:43:31,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:43:31,472 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-24 00:43:31,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:43:31,483 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-10-24 00:43:31,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:43:31,497 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 00:43:31,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:43:31,500 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-10-24 00:43:31,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:43:31,502 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-24 00:43:31,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:43:31,507 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2024-10-24 00:43:31,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:43:31,509 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-10-24 00:43:31,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:43:31,511 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 00:43:31,511 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 00:43:31,511 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1837648490] [2024-10-24 00:43:31,512 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1837648490] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 00:43:31,512 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 00:43:31,512 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 00:43:31,512 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [733032018] [2024-10-24 00:43:31,513 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 00:43:31,513 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 00:43:31,513 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 00:43:31,514 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 00:43:31,514 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 00:43:31,515 INFO L87 Difference]: Start difference. First operand 1446 states and 2472 transitions. Second operand has 7 states, 7 states have (on average 9.571428571428571) internal successors, (67), 3 states have internal predecessors, (67), 2 states have call successors, (14), 6 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-10-24 00:43:32,657 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 00:43:32,657 INFO L93 Difference]: Finished difference Result 3539 states and 6160 transitions. [2024-10-24 00:43:32,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-24 00:43:32,658 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.571428571428571) internal successors, (67), 3 states have internal predecessors, (67), 2 states have call successors, (14), 6 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 109 [2024-10-24 00:43:32,658 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 00:43:32,670 INFO L225 Difference]: With dead ends: 3539 [2024-10-24 00:43:32,670 INFO L226 Difference]: Without dead ends: 2339 [2024-10-24 00:43:32,675 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-10-24 00:43:32,676 INFO L432 NwaCegarLoop]: 164 mSDtfsCounter, 745 mSDsluCounter, 572 mSDsCounter, 0 mSdLazyCounter, 1046 mSolverCounterSat, 296 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 761 SdHoareTripleChecker+Valid, 736 SdHoareTripleChecker+Invalid, 1342 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 296 IncrementalHoareTripleChecker+Valid, 1046 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-10-24 00:43:32,676 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [761 Valid, 736 Invalid, 1342 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [296 Valid, 1046 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-10-24 00:43:32,678 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2339 states. [2024-10-24 00:43:32,816 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2339 to 2213. [2024-10-24 00:43:32,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2213 states, 1796 states have (on average 1.6469933184855234) internal successors, (2958), 1801 states have internal predecessors, (2958), 397 states have call successors, (397), 15 states have call predecessors, (397), 19 states have return successors, (444), 396 states have call predecessors, (444), 396 states have call successors, (444) [2024-10-24 00:43:32,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2213 states to 2213 states and 3799 transitions. [2024-10-24 00:43:32,833 INFO L78 Accepts]: Start accepts. Automaton has 2213 states and 3799 transitions. Word has length 109 [2024-10-24 00:43:32,833 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 00:43:32,834 INFO L471 AbstractCegarLoop]: Abstraction has 2213 states and 3799 transitions. [2024-10-24 00:43:32,834 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.571428571428571) internal successors, (67), 3 states have internal predecessors, (67), 2 states have call successors, (14), 6 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-10-24 00:43:32,834 INFO L276 IsEmpty]: Start isEmpty. Operand 2213 states and 3799 transitions. [2024-10-24 00:43:32,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2024-10-24 00:43:32,843 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 00:43:32,843 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] [2024-10-24 00:43:32,844 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-10-24 00:43:32,844 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 00:43:32,844 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 00:43:32,844 INFO L85 PathProgramCache]: Analyzing trace with hash 1467582229, now seen corresponding path program 1 times [2024-10-24 00:43:32,844 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 00:43:32,844 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1952210343] [2024-10-24 00:43:32,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 00:43:32,845 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 00:43:32,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:43:32,900 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 00:43:32,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:43:32,910 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 00:43:32,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:43:32,913 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 00:43:32,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:43:32,915 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-24 00:43:32,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:43:32,917 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-24 00:43:32,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:43:32,919 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-24 00:43:32,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:43:32,927 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-10-24 00:43:32,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:43:32,936 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-10-24 00:43:32,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:43:32,938 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-10-24 00:43:32,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:43:32,940 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-10-24 00:43:32,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:43:32,942 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-24 00:43:32,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:43:32,943 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-24 00:43:32,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:43:32,944 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 00:43:32,944 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 00:43:32,944 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1952210343] [2024-10-24 00:43:32,944 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1952210343] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 00:43:32,945 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 00:43:32,945 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 00:43:32,945 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [140512782] [2024-10-24 00:43:32,945 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 00:43:32,945 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 00:43:32,945 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 00:43:32,946 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 00:43:32,946 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 00:43:32,946 INFO L87 Difference]: Start difference. First operand 2213 states and 3799 transitions. Second operand has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 3 states have internal predecessors, (68), 2 states have call successors, (14), 6 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-10-24 00:43:33,970 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 00:43:33,970 INFO L93 Difference]: Finished difference