./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_product11.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_product11.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 0a22b5b7c3f7f6e8ff7182918ba517a92e8c6204e4a486ab05fe09fb2404c376 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4a390ef-m [2024-10-24 00:41:45,042 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-24 00:41:45,123 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-24 00:41:45,128 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-24 00:41:45,128 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-24 00:41:45,178 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-24 00:41:45,178 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-24 00:41:45,179 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-24 00:41:45,180 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-24 00:41:45,181 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-24 00:41:45,181 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-24 00:41:45,182 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-24 00:41:45,182 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-24 00:41:45,182 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-24 00:41:45,183 INFO L153 SettingsManager]: * Use SBE=true [2024-10-24 00:41:45,183 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-24 00:41:45,184 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-24 00:41:45,184 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-24 00:41:45,184 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-24 00:41:45,185 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-24 00:41:45,185 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-24 00:41:45,186 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-24 00:41:45,186 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-24 00:41:45,186 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-24 00:41:45,187 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-24 00:41:45,187 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-24 00:41:45,187 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-24 00:41:45,188 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-24 00:41:45,188 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-24 00:41:45,188 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-24 00:41:45,189 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-24 00:41:45,189 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-24 00:41:45,189 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 00:41:45,190 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-24 00:41:45,190 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-24 00:41:45,190 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-24 00:41:45,191 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-24 00:41:45,191 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-24 00:41:45,191 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-24 00:41:45,192 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-24 00:41:45,192 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-24 00:41:45,196 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-24 00:41:45,196 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0a22b5b7c3f7f6e8ff7182918ba517a92e8c6204e4a486ab05fe09fb2404c376 [2024-10-24 00:41:45,443 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-24 00:41:45,469 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-24 00:41:45,471 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-24 00:41:45,474 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-24 00:41:45,475 INFO L274 PluginConnector]: CDTParser initialized [2024-10-24 00:41:45,476 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/email_spec0_product11.cil.c [2024-10-24 00:41:46,956 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-24 00:41:47,237 INFO L384 CDTParser]: Found 1 translation units. [2024-10-24 00:41:47,239 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/email_spec0_product11.cil.c [2024-10-24 00:41:47,262 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e761cdd1b/ee289d1d408445c7957f706db8f846c4/FLAGa40cacc50 [2024-10-24 00:41:47,277 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e761cdd1b/ee289d1d408445c7957f706db8f846c4 [2024-10-24 00:41:47,279 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-24 00:41:47,281 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-24 00:41:47,282 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-24 00:41:47,283 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-24 00:41:47,288 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-24 00:41:47,289 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 12:41:47" (1/1) ... [2024-10-24 00:41:47,289 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2b034364 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:41:47, skipping insertion in model container [2024-10-24 00:41:47,290 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 12:41:47" (1/1) ... [2024-10-24 00:41:47,352 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-24 00:41:47,878 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_product11.cil.c[59717,59730] [2024-10-24 00:41:47,895 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 00:41:47,913 INFO L200 MainTranslator]: Completed pre-run [2024-10-24 00:41:47,942 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"EmailLib.i","") [48] [2024-10-24 00:41:47,944 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [460] [2024-10-24 00:41:47,944 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Email.i","") [509] [2024-10-24 00:41:47,944 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [576] [2024-10-24 00:41:47,944 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"DecryptForward_spec.i","") [876] [2024-10-24 00:41:47,945 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [896] [2024-10-24 00:41:47,945 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [1262] [2024-10-24 00:41:47,945 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Client.i","") [1478] [2024-10-24 00:41:47,945 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"ClientLib.i","") [1671] [2024-10-24 00:41:47,950 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [2740] [2024-10-24 00:41:47,950 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Util.i","") [2749] [2024-10-24 00:41:48,051 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_product11.cil.c[59717,59730] [2024-10-24 00:41:48,056 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 00:41:48,084 INFO L204 MainTranslator]: Completed translation [2024-10-24 00:41:48,085 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:41:48 WrapperNode [2024-10-24 00:41:48,085 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-24 00:41:48,086 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-24 00:41:48,086 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-24 00:41:48,086 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-24 00:41:48,091 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:41:48" (1/1) ... [2024-10-24 00:41:48,115 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:41:48" (1/1) ... [2024-10-24 00:41:48,156 INFO L138 Inliner]: procedures = 121, calls = 162, calls flagged for inlining = 48, calls inlined = 43, statements flattened = 799 [2024-10-24 00:41:48,157 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-24 00:41:48,158 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-24 00:41:48,158 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-24 00:41:48,158 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-24 00:41:48,168 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:41:48" (1/1) ... [2024-10-24 00:41:48,169 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:41:48" (1/1) ... [2024-10-24 00:41:48,173 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:41:48" (1/1) ... [2024-10-24 00:41:48,207 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 00:41:48,208 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:41:48" (1/1) ... [2024-10-24 00:41:48,208 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:41:48" (1/1) ... [2024-10-24 00:41:48,227 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:41:48" (1/1) ... [2024-10-24 00:41:48,235 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:41:48" (1/1) ... [2024-10-24 00:41:48,238 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:41:48" (1/1) ... [2024-10-24 00:41:48,245 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:41:48" (1/1) ... [2024-10-24 00:41:48,259 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-24 00:41:48,260 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-24 00:41:48,260 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-24 00:41:48,260 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-24 00:41:48,265 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:41:48" (1/1) ... [2024-10-24 00:41:48,275 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 00:41:48,298 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 00:41:48,312 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 00:41:48,314 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 00:41:48,352 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2024-10-24 00:41:48,352 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2024-10-24 00:41:48,352 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2024-10-24 00:41:48,352 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2024-10-24 00:41:48,352 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2024-10-24 00:41:48,352 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2024-10-24 00:41:48,352 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2024-10-24 00:41:48,353 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2024-10-24 00:41:48,353 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2024-10-24 00:41:48,353 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2024-10-24 00:41:48,354 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2024-10-24 00:41:48,354 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2024-10-24 00:41:48,354 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-24 00:41:48,354 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2024-10-24 00:41:48,354 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2024-10-24 00:41:48,354 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2024-10-24 00:41:48,354 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2024-10-24 00:41:48,354 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2024-10-24 00:41:48,355 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2024-10-24 00:41:48,355 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2024-10-24 00:41:48,355 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2024-10-24 00:41:48,355 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2024-10-24 00:41:48,355 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2024-10-24 00:41:48,355 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2024-10-24 00:41:48,355 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2024-10-24 00:41:48,355 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-24 00:41:48,355 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-10-24 00:41:48,355 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-10-24 00:41:48,355 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-10-24 00:41:48,356 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2024-10-24 00:41:48,356 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2024-10-24 00:41:48,356 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-24 00:41:48,356 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-24 00:41:48,527 INFO L238 CfgBuilder]: Building ICFG [2024-10-24 00:41:48,529 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-24 00:41:49,172 INFO L? ?]: Removed 304 outVars from TransFormulas that were not future-live. [2024-10-24 00:41:49,172 INFO L287 CfgBuilder]: Performing block encoding [2024-10-24 00:41:49,236 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-24 00:41:49,237 INFO L314 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-24 00:41:49,238 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 12:41:49 BoogieIcfgContainer [2024-10-24 00:41:49,238 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-24 00:41:49,240 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-24 00:41:49,240 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-24 00:41:49,243 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-24 00:41:49,244 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 12:41:47" (1/3) ... [2024-10-24 00:41:49,245 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e8f9558 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 12:41:49, skipping insertion in model container [2024-10-24 00:41:49,245 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:41:48" (2/3) ... [2024-10-24 00:41:49,245 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e8f9558 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 12:41:49, skipping insertion in model container [2024-10-24 00:41:49,245 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 12:41:49" (3/3) ... [2024-10-24 00:41:49,250 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec0_product11.cil.c [2024-10-24 00:41:49,267 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-24 00:41:49,267 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-24 00:41:49,341 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-24 00:41:49,347 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;@2e6ede11, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-24 00:41:49,348 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-24 00:41:49,353 INFO L276 IsEmpty]: Start isEmpty. Operand has 211 states, 161 states have (on average 1.608695652173913) internal successors, (259), 163 states have internal predecessors, (259), 35 states have call successors, (35), 13 states have call predecessors, (35), 13 states have return successors, (35), 35 states have call predecessors, (35), 35 states have call successors, (35) [2024-10-24 00:41:49,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-10-24 00:41:49,368 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 00:41:49,368 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] [2024-10-24 00:41:49,369 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 00:41:49,374 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 00:41:49,374 INFO L85 PathProgramCache]: Analyzing trace with hash 683107094, now seen corresponding path program 1 times [2024-10-24 00:41:49,382 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 00:41:49,383 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2086510647] [2024-10-24 00:41:49,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 00:41:49,384 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 00:41:49,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:41:49,965 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 00:41:49,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:41:49,982 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 00:41:49,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:41:49,988 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 00:41:49,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:41:50,029 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 00:41:50,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:41:50,034 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-24 00:41:50,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:41:50,040 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 00:41:50,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:41:50,060 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-10-24 00:41:50,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:41:50,077 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-10-24 00:41:50,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:41:50,081 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-24 00:41:50,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:41:50,088 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-10-24 00:41:50,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:41:50,098 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-10-24 00:41:50,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:41:50,102 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-10-24 00:41:50,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:41:50,107 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 00:41:50,108 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 00:41:50,108 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2086510647] [2024-10-24 00:41:50,108 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2086510647] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 00:41:50,108 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1722966335] [2024-10-24 00:41:50,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 00:41:50,125 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 00:41:50,126 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 00:41:50,129 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 00:41:50,131 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 00:41:50,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:41:50,428 INFO L255 TraceCheckSpWp]: Trace formula consists of 848 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-10-24 00:41:50,437 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 00:41:50,459 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 00:41:50,459 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 00:41:50,460 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1722966335] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 00:41:50,460 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-24 00:41:50,460 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [9] total 9 [2024-10-24 00:41:50,462 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2088539415] [2024-10-24 00:41:50,464 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 00:41:50,468 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-24 00:41:50,468 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 00:41:50,494 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-24 00:41:50,495 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-10-24 00:41:50,498 INFO L87 Difference]: Start difference. First operand has 211 states, 161 states have (on average 1.608695652173913) internal successors, (259), 163 states have internal predecessors, (259), 35 states have call successors, (35), 13 states have call predecessors, (35), 13 states have return successors, (35), 35 states have call predecessors, (35), 35 states have call successors, (35) Second operand has 2 states, 2 states have (on average 20.0) internal successors, (40), 2 states have internal predecessors, (40), 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 00:41:50,567 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 00:41:50,568 INFO L93 Difference]: Finished difference Result 277 states and 421 transitions. [2024-10-24 00:41:50,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-24 00:41:50,570 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 20.0) internal successors, (40), 2 states have internal predecessors, (40), 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 84 [2024-10-24 00:41:50,571 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 00:41:50,581 INFO L225 Difference]: With dead ends: 277 [2024-10-24 00:41:50,581 INFO L226 Difference]: Without dead ends: 208 [2024-10-24 00:41:50,585 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 104 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 00:41:50,588 INFO L432 NwaCegarLoop]: 312 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 312 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-24 00:41:50,588 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 312 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 00:41:50,605 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 208 states. [2024-10-24 00:41:50,646 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 208 to 208. [2024-10-24 00:41:50,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 208 states, 159 states have (on average 1.5849056603773586) internal successors, (252), 160 states have internal predecessors, (252), 35 states have call successors, (35), 13 states have call predecessors, (35), 13 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2024-10-24 00:41:50,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 208 states to 208 states and 321 transitions. [2024-10-24 00:41:50,660 INFO L78 Accepts]: Start accepts. Automaton has 208 states and 321 transitions. Word has length 84 [2024-10-24 00:41:50,662 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 00:41:50,662 INFO L471 AbstractCegarLoop]: Abstraction has 208 states and 321 transitions. [2024-10-24 00:41:50,662 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 