./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/email_spec0_product37.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 61a67961 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/email_spec0_product37.cil.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 9dc54d5213c4407313cf4404e06f4e3ced3af047edaa52f6d33441570abdeda7 --- Real Ultimate output --- This is Ultimate 0.2.5-wip.fs.cvc5-61a6796-m [2024-10-14 02:51:09,938 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-14 02:51:10,016 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-14 02:51:10,020 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-14 02:51:10,021 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-14 02:51:10,053 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-14 02:51:10,053 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-14 02:51:10,054 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-14 02:51:10,054 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-14 02:51:10,055 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-14 02:51:10,055 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-14 02:51:10,055 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-14 02:51:10,056 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-14 02:51:10,056 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-14 02:51:10,057 INFO L153 SettingsManager]: * Use SBE=true [2024-10-14 02:51:10,058 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-14 02:51:10,058 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-14 02:51:10,059 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-14 02:51:10,059 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-14 02:51:10,059 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-14 02:51:10,059 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-14 02:51:10,062 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-14 02:51:10,063 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-14 02:51:10,063 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-14 02:51:10,063 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-14 02:51:10,064 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-14 02:51:10,064 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-14 02:51:10,064 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-14 02:51:10,065 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-14 02:51:10,065 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-14 02:51:10,065 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-14 02:51:10,066 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-14 02:51:10,066 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 02:51:10,066 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-14 02:51:10,067 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-14 02:51:10,067 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-14 02:51:10,067 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-14 02:51:10,068 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-14 02:51:10,068 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-14 02:51:10,068 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-14 02:51:10,068 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-14 02:51:10,069 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-14 02:51:10,069 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9dc54d5213c4407313cf4404e06f4e3ced3af047edaa52f6d33441570abdeda7 [2024-10-14 02:51:10,336 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-14 02:51:10,364 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-14 02:51:10,367 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-14 02:51:10,368 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-14 02:51:10,369 INFO L274 PluginConnector]: CDTParser initialized [2024-10-14 02:51:10,370 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/email_spec0_product37.cil.c [2024-10-14 02:51:11,855 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-14 02:51:12,152 INFO L384 CDTParser]: Found 1 translation units. [2024-10-14 02:51:12,153 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/email_spec0_product37.cil.c [2024-10-14 02:51:12,178 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ef3ed4ce1/6718ffe4e88c483499db4d9837d5f9f5/FLAG5a6d8bffb [2024-10-14 02:51:12,191 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ef3ed4ce1/6718ffe4e88c483499db4d9837d5f9f5 [2024-10-14 02:51:12,194 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-14 02:51:12,195 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-14 02:51:12,196 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-14 02:51:12,196 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-14 02:51:12,201 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-14 02:51:12,201 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 02:51:12" (1/1) ... [2024-10-14 02:51:12,202 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@20ec42b6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:51:12, skipping insertion in model container [2024-10-14 02:51:12,203 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 02:51:12" (1/1) ... [2024-10-14 02:51:12,264 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-14 02:51:12,438 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/email_spec0_product37.cil.c[1542,1555] [2024-10-14 02:51:12,773 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 02:51:12,790 INFO L200 MainTranslator]: Completed pre-run [2024-10-14 02:51:12,801 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [48] [2024-10-14 02:51:12,802 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [57] [2024-10-14 02:51:12,803 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"ClientLib.i","") [384] [2024-10-14 02:51:12,803 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Client.i","") [1455] [2024-10-14 02:51:12,803 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [1686] [2024-10-14 02:51:12,803 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Util.i","") [1721] [2024-10-14 02:51:12,803 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"EmailLib.i","") [1738] [2024-10-14 02:51:12,803 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [2146] [2024-10-14 02:51:12,804 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Email.i","") [2512] [2024-10-14 02:51:12,804 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"DecryptForward_spec.i","") [2576] [2024-10-14 02:51:12,806 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [2595] [2024-10-14 02:51:12,811 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/email_spec0_product37.cil.c[1542,1555] [2024-10-14 02:51:12,922 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 02:51:12,959 INFO L204 MainTranslator]: Completed translation [2024-10-14 02:51:12,959 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:51:12 WrapperNode [2024-10-14 02:51:12,960 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-14 02:51:12,961 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-14 02:51:12,961 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-14 02:51:12,961 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-14 02:51:12,966 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:51:12" (1/1) ... [2024-10-14 02:51:12,987 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:51:12" (1/1) ... [2024-10-14 02:51:13,064 INFO L138 Inliner]: procedures = 124, calls = 170, calls flagged for inlining = 51, calls inlined = 46, statements flattened = 834 [2024-10-14 02:51:13,065 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-14 02:51:13,065 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-14 02:51:13,065 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-14 02:51:13,066 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-14 02:51:13,083 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:51:12" (1/1) ... [2024-10-14 02:51:13,084 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:51:12" (1/1) ... [2024-10-14 02:51:13,093 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:51:12" (1/1) ... [2024-10-14 02:51:13,159 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]. [2024-10-14 02:51:13,159 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:51:12" (1/1) ... [2024-10-14 02:51:13,159 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:51:12" (1/1) ... [2024-10-14 02:51:13,177 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:51:12" (1/1) ... [2024-10-14 02:51:13,188 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:51:12" (1/1) ... [2024-10-14 02:51:13,191 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:51:12" (1/1) ... [2024-10-14 02:51:13,194 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:51:12" (1/1) ... [2024-10-14 02:51:13,200 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-14 02:51:13,201 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-14 02:51:13,201 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-14 02:51:13,201 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-14 02:51:13,202 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:51:12" (1/1) ... [2024-10-14 02:51:13,215 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 02:51:13,225 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 02:51:13,240 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) [2024-10-14 02:51:13,243 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 [2024-10-14 02:51:13,286 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2024-10-14 02:51:13,287 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2024-10-14 02:51:13,287 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2024-10-14 02:51:13,287 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2024-10-14 02:51:13,287 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2024-10-14 02:51:13,288 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2024-10-14 02:51:13,288 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2024-10-14 02:51:13,288 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2024-10-14 02:51:13,288 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2024-10-14 02:51:13,288 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2024-10-14 02:51:13,288 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2024-10-14 02:51:13,289 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2024-10-14 02:51:13,289 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2024-10-14 02:51:13,289 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2024-10-14 02:51:13,289 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2024-10-14 02:51:13,289 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2024-10-14 02:51:13,289 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-14 02:51:13,290 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2024-10-14 02:51:13,290 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2024-10-14 02:51:13,290 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2024-10-14 02:51:13,290 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2024-10-14 02:51:13,290 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2024-10-14 02:51:13,290 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2024-10-14 02:51:13,291 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2024-10-14 02:51:13,291 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2024-10-14 02:51:13,291 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2024-10-14 02:51:13,291 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2024-10-14 02:51:13,291 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2024-10-14 02:51:13,291 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2024-10-14 02:51:13,292 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-14 02:51:13,292 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-10-14 02:51:13,292 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-10-14 02:51:13,292 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-10-14 02:51:13,292 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2024-10-14 02:51:13,292 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2024-10-14 02:51:13,292 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-14 02:51:13,293 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-14 02:51:13,459 INFO L238 CfgBuilder]: Building ICFG [2024-10-14 02:51:13,461 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-14 02:51:14,143 INFO L? ?]: Removed 326 outVars from TransFormulas that were not future-live. [2024-10-14 02:51:14,144 INFO L287 CfgBuilder]: Performing block encoding [2024-10-14 02:51:14,211 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-14 02:51:14,213 INFO L314 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-14 02:51:14,213 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 02:51:14 BoogieIcfgContainer [2024-10-14 02:51:14,213 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-14 02:51:14,216 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-14 02:51:14,216 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-14 02:51:14,219 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-14 02:51:14,220 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 02:51:12" (1/3) ... [2024-10-14 02:51:14,221 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e1e993d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 02:51:14, skipping insertion in model container [2024-10-14 02:51:14,221 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:51:12" (2/3) ... [2024-10-14 02:51:14,221 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e1e993d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 02:51:14, skipping insertion in model container [2024-10-14 02:51:14,222 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 02:51:14" (3/3) ... [2024-10-14 02:51:14,224 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec0_product37.cil.c [2024-10-14 02:51:14,241 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-14 02:51:14,242 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-14 02:51:14,325 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-14 02:51:14,332 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;@34ca5e4e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-14 02:51:14,333 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-14 02:51:14,339 INFO L276 IsEmpty]: Start isEmpty. Operand has 234 states, 177 states have (on average 1.5932203389830508) internal successors, (282), 179 states have internal predecessors, (282), 40 states have call successors, (40), 15 states have call predecessors, (40), 15 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40) [2024-10-14 02:51:14,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2024-10-14 02:51:14,362 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 02:51:14,364 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 02:51:14,365 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 02:51:14,371 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 02:51:14,372 INFO L85 PathProgramCache]: Analyzing trace with hash 740656969, now seen corresponding path program 1 times [2024-10-14 02:51:14,380 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 02:51:14,380 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [415677316] [2024-10-14 02:51:14,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 02:51:14,381 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 02:51:14,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:51:14,937 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 02:51:14,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:51:14,959 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 02:51:14,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:51:14,964 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 02:51:14,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:51:15,009 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-14 02:51:15,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:51:15,017 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-14 02:51:15,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:51:15,025 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-14 02:51:15,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:51:15,043 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-10-14 02:51:15,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:51:15,059 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-10-14 02:51:15,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:51:15,063 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-14 02:51:15,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:51:15,066 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-10-14 02:51:15,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:51:15,071 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-10-14 02:51:15,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:51:15,075 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-10-14 02:51:15,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:51:15,081 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2024-10-14 02:51:15,082 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 02:51:15,082 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [415677316] [2024-10-14 02:51:15,083 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [415677316] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 02:51:15,083 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [384952776] [2024-10-14 02:51:15,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 02:51:15,084 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 02:51:15,084 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 02:51:15,086 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) [2024-10-14 02:51:15,109 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-14 02:51:15,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:51:15,441 INFO L255 TraceCheckSpWp]: Trace formula consists of 868 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-10-14 02:51:15,451 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 02:51:15,475 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2024-10-14 02:51:15,478 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-14 02:51:15,478 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [384952776] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 02:51:15,478 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-14 02:51:15,479 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [9] total 9 [2024-10-14 02:51:15,481 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [254647068] [2024-10-14 02:51:15,481 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 02:51:15,487 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-14 02:51:15,487 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 02:51:15,516 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-14 02:51:15,517 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-10-14 02:51:15,521 INFO L87 Difference]: Start difference. First operand has 234 states, 177 states have (on average 1.5932203389830508) internal successors, (282), 179 states have internal predecessors, (282), 40 states have call successors, (40), 15 states have call predecessors, (40), 15 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40) Second operand has 2 states, 2 states have (on average 22.0) internal successors, (44), 2 states have internal predecessors, (44), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-10-14 02:51:15,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 02:51:15,615 INFO L93 Difference]: Finished difference Result 319 states and 480 transitions. [2024-10-14 02:51:15,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-14 02:51:15,618 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 22.0) internal successors, (44), 2 states have internal predecessors, (44), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 88 [2024-10-14 02:51:15,618 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 02:51:15,633 INFO L225 Difference]: With dead ends: 319 [2024-10-14 02:51:15,634 INFO L226 Difference]: Without dead ends: 231 [2024-10-14 02:51:15,637 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 108 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-10-14 02:51:15,640 INFO L432 NwaCegarLoop]: 343 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 343 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 02:51:15,641 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 343 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 02:51:15,659 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 231 states. [2024-10-14 02:51:15,691 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 231 to 231. [2024-10-14 02:51:15,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 231 states, 175 states have (on average 1.5714285714285714) internal successors, (275), 176 states have internal predecessors, (275), 40 states have call successors, (40), 15 states have call predecessors, (40), 15 states have return successors, (39), 39 states have call predecessors, (39), 39 states have call successors, (39) [2024-10-14 02:51:15,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 231 states to 231 states and 354 transitions. [2024-10-14 02:51:15,699 INFO L78 Accepts]: Start accepts. Automaton has 231 states and 354 transitions. Word has length 88 [2024-10-14 02:51:15,700 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 