./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/product-lines/email_spec27_product28.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 023d838f 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_spec27_product28.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 4fb12138b73b283c9fdc444b2c9ebb4aa3340005d69e98d463fd0b0beb9c1e74 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-023d838-m [2024-11-09 23:03:47,917 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 23:03:47,991 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-09 23:03:47,999 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 23:03:48,000 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 23:03:48,026 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 23:03:48,027 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 23:03:48,028 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 23:03:48,028 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-09 23:03:48,029 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-09 23:03:48,030 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 23:03:48,030 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 23:03:48,031 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-09 23:03:48,033 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-09 23:03:48,033 INFO L153 SettingsManager]: * Use SBE=true [2024-11-09 23:03:48,034 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 23:03:48,034 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 23:03:48,034 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 23:03:48,034 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 23:03:48,035 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 23:03:48,035 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 23:03:48,036 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 23:03:48,036 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 23:03:48,040 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 23:03:48,040 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 23:03:48,041 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 23:03:48,041 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 23:03:48,041 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 23:03:48,041 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-09 23:03:48,041 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-09 23:03:48,042 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 23:03:48,042 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 23:03:48,042 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 23:03:48,042 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 23:03:48,042 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 23:03:48,043 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 23:03:48,043 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-09 23:03:48,043 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 23:03:48,044 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 23:03:48,044 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-09 23:03:48,044 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-09 23:03:48,046 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 23:03:48,046 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4fb12138b73b283c9fdc444b2c9ebb4aa3340005d69e98d463fd0b0beb9c1e74 [2024-11-09 23:03:48,301 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 23:03:48,329 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 23:03:48,331 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 23:03:48,332 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 23:03:48,333 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 23:03:48,334 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/email_spec27_product28.cil.c [2024-11-09 23:03:49,797 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 23:03:50,084 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 23:03:50,086 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/email_spec27_product28.cil.c [2024-11-09 23:03:50,115 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c545be93b/8782b9faedc643d7911af00aa9d7adae/FLAG12f3b27cc [2024-11-09 23:03:50,364 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c545be93b/8782b9faedc643d7911af00aa9d7adae [2024-11-09 23:03:50,368 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 23:03:50,370 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 23:03:50,371 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 23:03:50,371 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 23:03:50,376 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 23:03:50,376 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 11:03:50" (1/1) ... [2024-11-09 23:03:50,377 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6449668e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:03:50, skipping insertion in model container [2024-11-09 23:03:50,377 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 11:03:50" (1/1) ... [2024-11-09 23:03:50,438 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 23:03:50,924 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/email_spec27_product28.cil.c[32786,32799] [2024-11-09 23:03:50,990 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 23:03:51,006 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 23:03:51,018 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"VerifyForward_spec.i","") [48] [2024-11-09 23:03:51,020 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [95] [2024-11-09 23:03:51,020 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Email.i","") [386] [2024-11-09 23:03:51,020 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [532] [2024-11-09 23:03:51,020 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"EmailLib.i","") [898] [2024-11-09 23:03:51,021 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Client.i","") [1300] [2024-11-09 23:03:51,021 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [1622] [2024-11-09 23:03:51,021 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Util.i","") [1631] [2024-11-09 23:03:51,021 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [1648] [2024-11-09 23:03:51,021 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"ClientLib.i","") [1683] [2024-11-09 23:03:51,021 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [2752] [2024-11-09 23:03:51,078 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/email_spec27_product28.cil.c[32786,32799] [2024-11-09 23:03:51,102 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 23:03:51,143 INFO L204 MainTranslator]: Completed translation [2024-11-09 23:03:51,144 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:03:51 WrapperNode [2024-11-09 23:03:51,144 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 23:03:51,145 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 23:03:51,145 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 23:03:51,146 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 23:03:51,152 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:03:51" (1/1) ... [2024-11-09 23:03:51,185 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:03:51" (1/1) ... [2024-11-09 23:03:51,229 INFO L138 Inliner]: procedures = 128, calls = 197, calls flagged for inlining = 54, calls inlined = 45, statements flattened = 865 [2024-11-09 23:03:51,230 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 23:03:51,231 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 23:03:51,231 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 23:03:51,231 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 23:03:51,248 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:03:51" (1/1) ... [2024-11-09 23:03:51,248 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:03:51" (1/1) ... [2024-11-09 23:03:51,257 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:03:51" (1/1) ... [2024-11-09 23:03:51,290 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]. [2024-11-09 23:03:51,290 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:03:51" (1/1) ... [2024-11-09 23:03:51,291 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:03:51" (1/1) ... [2024-11-09 23:03:51,307 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:03:51" (1/1) ... [2024-11-09 23:03:51,312 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:03:51" (1/1) ... [2024-11-09 23:03:51,317 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:03:51" (1/1) ... [2024-11-09 23:03:51,323 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:03:51" (1/1) ... [2024-11-09 23:03:51,335 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 23:03:51,337 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-09 23:03:51,337 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-09 23:03:51,337 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-09 23:03:51,338 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:03:51" (1/1) ... [2024-11-09 23:03:51,345 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 23:03:51,356 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 23:03:51,377 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) [2024-11-09 23:03:51,381 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 [2024-11-09 23:03:51,425 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2024-11-09 23:03:51,425 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2024-11-09 23:03:51,425 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2024-11-09 23:03:51,425 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2024-11-09 23:03:51,426 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2024-11-09 23:03:51,426 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2024-11-09 23:03:51,426 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2024-11-09 23:03:51,426 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2024-11-09 23:03:51,426 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2024-11-09 23:03:51,426 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2024-11-09 23:03:51,426 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2024-11-09 23:03:51,426 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2024-11-09 23:03:51,427 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2024-11-09 23:03:51,427 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2024-11-09 23:03:51,427 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2024-11-09 23:03:51,427 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2024-11-09 23:03:51,427 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2024-11-09 23:03:51,427 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2024-11-09 23:03:51,427 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2024-11-09 23:03:51,427 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2024-11-09 23:03:51,428 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2024-11-09 23:03:51,428 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2024-11-09 23:03:51,428 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2024-11-09 23:03:51,428 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2024-11-09 23:03:51,428 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 23:03:51,428 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2024-11-09 23:03:51,428 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2024-11-09 23:03:51,429 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2024-11-09 23:03:51,429 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2024-11-09 23:03:51,429 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2024-11-09 23:03:51,429 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2024-11-09 23:03:51,429 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2024-11-09 23:03:51,429 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2024-11-09 23:03:51,429 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2024-11-09 23:03:51,429 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2024-11-09 23:03:51,429 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2024-11-09 23:03:51,429 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2024-11-09 23:03:51,429 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2024-11-09 23:03:51,429 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2024-11-09 23:03:51,429 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2024-11-09 23:03:51,430 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2024-11-09 23:03:51,430 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2024-11-09 23:03:51,430 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2024-11-09 23:03:51,430 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2024-11-09 23:03:51,430 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2024-11-09 23:03:51,430 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-09 23:03:51,430 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-09 23:03:51,430 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-09 23:03:51,430 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-09 23:03:51,430 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2024-11-09 23:03:51,430 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2024-11-09 23:03:51,431 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 23:03:51,431 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 23:03:51,605 INFO L256 CfgBuilder]: Building ICFG [2024-11-09 23:03:51,607 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 23:03:51,824 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L2729-1: getClientId_#res#1 := getClientId_~retValue_acc~43#1; [2024-11-09 23:03:51,833 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L1207: #res := ~retValue_acc~16; [2024-11-09 23:03:51,840 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L1281: #res := ~retValue_acc~18; [2024-11-09 23:03:51,851 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L1540: #res := ~retValue_acc~23; [2024-11-09 23:03:51,886 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L2386: #res#1 := ~retValue_acc~38#1; [2024-11-09 23:03:51,886 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L2341-1: getClientKeyringSize_#res#1 := getClientKeyringSize_~retValue_acc~37#1; [2024-11-09 23:03:51,921 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L2610: #res := ~retValue_acc~41; [2024-11-09 23:03:51,937 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L2294: #res := ~retValue_acc~36; [2024-11-09 23:03:51,962 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L529-1: createEmail_#res#1 := createEmail_~retValue_acc~4#1; [2024-11-09 23:03:51,984 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L1133: #res := ~retValue_acc~14; [2024-11-09 23:03:51,999 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L1170: #res := ~retValue_acc~15; [2024-11-09 23:03:52,005 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L1244: #res := ~retValue_acc~17; [2024-11-09 23:03:52,025 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L1018: #res := ~retValue_acc~11; [2024-11-09 23:03:52,296 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L1497-1: is_queue_empty_#res#1 := is_queue_empty_~retValue_acc~20#1; [2024-11-09 23:03:52,296 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L1506-1: get_queued_client_#res#1 := get_queued_client_~retValue_acc~21#1; [2024-11-09 23:03:52,296 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L1680-1: valid_product_#res#1 := valid_product_~retValue_acc~26#1; [2024-11-09 23:03:52,297 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L1515-1: get_queued_email_#res#1 := get_queued_email_~retValue_acc~22#1; [2024-11-09 23:03:52,297 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L2556-1: getClientKeyringPublicKey_#res#1 := getClientKeyringPublicKey_~retValue_acc~40#1; [2024-11-09 23:03:52,297 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L2449-1: getClientKeyringUser_#res#1 := getClientKeyringUser_~retValue_acc~39#1; [2024-11-09 23:03:52,303 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L981: #res := ~retValue_acc~10; [2024-11-09 23:03:52,312 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L505: #res#1 := ~retValue_acc~2#1; [2024-11-09 23:03:52,312 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L485-1: isReadable__wrappee__Keys_#res#1 := isReadable__wrappee__Keys_~retValue_acc~1#1; [2024-11-09 23:03:52,440 INFO L? ?]: Removed 409 outVars from TransFormulas that were not future-live. [2024-11-09 23:03:52,440 INFO L307 CfgBuilder]: Performing block encoding [2024-11-09 23:03:52,465 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 23:03:52,468 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-09 23:03:52,469 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 09.11 11:03:52 BoogieIcfgContainer [2024-11-09 23:03:52,469 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-09 23:03:52,471 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 23:03:52,471 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 23:03:52,475 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 23:03:52,475 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 11:03:50" (1/3) ... [2024-11-09 23:03:52,476 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3635fbf5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 11:03:52, skipping insertion in model container [2024-11-09 23:03:52,476 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:03:51" (2/3) ... [2024-11-09 23:03:52,478 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3635fbf5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 11:03:52, skipping insertion in model container [2024-11-09 23:03:52,478 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 09.11 11:03:52" (3/3) ... [2024-11-09 23:03:52,480 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec27_product28.cil.c [2024-11-09 23:03:52,495 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 23:03:52,496 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-09 23:03:52,579 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 23:03:52,587 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;@3519fa0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 23:03:52,591 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-09 23:03:52,599 INFO L276 IsEmpty]: Start isEmpty. Operand has 346 states, 270 states have (on average 1.5) internal successors, (405), 274 states have internal predecessors, (405), 51 states have call successors, (51), 23 states have call predecessors, (51), 23 states have return successors, (51), 51 states have call predecessors, (51), 51 states have call successors, (51) [2024-11-09 23:03:52,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2024-11-09 23:03:52,627 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:03:52,628 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 23:03:52,628 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:03:52,655 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:03:52,656 INFO L85 PathProgramCache]: Analyzing trace with hash -1446766612, now seen corresponding path program 1 times [2024-11-09 23:03:52,667 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:03:52,668 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1688367141] [2024-11-09 23:03:52,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:03:52,669 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:03:52,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:03:53,306 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-09 23:03:53,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:03:53,326 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-09 23:03:53,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:03:53,335 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-09 23:03:53,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:03:53,377 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-09 23:03:53,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:03:53,382 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-09 23:03:53,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:03:53,387 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-09 23:03:53,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:03:53,419 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-09 23:03:53,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:03:53,423 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-11-09 23:03:53,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:03:53,425 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-09 23:03:53,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:03:53,432 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-09 23:03:53,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:03:53,437 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-09 23:03:53,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:03:53,440 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-09 23:03:53,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:03:53,447 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-09 23:03:53,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:03:53,450 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-11-09 23:03:53,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:03:53,458 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-09 23:03:53,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:03:53,464 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-11-09 23:03:53,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:03:53,471 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2024-11-09 23:03:53,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:03:53,474 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2024-11-09 23:03:53,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:03:53,479 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2024-11-09 23:03:53,481 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:03:53,481 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1688367141] [2024-11-09 23:03:53,481 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1688367141] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 23:03:53,482 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1507160738] [2024-11-09 23:03:53,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:03:53,482 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 23:03:53,483 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 23:03:53,485 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) [2024-11-09 23:03:53,486 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-09 23:03:53,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:03:53,851 INFO L255 TraceCheckSpWp]: Trace formula consists of 1134 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-09 23:03:53,861 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 23:03:53,896 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2024-11-09 23:03:53,897 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 23:03:53,897 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1507160738] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:03:53,897 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 