./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/product-lines/email_spec7_product24.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version c7c6ca5d Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/product-lines/email_spec7_product24.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 312fc8529e2c53d6a3be2cb9c54168ebb93fc3f65452574800e27c42fdf03e19 --- Real Ultimate output --- This is Ultimate 0.2.5-?-c7c6ca5-m [2024-11-08 15:07:48,383 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 15:07:48,445 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-08 15:07:48,449 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 15:07:48,450 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-08 15:07:48,467 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 15:07:48,469 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-08 15:07:48,469 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-08 15:07:48,470 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-08 15:07:48,470 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-08 15:07:48,470 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 15:07:48,470 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-08 15:07:48,470 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 15:07:48,471 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 15:07:48,471 INFO L153 SettingsManager]: * Use SBE=true [2024-11-08 15:07:48,471 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 15:07:48,471 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 15:07:48,472 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-08 15:07:48,472 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-08 15:07:48,472 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-08 15:07:48,477 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 15:07:48,478 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 15:07:48,478 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 15:07:48,478 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 15:07:48,478 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 15:07:48,478 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-08 15:07:48,478 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 15:07:48,479 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 15:07:48,479 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 15:07:48,479 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-08 15:07:48,479 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-08 15:07:48,479 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-08 15:07:48,479 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 15:07:48,479 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 15:07:48,479 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 15:07:48,480 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 15:07:48,480 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-08 15:07:48,480 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-08 15:07:48,480 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-08 15:07:48,480 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-08 15:07:48,480 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-08 15:07:48,481 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-08 15:07:48,481 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 312fc8529e2c53d6a3be2cb9c54168ebb93fc3f65452574800e27c42fdf03e19 [2024-11-08 15:07:48,671 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 15:07:48,692 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 15:07:48,695 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 15:07:48,697 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 15:07:48,697 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 15:07:48,698 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/email_spec7_product24.cil.c [2024-11-08 15:07:49,920 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 15:07:50,159 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 15:07:50,160 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/email_spec7_product24.cil.c [2024-11-08 15:07:50,174 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0e5127925/6e1f48db4fa84cdb99fc059dedff2250/FLAG090215054 [2024-11-08 15:07:50,185 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0e5127925/6e1f48db4fa84cdb99fc059dedff2250 [2024-11-08 15:07:50,187 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 15:07:50,188 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 15:07:50,189 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 15:07:50,189 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 15:07:50,192 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 15:07:50,193 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 03:07:50" (1/1) ... [2024-11-08 15:07:50,194 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@9cd6e2c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 03:07:50, skipping insertion in model container [2024-11-08 15:07:50,194 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 03:07:50" (1/1) ... [2024-11-08 15:07:50,237 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 15:07:50,622 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_spec7_product24.cil.c[62782,62795] [2024-11-08 15:07:50,628 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 15:07:50,639 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 15:07:50,646 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [48] [2024-11-08 15:07:50,647 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [277] [2024-11-08 15:07:50,647 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"EmailLib.i","") [643] [2024-11-08 15:07:50,647 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [1055] [2024-11-08 15:07:50,647 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"ClientLib.i","") [1371] [2024-11-08 15:07:50,647 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Client.i","") [2442] [2024-11-08 15:07:50,647 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"EncryptVerify_spec.i","") [2764] [2024-11-08 15:07:50,648 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Email.i","") [2783] [2024-11-08 15:07:50,648 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Util.i","") [2879] [2024-11-08 15:07:50,648 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [2896] [2024-11-08 15:07:50,649 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [2931] [2024-11-08 15:07:50,705 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_spec7_product24.cil.c[62782,62795] [2024-11-08 15:07:50,706 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 15:07:50,731 INFO L204 MainTranslator]: Completed translation [2024-11-08 15:07:50,732 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 03:07:50 WrapperNode [2024-11-08 15:07:50,732 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 15:07:50,733 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 15:07:50,733 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 15:07:50,733 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 15:07:50,737 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 03:07:50" (1/1) ... [2024-11-08 15:07:50,764 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 03:07:50" (1/1) ... [2024-11-08 15:07:50,800 INFO L138 Inliner]: procedures = 130, calls = 192, calls flagged for inlining = 64, calls inlined = 59, statements flattened = 1053 [2024-11-08 15:07:50,804 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 15:07:50,805 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 15:07:50,805 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 15:07:50,805 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 15:07:50,813 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 03:07:50" (1/1) ... [2024-11-08 15:07:50,813 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 03:07:50" (1/1) ... [2024-11-08 15:07:50,818 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 03:07:50" (1/1) ... [2024-11-08 15:07:50,840 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]. [2024-11-08 15:07:50,840 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 03:07:50" (1/1) ... [2024-11-08 15:07:50,840 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 03:07:50" (1/1) ... [2024-11-08 15:07:50,854 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 03:07:50" (1/1) ... [2024-11-08 15:07:50,863 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 03:07:50" (1/1) ... [2024-11-08 15:07:50,871 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 03:07:50" (1/1) ... [2024-11-08 15:07:50,878 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 03:07:50" (1/1) ... [2024-11-08 15:07:50,890 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 15:07:50,894 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 15:07:50,894 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 15:07:50,894 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 15:07:50,894 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 03:07:50" (1/1) ... [2024-11-08 15:07:50,903 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 15:07:50,914 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 15:07:50,932 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) [2024-11-08 15:07:50,934 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 [2024-11-08 15:07:50,971 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2024-11-08 15:07:50,971 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2024-11-08 15:07:50,971 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2024-11-08 15:07:50,971 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2024-11-08 15:07:50,971 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2024-11-08 15:07:50,971 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2024-11-08 15:07:50,971 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2024-11-08 15:07:50,972 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2024-11-08 15:07:50,972 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2024-11-08 15:07:50,972 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2024-11-08 15:07:50,972 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2024-11-08 15:07:50,972 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2024-11-08 15:07:50,973 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2024-11-08 15:07:50,973 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2024-11-08 15:07:50,973 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2024-11-08 15:07:50,973 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2024-11-08 15:07:50,973 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2024-11-08 15:07:50,974 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2024-11-08 15:07:50,974 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 15:07:50,974 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2024-11-08 15:07:50,975 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2024-11-08 15:07:50,975 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2024-11-08 15:07:50,975 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2024-11-08 15:07:50,975 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2024-11-08 15:07:50,975 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2024-11-08 15:07:50,975 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2024-11-08 15:07:50,975 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2024-11-08 15:07:50,975 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2024-11-08 15:07:50,975 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2024-11-08 15:07:50,975 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2024-11-08 15:07:50,976 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2024-11-08 15:07:50,976 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2024-11-08 15:07:50,976 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2024-11-08 15:07:50,976 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-08 15:07:50,976 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-08 15:07:50,976 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-08 15:07:50,977 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-08 15:07:50,978 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2024-11-08 15:07:50,978 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2024-11-08 15:07:50,978 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 15:07:50,978 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 15:07:51,177 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 15:07:51,179 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 15:07:51,815 INFO L? ?]: Removed 457 outVars from TransFormulas that were not future-live. [2024-11-08 15:07:51,815 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 15:07:51,834 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 15:07:51,835 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-08 15:07:51,835 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 03:07:51 BoogieIcfgContainer [2024-11-08 15:07:51,836 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 15:07:51,837 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-08 15:07:51,837 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-08 15:07:51,840 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-08 15:07:51,840 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 03:07:50" (1/3) ... [2024-11-08 15:07:51,841 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@266957b3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 03:07:51, skipping insertion in model container [2024-11-08 15:07:51,841 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 03:07:50" (2/3) ... [2024-11-08 15:07:51,841 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@266957b3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 03:07:51, skipping insertion in model container [2024-11-08 15:07:51,841 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 03:07:51" (3/3) ... [2024-11-08 15:07:51,842 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec7_product24.cil.c [2024-11-08 15:07:51,854 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-08 15:07:51,855 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-08 15:07:51,912 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-08 15:07:51,917 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;@2bf788a4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 15:07:51,918 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-08 15:07:51,923 INFO L276 IsEmpty]: Start isEmpty. Operand has 320 states, 255 states have (on average 1.5333333333333334) internal successors, (391), 257 states have internal predecessors, (391), 46 states have call successors, (46), 17 states have call predecessors, (46), 17 states have return successors, (46), 46 states have call predecessors, (46), 46 states have call successors, (46) [2024-11-08 15:07:51,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2024-11-08 15:07:51,935 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:07:51,936 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] [2024-11-08 15:07:51,936 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:07:51,940 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:07:51,940 INFO L85 PathProgramCache]: Analyzing trace with hash 218059154, now seen corresponding path program 1 times [2024-11-08 15:07:51,948 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:07:51,949 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2022565901] [2024-11-08 15:07:51,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:07:51,949 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:07:52,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:07:52,411 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-08 15:07:52,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:07:52,426 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 15:07:52,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:07:52,433 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-08 15:07:52,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:07:52,468 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-08 15:07:52,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:07:52,474 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-08 15:07:52,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:07:52,480 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-08 15:07:52,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:07:52,494 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-08 15:07:52,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:07:52,508 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-11-08 15:07:52,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:07:52,511 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-11-08 15:07:52,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:07:52,517 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-11-08 15:07:52,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:07:52,521 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-11-08 15:07:52,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:07:52,525 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-11-08 15:07:52,525 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:07:52,526 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2022565901] [2024-11-08 15:07:52,526 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2022565901] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 15:07:52,527 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [657452275] [2024-11-08 15:07:52,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:07:52,527 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 15:07:52,527 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 15:07:52,529 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) [2024-11-08 15:07:52,530 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-08 15:07:52,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:07:52,763 INFO L255 TraceCheckSpWp]: Trace formula consists of 931 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-08 15:07:52,769 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 15:07:52,788 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-08 15:07:52,789 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 15:07:52,789 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [657452275] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:07:52,790 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 15:07:52,790 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [9] total 9 [2024-11-08 15:07:52,791 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [28327602] [2024-11-08 15:07:52,792 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:07:52,795 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-08 15:07:52,796 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:07:52,812 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-08 15:07:52,812 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-08 15:07:52,815 INFO L87 Difference]: Start difference. First operand has 320 states, 255 states have (on average 1.5333333333333334) internal successors, (391), 257 states have internal predecessors, (391), 46 states have call successors, (46), 17 states have call predecessors, (46), 17 states have return successors, (46), 46 states have call predecessors, (46), 46 states have call successors, (46) Second operand has 2 