./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/product-lines/email_spec27_product13.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 803cd42f 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 ../sv-benchmarks/c/product-lines/email_spec27_product13.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 102266cd9873aec631509424dd889c2e48b781667738cfaa50930481a41b1570 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-803cd42-m [2024-11-22 01:53:34,156 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-22 01:53:34,235 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-22 01:53:34,241 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-22 01:53:34,242 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-22 01:53:34,268 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-22 01:53:34,268 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-22 01:53:34,269 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-22 01:53:34,269 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-22 01:53:34,270 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-22 01:53:34,270 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-22 01:53:34,271 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-22 01:53:34,272 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-22 01:53:34,275 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-22 01:53:34,275 INFO L153 SettingsManager]: * Use SBE=true [2024-11-22 01:53:34,275 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-22 01:53:34,276 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-22 01:53:34,276 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-22 01:53:34,276 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-22 01:53:34,276 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-22 01:53:34,276 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-22 01:53:34,278 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-22 01:53:34,279 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-22 01:53:34,279 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-22 01:53:34,279 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-22 01:53:34,279 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-22 01:53:34,279 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-22 01:53:34,280 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-22 01:53:34,280 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-22 01:53:34,280 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-22 01:53:34,280 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-22 01:53:34,280 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-22 01:53:34,280 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 01:53:34,281 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-22 01:53:34,281 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-22 01:53:34,281 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-22 01:53:34,281 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-22 01:53:34,281 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-22 01:53:34,281 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-22 01:53:34,282 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-22 01:53:34,282 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-22 01:53:34,283 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-22 01:53:34,283 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 102266cd9873aec631509424dd889c2e48b781667738cfaa50930481a41b1570 [2024-11-22 01:53:34,496 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-22 01:53:34,523 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-22 01:53:34,526 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-22 01:53:34,528 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-22 01:53:34,528 INFO L274 PluginConnector]: CDTParser initialized [2024-11-22 01:53:34,529 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/email_spec27_product13.cil.c [2024-11-22 01:53:36,047 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-22 01:53:36,317 INFO L384 CDTParser]: Found 1 translation units. [2024-11-22 01:53:36,318 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/email_spec27_product13.cil.c [2024-11-22 01:53:36,337 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8d852d3e9/6b5d5906d5184453ab8d018b944f97d1/FLAGf1fb08f1f [2024-11-22 01:53:36,624 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8d852d3e9/6b5d5906d5184453ab8d018b944f97d1 [2024-11-22 01:53:36,626 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-22 01:53:36,628 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-22 01:53:36,628 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-22 01:53:36,629 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-22 01:53:36,634 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-22 01:53:36,635 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:53:36" (1/1) ... [2024-11-22 01:53:36,635 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5d35facc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:53:36, skipping insertion in model container [2024-11-22 01:53:36,636 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:53:36" (1/1) ... [2024-11-22 01:53:36,707 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-22 01:53:37,187 WARN L250 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_spec27_product13.cil.c[61687,61700] [2024-11-22 01:53:37,191 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 01:53:37,215 INFO L200 MainTranslator]: Completed pre-run [2024-11-22 01:53:37,224 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Util.i","") [48] [2024-11-22 01:53:37,225 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [66] [2024-11-22 01:53:37,226 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [432] [2024-11-22 01:53:37,226 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Email.i","") [481] [2024-11-22 01:53:37,226 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Client.i","") [588] [2024-11-22 01:53:37,227 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"ClientLib.i","") [855] [2024-11-22 01:53:37,227 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [1930] [2024-11-22 01:53:37,227 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"VerifyForward_spec.i","") [2204] [2024-11-22 01:53:37,227 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"EmailLib.i","") [2236] [2024-11-22 01:53:37,228 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [2637] [2024-11-22 01:53:37,228 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [2850] [2024-11-22 01:53:37,329 WARN L250 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_spec27_product13.cil.c[61687,61700] [2024-11-22 01:53:37,329 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 01:53:37,367 INFO L204 MainTranslator]: Completed translation [2024-11-22 01:53:37,368 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:53:37 WrapperNode [2024-11-22 01:53:37,368 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-22 01:53:37,369 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-22 01:53:37,369 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-22 01:53:37,369 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-22 01:53:37,376 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:53:37" (1/1) ... [2024-11-22 01:53:37,401 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:53:37" (1/1) ... [2024-11-22 01:53:37,442 INFO L138 Inliner]: procedures = 124, calls = 178, calls flagged for inlining = 52, calls inlined = 44, statements flattened = 825 [2024-11-22 01:53:37,442 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-22 01:53:37,443 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-22 01:53:37,443 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-22 01:53:37,443 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-22 01:53:37,454 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:53:37" (1/1) ... [2024-11-22 01:53:37,455 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:53:37" (1/1) ... [2024-11-22 01:53:37,459 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:53:37" (1/1) ... [2024-11-22 01:53:37,475 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]. [2024-11-22 01:53:37,476 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:53:37" (1/1) ... [2024-11-22 01:53:37,476 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:53:37" (1/1) ... [2024-11-22 01:53:37,509 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:53:37" (1/1) ... [2024-11-22 01:53:37,515 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:53:37" (1/1) ... [2024-11-22 01:53:37,517 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:53:37" (1/1) ... [2024-11-22 01:53:37,520 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:53:37" (1/1) ... [2024-11-22 01:53:37,524 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-22 01:53:37,524 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-22 01:53:37,525 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-22 01:53:37,525 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-22 01:53:37,525 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:53:37" (1/1) ... [2024-11-22 01:53:37,536 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 01:53:37,551 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 01:53:37,574 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) [2024-11-22 01:53:37,598 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 [2024-11-22 01:53:37,660 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2024-11-22 01:53:37,661 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2024-11-22 01:53:37,661 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2024-11-22 01:53:37,661 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2024-11-22 01:53:37,661 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2024-11-22 01:53:37,661 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2024-11-22 01:53:37,661 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2024-11-22 01:53:37,661 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2024-11-22 01:53:37,661 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2024-11-22 01:53:37,661 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2024-11-22 01:53:37,662 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2024-11-22 01:53:37,662 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2024-11-22 01:53:37,662 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2024-11-22 01:53:37,662 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2024-11-22 01:53:37,662 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2024-11-22 01:53:37,662 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2024-11-22 01:53:37,662 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-22 01:53:37,662 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2024-11-22 01:53:37,662 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2024-11-22 01:53:37,663 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2024-11-22 01:53:37,663 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2024-11-22 01:53:37,663 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2024-11-22 01:53:37,663 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2024-11-22 01:53:37,663 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2024-11-22 01:53:37,663 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2024-11-22 01:53:37,663 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2024-11-22 01:53:37,663 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2024-11-22 01:53:37,663 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2024-11-22 01:53:37,664 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2024-11-22 01:53:37,664 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2024-11-22 01:53:37,664 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2024-11-22 01:53:37,664 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2024-11-22 01:53:37,664 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2024-11-22 01:53:37,664 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-22 01:53:37,664 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-22 01:53:37,665 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-22 01:53:37,665 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-22 01:53:37,665 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2024-11-22 01:53:37,665 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2024-11-22 01:53:37,665 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-22 01:53:37,665 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-22 01:53:37,795 INFO L238 CfgBuilder]: Building ICFG [2024-11-22 01:53:37,798 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-22 01:53:38,714 INFO L? ?]: Removed 368 outVars from TransFormulas that were not future-live. [2024-11-22 01:53:38,715 INFO L287 CfgBuilder]: Performing block encoding [2024-11-22 01:53:38,738 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-22 01:53:38,738 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-22 01:53:38,739 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:53:38 BoogieIcfgContainer [2024-11-22 01:53:38,739 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-22 01:53:38,741 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-22 01:53:38,741 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-22 01:53:38,745 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-22 01:53:38,746 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 01:53:36" (1/3) ... [2024-11-22 01:53:38,747 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@44a0a37f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:53:38, skipping insertion in model container [2024-11-22 01:53:38,747 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:53:37" (2/3) ... [2024-11-22 01:53:38,747 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@44a0a37f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:53:38, skipping insertion in model container [2024-11-22 01:53:38,748 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:53:38" (3/3) ... [2024-11-22 01:53:38,749 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec27_product13.cil.c [2024-11-22 01:53:38,762 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-22 01:53:38,763 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-22 01:53:38,882 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-22 01:53:38,891 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;@1aad4c3b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-22 01:53:38,892 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-22 01:53:38,900 INFO L276 IsEmpty]: Start isEmpty. Operand has 278 states, 221 states have (on average 1.5475113122171946) internal successors, (342), 223 states have internal predecessors, (342), 38 states have call successors, (38), 17 states have call predecessors, (38), 17 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38) [2024-11-22 01:53:38,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2024-11-22 01:53:38,922 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:53:38,923 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, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 01:53:38,924 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:53:38,928 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:53:38,929 INFO L85 PathProgramCache]: Analyzing trace with hash -313384498, now seen corresponding path program 1 times [2024-11-22 01:53:38,936 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:53:38,937 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [357030127] [2024-11-22 01:53:38,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:53:38,937 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:53:39,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:53:39,468 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-11-22 01:53:39,469 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:53:39,469 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [357030127] [2024-11-22 01:53:39,470 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [357030127] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 01:53:39,475 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1841143925] [2024-11-22 01:53:39,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:53:39,476 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 01:53:39,476 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 01:53:39,484 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) [2024-11-22 01:53:39,485 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-22 01:53:39,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:53:39,819 INFO L255 TraceCheckSpWp]: Trace formula consists of 979 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-22 01:53:39,825 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 01:53:39,843 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-22 01:53:39,843 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 01:53:39,844 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1841143925] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:53:39,844 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 01:53:39,844 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 5 [2024-11-22 01:53:39,849 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1596519686] [2024-11-22 