23:03:53,897 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [8] total 8 [2024-11-09 23:03:53,900 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2061983790] [2024-11-09 23:03:53,904 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:03:53,911 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-09 23:03:53,911 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:03:53,938 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-09 23:03:53,939 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-09 23:03:53,944 INFO L87 Difference]: Start difference. First operand has 346 states, 270 states have (on average 1.5) internal successors, (405), 274 states have internal predecessors, (405), 51 states have call successors, (51), 23 states have call predecessors, (51), 23 states have return successors, (51), 51 states have call predecessors, (51), 51 states have call successors, (51) Second operand has 2 states, 2 states have (on average 38.5) internal successors, (77), 2 states have internal predecessors, (77), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-09 23:03:53,995 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:03:53,995 INFO L93 Difference]: Finished difference Result 532 states and 765 transitions. [2024-11-09 23:03:53,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-09 23:03:53,997 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 38.5) internal successors, (77), 2 states have internal predecessors, (77), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 140 [2024-11-09 23:03:53,998 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:03:54,019 INFO L225 Difference]: With dead ends: 532 [2024-11-09 23:03:54,019 INFO L226 Difference]: Without dead ends: 338 [2024-11-09 23:03:54,023 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 179 GetRequests, 173 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-09 23:03:54,026 INFO L432 NwaCegarLoop]: 502 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, 502 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 [2024-11-09 23:03:54,026 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 502 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 23:03:54,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 338 states. [2024-11-09 23:03:54,100 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 338 to 338. [2024-11-09 23:03:54,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 338 states, 263 states have (on average 1.494296577946768) internal successors, (393), 266 states have internal predecessors, (393), 51 states have call successors, (51), 23 states have call predecessors, (51), 23 states have return successors, (50), 50 states have call predecessors, (50), 50 states have call successors, (50) [2024-11-09 23:03:54,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 338 states to 338 states and 494 transitions. [2024-11-09 23:03:54,109 INFO L78 Accepts]: Start accepts. Automaton has 338 states and 494 transitions. Word has length 140 [2024-11-09 23:03:54,110 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:03:54,111 INFO L471 AbstractCegarLoop]: Abstraction has 338 states and 494 transitions. [2024-11-09 23:03:54,111 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 38.5) internal successors, (77), 2 states have internal predecessors, (77), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-09 23:03:54,111 INFO L276 IsEmpty]: Start isEmpty. Operand 338 states and 494 transitions. [2024-11-09 23:03:54,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2024-11-09 23:03:54,116 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:03:54,117 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 23:03:54,141 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-09 23:03:54,321 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 [2024-11-09 23:03:54,322 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:03:54,322 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:03:54,322 INFO L85 PathProgramCache]: Analyzing trace with hash -1774480922, now seen corresponding path program 1 times [2024-11-09 23:03:54,323 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:03:54,323 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [10619799] [2024-11-09 23:03:54,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:03:54,323 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:03:54,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:03:54,651 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-09 23:03:54,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:03:54,669 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-09 23:03:54,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:03:54,674 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-09 23:03:54,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:03:54,703 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-09 23:03:54,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:03:54,708 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-09 23:03:54,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:03:54,711 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-09 23:03:54,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:03:54,727 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-09 23:03:54,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:03:54,731 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-09 23:03:54,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:03:54,734 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-09 23:03:54,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:03:54,737 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-11-09 23:03:54,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:03:54,741 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-11-09 23:03:54,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:03:54,746 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-11-09 23:03:54,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:03:54,748 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2024-11-09 23:03:54,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:03:54,752 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-09 23:03:54,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:03:54,757 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-09 23:03:54,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:03:54,759 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-11-09 23:03:54,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:03:54,764 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2024-11-09 23:03:54,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:03:54,768 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-11-09 23:03:54,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:03:54,771 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2024-11-09 23:03:54,771 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:03:54,771 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [10619799] [2024-11-09 23:03:54,771 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [10619799] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 23:03:54,771 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [879680163] [2024-11-09 23:03:54,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:03:54,772 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 23:03:54,772 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 23:03:54,774 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) [2024-11-09 23:03:54,776 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-09 23:03:55,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:03:55,101 INFO L255 TraceCheckSpWp]: Trace formula consists of 1136 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-09 23:03:55,108 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 23:03:55,139 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2024-11-09 23:03:55,140 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 23:03:55,140 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [879680163] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:03:55,140 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 23:03:55,140 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [8] total 9 [2024-11-09 23:03:55,140 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [363908990] [2024-11-09 23:03:55,141 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:03:55,142 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 23:03:55,142 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:03:55,143 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 23:03:55,143 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-09 23:03:55,143 INFO L87 Difference]: Start difference. First operand 338 states and 494 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, (20), 2 states have call predecessors, (20), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-09 23:03:55,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:03:55,205 INFO L93 Difference]: Finished difference Result 521 states and 745 transitions. [2024-11-09 23:03:55,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 23:03:55,208 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, (20), 2 states have call predecessors, (20), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 142 [2024-11-09 23:03:55,208 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:03:55,215 INFO L225 Difference]: With dead ends: 521 [2024-11-09 23:03:55,215 INFO L226 Difference]: Without dead ends: 341 [2024-11-09 23:03:55,216 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 181 GetRequests, 174 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-09 23:03:55,218 INFO L432 NwaCegarLoop]: 493 mSDtfsCounter, 0 mSDsluCounter, 491 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 984 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 23:03:55,221 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 984 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 23:03:55,223 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 341 states. [2024-11-09 23:03:55,249 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 341 to 341. [2024-11-09 23:03:55,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 341 states, 266 states have (on average 1.4887218045112782) internal successors, (396), 269 states have internal predecessors, (396), 51 states have call successors, (51), 23 states have call predecessors, (51), 23 states have return successors, (50), 50 states have call predecessors, (50), 50 states have call successors, (50) [2024-11-09 23:03:55,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 341 states to 341 states and 497 transitions. [2024-11-09 23:03:55,257 INFO L78 Accepts]: Start accepts. Automaton has 341 states and 497 transitions. Word has length 142 [2024-11-09 23:03:55,257 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:03:55,257 INFO L471 AbstractCegarLoop]: Abstraction has 341 states and 497 transitions. [2024-11-09 23:03:55,257 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, (20), 2 states have call predecessors, (20), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-09 23:03:55,258 INFO L276 IsEmpty]: Start isEmpty. Operand 341 states and 497 transitions. [2024-11-09 23:03:55,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2024-11-09 23:03:55,260 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:03:55,260 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 23:03:55,275 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-09 23:03:55,461 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 [2024-11-09 23:03:55,461 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:03:55,462 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:03:55,462 INFO L85 PathProgramCache]: Analyzing trace with hash 1612883103, now seen corresponding path program 1 times [2024-11-09 23:03:55,462 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:03:55,462 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [640209698] [2024-11-09 23:03:55,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:03:55,462 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:03:55,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:03:55,660 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-09 23:03:55,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:03:55,672 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-09 23:03:55,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:03:55,675 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-09 23:03:55,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:03:55,695 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-09 23:03:55,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:03:55,699 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-09 23:03:55,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:03:55,702 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-09 23:03:55,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:03:55,714 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-11-09 23:03:55,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:03:55,719 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-11-09 23:03:55,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:03:55,723 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-09 23:03:55,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:03:55,725 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-11-09 23:03:55,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:03:55,730 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-11-09 23:03:55,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:03:55,732 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-09 23:03:55,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:03:55,734 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-11-09 23:03:55,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:03:55,736 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-11-09 23:03:55,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:03:55,738 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-09 23:03:55,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:03:55,741 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2024-11-09 23:03:55,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:03:55,743 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-11-09 23:03:55,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:03:55,744 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2024-11-09 23:03:55,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:03:55,747 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2024-11-09 23:03:55,748 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:03:55,748 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [640209698] [2024-11-09 23:03:55,748 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [640209698] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 23:03:55,748 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1696303725] [2024-11-09 23:03:55,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:03:55,748 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 23:03:55,748 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 23:03:55,750 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) [2024-11-09 23:03:55,751 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-09 23:03:56,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:03:56,080 INFO L255 TraceCheckSpWp]: Trace formula consists of 1150 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-09 23:03:56,087 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 23:03:56,114 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2024-11-09 23:03:56,114 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 23:03:56,114 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1696303725] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:03:56,115 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 23:03:56,115 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [8] total 9 [2024-11-09 23:03:56,115 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1073640460] [2024-11-09 23:03:56,115 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:03:56,116 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 23:03:56,116 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:03:56,116 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 23:03:56,116 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-09 23:03:56,117 INFO L87 Difference]: Start difference. First operand 341 states and 497 transitions. Second operand has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-09 23:03:56,158 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:03:56,158 INFO L93 Difference]: Finished difference Result 716 states and 1054 transitions. [2024-11-09 23:03:56,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 23:03:56,160 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 149 [2024-11-09 23:03:56,160 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:03:56,163 INFO L225 Difference]: With dead ends: 716 [2024-11-09 23:03:56,165 INFO L226 Difference]: Without dead ends: 403 [2024-11-09 23:03:56,166 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 188 GetRequests, 181 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-09 23:03:56,168 INFO L432 NwaCegarLoop]: 509 mSDtfsCounter, 109 mSDsluCounter, 448 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 124 SdHoareTripleChecker+Valid, 957 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 [2024-11-09 23:03:56,169 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [124 Valid, 957 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 23:03:56,172 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 403 states. [2024-11-09 23:03:56,190 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 403 to 395. [2024-11-09 23:03:56,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 395 states, 309 states have (on average 1.4886731391585761) internal successors, (460), 312 states have internal predecessors, (460), 62 states have call successors, (62), 23 states have call predecessors, (62), 23 states have return successors, (61), 61 states have call predecessors, (61), 61 states have call successors, (61) [2024-11-09 23:03:56,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 395 states to 395 states and 583 transitions. [2024-11-09 23:03:56,193 INFO L78 Accepts]: Start accepts. Automaton has 395 states and 583 transitions. Word has length 149 [2024-11-09 23:03:56,194 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:03:56,194 INFO L471 AbstractCegarLoop]: Abstraction has 395 states and 583 transitions. [2024-11-09 23:03:56,194 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-09 23:03:56,194 INFO L276 IsEmpty]: Start isEmpty. Operand 395 states and 583 transitions. [2024-11-09 23:03:56,196 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2024-11-09 23:03:56,196 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:03:56,197 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 23:03:56,213 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-09 23:03:56,400 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 [2024-11-09 23:03:56,401 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:03:56,401 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:03:56,401 INFO L85 PathProgramCache]: Analyzing trace with hash -1784703345, now seen corresponding path program 1 times [2024-11-09 23:03:56,401 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:03:56,402 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [43909502] [2024-11-09 23:03:56,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:03:56,402 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:03:56,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:03:56,576 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-09 23:03:56,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:03:56,586 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-09 23:03:56,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:03:56,590 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-09 23:03:56,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:03:56,615 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-09 23:03:56,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:03:56,622 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-09 23:03:56,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:03:56,628 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-09 23:03:56,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:03:56,646 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-11-09 23:03:56,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:03:56,648 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-09 23:03:56,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:03:56,652 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-09 23:03:56,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:03:56,654 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-09 23:03:56,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:03:56,656 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-09 23:03:56,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:03:56,657 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-11-09 23:03:56,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:03:56,660 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-09 23:03:56,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:03:56,662 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-11-09 23:03:56,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:03:56,665 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-09 23:03:56,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:03:56,667 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2024-11-09 23:03:56,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:03:56,668 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2024-11-09 23:03:56,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:03:56,670 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2024-11-09 23:03:56,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:03:56,685 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2024-11-09 23:03:56,685 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:03:56,685 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [43909502] [2024-11-09 23:03:56,685 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [43909502] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 23:03:56,685 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2087340166] [2024-11-09 23:03:56,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:03:56,686 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 23:03:56,686 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 23:03:56,688 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) [2024-11-09 23:03:56,689 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-09 