20.0) internal successors, (40), 2 states have internal predecessors, (40), 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 00:41:50,664 INFO L276 IsEmpty]: Start isEmpty. Operand 208 states and 321 transitions. [2024-10-24 00:41:50,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2024-10-24 00:41:50,672 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 00:41:50,674 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] [2024-10-24 00:41:50,693 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-10-24 00:41:50,874 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 00:41:50,875 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 00:41:50,875 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 00:41:50,876 INFO L85 PathProgramCache]: Analyzing trace with hash -1938388787, now seen corresponding path program 1 times [2024-10-24 00:41:50,876 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 00:41:50,876 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1155246568] [2024-10-24 00:41:50,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 00:41:50,876 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 00:41:50,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:41:51,069 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 00:41:51,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:41:51,083 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 00:41:51,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:41:51,087 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 00:41:51,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:41:51,114 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 00:41:51,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:41:51,118 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-24 00:41:51,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:41:51,121 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 00:41:51,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:41:51,137 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-10-24 00:41:51,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:41:51,152 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-10-24 00:41:51,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:41:51,155 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-10-24 00:41:51,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:41:51,157 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-10-24 00:41:51,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:41:51,165 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-24 00:41:51,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:41:51,170 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-10-24 00:41:51,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:41:51,176 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 00:41:51,177 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 00:41:51,177 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1155246568] [2024-10-24 00:41:51,192 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1155246568] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 00:41:51,193 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [140913128] [2024-10-24 00:41:51,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 00:41:51,194 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 00:41:51,194 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 00:41:51,196 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 00:41:51,197 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 00:41:51,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:41:51,478 INFO L255 TraceCheckSpWp]: Trace formula consists of 849 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-24 00:41:51,484 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 00:41:51,520 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 00:41:51,520 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 00:41:51,520 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [140913128] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 00:41:51,521 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-24 00:41:51,521 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2024-10-24 00:41:51,521 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1546277633] [2024-10-24 00:41:51,521 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 00:41:51,522 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 00:41:51,522 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 00:41:51,523 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 00:41:51,523 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-10-24 00:41:51,523 INFO L87 Difference]: Start difference. First operand 208 states and 321 transitions. Second operand has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 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 00:41:51,598 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 00:41:51,599 INFO L93 Difference]: Finished difference Result 273 states and 408 transitions. [2024-10-24 00:41:51,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 00:41:51,599 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 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 85 [2024-10-24 00:41:51,600 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 00:41:51,603 INFO L225 Difference]: With dead ends: 273 [2024-10-24 00:41:51,603 INFO L226 Difference]: Without dead ends: 210 [2024-10-24 00:41:51,604 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 104 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 00:41:51,605 INFO L432 NwaCegarLoop]: 309 mSDtfsCounter, 0 mSDsluCounter, 308 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 617 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-24 00:41:51,606 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 617 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 00:41:51,607 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 210 states. [2024-10-24 00:41:51,627 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 210 to 210. [2024-10-24 00:41:51,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 210 states, 161 states have (on average 1.5776397515527951) internal successors, (254), 162 states have internal predecessors, (254), 35 states have call successors, (35), 13 states have call predecessors, (35), 13 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2024-10-24 00:41:51,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 210 states to 210 states and 323 transitions. [2024-10-24 00:41:51,631 INFO L78 Accepts]: Start accepts. Automaton has 210 states and 323 transitions. Word has length 85 [2024-10-24 00:41:51,631 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 00:41:51,631 INFO L471 AbstractCegarLoop]: Abstraction has 210 states and 323 transitions. [2024-10-24 00:41:51,632 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 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 00:41:51,632 INFO L276 IsEmpty]: Start isEmpty. Operand 210 states and 323 transitions. [2024-10-24 00:41:51,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-10-24 00:41:51,639 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 00:41:51,639 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] [2024-10-24 00:41:51,656 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 00:41:51,840 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 00:41:51,840 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 00:41:51,841 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 00:41:51,841 INFO L85 PathProgramCache]: Analyzing trace with hash 1618477745, now seen corresponding path program 1 times [2024-10-24 00:41:51,841 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 00:41:51,841 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2107183877] [2024-10-24 00:41:51,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 00:41:51,842 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 00:41:51,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:41:52,011 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 00:41:52,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:41:52,023 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 00:41:52,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:41:52,027 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 00:41:52,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:41:52,049 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 00:41:52,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:41:52,053 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-24 00:41:52,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:41:52,057 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 00:41:52,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:41:52,070 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-10-24 00:41:52,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:41:52,085 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-10-24 00:41:52,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:41:52,088 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-10-24 00:41:52,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:41:52,091 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-10-24 00:41:52,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:41:52,093 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-10-24 00:41:52,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:41:52,096 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-24 00:41:52,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:41:52,098 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 00:41:52,098 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 00:41:52,098 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2107183877] [2024-10-24 00:41:52,098 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2107183877] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 00:41:52,099 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [198621212] [2024-10-24 00:41:52,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 00:41:52,099 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 00:41:52,099 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 00:41:52,103 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 00:41:52,106 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 00:41:52,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:41:52,342 INFO L255 TraceCheckSpWp]: Trace formula consists of 861 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-24 00:41:52,348 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 00:41:52,370 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 00:41:52,374 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 00:41:52,374 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [198621212] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 00:41:52,375 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-24 00:41:52,375 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2024-10-24 00:41:52,375 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1156794025] [2024-10-24 00:41:52,375 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 00:41:52,375 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 00:41:52,375 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 00:41:52,376 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 00:41:52,376 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-10-24 00:41:52,376 INFO L87 Difference]: Start difference. First operand 210 states and 323 transitions. Second operand has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-10-24 00:41:52,438 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 00:41:52,438 INFO L93 Difference]: Finished difference Result 450 states and 705 transitions. [2024-10-24 00:41:52,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 00:41:52,438 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 90 [2024-10-24 00:41:52,439 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 00:41:52,441 INFO L225 Difference]: With dead ends: 450 [2024-10-24 00:41:52,441 INFO L226 Difference]: Without dead ends: 262 [2024-10-24 00:41:52,443 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 117 GetRequests, 109 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 00:41:52,444 INFO L432 NwaCegarLoop]: 325 mSDtfsCounter, 102 mSDsluCounter, 265 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 117 SdHoareTripleChecker+Valid, 590 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-24 00:41:52,444 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [117 Valid, 590 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 00:41:52,445 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 262 states. [2024-10-24 00:41:52,459 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 262 to 257. [2024-10-24 00:41:52,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 257 states, 197 states have (on average 1.5939086294416243) internal successors, (314), 198 states have internal predecessors, (314), 46 states have call successors, (46), 13 states have call predecessors, (46), 13 states have return successors, (45), 45 states have call predecessors, (45), 45 states have call successors, (45) [2024-10-24 00:41:52,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 257 states to 257 states and 405 transitions. [2024-10-24 00:41:52,462 INFO L78 Accepts]: Start accepts. Automaton has 257 states and 405 transitions. Word has length 90 [2024-10-24 00:41:52,462 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 00:41:52,463 INFO L471 AbstractCegarLoop]: Abstraction has 257 states and 405 transitions. [2024-10-24 00:41:52,463 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-10-24 00:41:52,463 INFO L276 IsEmpty]: Start isEmpty. Operand 257 states and 405 transitions. [2024-10-24 00:41:52,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2024-10-24 00:41:52,469 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 00:41:52,469 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] [2024-10-24 00:41:52,487 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 00:41:52,669 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 00:41:52,670 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 00:41:52,670 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 00:41:52,670 INFO L85 PathProgramCache]: Analyzing trace with hash -268241886, now seen corresponding path program 1 times [2024-10-24 00:41:52,670 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 00:41:52,671 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [61457603] [2024-10-24 00:41:52,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 00:41:52,671 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 00:41:52,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:41:52,804 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 00:41:52,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:41:52,814 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 00:41:52,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:41:52,817 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 00:41:52,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:41:52,835 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 00:41:52,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:41:52,839 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-24 00:41:52,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:41:52,841 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 00:41:52,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:41:52,852 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-10-24 00:41:52,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:41:52,871 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-10-24 00:41:52,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:41:52,881 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-10-24 00:41:52,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:41:52,883 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-10-24 00:41:52,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:41:52,889 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-10-24 00:41:52,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:41:52,891 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-10-24 00:41:52,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:41:52,895 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 00:41:52,896 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 00:41:52,896 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [61457603] [2024-10-24 00:41:52,897 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [61457603] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 00:41:52,897 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [779811434] [2024-10-24 00:41:52,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 00:41:52,897 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 00:41:52,897 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 00:41:52,900 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 00:41:52,901 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 00:41:53,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:41:53,127 INFO L255 TraceCheckSpWp]: Trace formula consists of 866 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-10-24 00:41:53,132 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 00:41:53,214 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 00:41:53,214 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 00:41:53,215 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [779811434] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 00:41:53,215 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-24 00:41:53,215 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 12 [2024-10-24 00:41:53,215 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1782524460] [2024-10-24 00:41:53,215 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 00:41:53,216 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 00:41:53,216 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 00:41:53,216 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 00:41:53,216 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2024-10-24 00:41:53,216 INFO L87 Difference]: Start difference. First operand 257 states and 405 transitions. Second operand has 5 states, 4 states have (on average 13.75) internal successors, (55), 5 states have internal predecessors, (55), 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 00:41:53,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 00:41:53,315 INFO L93 Difference]: Finished difference Result 509 states and 804 transitions. [2024-10-24 00:41:53,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-24 00:41:53,315 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 13.75) internal successors, (55), 5 states have internal predecessors, (55), 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 91 [2024-10-24 00:41:53,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 00:41:53,319 INFO L225 Difference]: With dead ends: 509 [2024-10-24 00:41:53,320 INFO L226 Difference]: Without dead ends: 259 [2024-10-24 00:41:53,322 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 108 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 00:41:53,324 INFO L432 NwaCegarLoop]: 301 mSDtfsCounter, 2 mSDsluCounter, 892 mSDsCounter, 0 mSdLazyCounter, 85 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 1193 SdHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 85 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 00:41:53,325 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 1193 Invalid, 85 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 85 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 00:41:53,326 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 259 states. [2024-10-24 00:41:53,347 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 259 to 259. [2024-10-24 00:41:53,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 259 states, 198 states have (on average 1.5909090909090908) internal successors, (315), 200 states have internal predecessors, (315), 46 states have call successors, (46), 13 states have call predecessors, (46), 14 states have return successors, (47), 45 states have call predecessors, (47), 45 states have call successors, (47) [2024-10-24 00:41:53,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 259 states to 259 states and 408 transitions. [2024-10-24 00:41:53,355 INFO L78 Accepts]: Start accepts. Automaton has 259 states and 408 transitions. Word has length 91 [2024-10-24 00:41:53,356 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 00:41:53,356 INFO L471 AbstractCegarLoop]: Abstraction has 259 states and 408 transitions. [2024-10-24 00:41:53,356 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 13.75) internal successors, (55), 5 states have internal predecessors, (55), 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 00:41:53,356 INFO L276 IsEmpty]: Start isEmpty. Operand 259 states and 408 