01:53:39,849 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:53:39,855 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-22 01:53:39,856 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:53:39,878 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-22 01:53:39,879 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-22 01:53:39,883 INFO L87 Difference]: Start difference. First operand has 278 states, 221 states have (on average 1.5475113122171946) internal successors, (342), 223 states have internal predecessors, (342), 38 states have call successors, (38), 17 states have call predecessors, (38), 17 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38) Second operand has 2 states, 2 states have (on average 31.0) internal successors, (62), 2 states have internal predecessors, (62), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-22 01:53:39,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:53:39,931 INFO L93 Difference]: Finished difference Result 407 states and 598 transitions. [2024-11-22 01:53:39,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-22 01:53:39,933 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 31.0) internal successors, (62), 2 states have internal predecessors, (62), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 105 [2024-11-22 01:53:39,934 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:53:39,942 INFO L225 Difference]: With dead ends: 407 [2024-11-22 01:53:39,942 INFO L226 Difference]: Without dead ends: 271 [2024-11-22 01:53:39,945 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 106 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-22 01:53:39,947 INFO L432 NwaCegarLoop]: 414 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 414 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 01:53:39,948 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 414 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 01:53:39,961 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 271 states. [2024-11-22 01:53:39,986 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 271 to 271. [2024-11-22 01:53:39,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 271 states, 215 states have (on average 1.5395348837209302) internal successors, (331), 216 states have internal predecessors, (331), 38 states have call successors, (38), 17 states have call predecessors, (38), 17 states have return successors, (37), 37 states have call predecessors, (37), 37 states have call successors, (37) [2024-11-22 01:53:39,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 271 states to 271 states and 406 transitions. [2024-11-22 01:53:39,991 INFO L78 Accepts]: Start accepts. Automaton has 271 states and 406 transitions. Word has length 105 [2024-11-22 01:53:39,992 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:53:39,992 INFO L471 AbstractCegarLoop]: Abstraction has 271 states and 406 transitions. [2024-11-22 01:53:39,992 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 31.0) internal successors, (62), 2 states have internal predecessors, (62), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-22 01:53:39,993 INFO L276 IsEmpty]: Start isEmpty. Operand 271 states and 406 transitions. [2024-11-22 01:53:39,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2024-11-22 01:53:39,997 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:53:39,997 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 01:53:40,006 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-22 01:53:40,198 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 [2024-11-22 01:53:40,199 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:53:40,199 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:53:40,199 INFO L85 PathProgramCache]: Analyzing trace with hash 911408720, now seen corresponding path program 1 times [2024-11-22 01:53:40,200 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:53:40,200 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [845639460] [2024-11-22 01:53:40,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:53:40,200 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:53:40,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:53:40,483 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-11-22 01:53:40,483 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:53:40,483 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [845639460] [2024-11-22 01:53:40,483 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [845639460] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 01:53:40,484 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1208330992] [2024-11-22 01:53:40,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:53:40,484 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 01:53:40,484 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 01:53:40,486 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) [2024-11-22 01:53:40,488 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-22 01:53:40,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:53:40,701 INFO L255 TraceCheckSpWp]: Trace formula consists of 980 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-22 01:53:40,706 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 01:53:40,734 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-22 01:53:40,738 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 01:53:40,738 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1208330992] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:53:40,738 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 01:53:40,738 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2024-11-22 01:53:40,739 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [53957312] [2024-11-22 01:53:40,739 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:53:40,740 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 01:53:40,740 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:53:40,740 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 01:53:40,740 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 01:53:40,741 INFO L87 Difference]: Start difference. First operand 271 states and 406 transitions. Second operand has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-22 01:53:40,777 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:53:40,778 INFO L93 Difference]: Finished difference Result 397 states and 579 transitions. [2024-11-22 01:53:40,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 01:53:40,778 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 106 [2024-11-22 01:53:40,779 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:53:40,781 INFO L225 Difference]: With dead ends: 397 [2024-11-22 01:53:40,781 INFO L226 Difference]: Without dead ends: 274 [2024-11-22 01:53:40,782 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 106 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 01:53:40,783 INFO L432 NwaCegarLoop]: 404 mSDtfsCounter, 1 mSDsluCounter, 402 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 806 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 01:53:40,783 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 806 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 01:53:40,784 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 274 states. [2024-11-22 01:53:40,794 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 274 to 273. [2024-11-22 01:53:40,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 273 states, 217 states have (on average 1.5345622119815667) internal successors, (333), 218 states have internal predecessors, (333), 38 states have call successors, (38), 17 states have call predecessors, (38), 17 states have return successors, (37), 37 states have call predecessors, (37), 37 states have call successors, (37) [2024-11-22 01:53:40,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 273 states to 273 states and 408 transitions. [2024-11-22 01:53:40,797 INFO L78 Accepts]: Start accepts. Automaton has 273 states and 408 transitions. Word has length 106 [2024-11-22 01:53:40,797 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:53:40,797 INFO L471 AbstractCegarLoop]: Abstraction has 273 states and 408 transitions. [2024-11-22 01:53:40,798 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-22 01:53:40,798 INFO L276 IsEmpty]: Start isEmpty. Operand 273 states and 408 transitions. [2024-11-22 01:53:40,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2024-11-22 01:53:40,800 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:53:40,800 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, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 01:53:40,808 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-22 01:53:41,001 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 [2024-11-22 01:53:41,002 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:53:41,003 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:53:41,003 INFO L85 PathProgramCache]: Analyzing trace with hash -1386569223, now seen corresponding path program 1 times [2024-11-22 01:53:41,003 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:53:41,005 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1376199016] [2024-11-22 01:53:41,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:53:41,005 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:53:41,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:53:41,283 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-22 01:53:41,286 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:53:41,287 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1376199016] [2024-11-22 01:53:41,287 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1376199016] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 01:53:41,287 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1671350393] [2024-11-22 01:53:41,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:53:41,287 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 01:53:41,287 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 01:53:41,291 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) [2024-11-22 01:53:41,304 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-22 01:53:41,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:53:41,597 INFO L255 TraceCheckSpWp]: Trace formula consists of 992 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-22 01:53:41,606 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 01:53:41,639 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-22 01:53:41,642 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 01:53:41,643 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1671350393] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:53:41,643 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 01:53:41,643 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2024-11-22 01:53:41,643 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1109556253] [2024-11-22 01:53:41,643 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:53:41,644 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 01:53:41,644 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:53:41,645 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 01:53:41,645 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 01:53:41,645 INFO L87 Difference]: Start difference. First operand 273 states and 408 transitions. Second operand has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-22 01:53:41,694 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:53:41,695 INFO L93 Difference]: Finished difference Result 571 states and 867 transitions. [2024-11-22 01:53:41,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 01:53:41,696 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 112 [2024-11-22 01:53:41,696 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:53:41,702 INFO L225 Difference]: With dead ends: 571 [2024-11-22 01:53:41,703 INFO L226 Difference]: Without dead ends: 325 [2024-11-22 01:53:41,710 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 112 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 01:53:41,711 INFO L432 NwaCegarLoop]: 421 mSDtfsCounter, 99 mSDsluCounter, 360 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 114 SdHoareTripleChecker+Valid, 781 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 01:53:41,712 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [114 Valid, 781 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 01:53:41,713 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 325 states. [2024-11-22 01:53:41,747 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 325 to 317. [2024-11-22 01:53:41,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 317 states, 250 states have (on average 1.548) internal successors, (387), 251 states have internal predecessors, (387), 49 states have call successors, (49), 17 states have call predecessors, (49), 17 states have return successors, (48), 48 states have call predecessors, (48), 48 states have call successors, (48) [2024-11-22 01:53:41,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 317 states to 317 states and 484 transitions. [2024-11-22 01:53:41,755 INFO L78 Accepts]: Start accepts. Automaton has 317 states and 484 transitions. Word has length 112 [2024-11-22 01:53:41,756 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:53:41,756 INFO L471 AbstractCegarLoop]: Abstraction has 317 states and 484 transitions. [2024-11-22 01:53:41,756 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-22 01:53:41,756 INFO L276 IsEmpty]: Start isEmpty. Operand 317 states and 484 transitions. [2024-11-22 01:53:41,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2024-11-22 01:53:41,762 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:53:41,763 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, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 01:53:41,780 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-22 01:53:41,963 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 [2024-11-22 01:53:41,964 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:53:41,965 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:53:41,966 INFO L85 PathProgramCache]: Analyzing trace with hash 208664483, now seen corresponding path program 1 times [2024-11-22 01:53:41,966 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:53:41,966 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [810861791] [2024-11-22 01:53:41,967 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:53:41,967 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:53:42,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:53:42,194 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-22 01:53:42,195 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:53:42,195 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [810861791] [2024-11-22 01:53:42,195 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [810861791] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 01:53:42,195 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [987490137] [2024-11-22 01:53:42,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:53:42,196 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 01:53:42,196 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 01:53:42,198 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) [2024-11-22 01:53:42,199 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-22 01:53:42,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:53:42,474 INFO L255 TraceCheckSpWp]: Trace formula consists of 997 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-22 01:53:42,481 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 01:53:42,534 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-22 01:53:42,534 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 01:53:42,534 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [987490137] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:53:42,535 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 01:53:42,535 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 8 [2024-11-22 01:53:42,535 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1419988405] [2024-11-22 01:53:42,535 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:53:42,535 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 01:53:42,536 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:53:42,536 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 01:53:42,536 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-11-22 01:53:42,536 INFO L87 Difference]: Start difference. First operand 317 states and 484 transitions. Second operand has 5 states, 4 states have (on average 19.5) internal successors, (78), 5 states have internal predecessors, (78), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) [2024-11-22 01:53:42,583 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:53:42,584 INFO L93 Difference]: Finished difference Result 625 states and 958 transitions. [2024-11-22 01:53:42,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 01:53:42,585 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 19.5) internal successors, (78), 5 states have internal predecessors, (78), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) Word has length 113 [2024-11-22 01:53:42,585 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:53:42,588 