23:03:56,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:03:57,009 INFO L255 TraceCheckSpWp]: Trace formula consists of 1155 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-09 23:03:57,017 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 23:03:57,087 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2024-11-09 23:03:57,087 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 23:03:57,087 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2087340166] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:03:57,088 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 23:03:57,088 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8] total 11 [2024-11-09 23:03:57,088 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1590884488] [2024-11-09 23:03:57,088 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:03:57,089 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 23:03:57,089 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:03:57,090 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 23:03:57,090 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2024-11-09 23:03:57,090 INFO L87 Difference]: Start difference. First operand 395 states and 583 transitions. Second operand has 5 states, 4 states have (on average 23.5) internal successors, (94), 5 states have internal predecessors, (94), 3 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (18), 2 states have call predecessors, (18), 3 states have call successors, (18) [2024-11-09 23:03:57,158 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:03:57,158 INFO L93 Difference]: Finished difference Result 781 states and 1156 transitions. [2024-11-09 23:03:57,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 23:03:57,159 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 23.5) internal successors, (94), 5 states have internal predecessors, (94), 3 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (18), 2 states have call predecessors, (18), 3 states have call successors, (18) Word has length 150 [2024-11-09 23:03:57,160 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:03:57,163 INFO L225 Difference]: With dead ends: 781 [2024-11-09 23:03:57,163 INFO L226 Difference]: Without dead ends: 397 [2024-11-09 23:03:57,165 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 189 GetRequests, 180 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2024-11-09 23:03:57,166 INFO L432 NwaCegarLoop]: 486 mSDtfsCounter, 2 mSDsluCounter, 1447 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 1933 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 [2024-11-09 23:03:57,168 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 1933 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 23:03:57,169 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 397 states. [2024-11-09 23:03:57,188 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 397 to 397. [2024-11-09 23:03:57,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 397 states, 310 states have (on average 1.4870967741935484) internal successors, (461), 314 states have internal predecessors, (461), 62 states have call successors, (62), 23 states have call predecessors, (62), 24 states have return successors, (63), 61 states have call predecessors, (63), 61 states have call successors, (63) [2024-11-09 23:03:57,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 397 states to 397 states and 586 transitions. [2024-11-09 23:03:57,195 INFO L78 Accepts]: Start accepts. Automaton has 397 states and 586 transitions. Word has length 150 [2024-11-09 23:03:57,195 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:03:57,195 INFO L471 AbstractCegarLoop]: Abstraction has 397 states and 586 transitions. [2024-11-09 23:03:57,196 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 23.5) internal successors, (94), 5 states have internal predecessors, (94), 3 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (18), 2 states have call predecessors, (18), 3 states have call successors, (18) [2024-11-09 23:03:57,196 INFO L276 IsEmpty]: Start isEmpty. Operand 397 states and 586 transitions. [2024-11-09 23:03:57,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-11-09 23:03:57,200 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:03:57,200 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 23:03:57,221 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-09 23:03:57,404 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 [2024-11-09 23:03:57,405 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:03:57,405 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:03:57,405 INFO L85 PathProgramCache]: Analyzing trace with hash -1650014203, now seen corresponding path program 1 times [2024-11-09 23:03:57,405 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:03:57,405 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2052375313] [2024-11-09 23:03:57,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:03:57,406 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:03:57,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:03:57,589 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-09 23:03:57,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:03:57,604 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-09 23:03:57,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:03:57,607 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-09 23:03:57,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:03:57,631 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-09 23:03:57,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:03:57,662 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-11-09 23:03:57,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:03:57,666 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-11-09 23:03:57,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:03:57,682 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-11-09 23:03:57,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:03:57,684 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-11-09 23:03:57,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:03:57,687 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-09 23:03:57,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:03:57,690 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-09 23:03:57,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:03:57,693 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-11-09 23:03:57,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:03:57,696 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-11-09 23:03:57,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:03:57,699 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-11-09 23:03:57,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:03:57,701 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-11-09 23:03:57,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:03:57,705 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-09 23:03:57,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:03:57,707 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-11-09 23:03:57,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:03:57,709 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2024-11-09 23:03:57,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:03:57,711 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2024-11-09 23:03:57,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:03:57,714 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2024-11-09 23:03:57,714 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:03:57,714 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2052375313] [2024-11-09 23:03:57,714 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2052375313] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 23:03:57,715 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1563009902] [2024-11-09 23:03:57,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:03:57,715 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 23:03:57,715 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 23:03:57,717 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) [2024-11-09 23:03:57,718 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-09 23:03:58,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:03:58,063 INFO L255 TraceCheckSpWp]: Trace formula consists of 1156 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-09 23:03:58,066 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 23:03:58,128 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2024-11-09 23:03:58,129 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 23:03:58,129 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1563009902] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:03:58,129 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 23:03:58,129 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [11] total 14 [2024-11-09 23:03:58,129 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2020866495] [2024-11-09 23:03:58,130 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:03:58,130 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 23:03:58,130 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:03:58,131 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 23:03:58,131 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2024-11-09 23:03:58,131 INFO L87 Difference]: Start difference. First operand 397 states and 586 transitions. Second operand has 5 states, 5 states have (on average 19.2) internal successors, (96), 5 states have internal predecessors, (96), 3 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2024-11-09 23:03:58,204 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:03:58,204 INFO L93 Difference]: Finished difference Result 783 states and 1161 transitions. [2024-11-09 23:03:58,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 23:03:58,205 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.2) internal successors, (96), 5 states have internal predecessors, (96), 3 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) Word has length 151 [2024-11-09 23:03:58,206 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:03:58,208 INFO L225 Difference]: With dead ends: 783 [2024-11-09 23:03:58,208 INFO L226 Difference]: Without dead ends: 399 [2024-11-09 23:03:58,210 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 192 GetRequests, 180 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2024-11-09 23:03:58,210 INFO L432 NwaCegarLoop]: 484 mSDtfsCounter, 2 mSDsluCounter, 1435 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 1919 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 [2024-11-09 23:03:58,211 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 1919 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 23:03:58,212 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 399 states. [2024-11-09 23:03:58,222 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 399 to 399. [2024-11-09 23:03:58,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 399 states, 311 states have (on average 1.4855305466237942) internal successors, (462), 316 states have internal predecessors, (462), 62 states have call successors, (62), 23 states have call predecessors, (62), 25 states have return successors, (68), 61 states have call predecessors, (68), 61 states have call successors, (68) [2024-11-09 23:03:58,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 399 states to 399 states and 592 transitions. [2024-11-09 23:03:58,226 INFO L78 Accepts]: Start accepts. Automaton has 399 states and 592 transitions. Word has length 151 [2024-11-09 23:03:58,227 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:03:58,227 INFO L471 AbstractCegarLoop]: Abstraction has 399 states and 592 transitions. [2024-11-09 23:03:58,227 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.2) internal successors, (96), 5 states have internal predecessors, (96), 3 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2024-11-09 23:03:58,227 INFO L276 IsEmpty]: Start isEmpty. Operand 399 states and 592 transitions. [2024-11-09 23:03:58,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2024-11-09 23:03:58,230 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:03:58,230 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 23:03:58,249 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-11-09 23:03:58,430 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 [2024-11-09 23:03:58,431 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:03:58,431 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:03:58,431 INFO L85 PathProgramCache]: Analyzing trace with hash -65297537, now seen corresponding path program 1 times [2024-11-09 23:03:58,431 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:03:58,431 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2078315328] [2024-11-09 23:03:58,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:03:58,432 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:03:58,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:03:58,594 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-09 23:03:58,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:03:58,604 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-09 23:03:58,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:03:58,607 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-09 23:03:58,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:03:58,609 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-09 23:03:58,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:03:58,611 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-09 23:03:58,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:03:58,631 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-09 23:03:58,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:03:58,643 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-09 23:03:58,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:03:58,646 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-11-09 23:03:58,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:03:58,647 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-09 23:03:58,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:03:58,649 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-09 23:03:58,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:03:58,652 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-09 23:03:58,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:03:58,653 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-09 23:03:58,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:03:58,655 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-09 23:03:58,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:03:58,656 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-11-09 23:03:58,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:03:58,659 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-09 23:03:58,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:03:58,661 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2024-11-09 23:03:58,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:03:58,662 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2024-11-09 23:03:58,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:03:58,664 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2024-11-09 23:03:58,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:03:58,667 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2024-11-09 23:03:58,667 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:03:58,667 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2078315328] [2024-11-09 23:03:58,667 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2078315328] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:03:58,667 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:03:58,667 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-09 23:03:58,668 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1192666904] [2024-11-09 23:03:58,668 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:03:58,668 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-09 23:03:58,668 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:03:58,669 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-09 23:03:58,669 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-09 23:03:58,669 INFO L87 Difference]: Start difference. First operand 399 states and 592 transitions. Second operand has 8 states, 7 states have (on average 13.142857142857142) internal successors, (92), 5 states have internal predecessors, (92), 3 states have call successors, (20), 5 states have call predecessors, (20), 2 states have return successors, (18), 2 states have call predecessors, (18), 3 states have call successors, (18) [2024-11-09 23:04:00,162 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:04:00,162 INFO L93 Difference]: Finished difference Result 849 states and 1267 transitions. [2024-11-09 23:04:00,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-09 23:04:00,162 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 13.142857142857142) internal successors, (92), 5 states have internal predecessors, (92), 3 states have call successors, (20), 5 states have call predecessors, (20), 2 states have return successors, (18), 2 states have call predecessors, (18), 3 states have call successors, (18) Word has length 152 [2024-11-09 23:04:00,164 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:04:00,167 INFO L225 Difference]: With dead ends: 849 [2024-11-09 23:04:00,167 INFO L226 Difference]: Without dead ends: 473 [2024-11-09 23:04:00,169 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=49, Invalid=133, Unknown=0, NotChecked=0, Total=182 [2024-11-09 23:04:00,169 INFO L432 NwaCegarLoop]: 179 mSDtfsCounter, 868 mSDsluCounter, 817 mSDsCounter, 0 mSdLazyCounter, 1771 mSolverCounterSat, 274 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 869 SdHoareTripleChecker+Valid, 996 SdHoareTripleChecker+Invalid, 2045 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 274 IncrementalHoareTripleChecker+Valid, 1771 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-09 23:04:00,169 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [869 Valid, 996 Invalid, 2045 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [274 Valid, 1771 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-09 23:04:00,170 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 473 states. [2024-11-09 23:04:00,203 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 473 to 399. [2024-11-09 23:04:00,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 399 states, 311 states have (on average 1.4855305466237942) internal successors, (462), 316 states have internal predecessors, (462), 62 states have call successors, (62), 23 states have call predecessors, (62), 25 states have return successors, (67), 61 states have call predecessors, (67), 61 states have call successors, (67) [2024-11-09 23:04:00,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 399 states to 399 states and 591 transitions. [2024-11-09 23:04:00,206 INFO L78 Accepts]: Start accepts. Automaton has 399 states and 591 transitions. Word has length 152 [2024-11-09 23:04:00,207 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:04:00,207 INFO L471 AbstractCegarLoop]: Abstraction has 399 states and 591 transitions. [2024-11-09 23:04:00,207 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 13.142857142857142) internal successors, (92), 5 states have internal predecessors, (92), 3 states have call successors, (20), 5 states have call predecessors, (20), 2 states have return successors, (18), 2 states have call predecessors, (18), 3 states have call successors, (18) [2024-11-09 23:04:00,207 INFO L276 IsEmpty]: Start isEmpty. Operand 399 states and 591 transitions. [2024-11-09 23:04:00,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2024-11-09 23:04:00,211 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:04:00,211 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 23:04:00,211 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-09 23:04:00,212 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:04:00,212 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:04:00,212 INFO L85 PathProgramCache]: Analyzing trace with hash 268013843, now seen corresponding path program 2 times [2024-11-09 23:04:00,213 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:04:00,213 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1371529318] [2024-11-09 23:04:00,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:04:00,213 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:04:00,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:04:00,375 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-09 23:04:00,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:04:00,385 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-09 23:04:00,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:04:00,387 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-09 23:04:00,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:04:00,389 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-09 23:04:00,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:04:00,392 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-09 23:04:00,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:04:00,412 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-09 23:04:00,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:04:00,426 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-09 23:04:00,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:04:00,428 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-09 23:04:00,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:04:00,431 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-11-09 23:04:00,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:04:00,433 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-11-09 23:04:00,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:04:00,435 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-11-09 23:04:00,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:04:00,436 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-11-09 23:04:00,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:04:00,438 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-11-09 23:04:00,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:04:00,440 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-11-09 23:04:00,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:04:00,445 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-09 23:04:00,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:04:00,447 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2024-11-09 23:04:00,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:04:00,451 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2024-11-09 23:04:00,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:04:00,453 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2024-11-09 