Result 5321 states and 9318 transitions. [2024-10-24 00:43:33,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-24 00:43:33,970 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 3 states have internal predecessors, (68), 2 states have call successors, (14), 6 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 110 [2024-10-24 00:43:33,971 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 00:43:33,991 INFO L225 Difference]: With dead ends: 5321 [2024-10-24 00:43:33,991 INFO L226 Difference]: Without dead ends: 3563 [2024-10-24 00:43:33,997 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-10-24 00:43:33,998 INFO L432 NwaCegarLoop]: 165 mSDtfsCounter, 740 mSDsluCounter, 572 mSDsCounter, 0 mSdLazyCounter, 1060 mSolverCounterSat, 291 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 755 SdHoareTripleChecker+Valid, 737 SdHoareTripleChecker+Invalid, 1351 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 291 IncrementalHoareTripleChecker+Valid, 1060 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-10-24 00:43:33,998 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [755 Valid, 737 Invalid, 1351 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [291 Valid, 1060 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-10-24 00:43:34,001 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3563 states. [2024-10-24 00:43:34,154 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3563 to 3437. [2024-10-24 00:43:34,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3437 states, 2841 states have (on average 1.6494192185850052) internal successors, (4686), 2846 states have internal predecessors, (4686), 576 states have call successors, (576), 15 states have call predecessors, (576), 19 states have return successors, (649), 575 states have call predecessors, (649), 575 states have call successors, (649) [2024-10-24 00:43:34,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3437 states to 3437 states and 5911 transitions. [2024-10-24 00:43:34,176 INFO L78 Accepts]: Start accepts. Automaton has 3437 states and 5911 transitions. Word has length 110 [2024-10-24 00:43:34,177 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 00:43:34,177 INFO L471 AbstractCegarLoop]: Abstraction has 3437 states and 5911 transitions. [2024-10-24 00:43:34,178 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 3 states have internal predecessors, (68), 2 states have call successors, (14), 6 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-10-24 00:43:34,178 INFO L276 IsEmpty]: Start isEmpty. Operand 3437 states and 5911 transitions. [2024-10-24 00:43:34,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-10-24 00:43:34,188 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 00:43:34,188 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] [2024-10-24 00:43:34,189 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-10-24 00:43:34,189 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 00:43:34,189 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 00:43:34,189 INFO L85 PathProgramCache]: Analyzing trace with hash -701568396, now seen corresponding path program 1 times [2024-10-24 00:43:34,190 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 00:43:34,190 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1906956416] [2024-10-24 00:43:34,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 00:43:34,190 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 00:43:34,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:43:34,252 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 00:43:34,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:43:34,262 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 00:43:34,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:43:34,267 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 00:43:34,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:43:34,269 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-24 00:43:34,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:43:34,271 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-24 00:43:34,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:43:34,273 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-24 00:43:34,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:43:34,283 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-10-24 00:43:34,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:43:34,293 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-10-24 00:43:34,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:43:34,297 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-24 00:43:34,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:43:34,299 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-24 00:43:34,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:43:34,304 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-10-24 00:43:34,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:43:34,305 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-10-24 00:43:34,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:43:34,306 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 00:43:34,310 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 00:43:34,310 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1906956416] [2024-10-24 00:43:34,310 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1906956416] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 00:43:34,310 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 00:43:34,311 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 00:43:34,311 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [180433079] [2024-10-24 00:43:34,311 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 00:43:34,311 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 00:43:34,311 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 00:43:34,312 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 00:43:34,312 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 00:43:34,312 INFO L87 Difference]: Start difference. First operand 3437 states and 5911 transitions. Second operand has 7 states, 7 states have (on average 9.857142857142858) internal successors, (69), 3 states have internal predecessors, (69), 2 states have call successors, (14), 6 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-10-24 00:43:35,515 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 00:43:35,515 INFO L93 Difference]: Finished difference Result 8300 states and 14558 transitions. [2024-10-24 00:43:35,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-24 00:43:35,516 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.857142857142858) internal successors, (69), 3 states have internal predecessors, (69), 2 states have call successors, (14), 6 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 111 [2024-10-24 00:43:35,516 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 00:43:35,550 INFO L225 Difference]: With dead ends: 8300 [2024-10-24 00:43:35,551 INFO L226 Difference]: Without dead ends: 5621 [2024-10-24 00:43:35,563 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-10-24 00:43:35,564 INFO L432 NwaCegarLoop]: 179 mSDtfsCounter, 739 mSDsluCounter, 591 mSDsCounter, 0 mSdLazyCounter, 1082 mSolverCounterSat, 293 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 755 SdHoareTripleChecker+Valid, 770 SdHoareTripleChecker+Invalid, 1375 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 293 IncrementalHoareTripleChecker+Valid, 1082 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-10-24 00:43:35,564 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [755 Valid, 770 Invalid, 1375 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [293 Valid, 1082 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-10-24 00:43:35,570 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5621 states. [2024-10-24 00:43:35,904 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5621 to 5495. [2024-10-24 00:43:35,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5495 states, 4523 states have (on average 1.6380720760557153) internal successors, (7409), 4528 states have internal predecessors, (7409), 952 states have call successors, (952), 15 states have call predecessors, (952), 19 states have return successors, (1069), 951 states have call predecessors, (1069), 951 states have call successors, (1069) [2024-10-24 00:43:35,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5495 states to 5495 states and 9430 transitions. [2024-10-24 00:43:35,945 INFO L78 Accepts]: Start accepts. Automaton has 5495 states and 9430 transitions. Word has length 111 [2024-10-24 00:43:35,946 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 00:43:35,946 INFO L471 AbstractCegarLoop]: Abstraction has 5495 states and 9430 transitions. [2024-10-24 00:43:35,946 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.857142857142858) internal