transitions. [2024-10-24 00:41:53,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2024-10-24 00:41:53,359 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 00:41:53,359 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] [2024-10-24 00:41:53,377 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-10-24 00:41:53,560 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 00:41:53,560 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 00:41:53,561 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 00:41:53,561 INFO L85 PathProgramCache]: Analyzing trace with hash -1208340617, now seen corresponding path program 1 times [2024-10-24 00:41:53,561 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 00:41:53,561 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [960398138] [2024-10-24 00:41:53,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 00:41:53,562 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 00:41:53,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:41:53,661 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 00:41:53,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:41:53,672 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 00:41:53,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:41:53,675 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 00:41:53,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:41:53,698 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-24 00:41:53,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:41:53,721 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-10-24 00:41:53,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:41:53,729 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-10-24 00:41:53,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:41:53,742 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-24 00:41:53,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:41:53,779 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-10-24 00:41:53,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:41:53,782 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-10-24 00:41:53,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:41:53,786 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-10-24 00:41:53,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:41:53,788 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-24 00:41:53,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:41:53,791 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-24 00:41:53,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:41:53,793 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 00:41:53,794 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 00:41:53,794 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [960398138] [2024-10-24 00:41:53,794 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [960398138] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 00:41:53,794 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [244730524] [2024-10-24 00:41:53,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 00:41:53,795 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 00:41:53,795 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 00:41:53,796 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 00:41:53,797 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 00:41:54,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:41:54,033 INFO L255 TraceCheckSpWp]: Trace formula consists of 867 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-10-24 00:41:54,036 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 00:41:54,097 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 00:41:54,097 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 00:41:54,097 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [244730524] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 00:41:54,098 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-24 00:41:54,098 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [12] total 15 [2024-10-24 00:41:54,098 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1582513248] [2024-10-24 00:41:54,098 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 00:41:54,098 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 00:41:54,098 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 00:41:54,099 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 00:41:54,099 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=180, Unknown=0, NotChecked=0, Total=210 [2024-10-24 00:41:54,099 INFO L87 Difference]: Start difference. First operand 259 states and 408 transitions. Second operand has 5 states, 5 states have (on average 11.4) internal successors, (57), 5 states have internal predecessors, (57), 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 00:41:54,194 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 00:41:54,196 INFO L93 Difference]: Finished difference Result 511 states and 809 transitions. [2024-10-24 00:41:54,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-24 00:41:54,197 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 5 states have internal predecessors, (57), 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 92 [2024-10-24 00:41:54,197 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 00:41:54,199 INFO L225 Difference]: With dead ends: 511 [2024-10-24 00:41:54,200 INFO L226 Difference]: Without dead ends: 261 [2024-10-24 00:41:54,202 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 108 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 00:41:54,202 INFO L432 NwaCegarLoop]: 299 mSDtfsCounter, 2 mSDsluCounter, 880 mSDsCounter, 0 mSdLazyCounter, 97 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 1179 SdHoareTripleChecker+Invalid, 97 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 97 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 00:41:54,205 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 1179 Invalid, 97 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 97 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 00:41:54,206 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 261 states. [2024-10-24 00:41:54,224 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 261 to 261. [2024-10-24 00:41:54,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 261 states, 199 states have (on average 1.5879396984924623) internal successors, (316), 202 states have internal predecessors, (316), 46 states have call successors, (46), 13 states have call predecessors, (46), 15 states have return successors, (52), 45 states have call predecessors, (52), 45 states have call successors, (52) [2024-10-24 00:41:54,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 261 states to 261 states and 414 transitions. [2024-10-24 00:41:54,228 INFO L78 Accepts]: Start accepts. Automaton has 261 states and 414 transitions. Word has length 92 [2024-10-24 00:41:54,229 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 00:41:54,229 INFO L471 AbstractCegarLoop]: Abstraction has 261 states and 414 transitions. [2024-10-24 00:41:54,229 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 5 states have internal predecessors, (57), 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 00:41:54,229 INFO L276 IsEmpty]: Start isEmpty. Operand 261 states and 414 transitions. [2024-10-24 00:41:54,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2024-10-24 00:41:54,231 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 00:41:54,231 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] [2024-10-24 00:41:54,249 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 00:41:54,431 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 00:41:54,432 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 00:41:54,432 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 00:41:54,432 INFO L85 PathProgramCache]: Analyzing trace with hash 63213040, now seen corresponding path program 1 times [2024-10-24 00:41:54,432 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 00:41:54,432 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [780579365] [2024-10-24 00:41:54,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 00:41:54,432 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 00:41:54,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:41:54,541 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 00:41:54,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:41:54,552 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 00:41:54,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:41:54,555 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 00:41:54,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:41:54,558 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-24 00:41:54,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:41:54,560 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-24 00:41:54,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:41:54,581 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-10-24 00:41:54,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:41:54,593 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-24 00:41:54,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:41:54,605 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-24 00:41:54,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:41:54,607 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-10-24 00:41:54,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:41:54,609 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-10-24 00:41:54,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:41:54,611 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-10-24 00:41:54,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:41:54,614 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-10-24 00:41:54,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:41:54,616 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 00:41:54,616 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 00:41:54,616 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [780579365] [2024-10-24 00:41:54,616 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [780579365] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 00:41:54,616 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 00:41:54,616 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-10-24 00:41:54,616 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1967752036] [2024-10-24 00:41:54,617 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 00:41:54,617 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-24 00:41:54,617 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 00:41:54,618 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-24 00:41:54,618 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-10-24 00:41:54,619 INFO L87 Difference]: Start difference. First operand 261 states and 414 transitions. Second operand has 9 states, 8 states have (on average 6.625) internal successors, (53), 5 states have internal predecessors, (53), 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 00:41:55,939 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 00:41:55,940 INFO L93 Difference]: Finished difference Result 592 states and 943 transitions. [2024-10-24 00:41:55,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-10-24 00:41:55,940 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 6.625) internal successors, (53), 5 states have internal predecessors, (53), 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 93 [2024-10-24 00:41:55,940 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 00:41:55,944 INFO L225 Difference]: With dead ends: 592 [2024-10-24 00:41:55,944 INFO L226 Difference]: Without dead ends: 350 [2024-10-24 00:41:55,945 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 00:41:55,946 INFO L432 NwaCegarLoop]: 160 mSDtfsCounter, 551 mSDsluCounter, 807 mSDsCounter, 0 mSdLazyCounter, 1528 mSolverCounterSat, 192 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 552 SdHoareTripleChecker+Valid, 967 SdHoareTripleChecker+Invalid, 1720 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 192 IncrementalHoareTripleChecker+Valid, 1528 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-10-24 00:41:55,946 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [552 Valid, 967 Invalid, 1720 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [192 Valid, 1528 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-10-24 00:41:55,947 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 350 states. [2024-10-24 00:41:55,985 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 350 to 261. [2024-10-24 00:41:55,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 261 states, 199 states have (on average 1.5879396984924623) internal successors, (316), 202 states have internal predecessors, (316), 46 states have call successors, (46), 13 states have call predecessors, (46), 15 states have return successors, (51), 45 states have call predecessors, (51), 45 states have call successors, (51) [2024-10-24 00:41:55,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 261 states to 261 states and 413 transitions. [2024-10-24 00:41:55,989 INFO L78 Accepts]: Start accepts. Automaton has 261 states and 413 transitions. Word has length 93 [2024-10-24 00:41:55,990 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 00:41:55,990 INFO L471 AbstractCegarLoop]: Abstraction has 261 states and 413 transitions. [2024-10-24 00:41:55,991 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 6.625) internal successors, (53), 5 states have internal predecessors, (53), 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 00:41:55,991 INFO L276 IsEmpty]: Start isEmpty. Operand 261 states and 413 transitions. [2024-10-24 00:41:55,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-10-24 00:41:55,993 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 00:41:55,993 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] [2024-10-24 00:41:55,993 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-24 00:41:55,994 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 00:41:55,994 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 00:41:55,995 INFO L85 PathProgramCache]: Analyzing trace with hash 285584163, now seen corresponding path program 2 times [2024-10-24 00:41:55,995 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 00:41:55,995 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [993487159] [2024-10-24 00:41:55,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 00:41:55,995 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 00:41:56,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:41:56,105 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 00:41:56,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:41:56,116 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 00:41:56,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:41:56,120 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 00:41:56,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:41:56,142 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-24 00:41:56,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:41:56,147 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-24 00:41:56,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:41:56,172 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-24 00:41:56,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:41:56,184 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-10-24 00:41:56,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:41:56,197 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-24 00:41:56,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:41:56,199 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-10-24 00:41:56,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:41:56,202 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-24 00:41:56,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:41:56,208 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-10-24 00:41:56,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:41:56,209 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-10-24 00:41:56,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:41:56,215 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 00:41:56,215 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 00:41:56,215 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [993487159] [2024-10-24 00:41:56,215 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [993487159] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 00:41:56,215 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 00:41:56,215 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-10-24 00:41:56,216 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [600675069] [2024-10-24 00:41:56,216 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 00:41:56,216 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-24 00:41:56,216 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 00:41:56,217 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-24 00:41:56,217 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-10-24 00:41:56,217 INFO L87 Difference]: Start difference. First operand 261 states and 413 transitions. Second operand has 9 states, 8 states have (on average 6.75) internal successors, (54), 5 states have internal predecessors, (54), 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 00:41:57,498 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 00:41:57,498 INFO L93 Difference]: Finished difference Result 594 states and 946 transitions. [2024-10-24 00:41:57,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-10-24 00:41:57,499 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 6.75) internal successors, (54), 5 states have internal predecessors, (54), 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 94 [2024-10-24 00:41:57,499 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 00:41:57,501 INFO L225 Difference]: With dead ends: 594 [2024-10-24 00:41:57,501 INFO L226 Difference]: Without dead ends: 352 [2024-10-24 00:41:57,504 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 00:41:57,505 INFO L432 NwaCegarLoop]: 161 mSDtfsCounter, 546 mSDsluCounter, 807 mSDsCounter, 0 mSdLazyCounter, 1556 mSolverCounterSat, 190 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 547 SdHoareTripleChecker+Valid, 968 SdHoareTripleChecker+Invalid, 1746 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 190 IncrementalHoareTripleChecker+Valid, 1556 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-10-24 00:41:57,505 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [547 Valid, 968 Invalid, 1746 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [190 Valid, 1556 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-10-24 00:41:57,507 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 352 states. [2024-10-24 00:41:57,561 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 352 to 263. [2024-10-24 00:41:57,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 263 states, 200 states have (on average 1.585) internal successors, (317), 204 states have internal predecessors, (317), 46 states have call successors, (46), 13 states have call predecessors, (46), 16 states have return successors, (53), 45 states have call predecessors, (53), 45 states have call successors, (53) [2024-10-24 00:41:57,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 263 states to 263 states and 416 transitions. [2024-10-24 00:41:57,565 INFO L78 Accepts]: Start accepts. Automaton has 263 states and 416 transitions. Word has length 94 [2024-10-24 00:41:57,565 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 00:41:57,565 INFO L471 AbstractCegarLoop]: Abstraction has 263 states and 416 transitions. [2024-10-24 00:41:57,565 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 6.75) internal successors, (54), 5 states have internal predecessors, (54), 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 00:41:57,566 INFO L276 IsEmpty]: Start isEmpty. Operand 263 states and 416 transitions. [2024-10-24 00:41:57,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-10-24 00:41:57,568 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 00:41:57,568 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] [2024-10-24 00:41:57,569 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-24 00:41:57,569 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 00:41:57,569 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 00:41:57,569 INFO L85 PathProgramCache]: Analyzing trace with hash 1840630165, now seen corresponding path program 1 times [2024-10-24 00:41:57,570 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 00:41:57,570 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [230871820] [2024-10-24 00:41:57,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 00:41:57,570 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 00:41:57,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:41:57,715 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 