INFO L225 Difference]: With dead ends: 625 [2024-11-22 01:53:42,588 INFO L226 Difference]: Without dead ends: 319 [2024-11-22 01:53:42,589 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 117 GetRequests, 111 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-11-22 01:53:42,590 INFO L432 NwaCegarLoop]: 398 mSDtfsCounter, 2 mSDsluCounter, 1183 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 1581 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 01:53:42,590 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 1581 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 01:53:42,591 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 319 states. [2024-11-22 01:53:42,599 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 319 to 319. [2024-11-22 01:53:42,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 319 states, 251 states have (on average 1.545816733067729) internal successors, (388), 253 states have internal predecessors, (388), 49 states have call successors, (49), 17 states have call predecessors, (49), 18 states have return successors, (50), 48 states have call predecessors, (50), 48 states have call successors, (50) [2024-11-22 01:53:42,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 319 states to 319 states and 487 transitions. [2024-11-22 01:53:42,602 INFO L78 Accepts]: Start accepts. Automaton has 319 states and 487 transitions. Word has length 113 [2024-11-22 01:53:42,602 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:53:42,602 INFO L471 AbstractCegarLoop]: Abstraction has 319 states and 487 transitions. [2024-11-22 01:53:42,602 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 19.5) internal successors, (78), 5 states have internal predecessors, (78), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) [2024-11-22 01:53:42,603 INFO L276 IsEmpty]: Start isEmpty. Operand 319 states and 487 transitions. [2024-11-22 01:53:42,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2024-11-22 01:53:42,604 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:53:42,604 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, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 01:53:42,613 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-22 01:53:42,805 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 [2024-11-22 01:53:42,805 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:53:42,806 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:53:42,806 INFO L85 PathProgramCache]: Analyzing trace with hash 986410081, now seen corresponding path program 1 times [2024-11-22 01:53:42,806 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:53:42,806 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [566159001] [2024-11-22 01:53:42,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:53:42,806 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:53:42,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:53:42,929 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-22 01:53:42,930 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:53:42,930 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [566159001] [2024-11-22 01:53:42,930 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [566159001] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 01:53:42,930 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1086164449] [2024-11-22 01:53:42,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:53:42,930 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 01:53:42,931 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 01:53:42,933 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) [2024-11-22 01:53:42,934 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-22 01:53:43,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:53:43,166 INFO L255 TraceCheckSpWp]: Trace formula consists of 998 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-22 01:53:43,169 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 01:53:43,212 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-22 01:53:43,213 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 01:53:43,213 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1086164449] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:53:43,213 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 01:53:43,213 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8] total 11 [2024-11-22 01:53:43,214 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [168755382] [2024-11-22 01:53:43,214 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:53:43,214 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 01:53:43,214 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:53:43,215 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 01:53:43,215 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2024-11-22 01:53:43,215 INFO L87 Difference]: Start difference. First operand 319 states and 487 transitions. Second operand has 5 states, 5 states have (on average 16.0) internal successors, (80), 5 states have internal predecessors, (80), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2024-11-22 01:53:43,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:53:43,277 INFO L93 Difference]: Finished difference Result 627 states and 963 transitions. [2024-11-22 01:53:43,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 01:53:43,278 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 5 states have internal predecessors, (80), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) Word has length 114 [2024-11-22 01:53:43,279 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:53:43,280 INFO L225 Difference]: With dead ends: 627 [2024-11-22 01:53:43,281 INFO L226 Difference]: Without dead ends: 321 [2024-11-22 01:53:43,282 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 112 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2024-11-22 01:53:43,282 INFO L432 NwaCegarLoop]: 396 mSDtfsCounter, 2 mSDsluCounter, 1171 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 1567 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 01:53:43,283 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 1567 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 01:53:43,284 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 321 states. [2024-11-22 01:53:43,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 321 to 321. [2024-11-22 01:53:43,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 321 states, 252 states have (on average 1.5436507936507937) internal successors, (389), 255 states have internal predecessors, (389), 49 states have call successors, (49), 17 states have call predecessors, (49), 19 states have return successors, (55), 48 states have call predecessors, (55), 48 states have call successors, (55) [2024-11-22 01:53:43,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 321 states to 321 states and 493 transitions. [2024-11-22 01:53:43,296 INFO L78 Accepts]: Start accepts. Automaton has 321 states and 493 transitions. Word has length 114 [2024-11-22 01:53:43,296 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:53:43,296 INFO L471 AbstractCegarLoop]: Abstraction has 321 states and 493 transitions. [2024-11-22 01:53:43,296 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 5 states have internal predecessors, (80), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2024-11-22 01:53:43,296 INFO L276 IsEmpty]: Start isEmpty. Operand 321 states and 493 transitions. [2024-11-22 01:53:43,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2024-11-22 01:53:43,298 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:53:43,298 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, 1, 1, 1, 1] [2024-11-22 01:53:43,310 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-22 01:53:43,499 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 [2024-11-22 01:53:43,500 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:53:43,500 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:53:43,500 INFO L85 PathProgramCache]: Analyzing trace with hash 1984465576, now seen corresponding path program 1 times [2024-11-22 01:53:43,501 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:53:43,501 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [969080076] [2024-11-22 01:53:43,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:53:43,501 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:53:43,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:53:43,667 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-22 01:53:43,667 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:53:43,667 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [969080076] [2024-11-22 01:53:43,668 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [969080076] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:53:43,668 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 01:53:43,668 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 01:53:43,668 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [662031401] [2024-11-22 01:53:43,668 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:53:43,669 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 01:53:43,669 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:53:43,670 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 01:53:43,670 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-22 01:53:43,670 INFO L87 Difference]: Start difference. First operand 321 states and 493 transitions. Second operand has 5 states, 4 states have (on average 19.0) internal successors, (76), 5 states have internal predecessors, (76), 3 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) [2024-11-22 01:53:43,707 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:53:43,708 INFO L93 Difference]: Finished difference Result 619 states and 954 transitions. [2024-11-22 01:53:43,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 01:53:43,709 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 19.0) internal successors, (76), 5 states have internal predecessors, (76), 3 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) Word has length 115 [2024-11-22 01:53:43,709 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:53:43,711 INFO L225 Difference]: With dead ends: 619 [2024-11-22 01:53:43,711 INFO L226 Difference]: Without dead ends: 321 [2024-11-22 01:53:43,713 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-22 01:53:43,713 INFO L432 NwaCegarLoop]: 399 mSDtfsCounter, 2 mSDsluCounter, 1186 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 1585 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 01:53:43,713 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 1585 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 01:53:43,714 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 321 states. [2024-11-22 01:53:43,723 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 321 to 321. [2024-11-22 01:53:43,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 321 states, 252 states have (on average 1.5436507936507937) internal successors, (389), 255 states have internal predecessors, (389), 49 states have call successors, (49), 17 states have call predecessors, (49), 19 states have return successors, (54), 48 states have call predecessors, (54), 48 states have call successors, (54) [2024-11-22 01:53:43,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 321 states to 321 states and 492 transitions. [2024-11-22 01:53:43,726 INFO L78 Accepts]: Start accepts. Automaton has 321 states and 492 transitions. Word has length 115 [2024-11-22 01:53:43,726 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:53:43,726 INFO L471 AbstractCegarLoop]: Abstraction has 321 states and 492 transitions. [2024-11-22 01:53:43,727 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 19.0) internal successors, (76), 5 states have internal predecessors, (76), 3 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) [2024-11-22 01:53:43,727 INFO L276 IsEmpty]: Start isEmpty. Operand 321 states and 492 transitions. [2024-11-22 01:53:43,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2024-11-22 01:53:43,729 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:53:43,729 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 01:53:43,729 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-22 01:53:43,730 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:53:43,730 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:53:43,730 INFO L85 PathProgramCache]: Analyzing trace with hash 808233348, now seen corresponding path program 2 times [2024-11-22 01:53:43,730 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:53:43,730 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1540043933] [2024-11-22 01:53:43,731 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-22 01:53:43,731 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:53:43,757 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-22 01:53:43,758 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-22 01:53:43,829 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2024-11-22 01:53:43,833 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:53:43,833 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1540043933] [2024-11-22 01:53:43,833 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1540043933] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:53:43,833 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 01:53:43,833 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 01:53:43,834 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1935756288] [2024-11-22 01:53:43,834 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:53:43,834 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 01:53:43,834 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:53:43,835 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 01:53:43,835 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-22 01:53:43,835 INFO L87 Difference]: Start difference. First operand 321 states and 492 transitions. Second operand has 5 states, 5 states have (on average 14.6) internal successors, (73), 4 states have internal predecessors, (73), 2 states have call successors, (15), 1 states have call predecessors, (15), 2 states have return successors, (13), 3 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-22 01:53:43,860 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:53:43,860 INFO L93 Difference]: Finished difference Result 434 states and 648 transitions. [2024-11-22 01:53:43,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 01:53:43,861 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.6) internal successors, (73), 4 states have internal predecessors, (73), 2 states have call successors, (15), 1 states have call predecessors, (15), 2 states have return successors, (13), 3 states have call predecessors, (13), 2 states have call successors, (13) Word has length 116 [2024-11-22 01:53:43,861 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:53:43,863 INFO L225 Difference]: With dead ends: 434 [2024-11-22 01:53:43,863 INFO L226 Difference]: Without dead ends: 321 [2024-11-22 01:53:43,864 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-22 01:53:43,865 INFO L432 NwaCegarLoop]: 403 mSDtfsCounter, 0 mSDsluCounter, 1202 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1605 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 01:53:43,865 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1605 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 01:53:43,866 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 321 states. [2024-11-22 01:53:43,873 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 321 to 321. [2024-11-22 01:53:43,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 321 states, 252 states have (on average 1.5396825396825398) internal successors, (388), 255 states have internal predecessors, (388), 49 states have call successors, (49), 17 states have call predecessors, (49), 19 states have return successors, (54), 48 states have call predecessors, (54), 48 states have call successors, (54) [2024-11-22 01:53:43,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 321 states to 321 states and 491 transitions. [2024-11-22 01:53:43,877 INFO L78 Accepts]: Start accepts. Automaton has 321 states and 491 transitions. Word has length 116 [2024-11-22 01:53:43,877 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:53:43,877 INFO L471 AbstractCegarLoop]: Abstraction has 321 states and 491 transitions. [2024-11-22 01:53:43,878 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.6) internal successors, (73), 4 states have internal predecessors, (73), 2 states have call successors, (15), 1 states have call predecessors, (15), 2 states have return successors, (13), 3 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-22 01:53:43,878 INFO L276 IsEmpty]: Start isEmpty. Operand 321 states and 491 transitions. [2024-11-22 01:53:43,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2024-11-22 01:53:43,879 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:53:43,880 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 01:53:43,880 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-22 01:53:43,880 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:53:43,880 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:53:43,880 