./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/email_spec9_product15.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version fca748b1 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/email_spec9_product15.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 3a5e24a2ecd4f1b82ac6c9f3672db1eec2c6845bb52ab38fa9dd83ecce424f6f --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dd.update-z3-fca748b-m [2024-11-19 22:02:40,884 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-19 22:02:40,960 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-19 22:02:40,964 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-19 22:02:40,964 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-19 22:02:40,979 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-19 22:02:40,979 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-19 22:02:40,980 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-19 22:02:40,980 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-19 22:02:40,980 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-19 22:02:40,981 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-19 22:02:40,981 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-19 22:02:40,981 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-19 22:02:40,982 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-19 22:02:40,982 INFO L153 SettingsManager]: * Use SBE=true [2024-11-19 22:02:40,983 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-19 22:02:40,983 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-19 22:02:40,984 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-19 22:02:40,984 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-19 22:02:40,986 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-19 22:02:40,986 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-19 22:02:40,988 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-19 22:02:40,988 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-19 22:02:40,988 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-19 22:02:40,989 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-19 22:02:40,989 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-19 22:02:40,989 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-19 22:02:40,989 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-19 22:02:40,989 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-19 22:02:40,989 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-19 22:02:40,989 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-19 22:02:40,990 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-19 22:02:40,990 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 22:02:40,990 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-19 22:02:40,990 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-19 22:02:40,990 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-19 22:02:40,990 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-19 22:02:40,990 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-19 22:02:40,991 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-19 22:02:40,991 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-19 22:02:40,991 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-19 22:02:40,992 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-19 22:02:40,992 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3a5e24a2ecd4f1b82ac6c9f3672db1eec2c6845bb52ab38fa9dd83ecce424f6f [2024-11-19 22:02:41,201 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-19 22:02:41,234 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-19 22:02:41,238 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-19 22:02:41,239 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-19 22:02:41,240 INFO L274 PluginConnector]: CDTParser initialized [2024-11-19 22:02:41,241 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/email_spec9_product15.cil.c [2024-11-19 22:02:42,492 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-19 22:02:42,741 INFO L384 CDTParser]: Found 1 translation units. [2024-11-19 22:02:42,742 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/email_spec9_product15.cil.c [2024-11-19 22:02:42,769 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bc3e599c3/04f5265a69f74f89935f69a7a23c4002/FLAGaafb0d467 [2024-11-19 22:02:42,783 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bc3e599c3/04f5265a69f74f89935f69a7a23c4002 [2024-11-19 22:02:42,785 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-19 22:02:42,787 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-19 22:02:42,793 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-19 22:02:42,793 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-19 22:02:42,798 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-19 22:02:42,798 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 10:02:42" (1/1) ... [2024-11-19 22:02:42,799 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@48318a95 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:02:42, skipping insertion in model container [2024-11-19 22:02:42,801 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 10:02:42" (1/1) ... [2024-11-19 22:02:42,857 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-19 22:02:43,292 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_spec9_product15.cil.c[51080,51093] [2024-11-19 22:02:43,352 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 22:02:43,368 INFO L200 MainTranslator]: Completed pre-run [2024-11-19 22:02:43,376 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [48] [2024-11-19 22:02:43,377 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"EmailLib.i","") [97] [2024-11-19 22:02:43,377 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [509] [2024-11-19 22:02:43,377 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Util.i","") [734] [2024-11-19 22:02:43,378 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [752] [2024-11-19 22:02:43,378 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"ClientLib.i","") [1118] [2024-11-19 22:02:43,378 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [2198] [2024-11-19 22:02:43,378 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Client.i","") [2207] [2024-11-19 22:02:43,379 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"EncryptForward_spec.i","") [2479] [2024-11-19 22:02:43,379 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [2521] [2024-11-19 22:02:43,379 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Email.i","") [2796] [2024-11-19 22:02:43,424 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_spec9_product15.cil.c[51080,51093] [2024-11-19 22:02:43,434 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 22:02:43,460 INFO L204 MainTranslator]: Completed translation [2024-11-19 22:02:43,461 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:02:43 WrapperNode [2024-11-19 22:02:43,461 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-19 22:02:43,462 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-19 22:02:43,462 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-19 22:02:43,462 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-19 22:02:43,468 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:02:43" (1/1) ... [2024-11-19 22:02:43,491 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:02:43" (1/1) ... [2024-11-19 22:02:43,525 INFO L138 Inliner]: procedures = 126, calls = 185, calls flagged for inlining = 55, calls inlined = 46, statements flattened = 892 [2024-11-19 22:02:43,525 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-19 22:02:43,527 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-19 22:02:43,527 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-19 22:02:43,527 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-19 22:02:43,536 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:02:43" (1/1) ... [2024-11-19 22:02:43,536 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:02:43" (1/1) ... [2024-11-19 22:02:43,540 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:02:43" (1/1) ... [2024-11-19 22:02:43,558 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]. [2024-11-19 22:02:43,558 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:02:43" (1/1) ... [2024-11-19 22:02:43,558 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:02:43" (1/1) ... [2024-11-19 22:02:43,569 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:02:43" (1/1) ... [2024-11-19 22:02:43,585 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:02:43" (1/1) ... [2024-11-19 22:02:43,592 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:02:43" (1/1) ... [2024-11-19 22:02:43,598 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:02:43" (1/1) ... [2024-11-19 22:02:43,610 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-19 22:02:43,611 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-19 22:02:43,611 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-19 22:02:43,611 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-19 22:02:43,612 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:02:43" (1/1) ... [2024-11-19 22:02:43,621 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 22:02:43,633 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 22:02:43,653 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) [2024-11-19 22:02:43,658 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 [2024-11-19 22:02:43,696 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2024-11-19 22:02:43,697 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2024-11-19 22:02:43,697 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2024-11-19 22:02:43,697 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2024-11-19 22:02:43,697 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2024-11-19 22:02:43,697 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2024-11-19 22:02:43,697 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2024-11-19 22:02:43,697 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2024-11-19 22:02:43,698 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2024-11-19 22:02:43,698 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2024-11-19 22:02:43,698 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2024-11-19 22:02:43,698 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2024-11-19 22:02:43,698 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2024-11-19 22:02:43,698 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2024-11-19 22:02:43,699 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2024-11-19 22:02:43,699 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2024-11-19 22:02:43,699 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2024-11-19 22:02:43,699 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2024-11-19 22:02:43,701 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-19 22:02:43,701 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2024-11-19 22:02:43,701 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2024-11-19 22:02:43,701 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2024-11-19 22:02:43,701 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2024-11-19 22:02:43,701 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2024-11-19 22:02:43,702 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2024-11-19 22:02:43,702 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2024-11-19 22:02:43,702 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2024-11-19 22:02:43,702 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2024-11-19 22:02:43,702 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2024-11-19 22:02:43,702 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2024-11-19 22:02:43,702 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2024-11-19 22:02:43,703 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2024-11-19 22:02:43,703 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2024-11-19 22:02:43,703 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-19 22:02:43,703 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-19 22:02:43,703 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-19 22:02:43,703 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-19 22:02:43,703 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2024-11-19 22:02:43,703 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2024-11-19 22:02:43,704 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-19 22:02:43,704 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-19 22:02:43,870 INFO L238 CfgBuilder]: Building ICFG [2024-11-19 22:02:43,872 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-19 22:02:44,518 INFO L? ?]: Removed 376 outVars from TransFormulas that were not future-live. [2024-11-19 22:02:44,518 INFO L287 CfgBuilder]: Performing block encoding [2024-11-19 22:02:44,542 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-19 22:02:44,542 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-19 22:02:44,542 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 10:02:44 BoogieIcfgContainer [2024-11-19 22:02:44,542 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-19 22:02:44,544 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-19 22:02:44,544 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-19 22:02:44,548 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-19 22:02:44,548 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 10:02:42" (1/3) ... [2024-11-19 22:02:44,549 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f9a796f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 10:02:44, skipping insertion in model container [2024-11-19 22:02:44,549 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:02:43" (2/3) ... [2024-11-19 22:02:44,549 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f9a796f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 10:02:44, skipping insertion in model container [2024-11-19 22:02:44,549 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 10:02:44" (3/3) ... [2024-11-19 22:02:44,550 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec9_product15.cil.c [2024-11-19 22:02:44,563 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-19 22:02:44,563 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-19 22:02:44,633 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-19 22:02:44,639 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;@41cef689, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-19 22:02:44,640 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-19 22:02:44,646 INFO L276 IsEmpty]: Start isEmpty. Operand has 287 states, 226 states have (on average 1.5442477876106195) internal successors, (349), 230 states have internal predecessors, (349), 42 states have call successors, (42), 17 states have call predecessors, (42), 17 states have return successors, (42), 42 states have call predecessors, (42), 42 states have call successors, (42) [2024-11-19 22:02:44,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2024-11-19 22:02:44,659 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 22:02:44,661 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] [2024-11-19 22:02:44,661 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 22:02:44,666 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 22:02:44,667 INFO L85 PathProgramCache]: Analyzing trace with hash -424898417, now seen corresponding path program 1 times [2024-11-19 22:02:44,674 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 22:02:44,674 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2007368782] [2024-11-19 22:02:44,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 22:02:44,675 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 22:02:44,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:02:45,130 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-19 22:02:45,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:02:45,148 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-19 22:02:45,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:02:45,153 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-19 22:02:45,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:02:45,176 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-19 22:02:45,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:02:45,181 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-19 22:02:45,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:02:45,185 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-19 22:02:45,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:02:45,197 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-19 22:02:45,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:02:45,210 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-11-19 22:02:45,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:02:45,213 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-19 22:02:45,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:02:45,216 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-11-19 22:02:45,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:02:45,218 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-11-19 22:02:45,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:02:45,222 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-11-19 22:02:45,223 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 22:02:45,224 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2007368782] [2024-11-19 22:02:45,224 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2007368782] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 22:02:45,225 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [740156149] [2024-11-19 22:02:45,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 22:02:45,225 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 22:02:45,225 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 22:02:45,227 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) [2024-11-19 22:02:45,229 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-19 22:02:45,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:02:45,447 INFO L255 TraceCheckSpWp]: Trace formula consists of 919 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-19 22:02:45,457 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 22:02:45,476 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-19 22:02:45,478 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 22:02:45,479 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [740156149] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 22:02:45,479 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 22:02:45,479 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [9] total 9 [2024-11-19 22:02:45,481 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [108536342] [2024-11-19 22:02:45,482 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 22:02:45,486 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-19 22:02:45,487 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 22:02:45,509 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-19 22:02:45,509 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-19 22:02:45,513 INFO L87 Difference]: Start difference. First operand has 287 states, 226 states have (on average 1.5442477876106195) internal successors, (349), 230 states have internal predecessors, (349), 42 states have call successors, (42), 17 states have call predecessors, (42), 17 states have return successors, (42), 42 states have call predecessors, (42), 42 states have call successors, (42) Second operand has 2 states, 2 states have (on average 25.0) internal successors, (50), 2 states have internal predecessors, (50), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-19 22:02:45,563 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 22:02:45,567 INFO L93 Difference]: Finished difference Result 420 states and 620 transitions. [2024-11-19 22:02:45,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-19 22:02:45,570 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 