00:41:57,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:41:57,726 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 00:41:57,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:41:57,729 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 00:41:57,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:41:57,732 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-24 00:41:57,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:41:57,734 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-24 00:41:57,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:41:57,760 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-24 00:41:57,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:41:57,800 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-10-24 00:41:57,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:41:57,814 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-10-24 00:41:57,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:41:57,817 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 00:41:57,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:41:57,820 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-24 00:41:57,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:41:57,821 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-10-24 00:41:57,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:41:57,823 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-10-24 00:41:57,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:41:57,825 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 00:41:57,825 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 00:41:57,825 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [230871820] [2024-10-24 00:41:57,825 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [230871820] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 00:41:57,825 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 00:41:57,825 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-10-24 00:41:57,825 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2042581987] [2024-10-24 00:41:57,825 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 00:41:57,826 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-10-24 00:41:57,826 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 00:41:57,827 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-10-24 00:41:57,827 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2024-10-24 00:41:57,827 INFO L87 Difference]: Start difference. First operand 263 states and 416 transitions. Second operand has 12 states, 11 states have (on average 5.2727272727272725) internal successors, (58), 8 states have internal predecessors, (58), 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 00:41:59,547 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 00:41:59,547 INFO L93 Difference]: Finished difference Result 592 states and 941 transitions. [2024-10-24 00:41:59,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-24 00:41:59,548 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 5.2727272727272725) internal successors, (58), 8 states have internal predecessors, (58), 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 95 [2024-10-24 00:41:59,549 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 00:41:59,551 INFO L225 Difference]: With dead ends: 592 [2024-10-24 00:41:59,551 INFO L226 Difference]: Without dead ends: 352 [2024-10-24 00:41:59,553 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 00:41:59,555 INFO L432 NwaCegarLoop]: 158 mSDtfsCounter, 551 mSDsluCounter, 1184 mSDsCounter, 0 mSdLazyCounter, 2512 mSolverCounterSat, 198 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 552 SdHoareTripleChecker+Valid, 1342 SdHoareTripleChecker+Invalid, 2710 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 198 IncrementalHoareTripleChecker+Valid, 2512 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-10-24 00:41:59,555 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [552 Valid, 1342 Invalid, 2710 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [198 Valid, 2512 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-10-24 00:41:59,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 352 states. [2024-10-24 00:41:59,580 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 352 to 263. [2024-10-24 00:41:59,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 263 states, 200 states have (on average 1.585) internal successors, (317), 204 states have internal predecessors, (317), 46 states have call successors, (46), 13 states have call predecessors, (46), 16 states have return successors, (52), 45 states have call predecessors, (52), 45 states have call successors, (52) [2024-10-24 00:41:59,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 263 states to 263 states and 415 transitions. [2024-10-24 00:41:59,585 INFO L78 Accepts]: Start accepts. Automaton has 263 states and 415 transitions. Word has length 95 [2024-10-24 00:41:59,585 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 00:41:59,586 INFO L471 AbstractCegarLoop]: Abstraction has 263 states and 415 transitions. [2024-10-24 00:41:59,586 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 5.2727272727272725) internal successors, (58), 8 states have internal predecessors, (58), 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 00:41:59,586 INFO L276 IsEmpty]: Start isEmpty. Operand 263 states and 415 transitions. [2024-10-24 00:41:59,588 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2024-10-24 00:41:59,588 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 00:41:59,589 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] [2024-10-24 00:41:59,589 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-24 00:41:59,589 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 00:41:59,589 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 00:41:59,589 INFO L85 PathProgramCache]: Analyzing trace with hash -252240376, now seen corresponding path program 2 times [2024-10-24 00:41:59,589 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 00:41:59,590 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1430154514] [2024-10-24 00:41:59,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 00:41:59,590 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 00:41:59,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:41:59,716 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 00:41:59,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:41:59,728 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 00:41:59,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:41:59,731 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 00:41:59,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:41:59,733 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-24 00:41:59,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:41:59,736 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-24 00:41:59,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:41:59,762 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-24 00:41:59,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:41:59,797 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-10-24 00:41:59,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:41:59,811 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-10-24 00:41:59,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:41:59,814 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-10-24 00:41:59,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:41:59,816 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-10-24 00:41:59,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:41:59,817 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-24 00:41:59,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:41:59,819 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-10-24 00:41:59,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:41:59,820 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 00:41:59,820 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 00:41:59,821 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1430154514] [2024-10-24 00:41:59,821 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1430154514] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 00:41:59,821 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 00:41:59,821 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-10-24 00:41:59,821 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [929152209] [2024-10-24 00:41:59,821 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 00:41:59,822 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-10-24 00:41:59,822 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 00:41:59,822 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-10-24 00:41:59,822 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2024-10-24 00:41:59,823 INFO L87 Difference]: Start difference. First operand 263 states and 415 transitions. Second operand has 12 states, 11 states have (on average 5.363636363636363) internal successors, (59), 8 states have internal predecessors, (59), 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 00:42:01,606 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 00:42:01,607 INFO L93 Difference]: Finished difference Result 594 states and 947 transitions. [2024-10-24 00:42:01,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-24 00:42:01,607 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 5.363636363636363) internal successors, (59), 8 states have internal predecessors, (59), 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 96 [2024-10-24 00:42:01,607 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 00:42:01,610 INFO L225 Difference]: With dead ends: 594 [2024-10-24 00:42:01,610 INFO L226 Difference]: Without dead ends: 354 [2024-10-24 00:42:01,611 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 00:42:01,613 INFO L432 NwaCegarLoop]: 159 mSDtfsCounter, 548 mSDsluCounter, 1184 mSDsCounter, 0 mSdLazyCounter, 2546 mSolverCounterSat, 197 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 549 SdHoareTripleChecker+Valid, 1343 SdHoareTripleChecker+Invalid, 2743 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 197 IncrementalHoareTripleChecker+Valid, 2546 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-10-24 00:42:01,614 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [549 Valid, 1343 Invalid, 2743 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [197 Valid, 2546 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-10-24 00:42:01,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 354 states. [2024-10-24 00:42:01,633 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 354 to 265. [2024-10-24 00:42:01,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 265 states, 201 states have (on average 1.5820895522388059) internal successors, (318), 206 states have internal predecessors, (318), 46 states have call successors, (46), 13 states have call predecessors, (46), 17 states have return successors, (57), 45 states have call predecessors, (57), 45 states have call successors, (57) [2024-10-24 00:42:01,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 265 states to 265 states and 421 transitions. [2024-10-24 00:42:01,636 INFO L78 Accepts]: Start accepts. Automaton has 265 states and 421 transitions. Word has length 96 [2024-10-24 00:42:01,636 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 00:42:01,636 INFO L471 AbstractCegarLoop]: Abstraction has 265 states and 421 transitions. [2024-10-24 00:42:01,636 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 5.363636363636363) internal successors, (59), 8 states have internal predecessors, (59), 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 00:42:01,636 INFO L276 IsEmpty]: Start isEmpty. Operand 265 states and 421 transitions. [2024-10-24 00:42:01,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2024-10-24 00:42:01,638 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 00:42:01,638 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] [2024-10-24 00:42:01,638 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-24 00:42:01,638 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 00:42:01,639 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 00:42:01,639 INFO L85 PathProgramCache]: Analyzing trace with hash -1849391878, now seen corresponding path program 1 times [2024-10-24 00:42:01,639 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 00:42:01,639 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1398393420] [2024-10-24 00:42:01,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 00:42:01,639 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 00:42:01,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:01,731 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 00:42:01,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:01,742 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 00:42:01,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:01,745 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 00:42:01,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:01,747 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-24 00:42:01,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:01,750 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-24 00:42:01,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:01,752 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-24 00:42:01,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:01,762 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-10-24 00:42:01,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:01,773 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-10-24 00:42:01,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:01,775 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-10-24 00:42:01,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:01,777 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-10-24 00:42:01,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:01,779 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-10-24 00:42:01,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:01,781 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-10-24 00:42:01,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:01,782 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 00:42:01,783 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 00:42:01,783 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1398393420] [2024-10-24 00:42:01,783 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1398393420] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 00:42:01,783 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [160243687] [2024-10-24 00:42:01,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 00:42:01,783 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 00:42:01,784 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 00:42:01,785 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 00:42:01,786 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 00:42:02,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:02,044 INFO L255 TraceCheckSpWp]: Trace formula consists of 872 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-24 00:42:02,047 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 00:42:02,073 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 00:42:02,073 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-24 00:42:02,162 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 00:42:02,162 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [160243687] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-24 00:42:02,162 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-24 00:42:02,162 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 4, 4] total 11 [2024-10-24 00:42:02,164 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1687722862] [2024-10-24 00:42:02,164 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-24 00:42:02,165 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-10-24 00:42:02,165 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 00:42:02,165 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-10-24 00:42:02,166 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2024-10-24 00:42:02,166 INFO L87 Difference]: Start difference. First operand 265 states and 421 transitions. Second operand has 11 states, 11 states have (on average 7.363636363636363) internal successors, (81), 7 states have internal predecessors, (81), 2 states have call successors, (30), 6 states have call predecessors, (30), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-10-24 00:42:03,464 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 00:42:03,464 INFO L93 Difference]: Finished difference Result 747 states and 1259 transitions. [2024-10-24 00:42:03,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-10-24 00:42:03,466 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 7.363636363636363) internal successors, (81), 7 states have internal predecessors, (81), 2 states have call successors, (30), 6 states have call predecessors, (30), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 97 [2024-10-24 00:42:03,467 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 00:42:03,471 INFO L225 Difference]: With dead ends: 747 [2024-10-24 00:42:03,472 INFO L226 Difference]: Without dead ends: 684 [2024-10-24 00:42:03,473 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 230 GetRequests, 215 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=66, Invalid=206, Unknown=0, NotChecked=0, Total=272 [2024-10-24 00:42:03,473 INFO L432 NwaCegarLoop]: 194 mSDtfsCounter, 1082 mSDsluCounter, 950 mSDsCounter, 0 mSdLazyCounter, 1352 mSolverCounterSat, 375 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1127 SdHoareTripleChecker+Valid, 1144 SdHoareTripleChecker+Invalid, 1727 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 375 IncrementalHoareTripleChecker+Valid, 1352 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-10-24 00:42:03,474 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1127 Valid, 1144 Invalid, 1727 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [375 Valid, 1352 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-10-24 00:42:03,475 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 684 states. [2024-10-24 00:42:03,529 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 684 to 580. [2024-10-24 00:42:03,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 580 states, 452 states have (on average 1.6438053097345133) internal successors, (743), 457 states have internal predecessors, (743), 110 states have call successors, (110), 13 states have call predecessors, (110), 17 states have return successors, (131), 109 states have call predecessors, (131), 109 states have call successors, (131) [2024-10-24 00:42:03,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 580 states to 580 states and 984 transitions. [2024-10-24 00:42:03,533 INFO L78 Accepts]: Start accepts. Automaton has 580 states and 984 transitions. Word has length 97 [2024-10-24 00:42:03,533 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 00:42:03,533 INFO L471 AbstractCegarLoop]: Abstraction has 580 states and 984 transitions. [2024-10-24 00:42:03,534 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 7.363636363636363) internal successors, (81), 7 states have internal predecessors, (81), 2 states have call successors, (30), 6 states have call predecessors, (30), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-10-24 00:42:03,534 INFO L276 IsEmpty]: Start isEmpty. Operand 580 states and 984 transitions. [2024-10-24 00:42:03,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2024-10-24 00:42:03,537 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 00:42:03,537 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] [2024-10-24 00:42:03,555 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 00:42:03,741 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 00:42:03,742 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 00:42:03,743 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 00:42:03,743 INFO L85 PathProgramCache]: Analyzing trace with hash 1648352279, now seen corresponding path program 1 times [2024-10-24 00:42:03,743 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 00:42:03,743 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1923211234] [2024-10-24 00:42:03,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 00:42:03,743 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 00:42:03,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:03,807 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 00:42:03,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:03,816 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 00:42:03,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:03,818 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 00:42:03,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:03,822 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-24 