states, 2 states have (on average 23.5) internal successors, (47), 2 states have internal predecessors, (47), 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) [2024-11-08 15:07:52,852 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:07:52,852 INFO L93 Difference]: Finished difference Result 481 states and 712 transitions. [2024-11-08 15:07:52,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-08 15:07:52,854 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 23.5) internal successors, (47), 2 states have internal predecessors, (47), 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 86 [2024-11-08 15:07:52,857 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:07:52,865 INFO L225 Difference]: With dead ends: 481 [2024-11-08 15:07:52,865 INFO L226 Difference]: Without dead ends: 313 [2024-11-08 15:07:52,869 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 104 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-08 15:07:52,871 INFO L432 NwaCegarLoop]: 479 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, 479 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 [2024-11-08 15:07:52,871 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 479 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 15:07:52,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 313 states. [2024-11-08 15:07:52,915 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 313 to 313. [2024-11-08 15:07:52,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 313 states, 249 states have (on average 1.5261044176706828) internal successors, (380), 250 states have internal predecessors, (380), 46 states have call successors, (46), 17 states have call predecessors, (46), 17 states have return successors, (45), 45 states have call predecessors, (45), 45 states have call successors, (45) [2024-11-08 15:07:52,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 313 states to 313 states and 471 transitions. [2024-11-08 15:07:52,921 INFO L78 Accepts]: Start accepts. Automaton has 313 states and 471 transitions. Word has length 86 [2024-11-08 15:07:52,922 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:07:52,922 INFO L471 AbstractCegarLoop]: Abstraction has 313 states and 471 transitions. [2024-11-08 15:07:52,923 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 23.5) internal successors, (47), 2 states have internal predecessors, (47), 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) [2024-11-08 15:07:52,923 INFO L276 IsEmpty]: Start isEmpty. Operand 313 states and 471 transitions. [2024-11-08 15:07:52,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2024-11-08 15:07:52,927 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:07:52,927 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] [2024-11-08 15:07:52,941 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-08 15:07:53,128 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 [2024-11-08 15:07:53,128 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:07:53,128 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:07:53,129 INFO L85 PathProgramCache]: Analyzing trace with hash -2127214917, now seen corresponding path program 1 times [2024-11-08 15:07:53,129 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:07:53,129 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [157390455] [2024-11-08 15:07:53,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:07:53,129 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:07:53,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:07:53,316 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-08 15:07:53,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:07:53,328 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 15:07:53,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:07:53,332 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-08 15:07:53,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:07:53,353 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-08 15:07:53,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:07:53,356 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-08 15:07:53,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:07:53,360 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-08 15:07:53,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:07:53,372 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-08 15:07:53,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:07:53,384 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-08 15:07:53,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:07:53,386 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-08 15:07:53,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:07:53,389 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-11-08 15:07:53,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:07:53,392 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-11-08 15:07:53,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:07:53,394 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-11-08 15:07:53,394 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:07:53,394 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [157390455] [2024-11-08 15:07:53,394 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [157390455] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 15:07:53,394 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1522642718] [2024-11-08 15:07:53,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:07:53,395 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 15:07:53,395 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 15:07:53,397 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) [2024-11-08 15:07:53,399 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-08 15:07:53,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:07:53,628 INFO L255 TraceCheckSpWp]: Trace formula consists of 932 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-08 15:07:53,631 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 15:07:53,655 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-08 15:07:53,656 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 15:07:53,656 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1522642718] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:07:53,656 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 15:07:53,656 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2024-11-08 15:07:53,656 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [476218219] [2024-11-08 15:07:53,656 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:07:53,657 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 15:07:53,657 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:07:53,658 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 15:07:53,658 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-11-08 15:07:53,658 INFO L87 Difference]: Start difference. First operand 313 states and 471 transitions. Second operand has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 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) [2024-11-08 15:07:53,693 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:07:53,695 INFO L93 Difference]: Finished difference Result 471 states and 693 transitions. [2024-11-08 15:07:53,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 15:07:53,695 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 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 87 [2024-11-08 15:07:53,696 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:07:53,698 INFO L225 Difference]: With dead ends: 471 [2024-11-08 15:07:53,698 INFO L226 Difference]: Without dead ends: 316 [2024-11-08 15:07:53,699 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 104 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-11-08 15:07:53,702 INFO L432 NwaCegarLoop]: 469 mSDtfsCounter, 1 mSDsluCounter, 467 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 936 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 [2024-11-08 15:07:53,703 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 936 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 15:07:53,704 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 316 states. [2024-11-08 15:07:53,722 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 316 to 315. [2024-11-08 15:07:53,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 315 states, 251 states have (on average 1.5219123505976095) internal successors, (382), 252 states have internal predecessors, (382), 46 states have call successors, (46), 17 states have call predecessors, (46), 17 states have return successors, (45), 45 states have call predecessors, (45), 45 states have call successors, (45) [2024-11-08 15:07:53,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 315 states to 315 states and 473 transitions. [2024-11-08 15:07:53,726 INFO L78 Accepts]: Start accepts. Automaton has 315 states and 473 transitions. Word has length 87 [2024-11-08 15:07:53,727 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:07:53,727 INFO L471 AbstractCegarLoop]: Abstraction has 315 states and 473 transitions. [2024-11-08 15:07:53,727 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 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) [2024-11-08 15:07:53,727 INFO L276 IsEmpty]: Start isEmpty. Operand 315 states and 473 transitions. [2024-11-08 15:07:53,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2024-11-08 15:07:53,729 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:07:53,729 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] [2024-11-08 15:07:53,745 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-08 15:07:53,930 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 [2024-11-08 15:07:53,930 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:07:53,930 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:07:53,931 INFO L85 PathProgramCache]: Analyzing trace with hash 1198059665, now seen corresponding path program 1 times [2024-11-08 15:07:53,931 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:07:53,931 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [689675541] [2024-11-08 15:07:53,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:07:53,931 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:07:53,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:07:54,062 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-08 15:07:54,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:07:54,072 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 15:07:54,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:07:54,075 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-08 15:07:54,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:07:54,090 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-08 15:07:54,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:07:54,094 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-08 15:07:54,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:07:54,098 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-08 15:07:54,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:07:54,106 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-11-08 15:07:54,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:07:54,116 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-11-08 15:07:54,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:07:54,118 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-08 15:07:54,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:07:54,120 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-08 15:07:54,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:07:54,122 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-08 15:07:54,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:07:54,123 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-08 15:07:54,125 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:07:54,125 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [689675541] [2024-11-08 15:07:54,125 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [689675541] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 15:07:54,125 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [6209540] [2024-11-08 15:07:54,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:07:54,125 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 15:07:54,126 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 15:07:54,127 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) [2024-11-08 15:07:54,128 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-08 15:07:54,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:07:54,340 INFO L255 TraceCheckSpWp]: Trace formula consists of 957 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-08 15:07:54,343 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 15:07:54,364 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-08 15:07:54,365 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 15:07:54,365 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [6209540] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:07:54,365 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 15:07:54,365 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2024-11-08 15:07:54,365 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1837720375] [2024-11-08 15:07:54,365 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:07:54,365 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 15:07:54,365 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:07:54,366 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 15:07:54,366 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-11-08 15:07:54,366 INFO L87 Difference]: Start difference. First operand 315 states and 473 transitions. Second operand has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 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) [2024-11-08 15:07:54,386 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:07:54,386 INFO L93 Difference]: Finished difference Result 665 states and 1013 transitions. [2024-11-08 15:07:54,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 15:07:54,387 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 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 96 [2024-11-08 15:07:54,387 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:07:54,389 INFO L225 Difference]: With dead ends: 665 [2024-11-08 15:07:54,389 INFO L226 Difference]: Without dead ends: 377 [2024-11-08 15:07:54,390 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 113 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-11-08 15:07:54,391 INFO L432 NwaCegarLoop]: 482 mSDtfsCounter, 115 mSDsluCounter, 425 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 130 SdHoareTripleChecker+Valid, 907 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 [2024-11-08 15:07:54,391 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [130 Valid, 907 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 15:07:54,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 377 states. [2024-11-08 15:07:54,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 377 to 369. [2024-11-08 15:07:54,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 369 states, 294 states have (on average 1.5374149659863945) internal successors, (452), 295 states have internal predecessors, (452), 57 states have call successors, (57), 17 states have call predecessors, (57), 17 states have return successors, (56), 56 states have call predecessors, (56), 56 states have call successors, (56) [2024-11-08 15:07:54,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 369 states to 369 states and 565 transitions. [2024-11-08 15:07:54,404 INFO L78 Accepts]: Start accepts. Automaton has 369 states and 565 transitions. Word has length 96 [2024-11-08 15:07:54,405 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:07:54,405 INFO L471 AbstractCegarLoop]: Abstraction has 369 states and 565 transitions. [2024-11-08 15:07:54,405 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 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) [2024-11-08 15:07:54,405 INFO L276 IsEmpty]: Start isEmpty. Operand 369 states and 565 transitions. [2024-11-08 15:07:54,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2024-11-08 15:07:54,406 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:07:54,406 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] [2024-11-08 15:07:54,420 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-08 15:07:54,607 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 [2024-11-08 15:07:54,608 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:07:54,608 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:07:54,608 INFO L85 PathProgramCache]: Analyzing trace with hash -230669554, now seen corresponding path program 1 times [2024-11-08 15:07:54,608 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:07:54,610 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [751658561] [2024-11-08 15:07:54,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:07:54,610 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:07:54,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:07:54,743 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-08 15:07:54,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:07:54,756 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 15:07:54,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:07:54,760 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-08 15:07:54,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:07:54,781 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-08 15:07:54,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:07:54,785 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-08 15:07:54,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:07:54,788 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-08 15:07:54,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:07:54,801 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-11-08 15:07:54,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:07:54,814 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-11-08 15:07:54,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:07:54,817 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-08 15:07:54,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:07:54,820 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-08 15:07:54,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:07:54,823 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-11-08 15:07:54,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:07:54,826 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-08 15:07:54,827 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:07:54,827 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [751658561] [2024-11-08 15:07:54,827 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [751658561] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 15:07:54,827 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1542601995] [2024-11-08 15:07:54,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:07:54,828 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 15:07:54,829 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 15:07:54,832 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) [2024-11-08 15:07:54,833 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-08 