02:51:15,701 INFO L471 AbstractCegarLoop]: Abstraction has 231 states and 354 transitions. [2024-10-14 02:51:15,701 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 22.0) internal successors, (44), 2 states have internal predecessors, (44), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-10-14 02:51:15,701 INFO L276 IsEmpty]: Start isEmpty. Operand 231 states and 354 transitions. [2024-10-14 02:51:15,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2024-10-14 02:51:15,707 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 02:51:15,707 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 02:51:15,726 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-10-14 02:51:15,908 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 [2024-10-14 02:51:15,909 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 02:51:15,909 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 02:51:15,909 INFO L85 PathProgramCache]: Analyzing trace with hash -717797368, now seen corresponding path program 1 times [2024-10-14 02:51:15,909 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 02:51:15,910 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1874014938] [2024-10-14 02:51:15,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 02:51:15,910 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 02:51:15,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:51:16,063 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 02:51:16,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:51:16,076 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 02:51:16,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:51:16,080 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 02:51:16,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:51:16,104 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-14 02:51:16,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:51:16,109 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-14 02:51:16,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:51:16,112 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-14 02:51:16,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:51:16,126 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-10-14 02:51:16,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:51:16,140 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-10-14 02:51:16,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:51:16,143 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-10-14 02:51:16,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:51:16,145 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-10-14 02:51:16,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:51:16,148 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-10-14 02:51:16,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:51:16,150 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-10-14 02:51:16,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:51:16,155 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2024-10-14 02:51:16,155 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 02:51:16,155 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1874014938] [2024-10-14 02:51:16,155 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1874014938] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 02:51:16,155 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [359956145] [2024-10-14 02:51:16,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 02:51:16,156 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 02:51:16,156 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 02:51:16,158 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) [2024-10-14 02:51:16,159 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-14 02:51:16,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:51:16,431 INFO L255 TraceCheckSpWp]: Trace formula consists of 869 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-14 02:51:16,435 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 02:51:16,459 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2024-10-14 02:51:16,459 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-14 02:51:16,459 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [359956145] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 02:51:16,459 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-14 02:51:16,459 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2024-10-14 02:51:16,460 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [282017908] [2024-10-14 02:51:16,460 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 02:51:16,461 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 02:51:16,461 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 02:51:16,462 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 02:51:16,462 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-10-14 02:51:16,462 INFO L87 Difference]: Start difference. First operand 231 states and 354 transitions. Second operand has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-10-14 02:51:16,527 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 02:51:16,527 INFO L93 Difference]: Finished difference Result 315 states and 467 transitions. [2024-10-14 02:51:16,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 02:51:16,528 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 89 [2024-10-14 02:51:16,528 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 02:51:16,532 INFO L225 Difference]: With dead ends: 315 [2024-10-14 02:51:16,532 INFO L226 Difference]: Without dead ends: 233 [2024-10-14 02:51:16,533 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 108 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-10-14 02:51:16,535 INFO L432 NwaCegarLoop]: 340 mSDtfsCounter, 0 mSDsluCounter, 339 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 679 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 02:51:16,535 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 679 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 02:51:16,537 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 233 states. [2024-10-14 02:51:16,552 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 233 to 233. [2024-10-14 02:51:16,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 233 states, 177 states have (on average 1.5649717514124293) internal successors, (277), 178 states have internal predecessors, (277), 40 states have call successors, (40), 15 states have call predecessors, (40), 15 states have return successors, (39), 39 states have call predecessors, (39), 39 states have call successors, (39) [2024-10-14 02:51:16,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 233 states to 233 states and 356 transitions. [2024-10-14 02:51:16,558 INFO L78 Accepts]: Start accepts. Automaton has 233 states and 356 transitions. Word has length 89 [2024-10-14 02:51:16,558 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 02:51:16,558 INFO L471 AbstractCegarLoop]: Abstraction has 233 states and 356 transitions. [2024-10-14 02:51:16,559 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-10-14 02:51:16,559 INFO L276 IsEmpty]: Start isEmpty. Operand 233 states and 356 transitions. [2024-10-14 02:51:16,562 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2024-10-14 02:51:16,563 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 02:51:16,564 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 02:51:16,579 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-10-14 02:51:16,764 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 [2024-10-14 02:51:16,765 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 02:51:16,765 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 02:51:16,765 INFO L85 PathProgramCache]: Analyzing trace with hash 1491998209, now seen corresponding path program 1 times [2024-10-14 02:51:16,766 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 02:51:16,767 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [478398196] [2024-10-14 02:51:16,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 02:51:16,767 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 02:51:16,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:51:17,007 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 02:51:17,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:51:17,020 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 02:51:17,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:51:17,023 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 02:51:17,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:51:17,044 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-14 02:51:17,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:51:17,048 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-14 02:51:17,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:51:17,051 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-14 02:51:17,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:51:17,063 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-14 02:51:17,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:51:17,076 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-10-14 02:51:17,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:51:17,079 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-10-14 02:51:17,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:51:17,081 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-10-14 02:51:17,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:51:17,083 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-14 02:51:17,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:51:17,086 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-10-14 02:51:17,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:51:17,087 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-10-14 02:51:17,088 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 02:51:17,088 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [478398196] [2024-10-14 02:51:17,088 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [478398196] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 02:51:17,088 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [73075850] [2024-10-14 02:51:17,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 02:51:17,089 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 02:51:17,089 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 02:51:17,090 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) [2024-10-14 02:51:17,092 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-10-14 02:51:17,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:51:17,332 INFO L255 TraceCheckSpWp]: Trace formula consists of 893 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-14 02:51:17,336 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 02:51:17,354 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2024-10-14 02:51:17,354 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-14 02:51:17,354 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [73075850] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 02:51:17,354 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-14 02:51:17,354 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2024-10-14 02:51:17,355 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1793880925] [2024-10-14 02:51:17,355 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 02:51:17,358 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 02:51:17,358 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 02:51:17,359 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 02:51:17,359 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-10-14 02:51:17,359 INFO L87 Difference]: Start difference. First operand 233 states and 356 transitions. Second operand has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-10-14 02:51:17,426 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 02:51:17,426 INFO L93 Difference]: Finished difference Result 500 states and 778 transitions. [2024-10-14 02:51:17,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 02:51:17,427 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 96 [2024-10-14 02:51:17,427 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 02:51:17,430 INFO L225 Difference]: With dead ends: 500 [2024-10-14 02:51:17,432 INFO L226 Difference]: Without dead ends: 289 [2024-10-14 02:51:17,435 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 123 GetRequests, 115 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-10-14 02:51:17,436 INFO L432 NwaCegarLoop]: 345 mSDtfsCounter, 109 mSDsluCounter, 294 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 124 SdHoareTripleChecker+Valid, 639 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 02:51:17,436 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [124 Valid, 639 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 02:51:17,437 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 289 states. [2024-10-14 02:51:17,462 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 289 to 284. [2024-10-14 02:51:17,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 284 states, 217 states have (on average 1.5852534562211982) internal successors, (344), 218 states have internal predecessors, (344), 51 states have call successors, (51), 15 states have call predecessors, (51), 15 states have return successors, (50), 50 states have call predecessors, (50), 50 states have call successors, (50) [2024-10-14 02:51:17,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 284 states to 284 states and 445 transitions. [2024-10-14 02:51:17,465 INFO L78 Accepts]: Start accepts. Automaton has 284 states and 445 transitions. Word has length 96 [2024-10-14 02:51:17,465 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 02:51:17,465 INFO L471 AbstractCegarLoop]: Abstraction has 284 states and 445 transitions. [2024-10-14 02:51:17,465 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-10-14 02:51:17,466 INFO L276 IsEmpty]: Start isEmpty. Operand 284 states and 445 transitions. [2024-10-14 02:51:17,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2024-10-14 02:51:17,468 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 02:51:17,468 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 02:51:17,489 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-10-14 02:51:17,672 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 [2024-10-14 02:51:17,673 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 02:51:17,673 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 02:51:17,674 INFO L85 PathProgramCache]: Analyzing trace with hash 1762228474, now seen corresponding path program 1 times [2024-10-14 02:51:17,674 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 02:51:17,674 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [539449741] [2024-10-14 02:51:17,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 02:51:17,674 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 02:51:17,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:51:17,812 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 02:51:17,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:51:17,824 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 02:51:17,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:51:17,828 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 02:51:17,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:51:17,868 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-14 02:51:17,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:51:17,872 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-14 02:51:17,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:51:17,875 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-14 02:51:17,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:51:17,887 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-14 02:51:17,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:51:17,899 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-14 02:51:17,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:51:17,902 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-10-14 02:51:17,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:51:17,904 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-10-14 02:51:17,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:51:17,906 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-10-14 02:51:17,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:51:17,908 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-10-14 02:51:17,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:51:17,910 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-10-14 02:51:17,911 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 02:51:17,911 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [539449741] [2024-10-14 02:51:17,911 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [539449741] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 02:51:17,911 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [960859301] [2024-10-14 02:51:17,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 02:51:17,911 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 02:51:17,912 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 02:51:17,913 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) [2024-10-14 02:51:17,914 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-10-14 02:51:18,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:51:18,174 INFO L255 TraceCheckSpWp]: Trace formula consists of 898 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-10-14 02:51:18,178 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 02:51:18,246 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-10-14 02:51:18,247 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-14 02:51:18,247 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [960859301] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 02:51:18,247 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-14 02:51:18,247 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 12 [2024-10-14 02:51:18,248 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [734648506] [2024-10-14 02:51:18,248 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 02:51:18,248 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 02:51:18,248 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 02:51:18,249 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 02:51:18,249 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2024-10-14 02:51:18,249 INFO L87 Difference]: Start difference. First operand 284 states and 445 transitions. Second operand has 5 states, 4 states have (on average 15.25) internal successors, (61), 5 states have internal predecessors, (61), 3 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) [2024-10-14 02:51:18,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 02:51:18,342 INFO L93 Difference]: Finished difference Result 563 states and 884 transitions. [2024-10-14 02:51:18,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-14 02:51:18,343 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 15.25) internal successors, (61), 5 states have internal predecessors, (61), 3 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) Word has length 97 [2024-10-14 02:51:18,343 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 02:51:18,347 INFO L225 Difference]: With dead ends: 563 [2024-10-14 02:51:18,348 INFO L226 Difference]: Without dead ends: 286 [2024-10-14 02:51:18,349 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 124 GetRequests, 114 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2024-10-14 02:51:18,350 INFO L432 NwaCegarLoop]: 332 mSDtfsCounter, 2 mSDsluCounter, 985 mSDsCounter, 0 mSdLazyCounter, 93 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 1317 SdHoareTripleChecker+Invalid, 93 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 93 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 02:51:18,353 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 1317 Invalid, 93 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 93 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 02:51:18,354 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 286 states. [2024-10-14 02:51:18,372 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 286 to 286. [2024-10-14 02:51:18,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 286 states, 218 states have (on average 1.5825688073394495) internal successors, (345), 220 states have internal predecessors, (345), 51 states have call successors, (51), 15 states have call predecessors, (51), 16 states have return successors, (52), 50 states have call predecessors, (52), 50 states have call successors, (52) [2024-10-14 02:51:18,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 286 states to 286 states and 448 transitions. [2024-10-14 02:51:18,375 INFO L78 Accepts]: Start accepts. Automaton has 286 states and 448 transitions. Word has length 97 [2024-10-14 02:51:18,375 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 02:51:18,375 INFO L471 AbstractCegarLoop]: Abstraction has 286 states and 448 transitions. [2024-10-14 02:51:18,375 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 15.25) internal successors, (61), 5 states have internal predecessors, (61), 3 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) [2024-10-14 02:51:18,375 INFO L276 IsEmpty]: Start isEmpty. Operand 286 states and 448 transitions. [2024-10-14 02:51:18,377 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2024-10-14 02:51:18,377 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 02:51:18,378 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 02:51:18,395 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-10-14 02:51:18,581 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 [2024-10-14 02:51:18,582 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 02:51:18,582 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 02:51:18,582 INFO L85 PathProgramCache]: Analyzing trace with hash 1397427171, now seen corresponding path program 1 times [2024-10-14 02:51:18,582 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 02:51:18,582 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1107446167] [2024-10-14 02:51:18,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 02:51:18,583 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 02:51:18,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:51:18,707 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 02:51:18,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:51:18,720 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 02:51:18,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:51:18,724 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 02:51:18,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:51:18,749 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-14 02:51:18,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:51:18,774 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-10-14 02:51:18,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:51:18,778 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-10-14 02:51:18,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:51:18,794 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-10-14 02:51:18,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:51:18,809 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-14 02:51:18,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:51:18,812 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-10-14 02:51:18,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:51:18,815 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-14 02:51:18,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:51:18,817 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-14 02:51:18,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:51:18,819 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-14 02:51:18,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:51:18,821 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-10-14 02:51:18,821 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 02:51:18,821 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1107446167] [2024-10-14 02:51:18,821 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1107446167] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 02:51:18,821 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1040671513] [2024-10-14 02:51:18,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 02:51:18,822 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 02:51:18,822 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 02:51:18,823 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) [2024-10-14 02:51:18,825 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-10-14 02:51:19,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:51:19,073 INFO L255 TraceCheckSpWp]: Trace formula consists of 899 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-10-14 02:51:19,076 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 02:51:19,173 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-10-14 02:51:19,173 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-14 02:51:19,174 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1040671513] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 02:51:19,174 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-14 02:51:19,174 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [12] total 15 [2024-10-14 02:51:19,174 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [921032967] [2024-10-14 02:51:19,174 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 02:51:19,175 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 02:51:19,175 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 02:51:19,175 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 02:51:19,176 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=180, Unknown=0, NotChecked=0, Total=210 [2024-10-14 02:51:19,176 INFO L87 Difference]: Start difference. First operand 286 states and 448 transitions. Second operand has 5 states, 5 states have (on average 12.6) internal successors, (63), 5 states have internal predecessors, (63), 3 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2024-10-14 02:51:19,273 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 02:51:19,273 INFO L93 Difference]: Finished difference Result 565 states and 889 transitions. [2024-10-14 02:51:19,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-14 02:51:19,274 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 5 states have internal predecessors, (63), 3 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 98 [2024-10-14 02:51:19,274 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 02:51:19,277 INFO L225 Difference]: With dead ends: 565 [2024-10-14 02:51:19,277 INFO L226 Difference]: Without dead ends: 288 [2024-10-14 02:51:19,278 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 114 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=180, Unknown=0, NotChecked=0, Total=210 [2024-10-14 02:51:19,279 INFO L432 NwaCegarLoop]: 330 mSDtfsCounter, 2 mSDsluCounter, 973 mSDsCounter, 0 mSdLazyCounter, 105 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 1303 SdHoareTripleChecker+Invalid, 105 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 105 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 02:51:19,279 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 1303 Invalid, 105 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 105 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 02:51:19,280 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 288 states. [2024-10-14 02:51:19,291 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 288 to 288. [2024-10-14 02:51:19,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 288 states, 219 states have (on average 1.5799086757990868) internal successors, (346), 222 states have internal predecessors, (346), 51 states have call successors, (51), 15 states have call predecessors, (51), 17 states have return successors, (57), 50 states have call predecessors, (57), 50 states have call successors, (57) [2024-10-14 02:51:19,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 288 states to 288 states and 454 transitions. [2024-10-14 02:51:19,294 INFO L78 Accepts]: Start accepts. Automaton has 288 states and 454 transitions. Word has length 98 [2024-10-14 02:51:19,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 02:51:19,295 INFO L471 AbstractCegarLoop]: Abstraction has 288 states and 454 transitions. [2024-10-14 02:51:19,295 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 5 states have internal predecessors, (63), 3 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2024-10-14 02:51:19,295 INFO L276 IsEmpty]: Start isEmpty. Operand 288 states and 454 transitions. [2024-10-14 02:51:19,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2024-10-14 02:51:19,297 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 02:51:19,298 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 02:51:19,316 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-10-14 02:51:19,498 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 [2024-10-14 02:51:19,499 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 02:51:19,500 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 02:51:19,500 INFO L85 PathProgramCache]: Analyzing trace with hash 2012801472, now seen corresponding path program 1 times [2024-10-14 02:51:19,500 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 02:51:19,500 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1182330670] [2024-10-14 02:51:19,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 02:51:19,501 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 02:51:19,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:51:19,642 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 02:51:19,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:51:19,653 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 02:51:19,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:51:19,657 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 02:51:19,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:51:19,661 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-14 02:51:19,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:51:19,665 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-14 02:51:19,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:51:19,688 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-10-14 02:51:19,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:51:19,701 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-10-14 02:51:19,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:51:19,714 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-10-14 02:51:19,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:51:19,717 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-14 02:51:19,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:51:19,720 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-14 02:51:19,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:51:19,723 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-10-14 02:51:19,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:51:19,725 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-10-14 02:51:19,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:51:19,728 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-10-14 02:51:19,728 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 02:51:19,728 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1182330670] [2024-10-14 02:51:19,728 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1182330670] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 02:51:19,728 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 02:51:19,728 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-10-14 02:51:19,729 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [108456212] [2024-10-14 02:51:19,729 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 02:51:19,729 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-14 02:51:19,730 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 02:51:19,730 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-14 02:51:19,730 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-10-14 02:51:19,731 INFO L87 Difference]: Start difference. First operand 288 states and 454 transitions. Second operand has 9 states, 8 states have (on average 7.375) internal successors, (59), 5 states have internal predecessors, (59), 3 states have call successors, (14), 6 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) [2024-10-14 02:51:21,382 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 02:51:21,383 INFO L93 Difference]: Finished difference Result 678 states and 1078 transitions. [2024-10-14 02:51:21,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-10-14 02:51:21,383 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 7.375) internal successors, (59), 5 states have internal predecessors, (59), 3 states have call successors, (14), 6 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) Word has length 99 [2024-10-14 02:51:21,384 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 02:51:21,387 INFO L225 Difference]: With dead ends: 678 [2024-10-14 02:51:21,387 INFO L226 Difference]: Without dead ends: 409 [2024-10-14 02:51:21,388 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 [2024-10-14 02:51:21,389 INFO L432 NwaCegarLoop]: 166 mSDtfsCounter, 646 mSDsluCounter, 849 mSDsCounter, 0 mSdLazyCounter, 1800 mSolverCounterSat, 241 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 647 SdHoareTripleChecker+Valid, 1015 SdHoareTripleChecker+Invalid, 2041 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 241 IncrementalHoareTripleChecker+Valid, 1800 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-10-14 02:51:21,389 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [647 Valid, 1015 Invalid, 2041 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [241 Valid, 1800 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-10-14 02:51:21,390 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 409 states. [2024-10-14 02:51:21,414 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 409 to 288. [2024-10-14 02:51:21,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 288 states, 219 states have (on average 1.5799086757990868) internal successors, (346), 222 states have internal predecessors, (346), 51 states have call successors, (51), 15 states have call predecessors, (51), 17 states have return successors, (56), 50 states have call predecessors, (56), 50 states have call successors, (56) [2024-10-14 02:51:21,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 288 states to 288 states and 453 transitions. [2024-10-14 02:51:21,418 INFO L78 Accepts]: Start accepts. Automaton has 288 states and 453 transitions. Word has length 99 [2024-10-14 02:51:21,418 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 02:51:21,418 INFO L471 AbstractCegarLoop]: Abstraction has 288 states and 453 transitions. [2024-10-14 02:51:21,419 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 7.375) internal successors, (59), 5 states have internal predecessors, (59), 3 states have call successors, (14), 6 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) [2024-10-14 02:51:21,419 INFO L276 IsEmpty]: Start isEmpty. Operand 288 states and 453 transitions. [2024-10-14 02:51:21,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2024-10-14 02:51:21,422 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 02:51:21,422 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 02:51:21,422 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-14 02:51:21,422 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 02:51:21,422 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 02:51:21,423 INFO L85 PathProgramCache]: Analyzing trace with hash -1973452793, now seen corresponding path program 2 times [2024-10-14 02:51:21,423 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 02:51:21,423 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [260479100] [2024-10-14 02:51:21,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 02:51:21,423 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 02:51:21,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:51:21,550 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 02:51:21,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:51:21,561 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 02:51:21,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:51:21,564 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 02:51:21,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:51:21,566 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-14 02:51:21,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:51:21,569 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-14 02:51:21,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:51:21,589 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-14 02:51:21,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:51:21,604 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-10-14 02:51:21,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:51:21,616 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-10-14 02:51:21,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:51:21,618 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-10-14 02:51:21,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:51:21,623 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-10-14 02:51:21,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:51:21,625 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-10-14 02:51:21,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:51:21,628 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-10-14 02:51:21,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:51:21,633 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-10-14 02:51:21,633 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 02:51:21,633 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [260479100] [2024-10-14 02:51:21,633 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [260479100] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 02:51:21,633 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 02:51:21,634 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-10-14 02:51:21,634 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [22884093] [2024-10-14 02:51:21,634 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 02:51:21,634 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-14 02:51:21,634 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 02:51:21,635 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-14 02:51:21,635 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-10-14 02:51:21,635 INFO L87 Difference]: Start difference. First operand 288 states and 453 transitions. Second operand has 9 states, 8 states have (on average 7.5) internal successors, (60), 5 states have internal predecessors, (60), 3 states have call successors, (14), 6 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) [2024-10-14 02:51:23,100 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 02:51:23,101 INFO L93 Difference]: Finished difference Result 680 states and 1081 transitions. [2024-10-14 02:51:23,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-10-14 02:51:23,101 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 7.5) internal successors, (60), 5 states have internal predecessors, (60), 3 states have call successors, (14), 6 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) Word has length 100 [2024-10-14 02:51:23,101 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 02:51:23,104 INFO L225 Difference]: With dead ends: 680 [2024-10-14 02:51:23,104 INFO L226 Difference]: Without dead ends: 411 [2024-10-14 02:51:23,105 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 [2024-10-14 02:51:23,106 INFO L432 NwaCegarLoop]: 166 mSDtfsCounter, 642 mSDsluCounter, 849 mSDsCounter, 0 mSdLazyCounter, 1808 mSolverCounterSat, 241 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 643 SdHoareTripleChecker+Valid, 1015 SdHoareTripleChecker+Invalid, 2049 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 241 IncrementalHoareTripleChecker+Valid, 1808 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-10-14 02:51:23,106 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [643 Valid, 1015 Invalid, 2049 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [241 Valid, 1808 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-10-14 02:51:23,107 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 411 states. [2024-10-14 02:51:23,127 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 411 to 290. [2024-10-14 02:51:23,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 290 states, 220 states have (on average 1.5772727272727274) internal successors, (347), 224 states have internal predecessors, (347), 51 states have call successors, (51), 15 states have call predecessors, (51), 18 states have return successors, (58), 50 states have call predecessors, (58), 50 states have call successors, (58) [2024-10-14 02:51:23,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 290 states to 290 states and 456 transitions. [2024-10-14 02:51:23,131 INFO L78 Accepts]: Start accepts. Automaton has 290 states and 456 transitions. Word has length 100 [2024-10-14 02:51:23,131 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 02:51:23,131 INFO L471 AbstractCegarLoop]: Abstraction has 290 states and 456 transitions. [2024-10-14 02:51:23,131 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 7.5) internal successors, (60), 5 states have internal predecessors, (60), 3 states have call successors, (14), 6 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) [2024-10-14 02:51:23,131 INFO L276 IsEmpty]: Start isEmpty. Operand 290 states and 456 transitions. [2024-10-14 02:51:23,133 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-10-14 02:51:23,133 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 02:51:23,133 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 02:51:23,134 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-14 02:51:23,134 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 02:51:23,134 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 02:51:23,134 INFO L85 PathProgramCache]: Analyzing trace with hash 2070118437, now seen corresponding path program 1 times [2024-10-14 02:51:23,135 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 02:51:23,135 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [266249563] [2024-10-14 02:51:23,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 