successors, (69), 3 states have internal predecessors, (69), 2 states have call successors, (14), 6 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-10-24 00:43:35,947 INFO L276 IsEmpty]: Start isEmpty. Operand 5495 states and 9430 transitions. [2024-10-24 00:43:35,960 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2024-10-24 00:43:35,961 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 00:43:35,961 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] [2024-10-24 00:43:35,961 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-10-24 00:43:35,961 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 00:43:35,962 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 00:43:35,962 INFO L85 PathProgramCache]: Analyzing trace with hash -927091367, now seen corresponding path program 1 times [2024-10-24 00:43:35,962 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 00:43:35,962 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2017925673] [2024-10-24 00:43:35,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 00:43:35,962 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 00:43:35,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:43:36,030 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 00:43:36,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:43:36,040 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 00:43:36,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:43:36,043 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 00:43:36,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:43:36,045 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-24 00:43:36,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:43:36,047 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-24 00:43:36,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:43:36,050 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-24 00:43:36,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:43:36,058 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-10-24 00:43:36,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:43:36,068 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-10-24 00:43:36,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:43:36,071 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-10-24 00:43:36,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:43:36,072 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-10-24 00:43:36,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:43:36,074 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-10-24 00:43:36,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:43:36,075 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-10-24 00:43:36,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:43:36,077 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 00:43:36,077 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 00:43:36,077 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2017925673] [2024-10-24 00:43:36,077 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2017925673] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 00:43:36,077 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 00:43:36,079 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 00:43:36,080 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [304189539] [2024-10-24 00:43:36,080 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 00:43:36,081 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 00:43:36,081 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 00:43:36,081 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 00:43:36,081 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 00:43:36,082 INFO L87 Difference]: Start difference. First operand 5495 states and 9430 transitions. Second operand has 7 states, 7 states have (on average 10.0) internal successors, (70), 3 states have internal predecessors, (70), 2 states have call successors, (14), 6 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-10-24 00:43:37,449 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 00:43:37,449 INFO L93 Difference]: Finished difference Result 13661 states and 23915 transitions. [2024-10-24 00:43:37,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-24 00:43:37,450 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.0) internal successors, (70), 3 states have internal predecessors, (70), 2 states have call successors, (14), 6 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 112 [2024-10-24 00:43:37,450 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 00:43:37,500 INFO L225 Difference]: With dead ends: 13661 [2024-10-24 00:43:37,500 INFO L226 Difference]: Without dead ends: 9310 [2024-10-24 00:43:37,520 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-10-24 00:43:37,520 INFO L432 NwaCegarLoop]: 167 mSDtfsCounter, 736 mSDsluCounter, 577 mSDsCounter, 0 mSdLazyCounter, 1065 mSolverCounterSat, 299 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 751 SdHoareTripleChecker+Valid, 744 SdHoareTripleChecker+Invalid, 1364 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 299 IncrementalHoareTripleChecker+Valid, 1065 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-10-24 00:43:37,521 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [751 Valid, 744 Invalid, 1364 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [299 Valid, 1065 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-10-24 00:43:37,530 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9310 states. [2024-10-24 00:43:37,925 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9310 to 9184. [2024-10-24 00:43:37,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9184 states, 7606 states have (on average 1.6354194057323166) internal successors, (12439), 7611 states have internal predecessors, (12439), 1558 states have call successors, (1558), 15 states have call predecessors, (1558), 19 states have return successors, (1753), 1557 states have call predecessors, (1753), 1557 states have call successors, (1753) [2024-10-24 00:43:37,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9184 states to 9184 states and 15750 transitions. [2024-10-24 00:43:37,994 INFO L78 Accepts]: Start accepts. Automaton has 9184 states and 15750 transitions. Word has length 112 [2024-10-24 00:43:37,994 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 00:43:37,995 INFO L471 AbstractCegarLoop]: Abstraction has 9184 states and 15750 transitions. [2024-10-24 00:43:37,995 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.0) internal successors, (70), 3 states have internal predecessors, (70), 2 states have call successors, (14), 6 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-10-24 00:43:37,995 INFO L276 IsEmpty]: Start isEmpty. Operand 9184 states and 15750 transitions. [2024-10-24 00:43:38,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2024-10-24 00:43:38,014 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 00:43:38,014 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] [2024-10-24 00:43:38,015 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-10-24 00:43:38,015 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 00:43:38,015 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 00:43:38,015 INFO L85 PathProgramCache]: Analyzing trace with hash 485830754, now seen corresponding path program 1 times [2024-10-24 00:43:38,016 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 00:43:38,016 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1195695289] [2024-10-24 00:43:38,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 00:43:38,016 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 00:43:38,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:43:38,079 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 00:43:38,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:43:38,090 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 00:43:38,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:43:38,094 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 00:43:38,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:43:38,096 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-24 00:43:38,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:43:38,098 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-24 00:43:38,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:43:38,102 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-24 00:43:38,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:43:38,112 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-10-24 00:43:38,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:43:38,123 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-10-24 00:43:38,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:43:38,126 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-10-24 00:43:38,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:43:38,128 