15:07:55,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:07:55,077 INFO L255 TraceCheckSpWp]: Trace formula consists of 962 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-08 15:07:55,083 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 15:07:55,142 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-08 15:07:55,142 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 15:07:55,142 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1542601995] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:07:55,142 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 15:07:55,143 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 12 [2024-11-08 15:07:55,143 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1034733620] [2024-11-08 15:07:55,143 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:07:55,143 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 15:07:55,144 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:07:55,144 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 15:07:55,144 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2024-11-08 15:07:55,145 INFO L87 Difference]: Start difference. First operand 369 states and 565 transitions. Second operand has 5 states, 4 states have (on average 16.5) internal successors, (66), 5 states have internal predecessors, (66), 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) [2024-11-08 15:07:55,197 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:07:55,199 INFO L93 Difference]: Finished difference Result 729 states and 1120 transitions. [2024-11-08 15:07:55,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 15:07:55,200 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 16.5) internal successors, (66), 5 states have internal predecessors, (66), 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 97 [2024-11-08 15:07:55,200 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:07:55,203 INFO L225 Difference]: With dead ends: 729 [2024-11-08 15:07:55,204 INFO L226 Difference]: Without dead ends: 371 [2024-11-08 15:07:55,206 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 112 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2024-11-08 15:07:55,206 INFO L432 NwaCegarLoop]: 463 mSDtfsCounter, 2 mSDsluCounter, 1378 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 1841 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 [2024-11-08 15:07:55,207 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 1841 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 15:07:55,207 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 371 states. [2024-11-08 15:07:55,217 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 371 to 371. [2024-11-08 15:07:55,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 371 states, 295 states have (on average 1.535593220338983) internal successors, (453), 297 states have internal predecessors, (453), 57 states have call successors, (57), 17 states have call predecessors, (57), 18 states have return successors, (58), 56 states have call predecessors, (58), 56 states have call successors, (58) [2024-11-08 15:07:55,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 371 states to 371 states and 568 transitions. [2024-11-08 15:07:55,223 INFO L78 Accepts]: Start accepts. Automaton has 371 states and 568 transitions. Word has length 97 [2024-11-08 15:07:55,223 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:07:55,223 INFO L471 AbstractCegarLoop]: Abstraction has 371 states and 568 transitions. [2024-11-08 15:07:55,224 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 16.5) internal successors, (66), 5 states have internal predecessors, (66), 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) [2024-11-08 15:07:55,224 INFO L276 IsEmpty]: Start isEmpty. Operand 371 states and 568 transitions. [2024-11-08 15:07:55,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2024-11-08 15:07:55,229 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:07:55,229 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] [2024-11-08 15:07:55,246 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-08 15:07:55,429 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 [2024-11-08 15:07:55,430 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:07:55,430 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:07:55,430 INFO L85 PathProgramCache]: Analyzing trace with hash 1822377547, now seen corresponding path program 1 times [2024-11-08 15:07:55,430 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:07:55,430 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1852624739] [2024-11-08 15:07:55,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:07:55,430 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:07:55,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:07:55,506 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-08 15:07:55,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:07:55,515 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 15:07:55,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:07:55,517 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-08 15:07:55,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:07:55,534 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-08 15:07:55,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:07:55,553 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-11-08 15:07:55,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:07:55,556 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-11-08 15:07:55,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:07:55,566 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-08 15:07:55,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:07:55,577 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-11-08 15:07:55,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:07:55,579 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-11-08 15:07:55,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:07:55,581 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-11-08 15:07:55,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:07:55,582 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-11-08 15:07:55,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:07:55,584 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-08 15:07:55,584 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:07:55,584 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1852624739] [2024-11-08 15:07:55,584 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1852624739] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 15:07:55,584 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [542909723] [2024-11-08 15:07:55,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:07:55,584 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 15:07:55,584 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 15:07:55,586 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) [2024-11-08 15:07:55,587 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-08 15:07:55,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:07:55,809 INFO L255 TraceCheckSpWp]: Trace formula consists of 963 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-08 15:07:55,812 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 15:07:55,863 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-08 15:07:55,864 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 15:07:55,864 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [542909723] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:07:55,864 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 15:07:55,864 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [12] total 15 [2024-11-08 15:07:55,864 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1066657874] [2024-11-08 15:07:55,865 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:07:55,865 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 15:07:55,865 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:07:55,866 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 15:07:55,866 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=180, Unknown=0, NotChecked=0, Total=210 [2024-11-08 15:07:55,866 INFO L87 Difference]: Start difference. First operand 371 states and 568 transitions. Second operand has 5 states, 5 states have (on average 13.6) internal successors, (68), 5 states have internal predecessors, (68), 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) [2024-11-08 15:07:55,909 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:07:55,909 INFO L93 Difference]: Finished difference Result 731 states and 1125 transitions. [2024-11-08 15:07:55,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 15:07:55,910 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 5 states have internal predecessors, (68), 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 98 [2024-11-08 15:07:55,910 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:07:55,912 INFO L225 Difference]: With dead ends: 731 [2024-11-08 15:07:55,912 INFO L226 Difference]: Without dead ends: 373 [2024-11-08 15:07:55,912 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 125 GetRequests, 112 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=180, Unknown=0, NotChecked=0, Total=210 [2024-11-08 15:07:55,913 INFO L432 NwaCegarLoop]: 461 mSDtfsCounter, 2 mSDsluCounter, 1366 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 1827 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 [2024-11-08 15:07:55,913 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 1827 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 15:07:55,914 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 373 states. [2024-11-08 15:07:55,924 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 373 to 373. [2024-11-08 15:07:55,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 373 states, 296 states have (on average 1.5337837837837838) internal successors, (454), 299 states have internal predecessors, (454), 57 states have call successors, (57), 17 states have call predecessors, (57), 19 states have return successors, (63), 56 states have call predecessors, (63), 56 states have call successors, (63) [2024-11-08 15:07:55,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 373 states to 373 states and 574 transitions. [2024-11-08 15:07:55,928 INFO L78 Accepts]: Start accepts. Automaton has 373 states and 574 transitions. Word has length 98 [2024-11-08 15:07:55,928 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:07:55,928 INFO L471 AbstractCegarLoop]: Abstraction has 373 states and 574 transitions. [2024-11-08 15:07:55,928 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 5 states have internal predecessors, (68), 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) [2024-11-08 15:07:55,929 INFO L276 IsEmpty]: Start isEmpty. Operand 373 states and 574 transitions. [2024-11-08 15:07:55,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2024-11-08 15:07:55,930 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:07:55,931 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] [2024-11-08 15:07:55,945 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-11-08 15:07:56,134 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 [2024-11-08 15:07:56,136 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:07:56,136 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:07:56,136 INFO L85 PathProgramCache]: Analyzing trace with hash -474056156, now seen corresponding path program 1 times [2024-11-08 15:07:56,136 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:07:56,136 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [246618372] [2024-11-08 15:07:56,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:07:56,136 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:07:56,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:07:56,217 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-08 15:07:56,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:07:56,225 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 15:07:56,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:07:56,228 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-08 15:07:56,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:07:56,230 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-08 15:07:56,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:07:56,232 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-08 15:07:56,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:07:56,247 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-08 15:07:56,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:07:56,256 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-08 15:07:56,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:07:56,266 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-08 15:07:56,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:07:56,269 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-11-08 15:07:56,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:07:56,270 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-11-08 15:07:56,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:07:56,275 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-11-08 15:07:56,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:07:56,277 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-08 15:07:56,278 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:07:56,278 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [246618372] [2024-11-08 15:07:56,278 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [246618372] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:07:56,278 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 15:07:56,278 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-08 15:07:56,278 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1849957640] [2024-11-08 15:07:56,278 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:07:56,278 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-08 15:07:56,279 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:07:56,279 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-08 15:07:56,279 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-08 15:07:56,280 INFO L87 Difference]: Start difference. First operand 373 states and 574 transitions. Second operand has 9 states, 8 states have (on average 8.0) internal successors, (64), 5 states have internal predecessors, (64), 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) [2024-11-08 15:07:57,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:07:57,896 INFO L93 Difference]: Finished difference Result 908 states and 1409 transitions. [2024-11-08 15:07:57,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-08 15:07:57,896 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 8.0) internal successors, (64), 5 states have internal predecessors, (64), 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 99 [2024-11-08 15:07:57,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:07:57,900 INFO L225 Difference]: With dead ends: 908 [2024-11-08 15:07:57,900 INFO L226 Difference]: Without dead ends: 558 [2024-11-08 15:07:57,901 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 [2024-11-08 15:07:57,902 INFO L432 NwaCegarLoop]: 186 mSDtfsCounter, 1050 mSDsluCounter, 985 mSDsCounter, 0 mSdLazyCounter, 2481 mSolverCounterSat, 311 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1051 SdHoareTripleChecker+Valid, 1171 SdHoareTripleChecker+Invalid, 2792 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 311 IncrementalHoareTripleChecker+Valid, 2481 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-08 15:07:57,902 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1051 Valid, 1171 Invalid, 2792 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [311 Valid, 2481 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-08 15:07:57,903 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 558 states. [2024-11-08 15:07:57,921 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 558 to 373. [2024-11-08 15:07:57,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 373 states, 296 states have (on average 1.5337837837837838) internal successors, (454), 299 states have internal predecessors, (454), 57 states have call successors, (57), 17 states have call predecessors, (57), 19 states have return successors, (62), 56 states have call predecessors, (62), 56 states have call successors, (62) [2024-11-08 15:07:57,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 373 states to 373 states and 573 transitions. [2024-11-08 15:07:57,924 INFO L78 Accepts]: Start accepts. Automaton has 373 states and 573 transitions. Word has length 99 [2024-11-08 15:07:57,924 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:07:57,924 INFO L471 AbstractCegarLoop]: Abstraction has 373 states and 573 transitions. [2024-11-08 15:07:57,924 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 8.0) internal successors, (64), 5 states have internal predecessors, (64), 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) [2024-11-08 15:07:57,924 INFO L276 IsEmpty]: Start isEmpty. Operand 373 states and 573 transitions. [2024-11-08 15:07:57,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2024-11-08 15:07:57,925 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:07:57,925 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] [2024-11-08 15:07:57,926 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-08 15:07:57,926 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:07:57,926 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:07:57,926 INFO L85 PathProgramCache]: Analyzing trace with hash 1941909695, now seen corresponding path program 2 times [2024-11-08 15:07:57,926 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:07:57,926 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1549377803] [2024-11-08 15:07:57,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:07:57,926 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:07:57,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:07:58,009 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-08 15:07:58,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:07:58,016 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 15:07:58,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:07:58,018 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-08 15:07:58,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:07:58,020 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-08 15:07:58,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:07:58,021 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-08 15:07:58,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:07:58,035 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-08 15:07:58,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:07:58,044 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-08 15:07:58,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:07:58,052 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-08 15:07:58,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:07:58,053 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-11-08 15:07:58,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:07:58,054 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-08 15:07:58,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:07:58,055 