25.0) internal successors, (50), 2 states have internal predecessors, (50), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 89 [2024-11-19 22:02:45,572 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 22:02:45,587 INFO L225 Difference]: With dead ends: 420 [2024-11-19 22:02:45,587 INFO L226 Difference]: Without dead ends: 280 [2024-11-19 22:02:45,592 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 114 GetRequests, 107 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-19 22:02:45,596 INFO L432 NwaCegarLoop]: 429 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, 429 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 [2024-11-19 22:02:45,597 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 429 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 22:02:45,613 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 280 states. [2024-11-19 22:02:45,650 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 280 to 280. [2024-11-19 22:02:45,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 280 states, 220 states have (on average 1.5363636363636364) internal successors, (338), 223 states have internal predecessors, (338), 42 states have call successors, (42), 17 states have call predecessors, (42), 17 states have return successors, (41), 41 states have call predecessors, (41), 41 states have call successors, (41) [2024-11-19 22:02:45,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 280 states to 280 states and 421 transitions. [2024-11-19 22:02:45,662 INFO L78 Accepts]: Start accepts. Automaton has 280 states and 421 transitions. Word has length 89 [2024-11-19 22:02:45,663 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 22:02:45,663 INFO L471 AbstractCegarLoop]: Abstraction has 280 states and 421 transitions. [2024-11-19 22:02:45,663 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 25.0) internal successors, (50), 2 states have internal predecessors, (50), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-19 22:02:45,664 INFO L276 IsEmpty]: Start isEmpty. Operand 280 states and 421 transitions. [2024-11-19 22:02:45,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-11-19 22:02:45,668 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 22:02:45,668 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] [2024-11-19 22:02:45,679 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-19 22:02:45,868 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 [2024-11-19 22:02:45,869 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 22:02:45,870 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 22:02:45,870 INFO L85 PathProgramCache]: Analyzing trace with hash 1235825051, now seen corresponding path program 1 times [2024-11-19 22:02:45,870 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 22:02:45,870 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1639005488] [2024-11-19 22:02:45,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 22:02:45,871 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 22:02:45,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:02:46,076 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-19 22:02:46,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:02:46,087 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-19 22:02:46,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:02:46,091 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-19 22:02:46,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:02:46,115 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-19 22:02:46,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:02:46,119 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-19 22:02:46,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:02:46,124 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-19 22:02:46,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:02:46,138 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-19 22:02:46,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:02:46,156 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-19 22:02:46,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:02:46,158 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-11-19 22:02:46,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:02:46,162 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-19 22:02:46,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:02:46,167 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-19 22:02:46,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:02:46,174 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-11-19 22:02:46,174 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 22:02:46,174 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1639005488] [2024-11-19 22:02:46,175 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1639005488] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 22:02:46,175 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [487550552] [2024-11-19 22:02:46,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 22:02:46,175 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 22:02:46,175 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 22:02:46,177 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) [2024-11-19 22:02:46,178 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-19 22:02:46,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:02:46,378 INFO L255 TraceCheckSpWp]: Trace formula consists of 920 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-19 22:02:46,381 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 22:02:46,411 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-19 22:02:46,411 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 22:02:46,411 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [487550552] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 22:02:46,411 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 22:02:46,411 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2024-11-19 22:02:46,411 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [64966690] [2024-11-19 22:02:46,412 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 22:02:46,412 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 22:02:46,412 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 22:02:46,415 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 22:02:46,415 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-11-19 22:02:46,415 INFO L87 Difference]: Start difference. First operand 280 states and 421 transitions. Second operand has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-19 22:02:46,454 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 22:02:46,455 INFO L93 Difference]: Finished difference Result 410 states and 601 transitions. [2024-11-19 22:02:46,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 22:02:46,455 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 90 [2024-11-19 22:02:46,455 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 22:02:46,458 INFO L225 Difference]: With dead ends: 410 [2024-11-19 22:02:46,458 INFO L226 Difference]: Without dead ends: 283 [2024-11-19 22:02:46,459 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 107 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-11-19 22:02:46,460 INFO L432 NwaCegarLoop]: 419 mSDtfsCounter, 1 mSDsluCounter, 417 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 836 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 [2024-11-19 22:02:46,461 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 836 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 22:02:46,462 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 283 states. [2024-11-19 22:02:46,477 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 283 to 282. [2024-11-19 22:02:46,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 282 states, 222 states have (on average 1.5315315315315314) internal successors, (340), 225 states have internal predecessors, (340), 42 states have call successors, (42), 17 states have call predecessors, (42), 17 states have return successors, (41), 41 states have call predecessors, (41), 41 states have call successors, (41) [2024-11-19 22:02:46,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 282 states to 282 states and 423 transitions. [2024-11-19 22:02:46,480 INFO L78 Accepts]: Start accepts. Automaton has 282 states and 423 transitions. Word has length 90 [2024-11-19 22:02:46,480 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 22:02:46,480 INFO L471 AbstractCegarLoop]: Abstraction has 282 states and 423 transitions. [2024-11-19 22:02:46,480 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-19 22:02:46,481 INFO L276 IsEmpty]: Start isEmpty. Operand 282 states and 423 transitions. [2024-11-19 22:02:46,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2024-11-19 22:02:46,483 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 22:02:46,483 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] [2024-11-19 22:02:46,490 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-19 22:02:46,684 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 [2024-11-19 22:02:46,684 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 22:02:46,685 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 22:02:46,685 INFO L85 PathProgramCache]: Analyzing trace with hash 1363663514, now seen corresponding path program 1 times [2024-11-19 22:02:46,685 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 22:02:46,685 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [202854865] [2024-11-19 22:02:46,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 22:02:46,685 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 22:02:46,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:02:46,823 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-19 22:02:46,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:02:46,835 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-19 22:02:46,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:02:46,838 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-19 22:02:46,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:02:46,857 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-19 22:02:46,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:02:46,862 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-19 22:02:46,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:02:46,865 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-19 22:02:46,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:02:46,877 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-11-19 22:02:46,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:02:46,888 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-11-19 22:02:46,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:02:46,891 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-19 22:02:46,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:02:46,894 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-19 22:02:46,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:02:46,897 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-11-19 22:02:46,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:02:46,900 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-19 22:02:46,900 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 22:02:46,900 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [202854865] [2024-11-19 22:02:46,901 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [202854865] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 22:02:46,901 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1392062433] [2024-11-19 22:02:46,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 22:02:46,901 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 22:02:46,901 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 22:02:46,904 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) [2024-11-19 22:02:46,905 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-19 22:02:47,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:02:47,113 INFO L255 TraceCheckSpWp]: Trace formula consists of 945 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-19 22:02:47,118 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 22:02:47,142 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-19 22:02:47,145 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 22:02:47,146 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1392062433] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 22:02:47,146 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 22:02:47,146 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2024-11-19 22:02:47,146 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1108917222] [2024-11-19 22:02:47,146 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 22:02:47,147 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 22:02:47,147 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 22:02:47,147 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 22:02:47,147 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-11-19 22:02:47,148 INFO L87 Difference]: Start difference. First operand 282 states and 423 transitions. Second operand has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-19 22:02:47,178 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 22:02:47,178 INFO L93 Difference]: Finished difference Result 594 states and 905 transitions. [2024-11-19 22:02:47,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 22:02:47,180 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 99 [2024-11-19 22:02:47,180 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 22:02:47,182 INFO L225 Difference]: With dead ends: 594 [2024-11-19 22:02:47,182 INFO L226 Difference]: Without dead ends: 339 [2024-11-19 22:02:47,183 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 124 GetRequests, 116 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-11-19 22:02:47,184 INFO L432 NwaCegarLoop]: 424 mSDtfsCounter, 107 mSDsluCounter, 372 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 122 SdHoareTripleChecker+Valid, 796 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 [2024-11-19 22:02:47,184 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [122 Valid, 796 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 22:02:47,185 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 339 states. [2024-11-19 22:02:47,199 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 339 to 331. [2024-11-19 22:02:47,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 331 states, 260 states have (on average 1.5461538461538462) internal successors, (402), 263 states have internal predecessors, (402), 53 states have call successors, (53), 17 states have call predecessors, (53), 17 states have return successors, (52), 52 states have call predecessors, (52), 52 states have call successors, (52) [2024-11-19 22:02:47,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 331 states to 331 states and 507 transitions. [2024-11-19 22:02:47,202 INFO L78 Accepts]: Start accepts. Automaton has 331 states and 507 transitions. Word has length 99 [2024-11-19 22:02:47,202 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 22:02:47,202 INFO L471 AbstractCegarLoop]: Abstraction has 331 states and 507 transitions. [2024-11-19 22:02:47,202 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-19 22:02:47,202 INFO L276 IsEmpty]: Start isEmpty. Operand 331 states and 507 transitions. [2024-11-19 22:02:47,205 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2024-11-19 22:02:47,205 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 22:02:47,205 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] [2024-11-19 22:02:47,213 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-19 22:02:47,405 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 [2024-11-19 22:02:47,406 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 22:02:47,406 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 22:02:47,407 INFO L85 PathProgramCache]: Analyzing trace with hash 1065487752, now seen corresponding path program 1 times [2024-11-19 22:02:47,407 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 22:02:47,407 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [57088408] [2024-11-19 22:02:47,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 22:02:47,407 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 22:02:47,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:02:47,514 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-19 22:02:47,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:02:47,525 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-19 22:02:47,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:02:47,528 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-19 22:02:47,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:02:47,548 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-19 22:02:47,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:02:47,551 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-19 22:02:47,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:02:47,553 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-19 22:02:47,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:02:47,563 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-11-19 22:02:47,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:02:47,573 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-11-19 22:02:47,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:02:47,576 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-19 22:02:47,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:02:47,578 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-11-19 22:02:47,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:02:47,580 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-11-19 22:02:47,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:02:47,584 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-19 22:02:47,584 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 22:02:47,584 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [57088408] [2024-11-19 22:02:47,584 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [57088408] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 22:02:47,584 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [44317047] [2024-11-19 22:02:47,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 22:02:47,585 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 22:02:47,585 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 22:02:47,587 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) [2024-11-19 22:02:47,587 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-19 22:02:47,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:02:47,779 INFO L255 TraceCheckSpWp]: Trace formula consists of 950 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-19 22:02:47,782 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 22:02:47,849 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-19 22:02:47,850 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 22:02:47,850 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [44317047] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 22:02:47,850 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 22:02:47,850 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 12 [2024-11-19 22:02:47,850 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [610249580] [2024-11-19 22:02:47,850 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 22:02:47,851 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 22:02:47,851 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 22:02:47,851 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 22:02:47,852 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2024-11-19 22:02:47,852 INFO L87 Difference]: Start difference. First operand 331 states and 507 transitions. Second operand has 5 states, 4 states have (on average 17.25) internal successors, (69), 5 states have internal predecessors, (69), 3 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (11), 2 states have call predecessors, (11), 3 states have call successors, (11) [2024-11-19 22:02:47,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 22:02:47,896 INFO L93 Difference]: Finished difference Result 653 states and 1004 transitions. [2024-11-19 22:02:47,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-19 22:02:47,897 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 17.25) internal successors, (69), 5 states have internal predecessors, (69), 3 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (11), 2 states have call predecessors, (11), 3 states have call successors, (11) Word has length 100 [2024-11-19 22:02:47,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 22:02:47,899 INFO L225 Difference]: With dead ends: 653 [2024-11-19 22:02:47,899 INFO L226 Difference]: Without dead ends: 333 [2024-11-19 22:02:47,900 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 125 GetRequests, 115 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2024-11-19 22:02:47,900 INFO L432 NwaCegarLoop]: 413 mSDtfsCounter, 2 mSDsluCounter, 1228 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 1641 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 [2024-11-19 22:02:47,901 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 1641 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 22:02:47,901 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 333 states. [2024-11-19 22:02:47,937 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 333 to 333. [2024-11-19 22:02:47,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 333 states, 261 states have (on average 1.5440613026819923) internal successors, (403), 265 states have internal predecessors, (403), 53 states have call successors, (53), 17 states have call predecessors, (53), 18 states have return successors, (54), 52 states have call predecessors, (54), 52 states have call successors, (54) [2024-11-19 22:02:47,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 333 states to 333 states and 510 transitions. [2024-11-19 22:02:47,942 INFO L78 Accepts]: Start accepts. Automaton has 333 states and 510 transitions. Word has length 100 [2024-11-19 22:02:47,944 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 22:02:47,944 INFO L471 AbstractCegarLoop]: Abstraction has 333 states and 510 transitions. [2024-11-19 22:02:47,944 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 17.25) internal successors, (69), 5 states have internal predecessors, (69), 3 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (11), 2 states have call predecessors, (11), 3 states have call successors, (11) [2024-11-19 22:02:47,945 INFO L276 IsEmpty]: Start isEmpty. Operand 333 states and 510 transitions. [2024-11-19 22:02:47,946 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-11-19 22:02:47,946 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 22:02:47,946 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] [2024-11-19 22:02:47,955 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-19 22:02:48,147 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 [2024-11-19 22:02:48,147 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 22:02:48,147 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 22:02:48,147 INFO L85 PathProgramCache]: Analyzing trace with hash -1218296481, now seen corresponding path program 1 times [2024-11-19 22:02:48,148 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 22:02:48,148 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [273716685] [2024-11-19 22:02:48,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 22:02:48,148 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 22:02:48,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:02:48,243 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-19 22:02:48,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:02:48,254 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-19 22:02:48,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:02:48,257 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-19 22:02:48,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:02:48,280 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-19 22:02:48,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:02:48,300 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-11-19 22:02:48,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:02:48,303 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-11-19 22:02:48,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:02:48,318 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-19 22:02:48,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:02:48,332 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-11-19 22:02:48,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:02:48,335 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-11-19 22:02:48,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:02:48,338 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-11-19 22:02:48,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:02:48,340 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-19 22:02:48,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:02:48,343 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-19 22:02:48,347 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 22:02:48,347 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [273716685] [2024-11-19 22:02:48,347 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [273716685] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 22:02:48,347 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1700827155] [2024-11-19 22:02:48,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 22:02:48,348 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 22:02:48,348 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 22:02:48,351 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) [2024-11-19 22:02:48,352 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-19 22:02:48,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:02:48,549 INFO L255 TraceCheckSpWp]: Trace formula consists of 951 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-19 22:02:48,553 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 22:02:48,603 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-19 22:02:48,604 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 22:02:48,605 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1700827155] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 22:02:48,605 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 22:02:48,605 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [12] total 15 [2024-11-19 22:02:48,605 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1854468303] [2024-11-19 22:02:48,605 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 22:02:48,606 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 22:02:48,606 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 22:02:48,607 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 22:02:48,607 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=180, Unknown=0, NotChecked=0, Total=210 [2024-11-19 22:02:48,607 INFO L87 Difference]: Start difference. First operand 333 states and 510 transitions. Second operand has 5 states, 5 states have (on average 14.2) internal successors, (71), 5 states have internal predecessors, (71), 3 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2024-11-19 22:02:48,672 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 22:02:48,673 INFO L93 Difference]: Finished difference Result 655 states and 1009 transitions. [2024-11-19 22:02:48,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-19 22:02:48,674 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.2) internal successors, (71), 5 states have internal predecessors, (71), 3 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 101 [2024-11-19 22:02:48,674 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 22:02:48,677 INFO L225 Difference]: With dead ends: 655 [2024-11-19 22:02:48,677 INFO L226 Difference]: Without dead ends: 335 [2024-11-19 22:02:48,678 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 128 GetRequests, 115 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=180, Unknown=0, NotChecked=0, Total=210 [2024-11-19 22:02:48,679 INFO L432 NwaCegarLoop]: 411 mSDtfsCounter, 2 mSDsluCounter, 1216 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 1627 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 [2024-11-19 22:02:48,679 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 1627 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 22:02:48,681 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 335 states. [2024-11-19 22:02:48,690 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 335 to 335. [2024-11-19 22:02:48,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 335 states, 262 states have (on average 1.5419847328244274) internal successors, (404), 267 states have internal predecessors, (404), 53 states have call successors, (53), 17 states have call predecessors, (53), 19 states have return successors, (59), 52 states have call predecessors, (59), 52 states have call successors, (59) [2024-11-19 22:02:48,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 335 states to 335 states and 516 transitions. [2024-11-19 22:02:48,695 INFO L78 Accepts]: Start accepts. Automaton has 335 states and 516 transitions. Word has length 101 [2024-11-19 22:02:48,695 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 22:02:48,695 INFO L471 AbstractCegarLoop]: Abstraction has 335 states and 516 transitions. [2024-11-19 22:02:48,696 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.2) internal successors, (71), 5 states have internal predecessors, (71), 3 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2024-11-19 22:02:48,696 INFO L276 IsEmpty]: Start isEmpty. Operand 335 states and 516 transitions. [2024-11-19 22:02:48,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2024-11-19 22:02:48,698 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 22:02:48,698 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] [2024-11-19 22:02:48,707 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-11-19 22:02:48,898 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 [2024-11-19 22:02:48,899 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 22:02:48,899 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 22:02:48,899 INFO L85 PathProgramCache]: Analyzing trace with hash 911760390, now seen corresponding path program 1 times [2024-11-19 22:02:48,900 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 22:02:48,900 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [229337270] [2024-11-19 22:02:48,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 22:02:48,900 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 22:02:48,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:02:48,990 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-19 22:02:48,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:02:48,999 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-19 22:02:49,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:02:49,001 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-19 22:02:49,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:02:49,003 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-19 22:02:49,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:02:49,006 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-19 22:02:49,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:02:49,022 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-19 22:02:49,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:02:49,032 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-19 22:02:49,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:02:49,041 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-19 22:02:49,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:02:49,043 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-11-19 22:02:49,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:02:49,045 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-19 22:02:49,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:02:49,047 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-11-19 22:02:49,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:02:49,048 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-19 22:02:49,048 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 22:02:49,048 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [229337270] [2024-11-19 22:02:49,048 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [229337270] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 22:02:49,049 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 22:02:49,049 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-19 22:02:49,049 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [769447636] [2024-11-19 22:02:49,049 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 22:02:49,049 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-19 22:02:49,049 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 22:02:49,050 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-19 22:02:49,050 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-19 22:02:49,050 INFO L87 Difference]: Start difference. First operand 335 states and 516 transitions. Second operand has 9 states, 8 states have (on average 8.375) internal successors, (67), 5 states have internal predecessors, (67), 3 states have call successors, (13), 6 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 3 states have call successors, (11) [2024-11-19 22:02:50,368 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 22:02:50,369 INFO L93 Difference]: Finished difference Result 740 states and 1142 transitions. [2024-11-19 22:02:50,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-19 22:02:50,369 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 8.375) internal successors, (67), 5 states have internal predecessors, (67), 3 states have call successors, (13), 6 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 3 states have call successors, (11) Word has length 102 [2024-11-19 22:02:50,370 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 22:02:50,372 INFO L225 Difference]: With dead ends: 740 [2024-11-19 22:02:50,375 INFO L226 Difference]: Without dead ends: 428 [2024-11-19 22:02:50,376 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=72, Invalid=200, Unknown=0, NotChecked=0, Total=272 [2024-11-19 22:02:50,376 INFO L432 NwaCegarLoop]: 179 mSDtfsCounter, 862 mSDsluCounter, 929 mSDsCounter, 0 mSdLazyCounter, 1810 mSolverCounterSat, 247 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 863 SdHoareTripleChecker+Valid, 1108 SdHoareTripleChecker+Invalid, 2057 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 247 IncrementalHoareTripleChecker+Valid, 1810 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-19 22:02:50,377 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [863 Valid, 1108 Invalid, 2057 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [247 Valid, 1810 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-19 22:02:50,377 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 428 states. [2024-11-19 22:02:50,418 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 428 to 335. [2024-11-19 22:02:50,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 335 states, 262 states have (on average 1.5419847328244274) internal successors, (404), 267 states have internal predecessors, (404), 53 states have call successors, (53), 17 states have call predecessors, (53), 19 states have return successors, (58), 52 states have call predecessors, (58), 52 states have call successors, (58) [2024-11-19 22:02:50,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 335 states to 335 states and 515 transitions. [2024-11-19 22:02:50,421 INFO L78 Accepts]: Start accepts. Automaton has 335 states and 515 transitions. Word has length 102 [2024-11-19 22:02:50,422 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 22:02:50,422 INFO L471 AbstractCegarLoop]: Abstraction has 335 states and 515 transitions. [2024-11-19 22:02:50,423 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 8.375) internal successors, (67), 5 states have internal predecessors, (67), 3 states have call successors, (13), 6 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 3 states have call successors, (11) [2024-11-19 22:02:50,423 INFO L276 IsEmpty]: Start isEmpty. Operand 335 states and 515 transitions. [2024-11-19 22:02:50,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2024-11-19 22:02:50,424 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 22:02:50,425 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] [2024-11-19 22:02:50,425 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-19 22:02:50,425 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 22:02:50,426 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 22:02:50,426 INFO L85 PathProgramCache]: Analyzing trace with hash -257413121, now seen corresponding path program 2 times [2024-11-19 22:02:50,426 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 22:02:50,426 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1296776176] [2024-11-19 22:02:50,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 22:02:50,426 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 22:02:50,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:02:50,540 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-19 22:02:50,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:02:50,553 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-19 22:02:50,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:02:50,556 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-19 22:02:50,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:02:50,559 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-19 22:02:50,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:02:50,561 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-19 22:02:50,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:02:50,578 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-19 22:02:50,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:02:50,588 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-19 22:02:50,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:02:50,599 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-19 22:02:50,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:02:50,602 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-19 22:02:50,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:02:50,605 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-19 22:02:50,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:02:50,607 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-19 22:02:50,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:02:50,609 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-19 22:02:50,609 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 22:02:50,609 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1296776176] [2024-11-19 22:02:50,609 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1296776176] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 22:02:50,609 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 22:02:50,609 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-19 22:02:50,610 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1146067105] [2024-11-19 22:02:50,610 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 22:02:50,610 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-19 22:02:50,610 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 22:02:50,611 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-19 22:02:50,611 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-19 22:02:50,611 INFO L87 Difference]: Start difference. First operand 335 states and 515 transitions. Second