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-10-24 00:43:38,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:43:38,129 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-10-24 00:43:38,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:43:38,131 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-10-24 00:43:38,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:43:38,132 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 00:43:38,132 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 00:43:38,132 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1195695289] [2024-10-24 00:43:38,133 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1195695289] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 00:43:38,133 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 00:43:38,133 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 00:43:38,133 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [312705776] [2024-10-24 00:43:38,133 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 00:43:38,134 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 00:43:38,134 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 00:43:38,134 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 00:43:38,134 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 00:43:38,134 INFO L87 Difference]: Start difference. First operand 9184 states and 15750 transitions. Second operand has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 3 states have internal predecessors, (71), 2 states have call successors, (14), 6 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-10-24 00:43:39,640 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 00:43:39,641 INFO L93 Difference]: Finished difference Result 23853 states and 41679 transitions. [2024-10-24 00:43:39,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-24 00:43:39,641 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 3 states have internal predecessors, (71), 2 states have call successors, (14), 6 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 113 [2024-10-24 00:43:39,642 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 00:43:39,718 INFO L225 Difference]: With dead ends: 23853 [2024-10-24 00:43:39,719 INFO L226 Difference]: Without dead ends: 16270 [2024-10-24 00:43:39,757 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-10-24 00:43:39,758 INFO L432 NwaCegarLoop]: 172 mSDtfsCounter, 735 mSDsluCounter, 588 mSDsCounter, 0 mSdLazyCounter, 1070 mSolverCounterSat, 296 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 750 SdHoareTripleChecker+Valid, 760 SdHoareTripleChecker+Invalid, 1366 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 296 IncrementalHoareTripleChecker+Valid, 1070 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-10-24 00:43:39,759 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [750 Valid, 760 Invalid, 1366 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [296 Valid, 1070 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-10-24 00:43:39,777 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16270 states. [2024-10-24 00:43:40,416 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16270 to 16144. [2024-10-24 00:43:40,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16144 states, 13363 states have (on average 1.626281523609968) internal successors, (21732), 13368 states have internal predecessors, (21732), 2761 states have call successors, (2761), 15 states have call predecessors, (2761), 19 states have return successors, (3100), 2760 states have call predecessors, (3100), 2760 states have call successors, (3100) [2024-10-24 00:43:40,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16144 states to 16144 states and 27593 transitions. [2024-10-24 00:43:40,511 INFO L78 Accepts]: Start accepts. Automaton has 16144 states and 27593 transitions. Word has length 113 [2024-10-24 00:43:40,512 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 00:43:40,512 INFO L471 AbstractCegarLoop]: Abstraction has 16144 states and 27593 transitions. [2024-10-24 00:43:40,512 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 3 states have internal predecessors, (71), 2 states have call successors, (14), 6 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-10-24 00:43:40,512 INFO L276 IsEmpty]: Start isEmpty. Operand 16144 states and 27593 transitions. [2024-10-24 00:43:40,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2024-10-24 00:43:40,537 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 00:43:40,537 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] [2024-10-24 00:43:40,537 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-10-24 00:43:40,537 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 00:43:40,538 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 00:43:40,538 INFO L85 PathProgramCache]: Analyzing trace with hash 626860570, now seen corresponding path program 1 times [2024-10-24 00:43:40,538 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 00:43:40,538 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1621445699] [2024-10-24 00:43:40,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 00:43:40,539 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 00:43:40,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:43:40,592 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 00:43:40,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:43:40,602 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 00:43:40,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:43:40,605 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 00:43:40,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:43:40,608 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-24 00:43:40,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:43:40,612 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-24 00:43:40,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:43:40,613 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-24 00:43:40,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:43:40,623 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 00:43:40,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:43:40,633 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-24 00:43:40,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:43:40,635 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-10-24 00:43:40,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:43:40,637 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-10-24 00:43:40,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:43:40,639 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-10-24 00:43:40,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:43:40,640 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-10-24 00:43:40,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:43:40,642 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 00:43:40,643 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 00:43:40,643 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1621445699] [2024-10-24 00:43:40,643 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1621445699] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 00:43:40,643 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 00:43:40,643 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 00:43:40,644 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [346650609] [2024-10-24 00:43:40,644 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 00:43:40,644 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 00:43:40,645 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 00:43:40,645 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 00:43:40,645 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 00:43:40,646 INFO L87 Difference]: Start difference. First operand 16144 states and 27593 transitions. Second operand has 7 states, 7 states have (on average 10.285714285714286) internal successors, (72), 3 states have internal predecessors, (72), 2 states have call successors, (14), 6 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-10-24 00:43:42,356 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 00:43:42,357 INFO L93 Difference]: Finished difference Result 42828 states and 74691 transitions. [2024-10-24 00:43:42,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-24 00:43:42,357 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.285714285714286) internal successors, (72), 3 states have internal predecessors, (72), 2 states have call successors, (14), 6 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 114 [2024-10-24 00:43:42,358 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 00:43:42,486 INFO L225 Difference]: With dead ends: 42828 [2024-10-24 00:43:42,487 INFO L226 Difference]: Without dead ends: 28933 [2024-10-24 00:43:42,538 