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-08 15:07:58,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:07:58,056 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-08 15:07:58,057 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:07:58,057 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1549377803] [2024-11-08 15:07:58,057 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1549377803] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:07:58,057 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 15:07:58,057 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-08 15:07:58,057 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1834603660] [2024-11-08 15:07:58,057 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:07:58,057 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-08 15:07:58,057 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:07:58,058 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-08 15:07:58,058 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-08 15:07:58,058 INFO L87 Difference]: Start difference. First operand 373 states and 573 transitions. Second operand has 9 states, 8 states have (on average 8.125) internal successors, (65), 5 states have internal predecessors, (65), 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) [2024-11-08 15:07:59,623 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:07:59,624 INFO L93 Difference]: Finished difference Result 910 states and 1412 transitions. [2024-11-08 15:07:59,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-08 15:07:59,625 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 8.125) internal successors, (65), 5 states have internal predecessors, (65), 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 100 [2024-11-08 15:07:59,625 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:07:59,627 INFO L225 Difference]: With dead ends: 910 [2024-11-08 15:07:59,627 INFO L226 Difference]: Without dead ends: 560 [2024-11-08 15:07:59,630 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=72, Invalid=200, Unknown=0, NotChecked=0, Total=272 [2024-11-08 15:07:59,630 INFO L432 NwaCegarLoop]: 184 mSDtfsCounter, 1045 mSDsluCounter, 985 mSDsCounter, 0 mSdLazyCounter, 2472 mSolverCounterSat, 309 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1047 SdHoareTripleChecker+Valid, 1169 SdHoareTripleChecker+Invalid, 2781 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 309 IncrementalHoareTripleChecker+Valid, 2472 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-08 15:07:59,631 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1047 Valid, 1169 Invalid, 2781 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [309 Valid, 2472 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-08 15:07:59,632 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 560 states. [2024-11-08 15:07:59,651 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 560 to 375. [2024-11-08 15:07:59,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 375 states, 297 states have (on average 1.531986531986532) internal successors, (455), 301 states have internal predecessors, (455), 57 states have call successors, (57), 17 states have call predecessors, (57), 20 states have return successors, (64), 56 states have call predecessors, (64), 56 states have call successors, (64) [2024-11-08 15:07:59,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 375 states to 375 states and 576 transitions. [2024-11-08 15:07:59,654 INFO L78 Accepts]: Start accepts. Automaton has 375 states and 576 transitions. Word has length 100 [2024-11-08 15:07:59,654 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:07:59,655 INFO L471 AbstractCegarLoop]: Abstraction has 375 states and 576 transitions. [2024-11-08 15:07:59,655 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 8.125) internal successors, (65), 5 states have internal predecessors, (65), 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) [2024-11-08 15:07:59,655 INFO L276 IsEmpty]: Start isEmpty. Operand 375 states and 576 transitions. [2024-11-08 15:07:59,656 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-11-08 15:07:59,656 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:07:59,656 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] [2024-11-08 15:07:59,656 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-08 15:07:59,656 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:07:59,657 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:07:59,657 INFO L85 PathProgramCache]: Analyzing trace with hash 68261259, now seen corresponding path program 1 times [2024-11-08 15:07:59,657 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:07:59,657 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [299456452] [2024-11-08 15:07:59,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:07:59,657 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:07:59,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:07:59,731 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-08 15:07:59,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:07:59,738 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 15:07:59,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:07:59,744 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-08 15:07:59,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:07:59,746 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-08 15:07:59,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:07:59,749 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-08 15:07:59,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:07:59,762 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-08 15:07:59,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:07:59,770 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-11-08 15:07:59,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:07:59,778 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-11-08 15:07:59,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:07:59,780 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-08 15:07:59,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:07:59,785 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-08 15:07:59,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:07:59,786 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-11-08 15:07:59,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:07:59,790 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-08 15:07:59,790 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:07:59,790 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [299456452] [2024-11-08 15:07:59,791 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [299456452] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:07:59,791 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 15:07:59,791 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-08 15:07:59,791 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [113158745] [2024-11-08 15:07:59,791 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:07:59,791 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-08 15:07:59,791 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:07:59,792 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-08 15:07:59,792 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-08 15:07:59,792 INFO L87 Difference]: Start difference. First operand 375 states and 576 transitions. Second operand has 9 states, 8 states have (on average 8.25) internal successors, (66), 5 states have internal predecessors, (66), 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) [2024-11-08 15:08:01,315 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:08:01,315 INFO L93 Difference]: Finished difference Result 910 states and 1411 transitions. [2024-11-08 15:08:01,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-08 15:08:01,315 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 8.25) internal successors, (66), 5 states have internal predecessors, (66), 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 101 [2024-11-08 15:08:01,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:08:01,319 INFO L225 Difference]: With dead ends: 910 [2024-11-08 15:08:01,319 INFO L226 Difference]: Without dead ends: 560 [2024-11-08 15:08:01,321 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2024-11-08 15:08:01,322 INFO L432 NwaCegarLoop]: 181 mSDtfsCounter, 1042 mSDsluCounter, 985 mSDsCounter, 0 mSdLazyCounter, 2502 mSolverCounterSat, 303 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1043 SdHoareTripleChecker+Valid, 1166 SdHoareTripleChecker+Invalid, 2805 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 303 IncrementalHoareTripleChecker+Valid, 2502 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-08 15:08:01,322 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1043 Valid, 1166 Invalid, 2805 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [303 Valid, 2502 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-08 15:08:01,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 560 states. [2024-11-08 15:08:01,341 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 560 to 375. [2024-11-08 15:08:01,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 375 states, 297 states have (on average 1.531986531986532) internal successors, (455), 301 states have internal predecessors, (455), 57 states have call successors, (57), 17 states have call predecessors, (57), 20 states have return successors, (64), 56 states have call predecessors, (64), 56 states have call successors, (64) [2024-11-08 15:08:01,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 375 states to 375 states and 576 transitions. [2024-11-08 15:08:01,344 INFO L78 Accepts]: Start accepts. Automaton has 375 states and 576 transitions. Word has length 101 [2024-11-08 15:08:01,344 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:08:01,344 INFO L471 AbstractCegarLoop]: Abstraction has 375 states and 576 transitions. [2024-11-08 15:08:01,344 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 8.25) internal successors, (66), 5 states have internal predecessors, (66), 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) [2024-11-08 15:08:01,344 INFO L276 IsEmpty]: Start isEmpty. Operand 375 states and 576 transitions. [2024-11-08 15:08:01,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-11-08 15:08:01,346 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:08:01,346 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] [2024-11-08 15:08:01,346 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-08 15:08:01,347 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:08:01,347 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:08:01,347 INFO L85 PathProgramCache]: Analyzing trace with hash 1754441097, now seen corresponding path program 1 times [2024-11-08 15:08:01,347 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:08:01,347 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [259881868] [2024-11-08 15:08:01,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:08:01,347 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:08:01,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:08:01,450 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-08 15:08:01,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:08:01,458 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 15:08:01,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:08:01,461 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-08 15:08:01,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:08:01,462 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-08 15:08:01,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:08:01,466 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-08 15:08:01,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:08:01,482 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-08 15:08:01,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:08:01,507 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-11-08 15:08:01,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:08:01,519 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-11-08 15:08:01,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:08:01,520 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-08 15:08:01,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:08:01,521 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-08 15:08:01,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:08:01,523 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-11-08 15:08:01,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:08:01,524 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-08 15:08:01,524 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:08:01,525 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [259881868] [2024-11-08 15:08:01,525 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [259881868] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:08:01,525 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 15:08:01,525 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-08 15:08:01,525 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1292080776] [2024-11-08 15:08:01,525 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:08:01,525 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-08 15:08:01,525 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:08:01,526 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-08 15:08:01,526 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2024-11-08 15:08:01,526 INFO L87 Difference]: Start difference. First operand 375 states and 576 transitions. Second operand has 12 states, 11 states have (on average 6.2727272727272725) internal successors, (69), 8 states have internal predecessors, (69), 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) [2024-11-08 15:08:03,384 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:08:03,385 INFO L93 Difference]: Finished difference Result 908 states and 1406 transitions. [2024-11-08 15:08:03,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-08 15:08:03,385 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 6.2727272727272725) internal successors, (69), 8 states have internal predecessors, (69), 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 101 [2024-11-08 15:08:03,385 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:08:03,389 INFO L225 Difference]: With dead ends: 908 [2024-11-08 15:08:03,389 INFO L226 Difference]: Without dead ends: 560 [2024-11-08 15:08:03,390 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 [2024-11-08 15:08:03,391 INFO L432 NwaCegarLoop]: 184 mSDtfsCounter, 1066 mSDsluCounter, 1438 mSDsCounter, 0 mSdLazyCounter, 4031 mSolverCounterSat, 324 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1067 SdHoareTripleChecker+Valid, 1622 SdHoareTripleChecker+Invalid, 4355 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 324 IncrementalHoareTripleChecker+Valid, 4031 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-08 15:08:03,392 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1067 Valid, 1622 Invalid, 4355 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [324 Valid, 4031 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-08 15:08:03,393 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 560 states. [2024-11-08 15:08:03,410 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 560 to 375. [2024-11-08 15:08:03,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 375 states, 297 states have (on average 1.531986531986532) internal successors, (455), 301 states have internal predecessors, (455), 57 states have call successors, (57), 17 states have call predecessors, (57), 20 states have return successors, (63), 56 states have call predecessors, (63), 56 states have call successors, (63) [2024-11-08 15:08:03,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 375 states to 375 states and 575 transitions. [2024-11-08 15:08:03,412 INFO L78 Accepts]: Start accepts. Automaton has 375 states and 575 transitions. Word has length 101 [2024-11-08 15:08:03,413 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:08:03,413 INFO L471 AbstractCegarLoop]: Abstraction has 375 states and 575 transitions. [2024-11-08 15:08:03,413 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 6.2727272727272725) internal successors, (69), 8 states have internal predecessors, (69), 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) [2024-11-08 15:08:03,413 INFO L276 IsEmpty]: Start isEmpty. Operand 375 states and 575 transitions. [2024-11-08 15:08:03,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2024-11-08 15:08:03,414 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:08:03,414 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] [2024-11-08 15:08:03,414 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-08 15:08:03,415 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:08:03,415 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:08:03,415 INFO L85 PathProgramCache]: Analyzing trace with hash -5179092, now seen corresponding path program 2 times [2024-11-08 15:08:03,415 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:08:03,415 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2123131126] [2024-11-08 15:08:03,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:08:03,415 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:08:03,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:08:03,493 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-08 15:08:03,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:08:03,502 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 15:08:03,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:08:03,505 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-08 15:08:03,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:08:03,506 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-08 15:08:03,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:08:03,509 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-08 15:08:03,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:08:03,525 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-08 15:08:03,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:08:03,556 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-11-08 15:08:03,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:08:03,566 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-08 15:08:03,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:08:03,567 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-08 15:08:03,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:08:03,568 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-08 15:08:03,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:08:03,569 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-08 15:08:03,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:08:03,572 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-08 15:08:03,572 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:08:03,572 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2123131126] [2024-11-08 15:08:03,572 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2123131126] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:08:03,572 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 15:08:03,572 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-08 15:08:03,572 