./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_spec3_product18.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4a390ef5 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/email_spec3_product18.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 8d7d2bf487526d6e0729662c61851f9ddffc6ed66e923d4f96f5d4608e690fa4 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4a390ef-m [2024-10-24 00:49:09,094 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-24 00:49:09,178 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-24 00:49:09,184 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-24 00:49:09,185 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-24 00:49:09,217 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-24 00:49:09,218 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-24 00:49:09,218 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-24 00:49:09,219 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-24 00:49:09,219 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-24 00:49:09,219 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-24 00:49:09,220 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-24 00:49:09,220 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-24 00:49:09,220 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-24 00:49:09,221 INFO L153 SettingsManager]: * Use SBE=true [2024-10-24 00:49:09,221 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-24 00:49:09,222 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-24 00:49:09,222 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-24 00:49:09,222 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-24 00:49:09,223 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-24 00:49:09,223 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-24 00:49:09,224 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-24 00:49:09,224 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-24 00:49:09,224 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-24 00:49:09,224 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-24 00:49:09,225 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-24 00:49:09,225 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-24 00:49:09,225 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-24 00:49:09,226 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-24 00:49:09,226 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-24 00:49:09,226 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-24 00:49:09,227 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-24 00:49:09,227 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 00:49:09,227 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-24 00:49:09,227 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-24 00:49:09,228 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-24 00:49:09,228 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-24 00:49:09,228 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-24 00:49:09,228 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-24 00:49:09,229 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-24 00:49:09,229 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-24 00:49:09,232 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-24 00:49:09,232 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8d7d2bf487526d6e0729662c61851f9ddffc6ed66e923d4f96f5d4608e690fa4 [2024-10-24 00:49:09,507 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-24 00:49:09,534 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-24 00:49:09,538 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-24 00:49:09,539 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-24 00:49:09,540 INFO L274 PluginConnector]: CDTParser initialized [2024-10-24 00:49:09,541 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/email_spec3_product18.cil.c [2024-10-24 00:49:11,113 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-24 00:49:11,414 INFO L384 CDTParser]: Found 1 translation units. [2024-10-24 00:49:11,417 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/email_spec3_product18.cil.c [2024-10-24 00:49:11,448 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dd3c1b888/1e551ec7e0c64eb489e742b5cb01e7d9/FLAGaa918f925 [2024-10-24 00:49:11,466 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dd3c1b888/1e551ec7e0c64eb489e742b5cb01e7d9 [2024-10-24 00:49:11,468 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-24 00:49:11,470 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-24 00:49:11,471 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-24 00:49:11,471 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-24 00:49:11,476 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-24 00:49:11,477 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 12:49:11" (1/1) ... [2024-10-24 00:49:11,478 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@36db59cc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:49:11, skipping insertion in model container [2024-10-24 00:49:11,478 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 12:49:11" (1/1) ... [2024-10-24 00:49:11,571 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-24 00:49:12,053 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_spec3_product18.cil.c[42127,42140] [2024-10-24 00:49:12,160 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 00:49:12,175 INFO L200 MainTranslator]: Completed pre-run [2024-10-24 00:49:12,186 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [48] [2024-10-24 00:49:12,188 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"ClientLib.i","") [97] [2024-10-24 00:49:12,189 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [1177] [2024-10-24 00:49:12,189 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [1470] [2024-10-24 00:49:12,189 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [1836] [2024-10-24 00:49:12,189 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Client.i","") [1845] [2024-10-24 00:49:12,189 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"EmailLib.i","") [2147] [2024-10-24 00:49:12,190 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"SignVerify_spec.i","") [2550] [2024-10-24 00:49:12,191 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [2608] [2024-10-24 00:49:12,191 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Email.i","") [2824] [2024-10-24 00:49:12,191 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Util.i","") [2921] [2024-10-24 00:49:12,262 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_spec3_product18.cil.c[42127,42140] [2024-10-24 00:49:12,301 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 00:49:12,337 INFO L204 MainTranslator]: Completed translation [2024-10-24 00:49:12,337 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:49:12 WrapperNode [2024-10-24 00:49:12,337 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-24 00:49:12,338 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-24 00:49:12,338 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-24 00:49:12,338 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-24 00:49:12,344 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:49:12" (1/1) ... [2024-10-24 00:49:12,373 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:49:12" (1/1) ... [2024-10-24 00:49:12,424 INFO L138 Inliner]: procedures = 128, calls = 192, calls flagged for inlining = 57, calls inlined = 48, statements flattened = 882 [2024-10-24 00:49:12,425 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-24 00:49:12,426 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-24 00:49:12,426 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-24 00:49:12,426 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-24 00:49:12,446 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:49:12" (1/1) ... [2024-10-24 00:49:12,446 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:49:12" (1/1) ... [2024-10-24 00:49:12,451 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:49:12" (1/1) ... [2024-10-24 00:49:12,487 INFO L175 MemorySlicer]: Split 14 memory accesses to 4 slices as follows [2, 4, 4, 4]. 29 percent of accesses are in the largest equivalence class. The 14 initializations are split as follows [2, 4, 4, 4]. The 0 writes are split as follows [0, 0, 0, 0]. [2024-10-24 00:49:12,488 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:49:12" (1/1) ... [2024-10-24 00:49:12,488 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:49:12" (1/1) ... [2024-10-24 00:49:12,513 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:49:12" (1/1) ... [2024-10-24 00:49:12,533 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:49:12" (1/1) ... [2024-10-24 00:49:12,538 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:49:12" (1/1) ... [2024-10-24 00:49:12,541 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:49:12" (1/1) ... [2024-10-24 00:49:12,549 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-24 00:49:12,550 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-24 00:49:12,550 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-24 00:49:12,550 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-24 00:49:12,551 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:49:12" (1/1) ... [2024-10-24 00:49:12,560 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 00:49:12,573 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 00:49:12,601 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-24 00:49:12,607 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-24 00:49:12,651 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2024-10-24 00:49:12,651 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2024-10-24 00:49:12,651 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2024-10-24 00:49:12,652 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2024-10-24 00:49:12,652 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2024-10-24 00:49:12,652 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2024-10-24 00:49:12,652 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2024-10-24 00:49:12,653 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2024-10-24 00:49:12,653 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2024-10-24 00:49:12,654 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2024-10-24 00:49:12,654 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2024-10-24 00:49:12,654 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2024-10-24 00:49:12,654 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2024-10-24 00:49:12,654 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2024-10-24 00:49:12,655 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2024-10-24 00:49:12,655 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2024-10-24 00:49:12,655 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-24 00:49:12,655 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2024-10-24 00:49:12,657 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2024-10-24 00:49:12,657 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2024-10-24 00:49:12,657 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2024-10-24 00:49:12,658 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2024-10-24 00:49:12,658 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2024-10-24 00:49:12,658 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2024-10-24 00:49:12,658 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2024-10-24 00:49:12,658 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2024-10-24 00:49:12,659 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2024-10-24 00:49:12,659 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2024-10-24 00:49:12,659 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2024-10-24 00:49:12,660 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2024-10-24 00:49:12,660 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2024-10-24 00:49:12,660 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2024-10-24 00:49:12,660 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2024-10-24 00:49:12,660 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2024-10-24 00:49:12,660 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2024-10-24 00:49:12,660 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2024-10-24 00:49:12,660 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2024-10-24 00:49:12,661 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-24 00:49:12,661 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-10-24 00:49:12,661 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-10-24 00:49:12,661 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-10-24 00:49:12,661 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2024-10-24 00:49:12,661 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2024-10-24 00:49:12,661 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-24 00:49:12,661 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-24 00:49:12,900 INFO L238 CfgBuilder]: Building ICFG [2024-10-24 00:49:12,903 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-24 00:49:13,777 INFO L? ?]: Removed 393 outVars from TransFormulas that were not future-live. [2024-10-24 00:49:13,777 INFO L287 CfgBuilder]: Performing block encoding [2024-10-24 00:49:13,859 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-24 00:49:13,862 INFO L314 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-24 00:49:13,863 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 12:49:13 BoogieIcfgContainer [2024-10-24 00:49:13,863 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-24 00:49:13,865 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-24 00:49:13,867 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-24 00:49:13,870 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-24 00:49:13,870 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 12:49:11" (1/3) ... [2024-10-24 00:49:13,871 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ba3a5c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 12:49:13, skipping insertion in model container [2024-10-24 00:49:13,871 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:49:12" (2/3) ... [2024-10-24 00:49:13,872 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ba3a5c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 12:49:13, skipping insertion in model container [2024-10-24 00:49:13,872 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 12:49:13" (3/3) ... [2024-10-24 00:49:13,873 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec3_product18.cil.c [2024-10-24 00:49:13,891 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-24 00:49:13,892 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-24 00:49:13,980 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-24 00:49:13,989 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;@5524b7a3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-24 00:49:13,990 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-24 00:49:13,998 INFO L276 IsEmpty]: Start isEmpty. Operand has 280 states, 213 states have (on average 1.596244131455399) internal successors, (340), 217 states have internal predecessors, (340), 46 states have call successors, (46), 19 states have call predecessors, (46), 19 states have return successors, (46), 45 states have call predecessors, (46), 46 states have call successors, (46) [2024-10-24 00:49:14,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2024-10-24 00:49:14,015 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 00:49:14,016 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 00:49:14,016 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 00:49:14,020 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 00:49:14,021 INFO L85 PathProgramCache]: Analyzing trace with hash 1909930120, now seen corresponding path program 1 times [2024-10-24 00:49:14,034 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 00:49:14,035 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1978075344] [2024-10-24 00:49:14,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 00:49:14,035 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 00:49:14,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:49:14,748 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 00:49:14,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:49:14,769 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 00:49:14,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:49:14,776 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 00:49:14,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:49:14,832 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 00:49:14,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:49:14,839 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-24 00:49:14,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:49:14,846 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 00:49:14,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:49:14,864 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-10-24 00:49:14,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:49:14,885 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-10-24 00:49:14,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:49:14,889 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-10-24 00:49:14,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:49:14,893 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-10-24 00:49:14,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:49:14,897 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-24 00:49:14,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:49:14,901 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-24 00:49:14,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:49:14,906 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-24 00:49:14,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:49:14,916 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-10-24 00:49:14,916 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 00:49:14,917 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1978075344] [2024-10-24 00:49:14,917 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1978075344] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 00:49:14,917 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1826449982] [2024-10-24 00:49:14,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 00:49:14,918 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 00:49:14,920 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 00:49:14,922 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-24 00:49:14,925 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-24 00:49:15,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:49:15,261 INFO L255 TraceCheckSpWp]: Trace formula consists of 1001 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-10-24 00:49:15,270 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 00:49:15,295 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-10-24 00:49:15,298 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 00:49:15,298 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1826449982] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 00:49:15,299 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-24 00:49:15,299 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [9] total 9 [2024-10-24 00:49:15,301 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1087501657] [2024-10-24 00:49:15,302 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 00:49:15,309 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-24 00:49:15,310 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 00:49:15,337 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-24 00:49:15,338 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-10-24 00:49:15,340 INFO L87 Difference]: Start difference. First operand has 280 states, 213 states have (on average 1.596244131455399) internal successors, (340), 217 states have internal predecessors, (340), 46 states have call successors, (46), 19 states have call predecessors, (46), 19 states have return successors, (46), 45 states have call predecessors, (46), 46 states have call successors, (46) Second operand has 2 states, 2 states have (on average 26.0) internal successors, (52), 2 states have internal predecessors, (52), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-10-24 00:49:15,461 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 00:49:15,463 INFO L93 Difference]: Finished difference Result 414 states and 627 transitions. [2024-10-24 00:49:15,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-24 00:49:15,466 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 26.0) internal successors, (52), 2 states have internal predecessors, (52), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 96 [2024-10-24 00:49:15,467 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 00:49:15,480 INFO L225 Difference]: With dead ends: 414 [2024-10-24 00:49:15,480 INFO L226 Difference]: Without dead ends: 276 [2024-10-24 00:49:15,485 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 125 GetRequests, 118 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-10-24 00:49:15,488 INFO L432 NwaCegarLoop]: 412 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 412 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-24 00:49:15,489 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 412 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 00:49:15,507 