INFO L85 PathProgramCache]: Analyzing trace with hash -504960405, now seen corresponding path program 1 times [2024-11-22 01:53:43,880 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:53:43,881 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [237060552] [2024-11-22 01:53:43,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:53:43,881 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:53:43,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:53:44,001 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-22 01:53:44,002 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:53:44,002 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [237060552] [2024-11-22 01:53:44,002 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [237060552] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:53:44,002 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 01:53:44,002 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 01:53:44,003 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [384429221] [2024-11-22 01:53:44,003 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:53:44,003 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 01:53:44,003 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:53:44,004 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 01:53:44,004 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-22 01:53:44,004 INFO L87 Difference]: Start difference. First operand 321 states and 491 transitions. Second operand has 5 states, 4 states have (on average 20.5) internal successors, (82), 5 states have internal predecessors, (82), 3 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 3 states have call successors, (14) [2024-11-22 01:53:44,034 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:53:44,034 INFO L93 Difference]: Finished difference Result 621 states and 955 transitions. [2024-11-22 01:53:44,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 01:53:44,035 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 20.5) internal successors, (82), 5 states have internal predecessors, (82), 3 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 3 states have call successors, (14) Word has length 123 [2024-11-22 01:53:44,035 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:53:44,037 INFO L225 Difference]: With dead ends: 621 [2024-11-22 01:53:44,037 INFO L226 Difference]: Without dead ends: 323 [2024-11-22 01:53:44,038 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-22 01:53:44,039 INFO L432 NwaCegarLoop]: 399 mSDtfsCounter, 1 mSDsluCounter, 1185 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 1584 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 01:53:44,039 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 1584 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 01:53:44,040 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 323 states. [2024-11-22 01:53:44,052 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 323 to 323. [2024-11-22 01:53:44,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 323 states, 253 states have (on average 1.5375494071146245) internal successors, (389), 257 states have internal predecessors, (389), 49 states have call successors, (49), 17 states have call predecessors, (49), 20 states have return successors, (56), 48 states have call predecessors, (56), 48 states have call successors, (56) [2024-11-22 01:53:44,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 323 states to 323 states and 494 transitions. [2024-11-22 01:53:44,055 INFO L78 Accepts]: Start accepts. Automaton has 323 states and 494 transitions. Word has length 123 [2024-11-22 01:53:44,056 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:53:44,056 INFO L471 AbstractCegarLoop]: Abstraction has 323 states and 494 transitions. [2024-11-22 01:53:44,056 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 20.5) internal successors, (82), 5 states have internal predecessors, (82), 3 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 3 states have call successors, (14) [2024-11-22 01:53:44,057 INFO L276 IsEmpty]: Start isEmpty. Operand 323 states and 494 transitions. [2024-11-22 01:53:44,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2024-11-22 01:53:44,059 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:53:44,059 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 01:53:44,059 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-22 01:53:44,059 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:53:44,060 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:53:44,060 INFO L85 PathProgramCache]: Analyzing trace with hash -748429406, now seen corresponding path program 1 times [2024-11-22 01:53:44,060 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:53:44,060 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2083455344] [2024-11-22 01:53:44,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:53:44,060 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:53:44,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:53:44,241 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-22 01:53:44,241 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:53:44,241 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2083455344] [2024-11-22 01:53:44,242 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2083455344] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:53:44,242 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 01:53:44,242 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-22 01:53:44,242 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [366504365] [2024-11-22 01:53:44,242 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:53:44,242 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-22 01:53:44,243 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:53:44,243 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-22 01:53:44,243 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-22 01:53:44,244 INFO L87 Difference]: Start difference. First operand 323 states and 494 transitions. Second operand has 8 states, 7 states have (on average 12.285714285714286) internal successors, (86), 8 states have internal predecessors, (86), 4 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) [2024-11-22 01:53:44,374 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:53:44,374 INFO L93 Difference]: Finished difference Result 623 states and 954 transitions. [2024-11-22 01:53:44,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-22 01:53:44,375 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 12.285714285714286) internal successors, (86), 8 states have internal predecessors, (86), 4 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) Word has length 124 [2024-11-22 01:53:44,375 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:53:44,377 INFO L225 Difference]: With dead ends: 623 [2024-11-22 01:53:44,377 INFO L226 Difference]: Without dead ends: 325 [2024-11-22 01:53:44,380 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-11-22 01:53:44,382 INFO L432 NwaCegarLoop]: 389 mSDtfsCounter, 7 mSDsluCounter, 2305 mSDsCounter, 0 mSdLazyCounter, 145 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 2694 SdHoareTripleChecker+Invalid, 149 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 145 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 01:53:44,382 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 2694 Invalid, 149 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 145 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 01:53:44,383 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 325 states. [2024-11-22 01:53:44,396 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 325 to 325. [2024-11-22 01:53:44,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 325 states, 255 states have (on average 1.5333333333333334) internal successors, (391), 258 states have internal predecessors, (391), 49 states have call successors, (49), 18 states have call predecessors, (49), 20 states have return successors, (55), 48 states have call predecessors, (55), 48 states have call successors, (55) [2024-11-22 01:53:44,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 325 states to 325 states and 495 transitions. [2024-11-22 01:53:44,401 INFO L78 Accepts]: Start accepts. Automaton has 325 states and 495 transitions. Word has length 124 [2024-11-22 01:53:44,401 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:53:44,401 INFO L471 AbstractCegarLoop]: Abstraction has 325 states and 495 transitions. [2024-11-22 01:53:44,402 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 12.285714285714286) internal successors, (86), 8 states have internal predecessors, (86), 4 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) [2024-11-22 01:53:44,402 INFO L276 IsEmpty]: Start isEmpty. Operand 325 states and 495 transitions. [2024-11-22 01:53:44,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2024-11-22 01:53:44,404 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:53:44,405 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 01:53:44,405 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-22 01:53:44,405 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:53:44,406 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:53:44,409 INFO L85 PathProgramCache]: Analyzing trace with hash -56368561, now seen corresponding path program 2 times [2024-11-22 01:53:44,409 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:53:44,409 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [750443960] [2024-11-22 01:53:44,410 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-22 01:53:44,410 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:53:44,449 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-22 01:53:44,450 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-22 01:53:44,591 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2024-11-22 01:53:44,592 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:53:44,592 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [750443960] [2024-11-22 01:53:44,592 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [750443960] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:53:44,592 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 01:53:44,592 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-22 01:53:44,592 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [748080085] [2024-11-22 01:53:44,592 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:53:44,593 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-22 01:53:44,593 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:53:44,593 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-22 01:53:44,593 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-22 01:53:44,594 INFO L87 Difference]: Start difference. First operand 325 states and 495 transitions. Second operand has 7 states, 6 states have (on average 14.0) internal successors, (84), 7 states have internal predecessors, (84), 4 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) [2024-11-22 01:53:44,663 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:53:44,664 INFO L93 Difference]: Finished difference Result 623 states and 958 transitions. [2024-11-22 01:53:44,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-22 01:53:44,665 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 14.0) internal successors, (84), 7 states have internal predecessors, (84), 4 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) Word has length 125 [2024-11-22 01:53:44,665 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:53:44,667 INFO L225 Difference]: With dead ends: 623 [2024-11-22 01:53:44,667 INFO L226 Difference]: Without dead ends: 327 [2024-11-22 01:53:44,668 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-22 01:53:44,669 INFO L432 NwaCegarLoop]: 397 mSDtfsCounter, 2 mSDsluCounter, 1957 mSDsCounter, 0 mSdLazyCounter, 86 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 2354 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 86 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 01:53:44,669 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 2354 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 86 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 01:53:44,670 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 327 states. [2024-11-22 01:53:44,677 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 327 to 327. [2024-11-22 01:53:44,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 327 states, 256 states have (on average 1.53125) internal successors, (392), 260 states have internal predecessors, (392), 49 states have call successors, (49), 18 states have call predecessors, (49), 21 states have return successors, (60), 48 states have call predecessors, (60), 48 states have call successors, (60) [2024-11-22 01:53:44,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 327 states to 327 states and 501 transitions. [2024-11-22 01:53:44,680 INFO L78 Accepts]: Start accepts. Automaton has 327 states and 501 transitions. Word has length 125 [2024-11-22 01:53:44,680 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:53:44,680 INFO L471 AbstractCegarLoop]: Abstraction has 327 states and 501 transitions. [2024-11-22 01:53:44,680 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 14.0) internal successors, (84), 7 states have internal predecessors, (84), 4 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) [2024-11-22 01:53:44,680 INFO L276 IsEmpty]: Start isEmpty. Operand 327 states and 501 transitions. [2024-11-22 01:53:44,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2024-11-22 01:53:44,682 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:53:44,682 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 01:53:44,682 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-22 01:53:44,682 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:53:44,682 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:53:44,683 INFO L85 PathProgramCache]: Analyzing trace with hash -455391267, now seen corresponding path program 1 times [2024-11-22 01:53:44,683 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:53:44,683 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1437074976] [2024-11-22 01:53:44,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:53:44,683 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:53:44,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:53:44,765 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-22 01:53:44,765 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:53:44,765 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1437074976] [2024-11-22 01:53:44,765 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1437074976] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 01:53:44,766 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [132626117] [2024-11-22 01:53:44,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:53:44,766 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 01:53:44,766 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 01:53:44,768 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) [2024-11-22 01:53:44,769 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-22 01:53:44,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:53:44,995 INFO L255 TraceCheckSpWp]: Trace formula consists of 1023 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-22 01:53:44,998 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 01:53:45,016 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-22 01:53:45,016 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 01:53:45,083 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-22 01:53:45,083 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [132626117] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-22 01:53:45,083 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-22 01:53:45,083 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2024-11-22 01:53:45,084 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [650600658] [2024-11-22 01:53:45,084 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-22 01:53:45,084 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-22 01:53:45,084 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:53:45,085 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-22 01:53:45,085 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-11-22 01:53:45,085 INFO L87 Difference]: Start difference. First operand 327 states and 501 transitions. Second operand has 7 states, 7 states have (on average 16.857142857142858) internal successors, (118), 7 states have internal predecessors, (118), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2024-11-22 01:53:45,185 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:53:45,185 INFO L93 Difference]: Finished difference Result 777 states and 1238 transitions. [2024-11-22 01:53:45,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-22 01:53:45,186 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.857142857142858) internal successors, (118), 7 states have internal predecessors, (118), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 126 [2024-11-22 01:53:45,186 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:53:45,189 INFO L225 