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-10-24 00:43:42,540 INFO L432 NwaCegarLoop]: 165 mSDtfsCounter, 733 mSDsluCounter, 573 mSDsCounter, 0 mSdLazyCounter, 1059 mSolverCounterSat, 301 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 749 SdHoareTripleChecker+Valid, 738 SdHoareTripleChecker+Invalid, 1360 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 301 IncrementalHoareTripleChecker+Valid, 1059 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-10-24 00:43:42,540 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [749 Valid, 738 Invalid, 1360 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [301 Valid, 1059 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-10-24 00:43:42,563 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28933 states. [2024-10-24 00:43:43,949 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28933 to 28807. [2024-10-24 00:43:43,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28807 states, 23987 states have (on average 1.6224621670071289) internal successors, (38918), 23992 states have internal predecessors, (38918), 4800 states have call successors, (4800), 15 states have call predecessors, (4800), 19 states have return successors, (5413), 4799 states have call predecessors, (5413), 4799 states have call successors, (5413) [2024-10-24 00:43:44,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28807 states to 28807 states and 49131 transitions. [2024-10-24 00:43:44,106 INFO L78 Accepts]: Start accepts. Automaton has 28807 states and 49131 transitions. Word has length 114 [2024-10-24 00:43:44,106 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 00:43:44,106 INFO L471 AbstractCegarLoop]: Abstraction has 28807 states and 49131 transitions. [2024-10-24 00:43:44,107 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.285714285714286) internal successors, (72), 3 states have internal predecessors, (72), 2 states have call successors, (14), 6 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-10-24 00:43:44,107 INFO L276 IsEmpty]: Start isEmpty. Operand 28807 states and 49131 transitions. [2024-10-24 00:43:44,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2024-10-24 00:43:44,136 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 00:43:44,136 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] [2024-10-24 00:43:44,137 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-10-24 00:43:44,137 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 00:43:44,137 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 00:43:44,137 INFO L85 PathProgramCache]: Analyzing trace with hash 1306552260, now seen corresponding path program 1 times [2024-10-24 00:43:44,137 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 00:43:44,137 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1869542659] [2024-10-24 00:43:44,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 00:43:44,138 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 00:43:44,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:43:44,193 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 00:43:44,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:43:44,202 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 00:43:44,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:43:44,205 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 00:43:44,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:43:44,209 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-24 00:43:44,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:43:44,211 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-24 00:43:44,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:43:44,213 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-24 00:43:44,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:43:44,221 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-10-24 00:43:44,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:43:44,229 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-24 00:43:44,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:43:44,230 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-24 00:43:44,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:43:44,232 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-10-24 00:43:44,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:43:44,233 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-10-24 00:43:44,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:43:44,234 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-10-24 00:43:44,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:43:44,235 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 00:43:44,235 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 00:43:44,235 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1869542659] [2024-10-24 00:43:44,235 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1869542659] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 00:43:44,236 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 00:43:44,236 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 00:43:44,236 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [39990936] [2024-10-24 00:43:44,236 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 00:43:44,237 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 00:43:44,237 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 00:43:44,238 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 00:43:44,238 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 00:43:44,239 INFO L87 Difference]: Start difference. First operand 28807 states and 49131 transitions. Second operand has 7 states, 7 states have (on average 10.428571428571429) internal successors, (73), 3 states have internal predecessors, (73), 2 states have call successors, (14), 6 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-10-24 00:43:46,956 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 00:43:46,956 INFO L93 Difference]: Finished difference Result 78600 states and 136250 transitions. [2024-10-24 00:43:46,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-24 00:43:46,957 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.428571428571429) internal successors, (73), 3 states have internal predecessors, (73), 2 states have call successors, (14), 6 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 115 [2024-10-24 00:43:46,957 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 00:43:47,255 INFO L225 Difference]: With dead ends: 78600 [2024-10-24 00:43:47,256 INFO L226 Difference]: Without dead ends: 52821 [2024-10-24 00:43:47,356 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-10-24 00:43:47,357 INFO L432 NwaCegarLoop]: 164 mSDtfsCounter, 733 mSDsluCounter, 573 mSDsCounter, 0 mSdLazyCounter, 1044 mSolverCounterSat, 304 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 749 SdHoareTripleChecker+Valid, 737 SdHoareTripleChecker+Invalid, 1348 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 304 IncrementalHoareTripleChecker+Valid, 1044 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-10-24 00:43:47,358 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [749 Valid, 737 Invalid, 1348 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [304 Valid, 1044 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-10-24 00:43:47,404 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52821 states. [2024-10-24 00:43:49,773 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52821 to 52695. [2024-10-24 00:43:49,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52695 states, 44160 states have (on average 1.617481884057971) internal successors, (71428), 44165 states have internal predecessors, (71428), 8515 states have call successors, (8515), 15 states have call predecessors, (8515), 19 states have return successors, (9660), 8514 states have call predecessors, (9660), 8514 states have call successors, (9660) [2024-10-24 00:43:50,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52695 states to 52695 states and 89603 transitions. [2024-10-24 00:43:50,329 INFO L78 Accepts]: Start accepts. Automaton has 52695 states and 89603 transitions. Word has length 115 [2024-10-24 00:43:50,330 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 00:43:50,330 INFO L471 AbstractCegarLoop]: Abstraction has 52695 states and 89603 transitions. [2024-10-24 00:43:50,331 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.428571428571429) internal successors, (73), 3 states have internal predecessors, (73), 2 states have call successors, (14), 6 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-10-24 00:43:50,331 INFO L276 IsEmpty]: Start isEmpty. Operand 52695 states and 89603 transitions. [2024-10-24 00:43:50,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2024-10-24 00:43:50,360 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 00:43:50,360 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] [2024-10-24 