23:04:00,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:04:00,455 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2024-11-09 23:04:00,455 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:04:00,455 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1371529318] [2024-11-09 23:04:00,455 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1371529318] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:04:00,455 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:04:00,455 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-09 23:04:00,455 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [661592567] [2024-11-09 23:04:00,455 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:04:00,455 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-09 23:04:00,456 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:04:00,457 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-09 23:04:00,457 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-09 23:04:00,457 INFO L87 Difference]: Start difference. First operand 399 states and 591 transitions. Second operand has 8 states, 7 states have (on average 13.285714285714286) internal successors, (93), 5 states have internal predecessors, (93), 3 states have call successors, (20), 5 states have call predecessors, (20), 2 states have return successors, (18), 2 states have call predecessors, (18), 3 states have call successors, (18) [2024-11-09 23:04:01,966 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:04:01,966 INFO L93 Difference]: Finished difference Result 851 states and 1270 transitions. [2024-11-09 23:04:01,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-09 23:04:01,967 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 13.285714285714286) internal successors, (93), 5 states have internal predecessors, (93), 3 states have call successors, (20), 5 states have call predecessors, (20), 2 states have return successors, (18), 2 states have call predecessors, (18), 3 states have call successors, (18) Word has length 153 [2024-11-09 23:04:01,967 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:04:01,970 INFO L225 Difference]: With dead ends: 851 [2024-11-09 23:04:01,970 INFO L226 Difference]: Without dead ends: 475 [2024-11-09 23:04:01,971 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=49, Invalid=133, Unknown=0, NotChecked=0, Total=182 [2024-11-09 23:04:01,972 INFO L432 NwaCegarLoop]: 179 mSDtfsCounter, 831 mSDsluCounter, 817 mSDsCounter, 0 mSdLazyCounter, 1894 mSolverCounterSat, 249 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 832 SdHoareTripleChecker+Valid, 996 SdHoareTripleChecker+Invalid, 2143 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 249 IncrementalHoareTripleChecker+Valid, 1894 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-09 23:04:01,972 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [832 Valid, 996 Invalid, 2143 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [249 Valid, 1894 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-09 23:04:01,973 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 475 states. [2024-11-09 23:04:02,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 475 to 401. [2024-11-09 23:04:02,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 401 states, 312 states have (on average 1.483974358974359) internal successors, (463), 318 states have internal predecessors, (463), 62 states have call successors, (62), 23 states have call predecessors, (62), 26 states have return successors, (69), 61 states have call predecessors, (69), 61 states have call successors, (69) [2024-11-09 23:04:02,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 401 states to 401 states and 594 transitions. [2024-11-09 23:04:02,027 INFO L78 Accepts]: Start accepts. Automaton has 401 states and 594 transitions. Word has length 153 [2024-11-09 23:04:02,028 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:04:02,028 INFO L471 AbstractCegarLoop]: Abstraction has 401 states and 594 transitions. [2024-11-09 23:04:02,028 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 13.285714285714286) internal successors, (93), 5 states have internal predecessors, (93), 3 states have call successors, (20), 5 states have call predecessors, (20), 2 states have return successors, (18), 2 states have call predecessors, (18), 3 states have call successors, (18) [2024-11-09 23:04:02,028 INFO L276 IsEmpty]: Start isEmpty. Operand 401 states and 594 transitions. [2024-11-09 23:04:02,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2024-11-09 23:04:02,031 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:04:02,031 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 23:04:02,031 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-09 23:04:02,032 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:04:02,032 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:04:02,032 INFO L85 PathProgramCache]: Analyzing trace with hash 224182812, now seen corresponding path program 1 times [2024-11-09 23:04:02,032 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:04:02,033 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [211308166] [2024-11-09 23:04:02,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:04:02,033 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:04:02,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:04:02,183 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-09 23:04:02,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:04:02,196 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-09 23:04:02,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:04:02,200 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-09 23:04:02,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:04:02,203 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-09 23:04:02,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:04:02,206 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-09 23:04:02,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:04:02,239 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-09 23:04:02,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:04:02,270 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-09 23:04:02,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:04:02,272 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-09 23:04:02,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:04:02,274 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-11-09 23:04:02,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:04:02,275 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-11-09 23:04:02,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:04:02,277 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2024-11-09 23:04:02,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:04:02,279 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-11-09 23:04:02,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:04:02,280 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-11-09 23:04:02,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:04:02,281 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-11-09 23:04:02,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:04:02,284 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-09 23:04:02,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:04:02,285 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2024-11-09 23:04:02,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:04:02,287 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2024-11-09 23:04:02,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:04:02,288 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2024-11-09 23:04:02,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:04:02,290 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2024-11-09 23:04:02,291 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:04:02,291 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [211308166] [2024-11-09 23:04:02,291 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [211308166] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:04:02,291 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:04:02,291 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-09 23:04:02,291 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1885009427] [2024-11-09 23:04:02,291 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:04:02,291 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-09 23:04:02,291 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:04:02,292 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-09 23:04:02,292 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2024-11-09 23:04:02,292 INFO L87 Difference]: Start difference. First operand 401 states and 594 transitions. Second operand has 11 states, 10 states have (on average 9.7) internal successors, (97), 8 states have internal predecessors, (97), 4 states have call successors, (20), 5 states have call predecessors, (20), 3 states have return successors, (18), 3 states have call predecessors, (18), 4 states have call successors, (18) [2024-11-09 23:04:04,250 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:04:04,250 INFO L93 Difference]: Finished difference Result 849 states and 1265 transitions. [2024-11-09 23:04:04,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-09 23:04:04,251 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 9.7) internal successors, (97), 8 states have internal predecessors, (97), 4 states have call successors, (20), 5 states have call predecessors, (20), 3 states have return successors, (18), 3 states have call predecessors, (18), 4 states have call successors, (18) Word has length 154 [2024-11-09 23:04:04,251 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:04:04,254 INFO L225 Difference]: With dead ends: 849 [2024-11-09 23:04:04,254 INFO L226 Difference]: Without dead ends: 475 [2024-11-09 23:04:04,255 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=75, Invalid=305, Unknown=0, NotChecked=0, Total=380 [2024-11-09 23:04:04,256 INFO L432 NwaCegarLoop]: 177 mSDtfsCounter, 854 mSDsluCounter, 1252 mSDsCounter, 0 mSdLazyCounter, 3109 mSolverCounterSat, 264 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 855 SdHoareTripleChecker+Valid, 1429 SdHoareTripleChecker+Invalid, 3373 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 264 IncrementalHoareTripleChecker+Valid, 3109 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-11-09 23:04:04,256 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [855 Valid, 1429 Invalid, 3373 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [264 Valid, 3109 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-11-09 23:04:04,257 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 475 states. [2024-11-09 23:04:04,300 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 475 to 401. [2024-11-09 23:04:04,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 401 states, 312 states have (on average 1.483974358974359) internal successors, (463), 318 states have internal predecessors, (463), 62 states have call successors, (62), 23 states have call predecessors, (62), 26 states have return successors, (68), 61 states have call predecessors, (68), 61 states have call successors, (68) [2024-11-09 23:04:04,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 401 states to 401 states and 593 transitions. [2024-11-09 23:04:04,303 INFO L78 Accepts]: Start accepts. Automaton has 401 states and 593 transitions. Word has length 154 [2024-11-09 23:04:04,303 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:04:04,303 INFO L471 AbstractCegarLoop]: Abstraction has 401 states and 593 transitions. [2024-11-09 23:04:04,304 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 9.7) internal successors, (97), 8 states have internal predecessors, (97), 4 states have call successors, (20), 5 states have call predecessors, (20), 3 states have return successors, (18), 3 states have call predecessors, (18), 4 states have call successors, (18) [2024-11-09 23:04:04,304 INFO L276 IsEmpty]: Start isEmpty. Operand 401 states and 593 transitions. [2024-11-09 23:04:04,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2024-11-09 23:04:04,306 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:04:04,306 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 23:04:04,306 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-09 23:04:04,307 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:04:04,307 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:04:04,307 INFO L85 PathProgramCache]: Analyzing trace with hash 736290178, now seen corresponding path program 2 times [2024-11-09 23:04:04,307 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:04:04,307 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [163017490] [2024-11-09 23:04:04,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:04:04,308 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:04:04,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:04:04,427 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-09 23:04:04,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:04:04,438 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-09 23:04:04,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:04:04,441 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-09 23:04:04,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:04:04,443 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-09 23:04:04,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:04:04,445 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-09 23:04:04,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:04:04,471 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-09 23:04:04,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:04:04,505 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-11-09 23:04:04,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:04:04,507 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-11-09 23:04:04,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:04:04,509 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-11-09 23:04:04,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:04:04,510 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-09 23:04:04,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:04:04,512 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-09 23:04:04,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:04:04,513 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-11-09 23:04:04,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:04:04,515 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-11-09 23:04:04,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:04:04,517 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2024-11-09 23:04:04,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:04:04,519 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-09 23:04:04,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:04:04,520 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-11-09 23:04:04,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:04:04,522 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2024-11-09 23:04:04,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:04:04,523 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2024-11-09 23:04:04,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:04:04,525 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2024-11-09 23:04:04,525 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:04:04,525 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [163017490] [2024-11-09 23:04:04,525 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [163017490] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:04:04,526 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:04:04,526 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-09 23:04:04,526 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1389874038] [2024-11-09 23:04:04,526 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:04:04,526 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-09 23:04:04,527 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:04:04,527 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-09 23:04:04,527 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2024-11-09 23:04:04,528 INFO L87 Difference]: Start difference. First operand 401 states and 593 transitions. Second operand has 11 states, 10 states have (on average 9.8) internal successors, (98), 8 states have internal predecessors, (98), 4 states have call successors, (20), 5 states have call predecessors, (20), 3 states have return successors, (18), 3 states have call predecessors, (18), 4 states have call successors, (18) [2024-11-09 23:04:06,365 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:04:06,365 INFO L93 Difference]: Finished difference Result 851 states and 1271 transitions. [2024-11-09 23:04:06,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-09 23:04:06,366 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 9.8) internal successors, (98), 8 states have internal predecessors, (98), 4 states have call successors, (20), 5 states have call predecessors, (20), 3 states have return successors, (18), 3 states have call predecessors, (18), 4 states have call successors, (18) Word has length 155 [2024-11-09 23:04:06,366 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:04:06,369 INFO L225 Difference]: With dead ends: 851 [2024-11-09 23:04:06,369 INFO L226 Difference]: Without dead ends: 477 [2024-11-09 23:04:06,370 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=75, Invalid=305, Unknown=0, NotChecked=0, Total=380 [2024-11-09 23:04:06,372 INFO L432 NwaCegarLoop]: 178 mSDtfsCounter, 843 mSDsluCounter, 1252 mSDsCounter, 0 mSdLazyCounter, 3143 mSolverCounterSat, 270 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 844 SdHoareTripleChecker+Valid, 1430 SdHoareTripleChecker+Invalid, 3413 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 270 IncrementalHoareTripleChecker+Valid, 3143 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-09 23:04:06,373 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [844 Valid, 1430 Invalid, 3413 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [270 Valid, 3143 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-09 23:04:06,374 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 477 states. [2024-11-09 23:04:06,398 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 477 to 403. [2024-11-09 23:04:06,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 403 states, 313 states have (on average 1.4824281150159744) internal successors, (464), 320 states have internal predecessors, (464), 62 states have call successors, (62), 23 states have call predecessors, (62), 27 states have return successors, (73), 61 states have call predecessors, (73), 61 states have call successors, (73) [2024-11-09 23:04:06,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 403 states to 403 states and 599 transitions. [2024-11-09 23:04:06,401 INFO L78 Accepts]: Start accepts. Automaton has 403 states and 599 transitions. Word has length 155 [2024-11-09 23:04:06,402 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:04:06,402 INFO L471 AbstractCegarLoop]: Abstraction has 403 states and 599 transitions. [2024-11-09 23:04:06,403 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 9.8) internal successors, (98), 8 states have internal predecessors, (98), 4 states have call successors, (20), 5 states have call predecessors, (20), 3 states have return successors, (18), 3 states have call predecessors, (18), 4 states have call successors, (18) [2024-11-09 23:04:06,403 INFO L276 IsEmpty]: Start isEmpty. Operand 403 states and 599 transitions. [2024-11-09 23:04:06,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2024-11-09 23:04:06,405 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:04:06,406 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 23:04:06,406 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-09 23:04:06,406 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:04:06,406 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:04:06,406 INFO L85 PathProgramCache]: Analyzing trace with hash -2059717447, now seen corresponding path program 1 times [2024-11-09 23:04:06,406 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:04:06,407 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2134996098] [2024-11-09 23:04:06,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:04:06,407 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:04:06,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:04:06,535 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-09 23:04:06,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:04:06,545 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-09 23:04:06,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:04:06,548 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-09 23:04:06,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:04:06,549 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-09 23:04:06,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:04:06,551 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-09 23:04:06,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:04:06,553 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-09 23:04:06,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:04:06,561 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-11-09 23:04:06,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:04:06,563 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-11-09 23:04:06,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:04:06,564 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-09 23:04:06,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:04:06,566 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-09 23:04:06,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:04:06,568 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-11-09 23:04:06,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:04:06,569 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-09 23:04:06,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:04:06,570 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-11-09 23:04:06,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:04:06,572 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-11-09 23:04:06,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:04:06,574 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-09 23:04:06,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:04:06,575 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-11-09 23:04:06,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:04:06,577 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2024-11-09 23:04:06,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:04:06,578 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2024-11-09 23:04:06,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:04:06,581 