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [788650152] [2024-11-08 15:08:03,572 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:08:03,573 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-08 15:08:03,573 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:08:03,573 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-08 15:08:03,573 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2024-11-08 15:08:03,574 INFO L87 Difference]: Start difference. First operand 375 states and 575 transitions. Second operand has 12 states, 11 states have (on average 6.363636363636363) internal successors, (70), 8 states have internal predecessors, (70), 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) [2024-11-08 15:08:05,377 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:08:05,377 INFO L93 Difference]: Finished difference Result 910 states and 1412 transitions. [2024-11-08 15:08:05,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-08 15:08:05,377 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 6.363636363636363) internal successors, (70), 8 states have internal predecessors, (70), 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 102 [2024-11-08 15:08:05,377 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:08:05,380 INFO L225 Difference]: With dead ends: 910 [2024-11-08 15:08:05,380 INFO L226 Difference]: Without dead ends: 562 [2024-11-08 15:08:05,381 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 [2024-11-08 15:08:05,382 INFO L432 NwaCegarLoop]: 183 mSDtfsCounter, 1062 mSDsluCounter, 1438 mSDsCounter, 0 mSdLazyCounter, 4030 mSolverCounterSat, 315 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1063 SdHoareTripleChecker+Valid, 1621 SdHoareTripleChecker+Invalid, 4345 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 315 IncrementalHoareTripleChecker+Valid, 4030 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-08 15:08:05,382 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1063 Valid, 1621 Invalid, 4345 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [315 Valid, 4030 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-08 15:08:05,383 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 562 states. [2024-11-08 15:08:05,398 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 562 to 377. [2024-11-08 15:08:05,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 377 states, 298 states have (on average 1.5302013422818792) internal successors, (456), 303 states have internal predecessors, (456), 57 states have call successors, (57), 17 states have call predecessors, (57), 21 states have return successors, (68), 56 states have call predecessors, (68), 56 states have call successors, (68) [2024-11-08 15:08:05,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 377 states to 377 states and 581 transitions. [2024-11-08 15:08:05,400 INFO L78 Accepts]: Start accepts. Automaton has 377 states and 581 transitions. Word has length 102 [2024-11-08 15:08:05,400 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:08:05,400 INFO L471 AbstractCegarLoop]: Abstraction has 377 states and 581 transitions. [2024-11-08 15:08:05,401 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 6.363636363636363) internal successors, (70), 8 states have internal predecessors, (70), 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) [2024-11-08 15:08:05,401 INFO L276 IsEmpty]: Start isEmpty. Operand 377 states and 581 transitions. [2024-11-08 15:08:05,402 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2024-11-08 15:08:05,402 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:08:05,402 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] [2024-11-08 15:08:05,402 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-08 15:08:05,402 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:08:05,402 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:08:05,402 INFO L85 PathProgramCache]: Analyzing trace with hash -1612047954, now seen corresponding path program 1 times [2024-11-08 15:08:05,402 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:08:05,403 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1999609075] [2024-11-08 15:08:05,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:08:05,403 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:08:05,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:08:05,518 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-08 15:08:05,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:08:05,527 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 15:08:05,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:08:05,529 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-08 15:08:05,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:08:05,547 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-08 15:08:05,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:08:05,549 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-08 15:08:05,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:08:05,551 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-08 15:08:05,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:08:05,560 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-11-08 15:08:05,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:08:05,570 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-11-08 15:08:05,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:08:05,571 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-08 15:08:05,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:08:05,572 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-11-08 15:08:05,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:08:05,573 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-11-08 15:08:05,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:08:05,574 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2024-11-08 15:08:05,574 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:08:05,574 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1999609075] [2024-11-08 15:08:05,575 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1999609075] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 15:08:05,575 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [421282176] [2024-11-08 15:08:05,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:08:05,575 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 15:08:05,575 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 15:08:05,576 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) [2024-11-08 15:08:05,578 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-08 15:08:05,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:08:05,781 INFO L255 TraceCheckSpWp]: Trace formula consists of 968 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-08 15:08:05,783 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 15:08:05,819 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-08 15:08:05,820 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 15:08:05,884 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-08 15:08:05,884 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [421282176] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 15:08:05,884 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-08 15:08:05,884 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 4, 4] total 15 [2024-11-08 15:08:05,885 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1044474231] [2024-11-08 15:08:05,885 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-08 15:08:05,885 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-08 15:08:05,885 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:08:05,885 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-08 15:08:05,886 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=177, Unknown=0, NotChecked=0, Total=210 [2024-11-08 15:08:05,886 INFO L87 Difference]: Start difference. First operand 377 states and 581 transitions. Second operand has 15 states, 14 states have (on average 8.285714285714286) internal successors, (116), 11 states have internal predecessors, (116), 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) [2024-11-08 15:08:07,815 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:08:07,816 INFO L93 Difference]: Finished difference Result 1285 states and 2084 transitions. [2024-11-08 15:08:07,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-08 15:08:07,816 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 8.285714285714286) internal successors, (116), 11 states have internal predecessors, (116), 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 103 [2024-11-08 15:08:07,816 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:08:07,820 INFO L225 Difference]: With dead ends: 1285 [2024-11-08 15:08:07,820 INFO L226 Difference]: Without dead ends: 939 [2024-11-08 15:08:07,822 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 253 GetRequests, 223 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 149 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=164, Invalid=828, Unknown=0, NotChecked=0, Total=992 [2024-11-08 15:08:07,822 INFO L432 NwaCegarLoop]: 182 mSDtfsCounter, 2173 mSDsluCounter, 1702 mSDsCounter, 0 mSdLazyCounter, 4477 mSolverCounterSat, 634 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2191 SdHoareTripleChecker+Valid, 1884 SdHoareTripleChecker+Invalid, 5111 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 634 IncrementalHoareTripleChecker+Valid, 4477 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-08 15:08:07,823 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2191 Valid, 1884 Invalid, 5111 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [634 Valid, 4477 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-08 15:08:07,823 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 939 states. [2024-11-08 15:08:07,846 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 939 to 730. [2024-11-08 15:08:07,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 730 states, 587 states have (on average 1.5792163543441227) internal successors, (927), 592 states have internal predecessors, (927), 121 states have call successors, (121), 17 states have call predecessors, (121), 21 states have return successors, (142), 120 states have call predecessors, (142), 120 states have call successors, (142) [2024-11-08 15:08:07,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 730 states to 730 states and 1190 transitions. [2024-11-08 15:08:07,849 INFO L78 Accepts]: Start accepts. Automaton has 730 states and 1190 transitions. Word has length 103 [2024-11-08 15:08:07,849 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:08:07,849 INFO L471 AbstractCegarLoop]: Abstraction has 730 states and 1190 transitions. [2024-11-08 15:08:07,850 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 8.285714285714286) internal successors, (116), 11 states have internal predecessors, (116), 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) [2024-11-08 15:08:07,850 INFO L276 IsEmpty]: Start isEmpty. Operand 730 states and 1190 transitions. [2024-11-08 15:08:07,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2024-11-08 15:08:07,852 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:08:07,852 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] [2024-11-08 15:08:07,865 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-11-08 15:08:08,052 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 15:08:08,053 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:08:08,053 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:08:08,053 INFO L85 PathProgramCache]: Analyzing trace with hash -1233260648, now seen corresponding path program 1 times [2024-11-08 15:08:08,053 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:08:08,053 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1876301094] [2024-11-08 15:08:08,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:08:08,053 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:08:08,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:08:08,093 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-08 15:08:08,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:08:08,100 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 15:08:08,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:08:08,102 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-08 15:08:08,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:08:08,104 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-08 15:08:08,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:08:08,106 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-08 15:08:08,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:08:08,107 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-08 15:08:08,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:08:08,114 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-11-08 15:08:08,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:08:08,121 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-08 15:08:08,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:08:08,124 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-08 15:08:08,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:08:08,126 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-08 15:08:08,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:08:08,128 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-11-08 15:08:08,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:08:08,129 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-08 15:08:08,129 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:08:08,129 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1876301094] [2024-11-08 15:08:08,129 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1876301094] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:08:08,129 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 15:08:08,129 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-08 15:08:08,129 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [203189512] [2024-11-08 15:08:08,129 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:08:08,130 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 15:08:08,130 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:08:08,130 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 15:08:08,130 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-08 15:08:08,131 INFO L87 Difference]: Start difference. First operand 730 states and 1190 transitions. Second operand has 7 states, 7 states have (on average 9.857142857142858) internal successors, (69), 3 states have internal predecessors, (69), 2 states have call successors, (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) [2024-11-08 15:08:09,096 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:08:09,096 INFO L93 Difference]: Finished difference Result 1900 states and 3163 transitions. [2024-11-08 15:08:09,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-08 15:08:09,097 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.857142857142858) internal successors, (69), 3 states have internal predecessors, (69), 2 states have call successors, (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 106 [2024-11-08 15:08:09,097 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:08:09,102 INFO L225 Difference]: With dead ends: 1900 [2024-11-08 15:08:09,102 INFO L226 Difference]: Without dead ends: 1248 [2024-11-08 15:08:09,104 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 [2024-11-08 15:08:09,105 INFO L432 NwaCegarLoop]: 200 mSDtfsCounter, 1148 mSDsluCounter, 688 mSDsCounter, 0 mSdLazyCounter, 1487 mSolverCounterSat, 366 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1164 SdHoareTripleChecker+Valid, 888 SdHoareTripleChecker+Invalid, 1853 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 366 IncrementalHoareTripleChecker+Valid, 1487 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-08 15:08:09,105 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1164 Valid, 888 Invalid, 1853 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [366 Valid, 1487 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-08 15:08:09,106 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1248 states. [2024-11-08 15:08:09,134 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1248 to 1055. [2024-11-08 15:08:09,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1055 states, 848 states have (on average 1.5943396226415094) internal successors, (1352), 853 states have internal predecessors, (1352), 185 states have call successors, (185), 17 states have call predecessors, (185), 21 states have return successors, (216), 184 states have call predecessors, (216), 184 states have call successors, (216) [2024-11-08 15:08:09,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1055 states to 1055 states and 1753 transitions. [2024-11-08 15:08:09,138 INFO L78 Accepts]: Start accepts. Automaton has 1055 states and 1753 transitions. Word has length 106 [2024-11-08 15:08:09,139 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:08:09,139 INFO L471 AbstractCegarLoop]: Abstraction has 1055 states and 1753 transitions. [2024-11-08 15:08:09,139 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.857142857142858) internal successors, (69), 3 states have internal predecessors, (69), 2 states have call successors, (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) [2024-11-08 15:08:09,139 INFO L276 IsEmpty]: Start isEmpty. Operand 1055 states and 1753 transitions. [2024-11-08 15:08:09,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-11-08 15:08:09,141 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:08:09,141 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] [2024-11-08 15:08:09,142 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-08 15:08:09,142 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:08:09,142 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:08:09,142 INFO L85 PathProgramCache]: Analyzing trace with hash 861540850, now seen corresponding path program 1 times [2024-11-08 15:08:09,142 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:08:09,142 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1866202085] [2024-11-08 15:08:09,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:08:09,142 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:08:09,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:08:09,177 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-08 15:08:09,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:08:09,184 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 15:08:09,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:08:09,186 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-08 15:08:09,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:08:09,187 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-08 15:08:09,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:08:09,188 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-08 15:08:09,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:08:09,191 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-08 15:08:09,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:08:09,197 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-08 15:08:09,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:08:09,225 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-11-08 