00:43:50,360 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-10-24 00:43:50,360 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 00:43:50,361 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 00:43:50,361 INFO L85 PathProgramCache]: Analyzing trace with hash 811312570, now seen corresponding path program 1 times [2024-10-24 00:43:50,361 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 00:43:50,361 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1251258921] [2024-10-24 00:43:50,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 00:43:50,361 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 00:43:50,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:43:50,415 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 00:43:50,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:43:50,426 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 00:43:50,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:43:50,433 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 00:43:50,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:43:50,436 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-24 00:43:50,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:43:50,438 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-24 00:43:50,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:43:50,440 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-24 00:43:50,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:43:50,448 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-10-24 00:43:50,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:43:50,458 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-10-24 00:43:50,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:43:50,460 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-10-24 00:43:50,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:43:50,464 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-10-24 00:43:50,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:43:50,465 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-24 00:43:50,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:43:50,466 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-24 00:43:50,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:43:50,468 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 00:43:50,468 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 00:43:50,468 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1251258921] [2024-10-24 00:43:50,468 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1251258921] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 00:43:50,468 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 00:43:50,468 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 00:43:50,468 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [512718386] [2024-10-24 00:43:50,468 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 00:43:50,469 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 00:43:50,469 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 00:43:50,469 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 00:43:50,469 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 00:43:50,470 INFO L87 Difference]: Start difference. First operand 52695 states and 89603 transitions. Second operand has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 3 states have internal predecessors, (74), 2 states have call successors, (14), 6 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-10-24 00:43:53,559 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 00:43:53,559 INFO L93 Difference]: Finished difference Result 98375 states and 170955 transitions. [2024-10-24 00:43:53,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-24 00:43:53,560 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 3 states have internal predecessors, (74), 2 states have call successors, (14), 6 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 116 [2024-10-24 00:43:53,561 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 00:43:54,023 INFO L225 Difference]: With dead ends: 98375 [2024-10-24 00:43:54,024 INFO L226 Difference]: Without dead ends: 98293 [2024-10-24 00:43:54,079 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-10-24 00:43:54,080 INFO L432 NwaCegarLoop]: 167 mSDtfsCounter, 726 mSDsluCounter, 580 mSDsCounter, 0 mSdLazyCounter, 1057 mSolverCounterSat, 295 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 740 SdHoareTripleChecker+Valid, 747 SdHoareTripleChecker+Invalid, 1352 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 295 IncrementalHoareTripleChecker+Valid, 1057 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-10-24 00:43:54,081 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [740 Valid, 747 Invalid, 1352 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [295 Valid, 1057 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-10-24 00:43:54,164 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98293 states. [2024-10-24 00:43:57,709 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98293 to 98167. [2024-10-24 00:43:57,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 98167 states, 82833 states have (on average 1.611157388963336) internal successors, (133457), 82838 states have internal predecessors, (133457), 15314 states have call successors, (15314), 15 states have call predecessors, (15314), 19 states have return successors, (17505), 15313 states have call predecessors, (17505), 15313 states have call successors, (17505) [2024-10-24 00:43:58,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98167 states to 98167 states and 166276 transitions. [2024-10-24 00:43:58,113 INFO L78 Accepts]: Start accepts. Automaton has 98167 states and 166276 transitions. Word has length 116 [2024-10-24 00:43:58,114 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 00:43:58,114 INFO L471 AbstractCegarLoop]: Abstraction has 98167 states and 166276 transitions. [2024-10-24 00:43:58,114 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 3 states have internal predecessors, (74), 2 states have call successors, (14), 6 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-10-24 00:43:58,114 INFO L276 IsEmpty]: Start isEmpty. Operand 98167 states and 166276 transitions. [2024-10-24 00:43:58,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2024-10-24 00:43:58,145 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 00:43:58,146 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] [2024-10-24 00:43:58,146 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-10-24 00:43:58,146 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 00:43:58,146 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 00:43:58,146 INFO L85 PathProgramCache]: Analyzing trace with hash -1721260413, now seen corresponding path program 1 times [2024-10-24 00:43:58,147 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 00:43:58,147 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2131356980] [2024-10-24 00:43:58,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 00:43:58,147 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 00:43:58,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:43:58,959 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 00:43:58,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:43:58,974 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 00:43:58,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:43:58,976 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 00:43:58,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:43:59,011 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-24 00:43:59,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:43:59,014 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-24 00:43:59,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:43:59,017 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-24 00:43:59,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:43:59,040 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-10-24 00:43:59,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:43:59,056 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-10-24 00:43:59,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:43:59,137 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-24 00:43:59,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:43:59,141 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-24 00:43:59,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:43:59,177 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-10-24 00:43:59,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:43:59,179 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-10-24 00:43:59,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:43:59,180 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 3 proven. 