02:51:23,135 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 02:51:23,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:51:23,256 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 02:51:23,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:51:23,266 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 02:51:23,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:51:23,269 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 02:51:23,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:51:23,272 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-14 02:51:23,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:51:23,274 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-14 02:51:23,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:51:23,298 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-14 02:51:23,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:51:23,335 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-10-14 02:51:23,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:51:23,349 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-10-14 02:51:23,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:51:23,352 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-10-14 02:51:23,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:51:23,356 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-10-14 02:51:23,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:51:23,357 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-10-14 02:51:23,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:51:23,359 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-14 02:51:23,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:51:23,360 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-10-14 02:51:23,360 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 02:51:23,361 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [266249563] [2024-10-14 02:51:23,361 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [266249563] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 02:51:23,361 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 02:51:23,361 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-10-14 02:51:23,361 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1110428072] [2024-10-14 02:51:23,361 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 02:51:23,361 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-10-14 02:51:23,362 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 02:51:23,362 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-10-14 02:51:23,362 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2024-10-14 02:51:23,363 INFO L87 Difference]: Start difference. First operand 290 states and 456 transitions. Second operand has 12 states, 11 states have (on average 5.818181818181818) internal successors, (64), 8 states have internal predecessors, (64), 4 states have call successors, (14), 6 states have call predecessors, (14), 3 states have return successors, (12), 3 states have call predecessors, (12), 4 states have call successors, (12) [2024-10-14 02:51:25,382 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 02:51:25,382 INFO L93 Difference]: Finished difference Result 678 states and 1076 transitions. [2024-10-14 02:51:25,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-14 02:51:25,383 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 5.818181818181818) internal successors, (64), 8 states have internal predecessors, (64), 4 states have call successors, (14), 6 states have call predecessors, (14), 3 states have return successors, (12), 3 states have call predecessors, (12), 4 states have call successors, (12) Word has length 101 [2024-10-14 02:51:25,384 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 02:51:25,389 INFO L225 Difference]: With dead ends: 678 [2024-10-14 02:51:25,389 INFO L226 Difference]: Without dead ends: 411 [2024-10-14 02:51:25,390 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 [2024-10-14 02:51:25,391 INFO L432 NwaCegarLoop]: 164 mSDtfsCounter, 646 mSDsluCounter, 1244 mSDsCounter, 0 mSdLazyCounter, 2944 mSolverCounterSat, 246 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 647 SdHoareTripleChecker+Valid, 1408 SdHoareTripleChecker+Invalid, 3190 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 246 IncrementalHoareTripleChecker+Valid, 2944 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-10-14 02:51:25,392 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [647 Valid, 1408 Invalid, 3190 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [246 Valid, 2944 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-10-14 02:51:25,393 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 411 states. [2024-10-14 02:51:25,414 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 411 to 290. [2024-10-14 02:51:25,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 290 states, 220 states have (on average 1.5772727272727274) internal successors, (347), 224 states have internal predecessors, (347), 51 states have call successors, (51), 15 states have call predecessors, (51), 18 states have return successors, (57), 50 states have call predecessors, (57), 50 states have call successors, (57) [2024-10-14 02:51:25,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 290 states to 290 states and 455 transitions. [2024-10-14 02:51:25,418 INFO L78 Accepts]: Start accepts. Automaton has 290 states and 455 transitions. Word has length 101 [2024-10-14 02:51:25,418 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 02:51:25,418 INFO L471 AbstractCegarLoop]: Abstraction has 290 states and 455 transitions. [2024-10-14 02:51:25,419 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 5.818181818181818) internal successors, (64), 8 states have internal predecessors, (64), 4 states have call successors, (14), 6 states have call predecessors, (14), 3 states have return successors, (12), 3 states have call predecessors, (12), 4 states have call successors, (12) [2024-10-14 02:51:25,419 INFO L276 IsEmpty]: Start isEmpty. Operand 290 states and 455 transitions. [2024-10-14 02:51:25,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2024-10-14 02:51:25,421 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 02:51:25,421 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 02:51:25,421 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-14 02:51:25,421 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 02:51:25,422 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 02:51:25,422 INFO L85 PathProgramCache]: Analyzing trace with hash 1582730148, now seen corresponding path program 2 times [2024-10-14 02:51:25,422 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 02:51:25,422 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [753978633] [2024-10-14 02:51:25,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 02:51:25,422 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 02:51:25,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:51:25,531 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 02:51:25,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:51:25,542 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 02:51:25,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:51:25,546 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 02:51:25,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:51:25,548 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-14 02:51:25,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:51:25,551 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-14 02:51:25,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:51:25,575 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-14 02:51:25,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:51:25,621 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-14 02:51:25,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:51:25,661 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-10-14 02:51:25,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:51:25,664 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-10-14 02:51:25,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:51:25,666 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-10-14 02:51:25,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:51:25,667 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-10-14 02:51:25,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:51:25,669 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-10-14 02:51:25,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:51:25,671 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-10-14 02:51:25,671 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 02:51:25,671 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [753978633] [2024-10-14 02:51:25,672 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [753978633] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 02:51:25,672 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 02:51:25,672 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-10-14 02:51:25,672 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [643487124] [2024-10-14 02:51:25,672 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 02:51:25,673 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-10-14 02:51:25,673 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 02:51:25,674 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-10-14 02:51:25,674 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2024-10-14 02:51:25,674 INFO L87 Difference]: Start difference. First operand 290 states and 455 transitions. Second operand has 12 states, 11 states have (on average 5.909090909090909) internal successors, (65), 8 states have internal predecessors, (65), 4 states have call successors, (14), 6 states have call predecessors, (14), 3 states have return successors, (12), 3 states have call predecessors, (12), 4 states have call successors, (12) [2024-10-14 02:51:27,523 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 02:51:27,523 INFO L93 Difference]: Finished difference Result 680 states and 1082 transitions. [2024-10-14 02:51:27,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-14 02:51:27,523 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 5.909090909090909) internal successors, (65), 8 states have internal predecessors, (65), 4 states have call successors, (14), 6 states have call predecessors, (14), 3 states have return successors, (12), 3 states have call predecessors, (12), 4 states have call successors, (12) Word has length 102 [2024-10-14 02:51:27,524 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 02:51:27,526 INFO L225 Difference]: With dead ends: 680 [2024-10-14 02:51:27,526 INFO L226 Difference]: Without dead ends: 413 [2024-10-14 02:51:27,528 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 [2024-10-14 02:51:27,528 INFO L432 NwaCegarLoop]: 165 mSDtfsCounter, 642 mSDsluCounter, 1244 mSDsCounter, 0 mSdLazyCounter, 2975 mSolverCounterSat, 244 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 643 SdHoareTripleChecker+Valid, 1409 SdHoareTripleChecker+Invalid, 3219 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 244 IncrementalHoareTripleChecker+Valid, 2975 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-10-14 02:51:27,529 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [643 Valid, 1409 Invalid, 3219 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [244 Valid, 2975 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-10-14 02:51:27,529 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 413 states. [2024-10-14 02:51:27,551 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 413 to 292. [2024-10-14 02:51:27,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 292 states, 221 states have (on average 1.5746606334841629) internal successors, (348), 226 states have internal predecessors, (348), 51 states have call successors, (51), 15 states have call predecessors, (51), 19 states have return successors, (62), 50 states have call predecessors, (62), 50 states have call successors, (62) [2024-10-14 02:51:27,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 292 states to 292 states and 461 transitions. [2024-10-14 02:51:27,554 INFO L78 Accepts]: Start accepts. Automaton has 292 states and 461 transitions. Word has length 102 [2024-10-14 02:51:27,554 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 02:51:27,554 INFO L471 AbstractCegarLoop]: Abstraction has 292 states and 461 transitions. [2024-10-14 02:51:27,554 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 5.909090909090909) internal successors, (65), 8 states have internal predecessors, (65), 4 states have call successors, (14), 6 states have call predecessors, (14), 3 states have return successors, (12), 3 states have call predecessors, (12), 4 states have call successors, (12) [2024-10-14 02:51:27,554 INFO L276 IsEmpty]: Start isEmpty. Operand 292 states and 461 transitions. [2024-10-14 02:51:27,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2024-10-14 02:51:27,557 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 02:51:27,557 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 02:51:27,557 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-14 02:51:27,557 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 02:51:27,558 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 02:51:27,558 INFO L85 PathProgramCache]: Analyzing trace with hash -1684896438, now seen corresponding path program 1 times [2024-10-14 02:51:27,558 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 02:51:27,558 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1243977597] [2024-10-14 02:51:27,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 02:51:27,558 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 02:51:27,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:51:27,725 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 02:51:27,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:51:27,737 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 02:51:27,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:51:27,739 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 02:51:27,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:51:27,762 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-14 02:51:27,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:51:27,766 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-14 02:51:27,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:51:27,775 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-14 02:51:27,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:51:27,793 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-14 02:51:27,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:51:27,808 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-14 02:51:27,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:51:27,810 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-10-14 02:51:27,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:51:27,811 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-10-14 02:51:27,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:51:27,812 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-10-14 02:51:27,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:51:27,814 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2024-10-14 02:51:27,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:51:27,815 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2024-10-14 02:51:27,816 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 02:51:27,816 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1243977597] [2024-10-14 02:51:27,816 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1243977597] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 02:51:27,816 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [799717677] [2024-10-14 02:51:27,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 02:51:27,816 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 02:51:27,816 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 02:51:27,819 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) [2024-10-14 02:51:27,819 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-10-14 02:51:28,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:51:28,058 INFO L255 TraceCheckSpWp]: Trace formula consists of 904 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-14 02:51:28,062 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 02:51:28,101 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2024-10-14 02:51:28,101 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 02:51:28,195 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2024-10-14 02:51:28,196 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [799717677] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-14 02:51:28,196 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-14 02:51:28,196 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 4, 4] total 15 [2024-10-14 02:51:28,196 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1390809947] [2024-10-14 02:51:28,196 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-14 02:51:28,197 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-10-14 02:51:28,197 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 02:51:28,197 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-10-14 02:51:28,197 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=177, Unknown=0, NotChecked=0, Total=210 [2024-10-14 02:51:28,198 INFO L87 Difference]: Start difference. First operand 292 states and 461 transitions. Second operand has 15 states, 14 states have (on average 7.5) internal successors, (105), 11 states have internal predecessors, (105), 4 states have call successors, (30), 6 states have call predecessors, (30), 3 states have return successors, (22), 3 states have call predecessors, (22), 4 states have call successors, (22) [2024-10-14 02:51:30,471 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 02:51:30,471 INFO L93 Difference]: Finished difference Result 1029 states and 1728 transitions. [2024-10-14 02:51:30,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-10-14 02:51:30,472 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 7.5) internal successors, (105), 11 states have internal predecessors, (105), 4 states have call successors, (30), 6 states have call predecessors, (30), 3 states have return successors, (22), 3 states have call predecessors, (22), 4 states have call successors, (22) Word has length 103 [2024-10-14 02:51:30,472 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 02:51:30,476 INFO L225 Difference]: With dead ends: 1029 [2024-10-14 02:51:30,476 INFO L226 Difference]: Without dead ends: 763 [2024-10-14 02:51:30,478 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 255 GetRequests, 225 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 149 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=164, Invalid=828, Unknown=0, NotChecked=0, Total=992 [2024-10-14 02:51:30,478 INFO L432 NwaCegarLoop]: 165 mSDtfsCounter, 1575 mSDsluCounter, 1520 mSDsCounter, 0 mSdLazyCounter, 3428 mSolverCounterSat, 530 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1593 SdHoareTripleChecker+Valid, 1685 SdHoareTripleChecker+Invalid, 3958 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 530 IncrementalHoareTripleChecker+Valid, 3428 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-10-14 02:51:30,479 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1593 Valid, 1685 Invalid, 3958 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [530 Valid, 3428 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-10-14 02:51:30,480 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 763 states. [2024-10-14 02:51:30,513 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 763 to 627. [2024-10-14 02:51:30,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 627 states, 492 states have (on average 1.6280487804878048) internal successors, (801), 497 states have internal predecessors, (801), 115 states have call successors, (115), 15 states have call predecessors, (115), 19 states have return successors, (136), 114 states have call predecessors, (136), 114 states have call successors, (136) [2024-10-14 02:51:30,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 627 states to 627 states and 1052 transitions. [2024-10-14 02:51:30,518 INFO L78 Accepts]: Start accepts. Automaton has 627 states and 1052 transitions. Word has length 103 [2024-10-14 02:51:30,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 02:51:30,518 INFO L471 AbstractCegarLoop]: Abstraction has 627 states and 1052 transitions. [2024-10-14 02:51:30,518 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 7.5) internal successors, (105), 11 states have internal predecessors, (105), 4 states have call successors, (30), 6 states have call predecessors, (30), 3 states have return successors, (22), 3 states have call predecessors, (22), 4 states have call successors, (22) [2024-10-14 02:51:30,518 INFO L276 IsEmpty]: Start isEmpty. Operand 627 states and 1052 transitions. [2024-10-14 02:51:30,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-10-14 02:51:30,522 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 02:51:30,522 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] [2024-10-14 