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 276 states. [2024-10-24 00:49:15,546 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 276 to 276. [2024-10-24 00:49:15,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 276 states, 211 states have (on average 1.5781990521327014) internal successors, (333), 213 states have internal predecessors, (333), 46 states have call successors, (46), 19 states have call predecessors, (46), 18 states have return successors, (43), 43 states have call predecessors, (43), 43 states have call successors, (43) [2024-10-24 00:49:15,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 276 states to 276 states and 422 transitions. [2024-10-24 00:49:15,555 INFO L78 Accepts]: Start accepts. Automaton has 276 states and 422 transitions. Word has length 96 [2024-10-24 00:49:15,557 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 00:49:15,557 INFO L471 AbstractCegarLoop]: Abstraction has 276 states and 422 transitions. [2024-10-24 00:49:15,557 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 26.0) internal successors, (52), 2 states have internal predecessors, (52), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-10-24 00:49:15,558 INFO L276 IsEmpty]: Start isEmpty. Operand 276 states and 422 transitions. [2024-10-24 00:49:15,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2024-10-24 00:49:15,563 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 00:49:15,564 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 00:49:15,579 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-10-24 00:49:15,765 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-10-24 00:49:15,766 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 00:49:15,766 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 00:49:15,766 INFO L85 PathProgramCache]: Analyzing trace with hash 1901730742, now seen corresponding path program 1 times [2024-10-24 00:49:15,766 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 00:49:15,767 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [521907539] [2024-10-24 00:49:15,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 00:49:15,767 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 00:49:15,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:49:16,046 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 00:49:16,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:49:16,068 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 00:49:16,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:49:16,072 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 00:49:16,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:49:16,101 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 00:49:16,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:49:16,106 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-24 00:49:16,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:49:16,112 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 00:49:16,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:49:16,127 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-10-24 00:49:16,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:49:16,144 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-10-24 00:49:16,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:49:16,149 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 00:49:16,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:49:16,154 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 00:49:16,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:49:16,157 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-24 00:49:16,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:49:16,166 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-10-24 00:49:16,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:49:16,170 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-10-24 00:49:16,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:49:16,174 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-10-24 00:49:16,175 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 00:49:16,175 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [521907539] [2024-10-24 00:49:16,175 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [521907539] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 00:49:16,175 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1111544474] [2024-10-24 00:49:16,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 00:49:16,176 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 00:49:16,176 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 00:49:16,178 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-24 00:49:16,179 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-24 00:49:16,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:49:16,453 INFO L255 TraceCheckSpWp]: Trace formula consists of 1002 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-24 00:49:16,457 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 00:49:16,485 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-10-24 00:49:16,486 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 00:49:16,486 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1111544474] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 00:49:16,486 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-24 00:49:16,486 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2024-10-24 00:49:16,487 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1445455465] [2024-10-24 00:49:16,487 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 00:49:16,488 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 00:49:16,488 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 00:49:16,489 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 00:49:16,489 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-10-24 00:49:16,489 INFO L87 Difference]: Start difference. First operand 276 states and 422 transitions. Second operand has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-10-24 00:49:16,551 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 00:49:16,552 INFO L93 Difference]: Finished difference Result 409 states and 610 transitions. [2024-10-24 00:49:16,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 00:49:16,553 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 97 [2024-10-24 00:49:16,553 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 00:49:16,556 INFO L225 Difference]: With dead ends: 409 [2024-10-24 00:49:16,557 INFO L226 Difference]: Without dead ends: 278 [2024-10-24 00:49:16,558 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 126 GetRequests, 118 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-10-24 00:49:16,559 INFO L432 NwaCegarLoop]: 409 mSDtfsCounter, 0 mSDsluCounter, 408 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 817 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-24 00:49:16,560 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 817 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 00:49:16,561 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 278 states. [2024-10-24 00:49:16,577 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 278 to 278. [2024-10-24 00:49:16,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 278 states, 213 states have (on average 1.5727699530516432) internal successors, (335), 215 states have internal predecessors, (335), 46 states have call successors, (46), 19 states have call predecessors, (46), 18 states have return successors, (43), 43 states have call predecessors, (43), 43 states have call successors, (43) [2024-10-24 00:49:16,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 278 states to 278 states and 424 transitions. [2024-10-24 00:49:16,581 INFO L78 Accepts]: Start accepts. Automaton has 278 states and 424 transitions. Word has length 97 [2024-10-24 00:49:16,581 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 00:49:16,582 INFO L471 AbstractCegarLoop]: Abstraction has 278 states and 424 transitions. [2024-10-24 00:49:16,582 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-10-24 00:49:16,582 INFO L276 IsEmpty]: Start isEmpty. Operand 278 states and 424 transitions. [2024-10-24 00:49:16,585 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2024-10-24 00:49:16,586 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 00:49:16,586 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 00:49:16,609 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-10-24 00:49:16,790 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2024-10-24 00:49:16,791 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 00:49:16,791 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 00:49:16,792 INFO L85 PathProgramCache]: Analyzing trace with hash -939872801, now seen corresponding path program 1 times [2024-10-24 00:49:16,792 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 00:49:16,792 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2119159220] [2024-10-24 00:49:16,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 00:49:16,792 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 00:49:16,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:49:16,979 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 00:49:16,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:49:16,991 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 00:49:16,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:49:16,995 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 00:49:16,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:49:17,017 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 00:49:17,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:49:17,021 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-24 00:49:17,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:49:17,025 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 00:49:17,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:49:17,038 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-24 00:49:17,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:49:17,052 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-10-24 00:49:17,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:49:17,056 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-10-24 00:49:17,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:49:17,059 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-10-24 00:49:17,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:49:17,063 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-10-24 00:49:17,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:49:17,069 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-10-24 00:49:17,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:49:17,072 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-10-24 00:49:17,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:49:17,080 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-10-24 00:49:17,081 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 00:49:17,081 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2119159220] [2024-10-24 00:49:17,081 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2119159220] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 00:49:17,081 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [465192595] [2024-10-24 00:49:17,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 00:49:17,081 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 00:49:17,081 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 00:49:17,085 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-24 00:49:17,088 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-10-24 00:49:17,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:49:17,370 INFO L255 TraceCheckSpWp]: Trace formula consists of 1026 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-24 00:49:17,374 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 00:49:17,403 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-10-24 00:49:17,404 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 00:49:17,405 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [465192595] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 00:49:17,405 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-24 00:49:17,405 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2024-10-24 00:49:17,405 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1634233475] [2024-10-24 00:49:17,405 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 00:49:17,406 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 00:49:17,406 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 00:49:17,407 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 00:49:17,408 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-10-24 00:49:17,408 INFO L87 Difference]: Start difference. First operand 278 states and 424 transitions. Second operand has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-10-24 00:49:17,501 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 00:49:17,501 INFO L93 Difference]: Finished difference Result 586 states and 907 transitions. [2024-10-24 00:49:17,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 00:49:17,504 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 104 [2024-10-24 00:49:17,504 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 00:49:17,510 INFO L225 Difference]: With dead ends: 586 [2024-10-24 00:49:17,511 INFO L226 Difference]: Without dead ends: 330 [2024-10-24 00:49:17,513 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 133 GetRequests, 125 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-10-24 00:49:17,514 INFO L432 NwaCegarLoop]: 419 mSDtfsCounter, 102 mSDsluCounter, 365 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 117 SdHoareTripleChecker+Valid, 784 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 00:49:17,515 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [117 Valid, 784 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 00:49:17,516 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 330 states. [2024-10-24 00:49:17,533 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 330 to 325. [2024-10-24 00:49:17,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 325 states, 249 states have (on average 1.5863453815261044) internal successors, (395), 251 states have internal predecessors, (395), 57 states have call successors, (57), 19 states have call predecessors, (57), 18 states have return successors, (54), 54 states have call predecessors, (54), 54 states have call successors, (54) [2024-10-24 00:49:17,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 325 states to 325 states and 506 transitions. [2024-10-24 00:49:17,538 INFO L78 Accepts]: Start accepts. Automaton has 325 states and 506 transitions. Word has length 104 [2024-10-24 00:49:17,539 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 00:49:17,539 INFO L471 AbstractCegarLoop]: Abstraction has 325 states and 506 transitions. [2024-10-24 00:49:17,539 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-10-24 00:49:17,539 INFO L276 IsEmpty]: Start isEmpty. Operand 325 states and 506 transitions. [2024-10-24 00:49:17,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2024-10-24 00:49:17,542 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 00:49:17,542 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 00:49:17,562 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-10-24 00:49:17,742 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 00:49:17,744 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 00:49:17,744 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 00:49:17,744 INFO L85 PathProgramCache]: Analyzing trace with hash -9365101, now seen corresponding path program 1 times [2024-10-24 00:49:17,744 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 00:49:17,745 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2060133561] [2024-10-24 00:49:17,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 00:49:17,745 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 00:49:17,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:49:17,929 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 00:49:17,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:49:17,940 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 00:49:17,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:49:17,944 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 00:49:17,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:49:17,962 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 00:49:17,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:49:17,966 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-24 00:49:17,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:49:17,970 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 00:49:17,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:49:17,981 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-24 00:49:17,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:49:17,994 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-24 00:49:17,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:49:17,997 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-10-24 00:49:17,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:49:17,998 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-10-24 00:49:17,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:49:18,000 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-10-24 00:49:18,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:49:18,002 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-10-24 00:49:18,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:49:18,004 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-24 00:49:18,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:49:18,007 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-10-24 00:49:18,007 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 00:49:18,007 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2060133561] [2024-10-24 00:49:18,007 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2060133561] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 00:49:18,007 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [879732872] [2024-10-24 00:49:18,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 00:49:18,008 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 00:49:18,008 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 00:49:18,010 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-24 00:49:18,011 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-10-24 00:49:18,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:49:18,293 INFO L255 TraceCheckSpWp]: Trace formula consists of 1031 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-10-24 00:49:18,298 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 00:49:18,372 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-10-24 00:49:18,372 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 00:49:18,372 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [879732872] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 00:49:18,373 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-24 00:49:18,373 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 12 [2024-10-24 00:49:18,373 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1570841180] [2024-10-24 00:49:18,373 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 00:49:18,374 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 00:49:18,376 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 00:49:18,377 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 00:49:18,377 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2024-10-24 00:49:18,377 INFO L87 Difference]: Start difference. First operand 325 states and 506 transitions. Second operand has 5 states, 4 states have (on average 17.25) internal successors, (69), 5 states have internal predecessors, (69), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) [2024-10-24 00:49:18,487 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 00:49:18,487 INFO L93 Difference]: Finished difference Result 645 states and 1006 transitions. [2024-10-24 00:49:18,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-24 00:49:18,489 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 17.25) internal successors, (69), 5 states have internal predecessors, (69), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) Word has length 105 [2024-10-24 00:49:18,489 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 00:49:18,495 INFO L225 Difference]: With dead ends: 645 [2024-10-24 00:49:18,495 INFO L226 Difference]: Without dead ends: 327 [2024-10-24 00:49:18,496 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 134 GetRequests, 124 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2024-10-24 00:49:18,498 INFO L432 NwaCegarLoop]: 401 mSDtfsCounter, 2 mSDsluCounter, 1192 mSDsCounter, 0 mSdLazyCounter, 89 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 1593 SdHoareTripleChecker+Invalid, 89 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 89 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 00:49:18,498 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 1593 Invalid, 89 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 89 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 00:49:18,502 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 327 states. [2024-10-24 00:49:18,528 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 