00:42:03,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:03,824 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-24 00:42:03,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:03,826 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-24 00:42:03,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:03,835 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-10-24 00:42:03,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:03,846 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-10-24 00:42:03,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:03,848 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-10-24 00:42:03,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:03,849 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-10-24 00:42:03,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:03,850 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-10-24 00:42:03,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:03,852 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2024-10-24 00:42:03,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:03,853 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 00:42:03,853 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 00:42:03,854 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1923211234] [2024-10-24 00:42:03,854 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1923211234] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 00:42:03,854 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 00:42:03,854 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 00:42:03,854 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [936508779] [2024-10-24 00:42:03,854 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 00:42:03,854 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 00:42:03,854 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 00:42:03,855 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 00:42:03,855 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 00:42:03,855 INFO L87 Difference]: Start difference. First operand 580 states and 984 transitions. Second operand has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 3 states have internal predecessors, (61), 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 00:42:04,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 00:42:04,897 INFO L93 Difference]: Finished difference Result 1506 states and 2608 transitions. [2024-10-24 00:42:04,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-24 00:42:04,897 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 3 states have internal predecessors, (61), 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 103 [2024-10-24 00:42:04,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 00:42:04,903 INFO L225 Difference]: With dead ends: 1506 [2024-10-24 00:42:04,903 INFO L226 Difference]: Without dead ends: 986 [2024-10-24 00:42:04,906 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 00:42:04,906 INFO L432 NwaCegarLoop]: 172 mSDtfsCounter, 645 mSDsluCounter, 567 mSDsCounter, 0 mSdLazyCounter, 935 mSolverCounterSat, 246 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 660 SdHoareTripleChecker+Valid, 739 SdHoareTripleChecker+Invalid, 1181 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 246 IncrementalHoareTripleChecker+Valid, 935 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-10-24 00:42:04,906 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [660 Valid, 739 Invalid, 1181 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [246 Valid, 935 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-10-24 00:42:04,908 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 986 states. [2024-10-24 00:42:04,979 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 986 to 892. [2024-10-24 00:42:04,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 892 states, 700 states have (on average 1.65) internal successors, (1155), 705 states have internal predecessors, (1155), 174 states have call successors, (174), 13 states have call predecessors, (174), 17 states have return successors, (205), 173 states have call predecessors, (205), 173 states have call successors, (205) [2024-10-24 00:42:04,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 892 states to 892 states and 1534 transitions. [2024-10-24 00:42:04,986 INFO L78 Accepts]: Start accepts. Automaton has 892 states and 1534 transitions. Word has length 103 [2024-10-24 00:42:04,986 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 00:42:04,987 INFO L471 AbstractCegarLoop]: Abstraction has 892 states and 1534 transitions. [2024-10-24 00:42:04,987 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 3 states have internal predecessors, (61), 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 00:42:04,987 INFO L276 IsEmpty]: Start isEmpty. Operand 892 states and 1534 transitions. [2024-10-24 00:42:04,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2024-10-24 00:42:04,992 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 00:42:04,992 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] [2024-10-24 00:42:04,993 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-24 00:42:04,993 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 00:42:04,993 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 00:42:04,993 INFO L85 PathProgramCache]: Analyzing trace with hash 929198233, now seen corresponding path program 1 times [2024-10-24 00:42:04,993 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 00:42:04,994 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [488020915] [2024-10-24 00:42:04,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 00:42:04,994 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 00:42:05,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:05,068 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 00:42:05,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:05,078 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 00:42:05,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:05,082 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 00:42:05,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:05,084 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-24 00:42:05,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:05,088 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-24 00:42:05,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:05,091 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-24 00:42:05,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:05,102 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 00:42:05,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:05,115 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-10-24 00:42:05,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:05,117 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-10-24 00:42:05,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:05,119 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-10-24 00:42:05,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:05,120 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-24 00:42:05,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:05,122 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-24 00:42:05,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:05,124 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 00:42:05,124 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 00:42:05,124 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [488020915] [2024-10-24 00:42:05,124 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [488020915] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 00:42:05,124 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 00:42:05,125 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 00:42:05,125 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1229626106] [2024-10-24 00:42:05,125 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 00:42:05,125 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 00:42:05,125 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 00:42:05,126 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 00:42:05,126 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 00:42:05,126 INFO L87 Difference]: Start difference. First operand 892 states and 1534 transitions. Second operand has 7 states, 7 states have (on average 8.857142857142858) internal successors, (62), 3 states have internal predecessors, (62), 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 00:42:06,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 00:42:06,130 INFO L93 Difference]: Finished difference Result 2255 states and 3926 transitions. [2024-10-24 00:42:06,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-24 00:42:06,131 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.857142857142858) internal successors, (62), 3 states have internal predecessors, (62), 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 104 [2024-10-24 00:42:06,131 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 00:42:06,140 INFO L225 Difference]: With dead ends: 2255 [2024-10-24 00:42:06,140 INFO L226 Difference]: Without dead ends: 1473 [2024-10-24 00:42:06,144 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 00:42:06,145 INFO L432 NwaCegarLoop]: 163 mSDtfsCounter, 645 mSDsluCounter, 552 mSDsCounter, 0 mSdLazyCounter, 907 mSolverCounterSat, 254 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 661 SdHoareTripleChecker+Valid, 715 SdHoareTripleChecker+Invalid, 1161 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 254 IncrementalHoareTripleChecker+Valid, 907 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-10-24 00:42:06,145 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [661 Valid, 715 Invalid, 1161 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [254 Valid, 907 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-10-24 00:42:06,146 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1473 states. [2024-10-24 00:42:06,215 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1473 to 1379. [2024-10-24 00:42:06,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1379 states, 1092 states have (on average 1.6529304029304028) internal successors, (1805), 1097 states have internal predecessors, (1805), 269 states have call successors, (269), 13 states have call predecessors, (269), 17 states have return successors, (300), 268 states have call predecessors, (300), 268 states have call successors, (300) [2024-10-24 00:42:06,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1379 states to 1379 states and 2374 transitions. [2024-10-24 00:42:06,224 INFO L78 Accepts]: Start accepts. Automaton has 1379 states and 2374 transitions. Word has length 104 [2024-10-24 00:42:06,224 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 00:42:06,224 INFO L471 AbstractCegarLoop]: Abstraction has 1379 states and 2374 transitions. [2024-10-24 00:42:06,225 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.857142857142858) internal successors, (62), 3 states have internal predecessors, (62), 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 00:42:06,225 INFO L276 IsEmpty]: Start isEmpty. Operand 1379 states and 2374 transitions. [2024-10-24 00:42:06,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2024-10-24 00:42:06,232 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 00:42:06,232 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] [2024-10-24 00:42:06,232 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-10-24 00:42:06,232 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 00:42:06,233 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 00:42:06,233 INFO L85 PathProgramCache]: Analyzing trace with hash -482288583, now seen corresponding path program 1 times [2024-10-24 00:42:06,233 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 00:42:06,233 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1971906467] [2024-10-24 00:42:06,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 00:42:06,233 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 00:42:06,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:06,291 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 00:42:06,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:06,301 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 00:42:06,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:06,304 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 00:42:06,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:06,306 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-24 00:42:06,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:06,308 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-24 00:42:06,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:06,312 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-24 00:42:06,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:06,321 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-10-24 00:42:06,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:06,330 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 00:42:06,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:06,332 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-10-24 00:42:06,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:06,333 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-24 00:42:06,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:06,335 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-10-24 00:42:06,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:06,337 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-10-24 00:42:06,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:06,339 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 00:42:06,339 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 00:42:06,339 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1971906467] [2024-10-24 00:42:06,339 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1971906467] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 00:42:06,339 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 00:42:06,339 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 00:42:06,339 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2069878473] [2024-10-24 00:42:06,339 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 00:42:06,340 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 00:42:06,340 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 00:42:06,340 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 00:42:06,340 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 00:42:06,340 INFO L87 Difference]: Start difference. First operand 1379 states and 2374 transitions. Second operand has 7 states, 7 states have (on average 9.0) internal successors, (63), 3 states have internal predecessors, (63), 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 00:42:07,383 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 00:42:07,384 INFO L93 Difference]: Finished difference Result 3357 states and 5885 transitions. [2024-10-24 00:42:07,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-24 00:42:07,384 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.0) internal successors, (63), 3 states have internal predecessors, (63), 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 105 [2024-10-24 00:42:07,384 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 00:42:07,398 INFO L225 Difference]: With dead ends: 3357 [2024-10-24 00:42:07,398 INFO L226 Difference]: Without dead ends: 2208 [2024-10-24 00:42:07,404 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 00:42:07,404 INFO L432 NwaCegarLoop]: 160 mSDtfsCounter, 643 mSDsluCounter, 547 mSDsCounter, 0 mSdLazyCounter, 897 mSolverCounterSat, 246 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 659 SdHoareTripleChecker+Valid, 707 SdHoareTripleChecker+Invalid, 1143 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 246 IncrementalHoareTripleChecker+Valid, 897 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-10-24 00:42:07,405 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [659 Valid, 707 Invalid, 1143 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [246 Valid, 897 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-10-24 00:42:07,407 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2208 states. [2024-10-24 00:42:07,510 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2208 to 2114. [2024-10-24 00:42:07,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2114 states, 1704 states have (on average 1.6561032863849765) internal successors, (2822), 1709 states have internal predecessors, (2822), 392 states have call successors, (392), 13 states have call predecessors, (392), 17 states have return successors, (439), 391 states have call predecessors, (439), 391 states have call successors, (439) [2024-10-24 00:42:07,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2114 states to 2114 states and 3653 transitions. [2024-10-24 00:42:07,523 INFO L78 Accepts]: Start accepts. Automaton has 2114 states and 3653 transitions. Word has length 105 [2024-10-24 00:42:07,523 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 00:42:07,523 INFO L471 AbstractCegarLoop]: Abstraction has 2114 states and 3653 transitions. [2024-10-24 00:42:07,523 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.0) internal successors, (63), 3 states have internal predecessors, (63), 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 00:42:07,523 INFO L276 IsEmpty]: Start isEmpty. Operand 2114 states and 3653 transitions. [2024-10-24 00:42:07,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2024-10-24 00:42:07,531 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 00:42:07,532 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] [2024-10-24 00:42:07,532 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-10-24 00:42:07,532 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 00:42:07,532 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 00:42:07,532 INFO L85 PathProgramCache]: Analyzing trace with hash -1998589894, now seen corresponding path program 1 times [2024-10-24 00:42:07,533 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 00:42:07,533 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1740863786] [2024-10-24 00:42:07,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 00:42:07,533 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 00:42:07,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:07,593 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 00:42:07,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:07,602 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 00:42:07,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:07,605 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 00:42:07,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:07,607 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-24 00:42:07,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:07,609 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-24 00:42:07,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:07,610 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-24 00:42:07,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:07,619 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-10-24 00:42:07,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:07,629 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-10-24 00:42:07,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:07,631 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-10-24 00:42:07,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:07,632 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-10-24 00:42:07,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:07,635 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-10-24 00:42:07,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:07,636 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-10-24 00:42:07,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:07,637 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 00:42:07,637 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 00:42:07,637 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1740863786] [2024-10-24 00:42:07,637 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1740863786] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 00:42:07,637 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 00:42:07,638 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 00:42:07,638 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [537994582] [2024-10-24 00:42:07,638 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 00:42:07,638 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 00:42:07,638 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 00:42:07,639 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 00:42:07,639 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 00:42:07,639 INFO L87 Difference]: Start difference. First operand 2114 states and 3653 transitions. Second operand has 7 states, 7 states have (on average 9.142857142857142) internal successors, (64), 