02:51:30,540 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-10-14 02:51:30,723 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 [2024-10-14 02:51:30,723 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 02:51:30,724 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 02:51:30,724 INFO L85 PathProgramCache]: Analyzing trace with hash -1339410134, now seen corresponding path program 1 times [2024-10-14 02:51:30,724 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 02:51:30,724 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1391989993] [2024-10-14 02:51:30,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 02:51:30,724 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 02:51:30,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:51:30,811 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 02:51:30,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:51:30,822 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 02:51:30,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:51:30,825 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 02:51:30,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:51:30,827 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-14 02:51:30,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:51:30,829 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-14 02:51:30,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:51:30,831 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-14 02:51:30,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:51:30,841 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-10-14 02:51:30,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:51:30,852 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-10-14 02:51:30,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:51:30,854 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-10-14 02:51:30,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:51:30,856 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-10-14 02:51:30,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:51:30,859 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-14 02:51:30,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:51:30,864 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-10-14 02:51:30,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:51:30,866 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2024-10-14 02:51:30,866 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 02:51:30,866 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1391989993] [2024-10-14 02:51:30,866 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1391989993] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 02:51:30,866 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 02:51:30,866 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-14 02:51:30,866 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [178894620] [2024-10-14 02:51:30,867 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 02:51:30,867 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-14 02:51:30,867 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 02:51:30,868 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-14 02:51:30,868 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-14 02:51:30,868 INFO L87 Difference]: Start difference. First operand 627 states and 1052 transitions. Second operand has 7 states, 7 states have (on average 9.285714285714286) internal successors, (65), 3 states have internal predecessors, (65), 2 states have call successors, (14), 6 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-10-14 02:51:32,144 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 02:51:32,145 INFO L93 Difference]: Finished difference Result 1624 states and 2787 transitions. [2024-10-14 02:51:32,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-14 02:51:32,145 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 [2024-10-14 02:51:32,145 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 02:51:32,151 INFO L225 Difference]: With dead ends: 1624 [2024-10-14 02:51:32,151 INFO L226 Difference]: Without dead ends: 1065 [2024-10-14 02:51:32,153 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 [2024-10-14 02:51:32,154 INFO L432 NwaCegarLoop]: 183 mSDtfsCounter, 748 mSDsluCounter, 600 mSDsCounter, 0 mSdLazyCounter, 1087 mSolverCounterSat, 295 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 764 SdHoareTripleChecker+Valid, 783 SdHoareTripleChecker+Invalid, 1382 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 295 IncrementalHoareTripleChecker+Valid, 1087 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-10-14 02:51:32,154 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [764 Valid, 783 Invalid, 1382 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [295 Valid, 1087 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-10-14 02:51:32,155 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1065 states. [2024-10-14 02:51:32,193 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1065 to 939. [2024-10-14 02:51:32,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 939 states, 740 states have (on average 1.6391891891891892) internal successors, (1213), 745 states have internal predecessors, (1213), 179 states have call successors, (179), 15 states have call predecessors, (179), 19 states have return successors, (210), 178 states have call predecessors, (210), 178 states have call successors, (210) [2024-10-14 02:51:32,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 939 states to 939 states and 1602 transitions. [2024-10-14 02:51:32,200 INFO L78 Accepts]: Start accepts. Automaton has 939 states and 1602 transitions. Word has length 107 [2024-10-14 02:51:32,200 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 02:51:32,200 INFO L471 AbstractCegarLoop]: Abstraction has 939 states and 1602 transitions. [2024-10-14 02:51:32,200 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) [2024-10-14 02:51:32,201 INFO L276 IsEmpty]: Start isEmpty. Operand 939 states and 1602 transitions. [2024-10-14 02:51:32,205 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-10-14 02:51:32,205 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 02:51:32,205 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] [2024-10-14 02:51:32,205 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-14 02:51:32,205 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 02:51:32,206 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 02:51:32,206 INFO L85 PathProgramCache]: Analyzing trace with hash 1124666228, now seen corresponding path program 1 times [2024-10-14 02:51:32,206 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 02:51:32,206 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1750453521] [2024-10-14 02:51:32,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 02:51:32,206 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 02:51:32,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:51:32,256 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 02:51:32,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:51:32,266 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 02:51:32,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:51:32,269 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 02:51:32,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:51:32,271 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-14 02:51:32,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:51:32,273 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-14 02:51:32,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:51:32,275 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-14 02:51:32,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:51:32,284 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-14 02:51:32,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:51:32,293 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-10-14 02:51:32,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:51:32,295 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-10-14 02:51:32,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:51:32,297 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-10-14 02:51:32,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:51:32,298 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-10-14 02:51:32,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:51:32,300 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-10-14 02:51:32,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:51:32,301 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2024-10-14 02:51:32,301 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 02:51:32,301 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1750453521] [2024-10-14 02:51:32,301 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1750453521] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 02:51:32,302 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 02:51:32,302 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-14 02:51:32,302 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1935384929] [2024-10-14 02:51:32,302 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 02:51:32,302 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-14 02:51:32,302 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 02:51:32,303 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-14 02:51:32,303 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-14 02:51:32,303 INFO L87 Difference]: Start difference. First operand 939 states and 1602 transitions. Second operand has 7 states, 7 states have (on average 9.428571428571429) internal successors, (66), 3 states have internal predecessors, (66), 2 states have call successors, (14), 6 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-10-14 02:51:33,538 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 02:51:33,539 INFO L93 Difference]: Finished difference Result 2393 states and 4135 transitions. [2024-10-14 02:51:33,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-14 02:51:33,539 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 [2024-10-14 02:51:33,540 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 02:51:33,550 INFO L225 Difference]: With dead ends: 2393 [2024-10-14 02:51:33,550 INFO L226 Difference]: Without dead ends: 1572 [2024-10-14 02:51:33,554 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 [2024-10-14 02:51:33,554 INFO L432 NwaCegarLoop]: 168 mSDtfsCounter, 744 mSDsluCounter, 577 mSDsCounter, 0 mSdLazyCounter, 1062 mSolverCounterSat, 299 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 759 SdHoareTripleChecker+Valid, 745 SdHoareTripleChecker+Invalid, 1361 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 299 IncrementalHoareTripleChecker+Valid, 1062 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-10-14 02:51:33,555 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [759 Valid, 745 Invalid, 1361 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [299 Valid, 1062 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-10-14 02:51:33,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1572 states. [2024-10-14 02:51:33,646 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1572 to 1446. [2024-10-14 02:51:33,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1446 states, 1152 states have (on average 1.6432291666666667) internal successors, (1893), 1157 states have internal predecessors, (1893), 274 states have call successors, (274), 15 states have call predecessors, (274), 19 states have return successors, (305), 273 states have call predecessors, (305), 273 states have call successors, (305) [2024-10-14 02:51:33,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1446 states to 1446 states and 2472 transitions. [2024-10-14 02:51:33,660 INFO L78 Accepts]: Start accepts. Automaton has 1446 states and 2472 transitions. Word has length 108 [2024-10-14 02:51:33,660 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 02:51:33,661 INFO L471 AbstractCegarLoop]: Abstraction has 1446 states and 2472 transitions. [2024-10-14 02:51:33,661 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) [2024-10-14 02:51:33,661 INFO L276 IsEmpty]: Start isEmpty. Operand 1446 states and 2472 transitions. [2024-10-14 02:51:33,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-10-14 02:51:33,669 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 02:51:33,670 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] [2024-10-14 02:51:33,670 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-10-14 02:51:33,670 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 02:51:33,670 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 02:51:33,670 INFO L85 PathProgramCache]: Analyzing trace with hash -2103438152, now seen corresponding path program 1 times [2024-10-14 02:51:33,670 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 02:51:33,670 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [495261133] [2024-10-14 02:51:33,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 02:51:33,671 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 02:51:33,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:51:33,730 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 02:51:33,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:51:33,741 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 02:51:33,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:51:33,744 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 02:51:33,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:51:33,747 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-14 02:51:33,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:51:33,749 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-14 02:51:33,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:51:33,751 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-14 02:51:33,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:51:33,761 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-10-14 02:51:33,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:51:33,772 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-14 02:51:33,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:51:33,774 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-10-14 02:51:33,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:51:33,779 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-14 02:51:33,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:51:33,781 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2024-10-14 02:51:33,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:51:33,782 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-10-14 02:51:33,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:51:33,783 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2024-10-14 02:51:33,785 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 02:51:33,785 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [495261133] [2024-10-14 02:51:33,785 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [495261133] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 02:51:33,785 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 02:51:33,785 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-14 02:51:33,785 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [33902496] [2024-10-14 02:51:33,785 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 02:51:33,786 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-14 02:51:33,786 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 02:51:33,786 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-14 02:51:33,786 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-14 02:51:33,787 INFO L87 Difference]: Start difference. First operand 1446 states and 2472 transitions. Second operand has 7 states, 7 states have (on average 9.571428571428571) internal successors, (67), 3 states have internal predecessors, (67), 2 states have call successors, (14), 6 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-10-14 02:51:35,023 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 02:51:35,024 INFO L93 Difference]: Finished difference Result 3539 states and 6160 transitions. [2024-10-14 02:51:35,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-14 02:51:35,024 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 [2024-10-14 02:51:35,024 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 02:51:35,039 INFO L225 Difference]: With dead ends: 3539 [2024-10-14 02:51:35,039 INFO L226 Difference]: Without dead ends: 2339 [2024-10-14 02:51:35,045 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 [2024-10-14 02:51:35,046 INFO L432 NwaCegarLoop]: 164 mSDtfsCounter, 745 mSDsluCounter, 572 mSDsCounter, 0 mSdLazyCounter, 1046 mSolverCounterSat, 296 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 761 SdHoareTripleChecker+Valid, 736 SdHoareTripleChecker+Invalid, 1342 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 296 IncrementalHoareTripleChecker+Valid, 1046 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-10-14 02:51:35,046 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [761 Valid, 736 Invalid, 1342 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [296 Valid, 1046 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-10-14 02:51:35,049 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2339 states. [2024-10-14 02:51:35,180 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2339 to 2213. [2024-10-14 02:51:35,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2213 states, 1796 states have (on average 1.6469933184855234) internal successors, (2958), 1801 states have internal predecessors, (2958), 397 states have call successors, (397), 15 states have call predecessors, (397), 19 states have return successors, (444), 396 states have call predecessors, (444), 396 states have call successors, (444) [2024-10-14 02:51:35,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2213 states to 2213 states and 3799 transitions. [2024-10-14 02:51:35,196 INFO L78 Accepts]: Start accepts. Automaton has 2213 states and 3799 transitions. Word has length 109 [2024-10-14 02:51:35,197 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 02:51:35,197 INFO L471 AbstractCegarLoop]: Abstraction has 2213 states and 3799 transitions. [2024-10-14 02:51:35,197 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) [2024-10-14 02:51:35,197 INFO L276 IsEmpty]: Start isEmpty. Operand 2213 states and 3799 transitions. [2024-10-14 02:51:35,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2024-10-14 02:51:35,206 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 02:51:35,206 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] [2024-10-14 02:51:35,206 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-10-14 02:51:35,207 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 02:51:35,207 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 02:51:35,207 INFO L85 PathProgramCache]: Analyzing trace with hash 1467582229, now seen corresponding path program 1 times [2024-10-14 02:51:35,207 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 02:51:35,207 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1887838273] [2024-10-14 02:51:35,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 02:51:35,208 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 02:51:35,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:51:35,261 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 02:51:35,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:51:35,271 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 02:51:35,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:51:35,274 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 02:51:35,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:51:35,276 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-14 02:51:35,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:51:35,278 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-14 02:51:35,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:51:35,280 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-14 02:51:35,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:51:35,288 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-10-14 02:51:35,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:51:35,298 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-10-14 02:51:35,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:51:35,300 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-10-14 02:51:35,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:51:35,303 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-10-14 02:51:35,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:51:35,304 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-14 02:51:35,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:51:35,306 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-14 02:51:35,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:51:35,307 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2024-10-14 02:51:35,307 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 02:51:35,307 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1887838273] [2024-10-14 02:51:35,307 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1887838273] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 02:51:35,307 