327 to 327. [2024-10-24 00:49:18,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 327 states, 250 states have (on average 1.584) internal successors, (396), 253 states have internal predecessors, (396), 57 states have call successors, (57), 19 states have call predecessors, (57), 19 states have return successors, (56), 54 states have call predecessors, (56), 54 states have call successors, (56) [2024-10-24 00:49:18,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 327 states to 327 states and 509 transitions. [2024-10-24 00:49:18,533 INFO L78 Accepts]: Start accepts. Automaton has 327 states and 509 transitions. Word has length 105 [2024-10-24 00:49:18,533 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 00:49:18,534 INFO L471 AbstractCegarLoop]: Abstraction has 327 states and 509 transitions. [2024-10-24 00:49:18,534 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 17.25) internal successors, (69), 5 states have internal predecessors, (69), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) [2024-10-24 00:49:18,534 INFO L276 IsEmpty]: Start isEmpty. Operand 327 states and 509 transitions. [2024-10-24 00:49:18,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2024-10-24 00:49:18,539 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 00:49:18,539 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 00:49:18,557 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-10-24 00:49:18,739 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 00:49:18,740 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 00:49:18,740 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 00:49:18,741 INFO L85 PathProgramCache]: Analyzing trace with hash -486732218, now seen corresponding path program 1 times [2024-10-24 00:49:18,741 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 00:49:18,741 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [398898516] [2024-10-24 00:49:18,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 00:49:18,741 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 00:49:18,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:49:18,904 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 00:49:18,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:49:18,916 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 00:49:18,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:49:18,921 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 00:49:18,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:49:18,950 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-24 00:49:18,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:49:18,976 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-10-24 00:49:18,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:49:18,979 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-10-24 00:49:18,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:49:18,995 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-10-24 00:49:18,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:49:19,013 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-24 00:49:19,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:49:19,018 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-10-24 00:49:19,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:49:19,021 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-10-24 00:49:19,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:49:19,024 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-10-24 00:49:19,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:49:19,026 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-10-24 00:49:19,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:49:19,029 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-10-24 00:49:19,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:49:19,033 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-10-24 00:49:19,033 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 00:49:19,033 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [398898516] [2024-10-24 00:49:19,033 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [398898516] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 00:49:19,033 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [898357787] [2024-10-24 00:49:19,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 00:49:19,034 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 00:49:19,034 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 00:49:19,036 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-24 00:49:19,039 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-10-24 00:49:19,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:49:19,319 INFO L255 TraceCheckSpWp]: Trace formula consists of 1032 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-10-24 00:49:19,323 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 00:49:19,381 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-10-24 00:49:19,381 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 00:49:19,382 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [898357787] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 00:49:19,382 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-24 00:49:19,382 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [12] total 15 [2024-10-24 00:49:19,382 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [217802456] [2024-10-24 00:49:19,382 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 00:49:19,383 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 00:49:19,383 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 00:49:19,384 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 00:49:19,384 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=180, Unknown=0, NotChecked=0, Total=210 [2024-10-24 00:49:19,384 INFO L87 Difference]: Start difference. First operand 327 states and 509 transitions. Second operand has 5 states, 5 states have (on average 14.2) internal successors, (71), 5 states have internal predecessors, (71), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2024-10-24 00:49:19,484 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 00:49:19,485 INFO L93 Difference]: Finished difference Result 647 states and 1011 transitions. [2024-10-24 00:49:19,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-24 00:49:19,485 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.2) internal successors, (71), 5 states have internal predecessors, (71), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) Word has length 106 [2024-10-24 00:49:19,486 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 00:49:19,488 INFO L225 Difference]: With dead ends: 647 [2024-10-24 00:49:19,488 INFO L226 Difference]: Without dead ends: 329 [2024-10-24 00:49:19,490 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 137 GetRequests, 124 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=180, Unknown=0, NotChecked=0, Total=210 [2024-10-24 00:49:19,490 INFO L432 NwaCegarLoop]: 399 mSDtfsCounter, 2 mSDsluCounter, 1180 mSDsCounter, 0 mSdLazyCounter, 101 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 1579 SdHoareTripleChecker+Invalid, 101 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 101 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 00:49:19,491 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 1579 Invalid, 101 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 101 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 00:49:19,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 329 states. [2024-10-24 00:49:19,505 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 329 to 329. [2024-10-24 00:49:19,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 329 states, 251 states have (on average 1.5816733067729083) internal successors, (397), 255 states have internal predecessors, (397), 57 states have call successors, (57), 19 states have call predecessors, (57), 20 states have return successors, (61), 54 states have call predecessors, (61), 54 states have call successors, (61) [2024-10-24 00:49:19,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 329 states to 329 states and 515 transitions. [2024-10-24 00:49:19,510 INFO L78 Accepts]: Start accepts. Automaton has 329 states and 515 transitions. Word has length 106 [2024-10-24 00:49:19,510 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 00:49:19,510 INFO L471 AbstractCegarLoop]: Abstraction has 329 states and 515 transitions. [2024-10-24 00:49:19,511 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.2) internal successors, (71), 5 states have internal predecessors, (71), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2024-10-24 00:49:19,511 INFO L276 IsEmpty]: Start isEmpty. Operand 329 states and 515 transitions. [2024-10-24 00:49:19,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-10-24 00:49:19,513 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 00:49:19,513 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 00:49:19,536 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-10-24 00:49:19,713 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 00:49:19,714 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 00:49:19,714 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 00:49:19,714 INFO L85 PathProgramCache]: Analyzing trace with hash 1502571187, now seen corresponding path program 1 times [2024-10-24 00:49:19,715 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 00:49:19,715 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2020912780] [2024-10-24 00:49:19,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 00:49:19,715 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 00:49:19,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:49:19,854 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 00:49:19,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:49:19,869 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 00:49:19,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:49:19,874 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 00:49:19,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:49:19,878 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-24 00:49:19,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:49:19,882 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-24 00:49:19,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:49:19,908 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-10-24 00:49:19,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:49:19,921 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-10-24 00:49:19,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:49:19,934 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-10-24 00:49:19,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:49:19,937 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-10-24 00:49:19,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:49:19,940 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-10-24 00:49:19,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:49:19,946 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-24 00:49:19,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:49:19,950 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-10-24 00:49:19,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:49:19,953 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2024-10-24 00:49:19,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:49:19,958 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-10-24 00:49:19,958 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 00:49:19,958 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2020912780] [2024-10-24 00:49:19,958 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2020912780] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 00:49:19,958 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 00:49:19,959 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-10-24 00:49:19,959 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1622489044] [2024-10-24 00:49:19,959 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 00:49:19,960 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-24 00:49:19,960 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 00:49:19,961 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-24 00:49:19,962 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-10-24 00:49:19,962 INFO L87 Difference]: Start difference. First operand 329 states and 515 transitions. Second operand has 9 states, 8 states have (on average 8.375) internal successors, (67), 5 states have internal predecessors, (67), 3 states have call successors, (16), 6 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) [2024-10-24 00:49:21,676 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 00:49:21,676 INFO L93 Difference]: Finished difference Result 718 states and 1135 transitions. [2024-10-24 00:49:21,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-10-24 00:49:21,677 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 8.375) internal successors, (67), 5 states have internal predecessors, (67), 3 states have call successors, (16), 6 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) Word has length 107 [2024-10-24 00:49:21,677 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 00:49:21,680 INFO L225 Difference]: With dead ends: 718 [2024-10-24 00:49:21,680 INFO L226 Difference]: Without dead ends: 408 [2024-10-24 00:49:21,682 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=72, Invalid=200, Unknown=0, NotChecked=0, Total=272 [2024-10-24 00:49:21,684 INFO L432 NwaCegarLoop]: 160 mSDtfsCounter, 875 mSDsluCounter, 807 mSDsCounter, 0 mSdLazyCounter, 1867 mSolverCounterSat, 273 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 876 SdHoareTripleChecker+Valid, 967 SdHoareTripleChecker+Invalid, 2140 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 273 IncrementalHoareTripleChecker+Valid, 1867 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-10-24 00:49:21,684 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [876 Valid, 967 Invalid, 2140 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [273 Valid, 1867 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-10-24 00:49:21,686 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 408 states. [2024-10-24 00:49:21,720 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 408 to 329. [2024-10-24 00:49:21,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 329 states, 251 states have (on average 1.5816733067729083) internal successors, (397), 255 states have internal predecessors, (397), 57 states have call successors, (57), 19 states have call predecessors, (57), 20 states have return successors, (60), 54 states have call predecessors, (60), 54 states have call successors, (60) [2024-10-24 00:49:21,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 329 states to 329 states and 514 transitions. [2024-10-24 00:49:21,723 INFO L78 Accepts]: Start accepts. Automaton has 329 states and 514 transitions. Word has length 107 [2024-10-24 00:49:21,724 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 00:49:21,724 INFO L471 AbstractCegarLoop]: Abstraction has 329 states and 514 transitions. [2024-10-24 00:49:21,724 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 8.375) internal successors, (67), 5 states have internal predecessors, (67), 3 states have call successors, (16), 6 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) [2024-10-24 00:49:21,724 INFO L276 IsEmpty]: Start isEmpty. Operand 329 states and 514 transitions. [2024-10-24 00:49:21,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-10-24 00:49:21,727 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 00:49:21,727 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 00:49:21,727 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-24 00:49:21,727 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 00:49:21,728 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 00:49:21,728 INFO L85 PathProgramCache]: Analyzing trace with hash -1499312252, now seen corresponding path program 2 times [2024-10-24 00:49:21,728 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 00:49:21,728 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1842218982] [2024-10-24 00:49:21,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 00:49:21,728 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 00:49:21,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:49:21,851 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 00:49:21,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:49:21,864 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 00:49:21,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:49:21,867 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 00:49:21,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:49:21,871 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-24 00:49:21,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:49:21,874 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-24 00:49:21,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:49:21,903 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-24 00:49:21,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:49:21,915 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-10-24 00:49:21,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:49:21,926 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-10-24 00:49:21,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:49:21,928 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-24 00:49:21,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:49:21,930 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-10-24 00:49:21,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:49:21,932 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-10-24 00:49:21,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:49:21,935 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-24 00:49:21,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:49:21,937 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-24 00:49:21,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:49:21,940 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-10-24 00:49:21,940 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 00:49:21,940 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1842218982] [2024-10-24 00:49:21,940 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1842218982] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 00:49:21,940 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 00:49:21,940 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-10-24 00:49:21,940 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1075566486] [2024-10-24 00:49:21,941 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 00:49:21,941 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-24 00:49:21,941 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 00:49:21,942 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-24 00:49:21,943 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-10-24 00:49:21,943 INFO L87 Difference]: Start difference. First operand 329 states and 514 transitions. Second operand has 9 states, 8 states have (on average 8.5) internal successors, (68), 5 states have internal predecessors, (68), 3 states have call successors, (16), 6 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) [2024-10-24 00:49:23,573 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 00:49:23,574 INFO L93 Difference]: Finished difference Result 720 states and 1138 transitions. [2024-10-24 00:49:23,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-10-24 00:49:23,575 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 8.5) internal successors, (68), 5 states have internal predecessors, (68), 3 states have call successors, (16), 6 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) Word has length 108 [2024-10-24 00:49:23,575 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 00:49:23,581 INFO L225 Difference]: With dead ends: 720 [2024-10-24 00:49:23,581 INFO L226 Difference]: Without dead ends: 410 [2024-10-24 00:49:23,582 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=72, Invalid=200, Unknown=0, NotChecked=0, Total=272 [2024-10-24 00:49:23,583 INFO L432 NwaCegarLoop]: 161 mSDtfsCounter, 870 mSDsluCounter, 807 mSDsCounter, 0 mSdLazyCounter, 1894 mSolverCounterSat, 271 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 871 SdHoareTripleChecker+Valid, 968 SdHoareTripleChecker+Invalid, 2165 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 271 IncrementalHoareTripleChecker+Valid, 1894 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-10-24 00:49:23,584 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [871 Valid, 968 Invalid, 2165 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [271 Valid, 1894 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-10-24 00:49:23,584 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 410 states. [2024-10-24 00:49:23,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 410 to 331. [2024-10-24 00:49:23,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 331 states, 252 states have (on average 1.5793650793650793) internal successors, (398), 257 states have internal predecessors, (398), 57 states have call successors, (57), 19 states have call predecessors, (57), 21 states have return successors, (62), 54 states have call predecessors, (62), 54 states have call successors, (62) [2024-10-24 