7 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-10-24 00:43:59,181 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 00:43:59,181 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2131356980] [2024-10-24 00:43:59,181 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2131356980] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 00:43:59,181 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1344434440] [2024-10-24 00:43:59,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 00:43:59,181 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 00:43:59,181 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 00:43:59,183 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 00:43:59,184 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 00:43:59,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:43:59,451 INFO L255 TraceCheckSpWp]: Trace formula consists of 943 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-10-24 00:43:59,456 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 00:43:59,697 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 00:43:59,697 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 00:43:59,698 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1344434440] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 00:43:59,698 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-24 00:43:59,698 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [18] total 27 [2024-10-24 00:43:59,698 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2039593742] [2024-10-24 00:43:59,698 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 00:43:59,701 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-10-24 00:43:59,701 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 00:43:59,702 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-10-24 00:43:59,702 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=639, Unknown=0, NotChecked=0, Total=702 [2024-10-24 00:43:59,702 INFO L87 Difference]: Start difference. First operand 98167 states and 166276 transitions. Second operand has 11 states, 10 states have (on average 8.5) internal successors, (85), 9 states have internal predecessors, (85), 5 states have call successors, (14), 5 states have call predecessors, (14), 6 states have return successors, (12), 6 states have call predecessors, (12), 5 states have call successors, (12) [2024-10-24 00:44:02,238 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 00:44:02,238 INFO L93 Difference]: Finished difference Result 98351 states and 166524 transitions. [2024-10-24 00:44:02,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-24 00:44:02,239 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 8.5) internal successors, (85), 9 states have internal predecessors, (85), 5 states have call successors, (14), 5 states have call predecessors, (14), 6 states have return successors, (12), 6 states have call predecessors, (12), 5 states have call successors, (12) Word has length 117 [2024-10-24 00:44:02,239 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 00:44:02,697 INFO L225 Difference]: With dead ends: 98351 [2024-10-24 00:44:02,697 INFO L226 Difference]: Without dead ends: 98274 [2024-10-24 00:44:02,757 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 165 GetRequests, 129 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 133 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=160, Invalid=1246, Unknown=0, NotChecked=0, Total=1406 [2024-10-24 00:44:02,758 INFO L432 NwaCegarLoop]: 358 mSDtfsCounter, 443 mSDsluCounter, 2751 mSDsCounter, 0 mSdLazyCounter, 474 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 447 SdHoareTripleChecker+Valid, 3109 SdHoareTripleChecker+Invalid, 530 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 474 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-24 00:44:02,759 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [447 Valid, 3109 Invalid, 530 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 474 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-24 00:44:02,850 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98274 states. [2024-10-24 00:44:05,926 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98274 to 98258. [2024-10-24 00:44:06,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 98258 states, 82900 states have (on average 1.6109891435464414) internal successors, (133551), 82905 states have internal predecessors, (133551), 15327 states have call successors, (15327), 24 states have call predecessors, (15327), 30 states have return successors, (17522), 15328 states have call predecessors, (17522), 15325 states have call successors, (17522) [2024-10-24 00:44:06,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98258 states to 98258 states and 166400 transitions. [2024-10-24 00:44:06,311 INFO L78 Accepts]: Start accepts. Automaton has 98258 states and 166400 transitions. Word has length 117 [2024-10-24 00:44:06,312 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 00:44:06,312 INFO L471 AbstractCegarLoop]: Abstraction has 98258 states and 166400 transitions. [2024-10-24 00:44:06,312 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 8.5) internal successors, (85), 9 states have internal predecessors, (85), 5 states have call successors, (14), 5 states have call predecessors, (14), 6 states have return successors, (12), 6 states have call predecessors, (12), 5 states have call successors, (12) [2024-10-24 00:44:06,312 INFO L276 IsEmpty]: Start isEmpty. Operand 98258 states and 166400 transitions. [2024-10-24 00:44:06,338 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2024-10-24 00:44:06,338 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 00:44:06,338 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 00:44:06,357 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 00:44:06,539 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 00:44:06,539 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 00:44:06,540 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 00:44:06,540 INFO L85 PathProgramCache]: Analyzing trace with hash 1466214566, now seen corresponding path program 1 times [2024-10-24 00:44:06,540 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 00:44:06,540 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [596464702] [2024-10-24 00:44:06,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 00:44:06,540 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 00:44:06,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:44:07,366 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 00:44:07,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:44:07,381 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 00:44:07,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:44:07,385 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 00:44:07,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:44:07,415 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-24 00:44:07,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:44:07,422 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-24 00:44:07,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:44:07,427 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-24 00:44:07,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:44:07,452 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-10-24 00:44:07,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:44:07,475 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-10-24 00:44:07,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:44:07,525 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-24 00:44:07,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:44:07,529 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-24 00:44:07,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:44:07,559 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-10-24 00:44:07,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:44:07,561 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-10-24 00:44:07,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:44:07,563 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 3 proven. 