./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/product-lines/email_spec4_product33.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 803cd42f Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/product-lines/email_spec4_product33.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 7d58750164873693a8e41f270259eb299f067753793be4bdf6f5449bb7376f85 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-803cd42-m [2024-11-22 01:57:09,703 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-22 01:57:09,780 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-22 01:57:09,788 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-22 01:57:09,790 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-22 01:57:09,822 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-22 01:57:09,823 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-22 01:57:09,823 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-22 01:57:09,824 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-22 01:57:09,825 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-22 01:57:09,826 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-22 01:57:09,826 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-22 01:57:09,827 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-22 01:57:09,828 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-22 01:57:09,828 INFO L153 SettingsManager]: * Use SBE=true [2024-11-22 01:57:09,828 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-22 01:57:09,829 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-22 01:57:09,829 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-22 01:57:09,829 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-22 01:57:09,829 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-22 01:57:09,830 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-22 01:57:09,830 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-22 01:57:09,830 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-22 01:57:09,831 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-22 01:57:09,831 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-22 01:57:09,831 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-22 01:57:09,832 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-22 01:57:09,832 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-22 01:57:09,832 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-22 01:57:09,833 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-22 01:57:09,833 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-22 01:57:09,833 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-22 01:57:09,833 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 01:57:09,834 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-22 01:57:09,834 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-22 01:57:09,834 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-22 01:57:09,835 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-22 01:57:09,836 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-22 01:57:09,836 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-22 01:57:09,836 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-22 01:57:09,836 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-22 01:57:09,837 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-22 01:57:09,837 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7d58750164873693a8e41f270259eb299f067753793be4bdf6f5449bb7376f85 [2024-11-22 01:57:10,129 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-22 01:57:10,161 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-22 01:57:10,164 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-22 01:57:10,165 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-22 01:57:10,166 INFO L274 PluginConnector]: CDTParser initialized [2024-11-22 01:57:10,167 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/email_spec4_product33.cil.c [2024-11-22 01:57:11,578 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-22 01:57:11,900 INFO L384 CDTParser]: Found 1 translation units. [2024-11-22 01:57:11,901 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/email_spec4_product33.cil.c [2024-11-22 01:57:11,923 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6cb2a8cd0/395f2c5c79e141c19f62742062d94f9c/FLAG7e94dc131 [2024-11-22 01:57:11,940 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6cb2a8cd0/395f2c5c79e141c19f62742062d94f9c [2024-11-22 01:57:11,942 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-22 01:57:11,944 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-22 01:57:11,945 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-22 01:57:11,945 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-22 01:57:11,950 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-22 01:57:11,951 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:57:11" (1/1) ... [2024-11-22 01:57:11,952 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2412e64c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:57:11, skipping insertion in model container [2024-11-22 01:57:11,952 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:57:11" (1/1) ... [2024-11-22 01:57:12,015 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-22 01:57:12,361 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_spec4_product33.cil.c[11229,11242] [2024-11-22 01:57:12,744 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 01:57:12,762 INFO L200 MainTranslator]: Completed pre-run [2024-11-22 01:57:12,772 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [48] [2024-11-22 01:57:12,774 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [414] [2024-11-22 01:57:12,774 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [423] [2024-11-22 01:57:12,775 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [750] [2024-11-22 01:57:12,775 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [969] [2024-11-22 01:57:12,775 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Client.i","") [1004] [2024-11-22 01:57:12,776 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"ClientLib.i","") [1415] [2024-11-22 01:57:12,776 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Email.i","") [2480] [2024-11-22 01:57:12,776 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Util.i","") [2617] [2024-11-22 01:57:12,777 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"SignForward_spec.i","") [2634] [2024-11-22 01:57:12,777 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"EmailLib.i","") [2661] [2024-11-22 01:57:12,808 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_spec4_product33.cil.c[11229,11242] [2024-11-22 01:57:12,870 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 01:57:12,907 INFO L204 MainTranslator]: Completed translation [2024-11-22 01:57:12,907 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:57:12 WrapperNode [2024-11-22 01:57:12,907 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-22 01:57:12,908 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-22 01:57:12,908 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-22 01:57:12,908 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-22 01:57:12,915 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:57:12" (1/1) ... [2024-11-22 01:57:12,940 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:57:12" (1/1) ... [2024-11-22 01:57:12,994 INFO L138 Inliner]: procedures = 134, calls = 212, calls flagged for inlining = 65, calls inlined = 60, statements flattened = 1079 [2024-11-22 01:57:12,995 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-22 01:57:12,995 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-22 01:57:12,995 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-22 01:57:12,996 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-22 01:57:13,007 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:57:12" (1/1) ... [2024-11-22 01:57:13,011 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:57:12" (1/1) ... [2024-11-22 01:57:13,021 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:57:12" (1/1) ... [2024-11-22 01:57:13,057 INFO L175 MemorySlicer]: Split 14 memory accesses to 4 slices as follows [2, 4, 4, 4]. 29 percent of accesses are in the largest equivalence class. The 14 initializations are split as follows [2, 4, 4, 4]. The 0 writes are split as follows [0, 0, 0, 0]. [2024-11-22 01:57:13,057 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:57:12" (1/1) ... [2024-11-22 01:57:13,057 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:57:12" (1/1) ... [2024-11-22 01:57:13,093 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:57:12" (1/1) ... [2024-11-22 01:57:13,107 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:57:12" (1/1) ... [2024-11-22 01:57:13,116 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:57:12" (1/1) ... [2024-11-22 01:57:13,127 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:57:12" (1/1) ... [2024-11-22 01:57:13,146 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-22 01:57:13,148 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-22 01:57:13,151 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-22 01:57:13,151 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-22 01:57:13,153 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:57:12" (1/1) ... [2024-11-22 01:57:13,160 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 01:57:13,176 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 01:57:13,199 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-22 01:57:13,203 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-22 01:57:13,258 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2024-11-22 01:57:13,259 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2024-11-22 01:57:13,259 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2024-11-22 01:57:13,259 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2024-11-22 01:57:13,259 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2024-11-22 01:57:13,259 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2024-11-22 01:57:13,259 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2024-11-22 01:57:13,260 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2024-11-22 01:57:13,260 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2024-11-22 01:57:13,261 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2024-11-22 01:57:13,261 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2024-11-22 01:57:13,261 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2024-11-22 01:57:13,261 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2024-11-22 01:57:13,261 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2024-11-22 01:57:13,262 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2024-11-22 01:57:13,262 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2024-11-22 01:57:13,262 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2024-11-22 01:57:13,263 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2024-11-22 01:57:13,263 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2024-11-22 01:57:13,263 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2024-11-22 01:57:13,263 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2024-11-22 01:57:13,264 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2024-11-22 01:57:13,265 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2024-11-22 01:57:13,265 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2024-11-22 01:57:13,265 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2024-11-22 01:57:13,265 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2024-11-22 01:57:13,265 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-22 01:57:13,265 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2024-11-22 01:57:13,265 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2024-11-22 01:57:13,265 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2024-11-22 01:57:13,265 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2024-11-22 01:57:13,266 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2024-11-22 01:57:13,266 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2024-11-22 01:57:13,266 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2024-11-22 01:57:13,266 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2024-11-22 01:57:13,266 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2024-11-22 01:57:13,266 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2024-11-22 01:57:13,267 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2024-11-22 01:57:13,267 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2024-11-22 01:57:13,267 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2024-11-22 01:57:13,268 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2024-11-22 01:57:13,268 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2024-11-22 01:57:13,268 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2024-11-22 01:57:13,268 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2024-11-22 01:57:13,268 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2024-11-22 01:57:13,268 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2024-11-22 01:57:13,268 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2024-11-22 01:57:13,269 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-22 01:57:13,269 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-22 01:57:13,269 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-22 01:57:13,269 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-22 01:57:13,269 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2024-11-22 01:57:13,269 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2024-11-22 01:57:13,269 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-22 01:57:13,269 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-22 01:57:13,525 INFO L238 CfgBuilder]: Building ICFG [2024-11-22 01:57:13,529 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-22 01:57:14,657 INFO L? ?]: Removed 501 outVars from TransFormulas that were not future-live. [2024-11-22 01:57:14,657 INFO L287 CfgBuilder]: Performing block encoding [2024-11-22 01:57:14,688 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-22 01:57:14,691 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-22 01:57:14,691 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:57:14 BoogieIcfgContainer [2024-11-22 01:57:14,691 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-22 01:57:14,694 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-22 01:57:14,694 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-22 01:57:14,697 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-22 01:57:14,698 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 01:57:11" (1/3) ... [2024-11-22 01:57:14,699 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@40ab185c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:57:14, skipping insertion in model container [2024-11-22 01:57:14,699 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:57:12" (2/3) ... [2024-11-22 01:57:14,700 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@40ab185c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:57:14, skipping insertion in model container [2024-11-22 01:57:14,701 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:57:14" (3/3) ... [2024-11-22 01:57:14,705 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec4_product33.cil.c [2024-11-22 01:57:14,722 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-22 01:57:14,723 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-22 01:57:14,806 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-22 01:57:14,813 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;@28926b9e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-22 01:57:14,813 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-22 01:57:14,821 INFO L276 IsEmpty]: Start isEmpty. Operand has 388 states, 299 states have (on average 1.5016722408026757) internal successors, (449), 303 states have internal predecessors, (449), 63 states have call successors, (63), 24 states have call predecessors, (63), 24 states have return successors, (63), 63 states have call predecessors, (63), 63 states have call successors, (63) [2024-11-22 01:57:14,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-11-22 01:57:14,847 