Difference]: With dead ends: 777 [2024-11-22 01:53:45,189 INFO L226 Difference]: Without dead ends: 654 [2024-11-22 01:53:45,190 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 254 GetRequests, 249 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-11-22 01:53:45,190 INFO L432 NwaCegarLoop]: 435 mSDtfsCounter, 382 mSDsluCounter, 1116 mSDsCounter, 0 mSdLazyCounter, 73 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 427 SdHoareTripleChecker+Valid, 1551 SdHoareTripleChecker+Invalid, 83 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 73 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 01:53:45,191 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [427 Valid, 1551 Invalid, 83 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 73 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 01:53:45,191 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 654 states. [2024-11-22 01:53:45,205 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 654 to 630. [2024-11-22 01:53:45,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 630 states, 495 states have (on average 1.595959595959596) internal successors, (790), 499 states have internal predecessors, (790), 113 states have call successors, (113), 18 states have call predecessors, (113), 21 states have return successors, (134), 112 states have call predecessors, (134), 112 states have call successors, (134) [2024-11-22 01:53:45,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 630 states to 630 states and 1037 transitions. [2024-11-22 01:53:45,209 INFO L78 Accepts]: Start accepts. Automaton has 630 states and 1037 transitions. Word has length 126 [2024-11-22 01:53:45,209 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:53:45,209 INFO L471 AbstractCegarLoop]: Abstraction has 630 states and 1037 transitions. [2024-11-22 01:53:45,209 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.857142857142858) internal successors, (118), 7 states have internal predecessors, (118), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2024-11-22 01:53:45,210 INFO L276 IsEmpty]: Start isEmpty. Operand 630 states and 1037 transitions. [2024-11-22 01:53:45,212 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2024-11-22 01:53:45,212 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:53:45,213 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, 1, 1, 1] [2024-11-22 01:53:45,243 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-22 01:53:45,413 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 01:53:45,413 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:53:45,414 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:53:45,414 INFO L85 PathProgramCache]: Analyzing trace with hash 1800330048, now seen corresponding path program 1 times [2024-11-22 01:53:45,414 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:53:45,414 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1730430047] [2024-11-22 01:53:45,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:53:45,414 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:53:45,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:53:45,470 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-22 01:53:45,470 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:53:45,471 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1730430047] [2024-11-22 01:53:45,471 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1730430047] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:53:45,471 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 01:53:45,471 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 01:53:45,471 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1199730919] [2024-11-22 01:53:45,471 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:53:45,471 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 01:53:45,472 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:53:45,472 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 01:53:45,472 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 01:53:45,472 INFO L87 Difference]: Start difference. First operand 630 states and 1037 transitions. Second operand has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-22 01:53:45,497 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:53:45,497 INFO L93 Difference]: Finished difference Result 1498 states and 2504 transitions. [2024-11-22 01:53:45,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 01:53:45,498 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 132 [2024-11-22 01:53:45,498 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:53:45,502 INFO L225 Difference]: With dead ends: 1498 [2024-11-22 01:53:45,503 INFO L226 Difference]: Without dead ends: 938 [2024-11-22 01:53:45,505 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 01:53:45,505 INFO L432 NwaCegarLoop]: 414 mSDtfsCounter, 97 mSDsluCounter, 401 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 815 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 01:53:45,506 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [112 Valid, 815 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 01:53:45,506 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 938 states. [2024-11-22 01:53:45,531 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 938 to 930. [2024-11-22 01:53:45,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 930 states, 731 states have (on average 1.6073871409028728) internal successors, (1175), 735 states have internal predecessors, (1175), 177 states have call successors, (177), 18 states have call predecessors, (177), 21 states have return successors, (208), 176 states have call predecessors, (208), 176 states have call successors, (208) [2024-11-22 01:53:45,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 930 states to 930 states and 1560 transitions. [2024-11-22 01:53:45,538 INFO L78 Accepts]: Start accepts. Automaton has 930 states and 1560 transitions. Word has length 132 [2024-11-22 01:53:45,538 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:53:45,538 INFO L471 AbstractCegarLoop]: Abstraction has 930 states and 1560 transitions. [2024-11-22 01:53:45,538 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-22 01:53:45,538 INFO L276 IsEmpty]: Start isEmpty. Operand 930 states and 1560 transitions. [2024-11-22 01:53:45,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2024-11-22 01:53:45,542 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:53:45,542 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, 1, 1, 1, 1] [2024-11-22 01:53:45,542 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-22 01:53:45,542 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:53:45,543 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:53:45,543 INFO L85 PathProgramCache]: Analyzing trace with hash -2106799867, now seen corresponding path program 1 times [2024-11-22 01:53:45,543 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:53:45,543 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [892087488] [2024-11-22 01:53:45,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:53:45,543 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:53:45,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:53:45,592 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-22 01:53:45,593 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:53:45,593 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [892087488] [2024-11-22 01:53:45,593 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [892087488] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:53:45,593 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 01:53:45,593 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 01:53:45,593 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [839329126] [2024-11-22 01:53:45,593 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:53:45,594 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 01:53:45,594 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:53:45,594 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 01:53:45,594 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 01:53:45,594 INFO L87 Difference]: Start difference. First operand 930 states and 1560 transitions. Second operand has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 states have internal predecessors, (90), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-22 01:53:45,631 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:53:45,631 INFO L93 Difference]: Finished difference Result 2213 states and 3733 transitions. [2024-11-22 01:53:45,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 01:53:45,632 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 states have internal predecessors, (90), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 133 [2024-11-22 01:53:45,632 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:53:45,639 INFO L225 Difference]: With dead ends: 2213 [2024-11-22 01:53:45,639 INFO L226 Difference]: Without dead ends: 1406 [2024-11-22 01:53:45,642 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 01:53:45,642 INFO L432 NwaCegarLoop]: 406 mSDtfsCounter, 95 mSDsluCounter, 398 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 804 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 01:53:45,642 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [110 Valid, 804 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 01:53:45,644 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1406 states. [2024-11-22 01:53:45,678 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1406 to 1398. [2024-11-22 01:53:45,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1398 states, 1104 states have (on average 1.6141304347826086) internal successors, (1782), 1108 states have internal predecessors, (1782), 272 states have call successors, (272), 18 states have call predecessors, (272), 21 states have return successors, (303), 271 states have call predecessors, (303), 271 states have call successors, (303) [2024-11-22 01:53:45,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1398 states to 1398 states and 2357 transitions. [2024-11-22 01:53:45,687 INFO L78 Accepts]: Start accepts. Automaton has 1398 states and 2357 transitions. Word has length 133 [2024-11-22 01:53:45,687 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:53:45,688 INFO L471 AbstractCegarLoop]: Abstraction has 1398 states and 2357 transitions. [2024-11-22 01:53:45,688 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 states have internal predecessors, (90), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-22 01:53:45,688 INFO L276 IsEmpty]: Start isEmpty. Operand 1398 states and 2357 transitions. [2024-11-22 01:53:45,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-11-22 01:53:45,694 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:53:45,695 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, 1, 1, 1, 1, 1] [2024-11-22 01:53:45,695 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-22 01:53:45,695 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:53:45,695 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:53:45,695 INFO L85 PathProgramCache]: Analyzing trace with hash 888235454, now seen corresponding path program 1 times [2024-11-22 01:53:45,695 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:53:45,696 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [402940869] [2024-11-22 01:53:45,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:53:45,696 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:53:45,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:53:45,771 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-22 01:53:45,771 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:53:45,771 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [402940869] [2024-11-22 01:53:45,771 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [402940869] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:53:45,771 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 01:53:45,771 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 01:53:45,772 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1459078136] [2024-11-22 01:53:45,772 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:53:45,772 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 01:53:45,772 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:53:45,773 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 01:53:45,773 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 01:53:45,773 INFO L87 Difference]: Start difference. First operand 1398 states and 2357 transitions. Second operand has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-22 01:53:45,837 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:53:45,837 INFO L93 Difference]: Finished difference Result 3260 states and 5540 transitions. [2024-11-22 01:53:45,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 01:53:45,838 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 134 [2024-11-22 01:53:45,838 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:53:45,847 INFO L225 Difference]: With dead ends: 3260 [2024-11-22 01:53:45,847 INFO L226 Difference]: Without dead ends: 2110 [2024-11-22 01:53:45,852 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 01:53:45,852 INFO L432 NwaCegarLoop]: 404 mSDtfsCounter, 93 mSDsluCounter, 395 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 799 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 01:53:45,853 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [108 Valid, 799 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 01:53:45,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2110 states. [2024-11-22 01:53:45,918 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2110 to 2102. [2024-11-22 01:53:45,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2102 states, 1685 states have (on average 1.6195845697329376) internal successors, (2729), 1689 states have internal predecessors, (2729), 395 states have call successors, (395), 18 states have call predecessors, (395), 21 states have return successors, (442), 394 states have call predecessors, (442), 394 states have call successors, (442) [2024-11-22 01:53:45,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2102 states to 2102 states and 3566 transitions. [2024-11-22 01:53:45,929 INFO L78 Accepts]: Start accepts. Automaton has 2102 states and 3566 transitions. Word has length 134 [2024-11-22 01:53:45,929 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:53:45,929 INFO L471 AbstractCegarLoop]: Abstraction has 2102 states and 3566 transitions. [2024-11-22 01:53:45,929 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-22 01:53:45,929 INFO L276 IsEmpty]: Start isEmpty. Operand 2102 states and 3566 transitions. [2024-11-22 01:53:45,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-11-22 01:53:45,937 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:53:45,937 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, 1, 1, 1, 1, 1, 1] [2024-11-22 01:53:45,937 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-22 01:53:45,937 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:53:45,938 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:53:45,938 INFO L85 PathProgramCache]: Analyzing trace with hash 628019044, now seen corresponding path program 1 times [2024-11-22 01:53:45,938 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:53:45,938 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1776157869] [2024-11-22 01:53:45,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:53:45,938 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:53:45,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:53:45,984 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-22 01:53:45,985 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:53:45,985 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1776157869] [2024-11-22 01:53:45,985 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1776157869] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:53:45,985 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 01:53:45,985 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 01:53:45,985 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [766337870] [2024-11-22 01:53:45,985 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:53:45,985 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 01:53:45,986 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:53:45,986 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 01:53:45,986 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 01:53:45,986 INFO L87 Difference]: Start difference. First operand 2102 states and 3566 transitions. Second operand has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-22 01:53:46,052 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:53:46,053 INFO L93 Difference]: Finished difference Result 4879 states and 8337 transitions. [2024-11-22 01:53:46,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 01:53:46,053 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 135 [2024-11-22 01:53:46,053 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:53:46,066 INFO L225 Difference]: With dead ends: 4879 [2024-11-22 01:53:46,066 INFO L226 Difference]: Without dead ends: 3229 [2024-11-22 01:53:46,071 