15:08:09,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:08:09,226 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-08 15:08:09,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:08:09,228 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-11-08 15:08:09,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:08:09,229 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-11-08 15:08:09,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:08:09,230 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-08 15:08:09,230 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:08:09,231 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1866202085] [2024-11-08 15:08:09,231 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1866202085] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:08:09,231 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 15:08:09,231 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-08 15:08:09,231 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [247013577] [2024-11-08 15:08:09,231 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:08:09,231 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 15:08:09,231 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:08:09,232 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 15:08:09,232 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-08 15:08:09,232 INFO L87 Difference]: Start difference. First operand 1055 states and 1753 transitions. Second operand has 7 states, 7 states have (on average 10.0) internal successors, (70), 3 states have internal predecessors, (70), 2 states have call successors, (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) [2024-11-08 15:08:10,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:08:10,259 INFO L93 Difference]: Finished difference Result 2705 states and 4547 transitions. [2024-11-08 15:08:10,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-08 15:08:10,259 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.0) internal successors, (70), 3 states have internal predecessors, (70), 2 states have call successors, (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 107 [2024-11-08 15:08:10,259 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:08:10,267 INFO L225 Difference]: With dead ends: 2705 [2024-11-08 15:08:10,267 INFO L226 Difference]: Without dead ends: 1781 [2024-11-08 15:08:10,270 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 [2024-11-08 15:08:10,271 INFO L432 NwaCegarLoop]: 185 mSDtfsCounter, 1167 mSDsluCounter, 668 mSDsCounter, 0 mSdLazyCounter, 1421 mSolverCounterSat, 365 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1183 SdHoareTripleChecker+Valid, 853 SdHoareTripleChecker+Invalid, 1786 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 365 IncrementalHoareTripleChecker+Valid, 1421 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-08 15:08:10,271 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1183 Valid, 853 Invalid, 1786 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [365 Valid, 1421 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-08 15:08:10,272 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1781 states. [2024-11-08 15:08:10,317 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1781 to 1588. [2024-11-08 15:08:10,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1588 states, 1286 states have (on average 1.6003110419906688) internal successors, (2058), 1291 states have internal predecessors, (2058), 280 states have call successors, (280), 17 states have call predecessors, (280), 21 states have return successors, (311), 279 states have call predecessors, (311), 279 states have call successors, (311) [2024-11-08 15:08:10,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1588 states to 1588 states and 2649 transitions. [2024-11-08 15:08:10,324 INFO L78 Accepts]: Start accepts. Automaton has 1588 states and 2649 transitions. Word has length 107 [2024-11-08 15:08:10,324 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:08:10,325 INFO L471 AbstractCegarLoop]: Abstraction has 1588 states and 2649 transitions. [2024-11-08 15:08:10,325 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.0) internal successors, (70), 3 states have internal predecessors, (70), 2 states have call successors, (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) [2024-11-08 15:08:10,325 INFO L276 IsEmpty]: Start isEmpty. Operand 1588 states and 2649 transitions. [2024-11-08 15:08:10,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-11-08 15:08:10,329 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:08:10,329 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] [2024-11-08 15:08:10,329 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-08 15:08:10,329 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:08:10,329 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:08:10,329 INFO L85 PathProgramCache]: Analyzing trace with hash 985171018, now seen corresponding path program 1 times [2024-11-08 15:08:10,329 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:08:10,330 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [279381813] [2024-11-08 15:08:10,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:08:10,330 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:08:10,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:08:10,399 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-08 15:08:10,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:08:10,418 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 15:08:10,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:08:10,421 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-08 15:08:10,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:08:10,422 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-08 15:08:10,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:08:10,424 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-08 15:08:10,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:08:10,425 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-08 15:08:10,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:08:10,431 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-11-08 15:08:10,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:08:10,440 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-11-08 15:08:10,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:08:10,442 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-08 15:08:10,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:08:10,443 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-08 15:08:10,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:08:10,444 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-08 15:08:10,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:08:10,445 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-08 15:08:10,445 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:08:10,445 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [279381813] [2024-11-08 15:08:10,445 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [279381813] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:08:10,445 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 15:08:10,445 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-08 15:08:10,445 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1031928833] [2024-11-08 15:08:10,446 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:08:10,446 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 15:08:10,446 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:08:10,446 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 15:08:10,446 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-08 15:08:10,447 INFO L87 Difference]: Start difference. First operand 1588 states and 2649 transitions. Second operand has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 3 states have internal predecessors, (71), 2 states have call successors, (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) [2024-11-08 15:08:11,408 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:08:11,409 INFO L93 Difference]: Finished difference Result 3912 states and 6633 transitions. [2024-11-08 15:08:11,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-08 15:08:11,409 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 3 states have internal predecessors, (71), 2 states have call successors, (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 108 [2024-11-08 15:08:11,409 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:08:11,419 INFO L225 Difference]: With dead ends: 3912 [2024-11-08 15:08:11,420 INFO L226 Difference]: Without dead ends: 2590 [2024-11-08 15:08:11,423 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 [2024-11-08 15:08:11,424 INFO L432 NwaCegarLoop]: 183 mSDtfsCounter, 1171 mSDsluCounter, 667 mSDsCounter, 0 mSdLazyCounter, 1377 mSolverCounterSat, 374 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1187 SdHoareTripleChecker+Valid, 850 SdHoareTripleChecker+Invalid, 1751 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 374 IncrementalHoareTripleChecker+Valid, 1377 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-08 15:08:11,424 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1187 Valid, 850 Invalid, 1751 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [374 Valid, 1377 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-08 15:08:11,425 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2590 states. [2024-11-08 15:08:11,487 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2590 to 2397. [2024-11-08 15:08:11,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2397 states, 1972 states have (on average 1.604969574036511) internal successors, (3165), 1977 states have internal predecessors, (3165), 403 states have call successors, (403), 17 states have call predecessors, (403), 21 states have return successors, (450), 402 states have call predecessors, (450), 402 states have call successors, (450) [2024-11-08 15:08:11,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2397 states to 2397 states and 4018 transitions. [2024-11-08 15:08:11,498 INFO L78 Accepts]: Start accepts. Automaton has 2397 states and 4018 transitions. Word has length 108 [2024-11-08 15:08:11,498 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:08:11,498 INFO L471 AbstractCegarLoop]: Abstraction has 2397 states and 4018 transitions. [2024-11-08 15:08:11,498 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 3 states have internal predecessors, (71), 2 states have call successors, (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) [2024-11-08 15:08:11,498 INFO L276 IsEmpty]: Start isEmpty. Operand 2397 states and 4018 transitions. [2024-11-08 15:08:11,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-11-08 15:08:11,502 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:08:11,502 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] [2024-11-08 15:08:11,502 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-08 15:08:11,503 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:08:11,503 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:08:11,503 INFO L85 PathProgramCache]: Analyzing trace with hash 457694449, now seen corresponding path program 1 times [2024-11-08 15:08:11,503 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:08:11,503 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1732198688] [2024-11-08 15:08:11,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:08:11,503 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:08:11,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:08:11,566 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-08 15:08:11,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:08:11,573 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 15:08:11,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:08:11,575 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-08 15:08:11,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:08:11,576 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-08 15:08:11,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:08:11,577 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-08 15:08:11,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:08:11,579 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-08 15:08:11,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:08:11,586 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-11-08 15:08:11,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:08:11,592 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-08 15:08:11,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:08:11,594 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-11-08 15:08:11,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:08:11,595 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-11-08 15:08:11,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:08:11,596 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-11-08 15:08:11,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:08:11,598 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-08 15:08:11,598 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:08:11,598 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1732198688] [2024-11-08 15:08:11,598 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1732198688] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:08:11,598 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 15:08:11,598 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-08 15:08:11,598 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1200938618] [2024-11-08 15:08:11,598 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:08:11,599 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 15:08:11,599 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:08:11,599 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 15:08:11,599 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-08 15:08:11,600 INFO L87 Difference]: Start difference. First operand 2397 states and 4018 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) [2024-11-08 15:08:12,595 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:08:12,596 INFO L93 Difference]: Finished difference Result 5796 states and 9893 transitions. [2024-11-08 15:08:12,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-08 15:08:12,596 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 [2024-11-08 15:08:12,596 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:08:12,613 INFO L225 Difference]: With dead ends: 5796 [2024-11-08 15:08:12,613 INFO L226 Difference]: Without dead ends: 3884 [2024-11-08 15:08:12,619 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 [2024-11-08 15:08:12,620 INFO L432 NwaCegarLoop]: 184 mSDtfsCounter, 1161 mSDsluCounter, 667 mSDsCounter, 0 mSdLazyCounter, 1416 mSolverCounterSat, 370 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1177 SdHoareTripleChecker+Valid, 851 SdHoareTripleChecker+Invalid, 1786 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 370 IncrementalHoareTripleChecker+Valid, 1416 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-08 15:08:12,620 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1177 Valid, 851 Invalid, 1786 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [370 Valid, 1416 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-08 15:08:12,623 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3884 states. [2024-11-08 15:08:12,740 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3884 to 3691. [2024-11-08 15:08:12,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3691 states, 3087 states have (on average 1.6077097505668934) internal successors, (4963), 3092 states have internal predecessors, (4963), 582 states have call successors, (582), 17 states have call predecessors, (582), 21 states have return successors, (655), 581 states have call predecessors, (655), 581 states have call successors, (655) [2024-11-08 15:08:12,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3691 states to 3691 states and 6200 transitions. [2024-11-08 15:08:12,756 INFO L78 Accepts]: Start accepts. Automaton has 3691 states and 6200 transitions. Word has length 109 [2024-11-08 15:08:12,756 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:08:12,756 INFO L471 AbstractCegarLoop]: Abstraction has 3691 states and 6200 transitions. [2024-11-08 15:08:12,756 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) [2024-11-08 15:08:12,756 INFO L276 IsEmpty]: Start isEmpty. Operand 3691 states and 6200 transitions. [2024-11-08 15:08:12,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2024-11-08 15:08:12,761 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:08:12,761 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] [2024-11-08 15:08:12,761 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-08 15:08:12,761 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:08:12,761 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:08:12,761 INFO L85 PathProgramCache]: Analyzing trace with hash -1689913714, now seen corresponding path program 1 times [2024-11-08 15:08:12,761 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:08:12,762 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [287412653] [2024-11-08 15:08:12,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:08:12,762 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:08:12,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:08:12,804 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-08 15:08:12,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:08:12,811 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 15:08:12,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:08:12,813 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-08 15:08:12,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:08:12,815 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-08 15:08:12,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:08:12,816 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-08 15:08:12,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:08:12,817 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-08 15:08:12,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:08:12,825 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-08 15:08:12,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:08:12,832 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-08 15:08:12,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:08:12,834 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-11-08 15:08:12,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:08:12,835 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2024-11-08 15:08:12,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:08:12,836 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-11-08 15:08:12,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:08:12,837 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-08 15:08:12,837 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:08:12,837 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [287412653] [2024-11-08 15:08:12,837 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [287412653] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:08:12,837 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 15:08:12,838 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-08 15:08:12,839 