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:57:14,848 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 01:57:14,849 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:57:14,858 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:57:14,859 INFO L85 PathProgramCache]: Analyzing trace with hash 1753391489, now seen corresponding path program 1 times [2024-11-22 01:57:14,869 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:57:14,870 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1921301859] [2024-11-22 01:57:14,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:57:14,871 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:57:15,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:57:15,591 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2024-11-22 01:57:15,591 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:57:15,591 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1921301859] [2024-11-22 01:57:15,592 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1921301859] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 01:57:15,593 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [963667176] [2024-11-22 01:57:15,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:57:15,593 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 01:57:15,594 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 01:57:15,596 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 01:57:15,598 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-22 01:57:15,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:57:15,975 INFO L255 TraceCheckSpWp]: Trace formula consists of 1026 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-22 01:57:15,987 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 01:57:16,017 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2024-11-22 01:57:16,019 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 01:57:16,019 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [963667176] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:57:16,020 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 01:57:16,020 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 5 [2024-11-22 01:57:16,023 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1562577647] [2024-11-22 01:57:16,023 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:57:16,028 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-22 01:57:16,028 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:57:16,053 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-22 01:57:16,054 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-22 01:57:16,059 INFO L87 Difference]: Start difference. First operand has 388 states, 299 states have (on average 1.5016722408026757) internal successors, (449), 303 states have internal predecessors, (449), 63 states have call successors, (63), 24 states have call predecessors, (63), 24 states have return successors, (63), 63 states have call predecessors, (63), 63 states have call successors, (63) Second operand has 2 states, 2 states have (on average 29.5) internal successors, (59), 2 states have internal predecessors, (59), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-22 01:57:16,128 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:57:16,129 INFO L93 Difference]: Finished difference Result 617 states and 896 transitions. [2024-11-22 01:57:16,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-22 01:57:16,132 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 29.5) internal successors, (59), 2 states have internal predecessors, (59), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 107 [2024-11-22 01:57:16,132 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:57:16,145 INFO L225 Difference]: With dead ends: 617 [2024-11-22 01:57:16,146 INFO L226 Difference]: Without dead ends: 381 [2024-11-22 01:57:16,152 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 108 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-22 01:57:16,157 INFO L432 NwaCegarLoop]: 571 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, 571 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 01:57:16,160 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 571 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 01:57:16,177 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 381 states. [2024-11-22 01:57:16,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 381 to 381. [2024-11-22 01:57:16,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 381 states, 293 states have (on average 1.4948805460750854) internal successors, (438), 296 states have internal predecessors, (438), 63 states have call successors, (63), 24 states have call predecessors, (63), 24 states have return successors, (62), 62 states have call predecessors, (62), 62 states have call successors, (62) [2024-11-22 01:57:16,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 381 states to 381 states and 563 transitions. [2024-11-22 01:57:16,245 INFO L78 Accepts]: Start accepts. Automaton has 381 states and 563 transitions. Word has length 107 [2024-11-22 01:57:16,246 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:57:16,247 INFO L471 AbstractCegarLoop]: Abstraction has 381 states and 563 transitions. [2024-11-22 01:57:16,247 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 29.5) internal successors, (59), 2 states have internal predecessors, (59), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-22 01:57:16,247 INFO L276 IsEmpty]: Start isEmpty. Operand 381 states and 563 transitions. [2024-11-22 01:57:16,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-11-22 01:57:16,255 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:57:16,255 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 01:57:16,265 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-22 01:57:16,457 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-11-22 01:57:16,458 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:57:16,459 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:57:16,459 INFO L85 PathProgramCache]: Analyzing trace with hash -1713735028, now seen corresponding path program 1 times [2024-11-22 01:57:16,459 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:57:16,460 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1547539859] [2024-11-22 01:57:16,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:57:16,460 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:57:16,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:57:16,720 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2024-11-22 01:57:16,720 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:57:16,720 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1547539859] [2024-11-22 01:57:16,721 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1547539859] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 01:57:16,721 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1988921726] [2024-11-22 01:57:16,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:57:16,721 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 01:57:16,721 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 01:57:16,726 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 01:57:16,728 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-22 01:57:17,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:57:17,080 INFO L255 TraceCheckSpWp]: Trace formula consists of 1027 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-22 01:57:17,088 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 01:57:17,127 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2024-11-22 01:57:17,128 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 01:57:17,128 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1988921726] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:57:17,131 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 01:57:17,131 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2024-11-22 01:57:17,131 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [20794703] [2024-11-22 01:57:17,132 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:57:17,133 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 01:57:17,133 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:57:17,134 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 01:57:17,134 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 01:57:17,134 INFO L87 Difference]: Start difference. First operand 381 states and 563 transitions. Second operand has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-22 01:57:17,196 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:57:17,196 INFO L93 Difference]: Finished difference Result 607 states and 877 transitions. [2024-11-22 01:57:17,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 01:57:17,197 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 108 [2024-11-22 01:57:17,197 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:57:17,202 INFO L225 Difference]: With dead ends: 607 [2024-11-22 01:57:17,202 INFO L226 Difference]: Without dead ends: 384 [2024-11-22 01:57:17,204 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 108 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 01:57:17,205 INFO L432 NwaCegarLoop]: 561 mSDtfsCounter, 1 mSDsluCounter, 559 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 1120 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 01:57:17,205 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 1120 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 01:57:17,207 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 384 states. [2024-11-22 01:57:17,226 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 384 to 383. [2024-11-22 01:57:17,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 383 states, 295 states have (on average 1.4915254237288136) internal successors, (440), 298 states have internal predecessors, (440), 63 states have call successors, (63), 24 states have call predecessors, (63), 24 states have return successors, (62), 62 states have call predecessors, (62), 62 states have call successors, (62) [2024-11-22 01:57:17,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 383 states to 383 states and 565 transitions. [2024-11-22 01:57:17,231 INFO L78 Accepts]: Start accepts. Automaton has 383 states and 565 transitions. Word has length 108 [2024-11-22 01:57:17,231 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:57:17,231 INFO L471 AbstractCegarLoop]: Abstraction has 383 states and 565 transitions. [2024-11-22 01:57:17,232 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-22 01:57:17,232 INFO L276 IsEmpty]: Start isEmpty. Operand 383 states and 565 transitions. [2024-11-22 01:57:17,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2024-11-22 01:57:17,235 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:57:17,235 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 01:57:17,245 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-22 01:57:17,439 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2024-11-22 01:57:17,440 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:57:17,440 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:57:17,440 INFO L85 PathProgramCache]: Analyzing trace with hash -2011102110, now seen corresponding path program 1 times [2024-11-22 01:57:17,440 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:57:17,441 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [97238188] [2024-11-22 01:57:17,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:57:17,441 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:57:17,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:57:17,741 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-22 01:57:17,743 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:57:17,744 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [97238188] [2024-11-22 01:57:17,744 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [97238188] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 01:57:17,744 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [544302748] [2024-11-22 01:57:17,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:57:17,744 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 01:57:17,745 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 01:57:17,746 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 01:57:17,750 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-22 01:57:18,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:57:18,060 INFO L255 TraceCheckSpWp]: Trace formula consists of 1052 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-22 01:57:18,064 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 01:57:18,092 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2024-11-22 01:57:18,092 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 01:57:18,092 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [544302748] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:57:18,093 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 01:57:18,093 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2024-11-22 01:57:18,093 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [720867334] [2024-11-22 01:57:18,093 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:57:18,094 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 01:57:18,094 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:57:18,094 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 01:57:18,095 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 01:57:18,095 INFO L87 Difference]: Start difference. First operand 383 states and 565 transitions. Second operand has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-22 01:57:18,133 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:57:18,134 INFO L93 Difference]: Finished difference Result 801 states and 1197 transitions. [2024-11-22 01:57:18,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 01:57:18,135 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 117 [2024-11-22 01:57:18,135 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:57:18,140 INFO L225 Difference]: With dead ends: 801 [2024-11-22 01:57:18,140 INFO L226 Difference]: Without dead ends: 445 [2024-11-22 01:57:18,142 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 117 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 01:57:18,143 INFO L432 NwaCegarLoop]: 577 mSDtfsCounter, 115 mSDsluCounter, 516 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 130 SdHoareTripleChecker+Valid, 1093 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 01:57:18,144 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [130 Valid, 1093 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 01:57:18,148 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 445 states. [2024-11-22 01:57:18,180 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 445 to 437. [2024-11-22 01:57:18,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 437 states, 338 states have (on average 1.5088757396449703) internal successors, (510), 341 states have internal predecessors, (510), 74 states have call successors, (74), 24 states have call predecessors, (74), 24 states have return successors, (73), 73 states have call predecessors, (73), 73 states have call successors, (73) [2024-11-22 01:57:18,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 437 states to 437 states and 657 transitions. [2024-11-22 01:57:18,185 INFO L78 Accepts]: Start accepts. Automaton has 437 states and 657 transitions. Word has length 117 [2024-11-22 01:57:18,185 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:57:18,190 INFO L471 AbstractCegarLoop]: Abstraction has 437 states and 657 transitions. [2024-11-22 01:57:18,191 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-22 01:57:18,191 INFO L276 IsEmpty]: Start isEmpty. Operand 437 states and 657 transitions. [2024-11-22 01:57:18,193 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2024-11-22 01:57:18,193 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:57:18,193 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 01:57:18,207 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-22 01:57:18,394 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 01:57:18,394 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:57:18,395 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:57:18,395 INFO L85 PathProgramCache]: Analyzing trace with hash 245871513, now seen corresponding path program 1 times [2024-11-22 01:57:18,395 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:57:18,395 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1393705033] [2024-11-22 01:57:18,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:57:18,396 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:57:18,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:57:18,574 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-22 01:57:18,575 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:57:18,575 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1393705033] [2024-11-22 01:57:18,575 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1393705033] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 01:57:18,575 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [98439522] [2024-11-22 01:57:18,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:57:18,576 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 01:57:18,576 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 01:57:18,578 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 01:57:18,580 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-22 01:57:18,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:57:18,907 INFO L255 TraceCheckSpWp]: Trace formula consists of 1057 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-22 01:57:18,912 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 01:57:18,973 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-11-22 01:57:18,976 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 01:57:18,976 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [98439522] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:57:18,977 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 01:57:18,977 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 8 [2024-11-22 01:57:18,977 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1831147608] [2024-11-22 01:57:18,977 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:57:18,978 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 01:57:18,978 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:57:18,979 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 01:57:18,979 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-11-22 01:57:18,979 INFO L87 Difference]: Start difference. First operand 437 states and 657 transitions. Second operand has 5 states, 4 states have (on average 19.5) internal successors, (78), 5 states have internal predecessors, (78), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (14), 2 states have call predecessors, (14), 3 states have call successors, (14) [2024-11-22 01:57:19,060 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:57:19,060 INFO L93 Difference]: Finished difference Result 865 states and 1304 transitions. [2024-11-22 01:57:19,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 01:57:19,061 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 19.5) internal successors, (78), 5 states have internal predecessors, (78), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (14), 2 states have call predecessors, (14), 3 states have call successors, (14) Word has length 118 [2024-11-22 01:57:19,062 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:57:19,066 INFO L225 Difference]: With dead ends: 865 [2024-11-22 01:57:19,066 INFO L226 Difference]: Without dead ends: 439 [2024-11-22 01:57:19,068 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 116 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-11-22 01:57:19,069 INFO L432 NwaCegarLoop]: 555 mSDtfsCounter, 2 mSDsluCounter, 1654 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 2209 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 01:57:19,072 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 2209 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 01:57:19,074 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 439 states. [2024-11-22 01:57:19,098 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 439 to 439. [2024-11-22 01:57:19,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 439 states, 339 states have (on average 1.5073746312684366) internal successors, (511), 343 states have internal predecessors, (511), 74 states have call successors, (74), 24 states have call predecessors, (74), 25 states have return successors, (75), 73 states have call predecessors, (75), 73 states have call successors, (75) [2024-11-22 01:57:19,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 439 states to 439 states and 660 transitions. [2024-11-22 01:57:19,103 INFO L78 Accepts]: Start accepts. Automaton has 439 states and 660 transitions. Word has length 118 [2024-11-22 01:57:19,103 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:57:19,104 INFO L471 AbstractCegarLoop]: Abstraction has 439 states and 660 transitions. [2024-11-22 01:57:19,104 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 19.5) internal successors, (78), 5 states have internal predecessors, (78), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (14), 2 states have call predecessors, (14), 3 states have call successors, (14) [2024-11-22 01:57:19,104 INFO L276 IsEmpty]: Start isEmpty. Operand 439 states and 660 transitions. [2024-11-22 01:57:19,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2024-11-22 01:57:19,107 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:57:19,107 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 01:57:19,118 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-22 01:57:19,307 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 01:57:19,308 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:57:19,308 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:57:19,309 INFO L85 PathProgramCache]: Analyzing trace with hash -1183278252, now seen corresponding path program 1 times [2024-11-22 01:57:19,309 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:57:19,309 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [610580975] [2024-11-22 01:57:19,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:57:19,309 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:57:19,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:57:19,491 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-11-22 01:57:19,491 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:57:19,491 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [610580975] [2024-11-22 01:57:19,492 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [610580975] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 01:57:19,492 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1094461268] [2024-11-22 01:57:19,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:57:19,492 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 01:57:19,492 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 01:57:19,495 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 01:57:19,496 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-22 01:57:19,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:57:19,797 INFO L255 TraceCheckSpWp]: Trace formula consists of 1058 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-22 01:57:19,802 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 01:57:19,861 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-11-22 01:57:19,861 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 01:57:19,861 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1094461268] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:57:19,861 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 01:57:19,861 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8] total 11 [2024-11-22 01:57:19,861 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2039051284] [2024-11-22 01:57:19,862 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:57:19,862 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 01:57:19,864 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:57:19,864 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 01:57:19,865 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2024-11-22 01:57:19,865 INFO L87 Difference]: Start difference. First operand 439 states and 660 transitions. Second operand has 5 states, 5 states have (on average 16.0) internal successors, (80), 5 states have internal predecessors, (80), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2024-11-22 01:57:19,940 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:57:19,941 INFO L93 Difference]: Finished difference Result 867 states and 1309 transitions. [2024-11-22 01:57:19,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 01:57:19,942 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 5 states have internal predecessors, (80), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 119 [2024-11-22 01:57:19,942 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:57:19,945 INFO L225 Difference]: With dead ends: 867 [2024-11-22 01:57:19,945 INFO L226 Difference]: Without dead ends: 441 [2024-11-22 01:57:19,947 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 126 GetRequests, 117 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2024-11-22 01:57:19,948 INFO L432 NwaCegarLoop]: 553 mSDtfsCounter, 2 mSDsluCounter, 1642 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 2195 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 01:57:19,948 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 2195 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 01:57:19,951 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 441 states. [2024-11-22 01:57:19,982 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 441 to 441. [2024-11-22 01:57:19,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 441 states, 340 states have (on average 1.5058823529411764) internal successors, (512), 345 states have internal predecessors, (512), 74 states have call successors, (74), 24 states have call predecessors, (74), 26 states have return successors, (80), 73 states have call predecessors, (80), 73 states have call successors, (80) [2024-11-22 01:57:19,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 441 states to 441 states and 666 transitions. [2024-11-22 01:57:19,990 INFO L78 Accepts]: Start accepts. Automaton has 441 states and 666 transitions. Word has length 119 [2024-11-22 01:57:19,991 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:57:19,991 INFO L471 AbstractCegarLoop]: Abstraction has 441 states and 666 transitions. [2024-11-22 01:57:19,991 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 5 states have internal predecessors, (80), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2024-11-22 01:57:19,991 INFO L276 IsEmpty]: Start isEmpty. Operand 441 states and 666 transitions. [2024-11-22 01:57:19,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2024-11-22 01:57:19,994 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:57:19,994 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 01:57:20,005 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-11-22 01:57:20,194 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 01:57:20,195 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:57:20,195 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:57:20,196 INFO L85 PathProgramCache]: Analyzing trace with hash -164798134, now seen corresponding path program 1 times [2024-11-22 01:57:20,196 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:57:20,196 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2038778578] [2024-11-22 01:57:20,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:57:20,196 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:57:20,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:57:20,372 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-22 01:57:20,373 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:57:20,373 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2038778578] [2024-11-22 01:57:20,373 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2038778578] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:57:20,373 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 01:57:20,373 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 01:57:20,373 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [96469647] [2024-11-22 01:57:20,373 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:57:20,374 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 01:57:20,374 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:57:20,375 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 01:57:20,375 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-22 01:57:20,375 INFO L87 Difference]: Start difference. First operand 441 states and 666 transitions. Second operand has 5 states, 4 states have (on average 19.0) internal successors, (76), 5 states have internal predecessors, (76), 3 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 3 states have call successors, (14) [2024-11-22 01:57:20,429 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:57:20,430 INFO L93 Difference]: Finished difference Result 859 states and 1300 transitions. [2024-11-22 01:57:20,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 01:57:20,431 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 19.0) internal successors, (76), 5 states have internal predecessors, (76), 3 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 3 states have call successors, (14) Word has length 120 [2024-11-22 01:57:20,431 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:57:20,435 INFO L225 Difference]: With dead ends: 859 [2024-11-22 01:57:20,435 INFO L226 Difference]: Without dead ends: 441 [2024-11-22 01:57:20,437 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-22 01:57:20,438 INFO L432 NwaCegarLoop]: 556 mSDtfsCounter, 2 mSDsluCounter, 1657 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 2213 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 01:57:20,438 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 2213 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 01:57:20,439 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 441 states. [2024-11-22 01:57:20,453 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 441 to 441. [2024-11-22 01:57:20,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 441 states, 340 states have (on average 1.5058823529411764) internal successors, (512), 345 states have internal predecessors, (512), 74 states have call successors, (74), 24 states have call predecessors, (74), 26 states have return successors, (79), 73 states have call predecessors, (79), 73 states have call successors, (79) [2024-11-22 01:57:20,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 441 states to 441 states and 665 transitions. [2024-11-22 01:57:20,458 INFO L78 Accepts]: Start accepts. Automaton has 441 states and 665 transitions. Word has length 120 [2024-11-22 01:57:20,459 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:57:20,459 INFO L471 AbstractCegarLoop]: Abstraction has 441 states and 665 transitions. [2024-11-22 01:57:20,459 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 19.0) internal successors, (76), 5 states have internal predecessors, (76), 3 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 3 states have call successors, (14) [2024-11-22 01:57:20,459 INFO L276 IsEmpty]: Start isEmpty. Operand 441 states and 665 transitions. [2024-11-22 01:57:20,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2024-11-22 01:57:20,461 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:57:20,462 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 01:57:20,462 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-22 01:57:20,462 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:57:20,462 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:57:20,463 INFO L85 PathProgramCache]: Analyzing trace with hash 586639335, now seen corresponding path program 2 times [2024-11-22 01:57:20,464 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:57:20,464 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1940923138] [2024-11-22 01:57:20,464 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-22 01:57:20,464 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:57:20,491 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-22 01:57:20,492 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-22 01:57:20,672 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2024-11-22 01:57:20,672 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:57:20,672 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1940923138] [2024-11-22 01:57:20,673 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1940923138] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:57:20,673 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 01:57:20,673 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-22 01:57:20,673 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1658618805] [2024-11-22 01:57:20,673 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:57:20,674 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-22 01:57:20,674 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:57:20,675 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-22 01:57:20,675 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-22 01:57:20,675 INFO L87 Difference]: Start difference. First operand 441 states and 665 transitions. Second operand has 8 states, 8 states have (on average 9.75) internal successors, (78), 7 states have internal predecessors, (78), 2 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (14), 3 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-22 01:57:21,088 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:57:21,088 INFO L93 Difference]: Finished difference Result 743 states and 1151 transitions. [2024-11-22 01:57:21,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-22 01:57:21,089 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.75) internal successors, (78), 7 states have internal predecessors, (78), 2 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (14), 3 states have call predecessors, (14), 2 states have call successors, (14) Word has length 121 [2024-11-22 01:57:21,090 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:57:21,095 INFO L225 Difference]: With dead ends: 743 [2024-11-22 01:57:21,095 INFO L226 Difference]: Without dead ends: 739 [2024-11-22 01:57:21,096 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=117, Unknown=0, NotChecked=0, Total=156 [2024-11-22 01:57:21,097 INFO L432 NwaCegarLoop]: 577 mSDtfsCounter, 546 mSDsluCounter, 2851 mSDsCounter, 0 mSdLazyCounter, 269 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 550 SdHoareTripleChecker+Valid, 3428 SdHoareTripleChecker+Invalid, 272 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 269 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-22 01:57:21,097 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [550 Valid, 3428 Invalid, 272 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 269 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-22 01:57:21,099 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 739 states. [2024-11-22 01:57:21,140 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 739 to 731. [2024-11-22 01:57:21,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 731 states, 571 states have (on average 1.542907180385289) internal successors, (881), 577 states have internal predecessors, (881), 117 states have call successors, (117), 41 states have call predecessors, (117), 42 states have return successors, (133), 115 states have call predecessors, (133), 116 states have call successors, (133) [2024-11-22 01:57:21,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 731 states to 731 states and 1131 transitions. [2024-11-22 01:57:21,148 INFO L78 Accepts]: Start accepts. Automaton has 731 states and 1131 transitions. Word has length 121 [2024-11-22 01:57:21,148 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:57:21,149 INFO L471 AbstractCegarLoop]: Abstraction has 731 states and 1131 transitions. [2024-11-22 01:57:21,149 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.75) internal successors, (78), 7 states have internal predecessors, (78), 2 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (14), 3 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-22 01:57:21,149 INFO L276 IsEmpty]: Start isEmpty. Operand 731 states and 1131 transitions. [2024-11-22 01:57:21,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2024-11-22 01:57:21,156 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:57:21,156 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 01:57:21,156 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-22 01:57:21,157 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:57:21,157 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:57:21,157 INFO L85 PathProgramCache]: Analyzing trace with hash 468766931, now seen corresponding path program 1 times [2024-11-22 01:57:21,159 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:57:21,159 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1115928611] [2024-11-22 01:57:21,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:57:21,160 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:57:21,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:57:21,299 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-22 01:57:21,300 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:57:21,300 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1115928611] [2024-11-22 01:57:21,300 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1115928611] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 01:57:21,300 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1303676753] [2024-11-22 01:57:21,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:57:21,300 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 01:57:21,301 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 01:57:21,303 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 01:57:21,307 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-22 01:57:21,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:57:21,602 INFO L255 TraceCheckSpWp]: Trace formula consists of 1063 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-22 01:57:21,607 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 01:57:21,654 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2024-11-22 01:57:21,654 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 01:57:21,655 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1303676753] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:57:21,655 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 01:57:21,655 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 8 [2024-11-22 01:57:21,655 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [125336657] [2024-11-22 01:57:21,655 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:57:21,656 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 01:57:21,656 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:57:21,657 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 01:57:21,657 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-11-22 01:57:21,658 INFO L87 Difference]: Start difference. First operand 731 states and 1131 transitions. Second operand has 5 states, 5 states have (on average 16.0) internal successors, (80), 5 states have internal predecessors, (80), 2 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-22 01:57:21,739 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:57:21,739 INFO L93 Difference]: Finished difference Result 1445 states and 2243 transitions. [2024-11-22 01:57:21,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 01:57:21,741 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 5 states have internal predecessors, (80), 2 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 124 [2024-11-22 01:57:21,741 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:57:21,746 INFO L225 Difference]: With dead ends: 1445 [2024-11-22 01:57:21,747 INFO L226 Difference]: Without dead ends: 737 [2024-11-22 01:57:21,750 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 128 GetRequests, 122 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-11-22 01:57:21,751 INFO L432 NwaCegarLoop]: 557 mSDtfsCounter, 1 mSDsluCounter, 1653 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 2210 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 01:57:21,751 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 2210 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 01:57:21,752 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 737 states. [2024-11-22 01:57:21,777 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 737 to 733. [2024-11-22 01:57:21,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 733 states, 572 states have (on average 1.5419580419580419) internal successors, (882), 579 states have internal predecessors, (882), 117 states have call successors, (117), 41 states have call predecessors, (117), 43 states have return successors, (136), 115 states have call predecessors, (136), 116 states have call successors, (136) [2024-11-22 01:57:21,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 733 states to 733 states and 1135 transitions. [2024-11-22 01:57:21,785 INFO L78 Accepts]: Start accepts. Automaton has 733 states and 1135 transitions. Word has length 124 [2024-11-22 01:57:21,785 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:57:21,786 INFO L471 AbstractCegarLoop]: Abstraction has 733 states and 1135 transitions. [2024-11-22 01:57:21,786 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 5 states have internal predecessors, (80), 2 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-22 01:57:21,786 INFO L276 IsEmpty]: Start isEmpty. Operand 733 states and 1135 transitions. [2024-11-22 01:57:21,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2024-11-22 01:57:21,790 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:57:21,790 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 01:57:21,800 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-11-22 01:57:21,994 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 01:57:21,995 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:57:21,996 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:57:21,996 INFO L85 PathProgramCache]: Analyzing trace with hash 1140840983, now seen corresponding path program 1 times [2024-11-22 01:57:21,996 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:57:21,996 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [784719047] [2024-11-22 01:57:21,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:57:21,997 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:57:22,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:57:22,163 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-22 01:57:22,164 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:57:22,164 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [784719047] [2024-11-22 01:57:22,164 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [784719047] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:57:22,164 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 01:57:22,165 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 01:57:22,165 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [93326260] [2024-11-22 01:57:22,165 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:57:22,165 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 01:57:22,166 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:57:22,166 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 01:57:22,167 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-22 01:57:22,167 INFO L87 Difference]: Start difference. First operand 733 states and 1135 transitions. Second operand has 5 states, 4 states have (on average 19.75) internal successors, (79), 5 states have internal predecessors, (79), 3 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 3 states have call successors, (14) [2024-11-22 01:57:22,222 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:57:22,223 INFO L93 Difference]: Finished difference Result 1435 states and 2229 transitions. [2024-11-22 01:57:22,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 01:57:22,224 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 19.75) internal successors, (79), 5 states have internal predecessors, (79), 3 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 3 states have call successors, (14) Word has length 122 [2024-11-22 01:57:22,224 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:57:22,229 INFO L225 Difference]: With dead ends: 1435 [2024-11-22 01:57:22,229 INFO L226 Difference]: Without dead ends: 737 [2024-11-22 01:57:22,232 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-22 01:57:22,233 INFO L432 NwaCegarLoop]: 557 mSDtfsCounter, 1 mSDsluCounter, 1659 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 2216 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 01:57:22,234 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 2216 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 01:57:22,235 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 737 states. [2024-11-22 01:57:22,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 737 to 737. [2024-11-22 01:57:22,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 737 states, 574 states have (on average 1.5400696864111498) internal successors, (884), 583 states have internal predecessors, (884), 117 states have call successors, (117), 41 states have call predecessors, (117), 45 states have return successors, (139), 115 states have call predecessors, (139), 116 states have call successors, (139) [2024-11-22 01:57:22,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 737 states to 737 states and 1140 transitions. [2024-11-22 01:57:22,265 INFO L78 Accepts]: Start accepts. Automaton has 737 states and 1140 transitions. Word has length 122 [2024-11-22 01:57:22,265 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:57:22,265 INFO L471 AbstractCegarLoop]: Abstraction has 737 states and 1140 transitions. [2024-11-22 01:57:22,265 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 19.75) internal successors, (79), 5 states have internal predecessors, (79), 3 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 3 states have call successors, (14) [2024-11-22 01:57:22,266 INFO L276 IsEmpty]: Start isEmpty. Operand 737 states and 1140 transitions. [2024-11-22 01:57:22,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2024-11-22 01:57:22,269 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:57:22,269 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 01:57:22,269 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-22 01:57:22,269 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:57:22,270 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:57:22,270 INFO L85 PathProgramCache]: Analyzing trace with hash -1895431239, now seen corresponding path program 1 times [2024-11-22 01:57:22,270 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:57:22,270 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1275832617] [2024-11-22 01:57:22,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:57:22,270 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:57:22,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:57:22,414 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-11-22 01:57:22,415 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:57:22,415 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1275832617] [2024-11-22 01:57:22,415 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1275832617] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:57:22,415 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 01:57:22,415 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-22 01:57:22,415 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [899390818] [2024-11-22 01:57:22,415 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:57:22,416 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-22 01:57:22,416 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:57:22,417 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-22 01:57:22,417 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-22 01:57:22,417 INFO L87 Difference]: Start difference. First operand 737 states and 1140 transitions. Second operand has 8 states, 7 states have (on average 11.857142857142858) internal successors, (83), 8 states have internal predecessors, (83), 4 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) [2024-11-22 01:57:22,551 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:57:22,552 INFO L93 Difference]: Finished difference Result 1433 states and 2220 transitions. [2024-11-22 01:57:22,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-22 01:57:22,553 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 11.857142857142858) internal successors, (83), 8 states have internal predecessors, (83), 4 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) Word has length 123 [2024-11-22 01:57:22,553 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:57:22,558 INFO L225 Difference]: With dead ends: 1433 [2024-11-22 01:57:22,558 INFO L226 Difference]: Without dead ends: 741 [2024-11-22 01:57:22,561 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-11-22 01:57:22,561 INFO L432 NwaCegarLoop]: 547 mSDtfsCounter, 7 mSDsluCounter, 3253 mSDsCounter, 0 mSdLazyCounter, 145 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 3800 SdHoareTripleChecker+Invalid, 149 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 145 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 01:57:22,562 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 3800 Invalid, 149 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 145 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 01:57:22,563 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 741 states. [2024-11-22 01:57:22,585 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 741 to 739. [2024-11-22 01:57:22,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 739 states, 576 states have (on average 1.5381944444444444) internal successors, (886), 584 states have internal predecessors, (886), 117 states have call successors, (117), 42 states have call predecessors, (117), 45 states have return successors, (137), 115 states have call predecessors, (137), 116 states have call successors, (137) [2024-11-22 01:57:22,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 739 states to 739 states and 1140 transitions. [2024-11-22 01:57:22,592 INFO L78 Accepts]: Start accepts. Automaton has 739 states and 1140 transitions. Word has length 123 [2024-11-22 01:57:22,592 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:57:22,592 INFO L471 AbstractCegarLoop]: Abstraction has 739 states and 1140 transitions. [2024-11-22 01:57:22,593 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 11.857142857142858) internal successors, (83), 8 states have internal predecessors, (83), 4 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) [2024-11-22 01:57:22,593 INFO L276 IsEmpty]: Start isEmpty. Operand 739 states and 1140 transitions. [2024-11-22 01:57:22,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2024-11-22 01:57:22,596 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:57:22,596 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 01:57:22,596 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-22 01:57:22,596 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:57:22,597 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:57:22,597 INFO L85 PathProgramCache]: Analyzing trace with hash -2107929571, now seen corresponding path program 2 times [2024-11-22 01:57:22,597 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:57:22,597 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1334297328] [2024-11-22 01:57:22,597 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-22 01:57:22,598 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:57:22,621 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-22 01:57:22,621 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-22 01:57:22,766 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2024-11-22 01:57:22,767 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:57:22,767 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1334297328] [2024-11-22 01:57:22,767 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1334297328] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:57:22,767 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 01:57:22,768 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-22 01:57:22,768 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [152751599] [2024-11-22 01:57:22,768 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:57:22,768 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-22 01:57:22,768 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:57:22,769 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-22 01:57:22,769 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-22 01:57:22,769 INFO L87 Difference]: Start difference. First operand 739 states and 1140 transitions. Second operand has 8 states, 8 states have (on average 10.25) internal successors, (82), 7 states have internal predecessors, (82), 2 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (14), 3 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-22 01:57:23,128 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:57:23,128 INFO L93 Difference]: Finished difference Result 1339 states and 2106 transitions. [2024-11-22 01:57:23,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-22 01:57:23,129 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.25) internal successors, (82), 7 states have internal predecessors, (82), 2 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (14), 3 states have call predecessors, (14), 2 states have call successors, (14) Word has length 124 [2024-11-22 01:57:23,129 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:57:23,139 INFO L225 Difference]: With dead ends: 1339 [2024-11-22 01:57:23,139 INFO L226 Difference]: Without dead ends: 1333 [2024-11-22 01:57:23,141 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=117, Unknown=0, NotChecked=0, Total=156 [2024-11-22 01:57:23,141 INFO L432 NwaCegarLoop]: 577 mSDtfsCounter, 535 mSDsluCounter, 2851 mSDsCounter, 0 mSdLazyCounter, 251 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 536 SdHoareTripleChecker+Valid, 3428 SdHoareTripleChecker+Invalid, 254 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 251 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-22 01:57:23,141 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [536 Valid, 3428 Invalid, 254 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 251 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-22 01:57:23,143 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1333 states. [2024-11-22 01:57:23,189 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1333 to 1163. [2024-11-22 01:57:23,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1163 states, 917 states have (on average 1.569247546346783) internal successors, (1439), 928 states have internal predecessors, (1439), 179 states have call successors, (179), 58 states have call predecessors, (179), 66 states have return successors, (235), 179 states have call predecessors, (235), 178 states have call successors, (235) [2024-11-22 01:57:23,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1163 states to 1163 states and 1853 transitions. [2024-11-22 01:57:23,199 INFO L78 Accepts]: Start accepts. Automaton has 1163 states and 1853 transitions. Word has length 124 [2024-11-22 01:57:23,200 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:57:23,200 INFO L471 AbstractCegarLoop]: Abstraction has 1163 states and 1853 transitions. [2024-11-22 01:57:23,201 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.25) internal successors, (82), 7 states have internal predecessors, (82), 2 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (14), 3 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-22 01:57:23,201 INFO L276 IsEmpty]: Start isEmpty. Operand 1163 states and 1853 transitions. [2024-11-22 01:57:23,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2024-11-22 01:57:23,206 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:57:23,206 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 01:57:23,206 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-22 01:57:23,206 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:57:23,207 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:57:23,207 INFO L85 PathProgramCache]: Analyzing trace with hash -671899875, now seen corresponding path program 1 times [2024-11-22 01:57:23,207 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:57:23,207 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [335717049] [2024-11-22 01:57:23,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:57:23,208 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:57:23,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:57:23,346 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-11-22 01:57:23,346 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:57:23,346 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [335717049] [2024-11-22 01:57:23,346 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [335717049] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:57:23,347 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 01:57:23,347 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-22 01:57:23,347 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [602711801] [2024-11-22 01:57:23,347 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:57:23,347 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-22 01:57:23,348 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:57:23,348 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-22 01:57:23,348 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-22 01:57:23,349 INFO L87 Difference]: Start difference. First operand 1163 states and 1853 transitions. Second operand has 8 states, 7 states have (on average 12.142857142857142) internal successors, (85), 8 states have internal predecessors, (85), 4 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) [2024-11-22 01:57:23,525 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:57:23,526 INFO L93 Difference]: Finished difference Result 2265 states and 3620 transitions. [2024-11-22 01:57:23,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-22 01:57:23,527 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 12.142857142857142) internal successors, (85), 8 states have internal predecessors, (85), 4 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) Word has length 125 [2024-11-22 01:57:23,527 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:57:23,534 INFO L225 Difference]: With dead ends: 2265 [2024-11-22 01:57:23,536 INFO L226 Difference]: Without dead ends: 1171 [2024-11-22 01:57:23,540 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-11-22 01:57:23,540 INFO L432 NwaCegarLoop]: 549 mSDtfsCounter, 5 mSDsluCounter, 3265 mSDsCounter, 0 mSdLazyCounter, 151 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 3814 SdHoareTripleChecker+Invalid, 156 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 151 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 01:57:23,541 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 3814 Invalid, 156 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 151 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 01:57:23,542 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1171 states. [2024-11-22 01:57:23,585 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1171 to 1167. [2024-11-22 01:57:23,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1167 states, 921 states have (on average 1.5667752442996743) internal successors, (1443), 931 states have internal predecessors, (1443), 179 states have call successors, (179), 59 states have call predecessors, (179), 66 states have return successors, (231), 179 states have call predecessors, (231), 178 states have call successors, (231) [2024-11-22 01:57:23,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1167 states to 1167 states and 1853 transitions. [2024-11-22 01:57:23,597 INFO L78 Accepts]: Start accepts. Automaton has 1167 states and 1853 transitions. Word has length 125 [2024-11-22 01:57:23,597 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:57:23,597 INFO L471 AbstractCegarLoop]: Abstraction has 1167 states and 1853 transitions. [2024-11-22 01:57:23,597 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 12.142857142857142) internal successors, (85), 8 states have internal predecessors, (85), 4 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) [2024-11-22 01:57:23,597 INFO L276 IsEmpty]: Start isEmpty. Operand 1167 states and 1853 transitions. [2024-11-22 01:57:23,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2024-11-22 01:57:23,603 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:57:23,603 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 01:57:23,603 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-22 01:57:23,603 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:57:23,603 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:57:23,604 INFO L85 PathProgramCache]: Analyzing trace with hash 897560860, now seen corresponding path program 1 times [2024-11-22 01:57:23,604 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:57:23,604 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [4507771] [2024-11-22 01:57:23,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:57:23,604 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:57:23,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:57:23,776 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2024-11-22 01:57:23,776 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:57:23,776 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [4507771] [2024-11-22 01:57:23,776 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [4507771] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 01:57:23,777 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1788694580] [2024-11-22 01:57:23,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:57:23,777 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 01:57:23,777 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 01:57:23,779 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 01:57:23,781 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-22 01:57:24,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:57:24,082 INFO L255 TraceCheckSpWp]: Trace formula consists of 1065 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-22 01:57:24,086 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 01:57:24,125 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2024-11-22 01:57:24,126 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 01:57:24,236 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2024-11-22 01:57:24,239 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1788694580] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-22 01:57:24,239 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-22 01:57:24,239 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 4, 4] total 11 [2024-11-22 01:57:24,239 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1480671528] [2024-11-22 01:57:24,239 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-22 01:57:24,240 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-22 01:57:24,240 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:57:24,241 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-22 01:57:24,241 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2024-11-22 01:57:24,242 INFO L87 Difference]: Start difference. First operand 1167 states and 1853 transitions. Second operand has 11 states, 10 states have (on average 13.8) internal successors, (138), 11 states have internal predecessors, (138), 4 states have call successors, (28), 2 states have call predecessors, (28), 3 states have return successors, (26), 3 states have call predecessors, (26), 4 states have call successors, (26) [2024-11-22 01:57:25,030 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:57:25,030 INFO L93 Difference]: Finished difference Result 3695 states and 6166 transitions. [2024-11-22 01:57:25,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-22 01:57:25,031 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 13.8) internal successors, (138), 11 states have internal predecessors, (138), 4 states have call successors, (28), 2 states have call predecessors, (28), 3 states have return successors, (26), 3 states have call predecessors, (26), 4 states have call successors, (26) Word has length 126 [2024-11-22 01:57:25,031 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:57:25,049 INFO L225 Difference]: With dead ends: 3695 [2024-11-22 01:57:25,049 INFO L226 Difference]: Without dead ends: 2611 [2024-11-22 01:57:25,055 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 270 GetRequests, 249 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=106, Invalid=400, Unknown=0, NotChecked=0, Total=506 [2024-11-22 01:57:25,056 INFO L432 NwaCegarLoop]: 550 mSDtfsCounter, 1337 mSDsluCounter, 3383 mSDsCounter, 0 mSdLazyCounter, 511 mSolverCounterSat, 102 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1337 SdHoareTripleChecker+Valid, 3933 SdHoareTripleChecker+Invalid, 613 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 102 IncrementalHoareTripleChecker+Valid, 511 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-22 01:57:25,056 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1337 Valid, 3933 Invalid, 613 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [102 Valid, 511 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-22 01:57:25,059 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2611 states. [2024-11-22 01:57:25,174 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2611 to 2581. [2024-11-22 01:57:25,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2581 states, 2079 states have (on average 1.6012506012506011) internal successors, (3329), 2088 states have internal predecessors, (3329), 435 states have call successors, (435), 60 states have call predecessors, (435), 66 states have return successors, (567), 435 states have call predecessors, (567), 434 states have call successors, (567) [2024-11-22 01:57:25,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2581 states to 2581 states and 4331 transitions. [2024-11-22 01:57:25,192 INFO L78 Accepts]: Start accepts. Automaton has 2581 states and 4331 transitions. Word has length 126 [2024-11-22 01:57:25,192 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:57:25,192 INFO L471 AbstractCegarLoop]: Abstraction has 2581 states and 4331 transitions. [2024-11-22 01:57:25,193 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 13.8) internal successors, (138), 11 states have internal predecessors, (138), 4 states have call successors, (28), 2 states have call predecessors, (28), 3 states have return successors, (26), 3 states have call predecessors, (26), 4 states have call successors, (26) [2024-11-22 01:57:25,193 INFO L276 IsEmpty]: Start isEmpty. Operand 2581 states and 4331 transitions. [2024-11-22 01:57:25,205 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2024-11-22 01:57:25,206 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:57:25,206 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 01:57:25,216 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-22 01:57:25,410 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 01:57:25,411 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:57:25,412 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:57:25,412 INFO L85 PathProgramCache]: Analyzing trace with hash 2049655467, now seen corresponding path program 1 times [2024-11-22 01:57:25,412 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:57:25,412 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [777296035] [2024-11-22 01:57:25,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:57:25,413 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:57:25,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:57:25,541 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 3 proven. 5 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2024-11-22 01:57:25,541 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:57:25,541 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [777296035] [2024-11-22 01:57:25,542 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [777296035] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 01:57:25,542 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [482642025] [2024-11-22 01:57:25,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:57:25,542 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 01:57:25,542 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 01:57:25,545 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 01:57:25,546 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-22 01:57:25,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:57:25,887 INFO L255 TraceCheckSpWp]: Trace formula consists of 1054 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-22 01:57:25,890 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 01:57:25,907 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2024-11-22 01:57:25,909 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 01:57:25,909 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [482642025] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:57:25,909 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 01:57:25,909 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2024-11-22 01:57:25,909 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [852312606] [2024-11-22 01:57:25,910 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:57:25,910 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 01:57:25,910 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:57:25,911 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 01:57:25,911 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 01:57:25,911 INFO L87 Difference]: Start difference. First operand 2581 states and 4331 transitions. Second operand has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-22 01:57:26,037 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:57:26,037 INFO L93 Difference]: Finished difference Result 6197 states and 10572 transitions. [2024-11-22 01:57:26,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 01:57:26,039 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 130 [2024-11-22 01:57:26,039 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:57:26,064 INFO L225 Difference]: With dead ends: 6197 [2024-11-22 01:57:26,065 INFO L226 Difference]: Without dead ends: 3891 [2024-11-22 01:57:26,076 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 134 GetRequests, 130 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 01:57:26,077 INFO L432 NwaCegarLoop]: 580 mSDtfsCounter, 112 mSDsluCounter, 553 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 127 SdHoareTripleChecker+Valid, 1133 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 01:57:26,077 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [127 Valid, 1133 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 01:57:26,082 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3891 states. [2024-11-22 01:57:26,278 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3891 to 3881. [2024-11-22 01:57:26,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3881 states, 3123 states have (on average 1.6103105987832214) internal successors, (5029), 3132 states have internal predecessors, (5029), 691 states have call successors, (691), 60 states have call predecessors, (691), 66 states have return successors, (903), 691 states have call predecessors, (903), 690 states have call successors, (903) [2024-11-22 01:57:26,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3881 states to 3881 states and 6623 transitions. [2024-11-22 01:57:26,305 INFO L78 Accepts]: Start accepts. Automaton has 3881 states and 6623 transitions. Word has length 130 [2024-11-22 01:57:26,306 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:57:26,306 INFO L471 AbstractCegarLoop]: Abstraction has 3881 states and 6623 transitions. [2024-11-22 01:57:26,306 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-22 01:57:26,306 INFO L276 IsEmpty]: Start isEmpty. Operand 3881 states and 6623 transitions. [2024-11-22 01:57:26,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2024-11-22 01:57:26,328 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:57:26,328 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 01:57:26,338 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2024-11-22 01:57:26,528 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2024-11-22 01:57:26,529 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:57:26,530 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:57:26,530 INFO L85 PathProgramCache]: Analyzing trace with hash -340894760, now seen corresponding path program 1 times [2024-11-22 01:57:26,530 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:57:26,530 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1783167974] [2024-11-22 01:57:26,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:57:26,530 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:57:26,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:57:26,635 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2024-11-22 01:57:26,635 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:57:26,636 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1783167974] [2024-11-22 01:57:26,636 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1783167974] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:57:26,636 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 01:57:26,636 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 01:57:26,636 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [327908770] [2024-11-22 01:57:26,636 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:57:26,636 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 01:57:26,637 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:57:26,637 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 01:57:26,637 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 01:57:26,638 INFO L87 Difference]: Start difference. First operand 3881 states and 6623 transitions. Second operand has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-22 01:57:26,795 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:57:26,795 INFO L93 Difference]: Finished difference Result 9417 states and 16148 transitions. [2024-11-22 01:57:26,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 01:57:26,796 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 130 [2024-11-22 01:57:26,796 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:57:26,833 INFO L225 Difference]: With dead ends: 9417 [2024-11-22 01:57:26,833 INFO L226 Difference]: Without dead ends: 6023 [2024-11-22 01:57:26,853 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 01:57:26,854 INFO L432 NwaCegarLoop]: 563 mSDtfsCounter, 110 mSDsluCounter, 555 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 125 SdHoareTripleChecker+Valid, 1118 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 01:57:26,854 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [125 Valid, 1118 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 01:57:26,860 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6023 states. [2024-11-22 01:57:27,167 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6023 to 6013. [2024-11-22 01:57:27,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6013 states, 4875 states have (on average 1.6108717948717948) internal successors, (7853), 4884 states have internal predecessors, (7853), 1071 states have call successors, (1071), 60 states have call predecessors, (1071), 66 states have return successors, (1347), 1071 states have call predecessors, (1347), 1070 states have call successors, (1347) [2024-11-22 01:57:27,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6013 states to 6013 states and 10271 transitions. [2024-11-22 01:57:27,205 INFO L78 Accepts]: Start accepts. Automaton has 6013 states and 10271 transitions. Word has length 130 [2024-11-22 01:57:27,205 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:57:27,206 INFO L471 AbstractCegarLoop]: Abstraction has 6013 states and 10271 transitions. [2024-11-22 01:57:27,206 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-22 01:57:27,206 INFO L276 IsEmpty]: Start isEmpty. Operand 6013 states and 10271 transitions. [2024-11-22 01:57:27,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2024-11-22 01:57:27,238 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:57:27,238 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 01:57:27,239 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-22 01:57:27,239 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:57:27,239 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:57:27,240 INFO L85 PathProgramCache]: Analyzing trace with hash -1296102599, now seen corresponding path program 1 times [2024-11-22 01:57:27,240 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:57:27,240 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [576070566] [2024-11-22 01:57:27,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:57:27,240 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:57:27,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:57:27,358 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 3 proven. 5 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2024-11-22 01:57:27,359 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:57:27,360 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [576070566] [2024-11-22 01:57:27,360 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [576070566] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 01:57:27,360 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [793555310] [2024-11-22 01:57:27,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:57:27,360 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 01:57:27,361 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 01:57:27,364 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 01:57:27,366 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-22 01:57:27,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:57:27,684 INFO L255 TraceCheckSpWp]: Trace formula consists of 1064 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-22 01:57:27,687 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 01:57:27,711 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2024-11-22 01:57:27,711 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 01:57:27,712 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [793555310] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:57:27,712 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 01:57:27,712 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2024-11-22 01:57:27,712 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [715100891] [2024-11-22 01:57:27,712 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:57:27,712 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 01:57:27,712 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:57:27,713 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 01:57:27,713 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 01:57:27,713 INFO L87 Difference]: Start difference. First operand 6013 states and 10271 transitions. Second operand has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-22 01:57:28,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:57:28,098 INFO L93 Difference]: Finished difference Result 14245 states and 24524 transitions. [2024-11-22 01:57:28,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 01:57:28,099 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 132 [2024-11-22 01:57:28,099 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:57:28,176 INFO L225 Difference]: With dead ends: 14245 [2024-11-22 01:57:28,176 INFO L226 Difference]: Without dead ends: 9259 [2024-11-22 01:57:28,201 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 136 GetRequests, 132 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 01:57:28,202 INFO L432 NwaCegarLoop]: 561 mSDtfsCounter, 108 mSDsluCounter, 552 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 123 SdHoareTripleChecker+Valid, 1113 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 01:57:28,202 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [123 Valid, 1113 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 01:57:28,213 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9259 states. [2024-11-22 01:57:28,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9259 to 9249. [2024-11-22 01:57:28,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9249 states, 7619 states have (on average 1.611891324320777) internal successors, (12281), 7628 states have internal predecessors, (12281), 1563 states have call successors, (1563), 60 states have call predecessors, (1563), 66 states have return successors, (2007), 1563 states have call predecessors, (2007), 1562 states have call successors, (2007) [2024-11-22 01:57:28,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9249 states to 9249 states and 15851 transitions. [2024-11-22 01:57:28,713 INFO L78 Accepts]: Start accepts. Automaton has 9249 states and 15851 transitions. Word has length 132 [2024-11-22 01:57:28,713 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:57:28,714 INFO L471 AbstractCegarLoop]: Abstraction has 9249 states and 15851 transitions. [2024-11-22 01:57:28,714 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-22 01:57:28,715 INFO L276 IsEmpty]: Start isEmpty. Operand 9249 states and 15851 transitions. [2024-11-22 01:57:28,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2024-11-22 01:57:28,754 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:57:28,754 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 01:57:28,765 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2024-11-22 01:57:28,955 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2024-11-22 01:57:28,956 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:57:28,956 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:57:28,956 INFO L85 PathProgramCache]: Analyzing trace with hash -1233317447, now seen corresponding path program 1 times [2024-11-22 01:57:28,956 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:57:28,956 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1307115064] [2024-11-22 01:57:28,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:57:28,957 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:57:28,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:57:29,030 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2024-11-22 01:57:29,030 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:57:29,030 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1307115064] [2024-11-22 01:57:29,031 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1307115064] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:57:29,031 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 01:57:29,031 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 01:57:29,031 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2094008869] [2024-11-22 01:57:29,031 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:57:29,031 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 01:57:29,031 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:57:29,032 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 01:57:29,032 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 01:57:29,032 INFO L87 Difference]: Start difference. First operand 9249 states and 15851 transitions. Second operand has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-22 01:57:29,466 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:57:29,466 INFO L93 Difference]: Finished difference Result 21781 states and 37616 transitions. [2024-11-22 01:57:29,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 01:57:29,467 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 132 [2024-11-22 01:57:29,468 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:57:29,545 INFO L225 Difference]: With dead ends: 21781 [2024-11-22 01:57:29,546 INFO L226 Difference]: Without dead ends: 14435 [2024-11-22 01:57:29,577 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 01:57:29,579 INFO L432 NwaCegarLoop]: 561 mSDtfsCounter, 106 mSDsluCounter, 552 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 121 SdHoareTripleChecker+Valid, 1113 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 01:57:29,579 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [121 Valid, 1113 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 01:57:29,596 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14435 states. [2024-11-22 01:57:30,187 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14435 to 14425. [2024-11-22 01:57:30,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14425 states, 12079 states have (on average 1.6121367662886001) internal successors, (19473), 12088 states have internal predecessors, (19473), 2279 states have call successors, (2279), 60 states have call predecessors, (2279), 66 states have return successors, (3003), 2279 states have call predecessors, (3003), 2278 states have call successors, (3003) [2024-11-22 01:57:30,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14425 states to 14425 states and 24755 transitions. [2024-11-22 01:57:30,277 INFO L78 Accepts]: Start accepts. Automaton has 14425 states and 24755 transitions. Word has length 132 [2024-11-22 01:57:30,277 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:57:30,277 INFO L471 AbstractCegarLoop]: Abstraction has 14425 states and 24755 transitions. [2024-11-22 01:57:30,278 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-22 01:57:30,278 INFO L276 IsEmpty]: Start isEmpty. Operand 14425 states and 24755 transitions. [2024-11-22 01:57:30,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2024-11-22 01:57:30,318 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:57:30,318 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 01:57:30,319 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-22 01:57:30,319 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:57:30,319 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:57:30,319 INFO L85 PathProgramCache]: Analyzing trace with hash 356066170, now seen corresponding path program 1 times [2024-11-22 01:57:30,319 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:57:30,319 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1452594367] [2024-11-22 01:57:30,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:57:30,320 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:57:30,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:57:30,492 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2024-11-22 01:57:30,492 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:57:30,492 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1452594367] [2024-11-22 01:57:30,492 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1452594367] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:57:30,492 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 01:57:30,493 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 01:57:30,493 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [687331291] [2024-11-22 01:57:30,493 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:57:30,493 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 01:57:30,493 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:57:30,495 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 01:57:30,495 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 01:57:30,495 INFO L87 Difference]: Start difference. First operand 14425 states and 24755 transitions. Second operand has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 states have internal predecessors, (88), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-22 01:57:31,236 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:57:31,237 INFO L93 Difference]: Finished difference Result 34193 states and 59160 transitions. [2024-11-22 01:57:31,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 01:57:31,238 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 states have internal predecessors, (88), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 133 [2024-11-22 01:57:31,238 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:57:31,345 INFO L225 Difference]: With dead ends: 34193 [2024-11-22 01:57:31,346 INFO L226 Difference]: Without dead ends: 22999 [2024-11-22 01:57:31,395 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 01:57:31,396 INFO L432 NwaCegarLoop]: 574 mSDtfsCounter, 104 mSDsluCounter, 551 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 119 SdHoareTripleChecker+Valid, 1125 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 01:57:31,397 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [119 Valid, 1125 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 01:57:31,426 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22999 states. [2024-11-22 01:57:32,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22999 to 22989. [2024-11-22 01:57:32,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22989 states, 19139 states have (on average 1.6038978003030462) internal successors, (30697), 19148 states have internal predecessors, (30697), 3783 states have call successors, (3783), 60 states have call predecessors, (3783), 66 states have return successors, (4995), 3783 states have call predecessors, (4995), 3782 states have call successors, (4995) [2024-11-22 01:57:32,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22989 states to 22989 states and 39475 transitions. [2024-11-22 01:57:32,564 INFO L78 Accepts]: Start accepts. Automaton has 22989 states and 39475 transitions. Word has length 133 [2024-11-22 01:57:32,565 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:57:32,565 INFO L471 AbstractCegarLoop]: Abstraction has 22989 states and 39475 transitions. [2024-11-22 01:57:32,565 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 states have internal predecessors, (88), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-22 01:57:32,565 INFO L276 IsEmpty]: Start isEmpty. Operand 22989 states and 39475 transitions. [2024-11-22 01:57:32,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-11-22 01:57:32,626 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:57:32,627 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 01:57:32,627 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-22 01:57:32,627 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:57:32,627 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:57:32,628 INFO L85 PathProgramCache]: Analyzing trace with hash 1462617149, now seen corresponding path program 1 times [2024-11-22 01:57:32,628 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:57:32,628 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [767718697] [2024-11-22 01:57:32,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:57:32,628 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:57:32,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:57:32,694 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2024-11-22 01:57:32,695 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:57:32,695 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [767718697] [2024-11-22 01:57:32,695 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [767718697] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:57:32,695 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 01:57:32,695 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 01:57:32,697 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1341134280] [2024-11-22 01:57:32,697 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:57:32,698 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 01:57:32,698 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:57:32,698 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 01:57:32,699 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 01:57:32,699 INFO L87 Difference]: Start difference. First operand 22989 states and 39475 transitions. Second operand has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-22 01:57:34,115 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:57:34,115 INFO L93 Difference]: Finished difference Result 56661 states and 97680 transitions. [2024-11-22 01:57:34,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 01:57:34,116 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 134 [2024-11-22 01:57:34,116 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:57:34,314 INFO L225 Difference]: With dead ends: 56661 [2024-11-22 01:57:34,315 INFO L226 Difference]: Without dead ends: 38511 [2024-11-22 01:57:34,372 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 01:57:34,373 INFO L432 NwaCegarLoop]: 568 mSDtfsCounter, 102 mSDsluCounter, 556 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 117 SdHoareTripleChecker+Valid, 1124 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 01:57:34,374 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [117 Valid, 1124 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 01:57:34,406 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38511 states. [2024-11-22 01:57:35,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38511 to 38501. [2024-11-22 01:57:35,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38501 states, 32227 states have (on average 1.6003040928414063) internal successors, (51573), 32236 states have internal predecessors, (51573), 6207 states have call successors, (6207), 60 states have call predecessors, (6207), 66 states have return successors, (8019), 6207 states have call predecessors, (8019), 6206 states have call successors, (8019) [2024-11-22 01:57:36,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38501 states to 38501 states and 65799 transitions. [2024-11-22 01:57:36,437 INFO L78 Accepts]: Start accepts. Automaton has 38501 states and 65799 transitions. Word has length 134 [2024-11-22 01:57:36,438 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:57:36,438 INFO L471 AbstractCegarLoop]: Abstraction has 38501 states and 65799 transitions. [2024-11-22 01:57:36,438 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-22 01:57:36,438 INFO L276 IsEmpty]: Start isEmpty. Operand 38501 states and 65799 transitions. [2024-11-22 01:57:36,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-11-22 01:57:36,534 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:57:36,534 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 01:57:36,535 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-22 01:57:36,535 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:57:36,535 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:57:36,535 INFO L85 PathProgramCache]: Analyzing trace with hash 529123624, now seen corresponding path program 1 times [2024-11-22 01:57:36,536 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:57:36,536 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [868964547] [2024-11-22 01:57:36,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:57:36,536 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:57:36,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:57:36,611 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2024-11-22 01:57:36,611 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:57:36,611 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [868964547] [2024-11-22 01:57:36,611 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [868964547] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:57:36,611 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 01:57:36,612 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 01:57:36,612 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [138072813] [2024-11-22 01:57:36,613 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:57:36,614 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 01:57:36,614 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:57:36,615 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 01:57:36,615 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 01:57:36,615 INFO L87 Difference]: Start difference. First operand 38501 states and 65799 transitions. Second operand has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 states have internal predecessors, (90), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-22 01:57:38,793 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:57:38,793 INFO L93 Difference]: Finished difference Result 99497 states and 170804 transitions. [2024-11-22 01:57:38,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 01:57:38,794 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 states have internal predecessors, (90), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 135 [2024-11-22 01:57:38,794 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:57:39,151 INFO L225 Difference]: With dead ends: 99497 [2024-11-22 01:57:39,151 INFO L226 Difference]: Without dead ends: 67763 [2024-11-22 01:57:39,556 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 01:57:39,558 INFO L432 NwaCegarLoop]: 581 mSDtfsCounter, 100 mSDsluCounter, 559 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 1140 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 01:57:39,558 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [115 Valid, 1140 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 01:57:39,612 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67763 states. [2024-11-22 01:57:41,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67763 to 67753. [2024-11-22 01:57:42,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67753 states, 56667 states have (on average 1.5909965235498615) internal successors, (90157), 56676 states have internal predecessors, (90157), 11019 states have call successors, (11019), 60 states have call predecessors, (11019), 66 states have return successors, (14243), 11019 states have call predecessors, (14243), 11018 states have call successors, (14243) [2024-11-22 01:57:42,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67753 states to 67753 states and 115419 transitions. [2024-11-22 01:57:42,350 INFO L78 Accepts]: Start accepts. Automaton has 67753 states and 115419 transitions. Word has length 135 [2024-11-22 01:57:42,351 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:57:42,351 INFO L471 AbstractCegarLoop]: Abstraction has 67753 states and 115419 transitions. [2024-11-22 01:57:42,352 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 states have internal predecessors, (90), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-22 01:57:42,352 INFO L276 IsEmpty]: Start isEmpty. Operand 67753 states and 115419 transitions. [2024-11-22 01:57:42,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2024-11-22 01:57:42,975 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:57:42,975 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 01:57:42,975 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-22 01:57:42,976 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:57:42,976 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:57:42,976 INFO L85 PathProgramCache]: Analyzing trace with hash 582215395, now seen corresponding path program 1 times [2024-11-22 01:57:42,976 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:57:42,976 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [577659742] [2024-11-22 01:57:42,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:57:42,977 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:57:42,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:57:43,088 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 3 proven. 5 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2024-11-22 01:57:43,088 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:57:43,088 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [577659742] [2024-11-22 01:57:43,088 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [577659742] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 01:57:43,089 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1185484952] [2024-11-22 01:57:43,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:57:43,089 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 01:57:43,090 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 01:57:43,092 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 01:57:43,094 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-22 01:57:43,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:57:43,395 INFO L255 TraceCheckSpWp]: Trace formula consists of 1089 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-22 01:57:43,399 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 01:57:43,427 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2024-11-22 01:57:43,428 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 01:57:43,428 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1185484952] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:57:43,428 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 01:57:43,428 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2024-11-22 01:57:43,428 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1439607552] [2024-11-22 01:57:43,428 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:57:43,429 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 01:57:43,429 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:57:43,430 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 01:57:43,430 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 01:57:43,430 INFO L87 Difference]: Start difference. First operand 67753 states and 115419 transitions. Second operand has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 states have internal predecessors, (90), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-22 01:57:46,382 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:57:46,382 INFO L93 Difference]: Finished difference Result 179401 states and 307116 transitions. [2024-11-22 01:57:46,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 01:57:46,383 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 states have internal predecessors, (90), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 137 [2024-11-22 01:57:46,383 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:57:46,965 INFO L225 Difference]: With dead ends: 179401 [2024-11-22 01:57:46,965 INFO L226 Difference]: Without dead ends: 121123 [2024-11-22 01:57:47,138 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 141 GetRequests, 137 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 01:57:47,139 INFO L432 NwaCegarLoop]: 561 mSDtfsCounter, 98 mSDsluCounter, 555 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 113 SdHoareTripleChecker+Valid, 1116 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 01:57:47,139 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [113 Valid, 1116 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 01:57:47,258 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121123 states. [2024-11-22 01:57:51,800 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121123 to 121113. [2024-11-22 01:57:51,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 121113 states, 101871 states have (on average 1.586408300694015) internal successors, (161609), 101880 states have internal predecessors, (161609), 19175 states have call successors, (19175), 60 states have call predecessors, (19175), 66 states have return successors, (25107), 19175 states have call predecessors, (25107), 19174 states have call successors, (25107) [2024-11-22 01:57:52,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121113 states to 121113 states and 205891 transitions. [2024-11-22 01:57:52,370 INFO L78 Accepts]: Start accepts. Automaton has 121113 states and 205891 transitions. Word has length 137 [2024-11-22 01:57:52,370 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:57:52,370 INFO L471 AbstractCegarLoop]: Abstraction has 121113 states and 205891 transitions. [2024-11-22 01:57:52,370 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 states have internal predecessors, (90), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-22 01:57:52,370 INFO L276 IsEmpty]: Start isEmpty. Operand 121113 states and 205891 transitions. [2024-11-22 01:57:52,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2024-11-22 01:57:52,498 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:57:52,498 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 01:57:52,507 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-11-22 01:57:52,698 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2024-11-22 01:57:52,699 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:57:52,699 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:57:52,699 INFO L85 PathProgramCache]: Analyzing trace with hash -859135675, now seen corresponding path program 1 times [2024-11-22 01:57:52,699 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:57:52,700 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [593233603] [2024-11-22 01:57:52,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:57:52,700 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:57:52,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:57:52,815 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 3 proven. 5 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2024-11-22 01:57:52,815 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:57:52,815 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [593233603] [2024-11-22 01:57:52,816 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [593233603] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 01:57:52,816 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1302000473] [2024-11-22 01:57:52,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:57:52,816 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 01:57:52,816 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 01:57:52,819 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 01:57:52,821 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-11-22 01:57:53,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:57:53,138 INFO L255 TraceCheckSpWp]: Trace formula consists of 1094 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-22 01:57:53,145 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 01:57:53,178 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2024-11-22 01:57:53,178 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 01:57:53,179 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1302000473] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:57:53,179 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 01:57:53,179 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2024-11-22 01:57:53,179 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [806889182] [2024-11-22 01:57:53,179 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:57:53,181 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 01:57:53,181 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:57:53,182 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 01:57:53,182 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 01:57:53,182 INFO L87 Difference]: Start difference. First operand 121113 states and 205891 transitions. Second operand has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-22 01:57:59,325 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:57:59,326 INFO L93 Difference]: Finished difference Result 330349 states and 561544 transitions. [2024-11-22 01:57:59,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 01:57:59,326 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 138 [2024-11-22 01:57:59,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:58:00,267 INFO L225 Difference]: With dead ends: 330349 [2024-11-22 01:58:00,267 INFO L226 Difference]: Without dead ends: 221959 [2024-11-22 01:58:00,505 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 138 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 01:58:00,507 INFO L432 NwaCegarLoop]: 563 mSDtfsCounter, 96 mSDsluCounter, 555 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 111 SdHoareTripleChecker+Valid, 1118 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 01:58:00,508 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [111 Valid, 1118 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 01:58:00,701 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 221959 states. [2024-11-22 01:58:08,611 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 221959 to 221949. [2024-11-22 01:58:08,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 221949 states, 187847 states have (on average 1.5807172858762717) internal successors, (296933), 187856 states have internal predecessors, (296933), 34035 states have call successors, (34035), 60 states have call predecessors, (34035), 66 states have return successors, (43159), 34035 states have call predecessors, (43159), 34034 states have call successors, (43159) [2024-11-22 01:58:09,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 221949 states to 221949 states and 374127 transitions. [2024-11-22 01:58:09,708 INFO L78 Accepts]: Start accepts. Automaton has 221949 states and 374127 transitions. Word has length 138 [2024-11-22 01:58:09,709 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:58:09,709 INFO L471 AbstractCegarLoop]: Abstraction has 221949 states and 374127 transitions. [2024-11-22 01:58:09,709 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-22 01:58:09,709 INFO L276 IsEmpty]: Start isEmpty. Operand 221949 states and 374127 transitions. [2024-11-22 01:58:09,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2024-11-22 01:58:09,886 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:58:09,887 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 01:58:09,894 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2024-11-22 01:58:10,087 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2024-11-22 01:58:10,087 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:58:10,088 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:58:10,088 INFO L85 PathProgramCache]: Analyzing trace with hash -2038939261, now seen corresponding path program 1 times [2024-11-22 01:58:10,088 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:58:10,088 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [755681537] [2024-11-22 01:58:10,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:58:10,088 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:58:10,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:58:10,952 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 3 proven. 5 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2024-11-22 01:58:10,953 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:58:10,953 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [755681537] [2024-11-22 01:58:10,953 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [755681537] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 01:58:10,953 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [549639489] [2024-11-22 01:58:10,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:58:10,954 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 01:58:10,954 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 01:58:10,961 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 01:58:10,971 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-11-22 01:58:11,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:58:11,341 INFO L255 TraceCheckSpWp]: Trace formula consists of 1099 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-22 01:58:11,346 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 01:58:11,384 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2024-11-22 01:58:11,387 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 01:58:11,387 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [549639489] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:58:11,387 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 01:58:11,387 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2024-11-22 01:58:11,388 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1396372020] [2024-11-22 01:58:11,388 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:58:11,388 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 01:58:11,388 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:58:11,389 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 01:58:11,389 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 01:58:11,389 INFO L87 Difference]: Start difference. First operand 221949 states and 374127 transitions. Second operand has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14)