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2024-11-09 23:04:06,581 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:04:06,581 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2134996098] [2024-11-09 23:04:06,582 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2134996098] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 23:04:06,582 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1424698350] [2024-11-09 23:04:06,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:04:06,582 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 23:04:06,582 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 23:04:06,584 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) [2024-11-09 23:04:06,586 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-09 23:04:06,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:04:06,890 INFO L255 TraceCheckSpWp]: Trace formula consists of 1161 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-09 23:04:06,893 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 23:04:06,927 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2024-11-09 23:04:06,927 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 23:04:07,045 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2024-11-09 23:04:07,045 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1424698350] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 23:04:07,045 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 23:04:07,046 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 4, 4] total 10 [2024-11-09 23:04:07,046 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [569251406] [2024-11-09 23:04:07,046 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 23:04:07,046 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-09 23:04:07,046 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:04:07,047 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-09 23:04:07,047 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2024-11-09 23:04:07,047 INFO L87 Difference]: Start difference. First operand 403 states and 599 transitions. Second operand has 10 states, 10 states have (on average 14.0) internal successors, (140), 7 states have internal predecessors, (140), 2 states have call successors, (40), 5 states have call predecessors, (40), 2 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2024-11-09 23:04:08,565 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:04:08,565 INFO L93 Difference]: Finished difference Result 1035 states and 1599 transitions. [2024-11-09 23:04:08,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-09 23:04:08,566 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 14.0) internal successors, (140), 7 states have internal predecessors, (140), 2 states have call successors, (40), 5 states have call predecessors, (40), 2 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) Word has length 156 [2024-11-09 23:04:08,566 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:04:08,571 INFO L225 Difference]: With dead ends: 1035 [2024-11-09 23:04:08,571 INFO L226 Difference]: Without dead ends: 855 [2024-11-09 23:04:08,572 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 357 GetRequests, 345 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=135, Unknown=0, NotChecked=0, Total=182 [2024-11-09 23:04:08,573 INFO L432 NwaCegarLoop]: 217 mSDtfsCounter, 1241 mSDsluCounter, 998 mSDsCounter, 0 mSdLazyCounter, 2000 mSolverCounterSat, 362 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1286 SdHoareTripleChecker+Valid, 1215 SdHoareTripleChecker+Invalid, 2362 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 362 IncrementalHoareTripleChecker+Valid, 2000 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-09 23:04:08,573 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1286 Valid, 1215 Invalid, 2362 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [362 Valid, 2000 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-09 23:04:08,574 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 855 states. [2024-11-09 23:04:08,605 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 855 to 757. [2024-11-09 23:04:08,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 757 states, 603 states have (on average 1.5140961857379769) internal successors, (913), 610 states have internal predecessors, (913), 126 states have call successors, (126), 23 states have call predecessors, (126), 27 states have return successors, (147), 125 states have call predecessors, (147), 125 states have call successors, (147) [2024-11-09 23:04:08,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 757 states to 757 states and 1186 transitions. [2024-11-09 23:04:08,611 INFO L78 Accepts]: Start accepts. Automaton has 757 states and 1186 transitions. Word has length 156 [2024-11-09 23:04:08,611 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:04:08,611 INFO L471 AbstractCegarLoop]: Abstraction has 757 states and 1186 transitions. [2024-11-09 23:04:08,612 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 14.0) internal successors, (140), 7 states have internal predecessors, (140), 2 states have call successors, (40), 5 states have call predecessors, (40), 2 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2024-11-09 23:04:08,612 INFO L276 IsEmpty]: Start isEmpty. Operand 757 states and 1186 transitions. [2024-11-09 23:04:08,615 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2024-11-09 23:04:08,616 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:04:08,616 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 23:04:08,635 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-09 23:04:08,816 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 [2024-11-09 23:04:08,817 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:04:08,817 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:04:08,818 INFO L85 PathProgramCache]: Analyzing trace with hash -710040186, now seen corresponding path program 1 times [2024-11-09 23:04:08,818 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:04:08,818 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [695255510] [2024-11-09 23:04:08,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:04:08,818 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:04:08,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:04:08,897 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-09 23:04:08,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:04:08,907 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-09 23:04:08,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:04:08,910 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-09 23:04:08,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:04:08,912 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-09 23:04:08,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:04:08,914 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-09 23:04:08,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:04:08,917 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-09 23:04:08,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:04:08,926 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-09 23:04:08,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:04:08,931 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-09 23:04:08,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:04:08,935 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-11-09 23:04:08,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:04:08,936 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-11-09 23:04:08,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:04:08,938 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-11-09 23:04:08,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:04:08,939 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-11-09 23:04:08,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:04:08,944 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2024-11-09 23:04:08,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:04:08,945 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-11-09 23:04:08,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:04:08,947 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-09 23:04:08,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:04:08,949 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2024-11-09 23:04:08,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:04:08,950 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2024-11-09 23:04:08,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:04:08,951 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2024-11-09 23:04:08,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:04:08,953 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2024-11-09 23:04:08,953 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:04:08,953 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [695255510] [2024-11-09 23:04:08,954 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [695255510] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:04:08,954 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:04:08,954 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-09 23:04:08,954 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [80738671] [2024-11-09 23:04:08,954 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:04:08,955 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 23:04:08,955 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:04:08,956 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 23:04:08,956 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-09 23:04:08,956 INFO L87 Difference]: Start difference. First operand 757 states and 1186 transitions. Second operand has 6 states, 6 states have (on average 18.166666666666668) internal successors, (109), 3 states have internal predecessors, (109), 2 states have call successors, (20), 5 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-09 23:04:09,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:04:09,944 INFO L93 Difference]: Finished difference Result 1878 states and 3000 transitions. [2024-11-09 23:04:09,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-09 23:04:09,945 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 18.166666666666668) internal successors, (109), 3 states have internal predecessors, (109), 2 states have call successors, (20), 5 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 170 [2024-11-09 23:04:09,945 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:04:09,952 INFO L225 Difference]: With dead ends: 1878 [2024-11-09 23:04:09,952 INFO L226 Difference]: Without dead ends: 1191 [2024-11-09 23:04:09,954 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2024-11-09 23:04:09,955 INFO L432 NwaCegarLoop]: 200 mSDtfsCounter, 940 mSDsluCounter, 550 mSDsCounter, 0 mSdLazyCounter, 1035 mSolverCounterSat, 295 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 955 SdHoareTripleChecker+Valid, 750 SdHoareTripleChecker+Invalid, 1330 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 295 IncrementalHoareTripleChecker+Valid, 1035 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-09 23:04:09,955 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [955 Valid, 750 Invalid, 1330 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [295 Valid, 1035 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-09 23:04:09,957 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1191 states. [2024-11-09 23:04:09,998 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1191 to 1109. [2024-11-09 23:04:09,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1109 states, 891 states have (on average 1.5151515151515151) internal successors, (1350), 898 states have internal predecessors, (1350), 190 states have call successors, (190), 23 states have call predecessors, (190), 27 states have return successors, (221), 189 states have call predecessors, (221), 189 states have call successors, (221) [2024-11-09 23:04:10,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1109 states to 1109 states and 1761 transitions. [2024-11-09 23:04:10,005 INFO L78 Accepts]: Start accepts. Automaton has 1109 states and 1761 transitions. Word has length 170 [2024-11-09 23:04:10,006 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:04:10,006 INFO L471 AbstractCegarLoop]: Abstraction has 1109 states and 1761 transitions. [2024-11-09 23:04:10,006 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 18.166666666666668) internal successors, (109), 3 states have internal predecessors, (109), 2 states have call successors, (20), 5 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-09 23:04:10,006 INFO L276 IsEmpty]: Start isEmpty. Operand 1109 states and 1761 transitions. [2024-11-09 23:04:10,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2024-11-09 23:04:10,013 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:04:10,013 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 23:04:10,013 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-09 23:04:10,013 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:04:10,014 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:04:10,014 INFO L85 PathProgramCache]: Analyzing trace with hash 1313436194, now seen corresponding path program 1 times [2024-11-09 23:04:10,014 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:04:10,014 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [214043668] [2024-11-09 23:04:10,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:04:10,014 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:04:10,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:04:10,107 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-09 23:04:10,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:04:10,117 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-09 23:04:10,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:04:10,120 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-09 23:04:10,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:04:10,122 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-09 23:04:10,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:04:10,124 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-09 23:04:10,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:04:10,127 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-09 23:04:10,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:04:10,138 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-09 23:04:10,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:04:10,140 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-09 23:04:10,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:04:10,142 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2024-11-09 23:04:10,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:04:10,144 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-11-09 23:04:10,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:04:10,146 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-11-09 23:04:10,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:04:10,147 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-11-09 23:04:10,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:04:10,148 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2024-11-09 23:04:10,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:04:10,150 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2024-11-09 23:04:10,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:04:10,152 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-09 23:04:10,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:04:10,155 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2024-11-09 23:04:10,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:04:10,156 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2024-11-09 23:04:10,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:04:10,158 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2024-11-09 23:04:10,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:04:10,160 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2024-11-09 23:04:10,160 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:04:10,160 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [214043668] [2024-11-09 23:04:10,160 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [214043668] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:04:10,160 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:04:10,160 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-09 23:04:10,160 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [631700205] [2024-11-09 23:04:10,161 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:04:10,161 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 23:04:10,161 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:04:10,162 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 23:04:10,162 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-09 23:04:10,162 INFO L87 Difference]: Start difference. First operand 1109 states and 1761 transitions. Second operand has 6 states, 6 states have (on average 18.333333333333332) internal successors, (110), 3 states have internal predecessors, (110), 2 states have call successors, (20), 5 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-09 23:04:11,047 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:04:11,047 INFO L93 Difference]: Finished difference Result 2723 states and 4375 transitions. [2024-11-09 23:04:11,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-09 23:04:11,048 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 18.333333333333332) internal successors, (110), 3 states have internal predecessors, (110), 2 states have call successors, (20), 5 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 171 [2024-11-09 23:04:11,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:04:11,058 INFO L225 Difference]: With dead ends: 2723 [2024-11-09 23:04:11,059 INFO L226 Difference]: Without dead ends: 1743 [2024-11-09 23:04:11,063 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2024-11-09 23:04:11,064 INFO L432 NwaCegarLoop]: 187 mSDtfsCounter, 921 mSDsluCounter, 534 mSDsCounter, 0 mSdLazyCounter, 1036 mSolverCounterSat, 297 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 936 SdHoareTripleChecker+Valid, 721 SdHoareTripleChecker+Invalid, 1333 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 297 IncrementalHoareTripleChecker+Valid, 1036 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-09 23:04:11,064 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [936 Valid, 721 Invalid, 1333 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [297 Valid, 1036 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-09 23:04:11,067 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1743 states. [2024-11-09 23:04:11,152 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1743 to 1661. [2024-11-09 23:04:11,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1661 states, 1348 states have (on average 1.5140949554896141) internal successors, (2041), 1355 states have internal predecessors, (2041), 285 states have call successors, (285), 23 states have call predecessors, (285), 27 states have return successors, (316), 284 states have call predecessors, (316), 284 states have call successors, (316) [2024-11-09 23:04:11,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1661 states to 1661 states and 2642 transitions. [2024-11-09 23:04:11,163 INFO L78 Accepts]: Start accepts. Automaton has 1661 states and 2642 transitions. Word has length 171 [2024-11-09 23:04:11,163 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:04:11,163 INFO L471 AbstractCegarLoop]: Abstraction has 1661 states and 2642 transitions. [2024-11-09 23:04:11,163 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 18.333333333333332) internal successors, (110), 3 states have internal predecessors, (110), 2 states have call successors, (20), 5 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-09 23:04:11,163 INFO L276 IsEmpty]: Start isEmpty. Operand 1661 states and 2642 transitions. [2024-11-09 23:04:11,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2024-11-09 23:04:11,172 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:04:11,172 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 23:04:11,173 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-09 23:04:11,173 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:04:11,173 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:04:11,173 INFO L85 PathProgramCache]: Analyzing trace with hash 1171206662, now seen corresponding path program 1 times [2024-11-09 23:04:11,173 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:04:11,173 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1700369354] [2024-11-09 23:04:11,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:04:11,174 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:04:11,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:04:11,287 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-09 23:04:11,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:04:11,298 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-09 23:04:11,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:04:11,301 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-09 23:04:11,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:04:11,304 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-09 23:04:11,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:04:11,306 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-09 23:04:11,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:04:11,308 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-09 23:04:11,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:04:11,317 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-11-09 23:04:11,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:04:11,319 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-11-09 23:04:11,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:04:11,321 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-09 23:04:11,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:04:11,323 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-11-09 23:04:11,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:04:11,324 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-11-09 23:04:11,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:04:11,326 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2024-11-09 23:04:11,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:04:11,327 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2024-11-09 23:04:11,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:04:11,329 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2024-11-09 23:04:11,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:04:11,331 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-09 23:04:11,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:04:11,333 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2024-11-09 