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 02:51:35,308 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-14 02:51:35,308 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1881665116] [2024-10-14 02:51:35,308 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 02:51:35,308 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-14 02:51:35,308 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 02:51:35,309 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-14 02:51:35,309 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-14 02:51:35,309 INFO L87 Difference]: Start difference. First operand 2213 states and 3799 transitions. Second operand has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 3 states have internal predecessors, (68), 2 states have call successors, (14), 6 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-10-14 02:51:36,525 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 02:51:36,525 INFO L93 Difference]: Finished difference Result 5321 states and 9318 transitions. [2024-10-14 02:51:36,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-14 02:51:36,525 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 [2024-10-14 02:51:36,526 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 02:51:36,543 INFO L225 Difference]: With dead ends: 5321 [2024-10-14 02:51:36,543 INFO L226 Difference]: Without dead ends: 3563 [2024-10-14 02:51:36,549 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 [2024-10-14 02:51:36,549 INFO L432 NwaCegarLoop]: 165 mSDtfsCounter, 740 mSDsluCounter, 572 mSDsCounter, 0 mSdLazyCounter, 1058 mSolverCounterSat, 291 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 755 SdHoareTripleChecker+Valid, 737 SdHoareTripleChecker+Invalid, 1349 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 291 IncrementalHoareTripleChecker+Valid, 1058 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-10-14 02:51:36,550 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [755 Valid, 737 Invalid, 1349 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [291 Valid, 1058 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-10-14 02:51:36,553 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3563 states. [2024-10-14 02:51:36,679 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3563 to 3437. [2024-10-14 02:51:36,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3437 states, 2841 states have (on average 1.6494192185850052) internal successors, (4686), 2846 states have internal predecessors, (4686), 576 states have call successors, (576), 15 states have call predecessors, (576), 19 states have return successors, (649), 575 states have call predecessors, (649), 575 states have call successors, (649) [2024-10-14 02:51:36,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3437 states to 3437 states and 5911 transitions. [2024-10-14 02:51:36,698 INFO L78 Accepts]: Start accepts. Automaton has 3437 states and 5911 transitions. Word has length 110 [2024-10-14 02:51:36,699 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 02:51:36,699 INFO L471 AbstractCegarLoop]: Abstraction has 3437 states and 5911 transitions. [2024-10-14 02:51:36,699 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) [2024-10-14 02:51:36,699 INFO L276 IsEmpty]: Start isEmpty. Operand 3437 states and 5911 transitions. [2024-10-14 02:51:36,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-10-14 02:51:36,710 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 02:51:36,710 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] [2024-10-14 02:51:36,710 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-10-14 02:51:36,710 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 02:51:36,710 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 02:51:36,710 INFO L85 PathProgramCache]: Analyzing trace with hash -701568396, now seen corresponding path program 1 times [2024-10-14 02:51:36,710 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 02:51:36,711 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [160952076] [2024-10-14 02:51:36,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 02:51:36,711 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 02:51:36,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:51:36,769 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 02:51:36,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:51:36,778 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 02:51:36,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:51:36,781 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 02:51:36,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:51:36,783 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-14 02:51:36,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:51:36,784 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-14 02:51:36,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:51:36,786 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-14 02:51:36,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:51:36,795 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-10-14 02:51:36,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:51:36,804 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-10-14 02:51:36,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:51:36,806 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-14 02:51:36,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:51:36,809 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-14 02:51:36,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:51:36,814 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-10-14 02:51:36,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:51:36,816 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-10-14 02:51:36,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:51:36,817 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2024-10-14 02:51:36,817 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 02:51:36,817 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [160952076] [2024-10-14 02:51:36,817 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [160952076] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 02:51:36,817 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 02:51:36,817 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-14 02:51:36,817 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2013646293] [2024-10-14 02:51:36,817 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 02:51:36,818 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-14 02:51:36,818 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 02:51:36,818 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-14 02:51:36,818 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-14 02:51:36,818 INFO L87 Difference]: Start difference. First operand 3437 states and 5911 transitions. Second operand has 7 states, 7 states have (on average 9.857142857142858) internal successors, (69), 3 states have internal predecessors, (69), 2 states have call successors, (14), 6 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-10-14 02:51:38,041 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 02:51:38,041 INFO L93 Difference]: Finished difference Result 8300 states and 14558 transitions. [2024-10-14 02:51:38,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-14 02:51:38,042 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 [2024-10-14 02:51:38,042 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 02:51:38,074 INFO L225 Difference]: With dead ends: 8300 [2024-10-14 02:51:38,075 INFO L226 Difference]: Without dead ends: 5621 [2024-10-14 02:51:38,084 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 [2024-10-14 02:51:38,084 INFO L432 NwaCegarLoop]: 179 mSDtfsCounter, 739 mSDsluCounter, 591 mSDsCounter, 0 mSdLazyCounter, 1082 mSolverCounterSat, 293 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 755 SdHoareTripleChecker+Valid, 770 SdHoareTripleChecker+Invalid, 1375 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 293 IncrementalHoareTripleChecker+Valid, 1082 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-10-14 02:51:38,085 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [755 Valid, 770 Invalid, 1375 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [293 Valid, 1082 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-10-14 02:51:38,090 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5621 states. [2024-10-14 02:51:38,338 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5621 to 5495. [2024-10-14 02:51:38,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5495 states, 4523 states have (on average 1.6380720760557153) internal successors, (7409), 4528 states have internal predecessors, (7409), 952 states have call successors, (952), 15 states have call predecessors, (952), 19 states have return successors, (1069), 951 states have call predecessors, (1069), 951 states have call successors, (1069) [2024-10-14 02:51:38,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5495 states to 5495 states and 9430 transitions. [2024-10-14 02:51:38,380 INFO L78 Accepts]: Start accepts. Automaton has 5495 states and 9430 transitions. Word has length 111 [2024-10-14 02:51:38,381 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 02:51:38,381 INFO L471 AbstractCegarLoop]: Abstraction has 5495 states and 9430 transitions. [2024-10-14 02:51:38,381 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) [2024-10-14 02:51:38,381 INFO L276 IsEmpty]: Start isEmpty. Operand 5495 states and 9430 transitions. [2024-10-14 02:51:38,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2024-10-14 02:51:38,397 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 02:51:38,397 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] [2024-10-14 02:51:38,398 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-10-14 02:51:38,398 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 02:51:38,398 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 02:51:38,398 INFO L85 PathProgramCache]: Analyzing trace with hash -927091367, now seen corresponding path program 1 times [2024-10-14 02:51:38,398 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 02:51:38,399 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [839132730] [2024-10-14 02:51:38,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 02:51:38,399 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 02:51:38,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:51:38,466 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 02:51:38,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:51:38,477 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 02:51:38,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:51:38,480 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 02:51:38,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:51:38,482 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-14 02:51:38,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:51:38,485 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-14 02:51:38,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:51:38,487 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-14 02:51:38,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:51:38,497 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-10-14 02:51:38,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:51:38,506 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-10-14 02:51:38,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:51:38,509 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-10-14 02:51:38,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:51:38,511 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-10-14 02:51:38,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:51:38,515 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-10-14 02:51:38,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:51:38,517 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-10-14 02:51:38,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:51:38,519 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2024-10-14 02:51:38,519 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 02:51:38,519 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [839132730] [2024-10-14 02:51:38,519 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [839132730] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 02:51:38,519 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 02:51:38,519 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-14 02:51:38,520 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [681446128] [2024-10-14 02:51:38,520 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 02:51:38,521 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-14 02:51:38,521 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 02:51:38,522 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-14 02:51:38,522 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-14 02:51:38,522 INFO L87 Difference]: Start difference. First operand 5495 states and 9430 transitions. Second operand has 7 states, 7 states have (on average 10.0) internal successors, (70), 3 states have internal predecessors, (70), 2 states have call successors, (14), 6 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-10-14 02:51:39,724 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 02:51:39,724 INFO L93 Difference]: Finished difference Result 13661 states and 23915 transitions. [2024-10-14 02:51:39,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-14 02:51:39,725 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 [2024-10-14 02:51:39,725 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 02:51:39,790 INFO L225 Difference]: With dead ends: 13661 [2024-10-14 02:51:39,790 INFO L226 Difference]: Without dead ends: 9310 [2024-10-14 02:51:39,808 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 [2024-10-14 02:51:39,809 INFO L432 NwaCegarLoop]: 167 mSDtfsCounter, 736 mSDsluCounter, 577 mSDsCounter, 0 mSdLazyCounter, 1065 mSolverCounterSat, 299 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 751 SdHoareTripleChecker+Valid, 744 SdHoareTripleChecker+Invalid, 1364 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 299 IncrementalHoareTripleChecker+Valid, 1065 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-10-14 02:51:39,809 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [751 Valid, 744 Invalid, 1364 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [299 Valid, 1065 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-10-14 02:51:39,819 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9310 states. [2024-10-14 02:51:40,131 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9310 to 9184. [2024-10-14 02:51:40,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9184 states, 7606 states have (on average 1.6354194057323166) internal successors, (12439), 7611 states have internal predecessors, (12439), 1558 states have call successors, (1558), 15 states have call predecessors, (1558), 19 states have return successors, (1753), 1557 states have call predecessors, (1753), 1557 states have call successors, (1753) [2024-10-14 02:51:40,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9184 states to 9184 states and 15750 transitions. [2024-10-14 02:51:40,198 INFO L78 Accepts]: Start accepts. Automaton has 9184 states and 15750 transitions. Word has length 112 [2024-10-14 02:51:40,198 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 02:51:40,199 INFO L471 AbstractCegarLoop]: Abstraction has 9184 states and 15750 transitions. [2024-10-14 02:51:40,199 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) [2024-10-14 02:51:40,199 INFO L276 IsEmpty]: Start isEmpty. Operand 9184 states and 15750 transitions. [2024-10-14 02:51:40,302 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2024-10-14 02:51:40,302 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 02:51:40,303 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] [2024-10-14 02:51:40,303 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-10-14 02:51:40,303 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 02:51:40,303 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 02:51:40,303 INFO L85 PathProgramCache]: Analyzing trace with hash 485830754, now seen corresponding path program 1 times [2024-10-14 02:51:40,304 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 02:51:40,304 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2048457266] [2024-10-14 02:51:40,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 02:51:40,304 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 02:51:40,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:51:40,358 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 02:51:40,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:51:40,367 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 02:51:40,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:51:40,369 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 02:51:40,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:51:40,373 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-14 02:51:40,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:51:40,374 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-14 02:51:40,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:51:40,377 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-14 02:51:40,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:51:40,385 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-10-14 02:51:40,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:51:40,393 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-10-14 02:51:40,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:51:40,396 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-10-14 02:51:40,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:51:40,397 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-10-14 02:51:40,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:51:40,398 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-10-14 02:51:40,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:51:40,399 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-10-14 02:51:40,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:51:40,400 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2024-10-14 02:51:40,400 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 02:51:40,400 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2048457266] [2024-10-14 02:51:40,400 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2048457266] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 02:51:40,400 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 02:51:40,400 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-14 02:51:40,400 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1935576215] [2024-10-14 02:51:40,400 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 02:51:40,401 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-14 02:51:40,401 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 02:51:40,402 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-14 02:51:40,402 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-14 02:51:40,402 INFO L87 Difference]: Start difference. First operand 9184 states and 15750 transitions. Second operand has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 3 states have internal predecessors, (71), 2 states have call successors, (14), 6 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-10-14 02:51:41,802 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 02:51:41,803 INFO L93 Difference]: Finished difference Result 23853 states and 41679 transitions. [2024-10-14 02:51:41,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-14 02:51:41,803 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 3 states have internal predecessors, (71), 2 states have call successors, (14), 6 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 113 [2024-10-14 02:51:41,803 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 02:51:41,880 INFO L225 Difference]: With dead ends: 23853 [2024-10-14 02:51:41,880 INFO L226 Difference]: Without dead ends: 16270 [2024-10-14 02:51:41,915 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 [2024-10-14 02:51:41,915 INFO L432 NwaCegarLoop]: 172 mSDtfsCounter, 735 mSDsluCounter, 588 mSDsCounter, 0 mSdLazyCounter, 1070 mSolverCounterSat, 296 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 750 SdHoareTripleChecker+Valid, 760 SdHoareTripleChecker+Invalid, 1366 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 296 IncrementalHoareTripleChecker+Valid, 1070 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-10-14 02:51:41,916 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [750 Valid, 760 Invalid, 1366 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [296 Valid, 1070 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-10-14 02:51:41,930 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16270 states. [2024-10-14 02:51:42,644 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16270 to 16144. [2024-10-14 02:51:42,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16144 states, 13363 states have (on average 1.626281523609968) internal successors, (21732), 13368 states have internal predecessors, (21732), 2761 states have call successors, (2761), 15 states have call predecessors, (2761), 19 states have return successors, (3100), 2760 states have call predecessors, (3100), 2760 states have call successors, (3100) [2024-10-14 02:51:42,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16144 states to 16144 states and 27593 transitions. [2024-10-14 02:51:42,734 INFO L78 Accepts]: Start accepts. Automaton has 16144 states and 27593 transitions. Word has length 113 [2024-10-14 02:51:42,735 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 02:51:42,735 INFO L471 AbstractCegarLoop]: Abstraction has 16144 states and 27593 transitions. [2024-10-14 02:51:42,735 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 3 states have internal predecessors, (71), 2 states have call successors, (14), 6 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-10-14 02:51:42,735 INFO L276 IsEmpty]: Start isEmpty. Operand 16144 states and 27593 transitions. [2024-10-14 02:51:42,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2024-10-14 02:51:42,761 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 02:51:42,762 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] [2024-10-14 02:51:42,762 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-10-14 02:51:42,762 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 02:51:42,762 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 02:51:42,763 INFO L85 PathProgramCache]: Analyzing trace with hash 626860570, now seen corresponding path program 1 times [2024-10-14 02:51:42,763 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 02:51:42,763 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1607349515] [2024-10-14 02:51:42,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 02:51:42,763 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 02:51:42,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:51:42,815 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 02:51:42,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:51:42,825 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 02:51:42,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:51:42,828 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 02:51:42,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:51:42,830 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-14 02:51:42,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:51:42,833 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-14 02:51:42,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:51:42,835 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-14 02:51:42,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:51:42,844 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-14 02:51:42,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:51:42,855 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-14 02:51:42,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:51:42,857 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-10-14 02:51:42,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:51:42,858 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-10-14 02:51:42,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:51:42,860 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-10-14 02:51:42,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:51:42,862 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-10-14 02:51:42,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:51:42,863 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2024-10-14 02:51:42,864 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 02:51:42,864 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1607349515] [2024-10-14 02:51:42,864 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1607349515] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 02:51:42,864 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 02:51:42,865 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-14 02:51:42,865 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [40899498] [2024-10-14 02:51:42,865 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 02:51:42,865 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-14 02:51:42,865 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 02:51:42,866 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-14 02:51:42,866 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-14 02:51:42,866 INFO L87 Difference]: Start difference. First operand 16144 states and 27593 transitions. Second operand has 7 states, 7 states have (on average 10.285714285714286) internal successors, (72), 3 states have internal predecessors, (72), 2 states have call successors, (14), 6 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-10-14 02:51:44,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 02:51:44,334 INFO L93 Difference]: Finished difference Result 42828 states and 74691 transitions. [2024-10-14 02:51:44,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-14 02:51:44,334 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.285714285714286) internal successors, (72), 3 states have internal predecessors, (72), 2 states have call successors, (14), 6 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 114 [2024-10-14 02:51:44,334 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 02:51:44,464 INFO L225 Difference]: With dead ends: 42828 [2024-10-14 02:51:44,464 INFO L226 Difference]: Without dead ends: 28933 [2024-10-14 02:51:44,514 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 [2024-10-14 02:51:44,514 INFO L432 NwaCegarLoop]: 165 mSDtfsCounter, 733 mSDsluCounter, 573 mSDsCounter, 0 mSdLazyCounter, 1058 mSolverCounterSat, 301 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 749 SdHoareTripleChecker+Valid, 738 SdHoareTripleChecker+Invalid, 1359 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 301 IncrementalHoareTripleChecker+Valid, 1058 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-10-14 02:51:44,515 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [749 Valid, 738 Invalid, 1359 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [301 Valid, 1058 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-10-14 02:51:44,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28933 states. [2024-10-14 02:51:45,730 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28933 to 28807. [2024-10-14 02:51:45,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28807 states, 23987 states have (on average 1.6224621670071289) internal successors, (38918), 23992 states have internal predecessors, (38918), 4800 states have call successors, (4800), 15 states have call predecessors, (4800), 19 states have return successors, (5413), 4799 states have call predecessors, (5413), 4799 states have call successors, (5413) [2024-10-14 02:51:45,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28807 states to 28807 states and 49131 transitions. [2024-10-14 02:51:45,909 INFO L78 Accepts]: Start accepts. Automaton has 28807 states and 49131 transitions. Word has length 114 [2024-10-14 02:51:45,910 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 02:51:45,910 INFO L471 AbstractCegarLoop]: Abstraction has 28807 states and 49131 transitions. [2024-10-14 02:51:45,910 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.285714285714286) internal successors, (72), 3 states have internal predecessors, (72), 2 states have call successors, (14), 6 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-10-14 02:51:45,910 INFO L276 IsEmpty]: Start isEmpty. Operand 28807 states and 49131 transitions. [2024-10-14 02:51:45,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2024-10-14 02:51:45,942 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 02:51:45,942 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 02:51:45,943 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-10-14 02:51:45,943 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 02:51:45,943 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 02:51:45,943 INFO L85 PathProgramCache]: Analyzing trace with hash 1306552260, now seen corresponding path program 1 times [2024-10-14 02:51:45,943 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 02:51:45,944 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1274162490] [2024-10-14 02:51:45,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 02:51:45,945 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 02:51:45,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:51:46,010 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 02:51:46,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:51:46,021 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 02:51:46,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:51:46,027 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 02:51:46,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:51:46,030 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-14 02:51:46,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:51:46,032 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-14 02:51:46,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:51:46,036 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-14 02:51:46,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:51:46,045 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-10-14 02:51:46,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:51:46,055 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-14 02:51:46,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:51:46,058 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-14 02:51:46,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:51:46,059 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-10-14 02:51:46,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:51:46,062 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-10-14 02:51:46,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:51:46,063 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-10-14 02:51:46,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:51:46,065 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2024-10-14 02:51:46,065 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 02:51:46,065 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1274162490] [2024-10-14 02:51:46,065 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1274162490] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 02:51:46,065 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 02:51:46,065 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-14 02:51:46,066 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1643285459] [2024-10-14 02:51:46,066 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 02:51:46,067 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-14 02:51:46,067 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 02:51:46,068 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-14 02:51:46,068 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-14 02:51:46,069 INFO L87 Difference]: Start difference. First operand 28807 states and 49131 transitions. Second operand has 7 states, 7 states have (on average 10.428571428571429) internal successors, (73), 3 states have internal predecessors, (73), 2 states have call successors, (14), 6 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-10-14 02:51:48,440 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 02:51:48,440 INFO L93 Difference]: Finished difference Result 78600 states and 136250 transitions. [2024-10-14 02:51:48,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-14 02:51:48,441 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.428571428571429) internal successors, (73), 3 states have internal predecessors, (73), 2 states have call successors, (14), 6 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 115 [2024-10-14 02:51:48,441 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 02:51:48,675 INFO L225 Difference]: With dead ends: 78600 [2024-10-14 02:51:48,675 INFO L226 Difference]: Without dead ends: 52821 [2024-10-14 02:51:48,767 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 [2024-10-14 02:51:48,768 INFO L432 NwaCegarLoop]: 164 mSDtfsCounter, 733 mSDsluCounter, 573 mSDsCounter, 0 mSdLazyCounter, 1044 mSolverCounterSat, 304 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 749 SdHoareTripleChecker+Valid, 737 SdHoareTripleChecker+Invalid, 1348 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 304 IncrementalHoareTripleChecker+Valid, 1044 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-10-14 02:51:48,768 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [749 Valid, 737 Invalid, 1348 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [304 Valid, 1044 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-10-14 02:51:48,809 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52821 states. [2024-10-14 02:51:51,046 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52821 to 52695. [2024-10-14 02:51:51,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52695 states, 44160 states have (on average 1.617481884057971) internal successors, (71428), 44165 states have internal predecessors, (71428), 8515 states have call successors, (8515), 15 states have call predecessors, (8515), 19 states have return successors, (9660), 8514 states have call predecessors, (9660), 8514 states have call successors, (9660) [2024-10-14 02:51:51,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52695 states to 52695 states and 89603 transitions. [2024-10-14 02:51:51,298 INFO L78 Accepts]: Start accepts. Automaton has 52695 states and 89603 transitions. Word has length 115 [2024-10-14 02:51:51,299 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 02:51:51,299 INFO L471 AbstractCegarLoop]: Abstraction has 52695 states and 89603 transitions. [2024-10-14 02:51:51,299 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.428571428571429) internal successors, (73), 3 states have internal predecessors, (73), 2 states have call successors, (14), 6 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-10-14 02:51:51,299 INFO L276 IsEmpty]: Start isEmpty. Operand 52695 states and 89603 transitions. [2024-10-14 02:51:51,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2024-10-14 02:51:51,325 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 02:51:51,325 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 02:51:51,325 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-10-14 02:51:51,326 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 02:51:51,326 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 02:51:51,326 INFO L85 PathProgramCache]: Analyzing trace with hash 811312570, now seen corresponding path program 1 times [2024-10-14 02:51:51,326 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 02:51:51,326 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1340023759] [2024-10-14 02:51:51,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 02:51:51,326 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 02:51:51,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:51:51,374 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 02:51:51,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:51:51,385 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 02:51:51,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:51:51,389 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 02:51:51,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:51:51,393 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-14 02:51:51,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:51:51,395 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-14 02:51:51,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:51:51,397 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-14 02:51:51,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:51:51,405 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-10-14 02:51:51,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:51:51,413 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-10-14 02:51:51,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:51:51,417 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-10-14 02:51:51,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:51:51,418 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-10-14 02:51:51,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:51:51,423 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-14 02:51:51,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:51:51,424 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-14 02:51:51,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:51:51,425 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2024-10-14 02:51:51,425 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 02:51:51,425 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1340023759] [2024-10-14 02:51:51,425 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1340023759] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 02:51:51,425 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 02:51:51,425 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-14 02:51:51,425 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1863326723] [2024-10-14 02:51:51,426 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 02:51:51,426 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-14 02:51:51,426 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 02:51:51,426 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-14 02:51:51,427 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-14 02:51:51,427 INFO L87 Difference]: Start difference. First operand 52695 states and 89603 transitions. Second operand has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 3 states have internal predecessors, (74), 2 states have call successors, (14), 6 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-10-14 02:51:54,511 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 02:51:54,512 INFO L93 Difference]: Finished difference Result 98375 states and 170955 transitions. [2024-10-14 02:51:54,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-14 02:51:54,513 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 3 states have internal predecessors, (74), 2 states have call successors, (14), 6 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 116 [2024-10-14 02:51:54,513 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 02:51:54,941 INFO L225 Difference]: With dead ends: 98375 [2024-10-14 02:51:54,942 INFO L226 Difference]: Without dead ends: 98293 [2024-10-14 02:51:55,127 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 [2024-10-14 02:51:55,128 INFO L432 NwaCegarLoop]: 167 mSDtfsCounter, 726 mSDsluCounter, 580 mSDsCounter, 0 mSdLazyCounter, 1057 mSolverCounterSat, 295 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 740 SdHoareTripleChecker+Valid, 747 SdHoareTripleChecker+Invalid, 1352 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 295 IncrementalHoareTripleChecker+Valid, 1057 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-10-14 02:51:55,128 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [740 Valid, 747 Invalid, 1352 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [295 Valid, 1057 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-10-14 02:51:55,188 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98293 states. [2024-10-14 02:51:58,392 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98293 to 98167. [2024-10-14 02:51:58,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 98167 states, 82833 states have (on average 1.611157388963336) internal successors, (133457), 82838 states have internal predecessors, (133457), 15314 states have call successors, (15314), 15 states have call predecessors, (15314), 19 states have return successors, (17505), 15313 states have call predecessors, (17505), 15313 states have call successors, (17505) [2024-10-14 02:51:58,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98167 states to 98167 states and 166276 transitions. [2024-10-14 02:51:58,793 INFO L78 Accepts]: Start accepts. Automaton has 98167 states and 166276 transitions. Word has length 116 [2024-10-14 02:51:58,793 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 02:51:58,793 INFO L471 AbstractCegarLoop]: Abstraction has 98167 states and 166276 transitions. [2024-10-14 02:51:58,794 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 3 states have internal predecessors, (74), 2 states have call successors, (14), 6 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-10-14 02:51:58,794 INFO L276 IsEmpty]: Start isEmpty. Operand 98167 states and 166276 transitions. [2024-10-14 02:51:58,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2024-10-14 02:51:58,821 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 02:51:58,822 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 02:51:58,822 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-10-14 02:51:58,822 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 02:51:58,822 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 02:51:58,822 INFO L85 PathProgramCache]: Analyzing trace with hash -1721260413, now seen corresponding path program 1 times [2024-10-14 02:51:58,823 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 02:51:58,823 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2119939152] [2024-10-14 02:51:58,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 02:51:58,823 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 02:51:58,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:51:59,563 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 02:51:59,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:51:59,578 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 02:51:59,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:51:59,582 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 02:51:59,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:51:59,629 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-14 02:51:59,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:51:59,635 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-14 02:51:59,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:51:59,639 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-14 02:51:59,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:51:59,655 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-10-14 02:51:59,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:51:59,671 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-10-14 02:51:59,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:51:59,712 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-14 02:51:59,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:51:59,715 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-14 02:51:59,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:51:59,735 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-10-14 02:51:59,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:51:59,737 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-10-14 02:51:59,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:51:59,739 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 3 proven. 