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 01:53:46,072 INFO L432 NwaCegarLoop]: 404 mSDtfsCounter, 91 mSDsluCounter, 395 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 SdHoareTripleChecker+Valid, 799 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 01:53:46,072 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [106 Valid, 799 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 01:53:46,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3229 states. [2024-11-22 01:53:46,192 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3229 to 3221. [2024-11-22 01:53:46,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3221 states, 2625 states have (on average 1.6228571428571428) internal successors, (4260), 2629 states have internal predecessors, (4260), 574 states have call successors, (574), 18 states have call predecessors, (574), 21 states have return successors, (647), 573 states have call predecessors, (647), 573 states have call successors, (647) [2024-11-22 01:53:46,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3221 states to 3221 states and 5481 transitions. [2024-11-22 01:53:46,206 INFO L78 Accepts]: Start accepts. Automaton has 3221 states and 5481 transitions. Word has length 135 [2024-11-22 01:53:46,207 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:53:46,207 INFO L471 AbstractCegarLoop]: Abstraction has 3221 states and 5481 transitions. [2024-11-22 01:53:46,207 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-22 01:53:46,207 INFO L276 IsEmpty]: Start isEmpty. Operand 3221 states and 5481 transitions. [2024-11-22 01:53:46,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2024-11-22 01:53:46,217 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:53:46,217 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, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 01:53:46,217 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-22 01:53:46,217 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:53:46,218 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:53:46,218 INFO L85 PathProgramCache]: Analyzing trace with hash -2088680734, now seen corresponding path program 1 times [2024-11-22 01:53:46,218 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:53:46,218 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [411120161] [2024-11-22 01:53:46,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:53:46,218 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:53:46,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:53:46,261 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-22 01:53:46,261 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:53:46,261 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [411120161] [2024-11-22 01:53:46,261 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [411120161] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:53:46,261 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 01:53:46,261 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 01:53:46,261 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1747146573] [2024-11-22 01:53:46,262 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:53:46,262 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 01:53:46,262 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:53:46,262 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 01:53:46,262 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 01:53:46,263 INFO L87 Difference]: Start difference. First operand 3221 states and 5481 transitions. Second operand has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-22 01:53:46,367 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:53:46,368 INFO L93 Difference]: Finished difference Result 7797 states and 13336 transitions. [2024-11-22 01:53:46,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 01:53:46,368 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 136 [2024-11-22 01:53:46,368 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:53:46,391 INFO L225 Difference]: With dead ends: 7797 [2024-11-22 01:53:46,392 INFO L226 Difference]: Without dead ends: 5260 [2024-11-22 01:53:46,401 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 01:53:46,402 INFO L432 NwaCegarLoop]: 413 mSDtfsCounter, 89 mSDsluCounter, 401 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 104 SdHoareTripleChecker+Valid, 814 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 01:53:46,402 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [104 Valid, 814 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 01:53:46,406 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5260 states. [2024-11-22 01:53:46,665 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5260 to 5252. [2024-11-22 01:53:46,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5252 states, 4280 states have (on average 1.6149532710280374) internal successors, (6912), 4284 states have internal predecessors, (6912), 950 states have call successors, (950), 18 states have call predecessors, (950), 21 states have return successors, (1067), 949 states have call predecessors, (1067), 949 states have call successors, (1067) [2024-11-22 01:53:46,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5252 states to 5252 states and 8929 transitions. [2024-11-22 01:53:46,711 INFO L78 Accepts]: Start accepts. Automaton has 5252 states and 8929 transitions. Word has length 136 [2024-11-22 01:53:46,711 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:53:46,712 INFO L471 AbstractCegarLoop]: Abstraction has 5252 states and 8929 transitions. [2024-11-22 01:53:46,712 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-22 01:53:46,712 INFO L276 IsEmpty]: Start isEmpty. Operand 5252 states and 8929 transitions. [2024-11-22 01:53:46,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2024-11-22 01:53:46,735 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:53:46,736 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, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 01:53:46,736 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-22 01:53:46,736 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:53:46,736 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:53:46,737 INFO L85 PathProgramCache]: Analyzing trace with hash -1619920320, now seen corresponding path program 1 times [2024-11-22 01:53:46,737 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:53:46,737 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [963771362] [2024-11-22 01:53:46,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:53:46,737 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:53:46,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:53:46,809 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-22 01:53:46,810 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:53:46,810 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [963771362] [2024-11-22 01:53:46,810 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [963771362] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:53:46,810 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 01:53:46,810 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 01:53:46,810 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1163281792] [2024-11-22 01:53:46,810 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:53:46,811 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 01:53:46,811 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:53:46,811 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 01:53:46,811 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 01:53:46,812 INFO L87 Difference]: Start difference. First operand 5252 states and 8929 transitions. Second operand has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-22 01:53:47,077 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:53:47,078 INFO L93 Difference]: Finished difference Result 12939 states and 22134 transitions. [2024-11-22 01:53:47,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 01:53:47,079 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 137 [2024-11-22 01:53:47,079 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:53:47,137 INFO L225 Difference]: With dead ends: 12939 [2024-11-22 01:53:47,138 INFO L226 Difference]: Without dead ends: 8748 [2024-11-22 01:53:47,161 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 01:53:47,162 INFO L432 NwaCegarLoop]: 406 mSDtfsCounter, 87 mSDsluCounter, 398 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 102 SdHoareTripleChecker+Valid, 804 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 01:53:47,162 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [102 Valid, 804 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 01:53:47,172 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8748 states. [2024-11-22 01:53:47,707 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8748 to 8740. [2024-11-22 01:53:47,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8740 states, 7162 states have (on average 1.6121195196872382) internal successors, (11546), 7166 states have internal predecessors, (11546), 1556 states have call successors, (1556), 18 states have call predecessors, (1556), 21 states have return successors, (1751), 1555 states have call predecessors, (1751), 1555 states have call successors, (1751) [2024-11-22 01:53:47,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8740 states to 8740 states and 14853 transitions. [2024-11-22 01:53:47,783 INFO L78 Accepts]: Start accepts. Automaton has 8740 states and 14853 transitions. Word has length 137 [2024-11-22 01:53:47,784 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:53:47,784 INFO L471 AbstractCegarLoop]: Abstraction has 8740 states and 14853 transitions. [2024-11-22 01:53:47,784 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-22 01:53:47,785 INFO L276 IsEmpty]: Start isEmpty. Operand 8740 states and 14853 transitions. [2024-11-22 01:53:47,817 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2024-11-22 01:53:47,817 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:53:47,818 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 01:53:47,818 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-22 01:53:47,818 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:53:47,818 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:53:47,819 INFO L85 PathProgramCache]: Analyzing trace with hash 50110336, now seen corresponding path program 1 times [2024-11-22 01:53:47,819 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:53:47,819 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [35114818] [2024-11-22 01:53:47,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:53:47,819 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:53:47,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:53:47,881 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-22 01:53:47,882 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:53:47,882 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [35114818] [2024-11-22 01:53:47,882 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [35114818] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:53:47,882 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 01:53:47,882 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 01:53:47,882 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1883497085] [2024-11-22 01:53:47,883 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:53:47,883 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 01:53:47,883 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:53:47,884 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 01:53:47,884 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 01:53:47,884 INFO L87 Difference]: Start difference. First operand 8740 states and 14853 transitions. Second operand has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-22 01:53:48,384 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:53:48,385 INFO L93 Difference]: Finished difference Result 22598 states and 38559 transitions. [2024-11-22 01:53:48,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 01:53:48,385 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 138 [2024-11-22 01:53:48,386 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:53:48,458 INFO L225 Difference]: With dead ends: 22598 [2024-11-22 01:53:48,459 INFO L226 Difference]: Without dead ends: 15341 [2024-11-22 01:53:48,490 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 01:53:48,491 INFO L432 NwaCegarLoop]: 416 mSDtfsCounter, 85 mSDsluCounter, 402 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 100 SdHoareTripleChecker+Valid, 818 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 01:53:48,491 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [100 Valid, 818 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 01:53:48,507 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15341 states. [2024-11-22 01:53:49,132 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15341 to 15333. [2024-11-22 01:53:49,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15333 states, 12552 states have (on average 1.6022944550669216) internal successors, (20112), 12556 states have internal predecessors, (20112), 2759 states have call successors, (2759), 18 states have call predecessors, (2759), 21 states have return successors, (3098), 2758 states have call predecessors, (3098), 2758 states have call successors, (3098) [2024-11-22 01:53:49,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15333 states to 15333 states and 25969 transitions. [2024-11-22 01:53:49,234 INFO L78 Accepts]: Start accepts. Automaton has 15333 states and 25969 transitions. Word has length 138 [2024-11-22 01:53:49,236 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:53:49,236 INFO L471 AbstractCegarLoop]: Abstraction has 15333 states and 25969 transitions. [2024-11-22 01:53:49,237 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-22 01:53:49,237 INFO L276 IsEmpty]: Start isEmpty. Operand 15333 states and 25969 transitions. [2024-11-22 01:53:49,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2024-11-22 01:53:49,362 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:53:49,362 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 01:53:49,362 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-22 01:53:49,363 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:53:49,363 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:53:49,363 INFO L85 PathProgramCache]: Analyzing trace with hash 504662271, now seen corresponding path program 1 times [2024-11-22 01:53:49,363 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:53:49,363 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [154637881] [2024-11-22 01:53:49,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:53:49,364 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:53:49,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:53:49,422 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-22 01:53:49,423 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:53:49,423 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [154637881] [2024-11-22 01:53:49,423 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [154637881] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:53:49,423 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 01:53:49,423 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 01:53:49,423 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [574877065] [2024-11-22 01:53:49,423 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:53:49,424 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 01:53:49,425 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:53:49,425 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 01:53:49,425 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 01:53:49,426 INFO L87 Difference]: Start difference. First operand 15333 states and 25969 transitions. Second operand has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-22 01:53:50,253 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:53:50,253 INFO L93 Difference]: Finished difference Result 40554 states and 69002 transitions. [2024-11-22 01:53:50,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 01:53:50,254 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 139 [2024-11-22 01:53:50,255 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:53:50,421 INFO L225 Difference]: With dead ends: 40554 [2024-11-22 01:53:50,422 INFO L226 Difference]: Without dead ends: 27311 [2024-11-22 01:53:50,483 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 01:53:50,483 INFO L432 NwaCegarLoop]: 404 mSDtfsCounter, 83 mSDsluCounter, 398 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 98 SdHoareTripleChecker+Valid, 802 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 01:53:50,484 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [98 Valid, 802 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 01:53:50,515 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27311 states. [2024-11-22 01:53:51,420 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27311 to 27303. [2024-11-22 01:53:51,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27303 states, 22483 states have (on average 1.5976515589556555) internal successors, (35920), 