23:04:11,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:04:11,334 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2024-11-09 23:04:11,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:04:11,336 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2024-11-09 23:04:11,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:04:11,337 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2024-11-09 23:04:11,338 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:04:11,338 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1700369354] [2024-11-09 23:04:11,338 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1700369354] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:04:11,338 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:04:11,338 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-09 23:04:11,338 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [549085901] [2024-11-09 23:04:11,338 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:04:11,339 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 23:04:11,339 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:04:11,340 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 23:04:11,340 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-09 23:04:11,340 INFO L87 Difference]: Start difference. First operand 1661 states and 2642 transitions. Second operand has 6 states, 6 states have (on average 18.5) internal successors, (111), 3 states have internal predecessors, (111), 2 states have call successors, (20), 5 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-09 23:04:12,263 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:04:12,264 INFO L93 Difference]: Finished difference Result 3977 states and 6423 transitions. [2024-11-09 23:04:12,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-09 23:04:12,267 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 18.5) internal successors, (111), 3 states have internal predecessors, (111), 2 states have call successors, (20), 5 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 172 [2024-11-09 23:04:12,267 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:04:12,282 INFO L225 Difference]: With dead ends: 3977 [2024-11-09 23:04:12,283 INFO L226 Difference]: Without dead ends: 2584 [2024-11-09 23:04:12,288 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2024-11-09 23:04:12,289 INFO L432 NwaCegarLoop]: 179 mSDtfsCounter, 930 mSDsluCounter, 517 mSDsCounter, 0 mSdLazyCounter, 1008 mSolverCounterSat, 301 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 945 SdHoareTripleChecker+Valid, 696 SdHoareTripleChecker+Invalid, 1309 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 301 IncrementalHoareTripleChecker+Valid, 1008 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-09 23:04:12,290 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [945 Valid, 696 Invalid, 1309 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [301 Valid, 1008 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-09 23:04:12,293 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2584 states. [2024-11-09 23:04:12,382 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2584 to 2502. [2024-11-09 23:04:12,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2502 states, 2066 states have (on average 1.5125847047434657) internal successors, (3125), 2073 states have internal predecessors, (3125), 408 states have call successors, (408), 23 states have call predecessors, (408), 27 states have return successors, (455), 407 states have call predecessors, (455), 407 states have call successors, (455) [2024-11-09 23:04:12,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2502 states to 2502 states and 3988 transitions. [2024-11-09 23:04:12,394 INFO L78 Accepts]: Start accepts. Automaton has 2502 states and 3988 transitions. Word has length 172 [2024-11-09 23:04:12,394 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:04:12,395 INFO L471 AbstractCegarLoop]: Abstraction has 2502 states and 3988 transitions. [2024-11-09 23:04:12,395 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 18.5) internal successors, (111), 3 states have internal predecessors, (111), 2 states have call successors, (20), 5 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-09 23:04:12,395 INFO L276 IsEmpty]: Start isEmpty. Operand 2502 states and 3988 transitions. [2024-11-09 23:04:12,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2024-11-09 23:04:12,407 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:04:12,407 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 23:04:12,408 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-09 23:04:12,408 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:04:12,408 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:04:12,408 INFO L85 PathProgramCache]: Analyzing trace with hash -628307966, now seen corresponding path program 1 times [2024-11-09 23:04:12,408 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:04:12,408 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [140401283] [2024-11-09 23:04:12,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:04:12,409 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:04:12,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:04:12,492 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-09 23:04:12,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:04:12,502 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-09 23:04:12,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:04:12,506 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-09 23:04:12,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:04:12,509 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-09 23:04:12,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:04:12,511 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-09 23:04:12,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:04:12,514 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-09 23:04:12,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:04:12,522 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-11-09 23:04:12,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:04:12,524 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-11-09 23:04:12,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:04:12,526 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-11-09 23:04:12,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:04:12,528 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-09 23:04:12,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:04:12,531 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-11-09 23:04:12,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:04:12,532 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-11-09 23:04:12,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:04:12,533 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-11-09 23:04:12,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:04:12,534 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2024-11-09 23:04:12,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:04:12,536 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-09 23:04:12,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:04:12,538 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2024-11-09 23:04:12,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:04:12,539 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2024-11-09 23:04:12,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:04:12,540 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2024-11-09 23:04:12,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:04:12,542 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2024-11-09 23:04:12,542 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:04:12,542 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [140401283] [2024-11-09 23:04:12,542 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [140401283] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:04:12,542 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:04:12,543 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-09 23:04:12,543 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1672019222] [2024-11-09 23:04:12,543 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:04:12,543 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 23:04:12,543 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:04:12,544 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 23:04:12,544 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-09 23:04:12,545 INFO L87 Difference]: Start difference. First operand 2502 states and 3988 transitions. Second operand has 6 states, 6 states have (on average 18.666666666666668) internal successors, (112), 3 states have internal predecessors, (112), 2 states have call successors, (20), 5 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-09 23:04:13,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:04:13,535 INFO L93 Difference]: Finished difference Result 5938 states and 9619 transitions. [2024-11-09 23:04:13,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-09 23:04:13,536 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 18.666666666666668) internal successors, (112), 3 states have internal predecessors, (112), 2 states have call successors, (20), 5 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 173 [2024-11-09 23:04:13,536 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:04:13,558 INFO L225 Difference]: With dead ends: 5938 [2024-11-09 23:04:13,558 INFO L226 Difference]: Without dead ends: 3934 [2024-11-09 23:04:13,567 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2024-11-09 23:04:13,567 INFO L432 NwaCegarLoop]: 179 mSDtfsCounter, 931 mSDsluCounter, 517 mSDsCounter, 0 mSdLazyCounter, 1005 mSolverCounterSat, 301 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 946 SdHoareTripleChecker+Valid, 696 SdHoareTripleChecker+Invalid, 1306 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 301 IncrementalHoareTripleChecker+Valid, 1005 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-09 23:04:13,567 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [946 Valid, 696 Invalid, 1306 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [301 Valid, 1005 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-09 23:04:13,571 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3934 states. [2024-11-09 23:04:13,717 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3934 to 3852. [2024-11-09 23:04:13,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3852 states, 3237 states have (on average 1.509731232622799) internal successors, (4887), 3244 states have internal predecessors, (4887), 587 states have call successors, (587), 23 states have call predecessors, (587), 27 states have return successors, (660), 586 states have call predecessors, (660), 586 states have call successors, (660) [2024-11-09 23:04:13,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3852 states to 3852 states and 6134 transitions. [2024-11-09 23:04:13,735 INFO L78 Accepts]: Start accepts. Automaton has 3852 states and 6134 transitions. Word has length 173 [2024-11-09 23:04:13,735 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:04:13,735 INFO L471 AbstractCegarLoop]: Abstraction has 3852 states and 6134 transitions. [2024-11-09 23:04:13,735 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 18.666666666666668) internal successors, (112), 3 states have internal predecessors, (112), 2 states have call successors, (20), 5 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-09 23:04:13,736 INFO L276 IsEmpty]: Start isEmpty. Operand 3852 states and 6134 transitions. [2024-11-09 23:04:13,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2024-11-09 23:04:13,755 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:04:13,755 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 23:04:13,755 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-09 23:04:13,755 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:04:13,756 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:04:13,756 INFO L85 PathProgramCache]: Analyzing trace with hash 1002341094, now seen corresponding path program 1 times [2024-11-09 23:04:13,756 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:04:13,756 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [568859498] [2024-11-09 23:04:13,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:04:13,756 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:04:13,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:04:13,831 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-09 23:04:13,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:04:13,840 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-09 23:04:13,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:04:13,842 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-09 23:04:13,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:04:13,844 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-09 23:04:13,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:04:13,846 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-09 23:04:13,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:04:13,849 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-09 23:04:13,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:04:13,857 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-11-09 23:04:13,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:04:13,859 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-11-09 23:04:13,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:04:13,861 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-11-09 23:04:13,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:04:13,862 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-11-09 23:04:13,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:04:13,864 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-11-09 23:04:13,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:04:13,865 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-11-09 23:04:13,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:04:13,866 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2024-11-09 23:04:13,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:04:13,867 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2024-11-09 23:04:13,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:04:13,869 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-09 23:04:13,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:04:13,870 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2024-11-09 23:04:13,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:04:13,872 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2024-11-09 23:04:13,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:04:13,873 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2024-11-09 23:04:13,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:04:13,874 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2024-11-09 23:04:13,875 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:04:13,875 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [568859498] [2024-11-09 23:04:13,875 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [568859498] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:04:13,875 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:04:13,875 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-09 23:04:13,875 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1303672755] [2024-11-09 23:04:13,875 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:04:13,876 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 23:04:13,876 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:04:13,876 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 23:04:13,876 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-09 23:04:13,876 INFO L87 Difference]: Start difference. First operand 3852 states and 6134 transitions. Second operand has 6 states, 6 states have (on average 18.833333333333332) internal successors, (113), 3 states have internal predecessors, (113), 2 states have call successors, (20), 5 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-09 23:04:14,916 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:04:14,917 INFO L93 Difference]: Finished difference Result 9451 states and 15313 transitions. [2024-11-09 23:04:14,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-09 23:04:14,918 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 18.833333333333332) internal successors, (113), 3 states have internal predecessors, (113), 2 states have call successors, (20), 5 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 174 [2024-11-09 23:04:14,918 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:04:14,952 INFO L225 Difference]: With dead ends: 9451 [2024-11-09 23:04:14,952 INFO L226 Difference]: Without dead ends: 6371 [2024-11-09 23:04:14,965 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2024-11-09 23:04:14,966 INFO L432 NwaCegarLoop]: 203 mSDtfsCounter, 902 mSDsluCounter, 558 mSDsCounter, 0 mSdLazyCounter, 1069 mSolverCounterSat, 297 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 917 SdHoareTripleChecker+Valid, 761 SdHoareTripleChecker+Invalid, 1366 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 297 IncrementalHoareTripleChecker+Valid, 1069 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-09 23:04:14,966 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [917 Valid, 761 Invalid, 1366 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [297 Valid, 1069 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-09 23:04:14,973 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6371 states. [2024-11-09 23:04:15,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6371 to 6289. [2024-11-09 23:04:15,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6289 states, 5298 states have (on average 1.4996224990562477) internal successors, (7945), 5305 states have internal predecessors, (7945), 963 states have call successors, (963), 23 states have call predecessors, (963), 27 states have return successors, (1080), 962 states have call predecessors, (1080), 962 states have call successors, (1080) [2024-11-09 23:04:15,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6289 states to 6289 states and 9988 transitions. [2024-11-09 23:04:15,298 INFO L78 Accepts]: Start accepts. Automaton has 6289 states and 9988 transitions. Word has length 174 [2024-11-09 23:04:15,298 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:04:15,298 INFO L471 AbstractCegarLoop]: Abstraction has 6289 states and 9988 transitions. [2024-11-09 23:04:15,302 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 18.833333333333332) internal successors, (113), 3 states have internal predecessors, (113), 2 states have call successors, (20), 5 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-09 23:04:15,302 INFO L276 IsEmpty]: Start isEmpty. Operand 6289 states and 9988 transitions. [2024-11-09 23:04:15,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2024-11-09 23:04:15,334 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:04:15,335 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 23:04:15,335 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-09 23:04:15,335 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:04:15,336 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:04:15,336 INFO L85 PathProgramCache]: Analyzing trace with hash 1670044962, now seen corresponding path program 1 times [2024-11-09 23:04:15,336 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:04:15,337 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1238689394] [2024-11-09 23:04:15,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:04:15,337 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:04:15,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:04:15,408 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-09 23:04:15,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:04:15,417 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-09 23:04:15,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:04:15,420 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-09 23:04:15,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:04:15,422 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-09 23:04:15,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:04:15,424 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-09 23:04:15,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:04:15,426 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-09 23:04:15,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:04:15,434 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-09 23:04:15,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:04:15,436 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-09 23:04:15,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:04:15,438 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-09 23:04:15,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:04:15,439 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-09 23:04:15,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:04:15,441 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2024-11-09 23:04:15,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:04:15,442 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2024-11-09 23:04:15,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:04:15,443 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2024-11-09 23:04:15,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:04:15,445 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2024-11-09 23:04:15,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:04:15,447 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-09 23:04:15,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:04:15,448 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2024-11-09 23:04:15,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:04:15,449 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2024-11-09 23:04:15,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:04:15,451 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2024-11-09 23:04:15,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:04:15,453 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2024-11-09 23:04:15,453 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:04:15,453 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1238689394] [2024-11-09 23:04:15,453 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1238689394] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:04:15,453 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:04:15,453 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-09 23:04:15,453 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [5931939] [2024-11-09 23:04:15,454 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:04:15,454 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 23:04:15,454 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:04:15,454 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 23:04:15,455 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-09 23:04:15,455 INFO L87 Difference]: Start difference. First operand 6289 states and 9988 transitions. Second operand has 6 states, 6 states have (on average 19.0) internal successors, (114), 3 states have internal predecessors, (114), 2 states have call successors, (20), 5 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-09 23:04:16,620 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:04:16,620 INFO L93 Difference]: Finished difference Result 15679 states and 25308 transitions. [2024-11-09 23:04:16,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-09 23:04:16,621 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 19.0) internal successors, (114), 3 states have internal predecessors, (114), 2 states have call successors, (20), 5 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 175 [2024-11-09 23:04:16,622 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:04:16,685 INFO L225 Difference]: With dead ends: 15679 [2024-11-09 23:04:16,685 INFO L226 Difference]: Without dead ends: 10601 [2024-11-09 23:04:16,745 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2024-11-09 23:04:16,746 INFO L432 NwaCegarLoop]: 181 mSDtfsCounter, 901 mSDsluCounter, 521 mSDsCounter, 0 mSdLazyCounter, 1042 mSolverCounterSat, 298 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 916 SdHoareTripleChecker+Valid, 702 SdHoareTripleChecker+Invalid, 1340 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 298 IncrementalHoareTripleChecker+Valid, 1042 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-09 23:04:16,746 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [916 Valid, 702 Invalid, 1340 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [298 Valid, 1042 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-09 23:04:16,755 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10601 states. [2024-11-09 23:04:17,089 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10601 to 10519. [2024-11-09 23:04:17,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10519 states, 8922 states have (on average 1.4930508854516924) internal successors, (13321), 8929 states have internal predecessors, (13321), 1569 states have call successors, (1569), 23 states have call predecessors, (1569), 27 states have return successors, (1764), 1568 states have call predecessors, (1764), 1568 states have call successors, (1764) [2024-11-09 23:04:17,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10519 states to 10519 states and 16654 transitions. [2024-11-09 23:04:17,142 INFO L78 Accepts]: Start accepts. Automaton has 10519 states and 16654 transitions. Word has length 175 [2024-11-09 23:04:17,142 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:04:17,142 INFO L471 AbstractCegarLoop]: Abstraction has 10519 states and 16654 transitions. [2024-11-09 23:04:17,143 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 19.0) internal successors, (114), 3 states have internal predecessors, (114), 2 states have call successors, (20), 5 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-09 23:04:17,143 INFO L276 IsEmpty]: Start isEmpty. Operand 10519 states and 16654 transitions. [2024-11-09 23:04:17,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2024-11-09 23:04:17,181 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:04:17,182 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 23:04:17,182 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-09 23:04:17,182 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:04:17,182 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:04:17,182 INFO L85 PathProgramCache]: Analyzing trace with hash 370178918, now seen corresponding path program 1 times [2024-11-09 23:04:17,183 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:04:17,183 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1526387783] [2024-11-09 23:04:17,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:04:17,183 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:04:17,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:04:17,259 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-09 23:04:17,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:04:17,269 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-09 23:04:17,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:04:17,271 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-09 23:04:17,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:04:17,274 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-09 23:04:17,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:04:17,277 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-09 23:04:17,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:04:17,279 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-09 23:04:17,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:04:17,287 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-09 23:04:17,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:04:17,289 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-11-09 23:04:17,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:04:17,290 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-11-09 23:04:17,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:04:17,291 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-11-09 23:04:17,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:04:17,293 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-11-09 23:04:17,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:04:17,294 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2024-11-09 23:04:17,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:04:17,295 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2024-11-09 23:04:17,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:04:17,297 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2024-11-09 23:04:17,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:04:17,299 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-09 23:04:17,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:04:17,300 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2024-11-09 23:04:17,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:04:17,301 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2024-11-09 23:04:17,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:04:17,303 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2024-11-09 23:04:17,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:04:17,305 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2024-11-09 23:04:17,305 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:04:17,305 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1526387783] [2024-11-09 23:04:17,305 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1526387783] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:04:17,305 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:04:17,305 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-09 23:04:17,305 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [439598798] [2024-11-09 23:04:17,305 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:04:17,306 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 23:04:17,306 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:04:17,307 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 23:04:17,307 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-09 23:04:17,308 INFO L87 Difference]: Start difference. First operand 10519 states and 16654 transitions. Second operand has 6 states, 6 states have (on average 19.166666666666668) internal successors, (115), 3 states have internal predecessors, (115), 2 states have call successors, (20), 5 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-09 23:04:18,610 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:04:18,611 INFO L93 Difference]: Finished difference Result 27393 states and 44069 transitions. [2024-11-09 23:04:18,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-09 23:04:18,611 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 19.166666666666668) internal successors, (115), 3 states have internal predecessors, (115), 2 states have call successors, (20), 5 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 176 [2024-11-09 23:04:18,611 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:04:18,672 INFO L225 Difference]: With dead ends: 27393 [2024-11-09 23:04:18,673 INFO L226 Difference]: Without dead ends: 18593 [2024-11-09 23:04:18,696 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2024-11-09 23:04:18,697 INFO L432 NwaCegarLoop]: 189 mSDtfsCounter, 894 mSDsluCounter, 536 mSDsCounter, 0 mSdLazyCounter, 1055 mSolverCounterSat, 295 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 909 SdHoareTripleChecker+Valid, 725 SdHoareTripleChecker+Invalid, 1350 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 295 IncrementalHoareTripleChecker+Valid, 1055 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-09 23:04:18,697 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [909 Valid, 725 Invalid, 1350 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [295 Valid, 1055 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-09 23:04:18,715 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18593 states. [2024-11-09 23:04:19,281 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18593 to 18511. [2024-11-09 23:04:19,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18511 states, 15711 states have (on average 1.4821462669467251) internal successors, (23286), 15718 states have internal predecessors, (23286), 2772 states have call successors, (2772), 23 states have call predecessors, (2772), 27 states have return successors, (3111), 2771 states have call predecessors, (3111), 2771 states have call successors, (3111) [2024-11-09 23:04:19,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18511 states to 18511 states and 29169 transitions. [2024-11-09 23:04:19,373 INFO L78 Accepts]: Start accepts. Automaton has 18511 states and 29169 transitions. Word has length 176 [2024-11-09 23:04:19,374 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:04:19,374 INFO L471 AbstractCegarLoop]: Abstraction has 18511 states and 29169 transitions. [2024-11-09 23:04:19,374 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 19.166666666666668) internal successors, (115), 3 states have internal predecessors, (115), 2 states have call successors, (20), 5 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-09 23:04:19,374 INFO L276 IsEmpty]: Start isEmpty. Operand 18511 states and 29169 transitions. [2024-11-09 23:04:19,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2024-11-09 23:04:19,418 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:04:19,418 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 23:04:19,418 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-09 23:04:19,418 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:04:19,419 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:04:19,419 INFO L85 PathProgramCache]: Analyzing trace with hash 1564059202, now seen corresponding path program 1 times [2024-11-09 23:04:19,419 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:04:19,419 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2105511896] [2024-11-09 23:04:19,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:04:19,420 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:04:19,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:04:19,493 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-09 23:04:19,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:04:19,503 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-09 23:04:19,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:04:19,506 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-09 23:04:19,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:04:19,509 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-09 23:04:19,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:04:19,511 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-09 23:04:19,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:04:19,513 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-09 23:04:19,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:04:19,521 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-09 23:04:19,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:04:19,523 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-09 23:04:19,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:04:19,525 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-11-09 23:04:19,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:04:19,526 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-11-09 23:04:19,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:04:19,527 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-11-09 23:04:19,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:04:19,529 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2024-11-09 23:04:19,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:04:19,530 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-11-09 23:04:19,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:04:19,531 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2024-11-09 23:04:19,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:04:19,533 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-09 23:04:19,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:04:19,534 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2024-11-09 23:04:19,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:04:19,536 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2024-11-09 23:04:19,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:04:19,541 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2024-11-09 23:04:19,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:04:19,543 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2024-11-09 23:04:19,543 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:04:19,543 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2105511896] [2024-11-09 23:04:19,543 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2105511896] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:04:19,543 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:04:19,544 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-09 23:04:19,544 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1040952926] [2024-11-09 23:04:19,544 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:04:19,544 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 23:04:19,544 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:04:19,545 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 23:04:19,545 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-09 23:04:19,545 INFO L87 Difference]: Start difference. First operand 18511 states and 29169 transitions. Second operand has 6 states, 6 states have (on average 19.333333333333332) internal successors, (116), 3 states have internal predecessors, (116), 2 states have call successors, (20), 5 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-09 23:04:21,069 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:04:21,069 INFO L93 Difference]: Finished difference Result 49331 states and 79034 transitions. [2024-11-09 23:04:21,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-09 23:04:21,070 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 19.333333333333332) internal successors, (116), 3 states have internal predecessors, (116), 2 states have call successors, (20), 5 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 177 [2024-11-09 23:04:21,070 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:04:21,217 INFO L225 Difference]: With dead ends: 49331 [2024-11-09 23:04:21,217 INFO L226 Difference]: Without dead ends: 33260 [2024-11-09 23:04:21,282 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2024-11-09 23:04:21,283 INFO L432 NwaCegarLoop]: 179 mSDtfsCounter, 919 mSDsluCounter, 518 mSDsCounter, 0 mSdLazyCounter, 1008 mSolverCounterSat, 304 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 934 SdHoareTripleChecker+Valid, 697 SdHoareTripleChecker+Invalid, 1312 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 304 IncrementalHoareTripleChecker+Valid, 1008 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-09 23:04:21,283 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [934 Valid, 697 Invalid, 1312 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [304 Valid, 1008 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-09 23:04:21,312 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33260 states. [2024-11-09 23:04:22,350 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33260 to 33178. [2024-11-09 23:04:22,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33178 states, 28339 states have (on average 1.474681534281379) internal successors, (41791), 28346 states have internal predecessors, (41791), 4811 states have call successors, (4811), 23 states have call predecessors, (4811), 27 states have return successors, (5424), 4810 states have call predecessors, (5424), 4810 states have call successors, (5424) [2024-11-09 23:04:22,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33178 states to 33178 states and 52026 transitions. [2024-11-09 23:04:22,527 INFO L78 Accepts]: Start accepts. Automaton has 33178 states and 52026 transitions. Word has length 177 [2024-11-09 23:04:22,531 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:04:22,531 INFO L471 AbstractCegarLoop]: Abstraction has 33178 states and 52026 transitions. [2024-11-09 23:04:22,532 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 19.333333333333332) internal successors, (116), 3 states have internal predecessors, (116), 2 states have call successors, (20), 5 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-09 23:04:22,532 INFO L276 IsEmpty]: Start isEmpty. Operand 33178 states and 52026 transitions. [2024-11-09 23:04:22,588 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2024-11-09 23:04:22,588 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:04:22,588 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 23:04:22,589 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-09 23:04:22,589 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:04:22,589 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:04:22,589 INFO L85 PathProgramCache]: Analyzing trace with hash -659517498, now seen corresponding path program 1 times [2024-11-09 23:04:22,589 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:04:22,589 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1661685936] [2024-11-09 23:04:22,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:04:22,590 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:04:22,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:04:22,655 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-09 23:04:22,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:04:22,664 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-09 23:04:22,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:04:22,667 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-09 23:04:22,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:04:22,668 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-09 23:04:22,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:04:22,670 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-09 23:04:22,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:04:22,673 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-09 23:04:22,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:04:22,680 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-11-09 23:04:22,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:04:22,681 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-11-09 23:04:22,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:04:22,682 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-11-09 23:04:22,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:04:22,684 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-11-09 23:04:22,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:04:22,685 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2024-11-09 23:04:22,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:04:22,686 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2024-11-09 23:04:22,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:04:22,687 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-11-09 23:04:22,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:04:22,688 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2024-11-09 23:04:22,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:04:22,690 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-09 23:04:22,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:04:22,691 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2024-11-09 23:04:22,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:04:22,693 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2024-11-09 23:04:22,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:04:22,694 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2024-11-09 23:04:22,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:04:22,696 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2024-11-09 23:04:22,696 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:04:22,696 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1661685936] [2024-11-09 23:04:22,696 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1661685936] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:04:22,696 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:04:22,696 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-09 23:04:22,696 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1573430570] [2024-11-09 23:04:22,696 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:04:22,698 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 23:04:22,698 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:04:22,698 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 23:04:22,698 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-09 23:04:22,698 INFO L87 Difference]: Start difference. First operand 33178 states and 52026 transitions. Second operand has 6 states, 6 states have (on average 19.5) internal successors, (117), 3 states have internal predecessors, (117), 2 states have call successors, (20), 5 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-09 23:04:25,052 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:04:25,052 INFO L93 Difference]: Finished difference Result 90945 states and 144460 transitions. [2024-11-09 23:04:25,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-09 23:04:25,053 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 19.5) internal successors, (117), 3 states have internal predecessors, (117), 2 states have call successors, (20), 5 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 178 [2024-11-09 23:04:25,053 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:04:25,286 INFO L225 Difference]: With dead ends: 90945 [2024-11-09 23:04:25,286 INFO L226 Difference]: Without dead ends: 61085 [2024-11-09 23:04:25,549 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2024-11-09 23:04:25,550 INFO L432 NwaCegarLoop]: 181 mSDtfsCounter, 878 mSDsluCounter, 521 mSDsCounter, 0 mSdLazyCounter, 1066 mSolverCounterSat, 285 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 893 SdHoareTripleChecker+Valid, 702 SdHoareTripleChecker+Invalid, 1351 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 285 IncrementalHoareTripleChecker+Valid, 1066 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-09 23:04:25,553 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [893 Valid, 702 Invalid, 1351 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [285 Valid, 1066 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-09 23:04:25,597 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61085 states. [2024-11-09 23:04:27,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61085 to 61003. [2024-11-09 23:04:27,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61003 states, 52449 states have (on average 1.466338729051078) internal successors, (76908), 52456 states have internal predecessors, (76908), 8526 states have call successors, (8526), 23 states have call predecessors, (8526), 27 states have return successors, (9671), 8525 states have call predecessors, (9671), 8525 states have call successors, (9671) [2024-11-09 23:04:27,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61003 states to 61003 states and 95105 transitions. [2024-11-09 23:04:27,990 INFO L78 Accepts]: Start accepts. Automaton has 61003 states and 95105 transitions. Word has length 178 [2024-11-09 23:04:27,991 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:04:27,991 INFO L471 AbstractCegarLoop]: Abstraction has 61003 states and 95105 transitions. [2024-11-09 23:04:27,992 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 19.5) internal successors, (117), 3 states have internal predecessors, (117), 2 states have call successors, (20), 5 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-09 23:04:27,992 INFO L276 IsEmpty]: Start isEmpty. Operand 61003 states and 95105 transitions. [2024-11-09 23:04:28,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2024-11-09 23:04:28,088 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:04:28,089 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 23:04:28,089 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-09 23:04:28,089 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:04:28,089 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:04:28,090 INFO L85 PathProgramCache]: Analyzing trace with hash 115179458, now seen corresponding path program 1 times [2024-11-09 23:04:28,090 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:04:28,090 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1521432458] [2024-11-09 23:04:28,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:04:28,090 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:04:28,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:04:28,178 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-09 23:04:28,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:04:28,191 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-09 23:04:28,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:04:28,193 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-09 23:04:28,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:04:28,198 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-09 23:04:28,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:04:28,201 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-09 23:04:28,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:04:28,203 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-09 23:04:28,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:04:28,214 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-11-09 23:04:28,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:04:28,216 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2024-11-09 23:04:28,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:04:28,218 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-09 23:04:28,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:04:28,219 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-11-09 23:04:28,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:04:28,224 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-11-09 23:04:28,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:04:28,225 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-11-09 23:04:28,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:04:28,227 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2024-11-09 23:04:28,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:04:28,228 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2024-11-09 23:04:28,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:04:28,231 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-09 23:04:28,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:04:28,232 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2024-11-09 23:04:28,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:04:28,237 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2024-11-09 23:04:28,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:04:28,239 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2024-11-09 23:04:28,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:04:28,244 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2024-11-09 23:04:28,244 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:04:28,244 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1521432458] [2024-11-09 23:04:28,244 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1521432458] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:04:28,244 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:04:28,244 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-09 23:04:28,245 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1653638387] [2024-11-09 23:04:28,245 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:04:28,245 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 23:04:28,245 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:04:28,246 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 23:04:28,246 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-09 23:04:28,246 INFO L87 Difference]: Start difference. First operand 61003 states and 95105 transitions. Second operand has 6 states, 6 states have (on average 19.666666666666668) internal successors, (118), 3 states have internal predecessors, (118), 2 states have call successors, (20), 5 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-09 23:04:31,124 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:04:31,124 INFO L93 Difference]: Finished difference Result 114524 states and 181684 transitions. [2024-11-09 23:04:31,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-09 23:04:31,125 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 19.666666666666668) internal successors, (118), 3 states have internal predecessors, (118), 2 states have call successors, (20), 5 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 179 [2024-11-09 23:04:31,125 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:04:31,573 INFO L225 Difference]: With dead ends: 114524 [2024-11-09 23:04:31,573 INFO L226 Difference]: Without dead ends: 114344 [2024-11-09 23:04:31,641 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2024-11-09 23:04:31,644 INFO L432 NwaCegarLoop]: 179 mSDtfsCounter, 930 mSDsluCounter, 520 mSDsCounter, 0 mSdLazyCounter, 992 mSolverCounterSat, 303 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 944 SdHoareTripleChecker+Valid, 699 SdHoareTripleChecker+Invalid, 1295 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 303 IncrementalHoareTripleChecker+Valid, 992 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-09 23:04:31,644 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [944 Valid, 699 Invalid, 1295 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [303 Valid, 992 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-09 23:04:31,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114344 states. [2024-11-09 23:04:34,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114344 to 114262. [2024-11-09 23:04:34,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 114262 states, 98909 states have (on average 1.4569857141412814) internal successors, (144109), 98916 states have internal predecessors, (144109), 15325 states have call successors, (15325), 23 states have call predecessors, (15325), 27 states have return successors, (17516), 15324 states have call predecessors, (17516), 15324 states have call successors, (17516) [2024-11-09 23:04:35,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114262 states to 114262 states and 176950 transitions. [2024-11-09 23:04:35,712 INFO L78 Accepts]: Start accepts. Automaton has 114262 states and 176950 transitions. Word has length 179 [2024-11-09 23:04:35,715 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:04:35,716 INFO L471 AbstractCegarLoop]: Abstraction has 114262 states and 176950 transitions. [2024-11-09 23:04:35,716 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 19.666666666666668) internal successors, (118), 3 states have internal predecessors, (118), 2 states have call successors, (20), 5 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-09 23:04:35,716 INFO L276 IsEmpty]: Start isEmpty. Operand 114262 states and 176950 transitions. [2024-11-09 23:04:35,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2024-11-09 23:04:35,911 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:04:35,911 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 23:04:35,911 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-09 23:04:35,912 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:04:35,912 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:04:35,912 INFO L85 PathProgramCache]: Analyzing trace with hash -1451913548, now seen corresponding path program 2 times [2024-11-09 23:04:35,912 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:04:35,912 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [617851092] [2024-11-09 23:04:35,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:04:35,913 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:04:35,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:04:36,027 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-09 23:04:36,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:04:36,037 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-09 23:04:36,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:04:36,040 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-09 23:04:36,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:04:36,042 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-09 23:04:36,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:04:36,047 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-09 23:04:36,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:04:36,051 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-09 23:04:36,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:04:36,061 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-09 23:04:36,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:04:36,063 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-09 23:04:36,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:04:36,064 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-11-09 23:04:36,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:04:36,066 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-11-09 23:04:36,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:04:36,067 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-11-09 23:04:36,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:04:36,068 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2024-11-09 23:04:36,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:04:36,069 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2024-11-09 23:04:36,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:04:36,070 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2024-11-09 23:04:36,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:04:36,072 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-09 23:04:36,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:04:36,073 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2024-11-09 23:04:36,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:04:36,074 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2024-11-09 23:04:36,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:04:36,076 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2024-11-09 23:04:36,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:04:36,077 INFO L134 CoverageAnalysis]: Checked inductivity of 103 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 59 trivial. 0 not checked. [2024-11-09 23:04:36,077 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:04:36,077 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [617851092] [2024-11-09 23:04:36,078 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [617851092] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:04:36,078 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:04:36,078 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-09 23:04:36,078 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [232044782] [2024-11-09 23:04:36,078 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:04:36,078 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-09 23:04:36,079 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:04:36,079 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-09 23:04:36,079 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-09 23:04:36,080 INFO L87 Difference]: Start difference. First operand 114262 states and 176950 transitions. Second operand has 8 states, 8 states have (on average 13.5) internal successors, (108), 5 states have internal predecessors, (108), 2 states have call successors, (20), 5 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-09 23:04:39,978 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:04:39,978 INFO L93 Difference]: Finished difference Result 223180 states and 349147 transitions. [2024-11-09 23:04:39,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-09 23:04:39,978 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 13.5) internal successors, (108), 5 states have internal predecessors, (108), 2 states have call successors, (20), 5 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 180 [2024-11-09 23:04:39,979 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:04:40,343 INFO L225 Difference]: With dead ends: 223180 [2024-11-09 23:04:40,343 INFO L226 Difference]: Without dead ends: 114344 [2024-11-09 23:04:40,504 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2024-11-09 23:04:40,505 INFO L432 NwaCegarLoop]: 294 mSDtfsCounter, 951 mSDsluCounter, 1311 mSDsCounter, 0 mSdLazyCounter, 1893 mSolverCounterSat, 275 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 966 SdHoareTripleChecker+Valid, 1605 SdHoareTripleChecker+Invalid, 2168 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 275 IncrementalHoareTripleChecker+Valid, 1893 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-09 23:04:40,505 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [966 Valid, 1605 Invalid, 2168 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [275 Valid, 1893 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-09 23:04:40,590 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114344 states. [2024-11-09 23:04:43,708 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114344 to 114262. [2024-11-09 23:04:43,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 114262 states, 98909 states have (on average 1.4465114398083085) internal successors, (143073), 98916 states have internal predecessors, (143073), 15325 states have call successors, (15325), 23 states have call predecessors, (15325), 27 states have return successors, (17516), 15324 states have call predecessors, (17516), 15324 states have call successors, (17516) [2024-11-09 23:04:44,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114262 states to 114262 states and 175914 transitions. [2024-11-09 23:04:44,117 INFO L78 Accepts]: Start accepts. Automaton has 114262 states and 175914 transitions. Word has length 180 [2024-11-09 23:04:44,117 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:04:44,117 INFO L471 AbstractCegarLoop]: Abstraction has 114262 states and 175914 transitions. [2024-11-09 23:04:44,117 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 13.5) internal successors, (108), 5 states have internal predecessors, (108), 2 states have call successors, (20), 5 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-09 23:04:44,117 INFO L276 IsEmpty]: Start isEmpty. Operand 114262 states and 175914 transitions. [2024-11-09 23:04:44,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2024-11-09 23:04:44,218 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:04:44,219 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 23:04:44,219 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-09 23:04:44,219 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:04:44,219 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:04:44,219 INFO L85 PathProgramCache]: Analyzing trace with hash 576765990, now seen corresponding path program 1 times [2024-11-09 23:04:44,219 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:04:44,219 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [425829469] [2024-11-09 23:04:44,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:04:44,220 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:04:44,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:04:45,022 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-09 23:04:45,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:04:45,043 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-09 23:04:45,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:04:45,046 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-09 23:04:45,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:04:45,049 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-09 23:04:45,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:04:45,051 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-09 23:04:45,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:04:45,054 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-09 23:04:45,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:04:45,069 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-09 23:04:45,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:04:45,071 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-09 23:04:45,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:04:45,073 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-11-09 23:04:45,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:04:45,087 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-11-09 23:04:45,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:04:45,116 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-11-09 23:04:45,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:04:45,118 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2024-11-09 23:04:45,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:04:45,120 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2024-11-09 23:04:45,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:04:45,121 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2024-11-09 23:04:45,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:04:45,123 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-09 23:04:45,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:04:45,124 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2024-11-09 23:04:45,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:04:45,126 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2024-11-09 23:04:45,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:04:45,127 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2024-11-09 23:04:45,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:04:45,128 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2024-11-09 23:04:45,129 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:04:45,129 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [425829469] [2024-11-09 23:04:45,129 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [425829469] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 23:04:45,129 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [475247564] [2024-11-09 23:04:45,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:04:45,129 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 23:04:45,130 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 23:04:45,131 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 23:04:45,132 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-09 23:04:45,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:04:45,467 INFO L255 TraceCheckSpWp]: Trace formula consists of 1220 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-09 23:04:45,471 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 23:04:45,696 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 18 proven. 6 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2024-11-09 23:04:45,697 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 23:04:46,068 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 2 proven. 8 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2024-11-09 23:04:46,068 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [475247564] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 23:04:46,068 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 23:04:46,069 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 9, 9] total 30 [2024-11-09 23:04:46,069 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1640166679] [2024-11-09 23:04:46,069 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 23:04:46,070 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2024-11-09 23:04:46,070 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:04:46,071 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2024-11-09 23:04:46,071 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=796, Unknown=0, NotChecked=0, Total=870 [2024-11-09 23:04:46,071 INFO L87 Difference]: Start difference. First operand 114262 states and 175914 transitions. Second operand has 30 states, 29 states have (on average 10.137931034482758) internal successors, (294), 23 states have internal predecessors, (294), 9 states have call successors, (51), 11 states have call predecessors, (51), 11 states have return successors, (45), 11 states have call predecessors, (45), 9 states have call successors, (45)