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1213544357] [2024-11-08 15:08:12,839 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:08:12,839 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 15:08:12,839 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:08:12,839 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 15:08:12,840 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-08 15:08:12,840 INFO L87 Difference]: Start difference. First operand 3691 states and 6200 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) [2024-11-08 15:08:13,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:08:13,989 INFO L93 Difference]: Finished difference Result 8899 states and 15257 transitions. [2024-11-08 15:08:13,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-08 15:08:13,990 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 [2024-11-08 15:08:13,990 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:08:14,011 INFO L225 Difference]: With dead ends: 8899 [2024-11-08 15:08:14,012 INFO L226 Difference]: Without dead ends: 6025 [2024-11-08 15:08:14,018 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 [2024-11-08 15:08:14,019 INFO L432 NwaCegarLoop]: 214 mSDtfsCounter, 1136 mSDsluCounter, 713 mSDsCounter, 0 mSdLazyCounter, 1524 mSolverCounterSat, 354 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1151 SdHoareTripleChecker+Valid, 927 SdHoareTripleChecker+Invalid, 1878 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 354 IncrementalHoareTripleChecker+Valid, 1524 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-08 15:08:14,019 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1151 Valid, 927 Invalid, 1878 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [354 Valid, 1524 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-08 15:08:14,023 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6025 states. [2024-11-08 15:08:14,170 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6025 to 5832. [2024-11-08 15:08:14,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5832 states, 4852 states have (on average 1.6011953833470733) internal successors, (7769), 4857 states have internal predecessors, (7769), 958 states have call successors, (958), 17 states have call predecessors, (958), 21 states have return successors, (1075), 957 states have call predecessors, (1075), 957 states have call successors, (1075) [2024-11-08 15:08:14,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5832 states to 5832 states and 9802 transitions. [2024-11-08 15:08:14,194 INFO L78 Accepts]: Start accepts. Automaton has 5832 states and 9802 transitions. Word has length 110 [2024-11-08 15:08:14,194 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:08:14,195 INFO L471 AbstractCegarLoop]: Abstraction has 5832 states and 9802 transitions. [2024-11-08 15:08:14,195 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) [2024-11-08 15:08:14,195 INFO L276 IsEmpty]: Start isEmpty. Operand 5832 states and 9802 transitions. [2024-11-08 15:08:14,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-11-08 15:08:14,201 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:08:14,201 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] [2024-11-08 15:08:14,202 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-08 15:08:14,202 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:08:14,202 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:08:14,202 INFO L85 PathProgramCache]: Analyzing trace with hash -1581943123, now seen corresponding path program 1 times [2024-11-08 15:08:14,202 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:08:14,202 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [360192421] [2024-11-08 15:08:14,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:08:14,203 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:08:14,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:08:14,272 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-08 15:08:14,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:08:14,278 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 15:08:14,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:08:14,280 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-08 15:08:14,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:08:14,282 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-08 15:08:14,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:08:14,283 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-08 15:08:14,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:08:14,285 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-08 15:08:14,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:08:14,292 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-08 15:08:14,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:08:14,301 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-08 15:08:14,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:08:14,303 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-11-08 15:08:14,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:08:14,304 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-08 15:08:14,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:08:14,306 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-11-08 15:08:14,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:08:14,307 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-08 15:08:14,308 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:08:14,308 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [360192421] [2024-11-08 15:08:14,308 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [360192421] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:08:14,308 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 15:08:14,308 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-08 15:08:14,308 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [498969655] [2024-11-08 15:08:14,308 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:08:14,308 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 15:08:14,308 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:08:14,309 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 15:08:14,309 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-08 15:08:14,310 INFO L87 Difference]: Start difference. First operand 5832 states and 9802 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) [2024-11-08 15:08:15,432 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:08:15,433 INFO L93 Difference]: Finished difference Result 14516 states and 24870 transitions. [2024-11-08 15:08:15,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-08 15:08:15,433 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 [2024-11-08 15:08:15,433 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:08:15,471 INFO L225 Difference]: With dead ends: 14516 [2024-11-08 15:08:15,472 INFO L226 Difference]: Without dead ends: 9903 [2024-11-08 15:08:15,480 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 [2024-11-08 15:08:15,481 INFO L432 NwaCegarLoop]: 190 mSDtfsCounter, 1141 mSDsluCounter, 676 mSDsCounter, 0 mSdLazyCounter, 1456 mSolverCounterSat, 377 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1157 SdHoareTripleChecker+Valid, 866 SdHoareTripleChecker+Invalid, 1833 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 377 IncrementalHoareTripleChecker+Valid, 1456 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-08 15:08:15,481 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1157 Valid, 866 Invalid, 1833 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [377 Valid, 1456 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-08 15:08:15,488 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9903 states. [2024-11-08 15:08:15,694 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9903 to 9710. [2024-11-08 15:08:15,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9710 states, 8124 states have (on average 1.5987198424421467) internal successors, (12988), 8129 states have internal predecessors, (12988), 1564 states have call successors, (1564), 17 states have call predecessors, (1564), 21 states have return successors, (1759), 1563 states have call predecessors, (1759), 1563 states have call successors, (1759) [2024-11-08 15:08:15,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9710 states to 9710 states and 16311 transitions. [2024-11-08 15:08:15,808 INFO L78 Accepts]: Start accepts. Automaton has 9710 states and 16311 transitions. Word has length 111 [2024-11-08 15:08:15,808 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:08:15,808 INFO L471 AbstractCegarLoop]: Abstraction has 9710 states and 16311 transitions. [2024-11-08 15:08:15,808 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) [2024-11-08 15:08:15,808 INFO L276 IsEmpty]: Start isEmpty. Operand 9710 states and 16311 transitions. [2024-11-08 15:08:15,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2024-11-08 15:08:15,816 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:08:15,816 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] [2024-11-08 15:08:15,816 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-08 15:08:15,817 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:08:15,817 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:08:15,817 INFO L85 PathProgramCache]: Analyzing trace with hash -1872835360, now seen corresponding path program 1 times [2024-11-08 15:08:15,817 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:08:15,817 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1181994311] [2024-11-08 15:08:15,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:08:15,817 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:08:15,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:08:15,859 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-08 15:08:15,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:08:15,866 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 15:08:15,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:08:15,868 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-08 15:08:15,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:08:15,869 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-08 15:08:15,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:08:15,871 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-08 15:08:15,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:08:15,872 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-08 15:08:15,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:08:15,878 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-11-08 15:08:15,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:08:15,887 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-08 15:08:15,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:08:15,888 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-08 15:08:15,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:08:15,890 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-11-08 15:08:15,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:08:15,891 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-08 15:08:15,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:08:15,892 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-08 15:08:15,892 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:08:15,892 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1181994311] [2024-11-08 15:08:15,892 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1181994311] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:08:15,892 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 15:08:15,892 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-08 15:08:15,892 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1933526456] [2024-11-08 15:08:15,892 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:08:15,894 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 15:08:15,894 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:08:15,895 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 15:08:15,895 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-08 15:08:15,895 INFO L87 Difference]: Start difference. First operand 9710 states and 16311 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) [2024-11-08 15:08:17,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:08:17,276 INFO L93 Difference]: Finished difference Result 25225 states and 43151 transitions. [2024-11-08 15:08:17,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-08 15:08:17,277 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 [2024-11-08 15:08:17,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:08:17,334 INFO L225 Difference]: With dead ends: 25225 [2024-11-08 15:08:17,334 INFO L226 Difference]: Without dead ends: 17216 [2024-11-08 15:08:17,358 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 [2024-11-08 15:08:17,359 INFO L432 NwaCegarLoop]: 192 mSDtfsCounter, 1156 mSDsluCounter, 682 mSDsCounter, 0 mSdLazyCounter, 1444 mSolverCounterSat, 371 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1171 SdHoareTripleChecker+Valid, 874 SdHoareTripleChecker+Invalid, 1815 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 371 IncrementalHoareTripleChecker+Valid, 1444 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-08 15:08:17,359 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1171 Valid, 874 Invalid, 1815 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [371 Valid, 1444 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-08 15:08:17,372 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17216 states. [2024-11-08 15:08:17,832 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17216 to 17023. [2024-11-08 15:08:17,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17023 states, 14234 states have (on average 1.590136293382043) internal successors, (22634), 14239 states have internal predecessors, (22634), 2767 states have call successors, (2767), 17 states have call predecessors, (2767), 21 states have return successors, (3106), 2766 states have call predecessors, (3106), 2766 states have call successors, (3106) [2024-11-08 15:08:17,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17023 states to 17023 states and 28507 transitions. [2024-11-08 15:08:17,912 INFO L78 Accepts]: Start accepts. Automaton has 17023 states and 28507 transitions. Word has length 112 [2024-11-08 15:08:17,912 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:08:17,913 INFO L471 AbstractCegarLoop]: Abstraction has 17023 states and 28507 transitions. [2024-11-08 15:08:17,913 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) [2024-11-08 15:08:17,913 INFO L276 IsEmpty]: Start isEmpty. Operand 17023 states and 28507 transitions. [2024-11-08 15:08:17,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2024-11-08 15:08:17,925 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:08:17,925 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] [2024-11-08 15:08:17,926 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-08 15:08:17,926 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:08:17,926 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:08:17,926 INFO L85 PathProgramCache]: Analyzing trace with hash -58354548, now seen corresponding path program 1 times [2024-11-08 15:08:17,926 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:08:17,926 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [139458413] [2024-11-08 15:08:17,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:08:17,927 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:08:17,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:08:17,972 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-08 15:08:17,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:08:17,980 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 15:08:17,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:08:17,983 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-08 15:08:17,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:08:17,985 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-08 15:08:17,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:08:17,986 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-08 15:08:17,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:08:17,987 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-08 15:08:17,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:08:17,995 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-11-08 15:08:17,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:08:18,003 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-11-08 15:08:18,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:08:18,006 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-11-08 15:08:18,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:08:18,008 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-11-08 15:08:18,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:08:18,009 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-11-08 15:08:18,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:08:18,011 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-08 15:08:18,011 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:08:18,011 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [139458413] [2024-11-08 15:08:18,011 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [139458413] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:08:18,011 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 15:08:18,011 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-08 15:08:18,011 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1873977603] [2024-11-08 15:08:18,012 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:08:18,012 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 15:08:18,013 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:08:18,013 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 15:08:18,013 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-08 15:08:18,014 INFO L87 Difference]: Start difference. First operand 17023 states and 28507 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) [2024-11-08 15:08:19,503 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:08:19,503 INFO L93 Difference]: Finished difference Result 45201 states and 77164 transitions. [2024-11-08 15:08:19,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-08 15:08:19,504 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 [2024-11-08 15:08:19,504 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:08:19,600 INFO L225 Difference]: With dead ends: 45201 [2024-11-08 15:08:19,601 INFO L226 Difference]: Without dead ends: 30556 [2024-11-08 15:08:19,639 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 [2024-11-08 15:08:19,640 INFO L432 NwaCegarLoop]: 184 mSDtfsCounter, 1126 mSDsluCounter, 668 mSDsCounter, 0 mSdLazyCounter, 1478 mSolverCounterSat, 353 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1142 SdHoareTripleChecker+Valid, 852 SdHoareTripleChecker+Invalid, 1831 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 353 IncrementalHoareTripleChecker+Valid, 1478 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-08 15:08:19,640 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1142 Valid, 852 Invalid, 1831 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [353 Valid, 1478 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-08 15:08:19,660 