7 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-10-14 02:51:59,739 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 02:51:59,739 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2119939152] [2024-10-14 02:51:59,739 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2119939152] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 02:51:59,739 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [149630096] [2024-10-14 02:51:59,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 02:51:59,740 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 02:51:59,740 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 02:51:59,741 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) [2024-10-14 02:51:59,742 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-10-14 02:51:59,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:51:59,986 INFO L255 TraceCheckSpWp]: Trace formula consists of 943 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-10-14 02:51:59,992 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 02:52:00,244 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-10-14 02:52:00,244 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-14 02:52:00,244 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [149630096] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 02:52:00,244 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-14 02:52:00,244 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [18] total 27 [2024-10-14 02:52:00,245 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [268772713] [2024-10-14 02:52:00,245 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 02:52:00,245 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-10-14 02:52:00,245 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 02:52:00,246 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-10-14 02:52:00,246 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=639, Unknown=0, NotChecked=0, Total=702 [2024-10-14 02:52:00,246 INFO L87 Difference]: Start difference. First operand 98167 states and 166276 transitions. Second operand has 11 states, 10 states have (on average 8.5) internal successors, (85), 9 states have internal predecessors, (85), 5 states have call successors, (14), 5 states have call predecessors, (14), 6 states have return successors, (12), 6 states have call predecessors, (12), 5 states have call successors, (12) [2024-10-14 02:52:02,690 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 02:52:02,690 INFO L93 Difference]: Finished difference Result 98351 states and 166524 transitions. [2024-10-14 02:52:02,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-14 02:52:02,691 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 8.5) internal successors, (85), 9 states have internal predecessors, (85), 5 states have call successors, (14), 5 states have call predecessors, (14), 6 states have return successors, (12), 6 states have call predecessors, (12), 5 states have call successors, (12) Word has length 117 [2024-10-14 02:52:02,691 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 02:52:03,093 INFO L225 Difference]: With dead ends: 98351 [2024-10-14 02:52:03,094 INFO L226 Difference]: Without dead ends: 98274 [2024-10-14 02:52:03,126 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 165 GetRequests, 129 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 133 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=160, Invalid=1246, Unknown=0, NotChecked=0, Total=1406 [2024-10-14 02:52:03,127 INFO L432 NwaCegarLoop]: 358 mSDtfsCounter, 443 mSDsluCounter, 2751 mSDsCounter, 0 mSdLazyCounter, 474 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 447 SdHoareTripleChecker+Valid, 3109 SdHoareTripleChecker+Invalid, 530 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 474 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-14 02:52:03,127 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [447 Valid, 3109 Invalid, 530 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 474 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-14 02:52:03,206 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98274 states. [2024-10-14 02:52:06,156 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98274 to 98258. [2024-10-14 02:52:06,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 98258 states, 82900 states have (on average 1.6109891435464414) internal successors, (133551), 82905 states have internal predecessors, (133551), 15327 states have call successors, (15327), 24 states have call predecessors, (15327), 30 states have return successors, (17522), 15328 states have call predecessors, (17522), 15325 states have call successors, (17522) [2024-10-14 02:52:06,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98258 states to 98258 states and 166400 transitions. [2024-10-14 02:52:06,561 INFO L78 Accepts]: Start accepts. Automaton has 98258 states and 166400 transitions. Word has length 117 [2024-10-14 02:52:06,561 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 02:52:06,561 INFO L471 AbstractCegarLoop]: Abstraction has 98258 states and 166400 transitions. [2024-10-14 02:52:06,562 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 8.5) internal successors, (85), 9 states have internal predecessors, (85), 5 states have call successors, (14), 5 states have call predecessors, (14), 6 states have return successors, (12), 6 states have call predecessors, (12), 5 states have call successors, (12) [2024-10-14 02:52:06,562 INFO L276 IsEmpty]: Start isEmpty. Operand 98258 states and 166400 transitions. [2024-10-14 02:52:06,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2024-10-14 02:52:06,593 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 02:52:06,593 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 02:52:06,611 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-10-14 02:52:06,793 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 [2024-10-14 02:52:06,794 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 02:52:06,794 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 02:52:06,794 INFO L85 PathProgramCache]: Analyzing trace with hash 1466214566, now seen corresponding path program 1 times [2024-10-14 02:52:06,794 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 02:52:06,794 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [954862171] [2024-10-14 02:52:06,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 02:52:06,795 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 02:52:07,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:52:07,683 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 02:52:07,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:52:07,699 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 02:52:07,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:52:07,702 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 02:52:07,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:52:07,733 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-14 02:52:07,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:52:07,739 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-14 02:52:07,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:52:07,744 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-14 02:52:07,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:52:07,764 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-10-14 02:52:07,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:52:07,784 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-10-14 02:52:07,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:52:07,826 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-14 02:52:07,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:52:07,829 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-14 02:52:07,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:52:07,851 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-10-14 02:52:07,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:52:07,853 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-10-14 02:52:07,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:52:07,856 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 3 proven. 7 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-10-14 02:52:07,857 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 02:52:07,857 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [954862171] [2024-10-14 02:52:07,857 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [954862171] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 02:52:07,857 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1714856032] [2024-10-14 02:52:07,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 02:52:07,857 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 02:52:07,858 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 02:52:07,859 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) [2024-10-14 02:52:07,862 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-10-14 02:52:08,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:52:08,140 INFO L255 TraceCheckSpWp]: Trace formula consists of 944 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-10-14 02:52:08,144 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 02:52:08,405 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-10-14 02:52:08,405 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-14 02:52:08,405 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1714856032] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 02:52:08,405 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-14 02:52:08,405 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [19] total 29 [2024-10-14 02:52:08,406 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [719282190] [2024-10-14 02:52:08,406 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 02:52:08,406 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-10-14 02:52:08,406 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 02:52:08,407 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-10-14 02:52:08,407 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=744, Unknown=0, NotChecked=0, Total=812 [2024-10-14 02:52:08,408 INFO L87 Difference]: Start difference. First operand 98258 states and 166400 transitions. Second operand has 12 states, 11 states have (on average 7.818181818181818) internal successors, (86), 10 states have internal predecessors, (86), 5 states have call successors, (14), 5 states have call predecessors, (14), 6 states have return successors, (12), 6 states have call predecessors, (12), 5 states have call successors, (12) [2024-10-14 02:52:10,741 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 02:52:10,741 INFO L93 Difference]: Finished difference Result 98447 states and 166671 transitions. [2024-10-14 02:52:10,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-10-14 02:52:10,742 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 7.818181818181818) internal successors, (86), 10 states have internal predecessors, (86), 5 states have call successors, (14), 5 states have call predecessors, (14), 6 states have return successors, (12), 6 states have call predecessors, (12), 5 states have call successors, (12) Word has length 118 [2024-10-14 02:52:10,742 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 02:52:11,141 INFO L225 Difference]: With dead ends: 98447 [2024-10-14 02:52:11,141 INFO L226 Difference]: Without dead ends: 98293 [2024-10-14 02:52:11,184 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 170 GetRequests, 129 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 201 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=196, Invalid=1610, Unknown=0, NotChecked=0, Total=1806 [2024-10-14 02:52:11,184 INFO L432 NwaCegarLoop]: 360 mSDtfsCounter, 489 mSDsluCounter, 3127 mSDsCounter, 0 mSdLazyCounter, 602 mSolverCounterSat, 76 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 493 SdHoareTripleChecker+Valid, 3487 SdHoareTripleChecker+Invalid, 678 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 76 IncrementalHoareTripleChecker+Valid, 602 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-14 02:52:11,185 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [493 Valid, 3487 Invalid, 678 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [76 Valid, 602 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-14 02:52:11,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98293 states. [2024-10-14 02:52:14,730 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98293 to 98273. [2024-10-14 02:52:14,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 98273 states, 82911 states have (on average 1.6109442655377453) internal successors, (133565), 82915 states have internal predecessors, (133565), 15331 states have call successors, (15331), 24 states have call predecessors, (15331), 30 states have return successors, (17527), 15333 states have call predecessors, (17527), 15329 states have call successors, (17527) [2024-10-14 02:52:15,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98273 states to 98273 states and 166423 transitions. [2024-10-14 02:52:15,109 INFO L78 Accepts]: Start accepts. Automaton has 98273 states and 166423 transitions. Word has length 118 [2024-10-14 02:52:15,110 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 02:52:15,110 INFO L471 AbstractCegarLoop]: Abstraction has 98273 states and 166423 transitions. [2024-10-14 02:52:15,110 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 7.818181818181818) internal successors, (86), 10 states have internal predecessors, (86), 5 states have call successors, (14), 5 states have call predecessors, (14), 6 states have return successors, (12), 6 states have call predecessors, (12), 5 states have call successors, (12) [2024-10-14 02:52:15,110 INFO L276 IsEmpty]: Start isEmpty. Operand 98273 states and 166423 transitions. [2024-10-14 02:52:15,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2024-10-14 02:52:15,140 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 02:52:15,140 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 02:52:15,158 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-10-14 02:52:15,344 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 [2024-10-14 02:52:15,345 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 02:52:15,345 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 02:52:15,345 INFO L85 PathProgramCache]: Analyzing trace with hash -1816707506, now seen corresponding path program 1 times [2024-10-14 02:52:15,345 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 02:52:15,346 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1955323426] [2024-10-14 02:52:15,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 02:52:15,346 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 02:52:15,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:52:15,489 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 02:52:15,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:52:15,502 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 02:52:15,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:52:15,505 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 02:52:15,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:52:15,507 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-14 02:52:15,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:52:15,509 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-14 02:52:15,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:52:15,511 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-14 02:52:15,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:52:15,523 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-10-14 02:52:15,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:52:15,537 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-10-14 02:52:15,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:52:15,539 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-14 02:52:15,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:52:15,541 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-14 02:52:15,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:52:15,568 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-10-14 02:52:15,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:52:15,570 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-10-14 02:52:15,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:52:15,574 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2024-10-14 02:52:15,574 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 02:52:15,575 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1955323426] [2024-10-14 02:52:15,575 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1955323426] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 02:52:15,575 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 02:52:15,575 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-10-14 02:52:15,575 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [981969946] [2024-10-14 02:52:15,575 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 02:52:15,575 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-10-14 02:52:15,575 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 02:52:15,576 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-10-14 02:52:15,576 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=133, Unknown=0, NotChecked=0, Total=156 [2024-10-14 02:52:15,576 INFO L87 Difference]: Start difference. First operand 98273 states and 166423 transitions. Second operand has 13 states, 11 states have (on average 6.909090909090909) internal successors, (76), 8 states have internal predecessors, (76), 6 states have call successors, (14), 6 states have call predecessors, (14), 2 states have return successors, (12), 4 states have call predecessors, (12), 5 states have call successors, (12) [2024-10-14 02:52:20,069 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 02:52:20,069 INFO L93 Difference]: Finished difference Result 98982 states and 170809 transitions. [2024-10-14 02:52:20,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2024-10-14 02:52:20,069 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 11 states have (on average 6.909090909090909) internal successors, (76), 8 states have internal predecessors, (76), 6 states have call successors, (14), 6 states have call predecessors, (14), 2 states have return successors, (12), 4 states have call predecessors, (12), 5 states have call successors, (12) Word has length 118 [2024-10-14 02:52:20,070 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 02:52:20,396 INFO L225 Difference]: With dead ends: 98982 [2024-10-14 02:52:20,396 INFO L226 Difference]: Without dead ends: 98701 [2024-10-14 02:52:20,440 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 297 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=282, Invalid=1124, Unknown=0, NotChecked=0, Total=1406 [2024-10-14 02:52:20,442 INFO L432 NwaCegarLoop]: 167 mSDtfsCounter, 986 mSDsluCounter, 1385 mSDsCounter, 0 mSdLazyCounter, 3259 mSolverCounterSat, 375 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 986 SdHoareTripleChecker+Valid, 1552 SdHoareTripleChecker+Invalid, 3634 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 375 IncrementalHoareTripleChecker+Valid, 3259 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-10-14 02:52:20,442 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [986 Valid, 1552 Invalid, 3634 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [375 Valid, 3259 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-10-14 02:52:20,508 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98701 states.