22487 states have internal predecessors, (35920), 4798 states have call successors, (4798), 18 states have call predecessors, (4798), 21 states have return successors, (5411), 4797 states have call predecessors, (5411), 4797 states have call successors, (5411) [2024-11-22 01:53:51,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27303 states to 27303 states and 46129 transitions. [2024-11-22 01:53:51,567 INFO L78 Accepts]: Start accepts. Automaton has 27303 states and 46129 transitions. Word has length 139 [2024-11-22 01:53:51,567 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:53:51,568 INFO L471 AbstractCegarLoop]: Abstraction has 27303 states and 46129 transitions. [2024-11-22 01:53:51,568 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-22 01:53:51,568 INFO L276 IsEmpty]: Start isEmpty. Operand 27303 states and 46129 transitions. [2024-11-22 01:53:51,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2024-11-22 01:53:51,621 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:53:51,621 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 01:53:51,621 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-22 01:53:51,622 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:53:51,622 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:53:51,622 INFO L85 PathProgramCache]: Analyzing trace with hash -2065637442, now seen corresponding path program 1 times [2024-11-22 01:53:51,622 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:53:51,622 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1081889061] [2024-11-22 01:53:51,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:53:51,623 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:53:51,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:53:51,669 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-22 01:53:51,670 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:53:51,670 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1081889061] [2024-11-22 01:53:51,670 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1081889061] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:53:51,670 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 01:53:51,670 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 01:53:51,670 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [215926183] [2024-11-22 01:53:51,670 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:53:51,670 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 01:53:51,670 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:53:51,671 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 01:53:51,671 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 01:53:51,671 INFO L87 Difference]: Start difference. First operand 27303 states and 46129 transitions. Second operand has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-22 01:53:52,988 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:53:52,988 INFO L93 Difference]: Finished difference Result 74341 states and 126069 transitions. [2024-11-22 01:53:52,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 01:53:52,990 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 140 [2024-11-22 01:53:52,990 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:53:53,490 INFO L225 Difference]: With dead ends: 74341 [2024-11-22 01:53:53,494 INFO L226 Difference]: Without dead ends: 49860 [2024-11-22 01:53:53,612 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 01:53:53,613 INFO L432 NwaCegarLoop]: 407 mSDtfsCounter, 81 mSDsluCounter, 398 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 805 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 01:53:53,613 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [96 Valid, 805 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 01:53:53,645 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49860 states. [2024-11-22 01:53:55,606 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49860 to 49852. [2024-11-22 01:53:55,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49852 states, 41317 states have (on average 1.5916208824454825) internal successors, (65761), 41321 states have internal predecessors, (65761), 8513 states have call successors, (8513), 18 states have call predecessors, (8513), 21 states have return successors, (9658), 8512 states have call predecessors, (9658), 8512 states have call successors, (9658) [2024-11-22 01:53:55,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49852 states to 49852 states and 83932 transitions. [2024-11-22 01:53:55,922 INFO L78 Accepts]: Start accepts. Automaton has 49852 states and 83932 transitions. Word has length 140 [2024-11-22 01:53:55,923 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:53:55,923 INFO L471 AbstractCegarLoop]: Abstraction has 49852 states and 83932 transitions. [2024-11-22 01:53:55,923 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-22 01:53:55,923 INFO L276 IsEmpty]: Start isEmpty. Operand 49852 states and 83932 transitions. [2024-11-22 01:53:55,987 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2024-11-22 01:53:55,988 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:53:55,988 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 01:53:55,988 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-22 01:53:55,989 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:53:55,989 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:53:55,989 INFO L85 PathProgramCache]: Analyzing trace with hash -1709492609, now seen corresponding path program 1 times [2024-11-22 01:53:55,989 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:53:55,989 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [599208847] [2024-11-22 01:53:55,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:53:55,989 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:53:56,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:53:56,051 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-22 01:53:56,051 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:53:56,051 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [599208847] [2024-11-22 01:53:56,051 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [599208847] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:53:56,051 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 01:53:56,052 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 01:53:56,052 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [91536071] [2024-11-22 01:53:56,052 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:53:56,052 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 01:53:56,052 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:53:56,053 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 01:53:56,055 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 01:53:56,055 INFO L87 Difference]: Start difference. First operand 49852 states and 83932 transitions. Second operand has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-22 01:53:58,474 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:53:58,474 INFO L93 Difference]: Finished difference Result 92827 states and 156631 transitions. [2024-11-22 01:53:58,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 01:53:58,475 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 141 [2024-11-22 01:53:58,475 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:53:58,895 INFO L225 Difference]: With dead ends: 92827 [2024-11-22 01:53:58,896 INFO L226 Difference]: Without dead ends: 92704 [2024-11-22 01:53:58,945 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 01:53:58,946 INFO L432 NwaCegarLoop]: 413 mSDtfsCounter, 76 mSDsluCounter, 403 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 90 SdHoareTripleChecker+Valid, 816 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 01:53:58,946 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [90 Valid, 816 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 01:53:59,032 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92704 states. [2024-11-22 01:54:02,506 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92704 to 92696. [2024-11-22 01:54:02,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 92696 states, 77362 states have (on average 1.5840722835500634) internal successors, (122547), 77366 states have internal predecessors, (122547), 15312 states have call successors, (15312), 18 states have call predecessors, (15312), 21 states have return successors, (17503), 15311 states have call predecessors, (17503), 15311 states have call successors, (17503) [2024-11-22 01:54:03,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92696 states to 92696 states and 155362 transitions. [2024-11-22 01:54:03,120 INFO L78 Accepts]: Start accepts. Automaton has 92696 states and 155362 transitions. Word has length 141 [2024-11-22 01:54:03,121 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:54:03,121 INFO L471 AbstractCegarLoop]: Abstraction has 92696 states and 155362 transitions. [2024-11-22 01:54:03,121 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-22 01:54:03,121 INFO L276 IsEmpty]: Start isEmpty. Operand 92696 states and 155362 transitions. [2024-11-22 01:54:03,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2024-11-22 01:54:03,195 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:54:03,196 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 01:54:03,196 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-22 01:54:03,196 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:54:03,196 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:54:03,197 INFO L85 PathProgramCache]: Analyzing trace with hash -1455791745, now seen corresponding path program 1 times [2024-11-22 01:54:03,197 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:54:03,197 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [388875251] [2024-11-22 01:54:03,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:54:03,197 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:54:03,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:54:03,391 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-22 01:54:03,392 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:54:03,392 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [388875251] [2024-11-22 01:54:03,392 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [388875251] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:54:03,392 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 01:54:03,392 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 01:54:03,393 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1651903701] [2024-11-22 01:54:03,393 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:54:03,394 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 01:54:03,394 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:54:03,395 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 01:54:03,395 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 01:54:03,395 INFO L87 Difference]: Start difference. First operand 92696 states and 155362 transitions. Second operand has 6 states, 6 states have (on average 16.5) internal successors, (99), 5 states have internal predecessors, (99), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (14), 3 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-22 01:54:06,143 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:54:06,144 INFO L93 Difference]: Finished difference Result 92928 states and 155679 transitions. [2024-11-22 01:54:06,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-22 01:54:06,145 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 16.5) internal successors, (99), 5 states have internal predecessors, (99), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (14), 3 states have call predecessors, (14), 2 states have call successors, (14) Word has length 142 [2024-11-22 01:54:06,145 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:54:06,643 INFO L225 Difference]: With dead ends: 92928 [2024-11-22 01:54:06,644 INFO L226 Difference]: Without dead ends: 92815 [2024-11-22 01:54:06,713 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-22 01:54:06,715 INFO L432 NwaCegarLoop]: 411 mSDtfsCounter, 336 mSDsluCounter, 1301 mSDsCounter, 0 mSdLazyCounter, 99 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 337 SdHoareTripleChecker+Valid, 1712 SdHoareTripleChecker+Invalid, 100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 99 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-22 01:54:06,716 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [337 Valid, 1712 Invalid, 100 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 99 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-22 01:54:06,795 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92815 states. [2024-11-22 01:54:10,814 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92815 to 92811. [2024-11-22 01:54:10,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 92811 states, 77455 states have (on average 1.58390032922342) internal successors, (122681), 77459 states have internal predecessors, (122681), 15323 states have call successors, (15323), 27 states have call predecessors, (15323), 32 states have return successors, (17516), 15324 states have call predecessors, (17516), 15321 states have call successors, (17516) [2024-11-22 01:54:11,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92811 states to 92811 states and 155520 transitions. [2024-11-22 01:54:11,209 INFO L78 Accepts]: Start accepts. Automaton has 92811 states and 155520 transitions. Word has length 142 [2024-11-22 01:54:11,210 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:54:11,210 INFO L471 AbstractCegarLoop]: Abstraction has 92811 states and 155520 transitions. [2024-11-22 01:54:11,210 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 16.5) internal successors, (99), 5 states have internal predecessors, (99), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (14), 3 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-22 01:54:11,210 INFO L276 IsEmpty]: Start isEmpty. Operand 92811 states and 155520 transitions. [2024-11-22 01:54:11,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2024-11-22 01:54:11,272 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:54:11,272 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 01:54:11,272 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-22 01:54:11,272 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:54:11,272 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:54:11,272 INFO L85 PathProgramCache]: Analyzing trace with hash -1176085473, now seen corresponding path program 1 times [2024-11-22 01:54:11,273 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:54:11,273 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1638035999] [2024-11-22 01:54:11,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:54:11,273 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:54:11,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:54:11,683 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-22 01:54:11,683 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:54:11,683 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1638035999] [2024-11-22 01:54:11,683 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1638035999] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:54:11,684 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 01:54:11,684 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-22 01:54:11,684 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1771638922] [2024-11-22 01:54:11,684 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:54:11,684 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-22 01:54:11,684 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:54:11,685 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-22 01:54:11,685 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=133, Unknown=0, NotChecked=0, Total=156 [2024-11-22 01:54:11,685 INFO L87 Difference]: Start difference. First operand 92811 states and 155520 transitions. Second operand has 13 states, 11 states have (on average 9.090909090909092) internal successors, (100), 12 states have internal predecessors, (100), 8 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (14), 6 states have call predecessors, (14), 7 states have call successors, (14) [2024-11-22 01:54:14,614 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:54:14,614 INFO L93 Difference]: Finished difference Result 93116 states and 155941 transitions. [2024-11-22 01:54:14,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-22 01:54:14,615 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 11 states have (on average 9.090909090909092) internal successors, (100), 12 states have internal predecessors, (100), 8 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (14), 6 states have call predecessors, (14), 7 states have call successors, (14) Word has length 143 [2024-11-22 01:54:14,615 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:54:14,967 INFO L225 Difference]: With dead ends: 93116 [2024-11-22 01:54:14,967 INFO L226 Difference]: Without dead ends: 92868 [2024-11-22 01:54:15,015 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=295, Unknown=0, NotChecked=0, Total=342 [2024-11-22 01:54:15,016 INFO L432 NwaCegarLoop]: 393 mSDtfsCounter, 121 mSDsluCounter, 4307 mSDsCounter, 0 mSdLazyCounter, 166 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 122 SdHoareTripleChecker+Valid, 4700 SdHoareTripleChecker+Invalid, 182 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 166 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 01:54:15,017 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [122 Valid, 4700 Invalid, 182 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 166 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 01:54:15,073 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92868 states. [2024-11-22 01:54:18,373 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92868 to 92864. [2024-11-22 01:54:18,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 92864 states, 77496 states have (on average 1.5837849695468154) internal successors, (122737), 77502 states have internal predecessors, (122737), 15334 states have call successors, (15334), 28 states have call predecessors, (15334), 33 states have return successors, (17527), 15333 states have call predecessors, (17527), 15332 states have call successors, (17527) [2024-11-22 01:54:18,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92864 states to 92864 states and 155598 transitions. [2024-11-22 01:54:18,919 INFO L78 Accepts]: Start accepts. Automaton has 92864 states and 155598 transitions. Word has length 143 [2024-11-22 01:54:18,926 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:54:18,926 INFO L471 AbstractCegarLoop]: Abstraction has 92864 states and 155598 transitions. [2024-11-22 01:54:18,926 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 11 states have (on average 9.090909090909092) internal successors, (100), 12 states have internal predecessors, (100), 8 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (14), 6 states have call predecessors, (14), 7 states have call successors, (14) [2024-11-22 01:54:18,926 INFO L276 IsEmpty]: Start isEmpty. Operand 92864 states and 155598 transitions. [2024-11-22 01:54:19,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2024-11-22 01:54:19,127 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:54:19,128 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 01:54:19,128 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-22 01:54:19,128 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:54:19,129 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:54:19,129 INFO L85 PathProgramCache]: Analyzing trace with hash 1650032327, now seen corresponding path program 1 times [2024-11-22 01:54:19,129 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:54:19,129 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [840333262] [2024-11-22 01:54:19,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:54:19,130 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:54:19,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:54:20,142 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2024-11-22 01:54:20,142 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:54:20,142 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [840333262] [2024-11-22 01:54:20,142 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [840333262] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:54:20,143 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 01:54:20,143 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 01:54:20,143 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1641385737] [2024-11-22 01:54:20,143 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:54:20,143 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 01:54:20,143 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:54:20,144 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 01:54:20,144 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 01:54:20,144 INFO L87 Difference]: Start difference. First operand 92864 states and 155598 transitions. Second operand has 6 states, 6 states have (on average 18.5) internal successors, (111), 5 states have internal predecessors, (111), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (17), 3 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-22 01:54:22,295 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:54:22,295 INFO L93 Difference]: Finished difference Result 93405 states and 156342 transitions. [2024-11-22 01:54:22,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-22 01:54:22,296 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 18.5) internal successors, (111), 5 states have internal predecessors, (111), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (17), 3 states have call predecessors, (17), 2 states have call successors, (17) Word has length 167 [2024-11-22 01:54:22,297 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:54:22,704 INFO L225 Difference]: With dead ends: 93405 [2024-11-22 01:54:22,704 INFO L226 Difference]: Without dead ends: 93151 [2024-11-22 01:54:22,749 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-22 01:54:22,750 INFO L432 NwaCegarLoop]: 528 mSDtfsCounter, 340 mSDsluCounter, 1639 mSDsCounter, 0 mSdLazyCounter, 109 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 341 SdHoareTripleChecker+Valid, 2167 SdHoareTripleChecker+Invalid, 110 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 109 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-22 01:54:22,750 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [341 Valid, 2167 Invalid, 110 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 109 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-22 01:54:22,825 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93151 states. [2024-11-22 01:54:26,793 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93151 to 93143. [2024-11-22 01:54:26,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93143 states, 77718 states have (on average 1.583288298721017) internal successors, (123050), 77727 states have internal predecessors, (123050), 15367 states have call successors, (15367), 46 states have call predecessors, (15367), 57 states have return successors, (17566), 15369 states have call predecessors, (17566), 15363 states have call successors, (17566) [2024-11-22 01:54:27,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93143 states to 93143 states and 155983 transitions. [2024-11-22 01:54:27,341 INFO L78 Accepts]: Start accepts. Automaton has 93143 states and 155983 transitions. Word has length 167 [2024-11-22 01:54:27,342 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:54:27,342 INFO L471 AbstractCegarLoop]: Abstraction has 93143 states and 155983 transitions. [2024-11-22 01:54:27,343 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 18.5) internal successors, (111), 5 states have internal predecessors, (111), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (17), 3 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-22 01:54:27,343 INFO L276 IsEmpty]: Start isEmpty. Operand 93143 states and 155983 transitions. [2024-11-22 01:54:27,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2024-11-22 01:54:27,507 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:54:27,508 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 01:54:27,508 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-22 01:54:27,508 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:54:27,508 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:54:27,508 INFO L85 PathProgramCache]: Analyzing trace with hash -987910260, now seen corresponding path program 1 times [2024-11-22 01:54:27,508 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:54:27,509 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1323141875] [2024-11-22 01:54:27,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:54:27,509 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:54:27,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:54:27,861 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2024-11-22 01:54:27,862 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:54:27,862 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1323141875] [2024-11-22 01:54:27,863 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1323141875] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:54:27,863 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 01:54:27,863 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-22 01:54:27,863 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2016098973] [2024-11-22 01:54:27,863 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:54:27,864 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-22 01:54:27,864 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:54:27,864 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-22 01:54:27,865 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2024-11-22 01:54:27,865 INFO L87 Difference]: Start difference. First operand 93143 states and 155983 transitions. Second operand has 12 states, 11 states have (on average 10.181818181818182) internal successors, (112), 11 states have internal predecessors, (112), 7 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (17), 6 states have call predecessors, (17), 6 states have call successors, (17) [2024-11-22 01:54:30,849 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:54:30,849 INFO L93 Difference]: Finished difference Result 93561 states and 156550 transitions. [2024-11-22 01:54:30,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-22 01:54:30,850 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 10.181818181818182) internal successors, (112), 11 states have internal predecessors, (112), 7 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (17), 6 states have call predecessors, (17), 6 states have call successors, (17) Word has length 168 [2024-11-22 01:54:30,851 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:54:31,311 INFO L225 Difference]: With dead ends: 93561 [2024-11-22 01:54:31,311 INFO L226 Difference]: Without dead ends: 93043 [2024-11-22 01:54:31,388 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=231, Unknown=0, NotChecked=0, Total=272 [2024-11-22 01:54:31,388 INFO L432 NwaCegarLoop]: 393 mSDtfsCounter, 110 mSDsluCounter, 3906 mSDsCounter, 0 mSdLazyCounter, 151 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 114 SdHoareTripleChecker+Valid, 4299 SdHoareTripleChecker+Invalid, 162 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 151 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 01:54:31,389 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [114 Valid, 4299 Invalid, 162 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 151 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 01:54:31,467 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93043 states. [2024-11-22 01:54:35,101 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93043 to 93036. [2024-11-22 01:54:35,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93036 states, 77632 states have (on average 1.583483615004122) internal successors, (122929), 77643 states have internal predecessors, (122929), 15353 states have call successors, (15353), 40 states have call predecessors, (15353), 50 states have return successors, (17550), 15352 states have call predecessors, (17550), 15350 states have call successors, (17550) [2024-11-22 01:54:35,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93036 states to 93036 states and 155832 transitions. [2024-11-22 01:54:35,874 INFO L78 Accepts]: Start accepts. Automaton has 93036 states and 155832 transitions. Word has length 168 [2024-11-22 01:54:35,874 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:54:35,875 INFO L471 AbstractCegarLoop]: Abstraction has 93036 states and 155832 transitions. [2024-11-22 01:54:35,878 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 10.181818181818182) internal successors, (112), 11 states have internal predecessors, (112), 7 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (17), 6 states have call predecessors, (17), 6 states have call successors, (17) [2024-11-22 01:54:35,878 INFO L276 IsEmpty]: Start isEmpty. Operand 93036 states and 155832 transitions. [2024-11-22 01:54:36,000 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2024-11-22 01:54:36,000 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:54:36,000 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 01:54:36,000 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-11-22 01:54:36,001 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:54:36,001 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:54:36,001 INFO L85 PathProgramCache]: Analyzing trace with hash 1946300861, now seen corresponding path program 1 times [2024-11-22 01:54:36,001 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:54:36,001 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [246118505] [2024-11-22 01:54:36,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:54:36,001 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:54:36,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:54:36,506 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 3 proven. 8 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-22 01:54:36,507 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:54:36,507 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [246118505] [2024-11-22 01:54:36,507 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [246118505] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 01:54:36,507 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1254598521] [2024-11-22 01:54:36,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:54:36,507 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 01:54:36,508 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 01:54:36,512 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) [2024-11-22 01:54:36,514 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-22 01:54:36,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:54:36,842 INFO L255 TraceCheckSpWp]: Trace formula consists of 1199 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-11-22 01:54:36,846 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 01:54:37,108 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 29 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-22 01:54:37,108 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 01:54:37,108 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1254598521] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:54:37,108 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 01:54:37,108 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [15] total 25 [2024-11-22 01:54:37,109 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [871537582] [2024-11-22 01:54:37,109 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:54:37,109 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-22 01:54:37,109 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:54:37,110 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-22 01:54:37,110 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=542, Unknown=0, NotChecked=0, Total=600 [2024-11-22 01:54:37,110 INFO L87 Difference]: Start difference. First operand 93036 states and 155832 transitions. Second operand has 12 states, 12 states have (on average 10.75) internal successors, (129), 10 states have internal predecessors, (129), 6 states have call successors, (19), 5 states have call predecessors, (19), 6 states have return successors, (17), 7 states have call predecessors, (17), 6 states have call successors, (17) [2024-11-22 01:54:39,491 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:54:39,491 INFO L93 Difference]: Finished difference Result 93967 states and 157128 transitions. [2024-11-22 01:54:39,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-22 01:54:39,492 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 10.75) internal successors, (129), 10 states have internal predecessors, (129), 6 states have call successors, (19), 5 states have call predecessors, (19), 6 states have return successors, (17), 7 states have call predecessors, (17), 6 states have call successors, (17) Word has length 171 [2024-11-22 01:54:39,492 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:54:39,844 INFO L225 Difference]: With dead ends: 93967 [2024-11-22 01:54:39,845 INFO L226 Difference]: Without dead ends: 93635 [2024-11-22 01:54:39,895 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 198 GetRequests, 163 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 164 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=152, Invalid=1180, Unknown=0, NotChecked=0, Total=1332 [2024-11-22 01:54:39,896 INFO L432 NwaCegarLoop]: 402 mSDtfsCounter, 652 mSDsluCounter, 3322 mSDsCounter, 0 mSdLazyCounter, 322 mSolverCounterSat, 66 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 656 SdHoareTripleChecker+Valid, 3724 SdHoareTripleChecker+Invalid, 388 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 66 IncrementalHoareTripleChecker+Valid, 322 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-22 01:54:39,896 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [656 Valid, 3724 Invalid, 388 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [66 Valid, 322 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-22 01:54:39,973 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93635 states.