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30556 states. [2024-11-08 15:08:20,778 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30556 to 30363. [2024-11-08 15:08:20,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30363 states, 25535 states have (on average 1.5859408654787546) internal successors, (40497), 25540 states have internal predecessors, (40497), 4806 states have call successors, (4806), 17 states have call predecessors, (4806), 21 states have return successors, (5419), 4805 states have call predecessors, (5419), 4805 states have call successors, (5419) [2024-11-08 15:08:20,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30363 states to 30363 states and 50722 transitions. [2024-11-08 15:08:20,879 INFO L78 Accepts]: Start accepts. Automaton has 30363 states and 50722 transitions. Word has length 113 [2024-11-08 15:08:20,879 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:08:20,880 INFO L471 AbstractCegarLoop]: Abstraction has 30363 states and 50722 transitions. [2024-11-08 15:08:20,880 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) [2024-11-08 15:08:20,880 INFO L276 IsEmpty]: Start isEmpty. Operand 30363 states and 50722 transitions. [2024-11-08 15:08:20,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2024-11-08 15:08:20,892 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:08:20,892 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] [2024-11-08 15:08:20,892 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-08 15:08:20,893 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:08:20,893 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:08:20,893 INFO L85 PathProgramCache]: Analyzing trace with hash 57379902, now seen corresponding path program 1 times [2024-11-08 15:08:20,893 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:08:20,893 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [128868160] [2024-11-08 15:08:20,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:08:20,893 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:08:20,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:08:20,932 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-08 15:08:20,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:08:20,939 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 15:08:20,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:08:20,940 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-08 15:08:20,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:08:20,942 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-08 15:08:20,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:08:20,943 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-08 15:08:20,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:08:20,945 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-08 15:08:20,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:08:20,951 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-08 15:08:20,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:08:20,960 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-11-08 15:08:20,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:08:20,961 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-08 15:08:20,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:08:20,962 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-08 15:08:20,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:08:20,963 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-08 15:08:20,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:08:20,964 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-08 15:08:20,965 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:08:20,965 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [128868160] [2024-11-08 15:08:20,965 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [128868160] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:08:20,965 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 15:08:20,965 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-08 15:08:20,965 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [780574875] [2024-11-08 15:08:20,965 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:08:20,966 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 15:08:20,966 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:08:20,966 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 15:08:20,967 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-08 15:08:20,967 INFO L87 Difference]: Start difference. First operand 30363 states and 50722 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) [2024-11-08 15:08:22,972 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:08:22,972 INFO L93 Difference]: Finished difference Result 82938 states and 140688 transitions. [2024-11-08 15:08:22,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-08 15:08:22,973 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 [2024-11-08 15:08:22,973 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:08:23,170 INFO L225 Difference]: With dead ends: 82938 [2024-11-08 15:08:23,170 INFO L226 Difference]: Without dead ends: 55765 [2024-11-08 15:08:23,238 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 [2024-11-08 15:08:23,239 INFO L432 NwaCegarLoop]: 187 mSDtfsCounter, 1155 mSDsluCounter, 672 mSDsCounter, 0 mSdLazyCounter, 1414 mSolverCounterSat, 369 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1170 SdHoareTripleChecker+Valid, 859 SdHoareTripleChecker+Invalid, 1783 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 369 IncrementalHoareTripleChecker+Valid, 1414 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-08 15:08:23,239 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1170 Valid, 859 Invalid, 1783 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [369 Valid, 1414 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-08 15:08:23,275 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55765 states. [2024-11-08 15:08:24,985 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55765 to 55572. [2024-11-08 15:08:25,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55572 states, 47029 states have (on average 1.5804716238916414) internal successors, (74328), 47034 states have internal predecessors, (74328), 8521 states have call successors, (8521), 17 states have call predecessors, (8521), 21 states have return successors, (9666), 8520 states have call predecessors, (9666), 8520 states have call successors, (9666) [2024-11-08 15:08:25,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55572 states to 55572 states and 92515 transitions. [2024-11-08 15:08:25,186 INFO L78 Accepts]: Start accepts. Automaton has 55572 states and 92515 transitions. Word has length 114 [2024-11-08 15:08:25,186 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:08:25,186 INFO L471 AbstractCegarLoop]: Abstraction has 55572 states and 92515 transitions. [2024-11-08 15:08:25,187 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) [2024-11-08 15:08:25,187 INFO L276 IsEmpty]: Start isEmpty. Operand 55572 states and 92515 transitions. [2024-11-08 15:08:25,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2024-11-08 15:08:25,200 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:08:25,200 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] [2024-11-08 15:08:25,200 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-08 15:08:25,200 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:08:25,201 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:08:25,201 INFO L85 PathProgramCache]: Analyzing trace with hash 160442476, now seen corresponding path program 1 times [2024-11-08 15:08:25,201 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:08:25,201 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1027975195] [2024-11-08 15:08:25,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:08:25,201 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:08:25,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:08:25,243 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-08 15:08:25,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:08:25,250 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 15:08:25,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:08:25,252 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-08 15:08:25,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:08:25,253 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-08 15:08:25,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:08:25,255 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-08 15:08:25,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:08:25,256 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-08 15:08:25,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:08:25,264 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-08 15:08:25,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:08:25,271 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-11-08 15:08:25,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:08:25,272 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-11-08 15:08:25,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:08:25,274 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-11-08 15:08:25,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:08:25,276 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-11-08 15:08:25,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:08:25,277 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-08 15:08:25,277 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:08:25,277 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1027975195] [2024-11-08 15:08:25,277 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1027975195] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:08:25,277 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 15:08:25,277 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-08 15:08:25,277 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1546968266] [2024-11-08 15:08:25,277 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:08:25,278 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 15:08:25,278 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:08:25,278 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 15:08:25,278 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-08 15:08:25,278 INFO L87 Difference]: Start difference. First operand 55572 states and 92515 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) [2024-11-08 15:08:28,409 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:08:28,409 INFO L93 Difference]: Finished difference Result 103994 states and 176674 transitions. [2024-11-08 15:08:28,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-08 15:08:28,410 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 [2024-11-08 15:08:28,410 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:08:28,732 INFO L225 Difference]: With dead ends: 103994 [2024-11-08 15:08:28,733 INFO L226 Difference]: Without dead ends: 103839 [2024-11-08 15:08:28,774 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 [2024-11-08 15:08:28,775 INFO L432 NwaCegarLoop]: 195 mSDtfsCounter, 1147 mSDsluCounter, 696 mSDsCounter, 0 mSdLazyCounter, 1435 mSolverCounterSat, 359 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1161 SdHoareTripleChecker+Valid, 891 SdHoareTripleChecker+Invalid, 1794 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 359 IncrementalHoareTripleChecker+Valid, 1435 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-08 15:08:28,775 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1161 Valid, 891 Invalid, 1794 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [359 Valid, 1435 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-08 15:08:28,838 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103839 states. [2024-11-08 15:08:31,969 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103839 to 103646. [2024-11-08 15:08:32,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 103646 states, 88304 states have (on average 1.5736433230657727) internal successors, (138959), 88309 states have internal predecessors, (138959), 15320 states have call successors, (15320), 17 states have call predecessors, (15320), 21 states have return successors, (17511), 15319 states have call predecessors, (17511), 15319 states have call successors, (17511) [2024-11-08 15:08:32,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103646 states to 103646 states and 171790 transitions. [2024-11-08 15:08:32,786 INFO L78 Accepts]: Start accepts. Automaton has 103646 states and 171790 transitions. Word has length 115 [2024-11-08 15:08:32,786 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:08:32,786 INFO L471 AbstractCegarLoop]: Abstraction has 103646 states and 171790 transitions. [2024-11-08 15:08:32,787 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) [2024-11-08 15:08:32,787 INFO L276 IsEmpty]: Start isEmpty. Operand 103646 states and 171790 transitions. [2024-11-08 15:08:32,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2024-11-08 15:08:32,800 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:08:32,800 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] [2024-11-08 15:08:32,800 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-08 15:08:32,800 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:08:32,801 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:08:32,801 INFO L85 PathProgramCache]: Analyzing trace with hash 295305951, now seen corresponding path program 1 times [2024-11-08 15:08:32,801 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:08:32,801 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [664822927] [2024-11-08 15:08:32,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:08:32,801 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:08:32,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:08:32,861 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-08 15:08:32,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:08:32,869 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 15:08:32,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:08:32,871 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-08 15:08:32,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:08:32,873 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-08 15:08:32,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:08:32,874 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-08 15:08:32,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:08:32,875 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-08 15:08:32,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:08:32,882 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-08 15:08:32,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:08:32,889 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-08 15:08:32,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:08:32,890 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2024-11-08 15:08:32,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:08:32,891 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-11-08 15:08:32,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:08:32,892 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-11-08 15:08:32,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:08:32,911 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-08 15:08:32,914 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:08:32,914 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [664822927] [2024-11-08 15:08:32,914 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [664822927] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:08:32,914 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 15:08:32,914 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-08 15:08:32,915 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [85231872] [2024-11-08 15:08:32,915 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:08:32,919 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-08 15:08:32,919 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:08:32,920 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-08 15:08:32,920 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-08 15:08:32,920 INFO L87 Difference]: Start difference. First operand 103646 states and 171790 transitions. Second operand has 9 states, 9 states have (on average 8.777777777777779) internal successors, (79), 4 states have internal predecessors, (79), 1 states have call successors, (13), 5 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-08 15:08:36,064 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:08:36,066 INFO L93 Difference]: Finished difference Result 103829 states and 175351 transitions. [2024-11-08 15:08:36,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-08 15:08:36,066 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.777777777777779) internal successors, (79), 4 states have internal predecessors, (79), 1 states have call successors, (13), 5 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 1 states have call successors, (11) Word has length 116 [2024-11-08 15:08:36,066 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:08:36,088 INFO L225 Difference]: With dead ends: 103829 [2024-11-08 15:08:36,088 INFO L226 Difference]: Without dead ends: 0 [2024-11-08 15:08:36,192 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=109, Invalid=271, Unknown=0, NotChecked=0, Total=380 [2024-11-08 15:08:36,193 INFO L432 NwaCegarLoop]: 185 mSDtfsCounter, 1047 mSDsluCounter, 986 mSDsCounter, 0 mSdLazyCounter, 2432 mSolverCounterSat, 301 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1047 SdHoareTripleChecker+Valid, 1171 SdHoareTripleChecker+Invalid, 2733 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 301 IncrementalHoareTripleChecker+Valid, 2432 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-08 15:08:36,193 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1047 Valid, 1171 Invalid, 2733 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [301 Valid, 2432 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-08 15:08:36,194 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-08 15:08:36,194 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-08 15:08:36,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:08:36,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-08 15:08:36,211 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 116 [2024-11-08 15:08:36,211 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:08:36,212 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-08 15:08:36,212 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.777777777777779) internal successors, (79), 4 states have internal predecessors, (79), 1 states have call successors, (13), 5 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-08 15:08:36,212 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-08 15:08:36,212 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-08 15:08:36,214 INFO L782 garLoopResultBuilder]: Registering result SAFE for location outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-08 15:08:36,214 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-08 15:08:36,216 INFO L407 BasicCegarLoop]: Path program histogram: [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 15:08:36,218 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions.