./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/product-lines/email_spec8_product15.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3061b6dc Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/product-lines/email_spec8_product15.cil.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash b1bbd85396e3eb1de7562114efc1b104d28592355874c6166c296894ed6f999d --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-3061b6d-m [2024-11-18 14:14:45,465 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-18 14:14:45,565 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-18 14:14:45,571 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-18 14:14:45,573 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-18 14:14:45,607 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-18 14:14:45,609 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-18 14:14:45,609 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-18 14:14:45,610 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-18 14:14:45,612 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-18 14:14:45,612 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-18 14:14:45,613 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-18 14:14:45,613 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-18 14:14:45,615 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-18 14:14:45,615 INFO L153 SettingsManager]: * Use SBE=true [2024-11-18 14:14:45,616 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-18 14:14:45,616 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-18 14:14:45,616 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-18 14:14:45,617 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-18 14:14:45,617 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-18 14:14:45,617 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-18 14:14:45,620 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-18 14:14:45,621 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-18 14:14:45,621 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-18 14:14:45,621 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-18 14:14:45,622 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-18 14:14:45,622 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-18 14:14:45,622 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-18 14:14:45,623 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-18 14:14:45,623 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-18 14:14:45,624 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-18 14:14:45,624 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-18 14:14:45,624 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-18 14:14:45,625 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-18 14:14:45,625 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-18 14:14:45,626 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-18 14:14:45,626 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-18 14:14:45,626 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-18 14:14:45,626 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-18 14:14:45,627 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-18 14:14:45,627 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-18 14:14:45,627 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-18 14:14:45,628 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b1bbd85396e3eb1de7562114efc1b104d28592355874c6166c296894ed6f999d [2024-11-18 14:14:45,887 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-18 14:14:45,915 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-18 14:14:45,918 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-18 14:14:45,919 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-18 14:14:45,920 INFO L274 PluginConnector]: CDTParser initialized [2024-11-18 14:14:45,921 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/email_spec8_product15.cil.c [2024-11-18 14:14:47,501 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-18 14:14:47,813 INFO L384 CDTParser]: Found 1 translation units. [2024-11-18 14:14:47,814 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/email_spec8_product15.cil.c [2024-11-18 14:14:47,836 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ebbea949b/a123fa0db87c49879b2b6fda55eaa03e/FLAGb182bf9e2 [2024-11-18 14:14:48,072 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ebbea949b/a123fa0db87c49879b2b6fda55eaa03e [2024-11-18 14:14:48,074 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-18 14:14:48,075 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-18 14:14:48,077 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-18 14:14:48,077 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-18 14:14:48,082 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-18 14:14:48,082 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 02:14:48" (1/1) ... [2024-11-18 14:14:48,083 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@18beb6db and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:14:48, skipping insertion in model container [2024-11-18 14:14:48,083 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 02:14:48" (1/1) ... [2024-11-18 14:14:48,160 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-18 14:14:48,670 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_spec8_product15.cil.c[44955,44968] [2024-11-18 14:14:48,792 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-18 14:14:48,811 INFO L200 MainTranslator]: Completed pre-run [2024-11-18 14:14:48,821 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"EmailLib.i","") [48] [2024-11-18 14:14:48,823 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Client.i","") [460] [2024-11-18 14:14:48,823 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"ClientLib.i","") [750] [2024-11-18 14:14:48,824 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [1824] [2024-11-18 14:14:48,824 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"EncryptAutoResponder_spec.i","") [2112] [2024-11-18 14:14:48,824 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [2155] [2024-11-18 14:14:48,824 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Email.i","") [2164] [2024-11-18 14:14:48,825 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [2268] [2024-11-18 14:14:48,825 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Util.i","") [2484] [2024-11-18 14:14:48,826 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [2501] [2024-11-18 14:14:48,826 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [2867] [2024-11-18 14:14:48,980 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_spec8_product15.cil.c[44955,44968] [2024-11-18 14:14:49,010 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-18 14:14:49,048 INFO L204 MainTranslator]: Completed translation [2024-11-18 14:14:49,049 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:14:49 WrapperNode [2024-11-18 14:14:49,049 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-18 14:14:49,050 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-18 14:14:49,050 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-18 14:14:49,050 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-18 14:14:49,058 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:14:49" (1/1) ... [2024-11-18 14:14:49,096 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:14:49" (1/1) ... [2024-11-18 14:14:49,159 INFO L138 Inliner]: procedures = 126, calls = 185, calls flagged for inlining = 55, calls inlined = 46, statements flattened = 892 [2024-11-18 14:14:49,163 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-18 14:14:49,164 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-18 14:14:49,164 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-18 14:14:49,165 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-18 14:14:49,182 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:14:49" (1/1) ... [2024-11-18 14:14:49,183 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:14:49" (1/1) ... [2024-11-18 14:14:49,191 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:14:49" (1/1) ... [2024-11-18 14:14:49,231 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]. [2024-11-18 14:14:49,232 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:14:49" (1/1) ... [2024-11-18 14:14:49,232 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:14:49" (1/1) ... [2024-11-18 14:14:49,254 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:14:49" (1/1) ... [2024-11-18 14:14:49,268 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:14:49" (1/1) ... [2024-11-18 14:14:49,280 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:14:49" (1/1) ... [2024-11-18 14:14:49,288 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:14:49" (1/1) ... [2024-11-18 14:14:49,298 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-18 14:14:49,299 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-18 14:14:49,299 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-18 14:14:49,299 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-18 14:14:49,300 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:14:49" (1/1) ... [2024-11-18 14:14:49,309 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-18 14:14:49,320 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 14:14:49,339 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) [2024-11-18 14:14:49,342 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 [2024-11-18 14:14:49,390 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2024-11-18 14:14:49,391 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2024-11-18 14:14:49,391 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2024-11-18 14:14:49,391 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2024-11-18 14:14:49,391 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2024-11-18 14:14:49,392 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2024-11-18 14:14:49,392 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2024-11-18 14:14:49,392 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2024-11-18 14:14:49,392 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2024-11-18 14:14:49,393 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2024-11-18 14:14:49,393 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2024-11-18 14:14:49,393 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2024-11-18 14:14:49,394 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2024-11-18 14:14:49,394 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2024-11-18 14:14:49,394 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2024-11-18 14:14:49,395 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2024-11-18 14:14:49,395 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2024-11-18 14:14:49,395 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2024-11-18 14:14:49,396 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-18 14:14:49,397 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2024-11-18 14:14:49,397 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2024-11-18 14:14:49,397 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2024-11-18 14:14:49,397 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2024-11-18 14:14:49,397 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2024-11-18 14:14:49,398 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2024-11-18 14:14:49,398 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2024-11-18 14:14:49,398 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2024-11-18 14:14:49,399 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2024-11-18 14:14:49,399 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2024-11-18 14:14:49,399 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2024-11-18 14:14:49,399 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2024-11-18 14:14:49,399 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2024-11-18 14:14:49,399 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2024-11-18 14:14:49,399 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-18 14:14:49,400 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-18 14:14:49,400 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-18 14:14:49,400 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-18 14:14:49,400 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2024-11-18 14:14:49,400 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2024-11-18 14:14:49,400 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-18 14:14:49,401 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-18 14:14:49,600 INFO L238 CfgBuilder]: Building ICFG [2024-11-18 14:14:49,603 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-18 14:14:50,406 INFO L? ?]: Removed 376 outVars from TransFormulas that were not future-live. [2024-11-18 14:14:50,406 INFO L287 CfgBuilder]: Performing block encoding [2024-11-18 14:14:50,436 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-18 14:14:50,437 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-18 14:14:50,438 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 02:14:50 BoogieIcfgContainer [2024-11-18 14:14:50,438 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-18 14:14:50,440 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-18 14:14:50,441 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-18 14:14:50,444 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-18 14:14:50,445 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 02:14:48" (1/3) ... [2024-11-18 14:14:50,446 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7385f93d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 02:14:50, skipping insertion in model container [2024-11-18 14:14:50,446 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:14:49" (2/3) ... [2024-11-18 14:14:50,446 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7385f93d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 02:14:50, skipping insertion in model container [2024-11-18 14:14:50,447 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 02:14:50" (3/3) ... [2024-11-18 14:14:50,448 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec8_product15.cil.c [2024-11-18 14:14:50,464 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-18 14:14:50,464 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-18 14:14:50,558 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-18 14:14:50,566 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;@4e1d7033, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-18 14:14:50,567 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-18 14:14:50,574 INFO L276 IsEmpty]: Start isEmpty. Operand has 287 states, 226 states have (on average 1.5442477876106195) internal successors, (349), 230 states have internal predecessors, (349), 42 states have call successors, (42), 17 states have call predecessors, (42), 17 states have return successors, (42), 42 states have call predecessors, (42), 42 states have call successors, (42) [2024-11-18 14:14:50,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2024-11-18 14:14:50,598 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:14:50,599 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:14:50,600 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:14:50,605 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:14:50,607 INFO L85 PathProgramCache]: Analyzing trace with hash -424898417, now seen corresponding path program 1 times [2024-11-18 14:14:50,616 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:14:50,616 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1397983196] [2024-11-18 14:14:50,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:14:50,617 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:14:50,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:14:51,358 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-11-18 14:14:51,358 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:14:51,359 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1397983196] [2024-11-18 14:14:51,360 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1397983196] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-18 14:14:51,360 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1029260316] [2024-11-18 14:14:51,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:14:51,361 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 14:14:51,361 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 14:14:51,363 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) [2024-11-18 14:14:51,365 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-18 14:14:51,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:14:51,685 INFO L255 TraceCheckSpWp]: Trace formula consists of 919 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-18 14:14:51,693 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-18 14:14:51,717 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-18 14:14:51,719 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-18 14:14:51,719 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1029260316] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:14:51,719 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-18 14:14:51,719 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 5 [2024-11-18 14:14:51,721 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1818483714] [2024-11-18 14:14:51,722 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:14:51,727 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-18 14:14:51,728 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:14:51,754 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-18 14:14:51,755 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-18 14:14:51,759 INFO L87 Difference]: Start difference. First operand has 287 states, 226 states have (on average 1.5442477876106195) internal successors, (349), 230 states have internal predecessors, (349), 42 states have call successors, (42), 17 states have call predecessors, (42), 17 states have return successors, (42), 42 states have call predecessors, (42), 42 states have call successors, (42) Second operand has 2 states, 2 states have (on average 25.0) internal successors, (50), 2 states have internal predecessors, (50), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-18 14:14:51,830 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:14:51,831 INFO L93 Difference]: Finished difference Result 420 states and 620 transitions. [2024-11-18 14:14:51,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-18 14:14:51,835 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 25.0) internal successors, (50), 2 states have internal predecessors, (50), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 89 [2024-11-18 14:14:51,836 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:14:51,853 INFO L225 Difference]: With dead ends: 420 [2024-11-18 14:14:51,854 INFO L226 Difference]: Without dead ends: 280 [2024-11-18 14:14:51,862 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 90 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-18 14:14:51,867 INFO L432 NwaCegarLoop]: 429 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 429 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 14:14:51,868 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 429 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 14:14:51,890 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 280 states. [2024-11-18 14:14:51,938 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 280 to 280. [2024-11-18 14:14:51,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 280 states, 220 states have (on average 1.5363636363636364) internal successors, (338), 223 states have internal predecessors, (338), 42 states have call successors, (42), 17 states have call predecessors, (42), 17 states have return successors, (41), 41 states have call predecessors, (41), 41 states have call successors, (41) [2024-11-18 14:14:51,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 280 states to 280 states and 421 transitions. [2024-11-18 14:14:51,949 INFO L78 Accepts]: Start accepts. Automaton has 280 states and 421 transitions. Word has length 89 [2024-11-18 14:14:51,952 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:14:51,952 INFO L471 AbstractCegarLoop]: Abstraction has 280 states and 421 transitions. [2024-11-18 14:14:51,952 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 25.0) internal successors, (50), 2 states have internal predecessors, (50), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-18 14:14:51,953 INFO L276 IsEmpty]: Start isEmpty. Operand 280 states and 421 transitions. [2024-11-18 14:14:51,960 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-11-18 14:14:51,960 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:14:51,961 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:14:51,975 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-18 14:14:52,161 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 [2024-11-18 14:14:52,162 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:14:52,163 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:14:52,163 INFO L85 PathProgramCache]: Analyzing trace with hash 1235825051, now seen corresponding path program 1 times [2024-11-18 14:14:52,163 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:14:52,163 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1319639554] [2024-11-18 14:14:52,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:14:52,164 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:14:52,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:14:52,458 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-11-18 14:14:52,458 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:14:52,458 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1319639554] [2024-11-18 14:14:52,459 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1319639554] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-18 14:14:52,459 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1112086908] [2024-11-18 14:14:52,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:14:52,459 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 14:14:52,459 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 14:14:52,463 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) [2024-11-18 14:14:52,465 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-18 14:14:52,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:14:52,819 INFO L255 TraceCheckSpWp]: Trace formula consists of 920 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-18 14:14:52,824 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-18 14:14:52,864 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-18 14:14:52,864 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-18 14:14:52,865 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1112086908] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:14:52,865 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-18 14:14:52,865 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2024-11-18 14:14:52,865 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1529258563] [2024-11-18 14:14:52,869 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:14:52,870 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 14:14:52,870 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:14:52,871 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 14:14:52,871 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-18 14:14:52,871 INFO L87 Difference]: Start difference. First operand 280 states and 421 transitions. Second operand has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-18 14:14:52,913 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:14:52,913 INFO L93 Difference]: Finished difference Result 410 states and 601 transitions. [2024-11-18 14:14:52,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 14:14:52,914 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 90 [2024-11-18 14:14:52,915 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:14:52,917 INFO L225 Difference]: With dead ends: 410 [2024-11-18 14:14:52,918 INFO L226 Difference]: Without dead ends: 283 [2024-11-18 14:14:52,919 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 90 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-18 14:14:52,920 INFO L432 NwaCegarLoop]: 419 mSDtfsCounter, 1 mSDsluCounter, 417 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 836 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 14:14:52,920 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 836 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 14:14:52,921 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 283 states. [2024-11-18 14:14:52,935 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 283 to 282. [2024-11-18 14:14:52,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 282 states, 222 states have (on average 1.5315315315315314) internal successors, (340), 225 states have internal predecessors, (340), 42 states have call successors, (42), 17 states have call predecessors, (42), 17 states have return successors, (41), 41 states have call predecessors, (41), 41 states have call successors, (41) [2024-11-18 14:14:52,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 282 states to 282 states and 423 transitions. [2024-11-18 14:14:52,938 INFO L78 Accepts]: Start accepts. Automaton has 282 states and 423 transitions. Word has length 90 [2024-11-18 14:14:52,938 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:14:52,938 INFO L471 AbstractCegarLoop]: Abstraction has 282 states and 423 transitions. [2024-11-18 14:14:52,938 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-18 14:14:52,939 INFO L276 IsEmpty]: Start isEmpty. Operand 282 states and 423 transitions. [2024-11-18 14:14:52,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2024-11-18 14:14:52,941 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:14:52,941 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:14:52,962 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-18 14:14:53,142 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 [2024-11-18 14:14:53,143 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:14:53,143 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:14:53,143 INFO L85 PathProgramCache]: Analyzing trace with hash 1363663514, now seen corresponding path program 1 times [2024-11-18 14:14:53,143 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:14:53,144 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [422155497] [2024-11-18 14:14:53,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:14:53,144 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:14:53,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:14:53,352 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-18 14:14:53,354 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:14:53,355 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [422155497] [2024-11-18 14:14:53,355 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [422155497] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-18 14:14:53,355 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [115572448] [2024-11-18 14:14:53,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:14:53,356 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 14:14:53,356 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 14:14:53,358 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) [2024-11-18 14:14:53,360 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-18 14:14:53,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:14:53,629 INFO L255 TraceCheckSpWp]: Trace formula consists of 945 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-18 14:14:53,639 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-18 14:14:53,664 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-18 14:14:53,667 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-18 14:14:53,667 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [115572448] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:14:53,667 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-18 14:14:53,668 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2024-11-18 14:14:53,668 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1508756631] [2024-11-18 14:14:53,668 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:14:53,669 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 14:14:53,669 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:14:53,669 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 14:14:53,669 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-18 14:14:53,670 INFO L87 Difference]: Start difference. First operand 282 states and 423 transitions. Second operand has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-18 14:14:53,701 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:14:53,702 INFO L93 Difference]: Finished difference Result 594 states and 905 transitions. [2024-11-18 14:14:53,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 14:14:53,702 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 99 [2024-11-18 14:14:53,703 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:14:53,708 INFO L225 Difference]: With dead ends: 594 [2024-11-18 14:14:53,708 INFO L226 Difference]: Without dead ends: 339 [2024-11-18 14:14:53,710 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 99 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-18 14:14:53,711 INFO L432 NwaCegarLoop]: 439 mSDtfsCounter, 107 mSDsluCounter, 375 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 122 SdHoareTripleChecker+Valid, 814 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 14:14:53,712 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [122 Valid, 814 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 14:14:53,715 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 339 states. [2024-11-18 14:14:53,744 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 339 to 331. [2024-11-18 14:14:53,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 331 states, 260 states have (on average 1.5461538461538462) internal successors, (402), 263 states have internal predecessors, (402), 53 states have call successors, (53), 17 states have call predecessors, (53), 17 states have return successors, (52), 52 states have call predecessors, (52), 52 states have call successors, (52) [2024-11-18 14:14:53,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 331 states to 331 states and 507 transitions. [2024-11-18 14:14:53,751 INFO L78 Accepts]: Start accepts. Automaton has 331 states and 507 transitions. Word has length 99 [2024-11-18 14:14:53,752 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:14:53,754 INFO L471 AbstractCegarLoop]: Abstraction has 331 states and 507 transitions. [2024-11-18 14:14:53,754 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-18 14:14:53,755 INFO L276 IsEmpty]: Start isEmpty. Operand 331 states and 507 transitions. [2024-11-18 14:14:53,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2024-11-18 14:14:53,757 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:14:53,757 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:14:53,776 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-18 14:14:53,958 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 [2024-11-18 14:14:53,959 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:14:53,959 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:14:53,959 INFO L85 PathProgramCache]: Analyzing trace with hash 1065487752, now seen corresponding path program 1 times [2024-11-18 14:14:53,959 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:14:53,960 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2135278647] [2024-11-18 14:14:53,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:14:53,960 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:14:53,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:14:54,153 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-18 14:14:54,153 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:14:54,154 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2135278647] [2024-11-18 14:14:54,154 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2135278647] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-18 14:14:54,154 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1457924948] [2024-11-18 14:14:54,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:14:54,154 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 14:14:54,155 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 14:14:54,156 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) [2024-11-18 14:14:54,157 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-18 14:14:54,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:14:54,425 INFO L255 TraceCheckSpWp]: Trace formula consists of 950 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-18 14:14:54,430 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-18 14:14:54,491 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-18 14:14:54,491 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-18 14:14:54,492 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1457924948] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:14:54,492 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-18 14:14:54,492 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 8 [2024-11-18 14:14:54,493 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [634130753] [2024-11-18 14:14:54,493 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:14:54,494 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 14:14:54,496 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:14:54,497 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 14:14:54,497 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-11-18 14:14:54,497 INFO L87 Difference]: Start difference. First operand 331 states and 507 transitions. Second operand has 5 states, 4 states have (on average 17.25) internal successors, (69), 5 states have internal predecessors, (69), 3 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (11), 2 states have call predecessors, (11), 3 states have call successors, (11) [2024-11-18 14:14:54,562 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:14:54,565 INFO L93 Difference]: Finished difference Result 653 states and 1004 transitions. [2024-11-18 14:14:54,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-18 14:14:54,566 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 17.25) internal successors, (69), 5 states have internal predecessors, (69), 3 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (11), 2 states have call predecessors, (11), 3 states have call successors, (11) Word has length 100 [2024-11-18 14:14:54,567 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:14:54,569 INFO L225 Difference]: With dead ends: 653 [2024-11-18 14:14:54,569 INFO L226 Difference]: Without dead ends: 333 [2024-11-18 14:14:54,572 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 98 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-11-18 14:14:54,574 INFO L432 NwaCegarLoop]: 413 mSDtfsCounter, 2 mSDsluCounter, 1228 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 1641 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 14:14:54,574 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 1641 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 14:14:54,577 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 333 states. [2024-11-18 14:14:54,594 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 333 to 333. [2024-11-18 14:14:54,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 333 states, 261 states have (on average 1.5440613026819923) internal successors, (403), 265 states have internal predecessors, (403), 53 states have call successors, (53), 17 states have call predecessors, (53), 18 states have return successors, (54), 52 states have call predecessors, (54), 52 states have call successors, (54) [2024-11-18 14:14:54,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 333 states to 333 states and 510 transitions. [2024-11-18 14:14:54,599 INFO L78 Accepts]: Start accepts. Automaton has 333 states and 510 transitions. Word has length 100 [2024-11-18 14:14:54,599 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:14:54,600 INFO L471 AbstractCegarLoop]: Abstraction has 333 states and 510 transitions. [2024-11-18 14:14:54,601 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 17.25) internal successors, (69), 5 states have internal predecessors, (69), 3 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (11), 2 states have call predecessors, (11), 3 states have call successors, (11) [2024-11-18 14:14:54,601 INFO L276 IsEmpty]: Start isEmpty. Operand 333 states and 510 transitions. [2024-11-18 14:14:54,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-11-18 14:14:54,604 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:14:54,604 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:14:54,625 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-18 14:14:54,808 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 [2024-11-18 14:14:54,809 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:14:54,809 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:14:54,809 INFO L85 PathProgramCache]: Analyzing trace with hash -1218296481, now seen corresponding path program 1 times [2024-11-18 14:14:54,810 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:14:54,810 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [188393919] [2024-11-18 14:14:54,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:14:54,810 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:14:54,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:14:54,987 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-18 14:14:54,987 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:14:54,987 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [188393919] [2024-11-18 14:14:54,987 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [188393919] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-18 14:14:54,987 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1756118985] [2024-11-18 14:14:54,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:14:54,987 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 14:14:54,988 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 14:14:54,989 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) [2024-11-18 14:14:54,990 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-18 14:14:55,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:14:55,297 INFO L255 TraceCheckSpWp]: Trace formula consists of 951 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-18 14:14:55,302 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-18 14:14:55,364 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-18 14:14:55,364 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-18 14:14:55,365 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1756118985] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:14:55,365 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-18 14:14:55,365 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8] total 11 [2024-11-18 14:14:55,365 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [116407556] [2024-11-18 14:14:55,365 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:14:55,366 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 14:14:55,366 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:14:55,367 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 14:14:55,367 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2024-11-18 14:14:55,367 INFO L87 Difference]: Start difference. First operand 333 states and 510 transitions. Second operand has 5 states, 5 states have (on average 14.2) internal successors, (71), 5 states have internal predecessors, (71), 3 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2024-11-18 14:14:55,444 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:14:55,445 INFO L93 Difference]: Finished difference Result 655 states and 1009 transitions. [2024-11-18 14:14:55,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-18 14:14:55,447 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.2) internal successors, (71), 5 states have internal predecessors, (71), 3 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 101 [2024-11-18 14:14:55,447 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:14:55,450 INFO L225 Difference]: With dead ends: 655 [2024-11-18 14:14:55,451 INFO L226 Difference]: Without dead ends: 335 [2024-11-18 14:14:55,453 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 99 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2024-11-18 14:14:55,454 INFO L432 NwaCegarLoop]: 411 mSDtfsCounter, 2 mSDsluCounter, 1216 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 1627 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 14:14:55,454 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 1627 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 14:14:55,455 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 335 states. [2024-11-18 14:14:55,472 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 335 to 335. [2024-11-18 14:14:55,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 335 states, 262 states have (on average 1.5419847328244274) internal successors, (404), 267 states have internal predecessors, (404), 53 states have call successors, (53), 17 states have call predecessors, (53), 19 states have return successors, (59), 52 states have call predecessors, (59), 52 states have call successors, (59) [2024-11-18 14:14:55,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 335 states to 335 states and 516 transitions. [2024-11-18 14:14:55,479 INFO L78 Accepts]: Start accepts. Automaton has 335 states and 516 transitions. Word has length 101 [2024-11-18 14:14:55,479 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:14:55,479 INFO L471 AbstractCegarLoop]: Abstraction has 335 states and 516 transitions. [2024-11-18 14:14:55,480 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.2) internal successors, (71), 5 states have internal predecessors, (71), 3 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2024-11-18 14:14:55,480 INFO L276 IsEmpty]: Start isEmpty. Operand 335 states and 516 transitions. [2024-11-18 14:14:55,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2024-11-18 14:14:55,482 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:14:55,482 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:14:55,503 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-18 14:14:55,683 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 [2024-11-18 14:14:55,683 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:14:55,684 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:14:55,684 INFO L85 PathProgramCache]: Analyzing trace with hash 911760390, now seen corresponding path program 1 times [2024-11-18 14:14:55,684 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:14:55,684 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [573023871] [2024-11-18 14:14:55,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:14:55,685 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:14:55,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:14:55,862 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-18 14:14:55,862 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:14:55,862 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [573023871] [2024-11-18 14:14:55,862 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [573023871] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:14:55,862 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:14:55,862 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 14:14:55,862 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [480076958] [2024-11-18 14:14:55,863 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:14:55,863 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 14:14:55,863 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:14:55,864 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 14:14:55,864 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-18 14:14:55,864 INFO L87 Difference]: Start difference. First operand 335 states and 516 transitions. Second operand has 5 states, 4 states have (on average 16.75) internal successors, (67), 5 states have internal predecessors, (67), 3 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 3 states have call successors, (11) [2024-11-18 14:14:55,912 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:14:55,913 INFO L93 Difference]: Finished difference Result 647 states and 1000 transitions. [2024-11-18 14:14:55,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-18 14:14:55,913 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 16.75) internal successors, (67), 5 states have internal predecessors, (67), 3 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 3 states have call successors, (11) Word has length 102 [2024-11-18 14:14:55,914 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:14:55,916 INFO L225 Difference]: With dead ends: 647 [2024-11-18 14:14:55,916 INFO L226 Difference]: Without dead ends: 335 [2024-11-18 14:14:55,919 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 [2024-11-18 14:14:55,921 INFO L432 NwaCegarLoop]: 414 mSDtfsCounter, 2 mSDsluCounter, 1231 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 1645 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 [2024-11-18 14:14:55,921 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 1645 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 14:14:55,922 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 335 states. [2024-11-18 14:14:55,937 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 335 to 335. [2024-11-18 14:14:55,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 335 states, 262 states have (on average 1.5419847328244274) internal successors, (404), 267 states have internal predecessors, (404), 53 states have call successors, (53), 17 states have call predecessors, (53), 19 states have return successors, (58), 52 states have call predecessors, (58), 52 states have call successors, (58) [2024-11-18 14:14:55,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 335 states to 335 states and 515 transitions. [2024-11-18 14:14:55,940 INFO L78 Accepts]: Start accepts. Automaton has 335 states and 515 transitions. Word has length 102 [2024-11-18 14:14:55,940 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:14:55,940 INFO L471 AbstractCegarLoop]: Abstraction has 335 states and 515 transitions. [2024-11-18 14:14:55,941 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 16.75) internal successors, (67), 5 states have internal predecessors, (67), 3 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 3 states have call successors, (11) [2024-11-18 14:14:55,941 INFO L276 IsEmpty]: Start isEmpty. Operand 335 states and 515 transitions. [2024-11-18 14:14:55,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2024-11-18 14:14:55,943 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:14:55,943 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:14:55,943 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-18 14:14:55,943 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:14:55,944 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:14:55,944 INFO L85 PathProgramCache]: Analyzing trace with hash -257413121, now seen corresponding path program 2 times [2024-11-18 14:14:55,944 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:14:55,944 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1944929525] [2024-11-18 14:14:55,944 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-18 14:14:55,945 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:14:55,975 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-18 14:14:55,976 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-18 14:14:56,085 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2024-11-18 14:14:56,086 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:14:56,086 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1944929525] [2024-11-18 14:14:56,086 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1944929525] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:14:56,086 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:14:56,086 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 14:14:56,086 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1999248305] [2024-11-18 14:14:56,087 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:14:56,087 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 14:14:56,087 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:14:56,088 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 14:14:56,088 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-18 14:14:56,088 INFO L87 Difference]: Start difference. First operand 335 states and 515 transitions. Second operand has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 3 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2024-11-18 14:14:56,141 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:14:56,141 INFO L93 Difference]: Finished difference Result 645 states and 995 transitions. [2024-11-18 14:14:56,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-18 14:14:56,142 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 3 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 103 [2024-11-18 14:14:56,142 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:14:56,145 INFO L225 Difference]: With dead ends: 645 [2024-11-18 14:14:56,145 INFO L226 Difference]: Without dead ends: 335 [2024-11-18 14:14:56,149 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 [2024-11-18 14:14:56,150 INFO L432 NwaCegarLoop]: 412 mSDtfsCounter, 2 mSDsluCounter, 1219 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 1631 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 14:14:56,150 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 1631 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 14:14:56,151 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 335 states. [2024-11-18 14:14:56,163 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 335 to 335. [2024-11-18 14:14:56,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 335 states, 262 states have (on average 1.5419847328244274) internal successors, (404), 267 states have internal predecessors, (404), 53 states have call successors, (53), 17 states have call predecessors, (53), 19 states have return successors, (57), 52 states have call predecessors, (57), 52 states have call successors, (57) [2024-11-18 14:14:56,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 335 states to 335 states and 514 transitions. [2024-11-18 14:14:56,166 INFO L78 Accepts]: Start accepts. Automaton has 335 states and 514 transitions. Word has length 103 [2024-11-18 14:14:56,167 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:14:56,167 INFO L471 AbstractCegarLoop]: Abstraction has 335 states and 514 transitions. [2024-11-18 14:14:56,167 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 3 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2024-11-18 14:14:56,167 INFO L276 IsEmpty]: Start isEmpty. Operand 335 states and 514 transitions. [2024-11-18 14:14:56,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2024-11-18 14:14:56,171 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:14:56,171 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] [2024-11-18 14:14:56,171 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-18 14:14:56,171 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:14:56,172 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:14:56,172 INFO L85 PathProgramCache]: Analyzing trace with hash -669111416, now seen corresponding path program 3 times [2024-11-18 14:14:56,172 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:14:56,172 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [591808690] [2024-11-18 14:14:56,172 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-18 14:14:56,173 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:14:56,202 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-11-18 14:14:56,202 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-18 14:14:56,315 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2024-11-18 14:14:56,316 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:14:56,316 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [591808690] [2024-11-18 14:14:56,316 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [591808690] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:14:56,316 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:14:56,316 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 14:14:56,316 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [410937440] [2024-11-18 14:14:56,316 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:14:56,317 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 14:14:56,317 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:14:56,317 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 14:14:56,318 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-18 14:14:56,318 INFO L87 Difference]: Start difference. First operand 335 states and 514 transitions. Second operand has 5 states, 5 states have (on average 13.6) internal successors, (68), 5 states have internal predecessors, (68), 3 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2024-11-18 14:14:56,369 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:14:56,370 INFO L93 Difference]: Finished difference Result 647 states and 1001 transitions. [2024-11-18 14:14:56,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-18 14:14:56,371 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 5 states have internal predecessors, (68), 3 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 104 [2024-11-18 14:14:56,371 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:14:56,373 INFO L225 Difference]: With dead ends: 647 [2024-11-18 14:14:56,373 INFO L226 Difference]: Without dead ends: 337 [2024-11-18 14:14:56,375 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 [2024-11-18 14:14:56,375 INFO L432 NwaCegarLoop]: 415 mSDtfsCounter, 1 mSDsluCounter, 1227 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 1642 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 [2024-11-18 14:14:56,376 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 1642 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 14:14:56,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 337 states. [2024-11-18 14:14:56,386 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 337 to 337. [2024-11-18 14:14:56,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 337 states, 263 states have (on average 1.5399239543726235) internal successors, (405), 269 states have internal predecessors, (405), 53 states have call successors, (53), 17 states have call predecessors, (53), 20 states have return successors, (62), 52 states have call predecessors, (62), 52 states have call successors, (62) [2024-11-18 14:14:56,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 337 states to 337 states and 520 transitions. [2024-11-18 14:14:56,389 INFO L78 Accepts]: Start accepts. Automaton has 337 states and 520 transitions. Word has length 104 [2024-11-18 14:14:56,389 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:14:56,389 INFO L471 AbstractCegarLoop]: Abstraction has 337 states and 520 transitions. [2024-11-18 14:14:56,390 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 5 states have internal predecessors, (68), 3 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2024-11-18 14:14:56,390 INFO L276 IsEmpty]: Start isEmpty. Operand 337 states and 520 transitions. [2024-11-18 14:14:56,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2024-11-18 14:14:56,391 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:14:56,392 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:14:56,392 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-18 14:14:56,392 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:14:56,392 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:14:56,393 INFO L85 PathProgramCache]: Analyzing trace with hash -996159686, now seen corresponding path program 1 times [2024-11-18 14:14:56,393 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:14:56,393 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [313206029] [2024-11-18 14:14:56,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:14:56,393 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:14:56,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:14:56,528 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2024-11-18 14:14:56,528 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:14:56,528 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [313206029] [2024-11-18 14:14:56,528 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [313206029] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:14:56,529 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:14:56,529 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 14:14:56,529 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [649532656] [2024-11-18 14:14:56,529 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:14:56,529 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 14:14:56,529 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:14:56,530 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 14:14:56,530 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-18 14:14:56,530 INFO L87 Difference]: Start difference. First operand 337 states and 520 transitions. Second operand has 5 states, 4 states have (on average 17.5) internal successors, (70), 5 states have internal predecessors, (70), 3 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 3 states have call successors, (11) [2024-11-18 14:14:56,573 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:14:56,573 INFO L93 Difference]: Finished difference Result 653 states and 1011 transitions. [2024-11-18 14:14:56,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-18 14:14:56,574 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 17.5) internal successors, (70), 5 states have internal predecessors, (70), 3 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 3 states have call successors, (11) Word has length 105 [2024-11-18 14:14:56,574 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:14:56,577 INFO L225 Difference]: With dead ends: 653 [2024-11-18 14:14:56,577 INFO L226 Difference]: Without dead ends: 339 [2024-11-18 14:14:56,578 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 [2024-11-18 14:14:56,580 INFO L432 NwaCegarLoop]: 415 mSDtfsCounter, 1 mSDsluCounter, 1233 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 1648 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 [2024-11-18 14:14:56,581 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 1648 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 14:14:56,582 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 339 states. [2024-11-18 14:14:56,592 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 339 to 339. [2024-11-18 14:14:56,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 339 states, 264 states have (on average 1.5378787878787878) internal successors, (406), 271 states have internal predecessors, (406), 53 states have call successors, (53), 17 states have call predecessors, (53), 21 states have return successors, (64), 52 states have call predecessors, (64), 52 states have call successors, (64) [2024-11-18 14:14:56,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 339 states to 339 states and 523 transitions. [2024-11-18 14:14:56,595 INFO L78 Accepts]: Start accepts. Automaton has 339 states and 523 transitions. Word has length 105 [2024-11-18 14:14:56,595 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:14:56,595 INFO L471 AbstractCegarLoop]: Abstraction has 339 states and 523 transitions. [2024-11-18 14:14:56,595 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 17.5) internal successors, (70), 5 states have internal predecessors, (70), 3 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 3 states have call successors, (11) [2024-11-18 14:14:56,595 INFO L276 IsEmpty]: Start isEmpty. Operand 339 states and 523 transitions. [2024-11-18 14:14:56,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2024-11-18 14:14:56,598 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:14:56,598 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:14:56,598 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-18 14:14:56,599 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:14:56,600 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:14:56,600 INFO L85 PathProgramCache]: Analyzing trace with hash 816721852, now seen corresponding path program 1 times [2024-11-18 14:14:56,600 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:14:56,600 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1423236537] [2024-11-18 14:14:56,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:14:56,600 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:14:56,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:14:56,766 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2024-11-18 14:14:56,766 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:14:56,767 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1423236537] [2024-11-18 14:14:56,767 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1423236537] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-18 14:14:56,767 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [142204490] [2024-11-18 14:14:56,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:14:56,767 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 14:14:56,767 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 14:14:56,769 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) [2024-11-18 14:14:56,770 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-18 14:14:57,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:14:57,052 INFO L255 TraceCheckSpWp]: Trace formula consists of 956 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-18 14:14:57,056 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-18 14:14:57,099 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-18 14:14:57,100 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-18 14:14:57,192 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-18 14:14:57,193 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [142204490] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-18 14:14:57,193 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-18 14:14:57,193 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 4, 4] total 11 [2024-11-18 14:14:57,194 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [86191289] [2024-11-18 14:14:57,194 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-18 14:14:57,194 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-18 14:14:57,197 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:14:57,198 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-18 14:14:57,198 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2024-11-18 14:14:57,198 INFO L87 Difference]: Start difference. First operand 339 states and 523 transitions. Second operand has 11 states, 10 states have (on average 11.6) internal successors, (116), 11 states have internal predecessors, (116), 4 states have call successors, (22), 2 states have call predecessors, (22), 3 states have return successors, (20), 3 states have call predecessors, (20), 4 states have call successors, (20) [2024-11-18 14:14:57,807 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:14:57,807 INFO L93 Difference]: Finished difference Result 1003 states and 1616 transitions. [2024-11-18 14:14:57,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-18 14:14:57,808 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 11.6) internal successors, (116), 11 states have internal predecessors, (116), 4 states have call successors, (22), 2 states have call predecessors, (22), 3 states have return successors, (20), 3 states have call predecessors, (20), 4 states have call successors, (20) Word has length 106 [2024-11-18 14:14:57,809 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:14:57,814 INFO L225 Difference]: With dead ends: 1003 [2024-11-18 14:14:57,815 INFO L226 Difference]: Without dead ends: 693 [2024-11-18 14:14:57,818 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 230 GetRequests, 209 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=106, Invalid=400, Unknown=0, NotChecked=0, Total=506 [2024-11-18 14:14:57,819 INFO L432 NwaCegarLoop]: 425 mSDtfsCounter, 1290 mSDsluCounter, 2301 mSDsCounter, 0 mSdLazyCounter, 460 mSolverCounterSat, 108 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1290 SdHoareTripleChecker+Valid, 2726 SdHoareTripleChecker+Invalid, 568 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 108 IncrementalHoareTripleChecker+Valid, 460 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-18 14:14:57,820 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1290 Valid, 2726 Invalid, 568 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [108 Valid, 460 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-18 14:14:57,821 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 693 states. [2024-11-18 14:14:57,845 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 693 to 669. [2024-11-18 14:14:57,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 669 states, 530 states have (on average 1.5830188679245283) internal successors, (839), 536 states have internal predecessors, (839), 117 states have call successors, (117), 18 states have call predecessors, (117), 21 states have return successors, (138), 116 states have call predecessors, (138), 116 states have call successors, (138) [2024-11-18 14:14:57,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 669 states to 669 states and 1094 transitions. [2024-11-18 14:14:57,858 INFO L78 Accepts]: Start accepts. Automaton has 669 states and 1094 transitions. Word has length 106 [2024-11-18 14:14:57,858 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:14:57,858 INFO L471 AbstractCegarLoop]: Abstraction has 669 states and 1094 transitions. [2024-11-18 14:14:57,858 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 11.6) internal successors, (116), 11 states have internal predecessors, (116), 4 states have call successors, (22), 2 states have call predecessors, (22), 3 states have return successors, (20), 3 states have call predecessors, (20), 4 states have call successors, (20) [2024-11-18 14:14:57,859 INFO L276 IsEmpty]: Start isEmpty. Operand 669 states and 1094 transitions. [2024-11-18 14:14:57,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-11-18 14:14:57,862 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:14:57,862 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:14:57,886 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-11-18 14:14:58,062 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 14:14:58,063 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:14:58,063 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:14:58,063 INFO L85 PathProgramCache]: Analyzing trace with hash -725397729, now seen corresponding path program 1 times [2024-11-18 14:14:58,064 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:14:58,064 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1971463211] [2024-11-18 14:14:58,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:14:58,064 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:14:58,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:14:58,130 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-18 14:14:58,130 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:14:58,131 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1971463211] [2024-11-18 14:14:58,131 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1971463211] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:14:58,131 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:14:58,131 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 14:14:58,131 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1575579259] [2024-11-18 14:14:58,131 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:14:58,132 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 14:14:58,132 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:14:58,132 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 14:14:58,133 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 14:14:58,133 INFO L87 Difference]: Start difference. First operand 669 states and 1094 transitions. Second operand has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-18 14:14:58,168 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:14:58,169 INFO L93 Difference]: Finished difference Result 1566 states and 2604 transitions. [2024-11-18 14:14:58,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 14:14:58,170 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 109 [2024-11-18 14:14:58,170 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:14:58,176 INFO L225 Difference]: With dead ends: 1566 [2024-11-18 14:14:58,176 INFO L226 Difference]: Without dead ends: 977 [2024-11-18 14:14:58,178 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 [2024-11-18 14:14:58,179 INFO L432 NwaCegarLoop]: 431 mSDtfsCounter, 104 mSDsluCounter, 409 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 119 SdHoareTripleChecker+Valid, 840 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 [2024-11-18 14:14:58,180 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [119 Valid, 840 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 14:14:58,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 977 states. [2024-11-18 14:14:58,215 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 977 to 969. [2024-11-18 14:14:58,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 969 states, 766 states have (on average 1.597911227154047) internal successors, (1224), 772 states have internal predecessors, (1224), 181 states have call successors, (181), 18 states have call predecessors, (181), 21 states have return successors, (212), 180 states have call predecessors, (212), 180 states have call successors, (212) [2024-11-18 14:14:58,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 969 states to 969 states and 1617 transitions. [2024-11-18 14:14:58,223 INFO L78 Accepts]: Start accepts. Automaton has 969 states and 1617 transitions. Word has length 109 [2024-11-18 14:14:58,223 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:14:58,223 INFO L471 AbstractCegarLoop]: Abstraction has 969 states and 1617 transitions. [2024-11-18 14:14:58,223 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-18 14:14:58,223 INFO L276 IsEmpty]: Start isEmpty. Operand 969 states and 1617 transitions. [2024-11-18 14:14:58,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2024-11-18 14:14:58,228 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:14:58,228 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:14:58,228 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-18 14:14:58,228 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:14:58,229 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:14:58,229 INFO L85 PathProgramCache]: Analyzing trace with hash 1316821944, now seen corresponding path program 1 times [2024-11-18 14:14:58,229 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:14:58,229 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [61509596] [2024-11-18 14:14:58,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:14:58,229 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:14:58,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:14:58,298 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-18 14:14:58,298 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:14:58,298 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [61509596] [2024-11-18 14:14:58,298 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [61509596] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:14:58,299 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:14:58,299 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 14:14:58,299 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1779984040] [2024-11-18 14:14:58,299 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:14:58,299 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 14:14:58,300 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:14:58,300 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 14:14:58,300 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 14:14:58,301 INFO L87 Difference]: Start difference. First operand 969 states and 1617 transitions. Second operand has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-18 14:14:58,365 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:14:58,366 INFO L93 Difference]: Finished difference Result 2306 states and 3868 transitions. [2024-11-18 14:14:58,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 14:14:58,366 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 110 [2024-11-18 14:14:58,367 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:14:58,375 INFO L225 Difference]: With dead ends: 2306 [2024-11-18 14:14:58,375 INFO L226 Difference]: Without dead ends: 1470 [2024-11-18 14:14:58,377 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 [2024-11-18 14:14:58,378 INFO L432 NwaCegarLoop]: 421 mSDtfsCounter, 102 mSDsluCounter, 413 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 117 SdHoareTripleChecker+Valid, 834 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 [2024-11-18 14:14:58,378 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [117 Valid, 834 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 14:14:58,380 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1470 states. [2024-11-18 14:14:58,434 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1470 to 1462. [2024-11-18 14:14:58,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1462 states, 1164 states have (on average 1.6030927835051547) internal successors, (1866), 1170 states have internal predecessors, (1866), 276 states have call successors, (276), 18 states have call predecessors, (276), 21 states have return successors, (307), 275 states have call predecessors, (307), 275 states have call successors, (307) [2024-11-18 14:14:58,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1462 states to 1462 states and 2449 transitions. [2024-11-18 14:14:58,446 INFO L78 Accepts]: Start accepts. Automaton has 1462 states and 2449 transitions. Word has length 110 [2024-11-18 14:14:58,447 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:14:58,447 INFO L471 AbstractCegarLoop]: Abstraction has 1462 states and 2449 transitions. [2024-11-18 14:14:58,447 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-18 14:14:58,448 INFO L276 IsEmpty]: Start isEmpty. Operand 1462 states and 2449 transitions. [2024-11-18 14:14:58,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-11-18 14:14:58,453 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:14:58,454 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:14:58,454 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-18 14:14:58,454 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:14:58,454 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:14:58,454 INFO L85 PathProgramCache]: Analyzing trace with hash 15321997, now seen corresponding path program 1 times [2024-11-18 14:14:58,454 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:14:58,455 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1554817480] [2024-11-18 14:14:58,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:14:58,455 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:14:58,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:14:58,517 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-18 14:14:58,517 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:14:58,517 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1554817480] [2024-11-18 14:14:58,517 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1554817480] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:14:58,518 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:14:58,518 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 14:14:58,518 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2054445225] [2024-11-18 14:14:58,518 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:14:58,518 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 14:14:58,519 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:14:58,520 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 14:14:58,520 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 14:14:58,520 INFO L87 Difference]: Start difference. First operand 1462 states and 2449 transitions. Second operand has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-18 14:14:58,587 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:14:58,588 INFO L93 Difference]: Finished difference Result 3408 states and 5752 transitions. [2024-11-18 14:14:58,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 14:14:58,589 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 111 [2024-11-18 14:14:58,589 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:14:58,607 INFO L225 Difference]: With dead ends: 3408 [2024-11-18 14:14:58,607 INFO L226 Difference]: Without dead ends: 2214 [2024-11-18 14:14:58,613 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 [2024-11-18 14:14:58,614 INFO L432 NwaCegarLoop]: 419 mSDtfsCounter, 100 mSDsluCounter, 410 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 829 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 [2024-11-18 14:14:58,614 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [115 Valid, 829 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 14:14:58,617 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2214 states. [2024-11-18 14:14:58,703 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2214 to 2206. [2024-11-18 14:14:58,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2206 states, 1785 states have (on average 1.6072829131652662) internal successors, (2869), 1791 states have internal predecessors, (2869), 399 states have call successors, (399), 18 states have call predecessors, (399), 21 states have return successors, (446), 398 states have call predecessors, (446), 398 states have call successors, (446) [2024-11-18 14:14:58,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2206 states to 2206 states and 3714 transitions. [2024-11-18 14:14:58,722 INFO L78 Accepts]: Start accepts. Automaton has 2206 states and 3714 transitions. Word has length 111 [2024-11-18 14:14:58,722 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:14:58,722 INFO L471 AbstractCegarLoop]: Abstraction has 2206 states and 3714 transitions. [2024-11-18 14:14:58,722 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-18 14:14:58,722 INFO L276 IsEmpty]: Start isEmpty. Operand 2206 states and 3714 transitions. [2024-11-18 14:14:58,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2024-11-18 14:14:58,730 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:14:58,731 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:14:58,731 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-18 14:14:58,731 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:14:58,732 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:14:58,732 INFO L85 PathProgramCache]: Analyzing trace with hash 1908613625, now seen corresponding path program 1 times [2024-11-18 14:14:58,732 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:14:58,732 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1843704404] [2024-11-18 14:14:58,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:14:58,732 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:14:58,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:14:58,836 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-18 14:14:58,836 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:14:58,836 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1843704404] [2024-11-18 14:14:58,836 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1843704404] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:14:58,836 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:14:58,836 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 14:14:58,836 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1545404483] [2024-11-18 14:14:58,837 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:14:58,837 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 14:14:58,837 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:14:58,837 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 14:14:58,837 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 14:14:58,838 INFO L87 Difference]: Start difference. First operand 2206 states and 3714 transitions. Second operand has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-18 14:14:58,941 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:14:58,941 INFO L93 Difference]: Finished difference Result 5117 states and 8675 transitions. [2024-11-18 14:14:58,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 14:14:58,942 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 112 [2024-11-18 14:14:58,942 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:14:58,962 INFO L225 Difference]: With dead ends: 5117 [2024-11-18 14:14:58,962 INFO L226 Difference]: Without dead ends: 3398 [2024-11-18 14:14:58,970 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 [2024-11-18 14:14:58,971 INFO L432 NwaCegarLoop]: 419 mSDtfsCounter, 98 mSDsluCounter, 410 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 113 SdHoareTripleChecker+Valid, 829 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 [2024-11-18 14:14:58,971 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [113 Valid, 829 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 14:14:58,974 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3398 states. [2024-11-18 14:14:59,112 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3398 to 3390. [2024-11-18 14:14:59,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3390 states, 2790 states have (on average 1.6096774193548387) internal successors, (4491), 2796 states have internal predecessors, (4491), 578 states have call successors, (578), 18 states have call predecessors, (578), 21 states have return successors, (651), 577 states have call predecessors, (651), 577 states have call successors, (651) [2024-11-18 14:14:59,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3390 states to 3390 states and 5720 transitions. [2024-11-18 14:14:59,137 INFO L78 Accepts]: Start accepts. Automaton has 3390 states and 5720 transitions. Word has length 112 [2024-11-18 14:14:59,137 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:14:59,137 INFO L471 AbstractCegarLoop]: Abstraction has 3390 states and 5720 transitions. [2024-11-18 14:14:59,138 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-18 14:14:59,138 INFO L276 IsEmpty]: Start isEmpty. Operand 3390 states and 5720 transitions. [2024-11-18 14:14:59,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2024-11-18 14:14:59,146 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:14:59,146 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:14:59,146 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-18 14:14:59,146 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:14:59,146 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:14:59,146 INFO L85 PathProgramCache]: Analyzing trace with hash -593063639, now seen corresponding path program 1 times [2024-11-18 14:14:59,147 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:14:59,147 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [960027998] [2024-11-18 14:14:59,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:14:59,147 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:14:59,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:14:59,198 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-18 14:14:59,198 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:14:59,199 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [960027998] [2024-11-18 14:14:59,199 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [960027998] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:14:59,199 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:14:59,199 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 14:14:59,199 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [863511307] [2024-11-18 14:14:59,199 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:14:59,200 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 14:14:59,200 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:14:59,200 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 14:14:59,200 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 14:14:59,201 INFO L87 Difference]: Start difference. First operand 3390 states and 5720 transitions. Second operand has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-18 14:14:59,423 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:14:59,423 INFO L93 Difference]: Finished difference Result 8190 states and 13891 transitions. [2024-11-18 14:14:59,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 14:14:59,424 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 113 [2024-11-18 14:14:59,424 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:14:59,458 INFO L225 Difference]: With dead ends: 8190 [2024-11-18 14:14:59,458 INFO L226 Difference]: Without dead ends: 5539 [2024-11-18 14:14:59,470 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 [2024-11-18 14:14:59,471 INFO L432 NwaCegarLoop]: 433 mSDtfsCounter, 96 mSDsluCounter, 417 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 111 SdHoareTripleChecker+Valid, 850 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 [2024-11-18 14:14:59,472 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [111 Valid, 850 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 14:14:59,477 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5539 states. [2024-11-18 14:14:59,753 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5539 to 5531. [2024-11-18 14:14:59,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5531 states, 4555 states have (on average 1.6019758507135016) internal successors, (7297), 4561 states have internal predecessors, (7297), 954 states have call successors, (954), 18 states have call predecessors, (954), 21 states have return successors, (1071), 953 states have call predecessors, (1071), 953 states have call successors, (1071) [2024-11-18 14:14:59,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5531 states to 5531 states and 9322 transitions. [2024-11-18 14:14:59,805 INFO L78 Accepts]: Start accepts. Automaton has 5531 states and 9322 transitions. Word has length 113 [2024-11-18 14:14:59,805 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:14:59,805 INFO L471 AbstractCegarLoop]: Abstraction has 5531 states and 9322 transitions. [2024-11-18 14:14:59,806 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-18 14:14:59,806 INFO L276 IsEmpty]: Start isEmpty. Operand 5531 states and 9322 transitions. [2024-11-18 14:14:59,817 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2024-11-18 14:14:59,817 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:14:59,817 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:14:59,817 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-18 14:14:59,818 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:14:59,818 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:14:59,818 INFO L85 PathProgramCache]: Analyzing trace with hash -38691747, now seen corresponding path program 1 times [2024-11-18 14:14:59,818 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:14:59,818 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1963582310] [2024-11-18 14:14:59,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:14:59,819 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:14:59,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:14:59,871 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-18 14:14:59,871 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:14:59,872 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1963582310] [2024-11-18 14:14:59,872 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1963582310] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:14:59,872 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:14:59,872 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 14:14:59,872 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1959356207] [2024-11-18 14:14:59,872 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:14:59,873 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 14:14:59,873 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:14:59,873 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 14:14:59,873 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 14:14:59,874 INFO L87 Difference]: Start difference. First operand 5531 states and 9322 transitions. Second operand has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-18 14:15:00,140 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:15:00,141 INFO L93 Difference]: Finished difference Result 13612 states and 23081 transitions. [2024-11-18 14:15:00,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 14:15:00,142 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 114 [2024-11-18 14:15:00,142 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:15:00,197 INFO L225 Difference]: With dead ends: 13612 [2024-11-18 14:15:00,199 INFO L226 Difference]: Without dead ends: 9222 [2024-11-18 14:15:00,215 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 [2024-11-18 14:15:00,216 INFO L432 NwaCegarLoop]: 419 mSDtfsCounter, 94 mSDsluCounter, 413 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 832 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 [2024-11-18 14:15:00,217 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [109 Valid, 832 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 14:15:00,228 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9222 states. [2024-11-18 14:15:00,629 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9222 to 9214. [2024-11-18 14:15:00,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9214 states, 7632 states have (on average 1.599056603773585) internal successors, (12204), 7638 states have internal predecessors, (12204), 1560 states have call successors, (1560), 18 states have call predecessors, (1560), 21 states have return successors, (1755), 1559 states have call predecessors, (1755), 1559 states have call successors, (1755) [2024-11-18 14:15:00,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9214 states to 9214 states and 15519 transitions. [2024-11-18 14:15:00,714 INFO L78 Accepts]: Start accepts. Automaton has 9214 states and 15519 transitions. Word has length 114 [2024-11-18 14:15:00,715 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:15:00,715 INFO L471 AbstractCegarLoop]: Abstraction has 9214 states and 15519 transitions. [2024-11-18 14:15:00,716 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-18 14:15:00,716 INFO L276 IsEmpty]: Start isEmpty. Operand 9214 states and 15519 transitions. [2024-11-18 14:15:00,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2024-11-18 14:15:00,732 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:15:00,733 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:15:00,733 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-18 14:15:00,733 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:15:00,733 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:15:00,734 INFO L85 PathProgramCache]: Analyzing trace with hash 1889380491, now seen corresponding path program 1 times [2024-11-18 14:15:00,734 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:15:00,734 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2133948671] [2024-11-18 14:15:00,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:15:00,734 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:15:00,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:15:00,811 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-18 14:15:00,811 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:15:00,812 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2133948671] [2024-11-18 14:15:00,812 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2133948671] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:15:00,812 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:15:00,812 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 14:15:00,813 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1061176046] [2024-11-18 14:15:00,813 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:15:00,813 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 14:15:00,814 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:15:00,814 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 14:15:00,814 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 14:15:00,815 INFO L87 Difference]: Start difference. First operand 9214 states and 15519 transitions. Second operand has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-18 14:15:01,365 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:15:01,365 INFO L93 Difference]: Finished difference Result 23796 states and 40241 transitions. [2024-11-18 14:15:01,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 14:15:01,366 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 115 [2024-11-18 14:15:01,366 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:15:01,454 INFO L225 Difference]: With dead ends: 23796 [2024-11-18 14:15:01,454 INFO L226 Difference]: Without dead ends: 16175 [2024-11-18 14:15:01,493 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 [2024-11-18 14:15:01,494 INFO L432 NwaCegarLoop]: 438 mSDtfsCounter, 92 mSDsluCounter, 418 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 107 SdHoareTripleChecker+Valid, 856 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 [2024-11-18 14:15:01,495 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [107 Valid, 856 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 14:15:01,512 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16175 states. [2024-11-18 14:15:02,347 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16175 to 16167. [2024-11-18 14:15:02,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16167 states, 13382 states have (on average 1.5897474219100285) internal successors, (21274), 13388 states have internal predecessors, (21274), 2763 states have call successors, (2763), 18 states have call predecessors, (2763), 21 states have return successors, (3102), 2762 states have call predecessors, (3102), 2762 states have call successors, (3102) [2024-11-18 14:15:02,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16167 states to 16167 states and 27139 transitions. [2024-11-18 14:15:02,481 INFO L78 Accepts]: Start accepts. Automaton has 16167 states and 27139 transitions. Word has length 115 [2024-11-18 14:15:02,482 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:15:02,482 INFO L471 AbstractCegarLoop]: Abstraction has 16167 states and 27139 transitions. [2024-11-18 14:15:02,482 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-18 14:15:02,483 INFO L276 IsEmpty]: Start isEmpty. Operand 16167 states and 27139 transitions. [2024-11-18 14:15:02,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2024-11-18 14:15:02,506 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:15:02,506 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:15:02,507 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-18 14:15:02,507 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:15:02,507 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:15:02,508 INFO L85 PathProgramCache]: Analyzing trace with hash -550230466, now seen corresponding path program 1 times [2024-11-18 14:15:02,508 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:15:02,508 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1102805149] [2024-11-18 14:15:02,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:15:02,508 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:15:02,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:15:02,579 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-18 14:15:02,580 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:15:02,580 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1102805149] [2024-11-18 14:15:02,580 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1102805149] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:15:02,580 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:15:02,580 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 14:15:02,580 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1312424972] [2024-11-18 14:15:02,581 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:15:02,581 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 14:15:02,581 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:15:02,582 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 14:15:02,582 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 14:15:02,582 INFO L87 Difference]: Start difference. First operand 16167 states and 27139 transitions. Second operand has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-18 14:15:03,542 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:15:03,542 INFO L93 Difference]: Finished difference Result 42762 states and 72098 transitions. [2024-11-18 14:15:03,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 14:15:03,543 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 116 [2024-11-18 14:15:03,543 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:15:03,686 INFO L225 Difference]: With dead ends: 42762 [2024-11-18 14:15:03,686 INFO L226 Difference]: Without dead ends: 28830 [2024-11-18 14:15:03,736 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 [2024-11-18 14:15:03,737 INFO L432 NwaCegarLoop]: 419 mSDtfsCounter, 90 mSDsluCounter, 413 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 105 SdHoareTripleChecker+Valid, 832 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 [2024-11-18 14:15:03,738 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [105 Valid, 832 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 14:15:03,766 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28830 states. [2024-11-18 14:15:05,130 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28830 to 28822. [2024-11-18 14:15:05,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28822 states, 23998 states have (on average 1.5851737644803734) internal successors, (38041), 24004 states have internal predecessors, (38041), 4802 states have call successors, (4802), 18 states have call predecessors, (4802), 21 states have return successors, (5415), 4801 states have call predecessors, (5415), 4801 states have call successors, (5415) [2024-11-18 14:15:05,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28822 states to 28822 states and 48258 transitions. [2024-11-18 14:15:05,324 INFO L78 Accepts]: Start accepts. Automaton has 28822 states and 48258 transitions. Word has length 116 [2024-11-18 14:15:05,325 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:15:05,325 INFO L471 AbstractCegarLoop]: Abstraction has 28822 states and 48258 transitions. [2024-11-18 14:15:05,325 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-18 14:15:05,325 INFO L276 IsEmpty]: Start isEmpty. Operand 28822 states and 48258 transitions. [2024-11-18 14:15:05,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2024-11-18 14:15:05,349 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:15:05,349 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:15:05,350 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-18 14:15:05,350 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:15:05,350 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:15:05,350 INFO L85 PathProgramCache]: Analyzing trace with hash 538828877, now seen corresponding path program 1 times [2024-11-18 14:15:05,351 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:15:05,351 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1995046709] [2024-11-18 14:15:05,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:15:05,352 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:15:05,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:15:05,419 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-18 14:15:05,420 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:15:05,420 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1995046709] [2024-11-18 14:15:05,420 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1995046709] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:15:05,420 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:15:05,421 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 14:15:05,421 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2076010470] [2024-11-18 14:15:05,421 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:15:05,422 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 14:15:05,422 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:15:05,423 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 14:15:05,423 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 14:15:05,423 INFO L87 Difference]: Start difference. First operand 28822 states and 48258 transitions. Second operand has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-18 14:15:07,120 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:15:07,120 INFO L93 Difference]: Finished difference Result 78524 states and 131930 transitions. [2024-11-18 14:15:07,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 14:15:07,121 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 117 [2024-11-18 14:15:07,121 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:15:07,668 INFO L225 Difference]: With dead ends: 78524 [2024-11-18 14:15:07,668 INFO L226 Difference]: Without dead ends: 52709 [2024-11-18 14:15:07,744 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 [2024-11-18 14:15:07,745 INFO L432 NwaCegarLoop]: 426 mSDtfsCounter, 88 mSDsluCounter, 414 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 840 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 [2024-11-18 14:15:07,745 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [103 