operand has 9 states, 8 states have (on average 8.5) internal successors, (68), 5 states have internal predecessors, (68), 3 states have call successors, (13), 6 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 3 states have call successors, (11) [2024-11-19 22:02:51,849 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 22:02:51,849 INFO L93 Difference]: Finished difference Result 742 states and 1145 transitions. [2024-11-19 22:02:51,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-19 22:02:51,849 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 8.5) internal successors, (68), 5 states have internal predecessors, (68), 3 states have call successors, (13), 6 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 3 states have call successors, (11) Word has length 103 [2024-11-19 22:02:51,849 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 22:02:51,851 INFO L225 Difference]: With dead ends: 742 [2024-11-19 22:02:51,852 INFO L226 Difference]: Without dead ends: 430 [2024-11-19 22:02:51,854 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=72, Invalid=200, Unknown=0, NotChecked=0, Total=272 [2024-11-19 22:02:51,854 INFO L432 NwaCegarLoop]: 179 mSDtfsCounter, 858 mSDsluCounter, 929 mSDsCounter, 0 mSdLazyCounter, 1812 mSolverCounterSat, 247 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 859 SdHoareTripleChecker+Valid, 1108 SdHoareTripleChecker+Invalid, 2059 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 247 IncrementalHoareTripleChecker+Valid, 1812 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-19 22:02:51,854 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [859 Valid, 1108 Invalid, 2059 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [247 Valid, 1812 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-19 22:02:51,856 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 430 states. [2024-11-19 22:02:51,877 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 430 to 337. [2024-11-19 22:02:51,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 337 states, 263 states have (on average 1.5399239543726235) internal successors, (405), 269 states have internal predecessors, (405), 53 states have call successors, (53), 17 states have call predecessors, (53), 20 states have return successors, (60), 52 states have call predecessors, (60), 52 states have call successors, (60) [2024-11-19 22:02:51,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 337 states to 337 states and 518 transitions. [2024-11-19 22:02:51,879 INFO L78 Accepts]: Start accepts. Automaton has 337 states and 518 transitions. Word has length 103 [2024-11-19 22:02:51,879 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 22:02:51,879 INFO L471 AbstractCegarLoop]: Abstraction has 337 states and 518 transitions. [2024-11-19 22:02:51,880 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 8.5) internal successors, (68), 5 states have internal predecessors, (68), 3 states have call successors, (13), 6 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 3 states have call successors, (11) [2024-11-19 22:02:51,880 INFO L276 IsEmpty]: Start isEmpty. Operand 337 states and 518 transitions. [2024-11-19 22:02:51,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2024-11-19 22:02:51,881 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 22:02:51,881 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] [2024-11-19 22:02:51,881 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-19 22:02:51,883 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 22:02:51,883 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 22:02:51,883 INFO L85 PathProgramCache]: Analyzing trace with hash -1904686847, now seen corresponding path program 1 times [2024-11-19 22:02:51,883 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 22:02:51,883 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1769760198] [2024-11-19 22:02:51,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 22:02:51,883 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 22:02:51,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:02:51,973 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-19 22:02:51,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:02:51,982 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-19 22:02:51,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:02:51,985 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-19 22:02:51,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:02:51,986 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-19 22:02:51,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:02:51,988 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-19 22:02:51,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:02:52,008 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-19 22:02:52,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:02:52,038 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-11-19 22:02:52,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:02:52,049 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-11-19 22:02:52,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:02:52,051 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-19 22:02:52,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:02:52,052 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-19 22:02:52,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:02:52,054 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-11-19 22:02:52,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:02:52,056 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-19 22:02:52,056 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 22:02:52,056 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1769760198] [2024-11-19 22:02:52,056 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1769760198] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 22:02:52,056 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 22:02:52,056 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-19 22:02:52,056 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1353672669] [2024-11-19 22:02:52,056 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 22:02:52,056 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-19 22:02:52,056 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 22:02:52,057 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-19 22:02:52,057 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2024-11-19 22:02:52,057 INFO L87 Difference]: Start difference. First operand 337 states and 518 transitions. Second operand has 12 states, 11 states have (on average 6.545454545454546) internal successors, (72), 8 states have internal predecessors, (72), 4 states have call successors, (13), 6 states have call predecessors, (13), 3 states have return successors, (11), 3 states have call predecessors, (11), 4 states have call successors, (11) [2024-11-19 22:02:53,600 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 22:02:53,600 INFO L93 Difference]: Finished difference Result 740 states and 1140 transitions. [2024-11-19 22:02:53,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-19 22:02:53,601 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 6.545454545454546) internal successors, (72), 8 states have internal predecessors, (72), 4 states have call successors, (13), 6 states have call predecessors, (13), 3 states have return successors, (11), 3 states have call predecessors, (11), 4 states have call successors, (11) Word has length 104 [2024-11-19 22:02:53,601 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 22:02:53,603 INFO L225 Difference]: With dead ends: 740 [2024-11-19 22:02:53,604 INFO L226 Difference]: Without dead ends: 430 [2024-11-19 22:02:53,605 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=102, Invalid=404, Unknown=0, NotChecked=0, Total=506 [2024-11-19 22:02:53,605 INFO L432 NwaCegarLoop]: 177 mSDtfsCounter, 862 mSDsluCounter, 1358 mSDsCounter, 0 mSdLazyCounter, 3034 mSolverCounterSat, 252 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 863 SdHoareTripleChecker+Valid, 1535 SdHoareTripleChecker+Invalid, 3286 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 252 IncrementalHoareTripleChecker+Valid, 3034 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-19 22:02:53,605 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [863 Valid, 1535 Invalid, 3286 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [252 Valid, 3034 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-19 22:02:53,607 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 430 states. [2024-11-19 22:02:53,624 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 430 to 337. [2024-11-19 22:02:53,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 337 states, 263 states have (on average 1.5399239543726235) internal successors, (405), 269 states have internal predecessors, (405), 53 states have call successors, (53), 17 states have call predecessors, (53), 20 states have return successors, (59), 52 states have call predecessors, (59), 52 states have call successors, (59) [2024-11-19 22:02:53,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 337 states to 337 states and 517 transitions. [2024-11-19 22:02:53,628 INFO L78 Accepts]: Start accepts. Automaton has 337 states and 517 transitions. Word has length 104 [2024-11-19 22:02:53,628 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 22:02:53,628 INFO L471 AbstractCegarLoop]: Abstraction has 337 states and 517 transitions. [2024-11-19 22:02:53,629 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 6.545454545454546) internal successors, (72), 8 states have internal predecessors, (72), 4 states have call successors, (13), 6 states have call predecessors, (13), 3 states have return successors, (11), 3 states have call predecessors, (11), 4 states have call successors, (11) [2024-11-19 22:02:53,629 INFO L276 IsEmpty]: Start isEmpty. Operand 337 states and 517 transitions. [2024-11-19 22:02:53,630 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2024-11-19 22:02:53,631 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 22:02:53,631 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] [2024-11-19 22:02:53,631 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-19 22:02:53,631 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 22:02:53,632 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 22:02:53,632 INFO L85 PathProgramCache]: Analyzing trace with hash -194989370, now seen corresponding path program 2 times [2024-11-19 22:02:53,632 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 22:02:53,632 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1524959983] [2024-11-19 22:02:53,632 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 22:02:53,632 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 22:02:53,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:02:53,745 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-19 22:02:53,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:02:53,754 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-19 22:02:53,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:02:53,756 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-19 22:02:53,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:02:53,758 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-19 22:02:53,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:02:53,760 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-19 22:02:53,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:02:53,779 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-19 22:02:53,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:02:53,812 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-11-19 22:02:53,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:02:53,823 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-19 22:02:53,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:02:53,825 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-19 22:02:53,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:02:53,827 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-11-19 22:02:53,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:02:53,828 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2024-11-19 22:02:53,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:02:53,830 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-19 22:02:53,831 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 22:02:53,831 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1524959983] [2024-11-19 22:02:53,831 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1524959983] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 22:02:53,831 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 22:02:53,832 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-19 22:02:53,832 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1463451799] [2024-11-19 22:02:53,832 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 22:02:53,832 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-19 22:02:53,832 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 22:02:53,833 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-19 22:02:53,833 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2024-11-19 22:02:53,833 INFO L87 Difference]: Start difference. First operand 337 states and 517 transitions. Second operand has 12 states, 11 states have (on average 6.636363636363637) internal successors, (73), 8 states have internal predecessors, (73), 4 states have call successors, (13), 6 states have call predecessors, (13), 3 states have return successors, (11), 3 states have call predecessors, (11), 4 states have call successors, (11) [2024-11-19 22:02:55,505 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 22:02:55,505 INFO L93 Difference]: Finished difference Result 742 states and 1146 transitions. [2024-11-19 22:02:55,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-19 22:02:55,506 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 6.636363636363637) internal successors, (73), 8 states have internal predecessors, (73), 4 states have call successors, (13), 6 states have call predecessors, (13), 3 states have return successors, (11), 3 states have call predecessors, (11), 4 states have call successors, (11) Word has length 105 [2024-11-19 22:02:55,506 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 22:02:55,509 INFO L225 Difference]: With dead ends: 742 [2024-11-19 22:02:55,509 INFO L226 Difference]: Without dead ends: 432 [2024-11-19 22:02:55,510 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=102, Invalid=404, Unknown=0, NotChecked=0, Total=506 [2024-11-19 22:02:55,510 INFO L432 NwaCegarLoop]: 178 mSDtfsCounter, 858 mSDsluCounter, 1358 mSDsCounter, 0 mSdLazyCounter, 3062 mSolverCounterSat, 249 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 859 SdHoareTripleChecker+Valid, 1536 SdHoareTripleChecker+Invalid, 3311 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 249 IncrementalHoareTripleChecker+Valid, 3062 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-19 22:02:55,510 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [859 Valid, 1536 Invalid, 3311 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [249 Valid, 3062 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-19 22:02:55,511 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 432 states. [2024-11-19 22:02:55,526 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 432 to 339. [2024-11-19 22:02:55,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 339 states, 264 states have (on average 1.5378787878787878) internal successors, (406), 271 states have internal predecessors, (406), 53 states have call successors, (53), 17 states have call predecessors, (53), 21 states have return successors, (64), 52 states have call predecessors, (64), 52 states have call successors, (64) [2024-11-19 22:02:55,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 339 states to 339 states and 523 transitions. [2024-11-19 22:02:55,529 INFO L78 Accepts]: Start accepts. Automaton has 339 states and 523 transitions. Word has length 105 [2024-11-19 22:02:55,529 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 22:02:55,529 INFO L471 AbstractCegarLoop]: Abstraction has 339 states and 523 transitions. [2024-11-19 22:02:55,529 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 6.636363636363637) internal successors, (73), 8 states have internal predecessors, (73), 4 states have call successors, (13), 6 states have call predecessors, (13), 3 states have return successors, (11), 3 states have call predecessors, (11), 4 states have call successors, (11) [2024-11-19 22:02:55,529 INFO L276 IsEmpty]: Start isEmpty. Operand 339 states and 523 transitions. [2024-11-19 22:02:55,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2024-11-19 22:02:55,531 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 22:02:55,532 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] [2024-11-19 22:02:55,532 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-19 22:02:55,532 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 22:02:55,532 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 22:02:55,532 INFO L85 PathProgramCache]: Analyzing trace with hash 816721852, now seen corresponding path program 1 times [2024-11-19 22:02:55,532 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 22:02:55,533 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [832171325] [2024-11-19 22:02:55,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 22:02:55,533 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 22:02:55,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:02:55,636 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-19 22:02:55,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:02:55,647 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-19 22:02:55,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:02:55,649 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-19 22:02:55,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:02:55,684 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-19 22:02:55,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:02:55,687 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-19 22:02:55,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:02:55,690 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-19 22:02:55,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:02:55,701 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-11-19 22:02:55,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:02:55,711 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-11-19 22:02:55,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:02:55,713 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-19 22:02:55,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:02:55,715 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-11-19 22:02:55,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:02:55,716 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-19 22:02:55,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:02:55,718 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2024-11-19 22:02:55,718 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 22:02:55,718 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [832171325] [2024-11-19 22:02:55,718 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [832171325] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 22:02:55,718 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1086433292] [2024-11-19 22:02:55,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 22:02:55,718 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 22:02:55,718 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 22:02:55,720 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) [2024-11-19 22:02:55,721 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-19 22:02:55,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:02:55,905 INFO L255 TraceCheckSpWp]: Trace formula consists of 956 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-19 22:02:55,908 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 22:02:55,940 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-19 22:02:55,940 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 22:02:56,019 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-19 22:02:56,020 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1086433292] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 22:02:56,020 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 22:02:56,020 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 4, 4] total 15 [2024-11-19 22:02:56,020 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1552183655] [2024-11-19 22:02:56,020 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 22:02:56,021 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-19 22:02:56,021 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 22:02:56,021 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-19 22:02:56,021 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=177, Unknown=0, NotChecked=0, Total=210 [2024-11-19 22:02:56,021 INFO L87 Difference]: Start difference. First operand 339 states and 523 transitions. Second operand has 15 states, 14 states have (on average 8.571428571428571) internal successors, (120), 11 states have internal predecessors, (120), 4 states have call successors, (27), 6 states have call predecessors, (27), 3 states have return successors, (20), 3 states have call predecessors, (20), 4 states have call successors, (20) [2024-11-19 22:02:58,017 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 22:02:58,017 INFO L93 Difference]: Finished difference Result 1092 states and 1778 transitions. [2024-11-19 22:02:58,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-19 22:02:58,018 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 8.571428571428571) internal successors, (120), 11 states have internal predecessors, (120), 4 states have call successors, (27), 6 states have call predecessors, (27), 3 states have return successors, (20), 3 states have call predecessors, (20), 4 states have call successors, (20) Word has length 106 [2024-11-19 22:02:58,018 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 22:02:58,022 INFO L225 Difference]: With dead ends: 1092 [2024-11-19 22:02:58,022 INFO L226 Difference]: Without dead ends: 784 [2024-11-19 22:02:58,024 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 259 GetRequests, 229 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 149 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=164, Invalid=828, Unknown=0, NotChecked=0, Total=992 [2024-11-19 22:02:58,024 INFO L432 NwaCegarLoop]: 169 mSDtfsCounter, 1772 mSDsluCounter, 1634 mSDsCounter, 0 mSdLazyCounter, 3847 mSolverCounterSat, 539 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1789 SdHoareTripleChecker+Valid, 1803 SdHoareTripleChecker+Invalid, 4386 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 539 IncrementalHoareTripleChecker+Valid, 3847 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-11-19 22:02:58,024 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1789 Valid, 1803 Invalid, 4386 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [539 Valid, 3847 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-11-19 22:02:58,025 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 784 states. [2024-11-19 22:02:58,047 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 784 to 667. [2024-11-19 22:02:58,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 667 states, 528 states have (on average 1.5852272727272727) internal successors, (837), 535 states have internal predecessors, (837), 117 states have call successors, (117), 17 states have call predecessors, (117), 21 states have return successors, (138), 116 states have call predecessors, (138), 116 states have call successors, (138) [2024-11-19 22:02:58,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 667 states to 667 states and 1092 transitions. [2024-11-19 22:02:58,051 INFO L78 Accepts]: Start accepts. Automaton has 667 states and 1092 transitions. Word has length 106 [2024-11-19 22:02:58,051 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 22:02:58,052 INFO L471 AbstractCegarLoop]: Abstraction has 667 states and 1092 transitions. [2024-11-19 22:02:58,052 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 8.571428571428571) internal successors, (120), 11 states have internal predecessors, (120), 4 states have call successors, (27), 6 states have call predecessors, (27), 3 states have return successors, (20), 3 states have call predecessors, (20), 4 states have call successors, (20) [2024-11-19 22:02:58,052 INFO L276 IsEmpty]: Start isEmpty. Operand 667 states and 1092 transitions. [2024-11-19 22:02:58,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-11-19 22:02:58,054 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 22:02:58,054 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] [2024-11-19 22:02:58,062 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-19 22:02:58,254 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 22:02:58,255 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 22:02:58,256 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 22:02:58,256 INFO L85 PathProgramCache]: Analyzing trace with hash -725397729, now seen corresponding path program 1 times [2024-11-19 22:02:58,256 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 22:02:58,256 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1728706371] [2024-11-19 22:02:58,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 22:02:58,256 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 22:02:58,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:02:58,325 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-19 22:02:58,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:02:58,333 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-19 22:02:58,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:02:58,335 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-19 22:02:58,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:02:58,337 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-19 22:02:58,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:02:58,340 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-19 22:02:58,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:02:58,342 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-19 22:02:58,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:02:58,348 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-11-19 22:02:58,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:02:58,356 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-19 22:02:58,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:02:58,358 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-11-19 22:02:58,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:02:58,359 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-11-19 22:02:58,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:02:58,360 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-19 22:02:58,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:02:58,361 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-19 22:02:58,362 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 22:02:58,362 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1728706371] [2024-11-19 22:02:58,362 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1728706371] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 22:02:58,362 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 22:02:58,362 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-19 22:02:58,362 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [937658688] [2024-11-19 22:02:58,362 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 22:02:58,363 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-19 22:02:58,363 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 22:02:58,363 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-19 22:02:58,363 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-19 22:02:58,363 INFO L87 Difference]: Start difference. First operand 667 states and 1092 transitions. Second operand has 7 states, 7 states have (on average 10.285714285714286) internal successors, (72), 3 states have internal predecessors, (72), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-19 22:02:59,242 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 22:02:59,243 INFO L93 Difference]: Finished difference Result 1657 states and 2777 transitions. [2024-11-19 22:02:59,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-19 22:02:59,243 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.285714285714286) internal successors, (72), 3 states have internal predecessors, (72), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 109 [2024-11-19 22:02:59,243 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 22:02:59,249 INFO L225 Difference]: With dead ends: 1657 [2024-11-19 22:02:59,249 INFO L226 Difference]: Without dead ends: 1068 [2024-11-19 22:02:59,252 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-11-19 22:02:59,252 INFO L432 NwaCegarLoop]: 188 mSDtfsCounter, 961 mSDsluCounter, 639 mSDsCounter, 0 mSdLazyCounter, 1041 mSolverCounterSat, 307 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 976 SdHoareTripleChecker+Valid, 827 SdHoareTripleChecker+Invalid, 1348 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 307 IncrementalHoareTripleChecker+Valid, 1041 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-19 22:02:59,252 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [976 Valid, 827 Invalid, 1348 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [307 Valid, 1041 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-19 22:02:59,255 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1068 states. [2024-11-19 22:02:59,319 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1068 to 967. [2024-11-19 22:02:59,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 967 states, 764 states have (on average 1.5994764397905759) internal successors, (1222), 771 states have internal predecessors, (1222), 181 states have call successors, (181), 17 states have call predecessors, (181), 21 states have return successors, (212), 180 states have call predecessors, (212), 180 states have call successors, (212) [2024-11-19 22:02:59,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 967 states to 967 states and 1615 transitions. [2024-11-19 22:02:59,326 INFO L78 Accepts]: Start accepts. Automaton has 967 states and 1615 transitions. Word has length 109 [2024-11-19 22:02:59,327 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 22:02:59,327 INFO L471 AbstractCegarLoop]: Abstraction has 967 states and 1615 transitions. [2024-11-19 22:02:59,327 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.285714285714286) internal successors, (72), 3 states have internal predecessors, (72), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-19 22:02:59,327 INFO L276 IsEmpty]: Start isEmpty. Operand 967 states and 1615 transitions. [2024-11-19 22:02:59,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2024-11-19 22:02:59,331 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 22:02:59,331 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] [2024-11-19 22:02:59,331 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-19 22:02:59,331 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 22:02:59,331 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 22:02:59,332 INFO L85 PathProgramCache]: Analyzing trace with hash 1316821944, now seen corresponding path program 1 times [2024-11-19 22:02:59,332 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 22:02:59,332 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1665677545] [2024-11-19 22:02:59,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 22:02:59,332 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 22:02:59,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:02:59,393 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-19 22:02:59,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:02:59,400 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-19 22:02:59,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:02:59,402 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-19 22:02:59,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:02:59,405 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-19 22:02:59,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:02:59,409 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-19 22:02:59,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:02:59,412 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-19 22:02:59,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:02:59,421 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-19 22:02:59,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:02:59,430 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-11-19 22:02:59,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:02:59,432 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-19 22:02:59,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:02:59,434 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-19 22:02:59,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:02:59,436 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-11-19 22:02:59,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:02:59,437 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-19 22:02:59,437 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 22:02:59,437 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1665677545] [2024-11-19 22:02:59,437 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1665677545] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 22:02:59,438 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 22:02:59,438 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-19 22:02:59,438 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1529125481] [2024-11-19 22:02:59,438 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 22:02:59,438 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-19 22:02:59,438 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 22:02:59,439 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-19 22:02:59,439 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-19 22:02:59,439 INFO L87 Difference]: Start difference. First operand 967 states and 1615 transitions. Second operand has 7 states, 7 states have (on average 10.428571428571429) internal successors, (73), 3 states have internal predecessors, (73), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-19 22:03:00,352 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 22:03:00,352 INFO L93 Difference]: Finished difference Result 2397 states and 4057 transitions. [2024-11-19 22:03:00,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-19 22:03:00,353 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.428571428571429) internal successors, (73), 3 states have internal predecessors, (73), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 110 [2024-11-19 22:03:00,353 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 22:03:00,361 INFO L225 Difference]: With dead ends: 2397 [2024-11-19 22:03:00,361 INFO L226 Difference]: Without dead ends: 1561 [2024-11-19 22:03:00,363 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-11-19 22:03:00,364 INFO L432 NwaCegarLoop]: 183 mSDtfsCounter, 959 mSDsluCounter, 636 mSDsCounter, 0 mSdLazyCounter, 1032 mSolverCounterSat, 307 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 974 SdHoareTripleChecker+Valid, 819 SdHoareTripleChecker+Invalid, 1339 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 307 IncrementalHoareTripleChecker+Valid, 1032 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-19 22:03:00,364 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [974 Valid, 819 Invalid, 1339 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [307 Valid, 1032 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-19 22:03:00,365 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1561 states. [2024-11-19 22:03:00,408 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1561 to 1460. [2024-11-19 22:03:00,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1460 states, 1162 states have (on average 1.604130808950086) internal successors, (1864), 1169 states have internal predecessors, (1864), 276 states have call successors, (276), 17 states have call predecessors, (276), 21 states have return successors, (307), 275 states have call predecessors, (307), 275 states have call successors, (307) [2024-11-19 22:03:00,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1460 states to 1460 states and 2447 transitions. [2024-11-19 22:03:00,415 INFO L78 Accepts]: Start accepts. Automaton has 1460 states and 2447 transitions. Word has length 110 [2024-11-19 22:03:00,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 22:03:00,415 INFO L471 AbstractCegarLoop]: Abstraction has 1460 states and 2447 transitions. [2024-11-19 22:03:00,415 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.428571428571429) internal successors, (73), 3 states have internal predecessors, (73), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-19 22:03:00,415 INFO L276 IsEmpty]: Start isEmpty. Operand 1460 states and 2447 transitions. [2024-11-19 22:03:00,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-11-19 22:03:00,419 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 22:03:00,419 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] [2024-11-19 22:03:00,419 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-19 22:03:00,420 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 22:03:00,420 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 22:03:00,420 INFO L85 PathProgramCache]: Analyzing trace with hash 15321997, now seen corresponding path program 1 times [2024-11-19 22:03:00,420 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 22:03:00,420 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [810277321] [2024-11-19 22:03:00,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 22:03:00,420 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 22:03:00,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:03:00,461 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-19 22:03:00,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:03:00,470 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-19 22:03:00,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:03:00,473 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-19 22:03:00,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:03:00,475 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-19 22:03:00,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:03:00,476 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-19 22:03:00,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:03:00,478 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-19 22:03:00,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:03:00,496 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-11-19 22:03:00,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:03:00,503 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-11-19 22:03:00,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:03:00,505 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-19 22:03:00,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:03:00,506 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-11-19 22:03:00,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:03:00,508 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-11-19 22:03:00,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:03:00,509 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-19 22:03:00,509 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 22:03:00,509 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [810277321] [2024-11-19 22:03:00,509 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [810277321] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 22:03:00,509 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 22:03:00,509 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-19 22:03:00,510 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [816521431] [2024-11-19 22:03:00,510 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 22:03:00,510 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-19 22:03:00,510 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 22:03:00,510 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-19 22:03:00,511 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-19 22:03:00,511 INFO L87 Difference]: Start difference. First operand 1460 states and 2447 transitions. Second operand has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 3 states have internal predecessors, (74), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-19 22:03:01,389 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 22:03:01,389 INFO L93 Difference]: Finished difference Result 3499 states and 5975 transitions. [2024-11-19 22:03:01,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-19 22:03:01,390 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 3 states have internal predecessors, (74), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 111 [2024-11-19 22:03:01,390 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 22:03:01,400 INFO L225 Difference]: With dead ends: 3499 [2024-11-19 22:03:01,401 INFO L226 Difference]: Without dead ends: 2305 [2024-11-19 22:03:01,404 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-11-19 22:03:01,405 INFO L432 NwaCegarLoop]: 178 mSDtfsCounter, 957 mSDsluCounter, 627 mSDsCounter, 0 mSdLazyCounter, 1020 mSolverCounterSat, 298 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 972 SdHoareTripleChecker+Valid, 805 SdHoareTripleChecker+Invalid, 1318 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 298 IncrementalHoareTripleChecker+Valid, 1020 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-19 22:03:01,405 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [972 Valid, 805 Invalid, 1318 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [298 Valid, 1020 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-19 22:03:01,408 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2305 states. [2024-11-19 22:03:01,485 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2305 to 2204. [2024-11-19 22:03:01,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2204 states, 1783 states have (on average 1.6079641054402691) internal successors, (2867), 1790 states have internal predecessors, (2867), 399 states have call successors, (399), 17 states have call predecessors, (399), 21 states have return successors, (446), 398 states have call predecessors, (446), 398 states have call successors, (446) [2024-11-19 22:03:01,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2204 states to 2204 states and 3712 transitions. [2024-11-19 22:03:01,499 INFO L78 Accepts]: Start accepts. Automaton has 2204 states and 3712 transitions. Word has length 111 [2024-11-19 22:03:01,500 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 22:03:01,500 INFO L471 AbstractCegarLoop]: Abstraction has 2204 states and 3712 transitions. [2024-11-19 22:03:01,500 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 3 states have internal predecessors, (74), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-19 22:03:01,500 INFO L276 IsEmpty]: Start isEmpty. Operand 2204 states and 3712 transitions. [2024-11-19 22:03:01,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2024-11-19 22:03:01,505 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 22:03:01,505 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] [2024-11-19 22:03:01,505 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-19 22:03:01,505 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 22:03:01,506 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 22:03:01,506 INFO L85 PathProgramCache]: Analyzing trace with hash 1908613625, now seen corresponding path program 1 times [2024-11-19 22:03:01,506 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 22:03:01,506 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1770588807] [2024-11-19 22:03:01,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 22:03:01,506 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 22:03:01,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:03:01,549 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-19 22:03:01,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:03:01,556 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-19 22:03:01,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:03:01,559 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-19 22:03:01,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:03:01,561 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-19 22:03:01,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:03:01,563 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-19 22:03:01,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:03:01,567 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-19 22:03:01,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:03:01,581 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-11-19 22:03:01,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:03:01,588 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-19 22:03:01,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:03:01,591 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-19 22:03:01,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:03:01,593 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2024-11-19 22:03:01,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:03:01,594 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-11-19 22:03:01,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:03:01,596 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-19 22:03:01,596 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 22:03:01,596 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1770588807] [2024-11-19 22:03:01,596 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1770588807] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 22:03:01,596 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 22:03:01,596 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-19 22:03:01,596 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1880678900] [2024-11-19 22:03:01,597 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 22:03:01,597 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-19 22:03:01,597 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 22:03:01,597 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-19 22:03:01,597 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-19 22:03:01,598 INFO L87 Difference]: Start difference. First operand 2204 states and 3712 transitions. Second operand has 7 states, 7 states have (on average 10.714285714285714) internal successors, (75), 3 states have internal predecessors, (75), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-19 22:03:02,460 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 22:03:02,461 INFO L93 Difference]: Finished difference Result 5208 states and 8955 transitions. [2024-11-19 22:03:02,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-19 22:03:02,461 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.714285714285714) internal successors, (75), 3 states have internal predecessors, (75), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 112 [2024-11-19 22:03:02,461 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 22:03:02,482 INFO L225 Difference]: With dead ends: 5208 [2024-11-19 22:03:02,482 INFO L226 Difference]: Without dead ends: 3489 [2024-11-19 22:03:02,487 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-11-19 22:03:02,489 INFO L432 NwaCegarLoop]: 178 mSDtfsCounter, 955 mSDsluCounter, 627 mSDsCounter, 0 mSdLazyCounter, 1022 mSolverCounterSat, 298 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 970 SdHoareTripleChecker+Valid, 805 SdHoareTripleChecker+Invalid, 1320 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 298 IncrementalHoareTripleChecker+Valid, 1022 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-19 22:03:02,489 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [970 Valid, 805 Invalid, 1320 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [298 Valid, 1022 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-19 22:03:02,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3489 states. [2024-11-19 22:03:02,655 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3489 to 3388. [2024-11-19 22:03:02,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3388 states, 2788 states have (on average 1.6101147776183644) internal successors, (4489), 2795 states have internal predecessors, (4489), 578 states have call successors, (578), 17 states have call predecessors, (578), 21 states have return successors, (651), 577 states have call predecessors, (651), 577 states have call successors, (651) [2024-11-19 22:03:02,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3388 states to 3388 states and 5718 transitions. [2024-11-19 22:03:02,674 INFO L78 Accepts]: Start accepts. Automaton has 3388 states and 5718 transitions. Word has length 112 [2024-11-19 22:03:02,675 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 22:03:02,675 INFO L471 AbstractCegarLoop]: Abstraction has 3388 states and 5718 transitions. [2024-11-19 22:03:02,675 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.714285714285714) internal successors, (75), 3 states have internal predecessors, (75), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-19 22:03:02,675 INFO L276 IsEmpty]: Start isEmpty. Operand 3388 states and 5718 transitions. [2024-11-19 22:03:02,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2024-11-19 22:03:02,681 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 22:03:02,681 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] [2024-11-19 22:03:02,681 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-19 22:03:02,682 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 22:03:02,682 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 22:03:02,682 INFO L85 PathProgramCache]: Analyzing trace with hash -593063639, now seen corresponding path program 1 times [2024-11-19 22:03:02,682 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 22:03:02,682 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [925652409] [2024-11-19 22:03:02,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 22:03:02,682 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 22:03:02,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:03:02,723 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-19 22:03:02,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:03:02,732 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-19 22:03:02,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:03:02,735 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-19 22:03:02,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:03:02,737 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-19 22:03:02,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:03:02,739 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-19 22:03:02,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:03:02,741 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-19 22:03:02,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:03:02,748 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-19 22:03:02,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:03:02,755 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-19 22:03:02,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:03:02,758 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-11-19 22:03:02,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:03:02,760 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-19 22:03:02,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:03:02,761 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-19 22:03:02,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:03:02,762 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-19 22:03:02,762 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 22:03:02,763 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [925652409] [2024-11-19 22:03:02,763 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [925652409] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 22:03:02,763 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 22:03:02,763 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-19 22:03:02,763 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2059443510] [2024-11-19 22:03:02,763 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 22:03:02,763 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-19 22:03:02,763 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 22:03:02,764 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-19 22:03:02,764 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-19 22:03:02,764 INFO L87 Difference]: Start difference. First operand 3388 states and 5718 transitions. Second operand has 7 states, 7 states have (on average 10.857142857142858) internal successors, (76), 3 states have internal predecessors, (76), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-19 22:03:03,606 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 22:03:03,607 INFO L93 Difference]: Finished difference Result 8281 states and 14271 transitions. [2024-11-19 22:03:03,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-19 22:03:03,607 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.857142857142858) internal successors, (76), 3 states have internal predecessors, (76), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 113 [2024-11-19 22:03:03,607 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 22:03:03,633 INFO L225 Difference]: With dead ends: 8281 [2024-11-19 22:03:03,633 INFO L226 Difference]: Without dead ends: 5630 [2024-11-19 22:03:03,642 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-11-19 22:03:03,644 INFO L432 NwaCegarLoop]: 209 mSDtfsCounter, 953 mSDsluCounter, 692 mSDsCounter, 0 mSdLazyCounter, 1076 mSolverCounterSat, 299 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 968 SdHoareTripleChecker+Valid, 901 SdHoareTripleChecker+Invalid, 1375 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 299 IncrementalHoareTripleChecker+Valid, 1076 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-19 22:03:03,644 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [968 Valid, 901 Invalid, 1375 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [299 Valid, 1076 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-19 22:03:03,649 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5630 states. [2024-11-19 22:03:03,835 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5630 to 5529. [2024-11-19 22:03:03,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5529 states, 4553 states have (on average 1.6022402811333187) internal successors, (7295), 4560 states have internal predecessors, (7295), 954 states have call successors, (954), 17 states have call predecessors, (954), 21 states have return successors, (1071), 953 states have call predecessors, (1071), 953 states have call successors, (1071) [2024-11-19 22:03:03,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5529 states to 5529 states and 9320 transitions. [2024-11-19 22:03:03,857 INFO L78 Accepts]: Start accepts. Automaton has 5529 states and 9320 transitions. Word has length 113 [2024-11-19 22:03:03,857 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 22:03:03,858 INFO L471 AbstractCegarLoop]: Abstraction has 5529 states and 9320 transitions. [2024-11-19 22:03:03,861 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.857142857142858) internal successors, (76), 3 states have internal predecessors, (76), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-19 22:03:03,861 INFO L276 IsEmpty]: Start isEmpty. Operand 5529 states and 9320 transitions. [2024-11-19 22:03:03,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2024-11-19 22:03:03,870 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 22:03:03,870 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] [2024-11-19 22:03:03,870 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-19 22:03:03,870 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 22:03:03,870 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 22:03:03,870 INFO L85 PathProgramCache]: Analyzing trace with hash -38691747, now seen corresponding path program 1 times [2024-11-19 22:03:03,871 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 22:03:03,871 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [712385185] [2024-11-19 22:03:03,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 22:03:03,871 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 22:03:03,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:03:03,920 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-19 22:03:03,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:03:03,927 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-19 22:03:03,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:03:03,929 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-19 22:03:03,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:03:03,931 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-19 22:03:03,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:03:03,932 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-19 22:03:03,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:03:03,933 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-19 22:03:03,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:03:03,940 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-19 22:03:03,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:03:03,947 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-19 22:03:03,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:03:03,949 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-11-19 22:03:03,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:03:03,950 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-11-19 22:03:03,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:03:03,951 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-11-19 22:03:03,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:03:03,953 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-19 22:03:03,953 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 22:03:03,953 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [712385185] [2024-11-19 22:03:03,954 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [712385185] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 22:03:03,954 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 22:03:03,954 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-19 22:03:03,954 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1845482567] [2024-11-19 22:03:03,954 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 22:03:03,954 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-19 22:03:03,954 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 22:03:03,954 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-19 22:03:03,955 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-19 22:03:03,955 INFO L87 Difference]: Start difference. First operand 5529 states and 9320 transitions. Second operand has 7 states, 7 states have (on average 11.0) internal successors, (77), 3 states have internal predecessors, (77), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-19 22:03:04,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 22:03:04,896 INFO L93 Difference]: Finished difference Result 13703 states and 23572 transitions. [2024-11-19 22:03:04,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-19 22:03:04,897 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.0) internal successors, (77), 3 states have internal predecessors, (77), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 114 [2024-11-19 22:03:04,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 22:03:04,933 INFO L225 Difference]: With dead ends: 13703 [2024-11-19 22:03:04,934 INFO L226 Difference]: Without dead ends: 9313 [2024-11-19 22:03:04,947 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-11-19 22:03:04,947 INFO L432 NwaCegarLoop]: 191 mSDtfsCounter, 951 mSDsluCounter, 653 mSDsCounter, 0 mSdLazyCounter, 1052 mSolverCounterSat, 302 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 966 SdHoareTripleChecker+Valid, 844 SdHoareTripleChecker+Invalid, 1354 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 302 IncrementalHoareTripleChecker+Valid, 1052 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-19 22:03:04,948 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [966 Valid, 844 Invalid, 1354 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [302 Valid, 1052 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-19 22:03:04,955 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9313 states. [2024-11-19 22:03:05,276 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9313 to 9212. [2024-11-19 22:03:05,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9212 states, 7630 states have (on average 1.599213630406291) internal successors, (12202), 7637 states have internal predecessors, (12202), 1560 states have call successors, (1560), 17 states have call predecessors, (1560), 21 states have return successors, (1755), 1559 states have call predecessors, (1755), 1559 states have call successors, (1755) [2024-11-19 22:03:05,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9212 states to 9212 states and 15517 transitions. [2024-11-19 22:03:05,322 INFO L78 Accepts]: Start accepts. Automaton has 9212 states and 15517 transitions. Word has length 114 [2024-11-19 22:03:05,322 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 22:03:05,322 INFO L471 AbstractCegarLoop]: Abstraction has 9212 states and 15517 transitions. [2024-11-19 22:03:05,323 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.0) internal successors, (77), 3 states have internal predecessors, (77), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-19 22:03:05,323 INFO L276 IsEmpty]: Start isEmpty. Operand 9212 states and 15517 transitions. [2024-11-19 22:03:05,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2024-11-19 22:03:05,333 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 22:03:05,333 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 22:03:05,333 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-19 22:03:05,333 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 22:03:05,334 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 22:03:05,334 INFO L85 PathProgramCache]: Analyzing trace with hash 1889380491, now seen corresponding path program 1 times [2024-11-19 22:03:05,334 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 22:03:05,334 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [138515351] [2024-11-19 22:03:05,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 22:03:05,334 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 22:03:05,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:03:05,378 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-19 22:03:05,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:03:05,386 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-19 22:03:05,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:03:05,390 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-19 22:03:05,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:03:05,392 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-19 22:03:05,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:03:05,398 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-19 22:03:05,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:03:05,400 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-19 22:03:05,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:03:05,409 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-11-19 22:03:05,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:03:05,415 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-19 22:03:05,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:03:05,417 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-19 22:03:05,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:03:05,418 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-11-19 22:03:05,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:03:05,419 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-19 22:03:05,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:03:05,421 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-19 22:03:05,423 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 22:03:05,423 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [138515351] [2024-11-19 22:03:05,423 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [138515351] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 22:03:05,423 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 22:03:05,424 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-19 22:03:05,424 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1595923673] [2024-11-19 22:03:05,424 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 22:03:05,424 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-19 22:03:05,424 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 22:03:05,424 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-19 22:03:05,425 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-19 22:03:05,425 INFO L87 Difference]: Start difference. First operand 9212 states and 15517 transitions. Second operand has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 3 states have internal predecessors, (78), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-19 22:03:06,481 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 22:03:06,481 INFO L93 Difference]: Finished difference Result 23887 states and 41013 transitions. [2024-11-19 22:03:06,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-19 22:03:06,481 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 3 states have internal predecessors, (78), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 115 [2024-11-19 22:03:06,481 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 22:03:06,530 INFO L225 Difference]: With dead ends: 23887 [2024-11-19 22:03:06,531 INFO L226 Difference]: Without dead ends: 16266 [2024-11-19 22:03:06,555 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-11-19 22:03:06,555 INFO L432 NwaCegarLoop]: 198 mSDtfsCounter, 949 mSDsluCounter, 664 mSDsCounter, 0 mSdLazyCounter, 1060 mSolverCounterSat, 299 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 964 SdHoareTripleChecker+Valid, 862 SdHoareTripleChecker+Invalid, 1359 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 299 IncrementalHoareTripleChecker+Valid, 1060 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-19 22:03:06,556 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [964 Valid, 862 Invalid, 1359 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [299 Valid, 1060 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-19 22:03:06,569 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16266 states. [2024-11-19 22:03:07,051 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16266 to 16165. [2024-11-19 22:03:07,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16165 states, 13380 states have (on average 1.5898355754857998) internal successors, (21272), 13387 states have internal predecessors, (21272), 2763 states have call successors, (2763), 17 states have call predecessors, (2763), 21 states have return successors, (3102), 2762 states have call predecessors, (3102), 2762 states have call successors, (3102) [2024-11-19 22:03:07,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16165 states to 16165 states and 27137 transitions. [2024-11-19 22:03:07,139 INFO L78 Accepts]: Start accepts. Automaton has 16165 states and 27137 transitions. Word has length 115 [2024-11-19 22:03:07,139 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 22:03:07,140 INFO L471 AbstractCegarLoop]: Abstraction has 16165 states and 27137 transitions. [2024-11-19 22:03:07,140 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 3 states have internal predecessors, (78), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-19 22:03:07,140 INFO L276 IsEmpty]: Start isEmpty. Operand 16165 states and 27137 transitions. [2024-11-19 22:03:07,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2024-11-19 22:03:07,155 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 22:03:07,155 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 22:03:07,155 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-19 22:03:07,155 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 22:03:07,156 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 22:03:07,156 INFO L85 PathProgramCache]: Analyzing trace with hash -550230466, now seen corresponding path program 1 times [2024-11-19 22:03:07,156 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 22:03:07,156 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [499846006] [2024-11-19 22:03:07,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 22:03:07,156 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 22:03:07,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:03:07,222 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-19 22:03:07,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:03:07,231 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-19 22:03:07,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:03:07,234 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-19 22:03:07,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:03:07,236 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-19 22:03:07,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:03:07,239 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-19 22:03:07,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:03:07,241 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-19 22:03:07,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:03:07,248 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-11-19 22:03:07,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:03:07,258 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-11-19 22:03:07,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:03:07,260 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-19 22:03:07,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:03:07,262 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-19 22:03:07,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:03:07,263 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-11-19 22:03:07,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:03:07,265 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-19 22:03:07,265 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 22:03:07,265 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [499846006] [2024-11-19 22:03:07,265 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [499846006] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 22:03:07,265 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 22:03:07,266 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-19 22:03:07,267 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2085179719] [2024-11-19 22:03:07,267 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 22:03:07,268 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-19 22:03:07,268 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 22:03:07,268 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-19 22:03:07,268 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-19 22:03:07,269 INFO L87 Difference]: Start difference. First operand 16165 states and 27137 transitions. Second operand has 7 states, 7 states have (on average 11.285714285714286) internal successors, (79), 3 states have internal predecessors, (79), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-19 22:03:08,799 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 22:03:08,799 INFO L93 Difference]: Finished difference Result 42853 states and 73410 transitions. [2024-11-19 22:03:08,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-19 22:03:08,803 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.285714285714286) internal successors, (79), 3 states have internal predecessors, (79), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 116 [2024-11-19 22:03:08,804 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 22:03:08,888 INFO L225 Difference]: With dead ends: 42853 [2024-11-19 22:03:08,889 INFO L226 Difference]: Without dead ends: 28921 [2024-11-19 22:03:08,917 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-11-19 22:03:08,917 INFO L432 NwaCegarLoop]: 178 mSDtfsCounter, 947 mSDsluCounter, 628 mSDsCounter, 0 mSdLazyCounter, 1028 mSolverCounterSat, 306 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 962 SdHoareTripleChecker+Valid, 806 SdHoareTripleChecker+Invalid, 1334 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 306 IncrementalHoareTripleChecker+Valid, 1028 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-19 22:03:08,918 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [962 Valid, 806 Invalid, 1334 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [306 Valid, 1028 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-19 22:03:08,936 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28921 states. [2024-11-19 22:03:09,906 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28921 to 28820. [2024-11-19 22:03:09,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28820 states, 23996 states have (on average 1.585222537089515) internal successors, (38039), 24003 states have internal predecessors, (38039), 4802 states have call successors, (4802), 17 states have call predecessors, (4802), 21 states have return successors, (5415), 4801 states have call predecessors, (5415), 4801 states have call successors, (5415) [2024-11-19 22:03:10,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28820 states to 28820 states and 48256 transitions. [2024-11-19 22:03:10,044 INFO L78 Accepts]: Start accepts. Automaton has 28820 states and 48256 transitions. Word has length 116 [2024-11-19 22:03:10,044 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 22:03:10,044 INFO L471 AbstractCegarLoop]: Abstraction has 28820 states and 48256 transitions. [2024-11-19 22:03:10,045 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.285714285714286) internal successors, (79), 3 states have internal predecessors, (79), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-19 22:03:10,045 INFO L276 IsEmpty]: Start isEmpty. Operand 28820 states and 48256 transitions. [2024-11-19 22:03:10,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2024-11-19 22:03:10,062 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 22:03:10,062 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 22:03:10,062 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-19 22:03:10,062 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 22:03:10,063 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 22:03:10,063 INFO L85 PathProgramCache]: Analyzing trace with hash 538828877, now seen corresponding path program 1 times [2024-11-19 22:03:10,063 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 22:03:10,063 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [201150725] [2024-11-19 22:03:10,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 22:03:10,064 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 22:03:10,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:03:10,124 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-19 22:03:10,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:03:10,134 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-19 22:03:10,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:03:10,138 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-19 22:03:10,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:03:10,140 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-19 22:03:10,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:03:10,143 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-19 22:03:10,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:03:10,146 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-19 22:03:10,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:03:10,154 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-19 22:03:10,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:03:10,163 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-11-19 22:03:10,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:03:10,165 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-19 22:03:10,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:03:10,167 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-11-19 22:03:10,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:03:10,168 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-11-19 22:03:10,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:03:10,170 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-19 22:03:10,170 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 22:03:10,171 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [201150725] [2024-11-19 22:03:10,171 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [201150725] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 22:03:10,171 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 22:03:10,171 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-19 22:03:10,171 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [755218218] [2024-11-19 22:03:10,171 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 22:03:10,172 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-19 22:03:10,173 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 22:03:10,173 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-19 22:03:10,173 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-19 22:03:10,174 INFO L87 Difference]: Start difference. First operand 28820 states and 48256 transitions. Second operand has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 3 states have internal predecessors, (80), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-19 22:03:12,196 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 22:03:12,197 INFO L93 Difference]: Finished difference Result 78615 states and 133774 transitions. [2024-11-19 22:03:12,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-19 22:03:12,197 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 3 states have internal predecessors, (80), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 117 [2024-11-19 22:03:12,197 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 22:03:12,364 INFO L225 Difference]: With dead ends: 78615 [2024-11-19 22:03:12,364 INFO L226 Difference]: Without dead ends: 52800 [2024-11-19 22:03:12,444 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-11-19 22:03:12,444 INFO L432 NwaCegarLoop]: 181 mSDtfsCounter, 945 mSDsluCounter, 636 mSDsCounter, 0 mSdLazyCounter, 1022 mSolverCounterSat, 307 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 960 SdHoareTripleChecker+Valid, 817 SdHoareTripleChecker+Invalid, 1329 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 307 IncrementalHoareTripleChecker+Valid, 1022 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-19 22:03:12,445 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [960 Valid, 817 Invalid, 1329 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [307 Valid, 1022 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-19 22:03:12,478 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52800 states. [2024-11-19 22:03:14,263 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52800 to 52699. [2024-11-19 22:03:14,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52699 states, 44160 states have (on average 1.579302536231884) internal successors, (69742), 44167 states have internal predecessors, (69742), 8517 states have call successors, (8517), 17 states have call predecessors, (8517), 21 states have return successors, (9662), 8516 states have call predecessors, (9662), 8516 states have call successors, (9662) [2024-11-19 22:03:14,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52699 states to 52699 states and 87921 transitions. [2024-11-19 22:03:14,462 INFO L78 Accepts]: Start accepts. Automaton has 52699 states and 87921 transitions. Word has length 117 [2024-11-19 22:03:14,463 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 22:03:14,463 INFO L471 AbstractCegarLoop]: Abstraction has 52699 states and 87921 transitions. [2024-11-19 22:03:14,463 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 3 states have internal predecessors, (80), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-19 22:03:14,463 INFO L276 IsEmpty]: Start isEmpty. Operand 52699 states and 87921 transitions. [2024-11-19 22:03:14,478 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2024-11-19 22:03:14,479 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 22:03:14,479 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 22:03:14,479 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-19 22:03:14,479 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 22:03:14,480 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 22:03:14,480 INFO L85 PathProgramCache]: Analyzing trace with hash 736585342, now seen corresponding path program 1 times [2024-11-19 22:03:14,480 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 22:03:14,480 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [104964828] [2024-11-19 22:03:14,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 22:03:14,480 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 22:03:14,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:03:14,520 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-19 22:03:14,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:03:14,528 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-19 22:03:14,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:03:14,531 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-19 22:03:14,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:03:14,533 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-19 22:03:14,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:03:14,535 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-19 22:03:14,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:03:14,538 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-19 22:03:14,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:03:14,545 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-19 22:03:14,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:03:14,555 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-11-19 22:03:14,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:03:14,556 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-11-19 22:03:14,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:03:14,558 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-11-19 22:03:14,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:03:14,559 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-11-19 22:03:14,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:03:14,561 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-19 22:03:14,561 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 22:03:14,561 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [104964828] [2024-11-19 22:03:14,561 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [104964828] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 22:03:14,561 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 22:03:14,561 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-19 22:03:14,561 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1178059940] [2024-11-19 22:03:14,561 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 22:03:14,561 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-19 22:03:14,561 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 22:03:14,562 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-19 22:03:14,562 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-19 22:03:14,562 INFO L87 Difference]: Start difference. First operand 52699 states and 87921 transitions. Second operand has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 3 states have internal predecessors, (81), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-19 22:03:17,400 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 22:03:17,400 INFO L93 Difference]: Finished difference Result 98386 states and 167704 transitions. [2024-11-19 22:03:17,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-19 22:03:17,401 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 3 states have internal predecessors, (81), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 118 [2024-11-19 22:03:17,401 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 22:03:17,743 INFO L225 Difference]: With dead ends: 98386 [2024-11-19 22:03:17,743 INFO L226 Difference]: Without dead ends: 98259 [2024-11-19 22:03:18,002 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-11-19 22:03:18,003 INFO L432 NwaCegarLoop]: 180 mSDtfsCounter, 940 mSDsluCounter, 635 mSDsCounter, 0 mSdLazyCounter, 1020 mSolverCounterSat, 302 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 954 SdHoareTripleChecker+Valid, 815 SdHoareTripleChecker+Invalid, 1322 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 302 IncrementalHoareTripleChecker+Valid, 1020 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-19 22:03:18,004 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [954 Valid, 815 Invalid, 1322 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [302 Valid, 1020 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-19 22:03:18,058 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98259 states. [2024-11-19 22:03:20,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98259 to 98158. [2024-11-19 22:03:20,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 98158 states, 82820 states have (on average 1.5719512195121952) internal successors, (130189), 82827 states have internal predecessors, (130189), 15316 states have call successors, (15316), 17 states have call predecessors, (15316), 21 states have return successors, (17507), 15315 states have call predecessors, (17507), 15315 states have call successors, (17507) [2024-11-19 22:03:21,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98158 states to 98158 states and 163012 transitions. [2024-11-19 22:03:21,190 INFO L78 Accepts]: Start accepts. Automaton has 98158 states and 163012 transitions. Word has length 118 [2024-11-19 22:03:21,191 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 22:03:21,191 INFO L471 AbstractCegarLoop]: Abstraction has 98158 states and 163012 transitions. [2024-11-19 22:03:21,191 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 3 states have internal predecessors, (81), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-19 22:03:21,191 INFO L276 IsEmpty]: Start isEmpty. Operand 98158 states and 163012 transitions. [2024-11-19 22:03:21,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2024-11-19 22:03:21,545 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 22:03:21,545 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 22:03:21,545 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-19 22:03:21,545 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 22:03:21,545 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 22:03:21,546 INFO L85 PathProgramCache]: Analyzing trace with hash 519306732, now seen corresponding path program 1 times [2024-11-19 22:03:21,546 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 22:03:21,546 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [445872650] [2024-11-19 22:03:21,546 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 22:03:21,546 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 22:03:21,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:03:21,807 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-19 22:03:21,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:03:21,820 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-19 22:03:21,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:03:21,823 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-19 22:03:21,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:03:21,826 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-19 22:03:21,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:03:21,828 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-19 22:03:21,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:03:21,830 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-19 22:03:21,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:03:21,842 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-19 22:03:21,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:03:21,854 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-19 22:03:21,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:03:21,877 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-11-19 22:03:21,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:03:21,892 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-11-19 22:03:21,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:03:21,894 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-11-19 22:03:21,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:03:21,895 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-19 22:03:21,895 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 22:03:21,896 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [445872650] [2024-11-19 22:03:21,896 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [445872650] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 22:03:21,896 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 22:03:21,896 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2024-11-19 22:03:21,896 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1029600611] [2024-11-19 22:03:21,896 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 22:03:21,897 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-19 22:03:21,897 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 22:03:21,897 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-19 22:03:21,897 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2024-11-19 22:03:21,898 INFO L87 Difference]: Start difference. First operand 98158 states and 163012 transitions. Second operand has 16 states, 15 states have (on average 5.466666666666667) internal successors, (82), 10 states have internal predecessors, (82), 5 states have call successors, (13), 7 states have call predecessors, (13), 3 states have return successors, (11), 6 states have call predecessors, (11), 5 states have call successors, (11) [2024-11-19 22:03:29,023 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 22:03:29,024 INFO L93 Difference]: Finished difference Result 195860 states and 337218 transitions. [2024-11-19 22:03:29,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2024-11-19 22:03:29,024 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 5.466666666666667) internal successors, (82), 10 states have internal predecessors, (82), 5 states have call successors, (13), 7 states have call predecessors, (13), 3 states have return successors, (11), 6 states have call predecessors, (11), 5 states have call successors, (11) Word has length 119 [2024-11-19 22:03:29,024 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 22:03:30,024 INFO L225 Difference]: With dead ends: 195860 [2024-11-19 22:03:30,024 INFO L226 Difference]: Without dead ends: 195739 [2024-11-19 22:03:30,091 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 955 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=715, Invalid=2825, Unknown=0, NotChecked=0, Total=3540 [2024-11-19 22:03:30,091 INFO L432 NwaCegarLoop]: 232 mSDtfsCounter, 3508 mSDsluCounter, 2381 mSDsCounter, 0 mSdLazyCounter, 5062 mSolverCounterSat, 975 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3508 SdHoareTripleChecker+Valid, 2613 SdHoareTripleChecker+Invalid, 6037 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 975 IncrementalHoareTripleChecker+Valid, 5062 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2024-11-19 22:03:30,091 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3508 Valid, 2613 Invalid, 6037 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [975 Valid, 5062 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2024-11-19 22:03:30,192 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 195739 states. [2024-11-19 22:03:36,904 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 195739 to 195457. [2024-11-19 22:03:37,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 195457 states, 164987 states have (on average 1.5728330110857218) internal successors, (259497), 164890 states have internal predecessors, (259497), 30417 states have call successors, (30417), 44 states have call predecessors, (30417), 52 states have return successors, (38073), 30528 states have call predecessors, (38073), 30414 states have call successors, (38073) [2024-11-19 22:03:37,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 195457 states to 195457 states and 327987 transitions. [2024-11-19 22:03:37,735 INFO L78 Accepts]: Start accepts. Automaton has 195457 states and 327987 transitions. Word has length 119 [2024-11-19 22:03:37,736 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 22:03:37,736 INFO L471 AbstractCegarLoop]: Abstraction has 195457 states and 327987 transitions. [2024-11-19 22:03:37,736 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 5.466666666666667) internal successors, (82), 10 states have internal predecessors, (82), 5 states have call successors, (13), 7 states have call predecessors, (13), 3 states have return successors, (11), 6 states have call predecessors, (11), 5 states have call successors, (11) [2024-11-19 22:03:37,736 INFO L276 IsEmpty]: Start isEmpty. Operand 195457 states and 327987 transitions. [2024-11-19 22:03:37,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2024-11-19 22:03:37,761 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 22:03:37,761 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 22:03:37,762 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-19 22:03:37,762 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 22:03:37,762 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 22:03:37,762 INFO L85 PathProgramCache]: Analyzing trace with hash -1953120415, now seen corresponding path program 1 times [2024-11-19 22:03:37,762 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 22:03:37,762 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [510844269] [2024-11-19 22:03:37,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 22:03:37,762 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 22:03:37,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:03:37,863 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-19 22:03:37,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:03:37,876 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-19 22:03:37,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:03:37,879 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-19 22:03:37,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:03:37,883 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-19 22:03:37,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:03:37,886 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-19 22:03:38,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:03:38,251 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-19 22:03:38,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:03:38,262 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-19 22:03:38,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:03:38,273 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-19 22:03:38,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:03:38,276 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-11-19 22:03:38,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:03:38,278 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-19 22:03:38,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:03:38,279 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-11-19 22:03:38,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:03:38,280 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-19 22:03:38,281 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 22:03:38,281 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [510844269] [2024-11-19 22:03:38,281 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [510844269] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 22:03:38,281 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 22:03:38,281 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-19 22:03:38,281 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [858911346] [2024-11-19 22:03:38,281 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 22:03:38,282 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-19 22:03:38,282 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 22:03:38,283 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-19 22:03:38,283 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2024-11-19 22:03:38,283 INFO L87 Difference]: Start difference. First operand 195457 states and 327987 transitions. Second operand has 12 states, 12 states have (on average 6.916666666666667) internal successors, (83), 6 states have internal predecessors, (83), 4 states have call successors, (13), 7 states have call predecessors, (13), 1 states have return successors, (11), 4 states have call predecessors, (11), 4 states have call successors, (11) [2024-11-19 22:03:43,940 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 22:03:43,940 INFO L93 Difference]: Finished difference Result 196468 states and 335948 transitions. [2024-11-19 22:03:43,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-19 22:03:43,941 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 6.916666666666667) internal successors, (83), 6 states have internal predecessors, (83), 4 states have call successors, (13), 7 states have call predecessors, (13), 1 states have return successors, (11), 4 states have call predecessors, (11), 4 states have call successors, (11) Word has length 120 [2024-11-19 22:03:43,941 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 22:03:44,717 INFO L225 Difference]: With dead ends: 196468 [2024-11-19 22:03:44,717 INFO L226 Difference]: Without dead ends: 195791 [2024-11-19 22:03:44,788 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 141 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=211, Invalid=601, Unknown=0, NotChecked=0, Total=812 [2024-11-19 22:03:44,789 INFO L432 NwaCegarLoop]: 168 mSDtfsCounter, 1816 mSDsluCounter, 1182 mSDsCounter, 0 mSdLazyCounter, 2373 mSolverCounterSat, 475 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1831 SdHoareTripleChecker+Valid, 1350 SdHoareTripleChecker+Invalid, 2848 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 475 IncrementalHoareTripleChecker+Valid, 2373 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-19 22:03:44,789 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1831 Valid, 1350 Invalid, 2848 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [475 Valid, 2373 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-19 22:03:44,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 195791 states.