00:49:23,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 331 states to 331 states and 517 transitions. [2024-10-24 00:49:23,618 INFO L78 Accepts]: Start accepts. Automaton has 331 states and 517 transitions. Word has length 108 [2024-10-24 00:49:23,618 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 00:49:23,619 INFO L471 AbstractCegarLoop]: Abstraction has 331 states and 517 transitions. [2024-10-24 00:49:23,619 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 8.5) internal successors, (68), 5 states have internal predecessors, (68), 3 states have call successors, (16), 6 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) [2024-10-24 00:49:23,619 INFO L276 IsEmpty]: Start isEmpty. Operand 331 states and 517 transitions. [2024-10-24 00:49:23,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-10-24 00:49:23,620 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 00:49:23,621 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 00:49:23,621 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-24 00:49:23,621 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 00:49:23,621 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 00:49:23,621 INFO L85 PathProgramCache]: Analyzing trace with hash -754344, now seen corresponding path program 1 times [2024-10-24 00:49:23,622 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 00:49:23,622 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1769760198] [2024-10-24 00:49:23,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 00:49:23,622 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 00:49:23,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:49:23,731 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 00:49:23,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:49:23,741 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 00:49:23,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:49:23,744 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 00:49:23,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:49:23,746 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-24 00:49:23,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:49:23,748 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-24 00:49:23,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:49:23,805 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-24 00:49:23,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:49:23,843 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-10-24 00:49:23,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:49:23,860 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-10-24 00:49:23,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:49:23,863 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-24 00:49:23,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:49:23,865 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-24 00:49:23,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:49:23,875 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-24 00:49:23,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:49:23,877 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-10-24 00:49:23,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:49:23,883 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-10-24 00:49:23,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:49:23,889 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-10-24 00:49:23,890 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 00:49:23,890 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1769760198] [2024-10-24 00:49:23,890 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1769760198] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 00:49:23,890 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 00:49:23,890 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-10-24 00:49:23,890 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [981610141] [2024-10-24 00:49:23,890 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 00:49:23,891 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-10-24 00:49:23,891 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 00:49:23,892 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-10-24 00:49:23,895 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2024-10-24 00:49:23,896 INFO L87 Difference]: Start difference. First operand 331 states and 517 transitions. Second operand has 12 states, 11 states have (on average 6.545454545454546) internal successors, (72), 8 states have internal predecessors, (72), 4 states have call successors, (16), 6 states have call predecessors, (16), 3 states have return successors, (13), 3 states have call predecessors, (13), 4 states have call successors, (13) [2024-10-24 00:49:26,099 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 00:49:26,099 INFO L93 Difference]: Finished difference Result 718 states and 1133 transitions. [2024-10-24 00:49:26,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-24 00:49:26,100 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 6.545454545454546) internal successors, (72), 8 states have internal predecessors, (72), 4 states have call successors, (16), 6 states have call predecessors, (16), 3 states have return successors, (13), 3 states have call predecessors, (13), 4 states have call successors, (13) Word has length 109 [2024-10-24 00:49:26,100 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 00:49:26,103 INFO L225 Difference]: With dead ends: 718 [2024-10-24 00:49:26,103 INFO L226 Difference]: Without dead ends: 410 [2024-10-24 00:49:26,105 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=102, Invalid=404, Unknown=0, NotChecked=0, Total=506 [2024-10-24 00:49:26,106 INFO L432 NwaCegarLoop]: 158 mSDtfsCounter, 875 mSDsluCounter, 1184 mSDsCounter, 0 mSdLazyCounter, 3105 mSolverCounterSat, 279 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 876 SdHoareTripleChecker+Valid, 1342 SdHoareTripleChecker+Invalid, 3384 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 279 IncrementalHoareTripleChecker+Valid, 3105 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-10-24 00:49:26,106 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [876 Valid, 1342 Invalid, 3384 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [279 Valid, 3105 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-10-24 00:49:26,107 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 410 states. [2024-10-24 00:49:26,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 410 to 331. [2024-10-24 00:49:26,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 331 states, 252 states have (on average 1.5793650793650793) internal successors, (398), 257 states have internal predecessors, (398), 57 states have call successors, (57), 19 states have call predecessors, (57), 21 states have return successors, (61), 54 states have call predecessors, (61), 54 states have call successors, (61) [2024-10-24 00:49:26,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 331 states to 331 states and 516 transitions. [2024-10-24 00:49:26,144 INFO L78 Accepts]: Start accepts. Automaton has 331 states and 516 transitions. Word has length 109 [2024-10-24 00:49:26,144 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 00:49:26,144 INFO L471 AbstractCegarLoop]: Abstraction has 331 states and 516 transitions. [2024-10-24 00:49:26,145 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 6.545454545454546) internal successors, (72), 8 states have internal predecessors, (72), 4 states have call successors, (16), 6 states have call predecessors, (16), 3 states have return successors, (13), 3 states have call predecessors, (13), 4 states have call successors, (13) [2024-10-24 00:49:26,145 INFO L276 IsEmpty]: Start isEmpty. Operand 331 states and 516 transitions. [2024-10-24 00:49:26,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2024-10-24 00:49:26,147 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 00:49:26,147 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 00:49:26,148 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-24 00:49:26,148 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 00:49:26,148 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 00:49:26,148 INFO L85 PathProgramCache]: Analyzing trace with hash 1339615483, now seen corresponding path program 2 times [2024-10-24 00:49:26,148 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 00:49:26,149 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [735943839] [2024-10-24 00:49:26,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 00:49:26,149 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 00:49:26,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:49:26,269 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 00:49:26,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:49:26,280 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 00:49:26,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:49:26,283 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 00:49:26,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:49:26,286 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-24 00:49:26,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:49:26,289 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-24 00:49:26,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:49:26,322 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-24 00:49:26,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:49:26,356 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-24 00:49:26,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:49:26,371 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-10-24 00:49:26,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:49:26,375 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-10-24 00:49:26,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:49:26,377 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-10-24 00:49:26,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:49:26,380 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-10-24 00:49:26,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:49:26,386 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-10-24 00:49:26,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:49:26,388 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-10-24 00:49:26,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:49:26,394 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-10-24 00:49:26,395 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 00:49:26,395 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [735943839] [2024-10-24 00:49:26,395 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [735943839] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 00:49:26,395 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 00:49:26,395 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-10-24 00:49:26,395 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [548566002] [2024-10-24 00:49:26,395 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 00:49:26,395 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-10-24 00:49:26,395 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 00:49:26,396 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-10-24 00:49:26,400 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2024-10-24 00:49:26,401 INFO L87 Difference]: Start difference. First operand 331 states and 516 transitions. Second operand has 12 states, 11 states have (on average 6.636363636363637) internal successors, (73), 8 states have internal predecessors, (73), 4 states have call successors, (16), 6 states have call predecessors, (16), 3 states have return successors, (13), 3 states have call predecessors, (13), 4 states have call successors, (13) [2024-10-24 00:49:28,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 00:49:28,438 INFO L93 Difference]: Finished difference Result 720 states and 1139 transitions. [2024-10-24 00:49:28,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-24 00:49:28,438 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 6.636363636363637) internal successors, (73), 8 states have internal predecessors, (73), 4 states have call successors, (16), 6 states have call predecessors, (16), 3 states have return successors, (13), 3 states have call predecessors, (13), 4 states have call successors, (13) Word has length 110 [2024-10-24 00:49:28,439 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 00:49:28,442 INFO L225 Difference]: With dead ends: 720 [2024-10-24 00:49:28,442 INFO L226 Difference]: Without dead ends: 412 [2024-10-24 00:49:28,444 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=102, Invalid=404, Unknown=0, NotChecked=0, Total=506 [2024-10-24 00:49:28,446 INFO L432 NwaCegarLoop]: 160 mSDtfsCounter, 870 mSDsluCounter, 1184 mSDsCounter, 0 mSdLazyCounter, 3174 mSolverCounterSat, 274 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 871 SdHoareTripleChecker+Valid, 1344 SdHoareTripleChecker+Invalid, 3448 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 274 IncrementalHoareTripleChecker+Valid, 3174 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-10-24 00:49:28,447 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [871 Valid, 1344 Invalid, 3448 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [274 Valid, 3174 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-10-24 00:49:28,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 412 states. [2024-10-24 00:49:28,474 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 412 to 333. [2024-10-24 00:49:28,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 333 states, 253 states have (on average 1.5770750988142292) internal successors, (399), 259 states have internal predecessors, (399), 57 states have call successors, (57), 19 states have call predecessors, (57), 22 states have return successors, (66), 54 states have call predecessors, (66), 54 states have call successors, (66) [2024-10-24 00:49:28,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 333 states to 333 states and 522 transitions. [2024-10-24 00:49:28,478 INFO L78 Accepts]: Start accepts. Automaton has 333 states and 522 transitions. Word has length 110 [2024-10-24 00:49:28,479 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 00:49:28,479 INFO L471 AbstractCegarLoop]: Abstraction has 333 states and 522 transitions. [2024-10-24 00:49:28,479 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 6.636363636363637) internal successors, (73), 8 states have internal predecessors, (73), 4 states have call successors, (16), 6 states have call predecessors, (16), 3 states have return successors, (13), 3 states have call predecessors, (13), 4 states have call successors, (13) [2024-10-24 00:49:28,479 INFO L276 IsEmpty]: Start isEmpty. Operand 333 states and 522 transitions. [2024-10-24 00:49:28,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-10-24 00:49:28,481 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 00:49:28,481 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 00:49:28,482 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-24 00:49:28,482 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 00:49:28,482 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 00:49:28,482 INFO L85 PathProgramCache]: Analyzing trace with hash 1817997821, now seen corresponding path program 1 times [2024-10-24 00:49:28,482 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 00:49:28,483 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1439369699] [2024-10-24 00:49:28,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 00:49:28,483 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 00:49:28,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:49:28,659 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 00:49:28,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:49:28,672 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 00:49:28,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:49:28,674 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 00:49:28,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:49:28,711 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-24 00:49:28,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:49:28,719 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-24 00:49:28,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:49:28,725 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-24 00:49:28,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:49:28,746 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-24 00:49:28,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:49:28,759 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 00:49:28,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:49:28,761 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-10-24 00:49:28,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:49:28,762 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-10-24 00:49:28,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:49:28,764 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-10-24 00:49:28,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:49:28,769 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-24 00:49:28,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:49:28,772 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-10-24 00:49:28,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:49:28,774 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2024-10-24 00:49:28,774 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 00:49:28,775 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1439369699] [2024-10-24 00:49:28,775 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1439369699] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 00:49:28,775 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1984334720] [2024-10-24 00:49:28,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 00:49:28,775 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 00:49:28,775 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 00:49:28,777 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-24 00:49:28,778 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-10-24 00:49:29,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:49:29,057 INFO L255 TraceCheckSpWp]: Trace formula consists of 1037 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-24 00:49:29,062 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 00:49:29,108 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-10-24 00:49:29,109 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-24 00:49:29,224 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-10-24 00:49:29,224 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1984334720] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-24 00:49:29,224 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-24 00:49:29,224 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 4, 4] total 15 [2024-10-24 00:49:29,225 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1866684349] [2024-10-24 00:49:29,227 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-24 00:49:29,227 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-10-24 00:49:29,228 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 00:49:29,228 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-10-24 00:49:29,228 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=177, Unknown=0, NotChecked=0, Total=210 [2024-10-24 00:49:29,229 INFO L87 Difference]: Start difference. First operand 333 states and 522 transitions. Second operand has 15 states, 14 states have (on average 8.714285714285714) internal successors, (122), 11 states have internal predecessors, (122), 4 states have call successors, (32), 6 states have call predecessors, (32), 3 states have return successors, (24), 3 states have call predecessors, (24), 4 states have call successors, (24) [2024-10-24 00:49:31,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 00:49:31,896 INFO L93 Difference]: Finished difference Result 1049 states and 1750 transitions. [2024-10-24 00:49:31,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-10-24 00:49:31,897 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 8.714285714285714) internal successors, (122), 11 states have internal predecessors, (122), 4 states have call successors, (32), 6 states have call predecessors, (32), 3 states have return successors, (24), 3 states have call predecessors, (24), 4 states have call successors, (24) Word has length 111 [2024-10-24 00:49:31,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 00:49:31,904 INFO L225 Difference]: With dead ends: 1049 [2024-10-24 00:49:31,904 INFO L226 Difference]: Without dead ends: 742 [2024-10-24 00:49:31,906 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 273 GetRequests, 243 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 149 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=164, Invalid=828, Unknown=0, NotChecked=0, Total=992 [2024-10-24 00:49:31,907 INFO L432 NwaCegarLoop]: 158 mSDtfsCounter, 1835 mSDsluCounter, 1496 mSDsCounter, 0 mSdLazyCounter, 4118 mSolverCounterSat, 565 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1852 SdHoareTripleChecker+Valid, 1654 SdHoareTripleChecker+Invalid, 4683 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 565 IncrementalHoareTripleChecker+Valid, 4118 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2024-10-24 00:49:31,908 