Valid, 840 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 14:15:07,783 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52709 states. [2024-11-18 14:15:10,053 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52709 to 52701. [2024-11-18 14:15:10,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52701 states, 44162 states have (on average 1.5792763008921697) internal successors, (69744), 44168 states have internal predecessors, (69744), 8517 states have call successors, (8517), 18 states have call predecessors, (8517), 21 states have return successors, (9662), 8516 states have call predecessors, (9662), 8516 states have call successors, (9662) [2024-11-18 14:15:10,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52701 states to 52701 states and 87923 transitions. [2024-11-18 14:15:10,355 INFO L78 Accepts]: Start accepts. Automaton has 52701 states and 87923 transitions. Word has length 117 [2024-11-18 14:15:10,355 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:15:10,355 INFO L471 AbstractCegarLoop]: Abstraction has 52701 states and 87923 transitions. [2024-11-18 14:15:10,355 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-18 14:15:10,356 INFO L276 IsEmpty]: Start isEmpty. Operand 52701 states and 87923 transitions. [2024-11-18 14:15:10,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2024-11-18 14:15:10,385 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:15:10,385 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:15:10,385 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-18 14:15:10,386 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:15:10,386 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:15:10,386 INFO L85 PathProgramCache]: Analyzing trace with hash 736585342, now seen corresponding path program 1 times [2024-11-18 14:15:10,386 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:15:10,386 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [728368021] [2024-11-18 14:15:10,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:15:10,387 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:15:10,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:15:10,447 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-18 14:15:10,448 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:15:10,448 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [728368021] [2024-11-18 14:15:10,448 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [728368021] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:15:10,448 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:15:10,448 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 14:15:10,448 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2071873647] [2024-11-18 14:15:10,448 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:15:10,449 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 14:15:10,449 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:15:10,449 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 14:15:10,449 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 14:15:10,449 INFO L87 Difference]: Start difference. First operand 52701 states and 87923 transitions. Second operand has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-18 14:15:12,710 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:15:12,710 INFO L93 Difference]: Finished difference Result 98295 states and 164291 transitions. [2024-11-18 14:15:12,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 14:15:12,711 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 118 [2024-11-18 14:15:12,711 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:15:13,176 INFO L225 Difference]: With dead ends: 98295 [2024-11-18 14:15:13,176 INFO L226 Difference]: Without dead ends: 98168 [2024-11-18 14:15:13,234 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 [2024-11-18 14:15:13,235 INFO L432 NwaCegarLoop]: 421 mSDtfsCounter, 83 mSDsluCounter, 417 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 97 SdHoareTripleChecker+Valid, 838 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 14:15:13,235 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [97 Valid, 838 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 14:15:13,521 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98168 states. [2024-11-18 14:15:16,907 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98168 to 98160. [2024-11-18 14:15:17,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 98160 states, 82822 states have (on average 1.5719374079350896) internal successors, (130191), 82828 states have internal predecessors, (130191), 15316 states have call successors, (15316), 18 states have call predecessors, (15316), 21 states have return successors, (17507), 15315 states have call predecessors, (17507), 15315 states have call successors, (17507) [2024-11-18 14:15:17,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98160 states to 98160 states and 163014 transitions. [2024-11-18 14:15:17,505 INFO L78 Accepts]: Start accepts. Automaton has 98160 states and 163014 transitions. Word has length 118 [2024-11-18 14:15:17,506 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:15:17,506 INFO L471 AbstractCegarLoop]: Abstraction has 98160 states and 163014 transitions. [2024-11-18 14:15:17,506 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-18 14:15:17,506 INFO L276 IsEmpty]: Start isEmpty. Operand 98160 states and 163014 transitions. [2024-11-18 14:15:17,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2024-11-18 14:15:17,533 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:15:17,534 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:15:17,534 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-18 14:15:17,534 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:15:17,534 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:15:17,535 INFO L85 PathProgramCache]: Analyzing trace with hash 519306732, now seen corresponding path program 1 times [2024-11-18 14:15:17,535 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:15:17,535 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1532885970] [2024-11-18 14:15:17,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:15:17,535 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:15:17,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:15:17,890 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-18 14:15:17,891 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:15:17,891 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1532885970] [2024-11-18 14:15:17,891 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1532885970] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:15:17,891 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:15:17,891 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-18 14:15:17,891 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1309206245] [2024-11-18 14:15:17,892 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:15:17,893 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-18 14:15:17,893 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:15:17,894 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-18 14:15:17,894 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2024-11-18 14:15:17,895 INFO L87 Difference]: Start difference. First operand 98160 states and 163014 transitions. Second operand has 12 states, 11 states have (on average 7.454545454545454) internal successors, (82), 10 states have internal predecessors, (82), 5 states have call successors, (13), 3 states have call predecessors, (13), 3 states have return successors, (11), 6 states have call predecessors, (11), 5 states have call successors, (11) [2024-11-18 14:15:23,144 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:15:23,144 INFO L93 Difference]: Finished difference Result 195604 states and 330342 transitions. [2024-11-18 14:15:23,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-11-18 14:15:23,145 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 7.454545454545454) internal successors, (82), 10 states have internal predecessors, (82), 5 states have call successors, (13), 3 states have call predecessors, (13), 3 states have return successors, (11), 6 states have call predecessors, (11), 5 states have call successors, (11) Word has length 119 [2024-11-18 14:15:23,145 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:15:24,077 INFO L225 Difference]: With dead ends: 195604 [2024-11-18 14:15:24,077 INFO L226 Difference]: Without dead ends: 195483 [2024-11-18 14:15:24,167 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=125, Invalid=525, Unknown=0, NotChecked=0, Total=650 [2024-11-18 14:15:24,167 INFO L432 NwaCegarLoop]: 509 mSDtfsCounter, 1098 mSDsluCounter, 4354 mSDsCounter, 0 mSdLazyCounter, 793 mSolverCounterSat, 272 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1098 SdHoareTripleChecker+Valid, 4863 SdHoareTripleChecker+Invalid, 1065 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 272 IncrementalHoareTripleChecker+Valid, 793 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-18 14:15:24,168 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1098 Valid, 4863 Invalid, 1065 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [272 Valid, 793 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-18 14:15:24,331 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 195483 states. [2024-11-18 14:15:31,319 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 195483 to 195446. [2024-11-18 14:15:31,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 195446 states, 164978 states have (on average 1.572864260689304) internal successors, (259488), 164880 states have internal predecessors, (259488), 30417 states have call successors, (30417), 44 states have call predecessors, (30417), 50 states have return successors, (38070), 30527 states have call predecessors, (38070), 30414 states have call successors, (38070) [2024-11-18 14:15:33,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 195446 states to 195446 states and 327975 transitions. [2024-11-18 14:15:33,255 INFO L78 Accepts]: Start accepts. Automaton has 195446 states and 327975 transitions. Word has length 119 [2024-11-18 14:15:33,256 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:15:33,256 INFO L471 AbstractCegarLoop]: Abstraction has 195446 states and 327975 transitions. [2024-11-18 14:15:33,256 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 7.454545454545454) internal successors, (82), 10 states have internal predecessors, (82), 5 states have call successors, (13), 3 states have call predecessors, (13), 3 states have return successors, (11), 6 states have call predecessors, (11), 5 states have call successors, (11) [2024-11-18 14:15:33,256 INFO L276 IsEmpty]: Start isEmpty. Operand 195446 states and 327975 transitions. [2024-11-18 14:15:33,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2024-11-18 14:15:33,301 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:15:33,302 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:15:33,302 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-18 14:15:33,302 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:15:33,302 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:15:33,303 INFO L85 PathProgramCache]: Analyzing trace with hash -1953120415, now seen corresponding path program 1 times [2024-11-18 14:15:33,303 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:15:33,303 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [353468634] [2024-11-18 14:15:33,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:15:33,303 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:15:33,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:15:33,498 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-18 14:15:33,499 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:15:33,499 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [353468634] [2024-11-18 14:15:33,499 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [353468634] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:15:33,499 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:15:33,499 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-18 14:15:33,499 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1407905012] [2024-11-18 14:15:33,499 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:15:33,500 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-18 14:15:33,500 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:15:33,500 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-18 14:15:33,500 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-18 14:15:33,501 INFO L87 Difference]: Start difference. First operand 195446 states and 327975 transitions. Second operand has 8 states, 8 states have (on average 10.375) internal successors, (83), 6 states have internal predecessors, (83), 4 states have call successors, (13), 3 states have call predecessors, (13), 1 states have return successors, (11), 4 states have call predecessors, (11), 4 states have call successors, (11) [2024-11-18 14:15:38,625 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:15:38,625 INFO L93 Difference]: Finished difference Result 196000 states and 328779 transitions. [2024-11-18 14:15:38,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-18 14:15:38,627 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.375) internal successors, (83), 6 states have internal predecessors, (83), 4 states have call successors, (13), 3 states have call predecessors, (13), 1 states have return successors, (11), 4 states have call predecessors, (11), 4 states have call successors, (11) Word has length 120 [2024-11-18 14:15:38,627 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:15:39,458 INFO L225 Difference]: With dead ends: 196000 [2024-11-18 14:15:39,459 INFO L226 Difference]: Without dead ends: 195514 [2024-11-18 14:15:39,534 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=115, Unknown=0, NotChecked=0, Total=156 [2024-11-18 14:15:39,534 INFO L432 NwaCegarLoop]: 392 mSDtfsCounter, 537 mSDsluCounter, 1945 mSDsCounter, 0 mSdLazyCounter, 172 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 538 SdHoareTripleChecker+Valid, 2337 SdHoareTripleChecker+Invalid, 208 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 172 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-18 14:15:39,534 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [538 Valid, 2337 Invalid, 208 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 172 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-18 14:15:39,664 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 195514 states.