3 states have internal predecessors, (64), 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 00:42:08,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 00:42:08,569 INFO L93 Difference]: Finished difference Result 5067 states and 8935 transitions. [2024-10-24 00:42:08,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-24 00:42:08,570 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.142857142857142) internal successors, (64), 3 states have internal predecessors, (64), 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 106 [2024-10-24 00:42:08,570 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 00:42:08,588 INFO L225 Difference]: With dead ends: 5067 [2024-10-24 00:42:08,588 INFO L226 Difference]: Without dead ends: 3380 [2024-10-24 00:42:08,594 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 00:42:08,594 INFO L432 NwaCegarLoop]: 160 mSDtfsCounter, 640 mSDsluCounter, 547 mSDsCounter, 0 mSdLazyCounter, 898 mSolverCounterSat, 244 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 655 SdHoareTripleChecker+Valid, 707 SdHoareTripleChecker+Invalid, 1142 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 244 IncrementalHoareTripleChecker+Valid, 898 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-10-24 00:42:08,595 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [655 Valid, 707 Invalid, 1142 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [244 Valid, 898 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-10-24 00:42:08,598 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3380 states. [2024-10-24 00:42:08,717 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3380 to 3286. [2024-10-24 00:42:08,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3286 states, 2697 states have (on average 1.6581386725991842) internal successors, (4472), 2702 states have internal predecessors, (4472), 571 states have call successors, (571), 13 states have call predecessors, (571), 17 states have return successors, (644), 570 states have call predecessors, (644), 570 states have call successors, (644) [2024-10-24 00:42:08,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3286 states to 3286 states and 5687 transitions. [2024-10-24 00:42:08,736 INFO L78 Accepts]: Start accepts. Automaton has 3286 states and 5687 transitions. Word has length 106 [2024-10-24 00:42:08,736 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 00:42:08,736 INFO L471 AbstractCegarLoop]: Abstraction has 3286 states and 5687 transitions. [2024-10-24 00:42:08,736 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.142857142857142) internal successors, (64), 3 states have internal predecessors, (64), 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 00:42:08,736 INFO L276 IsEmpty]: Start isEmpty. Operand 3286 states and 5687 transitions. [2024-10-24 00:42:08,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-10-24 00:42:08,745 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 00:42:08,745 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 00:42:08,746 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-10-24 00:42:08,746 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 00:42:08,746 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 00:42:08,746 INFO L85 PathProgramCache]: Analyzing trace with hash 1471501429, now seen corresponding path program 1 times [2024-10-24 00:42:08,746 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 00:42:08,746 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [860527784] [2024-10-24 00:42:08,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 00:42:08,746 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 00:42:08,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:08,794 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 00:42:08,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:08,803 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 00:42:08,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:08,805 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 00:42:08,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:08,808 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-24 00:42:08,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:08,810 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-24 00:42:08,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:08,811 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-24 00:42:08,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:08,819 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-10-24 00:42:08,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:08,827 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-10-24 00:42:08,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:08,829 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-24 00:42:08,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:08,832 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-24 00:42:08,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:08,834 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-24 00:42:08,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:08,835 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-10-24 00:42:08,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:08,837 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 00:42:08,837 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 00:42:08,837 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [860527784] [2024-10-24 00:42:08,837 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [860527784] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 00:42:08,837 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 00:42:08,838 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 00:42:08,838 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [978283914] [2024-10-24 00:42:08,838 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 00:42:08,839 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 00:42:08,839 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 00:42:08,839 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 00:42:08,839 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 00:42:08,839 INFO L87 Difference]: Start difference. First operand 3286 states and 5687 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 00:42:09,854 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 00:42:09,855 INFO L93 Difference]: Finished difference Result 7922 states and 13989 transitions. [2024-10-24 00:42:09,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-24 00:42:09,856 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 00:42:09,856 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 00:42:09,886 INFO L225 Difference]: With dead ends: 7922 [2024-10-24 00:42:09,887 INFO L226 Difference]: Without dead ends: 5350 [2024-10-24 00:42:09,897 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 00:42:09,898 INFO L432 NwaCegarLoop]: 174 mSDtfsCounter, 638 mSDsluCounter, 566 mSDsCounter, 0 mSdLazyCounter, 927 mSolverCounterSat, 244 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 653 SdHoareTripleChecker+Valid, 740 SdHoareTripleChecker+Invalid, 1171 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 244 IncrementalHoareTripleChecker+Valid, 927 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-10-24 00:42:09,898 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [653 Valid, 740 Invalid, 1171 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [244 Valid, 927 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-10-24 00:42:09,903 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5350 states. [2024-10-24 00:42:10,132 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5350 to 5256. [2024-10-24 00:42:10,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5256 states, 4291 states have (on average 1.6460032626427405) internal successors, (7063), 4296 states have internal predecessors, (7063), 947 states have call successors, (947), 13 states have call predecessors, (947), 17 states have return successors, (1064), 946 states have call predecessors, (1064), 946 states have call successors, (1064) [2024-10-24 00:42:10,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5256 states to 5256 states and 9074 transitions. [2024-10-24 00:42:10,162 INFO L78 Accepts]: Start accepts. Automaton has 5256 states and 9074 transitions. Word has length 107 [2024-10-24 00:42:10,162 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 00:42:10,162 INFO L471 AbstractCegarLoop]: Abstraction has 5256 states and 9074 transitions. [2024-10-24 00:42:10,162 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 00:42:10,162 INFO L276 IsEmpty]: Start isEmpty. Operand 5256 states and 9074 transitions. [2024-10-24 00:42:10,176 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-10-24 00:42:10,176 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 00:42:10,177 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 00:42:10,177 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-10-24 00:42:10,177 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 00:42:10,177 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 00:42:10,177 INFO L85 PathProgramCache]: Analyzing trace with hash -1827861506, now seen corresponding path program 1 times [2024-10-24 00:42:10,177 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 00:42:10,177 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1323894972] [2024-10-24 00:42:10,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 00:42:10,178 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 00:42:10,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:10,229 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 00:42:10,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:10,238 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 00:42:10,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:10,241 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 00:42:10,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:10,242 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-24 00:42:10,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:10,245 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-24 00:42:10,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:10,246 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-24 00:42:10,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:10,255 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-10-24 00:42:10,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:10,264 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-10-24 00:42:10,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:10,265 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-10-24 00:42:10,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:10,267 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-10-24 00:42:10,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:10,269 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-10-24 00:42:10,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:10,270 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-10-24 00:42:10,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:10,273 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 00:42:10,273 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 00:42:10,273 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1323894972] [2024-10-24 00:42:10,273 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1323894972] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 00:42:10,273 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 00:42:10,273 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 00:42:10,273 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1999647466] [2024-10-24 00:42:10,273 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 00:42:10,274 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 00:42:10,274 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 00:42:10,274 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 00:42:10,274 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 00:42:10,274 INFO L87 Difference]: Start difference. First operand 5256 states and 9074 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 00:42:11,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 00:42:11,269 INFO L93 Difference]: Finished difference Result 13059 states and 23010 transitions. [2024-10-24 00:42:11,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-24 00:42:11,270 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 00:42:11,270 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 00:42:11,318 INFO L225 Difference]: With dead ends: 13059 [2024-10-24 00:42:11,319 INFO L226 Difference]: Without dead ends: 8883 [2024-10-24 00:42:11,335 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 00:42:11,336 INFO L432 NwaCegarLoop]: 163 mSDtfsCounter, 635 mSDsluCounter, 552 mSDsCounter, 0 mSdLazyCounter, 911 mSolverCounterSat, 250 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 650 SdHoareTripleChecker+Valid, 715 SdHoareTripleChecker+Invalid, 1161 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 250 IncrementalHoareTripleChecker+Valid, 911 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-10-24 00:42:11,336 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [650 Valid, 715 Invalid, 1161 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [250 Valid, 911 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-10-24 00:42:11,344 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8883 states. [2024-10-24 00:42:11,668 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8883 to 8789. [2024-10-24 00:42:11,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8789 states, 7218 states have (on average 1.642975893599335) internal successors, (11859), 7223 states have internal predecessors, (11859), 1553 states have call successors, (1553), 13 states have call predecessors, (1553), 17 states have return successors, (1748), 1552 states have call predecessors, (1748), 1552 states have call successors, (1748) [2024-10-24 00:42:11,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8789 states to 8789 states and 15160 transitions. [2024-10-24 00:42:11,712 INFO L78 Accepts]: Start accepts. Automaton has 8789 states and 15160 transitions. Word has length 108 [2024-10-24 00:42:11,713 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 00:42:11,713 INFO L471 AbstractCegarLoop]: Abstraction has 8789 states and 15160 transitions. [2024-10-24 00:42:11,713 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 00:42:11,714 INFO L276 IsEmpty]: Start isEmpty. Operand 8789 states and 15160 transitions. [2024-10-24 00:42:11,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-10-24 00:42:11,729 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 00:42:11,729 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 00:42:11,729 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-10-24 00:42:11,729 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 00:42:11,730 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 00:42:11,730 INFO L85 PathProgramCache]: Analyzing trace with hash -902953501, now seen corresponding path program 1 times [2024-10-24 00:42:11,730 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 00:42:11,730 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2039125175] [2024-10-24 00:42:11,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 00:42:11,730 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 00:42:11,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:11,782 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 00:42:11,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:11,791 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 00:42:11,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:11,793 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 00:42:11,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:11,795 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-24 00:42:11,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:11,797 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-24 00:42:11,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:11,799 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-24 00:42:11,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:11,808 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-10-24 00:42:11,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:11,816 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-10-24 00:42:11,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:11,818 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-10-24 00:42:11,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:11,820 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-10-24 00:42:11,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:11,821 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2024-10-24 00:42:11,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:11,823 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-10-24 00:42:11,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:11,824 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 00:42:11,824 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 00:42:11,824 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2039125175] [2024-10-24 00:42:11,824 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2039125175] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 00:42:11,824 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 00:42:11,824 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 00:42:11,824 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1540328692] [2024-10-24 00:42:11,824 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 00:42:11,825 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 00:42:11,825 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 00:42:11,825 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 00:42:11,825 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 00:42:11,825 INFO L87 Difference]: Start difference. First operand 8789 states and 15160 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 00:42:13,042 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 00:42:13,042 INFO L93 Difference]: Finished difference Result 22831 states and 40144 transitions. [2024-10-24 00:42:13,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-24 00:42:13,043 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 00:42:13,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 00:42:13,097 INFO L225 Difference]: With dead ends: 22831 [2024-10-24 00:42:13,097 INFO L226 Difference]: Without dead ends: 15555 [2024-10-24 00:42:13,121 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 00:42:13,121 INFO L432 NwaCegarLoop]: 169 mSDtfsCounter, 636 mSDsluCounter, 562 mSDsCounter, 0 mSdLazyCounter, 921 mSolverCounterSat, 256 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 652 SdHoareTripleChecker+Valid, 731 SdHoareTripleChecker+Invalid, 1177 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 256 IncrementalHoareTripleChecker+Valid, 921 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-10-24 00:42:13,122 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [652 Valid, 731 Invalid, 1177 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [256 Valid, 921 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-10-24 00:42:13,135 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15555 states. [2024-10-24 00:42:13,640 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15555 to 15461. [2024-10-24 00:42:13,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15461 states, 12687 states have (on average 1.63316780956885) internal successors, (20720), 12692 states have internal predecessors, (20720), 2756 states have call successors, (2756), 13 states have call predecessors, (2756), 17 states have return successors, (3095), 2755 states have call predecessors, (3095), 2755 states have call successors, (3095) [2024-10-24 00:42:13,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15461 states to 15461 states and 26571 transitions. [2024-10-24 00:42:13,719 INFO L78 Accepts]: Start accepts. Automaton has 15461 states and 26571 transitions. Word has length 109 [2024-10-24 00:42:13,719 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 00:42:13,719 INFO L471 AbstractCegarLoop]: Abstraction has 15461 states and 26571 transitions. [2024-10-24 00:42:13,720 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 00:42:13,720 INFO L276 IsEmpty]: Start isEmpty. Operand 15461 states and 26571 transitions. [2024-10-24 00:42:13,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2024-10-24 00:42:13,742 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 00:42:13,743 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 00:42:13,743 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-10-24 00:42:13,743 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 00:42:13,743 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 00:42:13,743 INFO L85 PathProgramCache]: Analyzing trace with hash -80917313, now seen corresponding path