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1852 Valid, 1654 Invalid, 4683 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [565 Valid, 4118 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2024-10-24 00:49:31,910 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 742 states. [2024-10-24 00:49:31,948 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 742 to 648. [2024-10-24 00:49:31,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 648 states, 504 states have (on average 1.621031746031746) internal successors, (817), 510 states have internal predecessors, (817), 121 states have call successors, (121), 19 states have call predecessors, (121), 22 states have return successors, (140), 118 states have call predecessors, (140), 118 states have call successors, (140) [2024-10-24 00:49:31,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 648 states to 648 states and 1078 transitions. [2024-10-24 00:49:31,953 INFO L78 Accepts]: Start accepts. Automaton has 648 states and 1078 transitions. Word has length 111 [2024-10-24 00:49:31,954 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 00:49:31,954 INFO L471 AbstractCegarLoop]: Abstraction has 648 states and 1078 transitions. [2024-10-24 00:49:31,955 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 8.714285714285714) internal successors, (122), 11 states have internal predecessors, (122), 4 states have call successors, (32), 6 states have call predecessors, (32), 3 states have return successors, (24), 3 states have call predecessors, (24), 4 states have call successors, (24) [2024-10-24 00:49:31,955 INFO L276 IsEmpty]: Start isEmpty. Operand 648 states and 1078 transitions. [2024-10-24 00:49:31,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2024-10-24 00:49:31,959 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 00:49:31,959 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 00:49:31,980 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-10-24 00:49:32,163 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 00:49:32,164 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 00:49:32,164 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 00:49:32,165 INFO L85 PathProgramCache]: Analyzing trace with hash -261678472, now seen corresponding path program 1 times [2024-10-24 00:49:32,165 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 00:49:32,165 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2059995146] [2024-10-24 00:49:32,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 00:49:32,165 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 00:49:32,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:49:32,227 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 00:49:32,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:49:32,238 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 00:49:32,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:49:32,241 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 00:49:32,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:49:32,243 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-24 00:49:32,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:49:32,245 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-24 00:49:32,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:49:32,248 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-24 00:49:32,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:49:32,257 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-10-24 00:49:32,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:49:32,266 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-10-24 00:49:32,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:49:32,303 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-24 00:49:32,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:49:32,305 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-24 00:49:32,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:49:32,308 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-24 00:49:32,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:49:32,310 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-10-24 00:49:32,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:49:32,312 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-10-24 00:49:32,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:49:32,315 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-10-24 00:49:32,316 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 00:49:32,316 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2059995146] [2024-10-24 00:49:32,316 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2059995146] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 00:49:32,316 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 00:49:32,317 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 00:49:32,317 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1944487245] [2024-10-24 00:49:32,317 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 00:49:32,317 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 00:49:32,318 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 00:49:32,318 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 00:49:32,318 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 00:49:32,319 INFO L87 Difference]: Start difference. First operand 648 states and 1078 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, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-10-24 00:49:33,506 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 00:49:33,506 INFO L93 Difference]: Finished difference Result 1604 states and 2739 transitions. [2024-10-24 00:49:33,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-24 00:49:33,506 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, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 115 [2024-10-24 00:49:33,507 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 00:49:33,514 INFO L225 Difference]: With dead ends: 1604 [2024-10-24 00:49:33,514 INFO L226 Difference]: Without dead ends: 1024 [2024-10-24 00:49:33,517 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-10-24 00:49:33,518 INFO L432 NwaCegarLoop]: 184 mSDtfsCounter, 969 mSDsluCounter, 572 mSDsCounter, 0 mSdLazyCounter, 1116 mSolverCounterSat, 317 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 984 SdHoareTripleChecker+Valid, 756 SdHoareTripleChecker+Invalid, 1433 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 317 IncrementalHoareTripleChecker+Valid, 1116 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-10-24 00:49:33,518 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [984 Valid, 756 Invalid, 1433 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [317 Valid, 1116 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-10-24 00:49:33,520 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1024 states. [2024-10-24 00:49:33,568 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1024 to 940. [2024-10-24 00:49:33,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 940 states, 732 states have (on average 1.6311475409836065) internal successors, (1194), 738 states have internal predecessors, (1194), 185 states have call successors, (185), 19 states have call predecessors, (185), 22 states have return successors, (214), 182 states have call predecessors, (214), 182 states have call successors, (214) [2024-10-24 00:49:33,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 940 states to 940 states and 1593 transitions. [2024-10-24 00:49:33,575 INFO L78 Accepts]: Start accepts. Automaton has 940 states and 1593 transitions. Word has length 115 [2024-10-24 00:49:33,576 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 00:49:33,576 INFO L471 AbstractCegarLoop]: Abstraction has 940 states and 1593 transitions. [2024-10-24 00:49:33,576 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, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-10-24 00:49:33,576 INFO L276 IsEmpty]: Start isEmpty. Operand 940 states and 1593 transitions. [2024-10-24 00:49:33,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2024-10-24 00:49:33,582 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 00:49:33,582 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 00:49:33,582 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-24 00:49:33,582 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 00:49:33,583 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 00:49:33,583 INFO L85 PathProgramCache]: Analyzing trace with hash 533967603, now seen corresponding path program 1 times [2024-10-24 00:49:33,583 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 00:49:33,583 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [59878237] [2024-10-24 00:49:33,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 00:49:33,584 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 00:49:33,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:49:33,666 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 00:49:33,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:49:33,675 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 00:49:33,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:49:33,678 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 00:49:33,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:49:33,680 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-24 00:49:33,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:49:33,682 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-24 00:49:33,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:49:33,684 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-24 00:49:33,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:49:33,693 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 00:49:33,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:49:33,701 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-10-24 00:49:33,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:49:33,703 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-10-24 00:49:33,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:49:33,704 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-10-24 00:49:33,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:49:33,705 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-10-24 00:49:33,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:49:33,709 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-10-24 00:49:33,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:49:33,711 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-10-24 00:49:33,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:49:33,713 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-10-24 00:49:33,713 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 00:49:33,713 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [59878237] [2024-10-24 00:49:33,714 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [59878237] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 00:49:33,714 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 00:49:33,714 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 00:49:33,714 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [406899509] [2024-10-24 00:49:33,714 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 00:49:33,714 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 00:49:33,714 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 00:49:33,715 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 00:49:33,715 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 00:49:33,716 INFO L87 Difference]: Start difference. First operand 940 states and 1593 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, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-10-24 00:49:34,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 00:49:34,762 INFO L93 Difference]: Finished difference Result 2321 states and 3996 transitions. [2024-10-24 00:49:34,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-24 00:49:34,763 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, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 116 [2024-10-24 00:49:34,763 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 00:49:34,772 INFO L225 Difference]: With dead ends: 2321 [2024-10-24 00:49:34,772 INFO L226 Difference]: Without dead ends: 1499 [2024-10-24 00:49:34,776 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-10-24 00:49:34,777 INFO L432 NwaCegarLoop]: 166 mSDtfsCounter, 966 mSDsluCounter, 547 mSDsCounter, 0 mSdLazyCounter, 1080 mSolverCounterSat, 331 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 981 SdHoareTripleChecker+Valid, 713 SdHoareTripleChecker+Invalid, 1411 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 331 IncrementalHoareTripleChecker+Valid, 1080 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-10-24 00:49:34,777 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [981 Valid, 713 Invalid, 1411 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [331 Valid, 1080 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-10-24 00:49:34,779 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1499 states. [2024-10-24 00:49:34,849 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1499 to 1415. [2024-10-24 00:49:34,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1415 states, 1112 states have (on average 1.6348920863309353) internal successors, (1818), 1118 states have internal predecessors, (1818), 280 states have call successors, (280), 19 states have call predecessors, (280), 22 states have return successors, (309), 277 states have call predecessors, (309), 277 states have call successors, (309) [2024-10-24 00:49:34,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1415 states to 1415 states and 2407 transitions. [2024-10-24 00:49:34,859 INFO L78 Accepts]: Start accepts. Automaton has 1415 states and 2407 transitions. Word has length 116 [2024-10-24 00:49:34,859 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 00:49:34,860 INFO L471 AbstractCegarLoop]: Abstraction has 1415 states and 2407 transitions. [2024-10-24 00:49:34,860 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, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-10-24 00:49:34,860 INFO L276 IsEmpty]: Start isEmpty. Operand 1415 states and 2407 transitions. [2024-10-24 00:49:34,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2024-10-24 00:49:34,868 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 00:49:34,868 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 00:49:34,868 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-10-24 00:49:34,868 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 00:49:34,869 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 00:49:34,869 INFO L85 PathProgramCache]: Analyzing trace with hash -1111650778, now seen corresponding path program 1 times [2024-10-24 00:49:34,869 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 00:49:34,869 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [914623931] [2024-10-24 00:49:34,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 00:49:34,870 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 00:49:34,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:49:34,932 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 00:49:34,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:49:34,945 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 00:49:34,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:49:34,949 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 00:49:34,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:49:34,952 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-24 00:49:34,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:49:34,954 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-24 00:49:34,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:49:34,956 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-24 00:49:34,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:49:34,967 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-10-24 00:49:34,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:49:34,976 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 00:49:34,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:49:34,978 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-10-24 00:49:34,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:49:34,980 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-10-24 00:49:34,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:49:34,984 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-10-24 00:49:34,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:49:34,986 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-10-24 00:49:34,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:49:34,988 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-10-24 00:49:34,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:49:34,990 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-10-24 00:49:34,990 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 00:49:34,990 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [914623931] [2024-10-24 00:49:34,990 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [914623931] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 00:49:34,991 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 00:49:34,991 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 00:49:34,991 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2008756487] [2024-10-24 00:49:34,991 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 00:49:34,992 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 00:49:34,993 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 00:49:34,993 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 00:49:34,994 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 00:49:34,994 INFO L87 Difference]: Start difference. First operand 1415 states and 2407 transitions. Second operand has 7 states, 7 states have (on average 10.714285714285714) internal successors, (75), 3 states have internal predecessors, (75), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-10-24 00:49:36,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 00:49:36,061 INFO L93 Difference]: Finished difference Result 3383 states and 5874 transitions. [2024-10-24 00:49:36,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-24 00:49:36,062 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.714285714285714) internal successors, (75), 3 states have internal predecessors, (75), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 117 [2024-10-24 00:49:36,062 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 00:49:36,075 INFO L225 Difference]: With dead ends: 3383 [2024-10-24 00:49:36,075 INFO L226 Difference]: Without dead ends: 2214 [2024-10-24 00:49:36,082 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-10-24 00:49:36,083 INFO L432 NwaCegarLoop]: 160 mSDtfsCounter, 964 mSDsluCounter, 542 mSDsCounter, 0 mSdLazyCounter, 1062 mSolverCounterSat, 323 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 979 SdHoareTripleChecker+Valid, 702 SdHoareTripleChecker+Invalid, 1385 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 323 IncrementalHoareTripleChecker+Valid, 1062 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-10-24 00:49:36,083 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [979 Valid, 702 Invalid, 1385 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [323 Valid, 1062 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-10-24 00:49:36,086 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2214 states. [2024-10-24 00:49:36,186 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2214 to 2130. [2024-10-24 00:49:36,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2130 states, 1704 states have (on average 1.6384976525821595) internal successors, (2792), 1710 states have internal predecessors, (2792), 403 states have call successors, (403), 19 states have call predecessors, (403), 22 states have return successors, (448), 400 states have call predecessors, (448), 400 states have call successors, (448) [2024-10-24 00:49:36,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2130 states to 2130 states and 3643 transitions. [2024-10-24 00:49:36,239 INFO L78 Accepts]: Start accepts. Automaton has 2130 states and 3643 transitions. Word has length 117 [2024-10-24 00:49:36,239 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 00:49:36,239 INFO L471 AbstractCegarLoop]: Abstraction has 2130 states and 3643 transitions. [2024-10-24 00:49:36,242 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.714285714285714) internal successors, (75), 3 states have internal predecessors, (75), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-10-24 00:49:36,243 INFO L276 IsEmpty]: Start isEmpty. Operand 2130 states and 3643 transitions. [2024-10-24 00:49:36,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2024-10-24 00:49:36,253 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 00:49:36,253 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 00:49:36,253 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-10-24 00:49:36,253 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 00:49:36,254 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 00:49:36,254 INFO L85 PathProgramCache]: Analyzing trace with hash 1282259828, now seen corresponding path program 1 times [2024-10-24 00:49:36,254 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 00:49:36,254 