7 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-10-24 00:44:07,563 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 00:44:07,563 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [596464702] [2024-10-24 00:44:07,563 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [596464702] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 00:44:07,564 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1299107371] [2024-10-24 00:44:07,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 00:44:07,564 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 00:44:07,564 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 00:44:07,566 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-24 00:44:07,568 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-10-24 00:44:07,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:44:07,823 INFO L255 TraceCheckSpWp]: Trace formula consists of 944 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-10-24 00:44:07,828 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 00:44:08,103 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 00:44:08,103 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 00:44:08,103 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1299107371] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 00:44:08,104 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-24 00:44:08,104 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [19] total 29 [2024-10-24 00:44:08,104 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [142731401] [2024-10-24 00:44:08,104 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 00:44:08,104 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-10-24 00:44:08,104 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 00:44:08,105 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-10-24 00:44:08,105 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=744, Unknown=0, NotChecked=0, Total=812 [2024-10-24 00:44:08,106 INFO L87 Difference]: Start difference. First operand 98258 states and 166400 transitions. Second operand has 12 states, 11 states have (on average 7.818181818181818) internal successors, (86), 10 states have internal predecessors, (86), 5 states have call successors, (14), 5 states have call predecessors, (14), 6 states have return successors, (12), 6 states have call predecessors, (12), 5 states have call successors, (12) [2024-10-24 00:44:10,377 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 00:44:10,378 INFO L93 Difference]: Finished difference Result 98447 states and 166671 transitions. [2024-10-24 00:44:10,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-10-24 00:44:10,379 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 7.818181818181818) internal successors, (86), 10 states have internal predecessors, (86), 5 states have call successors, (14), 5 states have call predecessors, (14), 6 states have return successors, (12), 6 states have call predecessors, (12), 5 states have call successors, (12) Word has length 118 [2024-10-24 00:44:10,379 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 00:44:10,718 INFO L225 Difference]: With dead ends: 98447 [2024-10-24 00:44:10,719 INFO L226 Difference]: Without dead ends: 98293 [2024-10-24 00:44:10,768 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 170 GetRequests, 129 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 201 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=196, Invalid=1610, Unknown=0, NotChecked=0, Total=1806 [2024-10-24 00:44:10,769 INFO L432 NwaCegarLoop]: 360 mSDtfsCounter, 489 mSDsluCounter, 3127 mSDsCounter, 0 mSdLazyCounter, 602 mSolverCounterSat, 76 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 493 SdHoareTripleChecker+Valid, 3487 SdHoareTripleChecker+Invalid, 678 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 76 IncrementalHoareTripleChecker+Valid, 602 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-24 00:44:10,769 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [493 Valid, 3487 Invalid, 678 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [76 Valid, 602 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-24 00:44:10,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98293 states. [2024-10-24 00:44:14,464 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98293 to 98273. [2024-10-24 00:44:14,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 98273 states, 82911 states have (on average 1.6109442655377453) internal successors, (133565), 82915 states have internal predecessors, (133565), 15331 states have call successors, (15331), 24 states have call predecessors, (15331), 30 states have return successors, (17527), 15333 states have call predecessors, (17527), 15329 states have call successors, (17527) [2024-10-24 00:44:14,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98273 states to 98273 states and 166423 transitions. [2024-10-24 00:44:14,843 INFO L78 Accepts]: Start accepts. Automaton has 98273 states and 166423 transitions. Word has length 118 [2024-10-24 00:44:14,843 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 00:44:14,843 INFO L471 AbstractCegarLoop]: Abstraction has 98273 states and 166423 transitions. [2024-10-24 00:44:14,843 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 7.818181818181818) internal successors, (86), 10 states have internal predecessors, (86), 5 states have call successors, (14), 5 states have call predecessors, (14), 6 states have return successors, (12), 6 states have call predecessors, (12), 5 states have call successors, (12) [2024-10-24 00:44:14,844 INFO L276 IsEmpty]: Start isEmpty. Operand 98273 states and 166423 transitions. [2024-10-24 00:44:14,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2024-10-24 00:44:14,874 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 00:44:14,874 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] [2024-10-24 00:44:14,893 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2024-10-24 00:44:15,074 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2024-10-24 00:44:15,075 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 00:44:15,075 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 00:44:15,075 INFO L85 PathProgramCache]: Analyzing trace with hash -1816707506, now seen corresponding path program 1 times [2024-10-24 00:44:15,076 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 00:44:15,076 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [216938272] [2024-10-24 00:44:15,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 00:44:15,076 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 00:44:15,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:44:15,220 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 00:44:15,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:44:15,233 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 00:44:15,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:44:15,235 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 00:44:15,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:44:15,237 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-24 00:44:15,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:44:15,239 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-24 00:44:15,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:44:15,241 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-24 00:44:15,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:44:15,252 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-10-24 00:44:15,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:44:15,265 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-10-24 00:44:15,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:44:15,268 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-24 00:44:15,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:44:15,270 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-24 00:44:15,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:44:15,296 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-10-24 00:44:15,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:44:15,298 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-10-24 00:44:15,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:44:15,300 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 00:44:15,300 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 00:44:15,301 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [216938272] [2024-10-24 00:44:15,301 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [216938272] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 00:44:15,301 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 00:44:15,301 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-10-24 00:44:15,301 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [631847871] [2024-10-24 00:44:15,301 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 00:44:15,301 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-10-24 00:44:15,302 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 00:44:15,302 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-10-24 00:44:15,302 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=133, Unknown=0, NotChecked=0, Total=156 [2024-10-24 00:44:15,302 INFO L87 Difference]: Start difference. First operand 98273 states and 166423 transitions. Second operand has 13 states, 11 states have (on average 6.909090909090909) internal successors, (76), 8 states have internal predecessors, (76), 6 states have call successors, (14), 6 states have call predecessors, (14), 2 states have return successors, (12), 4 states have call predecessors, (12), 5 states have call successors, (12)