program 1 times [2024-10-24 00:42:13,743 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 00:42:13,743 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1234482776] [2024-10-24 00:42:13,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 00:42:13,744 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 00:42:13,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:13,792 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 00:42:13,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:13,801 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 00:42:13,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:13,803 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 00:42:13,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:13,804 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-24 00:42:13,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:13,806 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-24 00:42:13,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:13,808 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-24 00:42:13,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:13,815 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 00:42:13,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:13,825 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-24 00:42:13,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:13,827 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-10-24 00:42:13,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:13,828 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-10-24 00:42:13,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:13,829 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-24 00:42:13,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:13,831 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-24 00:42:13,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:13,832 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 00:42:13,832 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 00:42:13,832 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1234482776] [2024-10-24 00:42:13,832 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1234482776] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 00:42:13,832 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 00:42:13,832 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 00:42:13,833 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1311500619] [2024-10-24 00:42:13,833 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 00:42:13,833 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 00:42:13,833 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 00:42:13,833 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 00:42:13,834 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 00:42:13,834 INFO L87 Difference]: Start difference. First operand 15461 states and 26571 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 00:42:15,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 00:42:15,333 INFO L93 Difference]: Finished difference Result 40998 states and 71944 transitions. [2024-10-24 00:42:15,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-24 00:42:15,334 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 00:42:15,334 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 00:42:15,476 INFO L225 Difference]: With dead ends: 40998 [2024-10-24 00:42:15,476 INFO L226 Difference]: Without dead ends: 27670 [2024-10-24 00:42:15,539 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 00:42:15,540 INFO L432 NwaCegarLoop]: 160 mSDtfsCounter, 632 mSDsluCounter, 548 mSDsCounter, 0 mSdLazyCounter, 902 mSolverCounterSat, 252 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 647 SdHoareTripleChecker+Valid, 708 SdHoareTripleChecker+Invalid, 1154 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 252 IncrementalHoareTripleChecker+Valid, 902 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-10-24 00:42:15,540 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [647 Valid, 708 Invalid, 1154 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [252 Valid, 902 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-10-24 00:42:15,569 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27670 states. [2024-10-24 00:42:16,568 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27670 to 27576. [2024-10-24 00:42:16,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27576 states, 22763 states have (on average 1.6291349997803453) internal successors, (37084), 22768 states have internal predecessors, (37084), 4795 states have call successors, (4795), 13 states have call predecessors, (4795), 17 states have return successors, (5408), 4794 states have call predecessors, (5408), 4794 states have call successors, (5408) [2024-10-24 00:42:16,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27576 states to 27576 states and 47287 transitions. [2024-10-24 00:42:16,714 INFO L78 Accepts]: Start accepts. Automaton has 27576 states and 47287 transitions. Word has length 110 [2024-10-24 00:42:16,715 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 00:42:16,715 INFO L471 AbstractCegarLoop]: Abstraction has 27576 states and 47287 transitions. [2024-10-24 00:42:16,715 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 00:42:16,715 INFO L276 IsEmpty]: Start isEmpty. Operand 27576 states and 47287 transitions. [2024-10-24 00:42:16,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-10-24 00:42:16,744 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 00:42:16,744 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 00:42:16,744 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-10-24 00:42:16,744 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 00:42:16,745 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 00:42:16,745 INFO L85 PathProgramCache]: Analyzing trace with hash -960011579, now seen corresponding path program 1 times [2024-10-24 00:42:16,745 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 00:42:16,745 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [702750446] [2024-10-24 00:42:16,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 00:42:16,745 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 00:42:16,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:16,807 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 00:42:16,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:16,816 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 00:42:16,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:16,819 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 00:42:16,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:16,822 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-24 00:42:16,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:16,824 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-24 00:42:16,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:16,829 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-24 00:42:16,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:16,837 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-10-24 00:42:16,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:16,847 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-24 00:42:16,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:16,850 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-24 00:42:16,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:16,851 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-10-24 00:42:16,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:16,852 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-10-24 00:42:16,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:16,854 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-10-24 00:42:16,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:16,855 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 00:42:16,855 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 00:42:16,855 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [702750446] [2024-10-24 00:42:16,856 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [702750446] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 00:42:16,856 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 00:42:16,856 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 00:42:16,856 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2059747240] [2024-10-24 00:42:16,856 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 00:42:16,857 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 00:42:16,857 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 00:42:16,858 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 00:42:16,858 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 00:42:16,858 INFO L87 Difference]: Start difference. First operand 27576 states and 47287 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 00:42:19,017 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 00:42:19,017 INFO L93 Difference]: Finished difference Result 75190 states and 131133 transitions. [2024-10-24 00:42:19,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-24 00:42:19,018 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 00:42:19,018 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 00:42:19,232 INFO L225 Difference]: With dead ends: 75190 [2024-10-24 00:42:19,233 INFO L226 Difference]: Without dead ends: 50494 [2024-10-24 00:42:19,302 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 00:42:19,302 INFO L432 NwaCegarLoop]: 163 mSDtfsCounter, 629 mSDsluCounter, 552 mSDsCounter, 0 mSdLazyCounter, 914 mSolverCounterSat, 250 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 644 SdHoareTripleChecker+Valid, 715 SdHoareTripleChecker+Invalid, 1164 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 250 IncrementalHoareTripleChecker+Valid, 914 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-10-24 00:42:19,303 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [644 Valid, 715 Invalid, 1164 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [250 Valid, 914 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-10-24 00:42:19,336 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50494 states. [2024-10-24 00:42:21,223 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50494 to 50400. [2024-10-24 00:42:21,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50400 states, 41872 states have (on average 1.6239491784486053) internal successors, (67998), 41877 states have internal predecessors, (67998), 8510 states have call successors, (8510), 13 states have call predecessors, (8510), 17 states have return successors, (9655), 8509 states have call predecessors, (9655), 8509 states have call successors, (9655) [2024-10-24 00:42:21,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50400 states to 50400 states and 86163 transitions. [2024-10-24 00:42:21,524 INFO L78 Accepts]: Start accepts. Automaton has 50400 states and 86163 transitions. Word has length 111 [2024-10-24 00:42:21,524 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 00:42:21,524 INFO L471 AbstractCegarLoop]: Abstraction has 50400 states and 86163 transitions. [2024-10-24 00:42:21,525 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 00:42:21,525 INFO L276 IsEmpty]: Start isEmpty. Operand 50400 states and 86163 transitions. [2024-10-24 00:42:21,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2024-10-24 00:42:21,548 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 00:42:21,549 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 00:42:21,549 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-10-24 00:42:21,549 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 00:42:21,549 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 00:42:21,549 INFO L85 PathProgramCache]: Analyzing trace with hash -1645474849, now seen corresponding path program 1 times [2024-10-24 00:42:21,550 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 00:42:21,550 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1594194682] [2024-10-24 00:42:21,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 00:42:21,550 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 00:42:21,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:21,617 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 00:42:21,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:21,626 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 00:42:21,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:21,632 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 00:42:21,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:21,635 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-24 00:42:21,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:21,638 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-24 00:42:21,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:21,640 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-24 00:42:21,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:21,649 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-10-24 00:42:21,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:21,658 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-10-24 00:42:21,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:21,661 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-10-24 00:42:21,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:21,665 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-10-24 00:42:21,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:21,666 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-10-24 00:42:21,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:21,668 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-10-24 00:42:21,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:21,669 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 00:42:21,670 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 00:42:21,670 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1594194682] [2024-10-24 00:42:21,670 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1594194682] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 00:42:21,670 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 00:42:21,671 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 00:42:21,671 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [309453395] [2024-10-24 00:42:21,671 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 00:42:21,671 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 00:42:21,672 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 00:42:21,673 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 00:42:21,673 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 00:42:21,673 INFO L87 Difference]: Start difference. First operand 50400 states and 86163 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 00:42:24,620 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 00:42:24,621 INFO L93 Difference]: Finished difference Result 93937 states and 164296 transitions. [2024-10-24 00:42:24,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-24 00:42:24,621 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 00:42:24,621 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 00:42:25,049 INFO L225 Difference]: With dead ends: 93937 [2024-10-24 00:42:25,049 INFO L226 Difference]: Without dead ends: 93874 [2024-10-24 00:42:25,109 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 00:42:25,110 INFO L432 NwaCegarLoop]: 163 mSDtfsCounter, 624 mSDsluCounter, 555 mSDsCounter, 0 mSdLazyCounter, 915 mSolverCounterSat, 245 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 638 SdHoareTripleChecker+Valid, 718 SdHoareTripleChecker+Invalid, 1160 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 245 IncrementalHoareTripleChecker+Valid, 915 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-10-24 00:42:25,110 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [638 Valid, 718 Invalid, 1160 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [245 Valid, 915 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-10-24 00:42:25,406 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93874 states. [2024-10-24 00:42:28,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93874 to 93780. [2024-10-24 00:42:28,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93780 states, 78453 states have (on average 1.6173887550507948) internal successors, (126889), 78458 states have internal predecessors, (126889), 15309 states have call successors, (15309), 13 states have call predecessors, (15309), 17 states have return successors, (17500), 15308 states have call predecessors, (17500), 15308 states have call successors, (17500) [2024-10-24 00:42:28,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93780 states to 93780 states and 159698 transitions. [2024-10-24 00:42:28,809 INFO L78 Accepts]: Start accepts. Automaton has 93780 states and 159698 transitions. Word has length 112 [2024-10-24 00:42:28,810 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 00:42:28,810 INFO L471 AbstractCegarLoop]: Abstraction has 93780 states and 159698 transitions. [2024-10-24 00:42:28,810 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 00:42:28,810 INFO L276 IsEmpty]: Start isEmpty. Operand 93780 states and 159698 transitions. [2024-10-24 00:42:28,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2024-10-24 00:42:28,838 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 00:42:28,838 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 00:42:28,838 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-10-24 00:42:28,839 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 00:42:28,839 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 00:42:28,839 INFO L85 PathProgramCache]: Analyzing trace with hash 822205828, now seen corresponding path program 1 times [2024-10-24 00:42:28,839 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 00:42:28,839 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [709366427] [2024-10-24 00:42:28,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 00:42:28,840 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 00:42:28,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:29,142 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 00:42:29,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:29,158 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 00:42:29,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:29,161 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 00:42:29,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:29,196 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-24 00:42:29,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:29,202 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-24 00:42:29,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:29,209 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-24 00:42:29,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:29,232 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-10-24 00:42:29,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:29,250 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-10-24 00:42:29,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:29,289 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-24 00:42:29,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:29,293 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-24 00:42:29,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:29,317 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-10-24 00:42:29,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:29,320 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-10-24 00:42:29,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:29,325 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 00:42:29,326 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 00:42:29,326 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [709366427] [2024-10-24 00:42:29,326 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [709366427] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 00:42:29,326 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1415748204] [2024-10-24 00:42:29,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 00:42:29,326 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 00:42:29,326 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 00:42:29,329 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 00:42:29,340 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 00:42:29,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:29,610 INFO L255 TraceCheckSpWp]: Trace formula consists of 923 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-10-24 00:42:29,614 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 00:42:29,856 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 00:42:29,857 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 00:42:29,857 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1415748204] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 00:42:29,857 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-24 00:42:29,857 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [18] total 27 [2024-10-24 00:42:29,857 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1810864214] [2024-10-24 00:42:29,857 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 00:42:29,858 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-10-24 00:42:29,858 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 00:42:29,858 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-10-24 00:42:29,859 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=639, Unknown=0, NotChecked=0, Total=702 [2024-10-24 00:42:29,859 INFO L87 Difference]: Start difference. First operand 93780 states and 159698 transitions. Second operand has 11 states, 10 states have (on average 8.1) internal successors, (81), 9 states have internal predecessors, (81), 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 00:42:32,272 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 00:42:32,272 INFO L93 Difference]: Finished difference Result 93926 states and 159890 transitions. [2024-10-24 00:42:32,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-24 00:42:32,273 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 8.1) internal successors, (81), 9 states have internal predecessors, (81), 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 113 [2024-10-24 00:42:32,273 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 00:42:32,893 INFO L225 Difference]: With dead ends: 93926 [2024-10-24 00:42:32,893 INFO L226 Difference]: Without dead ends: 93868 [2024-10-24 00:42:32,920 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 161 GetRequests, 125 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 00:42:32,921 INFO L432 NwaCegarLoop]: 322 mSDtfsCounter, 382 mSDsluCounter, 2237 mSDsCounter, 0 mSdLazyCounter, 374 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 385 SdHoareTripleChecker+Valid, 2559 SdHoareTripleChecker+Invalid, 414 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 374 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-10-24 00:42:32,921 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [385 Valid, 2559 Invalid, 414 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 374 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-10-24 00:42:32,974 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93868 states. [2024-10-24 00:42:35,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93868 to 93852. [2024-10-24 00:42:35,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93852 states, 78508 states have (on average 1.6172491975340093) internal successors, (126967), 78513 states have internal predecessors, (126967), 15317 states have call successors, (15317), 20 states have call predecessors, (15317), 26 states have return successors, (17510), 15318 states have call predecessors, (17510), 15315 states have call successors, (17510) [2024-10-24 00:42:36,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93852 states to 93852 states and 159794 transitions. [2024-10-24 00:42:36,065 INFO L78 Accepts]: Start accepts. Automaton has 93852 states and 159794 transitions. Word has length 113 [2024-10-24 00:42:36,066 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 00:42:36,066 INFO L471 AbstractCegarLoop]: Abstraction has 93852 states and 159794 transitions. [2024-10-24 00:42:36,066 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 8.1) internal successors, (81), 9 states have internal predecessors, (81), 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 00:42:36,066 INFO L276 IsEmpty]: Start isEmpty. Operand 93852 states and 159794 transitions. [2024-10-24 00:42:36,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2024-10-24 00:42:36,092 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 00:42:36,092 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 00:42:36,110 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2024-10-24 00:42:36,292 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 00:42:36,293 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 00:42:36,293 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 00:42:36,293 INFO L85 PathProgramCache]: Analyzing trace with hash 2037742040, now seen corresponding path program 1 times [2024-10-24 00:42:36,293 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 00:42:36,293 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1026942059] [2024-10-24 00:42:36,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 00:42:36,294 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 00:42:36,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:36,379 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 00:42:36,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:36,389 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 00:42:36,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:36,392 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 00:42:36,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:36,394 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-24 00:42:36,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:36,397 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-24 00:42:36,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:36,400 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-24 00:42:36,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:36,408 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-10-24 00:42:36,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:36,418 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-10-24 00:42:36,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:36,439 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-10-24 00:42:36,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:36,444 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-10-24 00:42:36,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:36,448 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-10-24 00:42:36,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:36,450 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-10-24 00:42:36,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:36,451 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2024-10-24 00:42:36,451 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 00:42:36,451 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1026942059] [2024-10-24 00:42:36,452 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1026942059] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 00:42:36,452 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1702611002] [2024-10-24 00:42:36,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 00:42:36,452 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 00:42:36,452 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 00:42:36,454 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 00:42:36,456 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 00:42:36,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:36,702 INFO L255 TraceCheckSpWp]: Trace formula consists of 924 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-24 00:42:36,705 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 00:42:36,737 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2024-10-24 00:42:36,738 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 00:42:36,738 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1702611002] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 00:42:36,738 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-24 00:42:36,738 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 12 [2024-10-24 00:42:36,738 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2114841591] [2024-10-24 00:42:36,738 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 00:42:36,739 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 00:42:36,739 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 00:42:36,739 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 00:42:36,740 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2024-10-24 00:42:36,740 INFO L87 Difference]: Start difference. First operand 93852 states and 159794 transitions. Second operand has 5 states, 4 states have (on average 19.5) internal successors, (78), 5 states have internal predecessors, (78), 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 00:42:38,957 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 00:42:38,958 INFO L93 Difference]: Finished difference Result 93916 states and 159878 transitions. [2024-10-24 00:42:38,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-24 00:42:38,958 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 19.5) internal successors, (78), 5 states have internal predecessors, (78), 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 114 [2024-10-24 00:42:38,959 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 00:42:39,498 INFO L225 Difference]: With dead ends: 93916 [2024-10-24 00:42:39,499 INFO L226 Difference]: Without dead ends: 93856 [2024-10-24 00:42:39,533 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 141 GetRequests, 131 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2024-10-24 00:42:39,535 INFO L432 NwaCegarLoop]: 305 mSDtfsCounter, 0 mSDsluCounter, 905 mSDsCounter, 0 mSdLazyCounter, 71 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 1210 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 71 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 00:42:39,536 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 1210 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 71 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 00:42:39,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93856 states. [2024-10-24 00:42:42,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93856 to 93854. [2024-10-24 00:42:42,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93854 states, 78509 states have (on average 1.6172413353882995) internal successors, (126968), 78515 states have internal predecessors, (126968), 15317 states have call successors, (15317), 20 states have call predecessors, (15317), 27 states have return successors, (17511), 15318 states have call predecessors, (17511), 15315 states have call successors, (17511) [2024-10-24 00:42:42,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93854 states to 93854 states and 159796 transitions. [2024-10-24 00:42:42,960 INFO L78 Accepts]: Start accepts. Automaton has 93854 states and 159796 transitions. Word has length 114 [2024-10-24 00:42:42,960 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 00:42:42,960 INFO L471 AbstractCegarLoop]: Abstraction has 93854 states and 159796 transitions. [2024-10-24 00:42:42,960 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 19.5) internal successors, (78), 5 states have internal predecessors, (78), 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 00:42:42,960 INFO L276 IsEmpty]: Start isEmpty. Operand 93854 states and 159796 transitions. [2024-10-24 00:42:42,987 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2024-10-24 00:42:42,987 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 00:42:42,988 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 00:42:43,006 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-10-24 00:42:43,188 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 00:42:43,189 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 00:42:43,189 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 00:42:43,189 INFO L85 PathProgramCache]: Analyzing trace with hash 1446768123, now seen corresponding path program 1 times [2024-10-24 00:42:43,189 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 00:42:43,189 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1123429089] [2024-10-24 00:42:43,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 00:42:43,190 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 00:42:43,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:43,302 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 00:42:43,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:43,316 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 00:42:43,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:43,320 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 00:42:43,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:43,322 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-24 00:42:43,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:43,325 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-24 00:42:43,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:43,329 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-24 00:42:43,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:43,341 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-10-24 00:42:43,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:43,352 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-10-24 00:42:43,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:43,354 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-24 00:42:43,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:43,356 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-24 00:42:43,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:43,358 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-10-24 00:42:43,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:43,359 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-10-24 00:42:43,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:43,360 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 00:42:43,361 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 00:42:43,361 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1123429089] [2024-10-24 00:42:43,361 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1123429089] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 00:42:43,361 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 00:42:43,361 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-10-24 00:42:43,361 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [114847927] [2024-10-24 00:42:43,361 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 00:42:43,362 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-24 00:42:43,362 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 00:42:43,362 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-24 00:42:43,363 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-10-24 00:42:43,363 INFO L87 Difference]: Start difference. First operand 93854 states and 159796 transitions. Second operand has 9 states, 9 states have (on average 8.0) internal successors, (72), 5 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 00:42:48,691 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 00:42:48,691 INFO L93 Difference]: Finished difference Result 183137 states and 318387 transitions. [2024-10-24 00:42:48,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-10-24 00:42:48,692 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.0) internal successors, (72), 5 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 00:42:48,692 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 00:42:49,417 INFO L225 Difference]: With dead ends: 183137 [2024-10-24 00:42:49,417 INFO L226 Difference]: Without dead ends: 183019 [2024-10-24 00:42:49,489 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 159 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=210, Invalid=546, Unknown=0, NotChecked=0, Total=756 [2024-10-24 00:42:49,490 INFO L432 NwaCegarLoop]: 166 mSDtfsCounter, 1303 mSDsluCounter, 814 mSDsCounter, 0 mSdLazyCounter, 1548 mSolverCounterSat, 381 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1318 SdHoareTripleChecker+Valid, 980 SdHoareTripleChecker+Invalid, 1929 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 381 IncrementalHoareTripleChecker+Valid, 1548 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-10-24 00:42:49,490 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1318 Valid, 980 Invalid, 1929 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [381 Valid, 1548 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-10-24 00:42:49,606 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 183019 states. [2024-10-24 00:42:55,523 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 183019 to 182731. [2024-10-24 00:42:55,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 182731 states, 152910 states have (on average 1.6192269962723171) internal successors, (247596), 152919 states have internal predecessors, (247596), 29770 states have call successors, (29770), 37 states have call predecessors, (29770), 50 states have return successors, (31972), 29774 states have call predecessors, (31972), 29766 states have call successors, (31972) [2024-10-24 00:42:56,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182731 states to 182731 states and 309338 transitions. [2024-10-24 00:42:56,337 INFO L78 Accepts]: Start accepts. Automaton has 182731 states and 309338 transitions. Word has length 114 [2024-10-24 00:42:56,337 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 00:42:56,337 INFO L471 AbstractCegarLoop]: Abstraction has 182731 states and 309338 transitions. [2024-10-24 00:42:56,338 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.0) internal successors, (72), 5 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 00:42:56,338 INFO L276 IsEmpty]: Start isEmpty. Operand 182731 states and 309338 transitions. [2024-10-24 00:42:56,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2024-10-24 00:42:56,364 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 00:42:56,364 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 00:42:56,364 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-10-24 00:42:56,364 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 00:42:56,365 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 00:42:56,365 INFO L85 PathProgramCache]: Analyzing trace with hash -1801008313, now seen corresponding path program 1 times [2024-10-24 00:42:56,365 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 00:42:56,365 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [65638994] [2024-10-24 00:42:56,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 00:42:56,365 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 00:42:56,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:56,485 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 00:42:56,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:56,499 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 00:42:56,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:56,501 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 00:42:56,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:56,503 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-24 00:42:56,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:56,505 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-24 00:42:56,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:56,507 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-24 00:42:56,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:56,520 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-10-24 00:42:56,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:56,533 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-10-24 00:42:56,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:56,536 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-24 00:42:56,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:56,538 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-24 00:42:56,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:56,564 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-10-24 00:42:56,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:56,567 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-10-24 00:42:56,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:56,572 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 00:42:56,572 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 00:42:56,573 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [65638994] [2024-10-24 00:42:56,573 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [65638994] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 00:42:56,573 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 00:42:56,573 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-10-24 00:42:56,573 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2034593201] [2024-10-24 00:42:56,573 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 00:42:56,573 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-10-24 00:42:56,573 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 00:42:56,574 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-10-24 00:42:56,574 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=133, Unknown=0, NotChecked=0, Total=156 [2024-10-24 00:42:56,574 INFO L87 Difference]: Start difference. First operand 182731 states and 309338 transitions. Second operand has 13 states, 11 states have (on average 6.545454545454546) internal successors, (72), 8 states have internal predecessors, (72), 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)