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1629134138] [2024-10-24 00:49:36,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 00:49:36,254 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 00:49:36,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:49:36,313 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 00:49:36,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:49:36,322 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 00:49:36,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:49:36,325 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 00:49:36,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:49:36,327 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-24 00:49:36,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:49:36,330 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-24 00:49:36,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:49:36,333 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-24 00:49:36,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:49:36,341 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-10-24 00:49:36,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:49:36,352 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-10-24 00:49:36,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:49:36,355 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-10-24 00:49:36,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:49:36,356 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-10-24 00:49:36,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:49:36,358 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-24 00:49:36,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:49:36,363 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-10-24 00:49:36,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:49:36,365 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-10-24 00:49:36,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:49:36,368 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-10-24 00:49:36,368 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 00:49:36,368 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1629134138] [2024-10-24 00:49:36,368 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1629134138] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 00:49:36,369 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 00:49:36,369 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 00:49:36,369 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [129188061] [2024-10-24 00:49:36,369 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 00:49:36,369 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 00:49:36,369 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 00:49:36,370 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 00:49:36,370 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 00:49:36,370 INFO L87 Difference]: Start difference. First operand 2130 states and 3643 transitions. Second operand has 7 states, 7 states have (on average 10.857142857142858) internal successors, (76), 3 states have internal predecessors, (76), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-10-24 00:49:37,671 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 00:49:37,671 INFO L93 Difference]: Finished difference Result 5025 states and 8787 transitions. [2024-10-24 00:49:37,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-24 00:49:37,671 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.857142857142858) internal successors, (76), 3 states have internal predecessors, (76), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 118 [2024-10-24 00:49:37,672 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 00:49:37,693 INFO L225 Difference]: With dead ends: 5025 [2024-10-24 00:49:37,693 INFO L226 Difference]: Without dead ends: 3350 [2024-10-24 00:49:37,701 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-10-24 00:49:37,702 INFO L432 NwaCegarLoop]: 162 mSDtfsCounter, 962 mSDsluCounter, 542 mSDsCounter, 0 mSdLazyCounter, 1065 mSolverCounterSat, 323 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 977 SdHoareTripleChecker+Valid, 704 SdHoareTripleChecker+Invalid, 1388 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 323 IncrementalHoareTripleChecker+Valid, 1065 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-10-24 00:49:37,703 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [977 Valid, 704 Invalid, 1388 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [323 Valid, 1065 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-10-24 00:49:37,706 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3350 states. [2024-10-24 00:49:37,894 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3350 to 3266. [2024-10-24 00:49:37,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3266 states, 2661 states have (on average 1.6407365652010522) internal successors, (4366), 2667 states have internal predecessors, (4366), 582 states have call successors, (582), 19 states have call predecessors, (582), 22 states have return successors, (653), 579 states have call predecessors, (653), 579 states have call successors, (653) [2024-10-24 00:49:37,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3266 states to 3266 states and 5601 transitions. [2024-10-24 00:49:37,917 INFO L78 Accepts]: Start accepts. Automaton has 3266 states and 5601 transitions. Word has length 118 [2024-10-24 00:49:37,918 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 00:49:37,918 INFO L471 AbstractCegarLoop]: Abstraction has 3266 states and 5601 transitions. [2024-10-24 00:49:37,918 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.857142857142858) internal successors, (76), 3 states have internal predecessors, (76), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-10-24 00:49:37,918 INFO L276 IsEmpty]: Start isEmpty. Operand 3266 states and 5601 transitions. [2024-10-24 00:49:37,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2024-10-24 00:49:37,932 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 00:49:37,933 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 00:49:37,933 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-10-24 00:49:37,933 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 00:49:37,933 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 00:49:37,934 INFO L85 PathProgramCache]: Analyzing trace with hash 125167106, now seen corresponding path program 1 times [2024-10-24 00:49:37,934 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 00:49:37,934 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1787890467] [2024-10-24 00:49:37,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 00:49:37,934 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 00:49:37,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:49:38,005 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 00:49:38,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:49:38,016 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 00:49:38,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:49:38,020 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 00:49:38,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:49:38,022 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-24 00:49:38,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:49:38,024 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-24 00:49:38,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:49:38,026 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-24 00:49:38,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:49:38,036 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-10-24 00:49:38,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:49:38,046 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-10-24 00:49:38,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:49:38,048 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-24 00:49:38,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:49:38,050 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-10-24 00:49:38,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:49:38,051 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-10-24 00:49:38,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:49:38,053 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-10-24 00:49:38,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:49:38,057 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-10-24 00:49:38,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:49:38,059 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-10-24 00:49:38,059 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 00:49:38,059 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1787890467] [2024-10-24 00:49:38,059 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1787890467] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 00:49:38,059 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 00:49:38,059 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 00:49:38,060 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1382777756] [2024-10-24 00:49:38,060 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 00:49:38,060 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 00:49:38,060 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 00:49:38,060 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 00:49:38,061 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 00:49:38,061 INFO L87 Difference]: Start difference. First operand 3266 states and 5601 transitions. Second operand has 7 states, 7 states have (on average 11.0) internal successors, (77), 3 states have internal predecessors, (77), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-10-24 00:49:39,153 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 00:49:39,153 INFO L93 Difference]: Finished difference Result 7980 states and 13985 transitions. [2024-10-24 00:49:39,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-24 00:49:39,153 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.0) internal successors, (77), 3 states have internal predecessors, (77), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 119 [2024-10-24 00:49:39,154 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 00:49:39,180 INFO L225 Difference]: With dead ends: 7980 [2024-10-24 00:49:39,180 INFO L226 Difference]: Without dead ends: 5408 [2024-10-24 00:49:39,192 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-10-24 00:49:39,193 INFO L432 NwaCegarLoop]: 181 mSDtfsCounter, 960 mSDsluCounter, 583 mSDsCounter, 0 mSdLazyCounter, 1103 mSolverCounterSat, 323 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 975 SdHoareTripleChecker+Valid, 764 SdHoareTripleChecker+Invalid, 1426 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 323 IncrementalHoareTripleChecker+Valid, 1103 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-10-24 00:49:39,193 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [975 Valid, 764 Invalid, 1426 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [323 Valid, 1103 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-10-24 00:49:39,198 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5408 states. [2024-10-24 00:49:39,475 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5408 to 5324. [2024-10-24 00:49:39,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5324 states, 4343 states have (on average 1.6322818328344462) internal successors, (7089), 4349 states have internal predecessors, (7089), 958 states have call successors, (958), 19 states have call predecessors, (958), 22 states have return successors, (1073), 955 states have call predecessors, (1073), 955 states have call successors, (1073) [2024-10-24 00:49:39,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5324 states to 5324 states and 9120 transitions. [2024-10-24 00:49:39,514 INFO L78 Accepts]: Start accepts. Automaton has 5324 states and 9120 transitions. Word has length 119 [2024-10-24 00:49:39,514 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 00:49:39,515 INFO L471 AbstractCegarLoop]: Abstraction has 5324 states and 9120 transitions. [2024-10-24 00:49:39,515 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.0) internal successors, (77), 3 states have internal predecessors, (77), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-10-24 00:49:39,515 INFO L276 IsEmpty]: Start isEmpty. Operand 5324 states and 9120 transitions. [2024-10-24 00:49:39,532 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2024-10-24 00:49:39,533 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 00:49:39,533 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 00:49:39,533 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-10-24 00:49:39,533 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 00:49:39,534 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 00:49:39,534 INFO L85 PathProgramCache]: Analyzing trace with hash -2015089768, now seen corresponding path program 1 times [2024-10-24 00:49:39,534 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 00:49:39,534 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [317863199] [2024-10-24 00:49:39,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 00:49:39,535 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 00:49:39,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:49:39,597 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 00:49:39,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:49:39,606 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 00:49:39,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:49:39,609 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 00:49:39,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:49:39,612 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-24 00:49:39,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:49:39,615 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-24 00:49:39,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:49:39,618 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-24 00:49:39,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:49:39,628 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-10-24 00:49:39,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:49:39,638 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-10-24 00:49:39,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:49:39,640 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-10-24 00:49:39,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:49:39,641 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-10-24 00:49:39,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:49:39,644 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2024-10-24 00:49:39,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:49:39,646 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-24 00:49:39,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:49:39,647 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-24 00:49:39,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:49:39,649 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-10-24 00:49:39,649 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 00:49:39,649 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [317863199] [2024-10-24 00:49:39,649 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [317863199] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 00:49:39,649 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 00:49:39,649 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 00:49:39,649 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [936586719] [2024-10-24 00:49:39,649 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 00:49:39,650 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 00:49:39,650 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 00:49:39,650 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 00:49:39,650 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 00:49:39,650 INFO L87 Difference]: Start difference. First operand 5324 states and 9120 transitions. Second operand has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 3 states have internal predecessors, (78), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-10-24 00:49:40,833 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 00:49:40,834 INFO L93 Difference]: Finished difference Result 13185 states and 23069 transitions. [2024-10-24 00:49:40,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-24 00:49:40,835 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 3 states have internal predecessors, (78), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 120 [2024-10-24 00:49:40,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 00:49:40,881 INFO L225 Difference]: With dead ends: 13185 [2024-10-24 00:49:40,885 INFO L226 Difference]: Without dead ends: 8941 [2024-10-24 00:49:40,901 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-10-24 00:49:40,902 INFO L432 NwaCegarLoop]: 161 mSDtfsCounter, 958 mSDsluCounter, 543 mSDsCounter, 0 mSdLazyCounter, 1062 mSolverCounterSat, 331 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 973 SdHoareTripleChecker+Valid, 704 SdHoareTripleChecker+Invalid, 1393 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 331 IncrementalHoareTripleChecker+Valid, 1062 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-10-24 00:49:40,902 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [973 Valid, 704 Invalid, 1393 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [331 Valid, 1062 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-10-24 00:49:40,910 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8941 states. [2024-10-24 00:49:41,323 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8941 to 8857. [2024-10-24 00:49:41,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8857 states, 7270 states have (on average 1.6294360385144429) internal successors, (11846), 7276 states have internal predecessors, (11846), 1564 states have call successors, (1564), 19 states have call predecessors, (1564), 22 states have return successors, (1757), 1561 states have call predecessors, (1757), 1561 states have call successors, (1757) [2024-10-24 00:49:41,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8857 states to 8857 states and 15167 transitions. [2024-10-24 00:49:41,381 INFO L78 Accepts]: Start accepts. Automaton has 8857 states and 15167 transitions. Word has length 120 [2024-10-24 00:49:41,382 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 00:49:41,382 INFO L471 AbstractCegarLoop]: Abstraction has 8857 states and 15167 transitions. [2024-10-24 00:49:41,382 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 3 states have internal predecessors, (78), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-10-24 00:49:41,382 INFO L276 IsEmpty]: Start isEmpty. Operand 8857 states and 15167 transitions. [2024-10-24 00:49:41,402 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2024-10-24 00:49:41,403 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 00:49:41,403 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 00:49:41,403 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-10-24 00:49:41,403 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 00:49:41,404 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 00:49:41,404 INFO L85 PathProgramCache]: Analyzing trace with hash -193460572, now seen corresponding path program 1 times [2024-10-24 00:49:41,404 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 00:49:41,404 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [831151738] [2024-10-24 00:49:41,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 00:49:41,405 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 00:49:41,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:49:41,460 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 00:49:41,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:49:41,471 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 00:49:41,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:49:41,473 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 00:49:41,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:49:41,475 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-24 00:49:41,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:49:41,477 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-24 00:49:41,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:49:41,480 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-24 00:49:41,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:49:41,489 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-10-24 00:49:41,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:49:41,499 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-10-24 00:49:41,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:49:41,502 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-24 00:49:41,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:49:41,504 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-24 00:49:41,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:49:41,507 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-24 00:49:41,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:49:41,509 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-10-24 00:49:41,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:49:41,511 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-10-24 00:49:41,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:49:41,513 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-10-24 00:49:41,513 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 00:49:41,513 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [831151738] [2024-10-24 00:49:41,514 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [831151738] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 00:49:41,514 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 00:49:41,514 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 00:49:41,514 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1885823893] [2024-10-24 00:49:41,514 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 00:49:41,514 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 00:49:41,515 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 00:49:41,516 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 00:49:41,516 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 00:49:41,516 INFO L87 Difference]: Start difference. First operand 8857 states and 15167 transitions. Second operand has 7 states, 7 states have (on average 11.285714285714286) internal successors, (79), 3 states have internal predecessors, (79), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-10-24 00:49:42,702 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 00:49:42,702 INFO L93 Difference]: Finished difference Result 22957 states and 40098 transitions. [2024-10-24 00:49:42,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-24 00:49:42,703 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.285714285714286) internal successors, (79), 3 states have internal predecessors, (79), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 121 [2024-10-24 00:49:42,703 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 00:49:42,783 INFO L225 Difference]: With dead ends: 22957 [2024-10-24 00:49:42,784 INFO L226 Difference]: Without dead ends: 15613 [2024-10-24 00:49:42,812 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-10-24 00:49:42,813 INFO L432 NwaCegarLoop]: 175 mSDtfsCounter, 956 mSDsluCounter, 566 mSDsCounter, 0 mSdLazyCounter, 1109 mSolverCounterSat, 327 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 971 SdHoareTripleChecker+Valid, 741 SdHoareTripleChecker+Invalid, 1436 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 327 IncrementalHoareTripleChecker+Valid, 1109 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-10-24 00:49:42,813 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [971 Valid, 741 Invalid, 1436 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [327 Valid, 1109 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-10-24 00:49:42,828 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15613 states. [2024-10-24 00:49:43,449 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15613 to 15529. [2024-10-24 00:49:43,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15529 states, 12739 states have (on average 1.6198288719679723) internal successors, (20635), 12745 states have internal predecessors, (20635), 2767 states have call successors, (2767), 19 states have call predecessors, (2767), 22 states have return successors, (3104), 2764 states have call predecessors, (3104), 2764 states have call successors, (3104) [2024-10-24 00:49:43,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15529 states to 15529 states and 26506 transitions. [2024-10-24 00:49:43,530 INFO L78 Accepts]: Start accepts. Automaton has 15529 states and 26506 transitions. Word has length 121 [2024-10-24 00:49:43,530 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 00:49:43,531 INFO L471 AbstractCegarLoop]: Abstraction has 15529 states and 26506 transitions. [2024-10-24 00:49:43,531 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.285714285714286) internal successors, (79), 3 states have internal predecessors, (79), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-10-24 00:49:43,531 INFO L276 IsEmpty]: Start isEmpty. Operand 15529 states and 26506 transitions. [2024-10-24 00:49:43,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2024-10-24 00:49:43,553 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 00:49:43,553 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 00:49:43,553 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-10-24 00:49:43,554 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 00:49:43,554 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 00:49:43,554 INFO L85 PathProgramCache]: Analyzing trace with hash 1876846521, now seen corresponding path program 1 times [2024-10-24 00:49:43,554 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 00:49:43,554 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1763923694] [2024-10-24 00:49:43,555 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 00:49:43,555 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 00:49:43,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:49:43,616 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 00:49:43,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:49:43,626 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 00:49:43,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:49:43,629 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 00:49:43,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:49:43,631 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-24 00:49:43,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:49:43,635 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-24 00:49:43,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:49:43,637 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-24 00:49:43,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:49:43,646 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 00:49:43,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:49:43,655 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-24 00:49:43,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:49:43,657 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-10-24 00:49:43,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:49:43,661 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-10-24 00:49:43,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:49:43,663 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-10-24 00:49:43,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:49:43,664 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-10-24 00:49:43,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:49:43,666 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-10-24 00:49:43,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:49:43,668 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-10-24 00:49:43,668 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 00:49:43,668 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1763923694] [2024-10-24 00:49:43,669 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1763923694] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 00:49:43,669 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 00:49:43,669 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 00:49:43,669 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1937035678] [2024-10-24 00:49:43,669 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 00:49:43,670 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 00:49:43,670 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 00:49:43,670 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 00:49:43,670 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 00:49:43,670 INFO L87 Difference]: Start difference. First operand 15529 states and 26506 transitions. Second operand has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 3 states have internal predecessors, (80), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-10-24 00:49:45,382 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 00:49:45,382 INFO L93 Difference]: Finished difference Result 41124 states and 71696 transitions. [2024-10-24 00:49:45,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-24 00:49:45,383 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 3 states have internal predecessors, (80), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 122 [2024-10-24 00:49:45,383 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 00:49:45,509 INFO L225 Difference]: With dead ends: 41124 [2024-10-24 00:49:45,510 INFO L226 Difference]: Without dead ends: 27728 [2024-10-24 00:49:45,548 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-10-24 00:49:45,549 INFO L432 NwaCegarLoop]: 160 mSDtfsCounter, 955 mSDsluCounter, 543 mSDsCounter, 0 mSdLazyCounter, 1051 mSolverCounterSat, 333 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 970 SdHoareTripleChecker+Valid, 703 SdHoareTripleChecker+Invalid, 1384 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 333 IncrementalHoareTripleChecker+Valid, 1051 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-10-24 00:49:45,549 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [970 Valid, 703 Invalid, 1384 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [333 Valid, 1051 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-10-24 00:49:45,573 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27728 states. [2024-10-24 00:49:46,509 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27728 to 27644. [2024-10-24 00:49:46,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27644 states, 22815 states have (on average 1.6156914310760464) internal successors, (36862), 22821 states have internal predecessors, (36862), 4806 states have call successors, (4806), 19 states have call predecessors, (4806), 22 states have return successors, (5417), 4803 states have call predecessors, (5417), 4803 states have call successors, (5417) [2024-10-24 00:49:46,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27644 states to 27644 states and 47085 transitions. [2024-10-24 00:49:46,647 INFO L78 Accepts]: Start accepts. Automaton has 27644 states and 47085 transitions. Word has length 122 [2024-10-24 00:49:46,648 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 00:49:46,648 INFO L471 AbstractCegarLoop]: Abstraction has 27644 states and 47085 transitions. [2024-10-24 00:49:46,648 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 3 states have internal predecessors, (80), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-10-24 00:49:46,648 INFO L276 IsEmpty]: Start isEmpty. Operand 27644 states and 47085 transitions. [2024-10-24 00:49:46,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2024-10-24 00:49:46,680 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 00:49:46,680 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 00:49:46,680 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-10-24 00:49:46,680 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 00:49:46,681 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 00:49:46,681 INFO L85 PathProgramCache]: Analyzing trace with hash 174303142, now seen corresponding path program 1 times [2024-10-24 00:49:46,681 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 00:49:46,681 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [772442303] [2024-10-24 00:49:46,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 00:49:46,682 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 00:49:46,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:49:46,741 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 00:49:46,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:49:46,749 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 00:49:46,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:49:46,752 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 00:49:46,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:49:46,754 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-24 00:49:46,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:49:46,756 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-24 00:49:46,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:49:46,761 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-24 00:49:46,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:49:46,770 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-10-24 00:49:46,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:49:46,780 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-24 00:49:46,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:49:46,783 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-10-24 00:49:46,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:49:46,785 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-10-24 00:49:46,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:49:46,787 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-10-24 00:49:46,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:49:46,789 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-10-24 00:49:46,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:49:46,790 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-10-24 00:49:46,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:49:46,792 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-10-24 00:49:46,792 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 00:49:46,792 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [772442303] [2024-10-24 00:49:46,792 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [772442303] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 00:49:46,792 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 00:49:46,793 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 00:49:46,793 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1396856497] [2024-10-24 00:49:46,793 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 00:49:46,794 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 00:49:46,794 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 00:49:46,795 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 00:49:46,795 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 00:49:46,796 INFO L87 Difference]: Start difference. First operand 27644 states and 47085 transitions. Second operand has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 3 states have internal predecessors, (81), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-10-24 00:49:49,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 00:49:49,292 INFO L93 Difference]: Finished difference Result 75316 states and 130490 transitions. [2024-10-24 00:49:49,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-24 00:49:49,293 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 3 states have internal predecessors, (81), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 123 [2024-10-24 00:49:49,293 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 00:49:49,698 INFO L225 Difference]: With dead ends: 75316 [2024-10-24 00:49:49,698 INFO L226 Difference]: Without dead ends: 50552 [2024-10-24 00:49:49,763 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-10-24 00:49:49,764 INFO L432 NwaCegarLoop]: 163 mSDtfsCounter, 953 mSDsluCounter, 547 mSDsCounter, 0 mSdLazyCounter, 1064 mSolverCounterSat, 333 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 968 SdHoareTripleChecker+Valid, 710 SdHoareTripleChecker+Invalid, 1397 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 333 IncrementalHoareTripleChecker+Valid, 1064 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-10-24 00:49:49,764 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [968 Valid, 710 Invalid, 1397 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [333 Valid, 1064 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-10-24 00:49:49,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50552 states. [2024-10-24 00:49:51,520 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50552 to 50468. [2024-10-24 00:49:51,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50468 states, 41924 states have (on average 1.6102948191966415) internal successors, (67510), 41930 states have internal predecessors, (67510), 8521 states have call successors, (8521), 19 states have call predecessors, (8521), 22 states have return successors, (9664), 8518 states have call predecessors, (9664), 8518 states have call successors, (9664) [2024-10-24 00:49:52,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50468 states to 50468 states and 85695 transitions. [2024-10-24 00:49:52,059 INFO L78 Accepts]: Start accepts. Automaton has 50468 states and 85695 transitions. Word has length 123 [2024-10-24 00:49:52,059 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 00:49:52,059 INFO L471 AbstractCegarLoop]: Abstraction has 50468 states and 85695 transitions. [2024-10-24 00:49:52,060 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 3 states have internal predecessors, (81), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-10-24 00:49:52,060 INFO L276 IsEmpty]: Start isEmpty. Operand 50468 states and 85695 transitions. [2024-10-24 00:49:52,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2024-10-24 00:49:52,093 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 00:49:52,093 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 00:49:52,093 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-10-24 00:49:52,093 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 00:49:52,094 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 00:49:52,094 INFO L85 PathProgramCache]: Analyzing trace with hash 18338745, now seen corresponding path program 1 times [2024-10-24 00:49:52,094 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 00:49:52,094 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [980008798] [2024-10-24 00:49:52,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 00:49:52,094 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 00:49:52,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:49:52,156 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 00:49:52,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:49:52,165 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 00:49:52,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:49:52,168 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 00:49:52,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:49:52,170 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-24 00:49:52,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:49:52,172 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-24 00:49:52,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:49:52,174 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-24 00:49:52,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:49:52,182 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-10-24 00:49:52,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:49:52,191 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-10-24 00:49:52,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:49:52,193 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-10-24 00:49:52,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:49:52,196 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-24 00:49:52,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:49:52,198 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-10-24 00:49:52,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:49:52,200 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-10-24 00:49:52,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:49:52,201 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-10-24 00:49:52,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:49:52,202 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-10-24 00:49:52,203 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 00:49:52,203 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [980008798] [2024-10-24 00:49:52,203 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [980008798] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 00:49:52,203 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 00:49:52,203 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 00:49:52,204 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [71907239] [2024-10-24 00:49:52,204 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 00:49:52,204 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 00:49:52,204 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 00:49:52,205 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 00:49:52,205 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 00:49:52,205 INFO L87 Difference]: Start difference. First operand 50468 states and 85695 transitions. Second operand has 7 states, 7 states have (on average 11.714285714285714) internal successors, (82), 3 states have internal predecessors, (82), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-10-24 00:49:55,473 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 00:49:55,473 INFO L93 Difference]: Finished difference Result 94063 states and 163396 transitions. [2024-10-24 00:49:55,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-24 00:49:55,474 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.714285714285714) internal successors, (82), 3 states have internal predecessors, (82), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 124 [2024-10-24 00:49:55,474 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 00:49:55,949 INFO L225 Difference]: With dead ends: 94063 [2024-10-24 00:49:55,950 INFO L226 Difference]: Without dead ends: 93932 [2024-10-24 00:49:56,003 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-10-24 00:49:56,005 INFO L432 NwaCegarLoop]: 165 mSDtfsCounter, 948 mSDsluCounter, 551 mSDsCounter, 0 mSdLazyCounter, 1074 mSolverCounterSat, 324 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 962 SdHoareTripleChecker+Valid, 716 SdHoareTripleChecker+Invalid, 1398 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 324 IncrementalHoareTripleChecker+Valid, 1074 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-10-24 00:49:56,005 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [962 Valid, 716 Invalid, 1398 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [324 Valid, 1074 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-10-24 00:49:56,089 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93932 states. [2024-10-24 00:49:59,126 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93932 to 93848. [2024-10-24 00:49:59,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93848 states, 78505 states have (on average 1.6034392713839882) internal successors, (125878), 78511 states have internal predecessors, (125878), 15320 states have call successors, (15320), 19 states have call predecessors, (15320), 22 states have return successors, (17509), 15317 states have call predecessors, (17509), 15317 states have call successors, (17509) [2024-10-24 00:50:00,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93848 states to 93848 states and 158707 transitions. [2024-10-24 00:50:00,086 INFO L78 Accepts]: Start accepts. Automaton has 93848 states and 158707 transitions. Word has length 124 [2024-10-24 00:50:00,086 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 00:50:00,086 INFO L471 AbstractCegarLoop]: Abstraction has 93848 states and 158707 transitions. [2024-10-24 00:50:00,087 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.714285714285714) internal successors, (82), 3 states have internal predecessors, (82), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-10-24 00:50:00,087 INFO L276 IsEmpty]: Start isEmpty. Operand 93848 states and 158707 transitions. [2024-10-24 00:50:00,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2024-10-24 00:50:00,179 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 00:50:00,179 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 00:50:00,179 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-10-24 00:50:00,180 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 00:50:00,180 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 00:50:00,180 INFO L85 PathProgramCache]: Analyzing trace with hash -247186683, now seen corresponding path program 1 times [2024-10-24 00:50:00,180 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 00:50:00,180 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [45064552] [2024-10-24 00:50:00,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 00:50:00,181 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 00:50:00,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:50:00,341 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 00:50:00,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:50:00,354 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 00:50:00,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:50:00,357 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 00:50:00,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:50:00,360 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-24 00:50:00,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:50:00,364 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-24 00:50:00,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:50:00,368 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-24 00:50:00,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:50:00,379 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-10-24 00:50:00,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:50:00,391 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-10-24 00:50:00,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:50:00,394 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-10-24 00:50:00,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:50:00,396 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-10-24 00:50:00,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:50:00,412 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-10-24 00:50:00,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:50:00,414 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-10-24 00:50:00,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:50:00,416 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-10-24 00:50:00,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:50:00,418 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-10-24 00:50:00,418 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 00:50:00,418 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [45064552] [2024-10-24 00:50:00,418 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [45064552] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 00:50:00,419 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 00:50:00,419 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-10-24 00:50:00,419 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [877361848] [2024-10-24 00:50:00,419 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 00:50:00,419 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-24 00:50:00,419 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 00:50:00,420 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-24 00:50:00,420 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-10-24 00:50:00,420 INFO L87 Difference]: Start difference. First operand 93848 states and 158707 transitions. Second operand has 10 states, 10 states have (on average 8.3) internal successors, (83), 5 states have internal predecessors, (83), 3 states have call successors, (16), 7 states have call predecessors, (16), 2 states have return successors, (13), 4 states have call predecessors, (13), 3 states have call successors, (13) [2024-10-24 00:50:05,361 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 00:50:05,361 INFO L93 Difference]: Finished difference Result 94445 states and 162876 transitions. [2024-10-24 00:50:05,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2024-10-24 00:50:05,362 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 8.3) internal successors, (83), 5 states have internal predecessors, (83), 3 states have call successors, (16), 7 states have call predecessors, (16), 2 states have return successors, (13), 4 states have call predecessors, (13), 3 states have call successors, (13) Word has length 125 [2024-10-24 00:50:05,362 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 00:50:06,002 INFO L225 Difference]: With dead ends: 94445 [2024-10-24 00:50:06,002 INFO L226 Difference]: Without dead ends: 94319 [2024-10-24 00:50:06,039 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 286 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=328, Invalid=862, Unknown=0, NotChecked=0, Total=1190 [2024-10-24 00:50:06,041 INFO L432 NwaCegarLoop]: 162 mSDtfsCounter, 1579 mSDsluCounter, 790 mSDsCounter, 0 mSdLazyCounter, 3340 mSolverCounterSat, 439 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1593 SdHoareTripleChecker+Valid, 952 SdHoareTripleChecker+Invalid, 3779 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 439 IncrementalHoareTripleChecker+Valid, 3340 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2024-10-24 00:50:06,042 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1593 Valid, 952 Invalid, 3779 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [439 Valid, 3340 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2024-10-24 00:50:06,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94319 states. [2024-10-24 00:50:09,118 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94319 to 94104. [2024-10-24 00:50:09,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94104 states, 78705 states have (on average 1.603176418270758) internal successors, (126178), 78714 states have internal predecessors, (126178), 15350 states have call successors, (15350), 41 states have call predecessors, (15350), 48 states have return successors, (17544), 15348 states have call predecessors, (17544), 15345 states have call successors, (17544) [2024-10-24 00:50:09,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94104 states to 94104 states and 159072 transitions. [2024-10-24 00:50:09,476 INFO L78 Accepts]: Start accepts. Automaton has 94104 states and 159072 transitions. Word has length 125 [2024-10-24 00:50:09,476 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 00:50:09,476 INFO L471 AbstractCegarLoop]: Abstraction has 94104 states and 159072 transitions. [2024-10-24 00:50:09,476 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 8.3) internal successors, (83), 5 states have internal predecessors, (83), 3 states have call successors, (16), 7 states have call predecessors, (16), 2 states have return successors, (13), 4 states have call predecessors, (13), 3 states have call successors, (13) [2024-10-24 00:50:09,476 INFO L276 IsEmpty]: Start isEmpty. Operand 94104 states and 159072 transitions. [2024-10-24 00:50:09,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2024-10-24 00:50:09,509 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 00:50:09,509 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 00:50:09,509 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-10-24 00:50:09,509 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 00:50:09,509 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 00:50:09,509 INFO L85 PathProgramCache]: Analyzing trace with hash 1083710545, now seen corresponding path program 1 times [2024-10-24 00:50:09,510 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 00:50:09,510 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [888480028] [2024-10-24 00:50:09,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 00:50:09,510 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 00:50:09,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:50:10,188 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 00:50:10,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:50:10,204 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 00:50:10,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:50:10,207 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 00:50:10,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:50:10,210 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-24 00:50:10,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:50:10,213 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-24 00:50:10,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:50:10,216 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-24 00:50:10,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:50:10,231 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-10-24 00:50:10,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:50:10,248 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-10-24 00:50:10,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:50:10,252 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-10-24 00:50:10,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:50:10,255 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-10-24 00:50:10,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:50:10,284 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-10-24 00:50:10,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:50:10,287 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-24 00:50:10,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:50:10,288 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-10-24 00:50:10,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:50:10,291 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-10-24 00:50:10,291 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 00:50:10,291 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [888480028] [2024-10-24 00:50:10,291 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [888480028] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 00:50:10,291 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 00:50:10,291 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-10-24 00:50:10,292 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [242900648] [2024-10-24 00:50:10,292 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 00:50:10,293 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-10-24 00:50:10,293 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 00:50:10,293 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-10-24 00:50:10,293 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=157, Unknown=0, NotChecked=0, Total=182 [2024-10-24 00:50:10,294 INFO L87 Difference]: Start difference. First operand 94104 states and 159072 transitions. Second operand has 14 states, 12 states have (on average 7.0) internal successors, (84), 9 states have internal predecessors, (84), 6 states have call successors, (16), 7 states have call predecessors, (16), 2 states have return successors, (13), 4 states have call predecessors, (13), 5 states have call successors, (13) [2024-10-24 00:50:14,872 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 00:50:14,872 INFO L93 Difference]: Finished difference Result 94798 states and 163392 transitions. [2024-10-24 00:50:14,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2024-10-24 00:50:14,873 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 12 states have (on average 7.0) internal successors, (84), 9 states have internal predecessors, (84), 6 states have call successors, (16), 7 states have call predecessors, (16), 2 states have return successors, (13), 4 states have call predecessors, (13), 5 states have call successors, (13) Word has length 126 [2024-10-24 00:50:14,873 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 00:50:15,553 INFO L225 Difference]: With dead ends: 94798 [2024-10-24 00:50:15,553 INFO L226 Difference]: Without dead ends: 94271 [2024-10-24 00:50:15,604 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 323 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=302, Invalid=1258, Unknown=0, NotChecked=0, Total=1560 [2024-10-24 00:50:15,606 INFO L432 NwaCegarLoop]: 161 mSDtfsCounter, 1325 mSDsluCounter, 1447 mSDsCounter, 0 mSdLazyCounter, 4462 mSolverCounterSat, 454 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1325 SdHoareTripleChecker+Valid, 1608 SdHoareTripleChecker+Invalid, 4916 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 454 IncrementalHoareTripleChecker+Valid, 4462 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2024-10-24 00:50:15,606 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1325 Valid, 1608 Invalid, 4916 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [454 Valid, 4462 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2024-10-24 00:50:15,668 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94271 states. [2024-10-24 00:50:18,794 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94271 to 94088. [2024-10-24 00:50:18,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94088 states, 78694 states have (on average 1.6031590718479172) internal successors, (126159), 78703 states have internal predecessors, (126159), 15348 states have call successors, (15348), 40 states have call predecessors, (15348), 45 states have return successors, (17541), 15344 states have call predecessors, (17541), 15344 states have call successors, (17541) [2024-10-24 00:50:19,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94088 states to 94088 states and 159048 transitions. [2024-10-24 00:50:19,192 INFO L78 Accepts]: Start accepts. Automaton has 94088 states and 159048 transitions. Word has length 126 [2024-10-24 00:50:19,193 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 00:50:19,193 INFO L471 AbstractCegarLoop]: Abstraction has 94088 states and 159048 transitions. [2024-10-24 00:50:19,193 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 12 states have (on average 7.0) internal successors, (84), 9 states have internal predecessors, (84), 6 states have call successors, (16), 7 states have call predecessors, (16), 2 states have return successors, (13), 4 states have call predecessors, (13), 5 states have call successors, (13) [2024-10-24 00:50:19,193 INFO L276 IsEmpty]: Start isEmpty. Operand 94088 states and 159048 transitions. [2024-10-24 00:50:19,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2024-10-24 00:50:19,247 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 00:50:19,247 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 00:50:19,247 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-10-24 00:50:19,248 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 00:50:19,248 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 00:50:19,248 INFO L85 PathProgramCache]: Analyzing trace with hash 208598139, now seen corresponding path program 1 times [2024-10-24 00:50:19,248 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 00:50:19,248 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2121280083] [2024-10-24 00:50:19,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 00:50:19,249 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 00:50:19,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:50:19,585 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 00:50:19,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:50:19,604 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 00:50:19,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:50:19,607 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 00:50:19,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:50:19,641 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-24 00:50:19,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:50:19,645 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-24 00:50:19,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:50:19,648 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-24 00:50:19,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:50:19,666 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-10-24 00:50:19,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:50:19,679 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-10-24 00:50:19,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:50:19,723 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-10-24 00:50:19,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:50:19,726 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-10-24 00:50:19,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:50:19,733 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-10-24 00:50:19,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:50:19,765 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-10-24 00:50:19,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:50:19,768 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-10-24 00:50:19,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:50:19,807 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 3 proven. 4 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2024-10-24 00:50:19,807 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 00:50:19,807 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2121280083] [2024-10-24 00:50:19,807 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2121280083] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 00:50:19,807 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [877604881] [2024-10-24 00:50:19,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 00:50:19,808 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 00:50:19,808 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 00:50:19,811 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-24 00:50:19,812 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-10-24 00:50:20,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:50:20,144 INFO L255 TraceCheckSpWp]: Trace formula consists of 1100 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-10-24 00:50:20,150 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 00:50:20,993 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-10-24 00:50:20,993 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 00:50:20,993 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [877604881] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 00:50:20,993 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-24 00:50:20,993 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [20] total 31 [2024-10-24 00:50:20,993 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1456734078] [2024-10-24 00:50:20,994 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 00:50:20,994 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-10-24 00:50:20,994 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 00:50:21,003 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-10-24 00:50:21,003 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=857, Unknown=0, NotChecked=0, Total=930 [2024-10-24 00:50:21,003 INFO L87 Difference]: Start difference. First operand 94088 states and 159048 transitions. Second operand has 13 states, 12 states have (on average 7.833333333333333) internal successors, (94), 11 states have internal predecessors, (94), 6 states have call successors, (16), 5 states have call predecessors, (16), 6 states have return successors, (13), 7 states have call predecessors, (13), 5 states have call successors, (13)